diff --git a/web/2015/15.html b/web/2015/15.html deleted file mode 100644 index 5eac6eac..00000000 --- a/web/2015/15.html +++ /dev/null @@ -1,57 +0,0 @@ - - - - - - - -Fork me on GitHub - -Home - - - - - -
-

Do You have Time to Chat?

-

- Let's build a chat app. But we're going to do it in a mind boggling way. - Conversations take time to have, therefore rather than storing every message - individually, we are going to store them in time. What does that even mean? -

-

- The first requirement is understanding immutable data. - Most database systems overwrite old data with new data when there is an update. - This preserves data in space, but loses its history. - Immutable data is the idea of never changing data, - but appending a new record every time. Such approach preserves history. -

- -

- -

-
- - - - - - \ No newline at end of file diff --git a/web/converse.html b/web/converse.html deleted file mode 100644 index 30ba22ba..00000000 --- a/web/converse.html +++ /dev/null @@ -1,293 +0,0 @@ - - - - - - - - -

Now that we can jot down our thoughts in a To-Do app, let us add something ambitious to it. To-Do: Build a realtime chat app! Which is exactly what we are going to do in this tutorial. It is the next natural step, we can track our thoughts - but now we want to have conversations about them with others to refine our ideas.

- -

So what are the requirements? The ability to write a message, send a message, and receive messages. We will also need a space to keep these messages in, and a web page to access the chat through. Let's start with making a copy of our code from the To-Do app! You can edit the code below, which will update the live preview.

- -
... loading editor and preview ... - -
- - - - -
-

The first thing we need to do is update the HTML.

-
    -
  1. Change the text in the h1 tag to "Chat".
    2. -
  2. Move the ul tags up to be above the form tag.
    3. -
  3. Add an opening closing textarea tag inbetween the input and button.
    4. -
  4. Make the button say "send" instead of "Add".
    5. -
  5. - Now we want to model what the HTML for our message will look like. Copy the following into the editor to be above the first script tag: - -
    6. -
-

What is happening?

- - -
- -
-

Before we get started with writing any javascript, we need to clean up some code that no longer applies! Go ahead and remove the following 3 lines of code from the bottom of our script tag:

- - -
- -
-

Wonderful! Now we want to change the name of the data so we do not get our previous app's data. Additionally, if we want this data to be shared and updated in realtime with other people, we have to connect to them directly or a server that does this for us. Modify the line where we initialize gun (hint: it is the very first line) with this:

- -

What does this do?

- - -
- -
-

Oops, our current code is handling the data incorrectly. We need to fix that, adjust the commented line in the editor to this:

- -

Why?

- - -
- -
-

We still have breaking changes, we need to revamp the inside of the val function with the following:

- -

What does this do?

- -

Now we need to make sure that the data we save matches the same format as the messages we receive.

- -
- -
-

Replace everything inside of the form on submit function with the following:

- -

What is happening?

- - -
- -
-

Wow! Our chat is fully functioning! You can pat yourself on the back and be done now if you want. But there are lots of little things we can do to polish up the experience.

-

We will not be doing any design, as that exceeds the scope of what this tutorial teaches. So prepare for your app to look pretty ugly, you can try to make things pretty on your own. What then, is left?

- - -
- -
-

Tutorial Unfinished, Sad Face. We're Working On It Though!

-

Check out the github in the meanwhile for more documentation.

-
- -
-

Congratulations! You have built a realtime chat app! That is quite the accomplishment, you should go celebrate by eating a sandwhich.

-

Now that we can converse with people, we might want to know who they are. In the next tutorial we will create a contact app with some basic social network features and learn a little bit about security.

- Coming Later! -

Check out the github in the meanwhile for more documentation.

-
- - - - diff --git a/web/deck/boi.png b/web/deck/boi.png deleted file mode 100644 index 6e0d9336..00000000 Binary files a/web/deck/boi.png and /dev/null differ diff --git a/web/deck/colors.png b/web/deck/colors.png deleted file mode 100644 index 9bcc8b01..00000000 Binary files a/web/deck/colors.png and /dev/null differ diff --git a/web/deck/dbs.png b/web/deck/dbs.png deleted file mode 100644 index a687381d..00000000 Binary files a/web/deck/dbs.png and /dev/null differ diff --git a/web/deck/deck.html b/web/deck/deck.html deleted file mode 100644 index dc0331b7..00000000 --- a/web/deck/deck.html +++ /dev/null @@ -1,46 +0,0 @@ - -
-
-
Problem
-
-
-
-
Hassle to deploy slow databases that are costly to scale
-
-
-
Solution
-
-
the NoDB database
-
-
-
How
-
-
peer to peer algorithms that mimic reality
-
-
-
Now
-
-
fastest growing trends ever in software history
-
-
-
Team
-
-
-
-
-
we@gunDB.io are raising $500k
-
\ No newline at end of file diff --git a/web/deck/failwhale.png b/web/deck/failwhale.png deleted file mode 100644 index 85fd8a2d..00000000 Binary files a/web/deck/failwhale.png and /dev/null differ diff --git a/web/deck/index.html b/web/deck/index.html deleted file mode 100644 index 4aac06a3..00000000 --- a/web/deck/index.html +++ /dev/null @@ -1,204 +0,0 @@ - - - gun - - - - -
- -
raising $1m
-
Realtime Distributed Graph Database
-
-
- $12k fulfilled by -
-
- Adam Draper, Boost; -
-
-
- -
- -
-
How
-
- Speed of light is the scientific barrier to the problem. -
-
- The crazy idea was what if we modeled data as light? -
-
- We could then exploit the quantum behavior of photons. -
-
- Such algorithms always collapse to the same answer eventually, even over significant latency. -
-
-
Why
-
- Instant load times, because everything is a cache in a Named Data Network1. -
-
- Combined with graphs, the mathematical superset of SQL and NoSQL, -
-
- Developers can now run Turing Complete queries on their data. -
-
- Big Data turns into meaningful data2, in fast and affordable ways. -
-
-
- [1] Van Jacobsen, - - A New Way to look at Networking - - Google Tech Talk. -
- [2] Alan Kay, - - The Future Doesn't Have to Be Incremental - - Tech Talk. -
-
-
-
-
Now
-
Market interest in javascript and graphs is exploding.
-
At accelerated rates never seen before in the software world.
- - -
Gun is the union of these two niches.
-
The facts predict they are the buzzwords of the future.
-
-
-
Team
-
Here are the people powering the
"Open Source Firebase", "Dropbox for Developers", or "Bitcoin for Data".
-
-
-
- - - -
- Mark Nadal - CEO, 4 years experience in Synchronization Systems. -
- Consulting clientele include a Thiel Fellow, - prototyped Prudential Retirement's SuperBowl advert's online interactive, - startup UCLA alumni. -
-
-
-
-
- - - -
- AJ ONeal - CIO, 8 years experience with Software and Database Architecture. -
- Contributor to NodeJS core, - in the top 1 percentile rank of all StackOverflow users, - built a Billboard Hot 100 rap artist's Twitter feed client. -
-
-
-
-
You?
-
- Gun is the first company in this space, but it is going to fill up fast. -
-

- Without any marketing, we already have 250+ developers interested. -
- With 1600 demo video views in less than 24 hours. -
-
-

- Our value proposition for developers, - slashing operational time and costs while making things faster and easier, -
is convincing enough that some are likely to even leave established non-javascript databases. -
-

- By being open source, we maintain trust with developers and get their contributions back. -
-

- Together, this effectively highgrades all the talent for us, away from new competitors. -
- Leaving them fighting to compete with "free". -
-
-

- Gun becomes the de facto, - like MySQL - and MongoDB did for their hype niche, -
and profits from enterprise licenses and consulting. -

-
- An established revenue model that you, as an investor, share in. Your choice. -
-
- - \ No newline at end of file diff --git a/web/deck/jargon.png b/web/deck/jargon.png deleted file mode 100644 index 5d46241a..00000000 Binary files a/web/deck/jargon.png and /dev/null differ diff --git a/web/deck/lang.png b/web/deck/lang.png deleted file mode 100644 index f23b44e4..00000000 Binary files a/web/deck/lang.png and /dev/null differ diff --git a/web/deck/nodejs.png b/web/deck/nodejs.png deleted file mode 100644 index c6c7b97b..00000000 Binary files a/web/deck/nodejs.png and /dev/null differ diff --git a/web/deck/polygen.png b/web/deck/polygen.png deleted file mode 100644 index 484325f8..00000000 Binary files a/web/deck/polygen.png and /dev/null differ diff --git a/web/deck/prudential.gif b/web/deck/prudential.gif deleted file mode 100644 index b4070b61..00000000 Binary files a/web/deck/prudential.gif and /dev/null differ diff --git a/web/deck/stackoverflow.png b/web/deck/stackoverflow.png deleted file mode 100644 index c5cf6f8d..00000000 Binary files a/web/deck/stackoverflow.png and /dev/null differ diff --git a/web/deck/stat.png b/web/deck/stat.png deleted file mode 100644 index e207a800..00000000 Binary files a/web/deck/stat.png and /dev/null differ diff --git a/web/deck/stats.png b/web/deck/stats.png deleted file mode 100644 index 4c7f32ad..00000000 Binary files a/web/deck/stats.png and /dev/null differ diff --git a/web/deck/team.jpg b/web/deck/team.jpg deleted file mode 100644 index fc64e26e..00000000 Binary files a/web/deck/team.jpg and /dev/null differ diff --git a/web/deck/team2.jpg b/web/deck/team2.jpg deleted file mode 100644 index 2dba2721..00000000 Binary files a/web/deck/team2.jpg and /dev/null differ diff --git a/web/deck/thiel.svg b/web/deck/thiel.svg deleted file mode 100644 index 87042472..00000000 --- a/web/deck/thiel.svg +++ /dev/null @@ -1,111 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/web/deck/ucla.png b/web/deck/ucla.png deleted file mode 100644 index abd53702..00000000 Binary files a/web/deck/ucla.png and /dev/null differ diff --git a/web/deck/wave.png b/web/deck/wave.png deleted file mode 100644 index 1628d3b5..00000000 Binary files a/web/deck/wave.png and /dev/null differ diff --git a/web/deck/whale.png b/web/deck/whale.png deleted file mode 100644 index 655dc68c..00000000 Binary files a/web/deck/whale.png and /dev/null differ diff --git a/web/dep/beautify/beautify-css.js b/web/dep/beautify/beautify-css.js deleted file mode 100644 index 2dd117c7..00000000 --- a/web/dep/beautify/beautify-css.js +++ /dev/null @@ -1,491 +0,0 @@ -/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */ -/* - - The MIT License (MIT) - - Copyright (c) 2007-2013 Einar Lielmanis and contributors. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. - - - CSS Beautifier ---------------- - - Written by Harutyun Amirjanyan, (amirjanyan@gmail.com) - - Based on code initially developed by: Einar Lielmanis, - http://jsbeautifier.org/ - - Usage: - css_beautify(source_text); - css_beautify(source_text, options); - - The options are (default in brackets): - indent_size (4) — indentation size, - indent_char (space) — character to indent with, - selector_separator_newline (true) - separate selectors with newline or - not (e.g. "a,\nbr" or "a, br") - end_with_newline (false) - end with a newline - newline_between_rules (true) - add a new line after every css rule - - e.g - - css_beautify(css_source_text, { - 'indent_size': 1, - 'indent_char': '\t', - 'selector_separator': ' ', - 'end_with_newline': false, - 'newline_between_rules': true - }); -*/ - -// http://www.w3.org/TR/CSS21/syndata.html#tokenization -// http://www.w3.org/TR/css3-syntax/ - -(function() { - function css_beautify(source_text, options) { - options = options || {}; - source_text = source_text || ''; - // HACK: newline parsing inconsistent. This brute force normalizes the input. - source_text = source_text.replace(/\r\n|[\r\u2028\u2029]/g, '\n') - - var indentSize = options.indent_size || 4; - var indentCharacter = options.indent_char || ' '; - var selectorSeparatorNewline = (options.selector_separator_newline === undefined) ? true : options.selector_separator_newline; - var end_with_newline = (options.end_with_newline === undefined) ? false : options.end_with_newline; - var newline_between_rules = (options.newline_between_rules === undefined) ? true : options.newline_between_rules; - var eol = options.eol ? options.eol : '\n'; - - // compatibility - if (typeof indentSize === "string") { - indentSize = parseInt(indentSize, 10); - } - - if(options.indent_with_tabs){ - indentCharacter = '\t'; - indentSize = 1; - } - - eol = eol.replace(/\\r/, '\r').replace(/\\n/, '\n') - - - // tokenizer - var whiteRe = /^\s+$/; - var wordRe = /[\w$\-_]/; - - var pos = -1, - ch; - var parenLevel = 0; - - function next() { - ch = source_text.charAt(++pos); - return ch || ''; - } - - function peek(skipWhitespace) { - var result = ''; - var prev_pos = pos; - if (skipWhitespace) { - eatWhitespace(); - } - result = source_text.charAt(pos + 1) || ''; - pos = prev_pos - 1; - next(); - return result; - } - - function eatString(endChars) { - var start = pos; - while (next()) { - if (ch === "\\") { - next(); - } else if (endChars.indexOf(ch) !== -1) { - break; - } else if (ch === "\n") { - break; - } - } - return source_text.substring(start, pos + 1); - } - - function peekString(endChar) { - var prev_pos = pos; - var str = eatString(endChar); - pos = prev_pos - 1; - next(); - return str; - } - - function eatWhitespace() { - var result = ''; - while (whiteRe.test(peek())) { - next(); - result += ch; - } - return result; - } - - function skipWhitespace() { - var result = ''; - if (ch && whiteRe.test(ch)) { - result = ch; - } - while (whiteRe.test(next())) { - result += ch; - } - return result; - } - - function eatComment(singleLine) { - var start = pos; - singleLine = peek() === "/"; - next(); - while (next()) { - if (!singleLine && ch === "*" && peek() === "/") { - next(); - break; - } else if (singleLine && ch === "\n") { - return source_text.substring(start, pos); - } - } - - return source_text.substring(start, pos) + ch; - } - - - function lookBack(str) { - return source_text.substring(pos - str.length, pos).toLowerCase() === - str; - } - - // Nested pseudo-class if we are insideRule - // and the next special character found opens - // a new block - function foundNestedPseudoClass() { - var openParen = 0; - for (var i = pos + 1; i < source_text.length; i++) { - var ch = source_text.charAt(i); - if (ch === "{") { - return true; - } else if (ch === '(') { - // pseudoclasses can contain () - openParen += 1; - } else if (ch === ')') { - if (openParen == 0) { - return false; - } - openParen -= 1; - } else if (ch === ";" || ch === "}") { - return false; - } - } - return false; - } - - // printer - var basebaseIndentString = source_text.match(/^[\t ]*/)[0]; - var singleIndent = new Array(indentSize + 1).join(indentCharacter); - var indentLevel = 0; - var nestedLevel = 0; - - function indent() { - indentLevel++; - basebaseIndentString += singleIndent; - } - - function outdent() { - indentLevel--; - basebaseIndentString = basebaseIndentString.slice(0, -indentSize); - } - - var print = {}; - print["{"] = function(ch) { - print.singleSpace(); - output.push(ch); - print.newLine(); - }; - print["}"] = function(ch) { - print.newLine(); - output.push(ch); - print.newLine(); - }; - - print._lastCharWhitespace = function() { - return whiteRe.test(output[output.length - 1]); - }; - - print.newLine = function(keepWhitespace) { - if (output.length) { - if (!keepWhitespace && output[output.length - 1] !== '\n') { - print.trim(); - } - - output.push('\n'); - - if (basebaseIndentString) { - output.push(basebaseIndentString); - } - } - }; - print.singleSpace = function() { - if (output.length && !print._lastCharWhitespace()) { - output.push(' '); - } - }; - - print.preserveSingleSpace = function() { - if (isAfterSpace) { - print.singleSpace(); - } - }; - - print.trim = function() { - while (print._lastCharWhitespace()) { - output.pop(); - } - }; - - - var output = []; - /*_____________________--------------------_____________________*/ - - var insideRule = false; - var insidePropertyValue = false; - var enteringConditionalGroup = false; - var top_ch = ''; - var last_top_ch = ''; - - while (true) { - var whitespace = skipWhitespace(); - var isAfterSpace = whitespace !== ''; - var isAfterNewline = whitespace.indexOf('\n') !== -1; - last_top_ch = top_ch; - top_ch = ch; - - if (!ch) { - break; - } else if (ch === '/' && peek() === '*') { /* css comment */ - var header = indentLevel === 0; - - if (isAfterNewline || header) { - print.newLine(); - } - - output.push(eatComment()); - print.newLine(); - if (header) { - print.newLine(true); - } - } else if (ch === '/' && peek() === '/') { // single line comment - if (!isAfterNewline && last_top_ch !== '{' ) { - print.trim(); - } - print.singleSpace(); - output.push(eatComment()); - print.newLine(); - } else if (ch === '@') { - print.preserveSingleSpace(); - output.push(ch); - - // strip trailing space, if present, for hash property checks - var variableOrRule = peekString(": ,;{}()[]/='\""); - - if (variableOrRule.match(/[ :]$/)) { - // we have a variable or pseudo-class, add it and insert one space before continuing - next(); - variableOrRule = eatString(": ").replace(/\s$/, ''); - output.push(variableOrRule); - print.singleSpace(); - } - - variableOrRule = variableOrRule.replace(/\s$/, '') - - // might be a nesting at-rule - if (variableOrRule in css_beautify.NESTED_AT_RULE) { - nestedLevel += 1; - if (variableOrRule in css_beautify.CONDITIONAL_GROUP_RULE) { - enteringConditionalGroup = true; - } - } - } else if (ch === '#' && peek() === '{') { - print.preserveSingleSpace(); - output.push(eatString('}')); - } else if (ch === '{') { - if (peek(true) === '}') { - eatWhitespace(); - next(); - print.singleSpace(); - output.push("{}"); - print.newLine(); - if (newline_between_rules && indentLevel === 0) { - print.newLine(true); - } - } else { - indent(); - print["{"](ch); - // when entering conditional groups, only rulesets are allowed - if (enteringConditionalGroup) { - enteringConditionalGroup = false; - insideRule = (indentLevel > nestedLevel); - } else { - // otherwise, declarations are also allowed - insideRule = (indentLevel >= nestedLevel); - } - } - } else if (ch === '}') { - outdent(); - print["}"](ch); - insideRule = false; - insidePropertyValue = false; - if (nestedLevel) { - nestedLevel--; - } - if (newline_between_rules && indentLevel === 0) { - print.newLine(true); - } - } else if (ch === ":") { - eatWhitespace(); - if ((insideRule || enteringConditionalGroup) && - !(lookBack("&") || foundNestedPseudoClass())) { - // 'property: value' delimiter - // which could be in a conditional group query - insidePropertyValue = true; - output.push(':'); - print.singleSpace(); - } else { - // sass/less parent reference don't use a space - // sass nested pseudo-class don't use a space - if (peek() === ":") { - // pseudo-element - next(); - output.push("::"); - } else { - // pseudo-class - output.push(':'); - } - } - } else if (ch === '"' || ch === '\'') { - print.preserveSingleSpace(); - output.push(eatString(ch)); - } else if (ch === ';') { - insidePropertyValue = false; - output.push(ch); - print.newLine(); - } else if (ch === '(') { // may be a url - if (lookBack("url")) { - output.push(ch); - eatWhitespace(); - if (next()) { - if (ch !== ')' && ch !== '"' && ch !== '\'') { - output.push(eatString(')')); - } else { - pos--; - } - } - } else { - parenLevel++; - print.preserveSingleSpace(); - output.push(ch); - eatWhitespace(); - } - } else if (ch === ')') { - output.push(ch); - parenLevel--; - } else if (ch === ',') { - output.push(ch); - eatWhitespace(); - if (selectorSeparatorNewline && !insidePropertyValue && parenLevel < 1) { - print.newLine(); - } else { - print.singleSpace(); - } - } else if (ch === ']') { - output.push(ch); - } else if (ch === '[') { - print.preserveSingleSpace(); - output.push(ch); - } else if (ch === '=') { // no whitespace before or after - eatWhitespace() - ch = '='; - output.push(ch); - } else { - print.preserveSingleSpace(); - output.push(ch); - } - } - - - var sweetCode = ''; - if (basebaseIndentString) { - sweetCode += basebaseIndentString; - } - - sweetCode += output.join('').replace(/[\r\n\t ]+$/, ''); - - // establish end_with_newline - if (end_with_newline) { - sweetCode += '\n'; - } - - if (eol != '\n') { - sweetCode = sweetCode.replace(/[\n]/g, eol); - } - - return sweetCode; - } - - // https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule - css_beautify.NESTED_AT_RULE = { - "@page": true, - "@font-face": true, - "@keyframes": true, - // also in CONDITIONAL_GROUP_RULE below - "@media": true, - "@supports": true, - "@document": true - }; - css_beautify.CONDITIONAL_GROUP_RULE = { - "@media": true, - "@supports": true, - "@document": true - }; - - /*global define */ - if (typeof define === "function" && define.amd) { - // Add support for AMD ( https://github.com/amdjs/amdjs-api/wiki/AMD#defineamd-property- ) - define([], function() { - return { - css_beautify: css_beautify - }; - }); - } else if (typeof exports !== "undefined") { - // Add support for CommonJS. Just put this file somewhere on your require.paths - // and you will be able to `var html_beautify = require("beautify").html_beautify`. - exports.css_beautify = css_beautify; - } else if (typeof window !== "undefined") { - // If we're running a web page and don't have either of the above, add our one global - window.css_beautify = css_beautify; - } else if (typeof global !== "undefined") { - // If we don't even have window, try global. - global.css_beautify = css_beautify; - } - -}()); diff --git a/web/dep/beautify/beautify-html.js b/web/dep/beautify/beautify-html.js deleted file mode 100644 index efc4061c..00000000 --- a/web/dep/beautify/beautify-html.js +++ /dev/null @@ -1,952 +0,0 @@ -/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */ -/* - - The MIT License (MIT) - - Copyright (c) 2007-2013 Einar Lielmanis and contributors. - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. - - - Style HTML ---------------- - - Written by Nochum Sossonko, (nsossonko@hotmail.com) - - Based on code initially developed by: Einar Lielmanis, - http://jsbeautifier.org/ - - Usage: - style_html(html_source); - - style_html(html_source, options); - - The options are: - indent_inner_html (default false) — indent and sections, - indent_size (default 4) — indentation size, - indent_char (default space) — character to indent with, - wrap_line_length (default 250) - maximum amount of characters per line (0 = disable) - brace_style (default "collapse") - "collapse" | "expand" | "end-expand" | "none" - put braces on the same line as control statements (default), or put braces on own line (Allman / ANSI style), or just put end braces on own line, or attempt to keep them where they are. - unformatted (defaults to inline tags) - list of tags, that shouldn't be reformatted - indent_scripts (default normal) - "keep"|"separate"|"normal" - preserve_newlines (default true) - whether existing line breaks before elements should be preserved - Only works before elements, not inside tags or for text. - max_preserve_newlines (default unlimited) - maximum number of line breaks to be preserved in one chunk - indent_handlebars (default false) - format and indent {{#foo}} and {{/foo}} - end_with_newline (false) - end with a newline - extra_liners (default [head,body,/html]) -List of tags that should have an extra newline before them. - - e.g. - - style_html(html_source, { - 'indent_inner_html': false, - 'indent_size': 2, - 'indent_char': ' ', - 'wrap_line_length': 78, - 'brace_style': 'expand', - 'unformatted': ['a', 'sub', 'sup', 'b', 'i', 'u'], - 'preserve_newlines': true, - 'max_preserve_newlines': 5, - 'indent_handlebars': false, - 'extra_liners': ['/html'] - }); -*/ - -(function() { - - function trim(s) { - return s.replace(/^\s+|\s+$/g, ''); - } - - function ltrim(s) { - return s.replace(/^\s+/g, ''); - } - - function rtrim(s) { - return s.replace(/\s+$/g,''); - } - - function style_html(html_source, options, js_beautify, css_beautify) { - //Wrapper function to invoke all the necessary constructors and deal with the output. - - var multi_parser, - indent_inner_html, - indent_size, - indent_character, - wrap_line_length, - brace_style, - unformatted, - preserve_newlines, - max_preserve_newlines, - indent_handlebars, - wrap_attributes, - wrap_attributes_indent_size, - end_with_newline, - extra_liners, - eol; - - options = options || {}; - - // backwards compatibility to 1.3.4 - if ((options.wrap_line_length === undefined || parseInt(options.wrap_line_length, 10) === 0) && - (options.max_char !== undefined && parseInt(options.max_char, 10) !== 0)) { - options.wrap_line_length = options.max_char; - } - - indent_inner_html = (options.indent_inner_html === undefined) ? false : options.indent_inner_html; - indent_size = (options.indent_size === undefined) ? 4 : parseInt(options.indent_size, 10); - indent_character = (options.indent_char === undefined) ? ' ' : options.indent_char; - brace_style = (options.brace_style === undefined) ? 'collapse' : options.brace_style; - wrap_line_length = parseInt(options.wrap_line_length, 10) === 0 ? 32786 : parseInt(options.wrap_line_length || 250, 10); - unformatted = options.unformatted || ['a', 'span', 'img', 'bdo', 'em', 'strong', 'dfn', 'code', 'samp', 'kbd', - 'var', 'cite', 'abbr', 'acronym', 'q', 'sub', 'sup', 'tt', 'i', 'b', 'big', 'small', 'u', 's', 'strike', - 'font', 'ins', 'del', 'pre', 'address', 'dt', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6']; - preserve_newlines = (options.preserve_newlines === undefined) ? true : options.preserve_newlines; - max_preserve_newlines = preserve_newlines ? - (isNaN(parseInt(options.max_preserve_newlines, 10)) ? 32786 : parseInt(options.max_preserve_newlines, 10)) - : 0; - indent_handlebars = (options.indent_handlebars === undefined) ? false : options.indent_handlebars; - wrap_attributes = (options.wrap_attributes === undefined) ? 'auto' : options.wrap_attributes; - wrap_attributes_indent_size = (options.wrap_attributes_indent_size === undefined) ? indent_size : parseInt(options.wrap_attributes_indent_size, 10) || indent_size; - end_with_newline = (options.end_with_newline === undefined) ? false : options.end_with_newline; - extra_liners = (typeof options.extra_liners == 'object') && options.extra_liners ? - options.extra_liners.concat() : (typeof options.extra_liners === 'string') ? - options.extra_liners.split(',') : 'head,body,/html'.split(','); - eol = options.eol ? options.eol : '\n'; - - if(options.indent_with_tabs){ - indent_character = '\t'; - indent_size = 1; - } - - eol = eol.replace(/\\r/, '\r').replace(/\\n/, '\n') - - function Parser() { - - this.pos = 0; //Parser position - this.token = ''; - this.current_mode = 'CONTENT'; //reflects the current Parser mode: TAG/CONTENT - this.tags = { //An object to hold tags, their position, and their parent-tags, initiated with default values - parent: 'parent1', - parentcount: 1, - parent1: '' - }; - this.tag_type = ''; - this.token_text = this.last_token = this.last_text = this.token_type = ''; - this.newlines = 0; - this.indent_content = indent_inner_html; - - this.Utils = { //Uilities made available to the various functions - whitespace: "\n\r\t ".split(''), - single_token: 'br,input,link,meta,source,!doctype,basefont,base,area,hr,wbr,param,img,isindex,embed'.split(','), //all the single tags for HTML - extra_liners: extra_liners, //for tags that need a line of whitespace before them - in_array: function(what, arr) { - for (var i = 0; i < arr.length; i++) { - if (what === arr[i]) { - return true; - } - } - return false; - } - }; - - // Return true if the given text is composed entirely of whitespace. - this.is_whitespace = function(text) { - for (var n = 0; n < text.length; text++) { - if (!this.Utils.in_array(text.charAt(n), this.Utils.whitespace)) { - return false; - } - } - return true; - }; - - this.traverse_whitespace = function() { - var input_char = ''; - - input_char = this.input.charAt(this.pos); - if (this.Utils.in_array(input_char, this.Utils.whitespace)) { - this.newlines = 0; - while (this.Utils.in_array(input_char, this.Utils.whitespace)) { - if (preserve_newlines && input_char === '\n' && this.newlines <= max_preserve_newlines) { - this.newlines += 1; - } - - this.pos++; - input_char = this.input.charAt(this.pos); - } - return true; - } - return false; - }; - - // Append a space to the given content (string array) or, if we are - // at the wrap_line_length, append a newline/indentation. - this.space_or_wrap = function(content) { - if (this.line_char_count >= this.wrap_line_length) { //insert a line when the wrap_line_length is reached - this.print_newline(false, content); - this.print_indentation(content); - } else { - this.line_char_count++; - content.push(' '); - } - }; - - this.get_content = function() { //function to capture regular content between tags - var input_char = '', - content = [], - space = false; //if a space is needed - - while (this.input.charAt(this.pos) !== '<') { - if (this.pos >= this.input.length) { - return content.length ? content.join('') : ['', 'TK_EOF']; - } - - if (this.traverse_whitespace()) { - this.space_or_wrap(content); - continue; - } - - if (indent_handlebars) { - // Handlebars parsing is complicated. - // {{#foo}} and {{/foo}} are formatted tags. - // {{something}} should get treated as content, except: - // {{else}} specifically behaves like {{#if}} and {{/if}} - var peek3 = this.input.substr(this.pos, 3); - if (peek3 === '{{#' || peek3 === '{{/') { - // These are tags and not content. - break; - } else if (peek3 === '{{!') { - return [this.get_tag(), 'TK_TAG_HANDLEBARS_COMMENT']; - } else if (this.input.substr(this.pos, 2) === '{{') { - if (this.get_tag(true) === '{{else}}') { - break; - } - } - } - - input_char = this.input.charAt(this.pos); - this.pos++; - this.line_char_count++; - content.push(input_char); //letter at-a-time (or string) inserted to an array - } - return content.length ? content.join('') : ''; - }; - - this.get_contents_to = function(name) { //get the full content of a script or style to pass to js_beautify - if (this.pos === this.input.length) { - return ['', 'TK_EOF']; - } - var input_char = ''; - var content = ''; - var reg_match = new RegExp('', 'igm'); - reg_match.lastIndex = this.pos; - var reg_array = reg_match.exec(this.input); - var end_script = reg_array ? reg_array.index : this.input.length; //absolute end of script - if (this.pos < end_script) { //get everything in between the script tags - content = this.input.substring(this.pos, end_script); - this.pos = end_script; - } - return content; - }; - - this.record_tag = function(tag) { //function to record a tag and its parent in this.tags Object - if (this.tags[tag + 'count']) { //check for the existence of this tag type - this.tags[tag + 'count']++; - this.tags[tag + this.tags[tag + 'count']] = this.indent_level; //and record the present indent level - } else { //otherwise initialize this tag type - this.tags[tag + 'count'] = 1; - this.tags[tag + this.tags[tag + 'count']] = this.indent_level; //and record the present indent level - } - this.tags[tag + this.tags[tag + 'count'] + 'parent'] = this.tags.parent; //set the parent (i.e. in the case of a div this.tags.div1parent) - this.tags.parent = tag + this.tags[tag + 'count']; //and make this the current parent (i.e. in the case of a div 'div1') - }; - - this.retrieve_tag = function(tag) { //function to retrieve the opening tag to the corresponding closer - if (this.tags[tag + 'count']) { //if the openener is not in the Object we ignore it - var temp_parent = this.tags.parent; //check to see if it's a closable tag. - while (temp_parent) { //till we reach '' (the initial value); - if (tag + this.tags[tag + 'count'] === temp_parent) { //if this is it use it - break; - } - temp_parent = this.tags[temp_parent + 'parent']; //otherwise keep on climbing up the DOM Tree - } - if (temp_parent) { //if we caught something - this.indent_level = this.tags[tag + this.tags[tag + 'count']]; //set the indent_level accordingly - this.tags.parent = this.tags[temp_parent + 'parent']; //and set the current parent - } - delete this.tags[tag + this.tags[tag + 'count'] + 'parent']; //delete the closed tags parent reference... - delete this.tags[tag + this.tags[tag + 'count']]; //...and the tag itself - if (this.tags[tag + 'count'] === 1) { - delete this.tags[tag + 'count']; - } else { - this.tags[tag + 'count']--; - } - } - }; - - this.indent_to_tag = function(tag) { - // Match the indentation level to the last use of this tag, but don't remove it. - if (!this.tags[tag + 'count']) { - return; - } - var temp_parent = this.tags.parent; - while (temp_parent) { - if (tag + this.tags[tag + 'count'] === temp_parent) { - break; - } - temp_parent = this.tags[temp_parent + 'parent']; - } - if (temp_parent) { - this.indent_level = this.tags[tag + this.tags[tag + 'count']]; - } - }; - - this.get_tag = function(peek) { //function to get a full tag and parse its type - var input_char = '', - content = [], - comment = '', - space = false, - first_attr = true, - tag_start, tag_end, - tag_start_char, - orig_pos = this.pos, - orig_line_char_count = this.line_char_count; - - peek = peek !== undefined ? peek : false; - - do { - if (this.pos >= this.input.length) { - if (peek) { - this.pos = orig_pos; - this.line_char_count = orig_line_char_count; - } - return content.length ? content.join('') : ['', 'TK_EOF']; - } - - input_char = this.input.charAt(this.pos); - this.pos++; - - if (this.Utils.in_array(input_char, this.Utils.whitespace)) { //don't want to insert unnecessary space - space = true; - continue; - } - - if (input_char === "'" || input_char === '"') { - input_char += this.get_unformatted(input_char); - space = true; - - } - - if (input_char === '=') { //no space before = - space = false; - } - - if (content.length && content[content.length - 1] !== '=' && input_char !== '>' && space) { - //no space after = or before > - this.space_or_wrap(content); - space = false; - if (!first_attr && wrap_attributes === 'force' && input_char !== '/') { - this.print_newline(true, content); - this.print_indentation(content); - for (var count = 0; count < wrap_attributes_indent_size; count++) { - content.push(indent_character); - } - } - for (var i = 0; i < content.length; i++) { - if (content[i] === ' ') { - first_attr = false; - break; - } - } - } - - if (indent_handlebars && tag_start_char === '<') { - // When inside an angle-bracket tag, put spaces around - // handlebars not inside of strings. - if ((input_char + this.input.charAt(this.pos)) === '{{') { - input_char += this.get_unformatted('}}'); - if (content.length && content[content.length - 1] !== ' ' && content[content.length - 1] !== '<') { - input_char = ' ' + input_char; - } - space = true; - } - } - - if (input_char === '<' && !tag_start_char) { - tag_start = this.pos - 1; - tag_start_char = '<'; - } - - if (indent_handlebars && !tag_start_char) { - if (content.length >= 2 && content[content.length - 1] === '{' && content[content.length - 2] === '{') { - if (input_char === '#' || input_char === '/' || input_char === '!') { - tag_start = this.pos - 3; - } else { - tag_start = this.pos - 2; - } - tag_start_char = '{'; - } - } - - this.line_char_count++; - content.push(input_char); //inserts character at-a-time (or string) - - if (content[1] && (content[1] === '!' || content[1] === '?' || content[1] === '%')) { //if we're in a comment, do something special - // We treat all comments as literals, even more than preformatted tags - // we just look for the appropriate close tag - content = [this.get_comment(tag_start)]; - break; - } - - if (indent_handlebars && content[1] && content[1] === '{' && content[2] && content[2] === '!') { //if we're in a comment, do something special - // We treat all comments as literals, even more than preformatted tags - // we just look for the appropriate close tag - content = [this.get_comment(tag_start)]; - break; - } - - if (indent_handlebars && tag_start_char === '{' && content.length > 2 && content[content.length - 2] === '}' && content[content.length - 1] === '}') { - break; - } - } while (input_char !== '>'); - - var tag_complete = content.join(''); - var tag_index; - var tag_offset; - - if (tag_complete.indexOf(' ') !== -1) { //if there's whitespace, thats where the tag name ends - tag_index = tag_complete.indexOf(' '); - } else if (tag_complete.charAt(0) === '{') { - tag_index = tag_complete.indexOf('}'); - } else { //otherwise go with the tag ending - tag_index = tag_complete.indexOf('>'); - } - if (tag_complete.charAt(0) === '<' || !indent_handlebars) { - tag_offset = 1; - } else { - tag_offset = tag_complete.charAt(2) === '#' ? 3 : 2; - } - var tag_check = tag_complete.substring(tag_offset, tag_index).toLowerCase(); - if (tag_complete.charAt(tag_complete.length - 2) === '/' || - this.Utils.in_array(tag_check, this.Utils.single_token)) { //if this tag name is a single tag type (either in the list or has a closing /) - if (!peek) { - this.tag_type = 'SINGLE'; - } - } else if (indent_handlebars && tag_complete.charAt(0) === '{' && tag_check === 'else') { - if (!peek) { - this.indent_to_tag('if'); - this.tag_type = 'HANDLEBARS_ELSE'; - this.indent_content = true; - this.traverse_whitespace(); - } - } else if (this.is_unformatted(tag_check, unformatted)) { // do not reformat the "unformatted" tags - comment = this.get_unformatted('', tag_complete); //...delegate to get_unformatted function - content.push(comment); - tag_end = this.pos - 1; - this.tag_type = 'SINGLE'; - } else if (tag_check === 'script' && - (tag_complete.search('type') === -1 || - (tag_complete.search('type') > -1 && - tag_complete.search(/\b(text|application)\/(x-)?(javascript|ecmascript|jscript|livescript)/) > -1))) { - if (!peek) { - this.record_tag(tag_check); - this.tag_type = 'SCRIPT'; - } - } else if (tag_check === 'style' && - (tag_complete.search('type') === -1 || - (tag_complete.search('type') > -1 && tag_complete.search('text/css') > -1))) { - if (!peek) { - this.record_tag(tag_check); - this.tag_type = 'STYLE'; - } - } else if (tag_check.charAt(0) === '!') { //peek for ', - matched = false; - - this.pos = start_pos; - input_char = this.input.charAt(this.pos); - this.pos++; - - while (this.pos <= this.input.length) { - comment += input_char; - - // only need to check for the delimiter if the last chars match - if (comment.charAt(comment.length - 1) === delimiter.charAt(delimiter.length - 1) && - comment.indexOf(delimiter) !== -1) { - break; - } - - // only need to search for custom delimiter for the first few characters - if (!matched && comment.length < 10) { - if (comment.indexOf(''; - matched = true; - } else if (comment.indexOf(''; - matched = true; - } else if (comment.indexOf(''; - matched = true; - } else if (comment.indexOf(''; - matched = true; - } else if (comment.indexOf('{{!') === 0) { // {{! handlebars comment - delimiter = '}}'; - matched = true; - } else if (comment.indexOf(''; - matched = true; - } else if (comment.indexOf('<%') === 0) { // {{! handlebars comment - delimiter = '%>'; - matched = true; - } - } - - input_char = this.input.charAt(this.pos); - this.pos++; - } - - return comment; - }; - - this.get_unformatted = function(delimiter, orig_tag) { //function to return unformatted content in its entirety - - if (orig_tag && orig_tag.toLowerCase().indexOf(delimiter) !== -1) { - return ''; - } - var input_char = ''; - var content = ''; - var min_index = 0; - var space = true; - do { - - if (this.pos >= this.input.length) { - return content; - } - - input_char = this.input.charAt(this.pos); - this.pos++; - - if (this.Utils.in_array(input_char, this.Utils.whitespace)) { - if (!space) { - this.line_char_count--; - continue; - } - if (input_char === '\n' || input_char === '\r') { - content += '\n'; - /* Don't change tab indention for unformatted blocks. If using code for html editing, this will greatly affect 
 tags if they are specified in the 'unformatted array'
-                for (var i=0; i]*>\s*$/);
-
-                // if next_tag comes back but is not an isolated tag, then
-                // let's treat the 'a' tag as having content
-                // and respect the unformatted option
-                if (!tag || this.Utils.in_array(tag, unformatted)) {
-                    return true;
-                } else {
-                    return false;
-                }
-            };
-
-            this.printer = function(js_source, indent_character, indent_size, wrap_line_length, brace_style) { //handles input/output and some other printing functions
-
-                this.input = js_source || ''; //gets the input for the Parser
-
-                // HACK: newline parsing inconsistent. This brute force normalizes the input.
-                this.input = this.input.replace(/\r\n|[\r\u2028\u2029]/g, '\n')
-
-                this.output = [];
-                this.indent_character = indent_character;
-                this.indent_string = '';
-                this.indent_size = indent_size;
-                this.brace_style = brace_style;
-                this.indent_level = 0;
-                this.wrap_line_length = wrap_line_length;
-                this.line_char_count = 0; //count to see if wrap_line_length was exceeded
-
-                for (var i = 0; i < this.indent_size; i++) {
-                    this.indent_string += this.indent_character;
-                }
-
-                this.print_newline = function(force, arr) {
-                    this.line_char_count = 0;
-                    if (!arr || !arr.length) {
-                        return;
-                    }
-                    if (force || (arr[arr.length - 1] !== '\n')) { //we might want the extra line
-                        if ((arr[arr.length - 1] !== '\n')) {
-                            arr[arr.length - 1] = rtrim(arr[arr.length - 1]);
-                        }
-                        arr.push('\n');
-                    }
-                };
-
-                this.print_indentation = function(arr) {
-                    for (var i = 0; i < this.indent_level; i++) {
-                        arr.push(this.indent_string);
-                        this.line_char_count += this.indent_string.length;
-                    }
-                };
-
-                this.print_token = function(text) {
-                    // Avoid printing initial whitespace.
-                    if (this.is_whitespace(text) && !this.output.length) {
-                        return;
-                    }
-                    if (text || text !== '') {
-                        if (this.output.length && this.output[this.output.length - 1] === '\n') {
-                            this.print_indentation(this.output);
-                            text = ltrim(text);
-                        }
-                    }
-                    this.print_token_raw(text);
-                };
-
-                this.print_token_raw = function(text) {
-                    // If we are going to print newlines, truncate trailing
-                    // whitespace, as the newlines will represent the space.
-                    if (this.newlines > 0) {
-                        text = rtrim(text);
-                    }
-
-                    if (text && text !== '') {
-                        if (text.length > 1 && text.charAt(text.length - 1) === '\n') {
-                            // unformatted tags can grab newlines as their last character
-                            this.output.push(text.slice(0, -1));
-                            this.print_newline(false, this.output);
-                        } else {
-                            this.output.push(text);
-                        }
-                    }
-
-                    for (var n = 0; n < this.newlines; n++) {
-                        this.print_newline(n > 0, this.output);
-                    }
-                    this.newlines = 0;
-                };
-
-                this.indent = function() {
-                    this.indent_level++;
-                };
-
-                this.unindent = function() {
-                    if (this.indent_level > 0) {
-                        this.indent_level--;
-                    }
-                };
-            };
-            return this;
-        }
-
-        /*_____________________--------------------_____________________*/
-
-        multi_parser = new Parser(); //wrapping functions Parser
-        multi_parser.printer(html_source, indent_character, indent_size, wrap_line_length, brace_style); //initialize starting values
-
-        while (true) {
-            var t = multi_parser.get_token();
-            multi_parser.token_text = t[0];
-            multi_parser.token_type = t[1];
-
-            if (multi_parser.token_type === 'TK_EOF') {
-                break;
-            }
-
-            switch (multi_parser.token_type) {
-                case 'TK_TAG_START':
-                    multi_parser.print_newline(false, multi_parser.output);
-                    multi_parser.print_token(multi_parser.token_text);
-                    if (multi_parser.indent_content) {
-                        multi_parser.indent();
-                        multi_parser.indent_content = false;
-                    }
-                    multi_parser.current_mode = 'CONTENT';
-                    break;
-                case 'TK_TAG_STYLE':
-                case 'TK_TAG_SCRIPT':
-                    multi_parser.print_newline(false, multi_parser.output);
-                    multi_parser.print_token(multi_parser.token_text);
-                    multi_parser.current_mode = 'CONTENT';
-                    break;
-                case 'TK_TAG_END':
-                    //Print new line only if the tag has no content and has child
-                    if (multi_parser.last_token === 'TK_CONTENT' && multi_parser.last_text === '') {
-                        var tag_name = multi_parser.token_text.match(/\w+/)[0];
-                        var tag_extracted_from_last_output = null;
-                        if (multi_parser.output.length) {
-                            tag_extracted_from_last_output = multi_parser.output[multi_parser.output.length - 1].match(/(?:<|{{#)\s*(\w+)/);
-                        }
-                        if (tag_extracted_from_last_output === null ||
-                            (tag_extracted_from_last_output[1] !== tag_name && !multi_parser.Utils.in_array(tag_extracted_from_last_output[1], unformatted))) {
-                            multi_parser.print_newline(false, multi_parser.output);
-                        }
-                    }
-                    multi_parser.print_token(multi_parser.token_text);
-                    multi_parser.current_mode = 'CONTENT';
-                    break;
-                case 'TK_TAG_SINGLE':
-                    // Don't add a newline before elements that should remain unformatted.
-                    var tag_check = multi_parser.token_text.match(/^\s*<([a-z-]+)/i);
-                    if (!tag_check || !multi_parser.Utils.in_array(tag_check[1], unformatted)) {
-                        multi_parser.print_newline(false, multi_parser.output);
-                    }
-                    multi_parser.print_token(multi_parser.token_text);
-                    multi_parser.current_mode = 'CONTENT';
-                    break;
-                case 'TK_TAG_HANDLEBARS_ELSE':
-                    multi_parser.print_token(multi_parser.token_text);
-                    if (multi_parser.indent_content) {
-                        multi_parser.indent();
-                        multi_parser.indent_content = false;
-                    }
-                    multi_parser.current_mode = 'CONTENT';
-                    break;
-                case 'TK_TAG_HANDLEBARS_COMMENT':
-                    multi_parser.print_token(multi_parser.token_text);
-                    multi_parser.current_mode = 'TAG';
-                    break;
-                case 'TK_CONTENT':
-                    multi_parser.print_token(multi_parser.token_text);
-                    multi_parser.current_mode = 'TAG';
-                    break;
-                case 'TK_STYLE':
-                case 'TK_SCRIPT':
-                    if (multi_parser.token_text !== '') {
-                        multi_parser.print_newline(false, multi_parser.output);
-                        var text = multi_parser.token_text,
-                            _beautifier,
-                            script_indent_level = 1;
-                        if (multi_parser.token_type === 'TK_SCRIPT') {
-                            _beautifier = typeof js_beautify === 'function' && js_beautify;
-                        } else if (multi_parser.token_type === 'TK_STYLE') {
-                            _beautifier = typeof css_beautify === 'function' && css_beautify;
-                        }
-
-                        if (options.indent_scripts === "keep") {
-                            script_indent_level = 0;
-                        } else if (options.indent_scripts === "separate") {
-                            script_indent_level = -multi_parser.indent_level;
-                        }
-
-                        var indentation = multi_parser.get_full_indent(script_indent_level);
-                        if (_beautifier) {
-
-                            // call the Beautifier if avaliable
-                            var Child_options = function() {
-                                this.eol = '\n';
-                            };
-                            Child_options.prototype = options;
-                            var child_options = new Child_options();
-                            text = _beautifier(text.replace(/^\s*/, indentation), child_options);
-                        } else {
-                            // simply indent the string otherwise
-                            var white = text.match(/^\s*/)[0];
-                            var _level = white.match(/[^\n\r]*$/)[0].split(multi_parser.indent_string).length - 1;
-                            var reindent = multi_parser.get_full_indent(script_indent_level - _level);
-                            text = text.replace(/^\s*/, indentation)
-                                .replace(/\r\n|\r|\n/g, '\n' + reindent)
-                                .replace(/\s+$/, '');
-                        }
-                        if (text) {
-                            multi_parser.print_token_raw(text);
-                            multi_parser.print_newline(true, multi_parser.output);
-                        }
-                    }
-                    multi_parser.current_mode = 'TAG';
-                    break;
-                default:
-                    // We should not be getting here but we don't want to drop input on the floor
-                    // Just output the text and move on
-                    if (multi_parser.token_text !== '') {
-                        multi_parser.print_token(multi_parser.token_text);
-                    }
-                    break;
-            }
-            multi_parser.last_token = multi_parser.token_type;
-            multi_parser.last_text = multi_parser.token_text;
-        }
-        var sweet_code = multi_parser.output.join('').replace(/[\r\n\t ]+$/, '');
-
-        // establish end_with_newline
-        if (end_with_newline) {
-            sweet_code += '\n';
-        }
-
-        if (eol != '\n') {
-            sweet_code = sweet_code.replace(/[\n]/g, eol);
-        }
-
-        return sweet_code;
-    }
-
-    if (typeof define === "function" && define.amd) {
-        // Add support for AMD ( https://github.com/amdjs/amdjs-api/wiki/AMD#defineamd-property- )
-        define(["require", "./beautify", "./beautify-css"], function(requireamd) {
-            var js_beautify =  requireamd("./beautify");
-            var css_beautify =  requireamd("./beautify-css");
-
-            return {
-              html_beautify: function(html_source, options) {
-                return style_html(html_source, options, js_beautify.js_beautify, css_beautify.css_beautify);
-              }
-            };
-        });
-    } else if (typeof exports !== "undefined") {
-        // Add support for CommonJS. Just put this file somewhere on your require.paths
-        // and you will be able to `var html_beautify = require("beautify").html_beautify`.
-        var js_beautify = require('./beautify.js');
-        var css_beautify = require('./beautify-css.js');
-
-        exports.html_beautify = function(html_source, options) {
-            return style_html(html_source, options, js_beautify.js_beautify, css_beautify.css_beautify);
-        };
-    } else if (typeof window !== "undefined") {
-        // If we're running a web page and don't have either of the above, add our one global
-        window.html_beautify = function(html_source, options) {
-            return style_html(html_source, options, window.js_beautify, window.css_beautify);
-        };
-    } else if (typeof global !== "undefined") {
-        // If we don't even have window, try global.
-        global.html_beautify = function(html_source, options) {
-            return style_html(html_source, options, global.js_beautify, global.css_beautify);
-        };
-    }
-
-}());
diff --git a/web/dep/beautify/beautify.js b/web/dep/beautify/beautify.js
deleted file mode 100644
index 030a2f7a..00000000
--- a/web/dep/beautify/beautify.js
+++ /dev/null
@@ -1,2085 +0,0 @@
-/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */
-/*
-
-  The MIT License (MIT)
-
-  Copyright (c) 2007-2013 Einar Lielmanis and contributors.
-
-  Permission is hereby granted, free of charge, to any person
-  obtaining a copy of this software and associated documentation files
-  (the "Software"), to deal in the Software without restriction,
-  including without limitation the rights to use, copy, modify, merge,
-  publish, distribute, sublicense, and/or sell copies of the Software,
-  and to permit persons to whom the Software is furnished to do so,
-  subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be
-  included in all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-  SOFTWARE.
-
- JS Beautifier
----------------
-
-
-  Written by Einar Lielmanis, 
-      http://jsbeautifier.org/
-
-  Originally converted to javascript by Vital, 
-  "End braces on own line" added by Chris J. Shull, 
-  Parsing improvements for brace-less statements by Liam Newman 
-
-
-  Usage:
-    js_beautify(js_source_text);
-    js_beautify(js_source_text, options);
-
-  The options are:
-    indent_size (default 4)          - indentation size,
-    indent_char (default space)      - character to indent with,
-    preserve_newlines (default true) - whether existing line breaks should be preserved,
-    max_preserve_newlines (default unlimited) - maximum number of line breaks to be preserved in one chunk,
-
-    jslint_happy (default false) - if true, then jslint-stricter mode is enforced.
-
-            jslint_happy        !jslint_happy
-            ---------------------------------
-            function ()         function()
-
-            switch () {         switch() {
-            case 1:               case 1:
-              break;                break;
-            }                   }
-
-    space_after_anon_function (default false) - should the space before an anonymous function's parens be added, "function()" vs "function ()",
-          NOTE: This option is overriden by jslint_happy (i.e. if jslint_happy is true, space_after_anon_function is true by design)
-
-    brace_style (default "collapse") - "collapse" | "expand" | "end-expand" | "none"
-            put braces on the same line as control statements (default), or put braces on own line (Allman / ANSI style), or just put end braces on own line, or attempt to keep them where they are.
-
-    space_before_conditional (default true) - should the space before conditional statement be added, "if(true)" vs "if (true)",
-
-    unescape_strings (default false) - should printable characters in strings encoded in \xNN notation be unescaped, "example" vs "\x65\x78\x61\x6d\x70\x6c\x65"
-
-    wrap_line_length (default unlimited) - lines should wrap at next opportunity after this number of characters.
-          NOTE: This is not a hard limit. Lines will continue until a point where a newline would
-                be preserved if it were present.
-
-    end_with_newline (default false)  - end output with a newline
-
-
-    e.g
-
-    js_beautify(js_source_text, {
-      'indent_size': 1,
-      'indent_char': '\t'
-    });
-
-*/
-
-(function() {
-
-    var acorn = {};
-    (function (exports) {
-      // This section of code is taken from acorn.
-      //
-      // Acorn was written by Marijn Haverbeke and released under an MIT
-      // license. The Unicode regexps (for identifiers and whitespace) were
-      // taken from [Esprima](http://esprima.org) by Ariya Hidayat.
-      //
-      // Git repositories for Acorn are available at
-      //
-      //     http://marijnhaverbeke.nl/git/acorn
-      //     https://github.com/marijnh/acorn.git
-
-      // ## Character categories
-
-      // Big ugly regular expressions that match characters in the
-      // whitespace, identifier, and identifier-start categories. These
-      // are only applied when a character is found to actually have a
-      // code point above 128.
-
-      var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
-      var nonASCIIidentifierStartChars = "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc";
-      var nonASCIIidentifierChars = "\u0300-\u036f\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u0620-\u0649\u0672-\u06d3\u06e7-\u06e8\u06fb-\u06fc\u0730-\u074a\u0800-\u0814\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0840-\u0857\u08e4-\u08fe\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09d7\u09df-\u09e0\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5f-\u0b60\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2-\u0ce3\u0ce6-\u0cef\u0d02\u0d03\u0d46-\u0d48\u0d57\u0d62-\u0d63\u0d66-\u0d6f\u0d82\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e34-\u0e3a\u0e40-\u0e45\u0e50-\u0e59\u0eb4-\u0eb9\u0ec8-\u0ecd\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f41-\u0f47\u0f71-\u0f84\u0f86-\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1029\u1040-\u1049\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u170e-\u1710\u1720-\u1730\u1740-\u1750\u1772\u1773\u1780-\u17b2\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1920-\u192b\u1930-\u193b\u1951-\u196d\u19b0-\u19c0\u19c8-\u19c9\u19d0-\u19d9\u1a00-\u1a15\u1a20-\u1a53\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1b46-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1bb0-\u1bb9\u1be6-\u1bf3\u1c00-\u1c22\u1c40-\u1c49\u1c5b-\u1c7d\u1cd0-\u1cd2\u1d00-\u1dbe\u1e01-\u1f15\u200c\u200d\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2d81-\u2d96\u2de0-\u2dff\u3021-\u3028\u3099\u309a\ua640-\ua66d\ua674-\ua67d\ua69f\ua6f0-\ua6f1\ua7f8-\ua800\ua806\ua80b\ua823-\ua827\ua880-\ua881\ua8b4-\ua8c4\ua8d0-\ua8d9\ua8f3-\ua8f7\ua900-\ua909\ua926-\ua92d\ua930-\ua945\ua980-\ua983\ua9b3-\ua9c0\uaa00-\uaa27\uaa40-\uaa41\uaa4c-\uaa4d\uaa50-\uaa59\uaa7b\uaae0-\uaae9\uaaf2-\uaaf3\uabc0-\uabe1\uabec\uabed\uabf0-\uabf9\ufb20-\ufb28\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f";
-      var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
-      var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
-
-      // Whether a single character denotes a newline.
-
-      var newline = exports.newline = /[\n\r\u2028\u2029]/;
-
-      // Matches a whole line break (where CRLF is considered a single
-      // line break). Used to count lines.
-
-      var lineBreak = exports.lineBreak = /\r\n|[\n\r\u2028\u2029]/g;
-
-      // Test whether a given character code starts an identifier.
-
-      var isIdentifierStart = exports.isIdentifierStart = function(code) {
-        if (code < 65) return code === 36;
-        if (code < 91) return true;
-        if (code < 97) return code === 95;
-        if (code < 123)return true;
-        return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
-      };
-
-      // Test whether a given character is part of an identifier.
-
-      var isIdentifierChar = exports.isIdentifierChar = function(code) {
-        if (code < 48) return code === 36;
-        if (code < 58) return true;
-        if (code < 65) return false;
-        if (code < 91) return true;
-        if (code < 97) return code === 95;
-        if (code < 123)return true;
-        return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
-      };
-    })(acorn);
-
-    function in_array(what, arr) {
-        for (var i = 0; i < arr.length; i += 1) {
-            if (arr[i] === what) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    function trim(s) {
-        return s.replace(/^\s+|\s+$/g, '');
-    }
-
-    function ltrim(s) {
-        return s.replace(/^\s+/g, '');
-    }
-
-    function rtrim(s) {
-        return s.replace(/\s+$/g, '');
-    }
-
-    function js_beautify(js_source_text, options) {
-        "use strict";
-        var beautifier = new Beautifier(js_source_text, options);
-        return beautifier.beautify();
-    }
-
-    var MODE = {
-            BlockStatement: 'BlockStatement', // 'BLOCK'
-            Statement: 'Statement', // 'STATEMENT'
-            ObjectLiteral: 'ObjectLiteral', // 'OBJECT',
-            ArrayLiteral: 'ArrayLiteral', //'[EXPRESSION]',
-            ForInitializer: 'ForInitializer', //'(FOR-EXPRESSION)',
-            Conditional: 'Conditional', //'(COND-EXPRESSION)',
-            Expression: 'Expression' //'(EXPRESSION)'
-        };
-
-    function Beautifier(js_source_text, options) {
-        "use strict";
-        var output
-        var tokens = [], token_pos;
-        var Tokenizer;
-        var current_token;
-        var last_type, last_last_text, indent_string;
-        var flags, previous_flags, flag_store;
-        var prefix;
-
-        var handlers, opt;
-        var baseIndentString = '';
-
-        handlers = {
-            'TK_START_EXPR': handle_start_expr,
-            'TK_END_EXPR': handle_end_expr,
-            'TK_START_BLOCK': handle_start_block,
-            'TK_END_BLOCK': handle_end_block,
-            'TK_WORD': handle_word,
-            'TK_RESERVED': handle_word,
-            'TK_SEMICOLON': handle_semicolon,
-            'TK_STRING': handle_string,
-            'TK_EQUALS': handle_equals,
-            'TK_OPERATOR': handle_operator,
-            'TK_COMMA': handle_comma,
-            'TK_BLOCK_COMMENT': handle_block_comment,
-            'TK_COMMENT': handle_comment,
-            'TK_DOT': handle_dot,
-            'TK_UNKNOWN': handle_unknown,
-            'TK_EOF': handle_eof
-        };
-
-        function create_flags(flags_base, mode) {
-            var next_indent_level = 0;
-            if (flags_base) {
-                next_indent_level = flags_base.indentation_level;
-                if (!output.just_added_newline() &&
-                    flags_base.line_indent_level > next_indent_level) {
-                    next_indent_level = flags_base.line_indent_level;
-                }
-            }
-
-            var next_flags = {
-                mode: mode,
-                parent: flags_base,
-                last_text: flags_base ? flags_base.last_text : '', // last token text
-                last_word: flags_base ? flags_base.last_word : '', // last 'TK_WORD' passed
-                declaration_statement: false,
-                declaration_assignment: false,
-                multiline_frame: false,
-                if_block: false,
-                else_block: false,
-                do_block: false,
-                do_while: false,
-                in_case_statement: false, // switch(..){ INSIDE HERE }
-                in_case: false, // we're on the exact line with "case 0:"
-                case_body: false, // the indented case-action block
-                indentation_level: next_indent_level,
-                line_indent_level: flags_base ? flags_base.line_indent_level : next_indent_level,
-                start_line_index: output.get_line_number(),
-                ternary_depth: 0
-            };
-            return next_flags;
-        }
-
-        // Some interpreters have unexpected results with foo = baz || bar;
-        options = options ? options : {};
-        opt = {};
-
-        // compatibility
-        if (options.braces_on_own_line !== undefined) { //graceful handling of deprecated option
-            opt.brace_style = options.braces_on_own_line ? "expand" : "collapse";
-        }
-        opt.brace_style = options.brace_style ? options.brace_style : (opt.brace_style ? opt.brace_style : "collapse");
-
-        // graceful handling of deprecated option
-        if (opt.brace_style === "expand-strict") {
-            opt.brace_style = "expand";
-        }
-
-
-        opt.indent_size = options.indent_size ? parseInt(options.indent_size, 10) : 4;
-        opt.indent_char = options.indent_char ? options.indent_char : ' ';
-        opt.eol = options.eol ? options.eol : '\n';
-        opt.preserve_newlines = (options.preserve_newlines === undefined) ? true : options.preserve_newlines;
-        opt.break_chained_methods = (options.break_chained_methods === undefined) ? false : options.break_chained_methods;
-        opt.max_preserve_newlines = (options.max_preserve_newlines === undefined) ? 0 : parseInt(options.max_preserve_newlines, 10);
-        opt.space_in_paren = (options.space_in_paren === undefined) ? false : options.space_in_paren;
-        opt.space_in_empty_paren = (options.space_in_empty_paren === undefined) ? false : options.space_in_empty_paren;
-        opt.jslint_happy = (options.jslint_happy === undefined) ? false : options.jslint_happy;
-        opt.space_after_anon_function = (options.space_after_anon_function === undefined) ? false : options.space_after_anon_function;
-        opt.keep_array_indentation = (options.keep_array_indentation === undefined) ? false : options.keep_array_indentation;
-        opt.space_before_conditional = (options.space_before_conditional === undefined) ? true : options.space_before_conditional;
-        opt.unescape_strings = (options.unescape_strings === undefined) ? false : options.unescape_strings;
-        opt.wrap_line_length = (options.wrap_line_length === undefined) ? 0 : parseInt(options.wrap_line_length, 10);
-        opt.e4x = (options.e4x === undefined) ? false : options.e4x;
-        opt.end_with_newline = (options.end_with_newline === undefined) ? false : options.end_with_newline;
-        opt.comma_first = (options.comma_first === undefined) ? false : options.comma_first;
-
-        // For testing of beautify ignore:start directive
-        opt.test_output_raw = (options.test_output_raw === undefined) ? false : options.test_output_raw;
-
-        // force opt.space_after_anon_function to true if opt.jslint_happy
-        if(opt.jslint_happy) {
-            opt.space_after_anon_function = true;
-        }
-
-        if(options.indent_with_tabs){
-            opt.indent_char = '\t';
-            opt.indent_size = 1;
-        }
-
-        opt.eol = opt.eol.replace(/\\r/, '\r').replace(/\\n/, '\n')
-
-        //----------------------------------
-        indent_string = '';
-        while (opt.indent_size > 0) {
-            indent_string += opt.indent_char;
-            opt.indent_size -= 1;
-        }
-
-        var preindent_index = 0;
-        if(js_source_text && js_source_text.length) {
-            while ( (js_source_text.charAt(preindent_index) === ' ' ||
-                    js_source_text.charAt(preindent_index) === '\t')) {
-                baseIndentString += js_source_text.charAt(preindent_index);
-                preindent_index += 1;
-            }
-            js_source_text = js_source_text.substring(preindent_index);
-        }
-
-        last_type = 'TK_START_BLOCK'; // last token type
-        last_last_text = ''; // pre-last token text
-        output = new Output(indent_string, baseIndentString);
-
-        // If testing the ignore directive, start with output disable set to true
-        output.raw = opt.test_output_raw;
-
-
-        // Stack of parsing/formatting states, including MODE.
-        // We tokenize, parse, and output in an almost purely a forward-only stream of token input
-        // and formatted output.  This makes the beautifier less accurate than full parsers
-        // but also far more tolerant of syntax errors.
-        //
-        // For example, the default mode is MODE.BlockStatement. If we see a '{' we push a new frame of type
-        // MODE.BlockStatement on the the stack, even though it could be object literal.  If we later
-        // encounter a ":", we'll switch to to MODE.ObjectLiteral.  If we then see a ";",
-        // most full parsers would die, but the beautifier gracefully falls back to
-        // MODE.BlockStatement and continues on.
-        flag_store = [];
-        set_mode(MODE.BlockStatement);
-
-        this.beautify = function() {
-
-            /*jshint onevar:true */
-            var local_token, sweet_code;
-            Tokenizer = new tokenizer(js_source_text, opt, indent_string);
-            tokens = Tokenizer.tokenize();
-            token_pos = 0;
-
-            while (local_token = get_token()) {
-                for(var i = 0; i < local_token.comments_before.length; i++) {
-                    // The cleanest handling of inline comments is to treat them as though they aren't there.
-                    // Just continue formatting and the behavior should be logical.
-                    // Also ignore unknown tokens.  Again, this should result in better behavior.
-                    handle_token(local_token.comments_before[i]);
-                }
-                handle_token(local_token);
-
-                last_last_text = flags.last_text;
-                last_type = local_token.type;
-                flags.last_text = local_token.text;
-
-                token_pos += 1;
-            }
-
-            sweet_code = output.get_code();
-            if (opt.end_with_newline) {
-                sweet_code += '\n';
-            }
-
-            if (opt.eol != '\n') {
-                sweet_code = sweet_code.replace(/[\n]/g, opt.eol);
-            }
-
-            return sweet_code;
-        };
-
-        function handle_token(local_token) {
-            var newlines = local_token.newlines;
-            var keep_whitespace = opt.keep_array_indentation && is_array(flags.mode);
-
-            if (keep_whitespace) {
-                for (i = 0; i < newlines; i += 1) {
-                    print_newline(i > 0);
-                }
-            } else {
-                if (opt.max_preserve_newlines && newlines > opt.max_preserve_newlines) {
-                    newlines = opt.max_preserve_newlines;
-                }
-
-                if (opt.preserve_newlines) {
-                    if (local_token.newlines > 1) {
-                        print_newline();
-                        for (var i = 1; i < newlines; i += 1) {
-                            print_newline(true);
-                        }
-                    }
-                }
-            }
-
-            current_token = local_token;
-            handlers[current_token.type]();
-        }
-
-        // we could use just string.split, but
-        // IE doesn't like returning empty strings
-        function split_newlines(s) {
-            //return s.split(/\x0d\x0a|\x0a/);
-
-            s = s.replace(/\x0d/g, '');
-            var out = [],
-                idx = s.indexOf("\n");
-            while (idx !== -1) {
-                out.push(s.substring(0, idx));
-                s = s.substring(idx + 1);
-                idx = s.indexOf("\n");
-            }
-            if (s.length) {
-                out.push(s);
-            }
-            return out;
-        }
-
-        function allow_wrap_or_preserved_newline(force_linewrap) {
-            force_linewrap = (force_linewrap === undefined) ? false : force_linewrap;
-
-            // Never wrap the first token on a line
-            if (output.just_added_newline()) {
-                return
-            }
-
-            if ((opt.preserve_newlines && current_token.wanted_newline) || force_linewrap) {
-                print_newline(false, true);
-            } else if (opt.wrap_line_length) {
-                var proposed_line_length = output.current_line.get_character_count() + current_token.text.length +
-                    (output.space_before_token ? 1 : 0);
-                if (proposed_line_length >= opt.wrap_line_length) {
-                    print_newline(false, true);
-                }
-            }
-        }
-
-        function print_newline(force_newline, preserve_statement_flags) {
-            if (!preserve_statement_flags) {
-                if (flags.last_text !== ';' && flags.last_text !== ',' && flags.last_text !== '=' && last_type !== 'TK_OPERATOR') {
-                    while (flags.mode === MODE.Statement && !flags.if_block && !flags.do_block) {
-                        restore_mode();
-                    }
-                }
-            }
-
-            if (output.add_new_line(force_newline)) {
-                flags.multiline_frame = true;
-            }
-        }
-
-        function print_token_line_indentation() {
-            if (output.just_added_newline()) {
-                if (opt.keep_array_indentation && is_array(flags.mode) && current_token.wanted_newline) {
-                    output.current_line.push(current_token.whitespace_before);
-                    output.space_before_token = false;
-                } else if (output.set_indent(flags.indentation_level)) {
-                    flags.line_indent_level = flags.indentation_level;
-                }
-            }
-        }
-
-        function print_token(printable_token) {
-            if (output.raw) {
-                output.add_raw_token(current_token)
-                return;
-            }
-
-            if (opt.comma_first && last_type === 'TK_COMMA'
-                && output.just_added_newline()) {
-                if(output.previous_line.last() === ',') {
-                    output.previous_line.pop();
-                    print_token_line_indentation();
-                    output.add_token(',');
-                    output.space_before_token = true;
-                }
-            }
-
-            printable_token = printable_token || current_token.text;
-            print_token_line_indentation();
-            output.add_token(printable_token);
-        }
-
-        function indent() {
-            flags.indentation_level += 1;
-        }
-
-        function deindent() {
-            if (flags.indentation_level > 0 &&
-                ((!flags.parent) || flags.indentation_level > flags.parent.indentation_level))
-                flags.indentation_level -= 1;
-        }
-
-        function set_mode(mode) {
-            if (flags) {
-                flag_store.push(flags);
-                previous_flags = flags;
-            } else {
-                previous_flags = create_flags(null, mode);
-            }
-
-            flags = create_flags(previous_flags, mode);
-        }
-
-        function is_array(mode) {
-            return mode === MODE.ArrayLiteral;
-        }
-
-        function is_expression(mode) {
-            return in_array(mode, [MODE.Expression, MODE.ForInitializer, MODE.Conditional]);
-        }
-
-        function restore_mode() {
-            if (flag_store.length > 0) {
-                previous_flags = flags;
-                flags = flag_store.pop();
-                if (previous_flags.mode === MODE.Statement) {
-                    output.remove_redundant_indentation(previous_flags);
-                }
-            }
-        }
-
-        function start_of_object_property() {
-            return flags.parent.mode === MODE.ObjectLiteral && flags.mode === MODE.Statement && (
-                (flags.last_text === ':' && flags.ternary_depth === 0) || (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set'])));
-        }
-
-        function start_of_statement() {
-            if (
-                    (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && current_token.type === 'TK_WORD') ||
-                    (last_type === 'TK_RESERVED' && flags.last_text === 'do') ||
-                    (last_type === 'TK_RESERVED' && flags.last_text === 'return' && !current_token.wanted_newline) ||
-                    (last_type === 'TK_RESERVED' && flags.last_text === 'else' && !(current_token.type === 'TK_RESERVED' && current_token.text === 'if')) ||
-                    (last_type === 'TK_END_EXPR' && (previous_flags.mode === MODE.ForInitializer || previous_flags.mode === MODE.Conditional)) ||
-                    (last_type === 'TK_WORD' && flags.mode === MODE.BlockStatement
-                        && !flags.in_case
-                        && !(current_token.text === '--' || current_token.text === '++')
-                        && last_last_text !== 'function'
-                        && current_token.type !== 'TK_WORD' && current_token.type !== 'TK_RESERVED') ||
-                    (flags.mode === MODE.ObjectLiteral && (
-                        (flags.last_text === ':' && flags.ternary_depth === 0) || (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set']))))
-                ) {
-
-                set_mode(MODE.Statement);
-                indent();
-
-                if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && current_token.type === 'TK_WORD') {
-                    flags.declaration_statement = true;
-                }
-
-                // Issue #276:
-                // If starting a new statement with [if, for, while, do], push to a new line.
-                // if (a) if (b) if(c) d(); else e(); else f();
-                if (!start_of_object_property()) {
-                    allow_wrap_or_preserved_newline(
-                        current_token.type === 'TK_RESERVED' && in_array(current_token.text, ['do', 'for', 'if', 'while']));
-                }
-
-                return true;
-            }
-            return false;
-        }
-
-        function all_lines_start_with(lines, c) {
-            for (var i = 0; i < lines.length; i++) {
-                var line = trim(lines[i]);
-                if (line.charAt(0) !== c) {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        function each_line_matches_indent(lines, indent) {
-            var i = 0,
-                len = lines.length,
-                line;
-            for (; i < len; i++) {
-                line = lines[i];
-                // allow empty lines to pass through
-                if (line && line.indexOf(indent) !== 0) {
-                    return false;
-                }
-            }
-            return true;
-        }
-
-        function is_special_word(word) {
-            return in_array(word, ['case', 'return', 'do', 'if', 'throw', 'else']);
-        }
-
-        function get_token(offset) {
-            var index = token_pos + (offset || 0);
-            return (index < 0 || index >= tokens.length) ? null : tokens[index];
-        }
-
-        function handle_start_expr() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-            }
-
-            var next_mode = MODE.Expression;
-            if (current_token.text === '[') {
-
-                if (last_type === 'TK_WORD' || flags.last_text === ')') {
-                    // this is array index specifier, break immediately
-                    // a[x], fn()[x]
-                    if (last_type === 'TK_RESERVED' && in_array(flags.last_text, Tokenizer.line_starters)) {
-                        output.space_before_token = true;
-                    }
-                    set_mode(next_mode);
-                    print_token();
-                    indent();
-                    if (opt.space_in_paren) {
-                        output.space_before_token = true;
-                    }
-                    return;
-                }
-
-                next_mode = MODE.ArrayLiteral;
-                if (is_array(flags.mode)) {
-                    if (flags.last_text === '[' ||
-                        (flags.last_text === ',' && (last_last_text === ']' || last_last_text === '}'))) {
-                        // ], [ goes to new line
-                        // }, [ goes to new line
-                        if (!opt.keep_array_indentation) {
-                            print_newline();
-                        }
-                    }
-                }
-
-            } else {
-                if (last_type === 'TK_RESERVED' && flags.last_text === 'for') {
-                    next_mode = MODE.ForInitializer;
-                } else if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['if', 'while'])) {
-                    next_mode = MODE.Conditional;
-                } else {
-                    // next_mode = MODE.Expression;
-                }
-            }
-
-            if (flags.last_text === ';' || last_type === 'TK_START_BLOCK') {
-                print_newline();
-            } else if (last_type === 'TK_END_EXPR' || last_type === 'TK_START_EXPR' || last_type === 'TK_END_BLOCK' || flags.last_text === '.') {
-                // TODO: Consider whether forcing this is required.  Review failing tests when removed.
-                allow_wrap_or_preserved_newline(current_token.wanted_newline);
-                // do nothing on (( and )( and ][ and ]( and .(
-            } else if (!(last_type === 'TK_RESERVED' && current_token.text === '(') && last_type !== 'TK_WORD' && last_type !== 'TK_OPERATOR') {
-                output.space_before_token = true;
-            } else if ((last_type === 'TK_RESERVED' && (flags.last_word === 'function' || flags.last_word === 'typeof')) ||
-                (flags.last_text === '*' && last_last_text === 'function')) {
-                // function() vs function ()
-                if (opt.space_after_anon_function) {
-                    output.space_before_token = true;
-                }
-            } else if (last_type === 'TK_RESERVED' && (in_array(flags.last_text, Tokenizer.line_starters) || flags.last_text === 'catch')) {
-                if (opt.space_before_conditional) {
-                    output.space_before_token = true;
-                }
-            }
-
-            // Should be a space between await and an IIFE
-            if(current_token.text === '(' && last_type === 'TK_RESERVED' && flags.last_word === 'await'){
-                output.space_before_token = true;
-            }
-
-            // Support of this kind of newline preservation.
-            // a = (b &&
-            //     (c || d));
-            if (current_token.text === '(') {
-                if (last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
-                    if (!start_of_object_property()) {
-                        allow_wrap_or_preserved_newline();
-                    }
-                }
-            }
-
-            set_mode(next_mode);
-            print_token();
-            if (opt.space_in_paren) {
-                output.space_before_token = true;
-            }
-
-            // In all cases, if we newline while inside an expression it should be indented.
-            indent();
-        }
-
-        function handle_end_expr() {
-            // statements inside expressions are not valid syntax, but...
-            // statements must all be closed when their container closes
-            while (flags.mode === MODE.Statement) {
-                restore_mode();
-            }
-
-            if (flags.multiline_frame) {
-                allow_wrap_or_preserved_newline(current_token.text === ']' && is_array(flags.mode) && !opt.keep_array_indentation);
-            }
-
-            if (opt.space_in_paren) {
-                if (last_type === 'TK_START_EXPR' && ! opt.space_in_empty_paren) {
-                    // () [] no inner space in empty parens like these, ever, ref #320
-                    output.trim();
-                    output.space_before_token = false;
-                } else {
-                    output.space_before_token = true;
-                }
-            }
-            if (current_token.text === ']' && opt.keep_array_indentation) {
-                print_token();
-                restore_mode();
-            } else {
-                restore_mode();
-                print_token();
-            }
-            output.remove_redundant_indentation(previous_flags);
-
-            // do {} while () // no statement required after
-            if (flags.do_while && previous_flags.mode === MODE.Conditional) {
-                previous_flags.mode = MODE.Expression;
-                flags.do_block = false;
-                flags.do_while = false;
-
-            }
-        }
-
-        function handle_start_block() {
-            // Check if this is should be treated as a ObjectLiteral
-            var next_token = get_token(1)
-            var second_token = get_token(2)
-            if (second_token && (
-                    (second_token.text === ':' && in_array(next_token.type, ['TK_STRING', 'TK_WORD', 'TK_RESERVED']))
-                    || (in_array(next_token.text, ['get', 'set']) && in_array(second_token.type, ['TK_WORD', 'TK_RESERVED']))
-                )) {
-                // We don't support TypeScript,but we didn't break it for a very long time.
-                // We'll try to keep not breaking it.
-                if (!in_array(last_last_text, ['class','interface'])) {
-                    set_mode(MODE.ObjectLiteral);
-                } else {
-                    set_mode(MODE.BlockStatement);
-                }
-            } else {
-                set_mode(MODE.BlockStatement);
-            }
-
-            var empty_braces = !next_token.comments_before.length &&  next_token.text === '}';
-            var empty_anonymous_function = empty_braces && flags.last_word === 'function' &&
-                last_type === 'TK_END_EXPR';
-
-            if (opt.brace_style === "expand" ||
-                (opt.brace_style === "none" && current_token.wanted_newline)) {
-                if (last_type !== 'TK_OPERATOR' &&
-                    (empty_anonymous_function ||
-                        last_type === 'TK_EQUALS' ||
-                        (last_type === 'TK_RESERVED' && is_special_word(flags.last_text) && flags.last_text !== 'else'))) {
-                    output.space_before_token = true;
-                } else {
-                    print_newline(false, true);
-                }
-            } else { // collapse
-                if (last_type !== 'TK_OPERATOR' && last_type !== 'TK_START_EXPR') {
-                    if (last_type === 'TK_START_BLOCK') {
-                        print_newline();
-                    } else {
-                        output.space_before_token = true;
-                    }
-                } else {
-                    // if TK_OPERATOR or TK_START_EXPR
-                    if (is_array(previous_flags.mode) && flags.last_text === ',') {
-                        if (last_last_text === '}') {
-                            // }, { in array context
-                            output.space_before_token = true;
-                        } else {
-                            print_newline(); // [a, b, c, {
-                        }
-                    }
-                }
-            }
-            print_token();
-            indent();
-        }
-
-        function handle_end_block() {
-            // statements must all be closed when their container closes
-            while (flags.mode === MODE.Statement) {
-                restore_mode();
-            }
-            var empty_braces = last_type === 'TK_START_BLOCK';
-
-            if (opt.brace_style === "expand") {
-                if (!empty_braces) {
-                    print_newline();
-                }
-            } else {
-                // skip {}
-                if (!empty_braces) {
-                    if (is_array(flags.mode) && opt.keep_array_indentation) {
-                        // we REALLY need a newline here, but newliner would skip that
-                        opt.keep_array_indentation = false;
-                        print_newline();
-                        opt.keep_array_indentation = true;
-
-                    } else {
-                        print_newline();
-                    }
-                }
-            }
-            restore_mode();
-            print_token();
-        }
-
-        function handle_word() {
-            if (current_token.type === 'TK_RESERVED' && flags.mode !== MODE.ObjectLiteral &&
-                in_array(current_token.text, ['set', 'get'])) {
-                current_token.type = 'TK_WORD';
-            }
-
-            if (current_token.type === 'TK_RESERVED' && flags.mode === MODE.ObjectLiteral) {
-                var next_token = get_token(1);
-                if (next_token.text == ':') {
-                    current_token.type = 'TK_WORD';
-                }
-            }
-
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-            } else if (current_token.wanted_newline && !is_expression(flags.mode) &&
-                (last_type !== 'TK_OPERATOR' || (flags.last_text === '--' || flags.last_text === '++')) &&
-                last_type !== 'TK_EQUALS' &&
-                (opt.preserve_newlines || !(last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const', 'set', 'get'])))) {
-
-                print_newline();
-            }
-
-            if (flags.do_block && !flags.do_while) {
-                if (current_token.type === 'TK_RESERVED' && current_token.text === 'while') {
-                    // do {} ## while ()
-                    output.space_before_token = true;
-                    print_token();
-                    output.space_before_token = true;
-                    flags.do_while = true;
-                    return;
-                } else {
-                    // do {} should always have while as the next word.
-                    // if we don't see the expected while, recover
-                    print_newline();
-                    flags.do_block = false;
-                }
-            }
-
-            // if may be followed by else, or not
-            // Bare/inline ifs are tricky
-            // Need to unwind the modes correctly: if (a) if (b) c(); else d(); else e();
-            if (flags.if_block) {
-                if (!flags.else_block && (current_token.type === 'TK_RESERVED' && current_token.text === 'else')) {
-                    flags.else_block = true;
-                } else {
-                    while (flags.mode === MODE.Statement) {
-                        restore_mode();
-                    }
-                    flags.if_block = false;
-                    flags.else_block = false;
-                }
-            }
-
-            if (current_token.type === 'TK_RESERVED' && (current_token.text === 'case' || (current_token.text === 'default' && flags.in_case_statement))) {
-                print_newline();
-                if (flags.case_body || opt.jslint_happy) {
-                    // switch cases following one another
-                    deindent();
-                    flags.case_body = false;
-                }
-                print_token();
-                flags.in_case = true;
-                flags.in_case_statement = true;
-                return;
-            }
-
-            if (current_token.type === 'TK_RESERVED' && current_token.text === 'function') {
-                if (in_array(flags.last_text, ['}', ';']) || (output.just_added_newline() && ! in_array(flags.last_text, ['[', '{', ':', '=', ',']))) {
-                    // make sure there is a nice clean space of at least one blank line
-                    // before a new function definition
-                    if ( !output.just_added_blankline() && !current_token.comments_before.length) {
-                        print_newline();
-                        print_newline(true);
-                    }
-                }
-                if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD') {
-                    if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set', 'new', 'return', 'export', 'async'])) {
-                        output.space_before_token = true;
-                    } else if (last_type === 'TK_RESERVED' && flags.last_text === 'default' && last_last_text === 'export') {
-                        output.space_before_token = true;
-                    } else {
-                        print_newline();
-                    }
-                } else if (last_type === 'TK_OPERATOR' || flags.last_text === '=') {
-                    // foo = function
-                    output.space_before_token = true;
-                } else if (!flags.multiline_frame && (is_expression(flags.mode) || is_array(flags.mode))) {
-                    // (function
-                } else {
-                    print_newline();
-                }
-            }
-
-            if (last_type === 'TK_COMMA' || last_type === 'TK_START_EXPR' || last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
-                if (!start_of_object_property()) {
-                    allow_wrap_or_preserved_newline();
-                }
-            }
-
-            if (current_token.type === 'TK_RESERVED' &&  in_array(current_token.text, ['function', 'get', 'set'])) {
-                print_token();
-                flags.last_word = current_token.text;
-                return;
-            }
-
-            prefix = 'NONE';
-
-            if (last_type === 'TK_END_BLOCK') {
-                if (!(current_token.type === 'TK_RESERVED' && in_array(current_token.text, ['else', 'catch', 'finally']))) {
-                    prefix = 'NEWLINE';
-                } else {
-                    if (opt.brace_style === "expand" ||
-                        opt.brace_style === "end-expand" ||
-                        (opt.brace_style === "none" && current_token.wanted_newline)) {
-                        prefix = 'NEWLINE';
-                    } else {
-                        prefix = 'SPACE';
-                        output.space_before_token = true;
-                    }
-                }
-            } else if (last_type === 'TK_SEMICOLON' && flags.mode === MODE.BlockStatement) {
-                // TODO: Should this be for STATEMENT as well?
-                prefix = 'NEWLINE';
-            } else if (last_type === 'TK_SEMICOLON' && is_expression(flags.mode)) {
-                prefix = 'SPACE';
-            } else if (last_type === 'TK_STRING') {
-                prefix = 'NEWLINE';
-            } else if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD' ||
-                (flags.last_text === '*' && last_last_text === 'function')) {
-                prefix = 'SPACE';
-            } else if (last_type === 'TK_START_BLOCK') {
-                prefix = 'NEWLINE';
-            } else if (last_type === 'TK_END_EXPR') {
-                output.space_before_token = true;
-                prefix = 'NEWLINE';
-            }
-
-            if (current_token.type === 'TK_RESERVED' && in_array(current_token.text, Tokenizer.line_starters) && flags.last_text !== ')') {
-                if (flags.last_text === 'else' || flags.last_text === 'export') {
-                    prefix = 'SPACE';
-                } else {
-                    prefix = 'NEWLINE';
-                }
-
-            }
-
-            if (current_token.type === 'TK_RESERVED' && in_array(current_token.text, ['else', 'catch', 'finally'])) {
-                if (last_type !== 'TK_END_BLOCK' ||
-                    opt.brace_style === "expand" ||
-                    opt.brace_style === "end-expand" ||
-                    (opt.brace_style === "none" && current_token.wanted_newline)) {
-                    print_newline();
-                } else {
-                    output.trim(true);
-                    var line = output.current_line;
-                    // If we trimmed and there's something other than a close block before us
-                    // put a newline back in.  Handles '} // comment' scenario.
-                    if (line.last() !== '}') {
-                        print_newline();
-                    }
-                    output.space_before_token = true;
-                }
-            } else if (prefix === 'NEWLINE') {
-                if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
-                    // no newline between 'return nnn'
-                    output.space_before_token = true;
-                } else if (last_type !== 'TK_END_EXPR') {
-                    if ((last_type !== 'TK_START_EXPR' || !(current_token.type === 'TK_RESERVED' && in_array(current_token.text, ['var', 'let', 'const']))) && flags.last_text !== ':') {
-                        // no need to force newline on 'var': for (var x = 0...)
-                        if (current_token.type === 'TK_RESERVED' && current_token.text === 'if' && flags.last_text === 'else') {
-                            // no newline for } else if {
-                            output.space_before_token = true;
-                        } else {
-                            print_newline();
-                        }
-                    }
-                } else if (current_token.type === 'TK_RESERVED' && in_array(current_token.text, Tokenizer.line_starters) && flags.last_text !== ')') {
-                    print_newline();
-                }
-            } else if (flags.multiline_frame && is_array(flags.mode) && flags.last_text === ',' && last_last_text === '}') {
-                print_newline(); // }, in lists get a newline treatment
-            } else if (prefix === 'SPACE') {
-                output.space_before_token = true;
-            }
-            print_token();
-            flags.last_word = current_token.text;
-
-            if (current_token.type === 'TK_RESERVED' && current_token.text === 'do') {
-                flags.do_block = true;
-            }
-
-            if (current_token.type === 'TK_RESERVED' && current_token.text === 'if') {
-                flags.if_block = true;
-            }
-        }
-
-        function handle_semicolon() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-                // Semicolon can be the start (and end) of a statement
-                output.space_before_token = false;
-            }
-            while (flags.mode === MODE.Statement && !flags.if_block && !flags.do_block) {
-                restore_mode();
-            }
-            print_token();
-        }
-
-        function handle_string() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-                // One difference - strings want at least a space before
-                output.space_before_token = true;
-            } else if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD') {
-                output.space_before_token = true;
-            } else if (last_type === 'TK_COMMA' || last_type === 'TK_START_EXPR' || last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
-                if (!start_of_object_property()) {
-                    allow_wrap_or_preserved_newline();
-                }
-            } else {
-                print_newline();
-            }
-            print_token();
-        }
-
-        function handle_equals() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-            }
-
-            if (flags.declaration_statement) {
-                // just got an '=' in a var-line, different formatting/line-breaking, etc will now be done
-                flags.declaration_assignment = true;
-            }
-            output.space_before_token = true;
-            print_token();
-            output.space_before_token = true;
-        }
-
-        function handle_comma() {
-            if (flags.declaration_statement) {
-                if (is_expression(flags.parent.mode)) {
-                    // do not break on comma, for(var a = 1, b = 2)
-                    flags.declaration_assignment = false;
-                }
-
-                print_token();
-
-                if (flags.declaration_assignment) {
-                    flags.declaration_assignment = false;
-                    print_newline(false, true);
-                } else {
-                    output.space_before_token = true;
-                    // for comma-first, we want to allow a newline before the comma
-                    // to turn into a newline after the comma, which we will fixup later
-                    if (opt.comma_first) {
-                        allow_wrap_or_preserved_newline();
-                    }
-                }
-                return;
-            }
-
-            print_token();
-            if (flags.mode === MODE.ObjectLiteral ||
-                (flags.mode === MODE.Statement && flags.parent.mode === MODE.ObjectLiteral)) {
-                if (flags.mode === MODE.Statement) {
-                    restore_mode();
-                }
-                print_newline();
-            } else {
-                // EXPR or DO_BLOCK
-                output.space_before_token = true;
-                // for comma-first, we want to allow a newline before the comma
-                // to turn into a newline after the comma, which we will fixup later
-                if (opt.comma_first) {
-                    allow_wrap_or_preserved_newline();
-                }
-            }
-
-        }
-
-        function handle_operator() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-            }
-
-            if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
-                // "return" had a special handling in TK_WORD. Now we need to return the favor
-                output.space_before_token = true;
-                print_token();
-                return;
-            }
-
-            // hack for actionscript's import .*;
-            if (current_token.text === '*' && last_type === 'TK_DOT') {
-                print_token();
-                return;
-            }
-
-            if (current_token.text === ':' && flags.in_case) {
-                flags.case_body = true;
-                indent();
-                print_token();
-                print_newline();
-                flags.in_case = false;
-                return;
-            }
-
-            if (current_token.text === '::') {
-                // no spaces around exotic namespacing syntax operator
-                print_token();
-                return;
-            }
-
-            // Allow line wrapping between operators
-            if (last_type === 'TK_OPERATOR') {
-                allow_wrap_or_preserved_newline();
-            }
-
-            var space_before = true;
-            var space_after = true;
-
-            if (in_array(current_token.text, ['--', '++', '!', '~']) || (in_array(current_token.text, ['-', '+']) && (in_array(last_type, ['TK_START_BLOCK', 'TK_START_EXPR', 'TK_EQUALS', 'TK_OPERATOR']) || in_array(flags.last_text, Tokenizer.line_starters) || flags.last_text === ','))) {
-                // unary operators (and binary +/- pretending to be unary) special cases
-
-                space_before = false;
-                space_after = false;
-
-                // http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1
-                // if there is a newline between -- or ++ and anything else we should preserve it.
-                if (current_token.wanted_newline && (current_token.text === '--' || current_token.text === '++')) {
-                    print_newline(false, true);
-                }
-
-                if (flags.last_text === ';' && is_expression(flags.mode)) {
-                    // for (;; ++i)
-                    //        ^^^
-                    space_before = true;
-                }
-
-                if (last_type === 'TK_RESERVED') {
-                    space_before = true;
-                } else if (last_type === 'TK_END_EXPR') {
-                    space_before = !(flags.last_text === ']' && (current_token.text === '--' || current_token.text === '++'));
-                } else if (last_type === 'TK_OPERATOR') {
-                    // a++ + ++b;
-                    // a - -b
-                    space_before = in_array(current_token.text, ['--', '-', '++', '+']) && in_array(flags.last_text, ['--', '-', '++', '+']);
-                    // + and - are not unary when preceeded by -- or ++ operator
-                    // a-- + b
-                    // a * +b
-                    // a - -b
-                    if (in_array(current_token.text, ['+', '-']) && in_array(flags.last_text, ['--', '++'])) {
-                        space_after = true;
-                    }
-                }
-
-                if ((flags.mode === MODE.BlockStatement || flags.mode === MODE.Statement) && (flags.last_text === '{' || flags.last_text === ';')) {
-                    // { foo; --i }
-                    // foo(); --bar;
-                    print_newline();
-                }
-            } else if (current_token.text === ':') {
-                if (flags.ternary_depth === 0) {
-                    // Colon is invalid javascript outside of ternary and object, but do our best to guess what was meant.
-                    space_before = false;
-                } else {
-                    flags.ternary_depth -= 1;
-                }
-            } else if (current_token.text === '?') {
-                flags.ternary_depth += 1;
-            } else if (current_token.text === '*' && last_type === 'TK_RESERVED' && flags.last_text === 'function') {
-                space_before = false;
-                space_after = false;
-            }
-            output.space_before_token = output.space_before_token || space_before;
-            print_token();
-            output.space_before_token = space_after;
-        }
-
-        function handle_block_comment() {
-            if (output.raw) {
-                output.add_raw_token(current_token)
-                if (current_token.directives && current_token.directives['preserve'] === 'end') {
-                    // If we're testing the raw output behavior, do not allow a directive to turn it off.
-                    if (!opt.test_output_raw) {
-                        output.raw = false;
-                    }
-                }
-                return;
-            }
-
-            if (current_token.directives) {
-                print_newline(false, true);
-                print_token();
-                if (current_token.directives['preserve'] === 'start') {
-                    output.raw = true;
-                }
-                print_newline(false, true);
-                return;
-            }
-
-            // inline block
-            if (!acorn.newline.test(current_token.text) && !current_token.wanted_newline) {
-                output.space_before_token = true;
-                print_token();
-                output.space_before_token = true;
-                return;
-            }
-
-            var lines = split_newlines(current_token.text);
-            var j; // iterator for this case
-            var javadoc = false;
-            var starless = false;
-            var lastIndent = current_token.whitespace_before;
-            var lastIndentLength = lastIndent.length;
-
-            // block comment starts with a new line
-            print_newline(false, true);
-            if (lines.length > 1) {
-                if (all_lines_start_with(lines.slice(1), '*')) {
-                    javadoc = true;
-                }
-                else if (each_line_matches_indent(lines.slice(1), lastIndent)) {
-                    starless = true;
-                }
-            }
-
-            // first line always indented
-            print_token(lines[0]);
-            for (j = 1; j < lines.length; j++) {
-                print_newline(false, true);
-                if (javadoc) {
-                    // javadoc: reformat and re-indent
-                    print_token(' ' + ltrim(lines[j]));
-                } else if (starless && lines[j].length > lastIndentLength) {
-                    // starless: re-indent non-empty content, avoiding trim
-                    print_token(lines[j].substring(lastIndentLength));
-                } else {
-                    // normal comments output raw
-                    output.add_token(lines[j]);
-                }
-            }
-
-            // for comments of more than one line, make sure there's a new line after
-            print_newline(false, true);
-        }
-
-        function handle_comment() {
-            if (current_token.wanted_newline) {
-                print_newline(false, true);
-            } else {
-                output.trim(true);
-            }
-
-            output.space_before_token = true;
-            print_token();
-            print_newline(false, true);
-        }
-
-        function handle_dot() {
-            if (start_of_statement()) {
-                // The conditional starts the statement if appropriate.
-            }
-
-            if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
-                output.space_before_token = true;
-            } else {
-                // allow preserved newlines before dots in general
-                // force newlines on dots after close paren when break_chained - for bar().baz()
-                allow_wrap_or_preserved_newline(flags.last_text === ')' && opt.break_chained_methods);
-            }
-
-            print_token();
-        }
-
-        function handle_unknown() {
-            print_token();
-
-            if (current_token.text[current_token.text.length - 1] === '\n') {
-                print_newline();
-            }
-        }
-
-        function handle_eof() {
-            // Unwind any open statements
-            while (flags.mode === MODE.Statement) {
-                restore_mode();
-            }
-        }
-    }
-
-
-    function OutputLine(parent) {
-        var _character_count = 0;
-        // use indent_count as a marker for lines that have preserved indentation
-        var _indent_count = -1;
-
-        var _items = [];
-        var _empty = true;
-
-        this.set_indent = function(level) {
-            _character_count = parent.baseIndentLength + level * parent.indent_length
-            _indent_count = level;
-        }
-
-        this.get_character_count = function() {
-            return _character_count;
-        }
-
-        this.is_empty = function() {
-            return _empty;
-        }
-
-        this.last = function() {
-            if (!this._empty) {
-              return _items[_items.length - 1];
-            } else {
-              return null;
-            }
-        }
-
-        this.push = function(input) {
-            _items.push(input);
-            _character_count += input.length;
-            _empty = false;
-        }
-
-        this.pop = function() {
-            var item = null;
-            if (!_empty) {
-                item = _items.pop();
-                _character_count -= item.length;
-                _empty = _items.length === 0;
-            }
-            return item;
-        }
-
-        this.remove_indent = function() {
-            if (_indent_count > 0) {
-                _indent_count -= 1;
-                _character_count -= parent.indent_length
-            }
-        }
-
-        this.trim = function() {
-            while (this.last() === ' ') {
-                var item = _items.pop();
-                _character_count -= 1;
-            }
-            _empty = _items.length === 0;
-        }
-
-        this.toString = function() {
-            var result = '';
-            if (!this._empty) {
-                if (_indent_count >= 0) {
-                    result = parent.indent_cache[_indent_count];
-                }
-                result += _items.join('')
-            }
-            return result;
-        }
-    }
-
-    function Output(indent_string, baseIndentString) {
-        baseIndentString = baseIndentString || '';
-        this.indent_cache = [ baseIndentString ];
-        this.baseIndentLength = baseIndentString.length;
-        this.indent_length = indent_string.length;
-        this.raw = false;
-
-        var lines =[];
-        this.baseIndentString = baseIndentString;
-        this.indent_string = indent_string;
-        this.previous_line = null;
-        this.current_line = null;
-        this.space_before_token = false;
-
-        this.add_outputline = function() {
-            this.previous_line = this.current_line;
-            this.current_line = new OutputLine(this);
-            lines.push(this.current_line);
-        }
-
-        // initialize
-        this.add_outputline();
-
-
-        this.get_line_number = function() {
-            return lines.length;
-        }
-
-        // Using object instead of string to allow for later expansion of info about each line
-        this.add_new_line = function(force_newline) {
-            if (this.get_line_number() === 1 && this.just_added_newline()) {
-                return false; // no newline on start of file
-            }
-
-            if (force_newline || !this.just_added_newline()) {
-                if (!this.raw) {
-                    this.add_outputline();
-                }
-                return true;
-            }
-
-            return false;
-        }
-
-        this.get_code = function() {
-            var sweet_code = lines.join('\n').replace(/[\r\n\t ]+$/, '');
-            return sweet_code;
-        }
-
-        this.set_indent = function(level) {
-            // Never indent your first output indent at the start of the file
-            if (lines.length > 1) {
-                while(level >= this.indent_cache.length) {
-                    this.indent_cache.push(this.indent_cache[this.indent_cache.length - 1] + this.indent_string);
-                }
-
-                this.current_line.set_indent(level);
-                return true;
-            }
-            this.current_line.set_indent(0);
-            return false;
-        }
-
-        this.add_raw_token = function(token) {
-            for (var x = 0; x < token.newlines; x++) {
-                this.add_outputline();
-            }
-            this.current_line.push(token.whitespace_before);
-            this.current_line.push(token.text);
-            this.space_before_token = false;
-        }
-
-        this.add_token = function(printable_token) {
-            this.add_space_before_token();
-            this.current_line.push(printable_token);
-        }
-
-        this.add_space_before_token = function() {
-            if (this.space_before_token && !this.just_added_newline()) {
-                this.current_line.push(' ');
-            }
-            this.space_before_token = false;
-        }
-
-        this.remove_redundant_indentation = function (frame) {
-            // This implementation is effective but has some issues:
-            //     - can cause line wrap to happen too soon due to indent removal
-            //           after wrap points are calculated
-            // These issues are minor compared to ugly indentation.
-
-            if (frame.multiline_frame ||
-                frame.mode === MODE.ForInitializer ||
-                frame.mode === MODE.Conditional) {
-                return;
-            }
-
-            // remove one indent from each line inside this section
-            var index = frame.start_line_index;
-            var line;
-
-            var output_length = lines.length;
-            while (index < output_length) {
-                lines[index].remove_indent();
-                index++;
-            }
-        }
-
-        this.trim = function(eat_newlines) {
-            eat_newlines = (eat_newlines === undefined) ? false : eat_newlines;
-
-            this.current_line.trim(indent_string, baseIndentString);
-
-            while (eat_newlines && lines.length > 1 &&
-                this.current_line.is_empty()) {
-                lines.pop();
-                this.current_line = lines[lines.length - 1]
-                this.current_line.trim();
-            }
-
-            this.previous_line = lines.length > 1 ? lines[lines.length - 2] : null;
-        }
-
-        this.just_added_newline = function() {
-            return this.current_line.is_empty();
-        }
-
-        this.just_added_blankline = function() {
-            if (this.just_added_newline()) {
-                if (lines.length === 1) {
-                    return true; // start of the file and newline = blank
-                }
-
-                var line = lines[lines.length - 2];
-                return line.is_empty();
-            }
-            return false;
-        }
-    }
-
-
-    var Token = function(type, text, newlines, whitespace_before, mode, parent) {
-        this.type = type;
-        this.text = text;
-        this.comments_before = [];
-        this.newlines = newlines || 0;
-        this.wanted_newline = newlines > 0;
-        this.whitespace_before = whitespace_before || '';
-        this.parent = null;
-        this.directives = null;
-    }
-
-    function tokenizer(input, opts, indent_string) {
-
-        var whitespace = "\n\r\t ".split('');
-        var digit = /[0-9]/;
-        var digit_hex = /[0123456789abcdefABCDEF]/;
-
-        var punct = ('+ - * / % & ++ -- = += -= *= /= %= == === != !== > < >= <= >> << >>> >>>= >>= <<= && &= | || ! ~ , : ? ^ ^= |= :: =>').split(' '); 
-        // words which should always start on new line.
-        this.line_starters = 'continue,try,throw,return,var,let,const,if,switch,case,default,for,while,break,function,import,export'.split(',');
-        var reserved_words = this.line_starters.concat(['do', 'in', 'else', 'get', 'set', 'new', 'catch', 'finally', 'typeof', 'yield', 'async', 'await']);
-
-        //  /* ... */ comment ends with nearest */ or end of file
-        var block_comment_pattern = /([\s\S]*?)((?:\*\/)|$)/g;
-
-        // comment ends just before nearest linefeed or end of file
-        var comment_pattern = /([^\n\r\u2028\u2029]*)/g;
-
-        var directives_block_pattern = /\/\* beautify( \w+[:]\w+)+ \*\//g;
-        var directive_pattern = / (\w+)[:](\w+)/g;
-        var directives_end_ignore_pattern = /([\s\S]*?)((?:\/\*\sbeautify\signore:end\s\*\/)|$)/g;
-
-        var template_pattern = /((<\?php|<\?=)[\s\S]*?\?>)|(<%[\s\S]*?%>)/g
-
-        var n_newlines, whitespace_before_token, in_html_comment, tokens, parser_pos;
-        var input_length;
-
-        this.tokenize = function() {
-            // cache the source's length.
-            input_length = input.length
-            parser_pos = 0;
-            in_html_comment = false
-            tokens = [];
-
-            var next, last;
-            var token_values;
-            var open = null;
-            var open_stack = [];
-            var comments = [];
-
-            while (!(last && last.type === 'TK_EOF')) {
-                token_values = tokenize_next();
-                next = new Token(token_values[1], token_values[0], n_newlines, whitespace_before_token);
-                while(next.type === 'TK_COMMENT' || next.type === 'TK_BLOCK_COMMENT' || next.type === 'TK_UNKNOWN') {
-                    if (next.type === 'TK_BLOCK_COMMENT') {
-                        next.directives = token_values[2];
-                    }
-                    comments.push(next);
-                    token_values = tokenize_next();
-                    next = new Token(token_values[1], token_values[0], n_newlines, whitespace_before_token);
-                }
-
-                if (comments.length) {
-                    next.comments_before = comments;
-                    comments = [];
-                }
-
-                if (next.type === 'TK_START_BLOCK' || next.type === 'TK_START_EXPR') {
-                    next.parent = last;
-                    open_stack.push(open);
-                    open = next;
-                }  else if ((next.type === 'TK_END_BLOCK' || next.type === 'TK_END_EXPR') &&
-                    (open && (
-                        (next.text === ']' && open.text === '[') ||
-                        (next.text === ')' && open.text === '(') ||
-                        (next.text === '}' && open.text === '{')))) {
-                    next.parent = open.parent;
-                    open = open_stack.pop();
-                }
-
-                tokens.push(next);
-                last = next;
-            }
-
-            return tokens;
-        }
-
-        function get_directives (text) {
-            if (!text.match(directives_block_pattern)) {
-                return null;
-            }
-
-            var directives = {};
-            directive_pattern.lastIndex = 0;
-            var directive_match = directive_pattern.exec(text);
-
-            while (directive_match) {
-                directives[directive_match[1]] = directive_match[2];
-                directive_match = directive_pattern.exec(text);
-            }
-
-            return directives;
-        }
-
-        function tokenize_next() {
-            var i, resulting_string;
-            var whitespace_on_this_line = [];
-
-            n_newlines = 0;
-            whitespace_before_token = '';
-
-            if (parser_pos >= input_length) {
-                return ['', 'TK_EOF'];
-            }
-
-            var last_token;
-            if (tokens.length) {
-                last_token = tokens[tokens.length-1];
-            } else {
-                // For the sake of tokenizing we can pretend that there was on open brace to start
-                last_token = new Token('TK_START_BLOCK', '{');
-            }
-
-
-            var c = input.charAt(parser_pos);
-            parser_pos += 1;
-
-            while (in_array(c, whitespace)) {
-
-                if (acorn.newline.test(c)) {
-                    if (!(c === '\n' && input.charAt(parser_pos-2) === '\r')) {
-                        n_newlines += 1;
-                        whitespace_on_this_line = [];
-                    }
-                } else {
-                    whitespace_on_this_line.push(c);
-                }
-
-                if (parser_pos >= input_length) {
-                    return ['', 'TK_EOF'];
-                }
-
-                c = input.charAt(parser_pos);
-                parser_pos += 1;
-            }
-
-            if(whitespace_on_this_line.length) {
-                whitespace_before_token = whitespace_on_this_line.join('');
-            }
-
-            if (digit.test(c)) {
-                var allow_decimal = true;
-                var allow_e = true;
-                var local_digit = digit;
-
-                if (c === '0' && parser_pos < input_length && /[Xx]/.test(input.charAt(parser_pos))) {
-                    // switch to hex number, no decimal or e, just hex digits
-                    allow_decimal = false;
-                    allow_e = false;
-                    c += input.charAt(parser_pos);
-                    parser_pos += 1;
-                    local_digit = digit_hex
-                } else {
-                    // we know this first loop will run.  It keeps the logic simpler.
-                    c = '';
-                    parser_pos -= 1
-                }
-
-                // Add the digits
-                while (parser_pos < input_length && local_digit.test(input.charAt(parser_pos))) {
-                    c += input.charAt(parser_pos);
-                    parser_pos += 1;
-
-                    if (allow_decimal && parser_pos < input_length && input.charAt(parser_pos) === '.') {
-                        c += input.charAt(parser_pos);
-                        parser_pos += 1;
-                        allow_decimal = false;
-                    }
-
-                    if (allow_e && parser_pos < input_length && /[Ee]/.test(input.charAt(parser_pos))) {
-                        c += input.charAt(parser_pos);
-                        parser_pos += 1;
-
-                        if (parser_pos < input_length && /[+-]/.test(input.charAt(parser_pos))) {
-                            c += input.charAt(parser_pos);
-                            parser_pos += 1;
-                        }
-
-                        allow_e = false;
-                        allow_decimal = false;
-                    }
-                }
-
-                return [c, 'TK_WORD'];
-            }
-
-            if (acorn.isIdentifierStart(input.charCodeAt(parser_pos-1))) {
-                if (parser_pos < input_length) {
-                    while (acorn.isIdentifierChar(input.charCodeAt(parser_pos))) {
-                        c += input.charAt(parser_pos);
-                        parser_pos += 1;
-                        if (parser_pos === input_length) {
-                            break;
-                        }
-                    }
-                }
-
-                if (!(last_token.type === 'TK_DOT' ||
-                        (last_token.type === 'TK_RESERVED' && in_array(last_token.text, ['set', 'get'])))
-                    && in_array(c, reserved_words)) {
-                    if (c === 'in') { // hack for 'in' operator
-                        return [c, 'TK_OPERATOR'];
-                    }
-                    return [c, 'TK_RESERVED'];
-                }
-
-                return [c, 'TK_WORD'];
-            }
-
-            if (c === '(' || c === '[') {
-                return [c, 'TK_START_EXPR'];
-            }
-
-            if (c === ')' || c === ']') {
-                return [c, 'TK_END_EXPR'];
-            }
-
-            if (c === '{') {
-                return [c, 'TK_START_BLOCK'];
-            }
-
-            if (c === '}') {
-                return [c, 'TK_END_BLOCK'];
-            }
-
-            if (c === ';') {
-                return [c, 'TK_SEMICOLON'];
-            }
-
-            if (c === '/') {
-                var comment = '';
-                // peek for comment /* ... */
-                if (input.charAt(parser_pos) === '*') {
-                    parser_pos += 1;
-                    block_comment_pattern.lastIndex = parser_pos;
-                    var comment_match = block_comment_pattern.exec(input);
-                    comment = '/*' + comment_match[0];
-                    parser_pos += comment_match[0].length;
-                    var directives = get_directives(comment);
-                    if (directives && directives['ignore'] === 'start') {
-                        directives_end_ignore_pattern.lastIndex = parser_pos;
-                        comment_match = directives_end_ignore_pattern.exec(input)
-                        comment += comment_match[0];
-                        parser_pos += comment_match[0].length;
-                    }
-                    comment = comment.replace(acorn.lineBreak, '\n');
-                    return [comment, 'TK_BLOCK_COMMENT', directives];
-                }
-                // peek for comment // ...
-                if (input.charAt(parser_pos) === '/') {
-                    parser_pos += 1;
-                    comment_pattern.lastIndex = parser_pos;
-                    var comment_match = comment_pattern.exec(input);
-                    comment = '//' + comment_match[0];
-                    parser_pos += comment_match[0].length;
-                    return [comment, 'TK_COMMENT'];
-                }
-
-            }
-
-            if (c === '`' || c === "'" || c === '"' || // string
-                (
-                    (c === '/') || // regexp
-                    (opts.e4x && c === "<" && input.slice(parser_pos - 1).match(/^<([-a-zA-Z:0-9_.]+|{[^{}]*}|!\[CDATA\[[\s\S]*?\]\])(\s+[-a-zA-Z:0-9_.]+\s*=\s*('[^']*'|"[^"]*"|{.*?}))*\s*(\/?)\s*>/)) // xml
-                ) && ( // regex and xml can only appear in specific locations during parsing
-                    (last_token.type === 'TK_RESERVED' && in_array(last_token.text , ['return', 'case', 'throw', 'else', 'do', 'typeof', 'yield'])) ||
-                    (last_token.type === 'TK_END_EXPR' && last_token.text === ')' &&
-                        last_token.parent && last_token.parent.type === 'TK_RESERVED' && in_array(last_token.parent.text, ['if', 'while', 'for'])) ||
-                    (in_array(last_token.type, ['TK_COMMENT', 'TK_START_EXPR', 'TK_START_BLOCK',
-                        'TK_END_BLOCK', 'TK_OPERATOR', 'TK_EQUALS', 'TK_EOF', 'TK_SEMICOLON', 'TK_COMMA'
-                    ]))
-                )) {
-
-                var sep = c,
-                    esc = false,
-                    has_char_escapes = false;
-
-                resulting_string = c;
-
-                if (sep === '/') {
-                    //
-                    // handle regexp
-                    //
-                    var in_char_class = false;
-                    while (parser_pos < input_length &&
-                            ((esc || in_char_class || input.charAt(parser_pos) !== sep) &&
-                            !acorn.newline.test(input.charAt(parser_pos)))) {
-                        resulting_string += input.charAt(parser_pos);
-                        if (!esc) {
-                            esc = input.charAt(parser_pos) === '\\';
-                            if (input.charAt(parser_pos) === '[') {
-                                in_char_class = true;
-                            } else if (input.charAt(parser_pos) === ']') {
-                                in_char_class = false;
-                            }
-                        } else {
-                            esc = false;
-                        }
-                        parser_pos += 1;
-                    }
-                } else if (opts.e4x && sep === '<') {
-                    //
-                    // handle e4x xml literals
-                    //
-                    var xmlRegExp = /<(\/?)([-a-zA-Z:0-9_.]+|{[^{}]*}|!\[CDATA\[[\s\S]*?\]\])(\s+[-a-zA-Z:0-9_.]+\s*=\s*('[^']*'|"[^"]*"|{.*?}))*\s*(\/?)\s*>/g;
-                    var xmlStr = input.slice(parser_pos - 1);
-                    var match = xmlRegExp.exec(xmlStr);
-                    if (match && match.index === 0) {
-                        var rootTag = match[2];
-                        var depth = 0;
-                        while (match) {
-                            var isEndTag = !! match[1];
-                            var tagName = match[2];
-                            var isSingletonTag = ( !! match[match.length - 1]) || (tagName.slice(0, 8) === "![CDATA[");
-                            if (tagName === rootTag && !isSingletonTag) {
-                                if (isEndTag) {
-                                    --depth;
-                                } else {
-                                    ++depth;
-                                }
-                            }
-                            if (depth <= 0) {
-                                break;
-                            }
-                            match = xmlRegExp.exec(xmlStr);
-                        }
-                        var xmlLength = match ? match.index + match[0].length : xmlStr.length;
-                        xmlStr = xmlStr.slice(0, xmlLength);
-                        parser_pos += xmlLength - 1;
-                        xmlStr = xmlStr.replace(acorn.lineBreak, '\n');
-                        return [xmlStr, "TK_STRING"];
-                    }
-                } else {
-                    //
-                    // handle string
-                    //
-                    // Template strings can travers lines without escape characters.
-                    // Other strings cannot
-                    while (parser_pos < input_length &&
-                            (esc || (input.charAt(parser_pos) !== sep &&
-                            (sep === '`' || !acorn.newline.test(input.charAt(parser_pos)))))) {
-                        // Handle \r\n linebreaks after escapes or in template strings
-                        if ((esc || sep === '`') && acorn.newline.test(input.charAt(parser_pos))) {
-                            if (input.charAt(parser_pos) === '\r' && input.charAt(parser_pos + 1) === '\n') {
-                                parser_pos += 1;
-                            }
-                            resulting_string += '\n';
-                        } else {
-                            resulting_string += input.charAt(parser_pos);
-                        }
-                        if (esc) {
-                            if (input.charAt(parser_pos) === 'x' || input.charAt(parser_pos) === 'u') {
-                                has_char_escapes = true;
-                            }
-                            esc = false;
-                        } else {
-                            esc = input.charAt(parser_pos) === '\\';
-                        }
-                        parser_pos += 1;
-                    }
-
-                }
-
-                if (has_char_escapes && opts.unescape_strings) {
-                    resulting_string = unescape_string(resulting_string);
-                }
-
-                if (parser_pos < input_length && input.charAt(parser_pos) === sep) {
-                    resulting_string += sep;
-                    parser_pos += 1;
-
-                    if (sep === '/') {
-                        // regexps may have modifiers /regexp/MOD , so fetch those, too
-                        // Only [gim] are valid, but if the user puts in garbage, do what we can to take it.
-                        while (parser_pos < input_length && acorn.isIdentifierStart(input.charCodeAt(parser_pos))) {
-                            resulting_string += input.charAt(parser_pos);
-                            parser_pos += 1;
-                        }
-                    }
-                }
-                return [resulting_string, 'TK_STRING'];
-            }
-
-            if (c === '#') {
-
-                if (tokens.length === 0 && input.charAt(parser_pos) === '!') {
-                    // shebang
-                    resulting_string = c;
-                    while (parser_pos < input_length && c !== '\n') {
-                        c = input.charAt(parser_pos);
-                        resulting_string += c;
-                        parser_pos += 1;
-                    }
-                    return [trim(resulting_string) + '\n', 'TK_UNKNOWN'];
-                }
-
-
-
-                // Spidermonkey-specific sharp variables for circular references
-                // https://developer.mozilla.org/En/Sharp_variables_in_JavaScript
-                // http://mxr.mozilla.org/mozilla-central/source/js/src/jsscan.cpp around line 1935
-                var sharp = '#';
-                if (parser_pos < input_length && digit.test(input.charAt(parser_pos))) {
-                    do {
-                        c = input.charAt(parser_pos);
-                        sharp += c;
-                        parser_pos += 1;
-                    } while (parser_pos < input_length && c !== '#' && c !== '=');
-                    if (c === '#') {
-                        //
-                    } else if (input.charAt(parser_pos) === '[' && input.charAt(parser_pos + 1) === ']') {
-                        sharp += '[]';
-                        parser_pos += 2;
-                    } else if (input.charAt(parser_pos) === '{' && input.charAt(parser_pos + 1) === '}') {
-                        sharp += '{}';
-                        parser_pos += 2;
-                    }
-                    return [sharp, 'TK_WORD'];
-                }
-            }
-
-            if (c === '<' && (input.charAt(parser_pos) === '?' || input.charAt(parser_pos) === '%')) {
-                template_pattern.lastIndex = parser_pos - 1;
-                var template_match = template_pattern.exec(input);
-                if(template_match) {
-                    c = template_match[0];
-                    parser_pos += c.length - 1;
-                    c = c.replace(acorn.lineBreak, '\n');
-                    return [c, 'TK_STRING'];
-                }
-            }
-
-            if (c === '<' && input.substring(parser_pos - 1, parser_pos + 3) === '') {
-                in_html_comment = false;
-                parser_pos += 2;
-                return ['-->', 'TK_COMMENT'];
-            }
-
-            if (c === '.') {
-                return [c, 'TK_DOT'];
-            }
-
-            if (in_array(c, punct)) {
-                while (parser_pos < input_length && in_array(c + input.charAt(parser_pos), punct)) {
-                    c += input.charAt(parser_pos);
-                    parser_pos += 1;
-                    if (parser_pos >= input_length) {
-                        break;
-                    }
-                }
-
-                if (c === ',') {
-                    return [c, 'TK_COMMA'];
-                } else if (c === '=') {
-                    return [c, 'TK_EQUALS'];
-                } else {
-                    return [c, 'TK_OPERATOR'];
-                }
-            }
-
-            return [c, 'TK_UNKNOWN'];
-        }
-
-
-        function unescape_string(s) {
-            var esc = false,
-                out = '',
-                pos = 0,
-                s_hex = '',
-                escaped = 0,
-                c;
-
-            while (esc || pos < s.length) {
-
-                c = s.charAt(pos);
-                pos++;
-
-                if (esc) {
-                    esc = false;
-                    if (c === 'x') {
-                        // simple hex-escape \x24
-                        s_hex = s.substr(pos, 2);
-                        pos += 2;
-                    } else if (c === 'u') {
-                        // unicode-escape, \u2134
-                        s_hex = s.substr(pos, 4);
-                        pos += 4;
-                    } else {
-                        // some common escape, e.g \n
-                        out += '\\' + c;
-                        continue;
-                    }
-                    if (!s_hex.match(/^[0123456789abcdefABCDEF]+$/)) {
-                        // some weird escaping, bail out,
-                        // leaving whole string intact
-                        return s;
-                    }
-
-                    escaped = parseInt(s_hex, 16);
-
-                    if (escaped >= 0x00 && escaped < 0x20) {
-                        // leave 0x00...0x1f escaped
-                        if (c === 'x') {
-                            out += '\\x' + s_hex;
-                        } else {
-                            out += '\\u' + s_hex;
-                        }
-                        continue;
-                    } else if (escaped === 0x22 || escaped === 0x27 || escaped === 0x5c) {
-                        // single-quote, apostrophe, backslash - escape these
-                        out += '\\' + String.fromCharCode(escaped);
-                    } else if (c === 'x' && escaped > 0x7e && escaped <= 0xff) {
-                        // we bail out on \x7f..\xff,
-                        // leaving whole string escaped,
-                        // as it's probably completely binary
-                        return s;
-                    } else {
-                        out += String.fromCharCode(escaped);
-                    }
-                } else if (c === '\\') {
-                    esc = true;
-                } else {
-                    out += c;
-                }
-            }
-            return out;
-        }
-
-    }
-
-
-    if (typeof define === "function" && define.amd) {
-        // Add support for AMD ( https://github.com/amdjs/amdjs-api/wiki/AMD#defineamd-property- )
-        define([], function() {
-            return { js_beautify: js_beautify };
-        });
-    } else if (typeof exports !== "undefined") {
-        // Add support for CommonJS. Just put this file somewhere on your require.paths
-        // and you will be able to `var js_beautify = require("beautify").js_beautify`.
-        exports.js_beautify = js_beautify;
-    } else if (typeof window !== "undefined") {
-        // If we're running a web page and don't have either of the above, add our one global
-        window.js_beautify = js_beautify;
-    } else if (typeof global !== "undefined") {
-        // If we don't even have window, try global.
-        global.js_beautify = js_beautify;
-    }
-
-}());
diff --git a/web/dep/beautify/unpackers/javascriptobfuscator_unpacker.js b/web/dep/beautify/unpackers/javascriptobfuscator_unpacker.js
deleted file mode 100644
index 18d47f6d..00000000
--- a/web/dep/beautify/unpackers/javascriptobfuscator_unpacker.js
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// simple unpacker/deobfuscator for scripts messed up with javascriptobfuscator.com
-// written by Einar Lielmanis 
-//
-// usage:
-//
-// if (JavascriptObfuscator.detect(some_string)) {
-//     var unpacked = JavascriptObfuscator.unpack(some_string);
-// }
-//
-//
-
-var JavascriptObfuscator = {
-    detect: function (str) {
-        return /^var _0x[a-f0-9]+ ?\= ?\[/.test(str);
-    },
-
-    unpack: function (str) {
-        if (JavascriptObfuscator.detect(str)) {
-            var matches = /var (_0x[a-f\d]+) ?\= ?\[(.*?)\];/.exec(str);
-            if (matches) {
-                var var_name = matches[1];
-                var strings = JavascriptObfuscator._smart_split(matches[2]);
-                str = str.substring(matches[0].length);
-                for (var k in strings) {
-                    str = str.replace(new RegExp(var_name + '\\[' + k + '\\]', 'g'),
-                        JavascriptObfuscator._fix_quotes(JavascriptObfuscator._unescape(strings[k])));
-                }
-            }
-        }
-        return str;
-    },
-
-    _fix_quotes: function(str) {
-        var matches = /^"(.*)"$/.exec(str);
-        if (matches) {
-            str = matches[1];
-            str = "'" + str.replace(/'/g, "\\'") + "'";
-        }
-        return str;
-    },
-
-    _smart_split: function(str) {
-        var strings = [];
-        var pos = 0;
-        while (pos < str.length) {
-            if (str.charAt(pos) == '"') {
-                // new word
-                var word = '';
-                pos += 1;
-                while (pos < str.length) {
-                    if (str.charAt(pos) == '"') {
-                        break;
-                    }
-                    if (str.charAt(pos) == '\\') {
-                        word += '\\';
-                        pos++;
-                    }
-                    word += str.charAt(pos);
-                    pos++;
-                }
-                strings.push('"' + word + '"');
-            }
-            pos += 1;
-        }
-        return strings;
-    },
-
-
-    _unescape: function (str) {
-        // inefficient if used repeatedly or on small strings, but wonderful on single large chunk of text
-        for (var i = 32; i < 128; i++) {
-            str = str.replace(new RegExp('\\\\x' + i.toString(16), 'ig'), String.fromCharCode(i));
-        }
-        str = str.replace(/\\x09/g, "\t");
-        return str;
-    },
-
-    run_tests: function (sanity_test) {
-        var t = sanity_test || new SanityTest();
-
-        t.test_function(JavascriptObfuscator._smart_split, "JavascriptObfuscator._smart_split");
-        t.expect('', []);
-        t.expect('"a", "b"', ['"a"', '"b"']);
-        t.expect('"aaa","bbbb"', ['"aaa"', '"bbbb"']);
-        t.expect('"a", "b\\\""', ['"a"', '"b\\\""']);
-        t.test_function(JavascriptObfuscator._unescape, 'JavascriptObfuscator._unescape');
-        t.expect('\\x40', '@');
-        t.expect('\\x10', '\\x10');
-        t.expect('\\x1', '\\x1');
-        t.expect("\\x61\\x62\\x22\\x63\\x64", 'ab"cd');
-        t.test_function(JavascriptObfuscator.detect, 'JavascriptObfuscator.detect');
-        t.expect('', false);
-        t.expect('abcd', false);
-        t.expect('var _0xaaaa', false);
-        t.expect('var _0xaaaa = ["a", "b"]', true);
-        t.expect('var _0xaaaa=["a", "b"]', true);
-        t.expect('var _0x1234=["a","b"]', true);
-        return t;
-    }
-
-
-};
diff --git a/web/dep/beautify/unpackers/myobfuscate_unpacker.js b/web/dep/beautify/unpackers/myobfuscate_unpacker.js
deleted file mode 100644
index 3200db00..00000000
--- a/web/dep/beautify/unpackers/myobfuscate_unpacker.js
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// simple unpacker/deobfuscator for scripts messed up with myobfuscate.com
-// You really don't want to obfuscate your scripts there: they're tracking
-// your unpackings, your script gets turned into something like this,
-// as of 2011-04-25:
-/*
-
-    var _escape = 'your_script_escaped';
-    var _111 = document.createElement('script');
-    _111.src = 'http://api.www.myobfuscate.com/?getsrc=ok' +
-        '&ref=' + encodeURIComponent(document.referrer) +
-        '&url=' + encodeURIComponent(document.URL);
-    var 000 = document.getElementsByTagName('head')[0];
-    000.appendChild(_111);
-    document.write(unescape(_escape));
-
-*/
-//
-// written by Einar Lielmanis 
-//
-// usage:
-//
-// if (MyObfuscate.detect(some_string)) {
-//     var unpacked = MyObfuscate.unpack(some_string);
-// }
-//
-//
-
-var MyObfuscate = {
-    detect: function (str) {
-        if (/^var _?[0O1lI]{3}\=('|\[).*\)\)\);/.test(str)) {
-            return true;
-        }
-        if (/^function _?[0O1lI]{3}\(_/.test(str) && /eval\(/.test(str)) {
-            return true;
-        }
-        return false;
-    },
-
-    unpack: function (str) {
-        if (MyObfuscate.detect(str)) {
-            var __eval = eval;
-            try {
-                eval = function (unpacked) {
-                    if (MyObfuscate.starts_with(unpacked, 'var _escape')) {
-                        // fetch the urlencoded stuff from the script,
-                        var matches = /'([^']*)'/.exec(unpacked);
-                        var unescaped = unescape(matches[1]);
-                        if (MyObfuscate.starts_with(unescaped, '')) {
-                            unescaped = unescaped.substr(0, unescaped.length - 9);
-                        }
-                        unpacked = unescaped;
-                    }
-                    // throw to terminate the script
-                    unpacked =  "// Unpacker warning: be careful when using myobfuscate.com for your projects:\n" +
-                        "// scripts obfuscated by the free online version may call back home.\n" +
-                        "\n//\n" + unpacked;
-                    throw unpacked;
-                };
-                __eval(str); // should throw
-            } catch (e) {
-                // well, it failed. we'll just return the original, instead of crashing on user.
-                if (typeof e === "string") {
-                    str = e;
-                }
-            }
-            eval = __eval;
-        }
-        return str;
-    },
-
-    starts_with: function (str, what) {
-        return str.substr(0, what.length) === what;
-    },
-
-    ends_with: function (str, what) {
-        return str.substr(str.length - what.length, what.length) === what;
-    },
-
-    run_tests: function (sanity_test) {
-        var t = sanity_test || new SanityTest();
-
-        return t;
-    }
-
-
-};
diff --git a/web/dep/beautify/unpackers/p_a_c_k_e_r_unpacker.js b/web/dep/beautify/unpackers/p_a_c_k_e_r_unpacker.js
deleted file mode 100644
index fdf01133..00000000
--- a/web/dep/beautify/unpackers/p_a_c_k_e_r_unpacker.js
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// Unpacker for Dean Edward's p.a.c.k.e.r, a part of javascript beautifier
-// written by Einar Lielmanis 
-//
-// Coincidentally, it can defeat a couple of other eval-based compressors.
-//
-// usage:
-//
-// if (P_A_C_K_E_R.detect(some_string)) {
-//     var unpacked = P_A_C_K_E_R.unpack(some_string);
-// }
-//
-//
-
-var P_A_C_K_E_R = {
-    detect: function (str) {
-        return (P_A_C_K_E_R.get_chunks(str).length > 0);
-    },
-
-    get_chunks: function(str) {
-        var chunks = str.match(/eval\(\(?function\(.*?(,0,\{\}\)\)|split\('\|'\)\)\))($|\n)/g);
-        return chunks ? chunks : [];
-    },
-
-    unpack: function (str) {
-        var chunks = P_A_C_K_E_R.get_chunks(str),
-            chunk;
-        for(var i = 0; i < chunks.length; i++) {
-            chunk = chunks[i].replace(/\n$/, '');
-            str = str.split(chunk).join( P_A_C_K_E_R.unpack_chunk(chunk) );
-        }
-        return str;
-    },
-
-    unpack_chunk: function (str) {
-        var unpacked_source = '';
-        var __eval = eval;
-        if (P_A_C_K_E_R.detect(str)) {
-            try {
-                eval = function (s) { unpacked_source += s; return unpacked_source; };
-                __eval(str);
-                if (typeof unpacked_source == 'string' && unpacked_source) {
-                    str = unpacked_source;
-                }
-            } catch (e) {
-                // well, it failed. we'll just return the original, instead of crashing on user.
-            }
-        }
-        eval = __eval;
-        return str;
-    },
-
-    run_tests: function (sanity_test) {
-        var t = sanity_test || new SanityTest(),
-
-        pk1 = "eval(function(p,a,c,k,e,r){e=String;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}('0 2=1',3,3,'var||a'.split('|'),0,{}))",
-        unpk1 = 'var a=1',
-        pk2 = "eval(function(p,a,c,k,e,r){e=String;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}('0 2=1',3,3,'foo||b'.split('|'),0,{}))",
-        unpk2 = 'foo b=1',
-        pk_broken =  "eval(function(p,a,c,k,e,r){BORKBORK;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}('0 2=1',3,3,'var||a'.split('|'),0,{}))";
-        pk3 = "eval(function(p,a,c,k,e,r){e=String;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[e]}];e=function(){return'\\\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\\\b'+e(c)+'\\\\b','g'),k[c]);return p}('0 2=1{}))',3,3,'var||a'.split('|'),0,{}))",
-        unpk3 = 'var a=1{}))',
-
-        t.test_function(P_A_C_K_E_R.detect, "P_A_C_K_E_R.detect");
-        t.expect('', false);
-        t.expect('var a = b', false);
-        t.test_function(P_A_C_K_E_R.unpack, "P_A_C_K_E_R.unpack");
-        t.expect(pk_broken, pk_broken);
-        t.expect(pk1, unpk1);
-        t.expect(pk2, unpk2);
-        t.expect(pk3, unpk3);
-
-        var filler = '\nfiller\n';
-        t.expect(filler + pk1 + "\n" + pk_broken + filler + pk2 + filler, filler + unpk1 + "\n" + pk_broken + filler + unpk2 + filler);
-
-        return t;
-    }
-
-
-};
diff --git a/web/dep/beautify/unpackers/urlencode_unpacker.js b/web/dep/beautify/unpackers/urlencode_unpacker.js
deleted file mode 100644
index 51a5f7b8..00000000
--- a/web/dep/beautify/unpackers/urlencode_unpacker.js
+++ /dev/null
@@ -1,73 +0,0 @@
-/*global unescape */
-/*jshint curly: false, scripturl: true */
-//
-// trivial bookmarklet/escaped script detector for the javascript beautifier
-// written by Einar Lielmanis 
-//
-// usage:
-//
-// if (Urlencoded.detect(some_string)) {
-//     var unpacked = Urlencoded.unpack(some_string);
-// }
-//
-//
-
-var isNode = (typeof module !== 'undefined' && module.exports);
-if (isNode) {
-    var SanityTest = require(__dirname + '/../../test/sanitytest');
-}
-
-var Urlencoded = {
-    detect: function (str) {
-        // the fact that script doesn't contain any space, but has %20 instead
-        // should be sufficient check for now.
-        if (str.indexOf(' ') == -1) {
-            if (str.indexOf('%2') != -1) return true;
-            if (str.replace(/[^%]+/g, '').length > 3) return true;
-        }
-        return false;
-    },
-
-    unpack: function (str) {
-        if (Urlencoded.detect(str)) {
-            if (str.indexOf('%2B') != -1 || str.indexOf('%2b') != -1) {
-                // "+" escaped as "%2B"
-                return unescape(str.replace(/\+/g, '%20'));
-            } else {
-                return unescape(str);
-            }
-        }
-        return str;
-    },
-
-
-
-    run_tests: function (sanity_test) {
-        var t = sanity_test || new SanityTest();
-        t.test_function(Urlencoded.detect, "Urlencoded.detect");
-        t.expect('', false);
-        t.expect('var a = b', false);
-        t.expect('var%20a+=+b', true);
-        t.expect('var%20a=b', true);
-        t.expect('var%20%21%22', true);
-        t.expect('javascript:(function(){var%20whatever={init:function(){alert(%22a%22+%22b%22)}};whatever.init()})();', true);
-        t.test_function(Urlencoded.unpack, 'Urlencoded.unpack');
-
-        t.expect('javascript:(function(){var%20whatever={init:function(){alert(%22a%22+%22b%22)}};whatever.init()})();',
-            'javascript:(function(){var whatever={init:function(){alert("a"+"b")}};whatever.init()})();'
-        );
-        t.expect('', '');
-        t.expect('abcd', 'abcd');
-        t.expect('var a = b', 'var a = b');
-        t.expect('var%20a=b', 'var a=b');
-        t.expect('var%20a=b+1', 'var a=b+1');
-        t.expect('var%20a=b%2b1', 'var a=b+1');
-        return t;
-    }
-
-
-};
-
-if (isNode) {
-    module.exports = Urlencoded;
-}
diff --git a/web/dep/codemirror/codemirror.css b/web/dep/codemirror/codemirror.css
deleted file mode 100644
index ceacd130..00000000
--- a/web/dep/codemirror/codemirror.css
+++ /dev/null
@@ -1,325 +0,0 @@
-/* BASICS */
-
-.CodeMirror {
-  /* Set height, width, borders, and global font properties here */
-  font-family: monospace;
-  height: 300px;
-  color: black;
-}
-
-/* PADDING */
-
-.CodeMirror-lines {
-  padding: 4px 0; /* Vertical padding around content */
-}
-.CodeMirror pre {
-  padding: 0 4px; /* Horizontal padding of content */
-}
-
-.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
-  background-color: white; /* The little square between H and V scrollbars */
-}
-
-/* GUTTER */
-
-.CodeMirror-gutters {
-  border-right: 1px solid #ddd;
-  background-color: #f7f7f7;
-  white-space: nowrap;
-}
-.CodeMirror-linenumbers {}
-.CodeMirror-linenumber {
-  padding: 0 3px 0 5px;
-  min-width: 20px;
-  text-align: right;
-  color: #999;
-  white-space: nowrap;
-}
-
-.CodeMirror-guttermarker { color: black; }
-.CodeMirror-guttermarker-subtle { color: #999; }
-
-/* CURSOR */
-
-.CodeMirror div.CodeMirror-cursor {
-  border-left: 1px solid black;
-}
-/* Shown when moving in bi-directional text */
-.CodeMirror div.CodeMirror-secondarycursor {
-  border-left: 1px solid silver;
-}
-.CodeMirror.cm-fat-cursor div.CodeMirror-cursor {
-  width: auto;
-  border: 0;
-  background: #7e7;
-}
-.CodeMirror.cm-fat-cursor div.CodeMirror-cursors {
-  z-index: 1;
-}
-
-.cm-animate-fat-cursor {
-  width: auto;
-  border: 0;
-  -webkit-animation: blink 1.06s steps(1) infinite;
-  -moz-animation: blink 1.06s steps(1) infinite;
-  animation: blink 1.06s steps(1) infinite;
-}
-@-moz-keyframes blink {
-  0% { background: #7e7; }
-  50% { background: none; }
-  100% { background: #7e7; }
-}
-@-webkit-keyframes blink {
-  0% { background: #7e7; }
-  50% { background: none; }
-  100% { background: #7e7; }
-}
-@keyframes blink {
-  0% { background: #7e7; }
-  50% { background: none; }
-  100% { background: #7e7; }
-}
-
-/* Can style cursor different in overwrite (non-insert) mode */
-div.CodeMirror-overwrite div.CodeMirror-cursor {}
-
-.cm-tab { display: inline-block; text-decoration: inherit; }
-
-.CodeMirror-ruler {
-  border-left: 1px solid #ccc;
-  position: absolute;
-}
-
-/* DEFAULT THEME */
-
-.cm-s-default .cm-keyword {color: #708;}
-.cm-s-default .cm-atom {color: #219;}
-.cm-s-default .cm-number {color: #164;}
-.cm-s-default .cm-def {color: #00f;}
-.cm-s-default .cm-variable,
-.cm-s-default .cm-punctuation,
-.cm-s-default .cm-property,
-.cm-s-default .cm-operator {}
-.cm-s-default .cm-variable-2 {color: #05a;}
-.cm-s-default .cm-variable-3 {color: #085;}
-.cm-s-default .cm-comment {color: #a50;}
-.cm-s-default .cm-string {color: #a11;}
-.cm-s-default .cm-string-2 {color: #f50;}
-.cm-s-default .cm-meta {color: #555;}
-.cm-s-default .cm-qualifier {color: #555;}
-.cm-s-default .cm-builtin {color: #30a;}
-.cm-s-default .cm-bracket {color: #997;}
-.cm-s-default .cm-tag {color: #170;}
-.cm-s-default .cm-attribute {color: #00c;}
-.cm-s-default .cm-header {color: blue;}
-.cm-s-default .cm-quote {color: #090;}
-.cm-s-default .cm-hr {color: #999;}
-.cm-s-default .cm-link {color: #00c;}
-
-.cm-negative {color: #d44;}
-.cm-positive {color: #292;}
-.cm-header, .cm-strong {font-weight: bold;}
-.cm-em {font-style: italic;}
-.cm-link {text-decoration: underline;}
-.cm-strikethrough {text-decoration: line-through;}
-
-.cm-s-default .cm-error {color: #f00;}
-.cm-invalidchar {color: #f00;}
-
-.CodeMirror-composing { border-bottom: 2px solid; }
-
-/* Default styles for common addons */
-
-div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
-div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
-.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
-.CodeMirror-activeline-background {background: #e8f2ff;}
-
-/* STOP */
-
-/* The rest of this file contains styles related to the mechanics of
-   the editor. You probably shouldn't touch them. */
-
-.CodeMirror {
-  position: relative;
-  overflow: hidden;
-  background: white;
-}
-
-.CodeMirror-scroll {
-  overflow: scroll !important; /* Things will break if this is overridden */
-  /* 30px is the magic margin used to hide the element's real scrollbars */
-  /* See overflow: hidden in .CodeMirror */
-  margin-bottom: -30px; margin-right: -30px;
-  padding-bottom: 30px;
-  height: 100%;
-  outline: none; /* Prevent dragging from highlighting the element */
-  position: relative;
-}
-.CodeMirror-sizer {
-  position: relative;
-  border-right: 30px solid transparent;
-}
-
-/* The fake, visible scrollbars. Used to force redraw during scrolling
-   before actuall scrolling happens, thus preventing shaking and
-   flickering artifacts. */
-.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
-  position: absolute;
-  z-index: 6;
-  display: none;
-}
-.CodeMirror-vscrollbar {
-  right: 0; top: 0;
-  overflow-x: hidden;
-  overflow-y: scroll;
-}
-.CodeMirror-hscrollbar {
-  bottom: 0; left: 0;
-  overflow-y: hidden;
-  overflow-x: scroll;
-}
-.CodeMirror-scrollbar-filler {
-  right: 0; bottom: 0;
-}
-.CodeMirror-gutter-filler {
-  left: 0; bottom: 0;
-}
-
-.CodeMirror-gutters {
-  position: absolute; left: 0; top: 0;
-  z-index: 3;
-}
-.CodeMirror-gutter {
-  white-space: normal;
-  height: 100%;
-  display: inline-block;
-  margin-bottom: -30px;
-  /* Hack to make IE7 behave */
-  *zoom:1;
-  *display:inline;
-}
-.CodeMirror-gutter-wrapper {
-  position: absolute;
-  z-index: 4;
-  height: 100%;
-}
-.CodeMirror-gutter-elt {
-  position: absolute;
-  cursor: default;
-  z-index: 4;
-}
-.CodeMirror-gutter-wrapper {
-  -webkit-user-select: none;
-  -moz-user-select: none;
-  user-select: none;
-}
-
-.CodeMirror-lines {
-  cursor: text;
-  min-height: 1px; /* prevents collapsing before first draw */
-}
-.CodeMirror pre {
-  /* Reset some styles that the rest of the page might have set */
-  -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
-  border-width: 0;
-  background: transparent;
-  font-family: inherit;
-  font-size: inherit;
-  margin: 0;
-  white-space: pre;
-  word-wrap: normal;
-  line-height: inherit;
-  color: inherit;
-  z-index: 2;
-  position: relative;
-  overflow: visible;
-  -webkit-tap-highlight-color: transparent;
-}
-.CodeMirror-wrap pre {
-  word-wrap: break-word;
-  white-space: pre-wrap;
-  word-break: normal;
-}
-
-.CodeMirror-linebackground {
-  position: absolute;
-  left: 0; right: 0; top: 0; bottom: 0;
-  z-index: 0;
-}
-
-.CodeMirror-linewidget {
-  position: relative;
-  z-index: 2;
-  overflow: auto;
-}
-
-.CodeMirror-widget {}
-
-.CodeMirror-code {
-  outline: none;
-}
-
-/* Force content-box sizing for the elements where we expect it */
-.CodeMirror-scroll,
-.CodeMirror-sizer,
-.CodeMirror-gutter,
-.CodeMirror-gutters,
-.CodeMirror-linenumber {
-  -moz-box-sizing: content-box;
-  box-sizing: content-box;
-}
-
-.CodeMirror-measure {
-  position: absolute;
-  width: 100%;
-  height: 0;
-  overflow: hidden;
-  visibility: hidden;
-}
-.CodeMirror-measure pre { position: static; }
-
-.CodeMirror div.CodeMirror-cursor {
-  position: absolute;
-  border-right: none;
-  width: 0;
-}
-
-div.CodeMirror-cursors {
-  visibility: hidden;
-  position: relative;
-  z-index: 3;
-}
-.CodeMirror-focused div.CodeMirror-cursors {
-  visibility: visible;
-}
-
-.CodeMirror-selected { background: #d9d9d9; }
-.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
-.CodeMirror-crosshair { cursor: crosshair; }
-.CodeMirror ::selection { background: #d7d4f0; }
-.CodeMirror ::-moz-selection { background: #d7d4f0; }
-
-.cm-searching {
-  background: #ffa;
-  background: rgba(255, 255, 0, .4);
-}
-
-/* IE7 hack to prevent it from returning funny offsetTops on the spans */
-.CodeMirror span { *vertical-align: text-bottom; }
-
-/* Used to force a border model for a node */
-.cm-force-border { padding-right: .1px; }
-
-@media print {
-  /* Hide the cursor when printing */
-  .CodeMirror div.CodeMirror-cursors {
-    visibility: hidden;
-  }
-}
-
-/* See issue #2901 */
-.cm-tab-wrap-hack:after { content: ''; }
-
-/* Help users use markselection to safely style text background */
-span.CodeMirror-selectedtext { background: none; }
diff --git a/web/dep/codemirror/codemirror.js b/web/dep/codemirror/codemirror.js
deleted file mode 100644
index a1dfd0fc..00000000
--- a/web/dep/codemirror/codemirror.js
+++ /dev/null
@@ -1,8745 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-// This is CodeMirror (http://codemirror.net), a code editor
-// implemented in JavaScript on top of the browser's DOM.
-//
-// You can find some technical background for some of the code below
-// at http://marijnhaverbeke.nl/blog/#cm-internals .
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    module.exports = mod();
-  else if (typeof define == "function" && define.amd) // AMD
-    return define([], mod);
-  else // Plain browser env
-    this.CodeMirror = mod();
-})(function() {
-  "use strict";
-
-  // BROWSER SNIFFING
-
-  // Kludges for bugs and behavior differences that can't be feature
-  // detected are enabled based on userAgent etc sniffing.
-
-  var gecko = /gecko\/\d/i.test(navigator.userAgent);
-  var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
-  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent);
-  var ie = ie_upto10 || ie_11up;
-  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
-  var webkit = /WebKit\//.test(navigator.userAgent);
-  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
-  var chrome = /Chrome\//.test(navigator.userAgent);
-  var presto = /Opera\//.test(navigator.userAgent);
-  var safari = /Apple Computer/.test(navigator.vendor);
-  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
-  var phantom = /PhantomJS/.test(navigator.userAgent);
-
-  var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
-  // This is woefully incomplete. Suggestions for alternative methods welcome.
-  var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
-  var mac = ios || /Mac/.test(navigator.platform);
-  var windows = /win/i.test(navigator.platform);
-
-  var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
-  if (presto_version) presto_version = Number(presto_version[1]);
-  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
-  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
-  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
-  var captureRightClick = gecko || (ie && ie_version >= 9);
-
-  // Optimize some code when these features are not used.
-  var sawReadOnlySpans = false, sawCollapsedSpans = false;
-
-  // EDITOR CONSTRUCTOR
-
-  // A CodeMirror instance represents an editor. This is the object
-  // that user code is usually dealing with.
-
-  function CodeMirror(place, options) {
-    if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
-
-    this.options = options = options ? copyObj(options) : {};
-    // Determine effective options based on given values and defaults.
-    copyObj(defaults, options, false);
-    setGuttersForLineNumbers(options);
-
-    var doc = options.value;
-    if (typeof doc == "string") doc = new Doc(doc, options.mode);
-    this.doc = doc;
-
-    var input = new CodeMirror.inputStyles[options.inputStyle](this);
-    var display = this.display = new Display(place, doc, input);
-    display.wrapper.CodeMirror = this;
-    updateGutters(this);
-    themeChanged(this);
-    if (options.lineWrapping)
-      this.display.wrapper.className += " CodeMirror-wrap";
-    if (options.autofocus && !mobile) display.input.focus();
-    initScrollbars(this);
-
-    this.state = {
-      keyMaps: [],  // stores maps added by addKeyMap
-      overlays: [], // highlighting overlays, as added by addOverlay
-      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
-      overwrite: false,
-      delayingBlurEvent: false,
-      focused: false,
-      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
-      pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
-      draggingText: false,
-      highlight: new Delayed(), // stores highlight worker timeout
-      keySeq: null,  // Unfinished key sequence
-      specialChars: null
-    };
-
-    var cm = this;
-
-    // Override magic textarea content restore that IE sometimes does
-    // on our hidden textarea on reload
-    if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
-
-    registerEventHandlers(this);
-    ensureGlobalHandlers();
-
-    startOperation(this);
-    this.curOp.forceUpdate = true;
-    attachDoc(this, doc);
-
-    if ((options.autofocus && !mobile) || cm.hasFocus())
-      setTimeout(bind(onFocus, this), 20);
-    else
-      onBlur(this);
-
-    for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
-      optionHandlers[opt](this, options[opt], Init);
-    maybeUpdateLineNumberWidth(this);
-    if (options.finishInit) options.finishInit(this);
-    for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
-    endOperation(this);
-    // Suppress optimizelegibility in Webkit, since it breaks text
-    // measuring on line wrapping boundaries.
-    if (webkit && options.lineWrapping &&
-        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
-      display.lineDiv.style.textRendering = "auto";
-  }
-
-  // DISPLAY CONSTRUCTOR
-
-  // The display handles the DOM integration, both for input reading
-  // and content drawing. It holds references to DOM nodes and
-  // display-related state.
-
-  function Display(place, doc, input) {
-    var d = this;
-    this.input = input;
-
-    // Covers bottom-right square when both scrollbars are present.
-    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
-    d.scrollbarFiller.setAttribute("cm-not-content", "true");
-    // Covers bottom of gutter when coverGutterNextToScrollbar is on
-    // and h scrollbar is present.
-    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
-    d.gutterFiller.setAttribute("cm-not-content", "true");
-    // Will contain the actual code, positioned to cover the viewport.
-    d.lineDiv = elt("div", null, "CodeMirror-code");
-    // Elements are added to these to represent selection and cursors.
-    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
-    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
-    // A visibility: hidden element used to find the size of things.
-    d.measure = elt("div", null, "CodeMirror-measure");
-    // When lines outside of the viewport are measured, they are drawn in this.
-    d.lineMeasure = elt("div", null, "CodeMirror-measure");
-    // Wraps everything that needs to exist inside the vertically-padded coordinate system
-    d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
-                      null, "position: relative; outline: none");
-    // Moved around its parent to cover visible view.
-    d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
-    // Set to the height of the document, allowing scrolling.
-    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
-    d.sizerWidth = null;
-    // Behavior of elts with overflow: auto and padding is
-    // inconsistent across browsers. This is used to ensure the
-    // scrollable area is big enough.
-    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
-    // Will contain the gutters, if any.
-    d.gutters = elt("div", null, "CodeMirror-gutters");
-    d.lineGutter = null;
-    // Actual scrollable element.
-    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
-    d.scroller.setAttribute("tabIndex", "-1");
-    // The element in which the editor lives.
-    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
-
-    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
-    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
-    if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
-
-    if (place) {
-      if (place.appendChild) place.appendChild(d.wrapper);
-      else place(d.wrapper);
-    }
-
-    // Current rendered range (may be bigger than the view window).
-    d.viewFrom = d.viewTo = doc.first;
-    d.reportedViewFrom = d.reportedViewTo = doc.first;
-    // Information about the rendered lines.
-    d.view = [];
-    d.renderedView = null;
-    // Holds info about a single rendered line when it was rendered
-    // for measurement, while not in view.
-    d.externalMeasured = null;
-    // Empty space (in pixels) above the view
-    d.viewOffset = 0;
-    d.lastWrapHeight = d.lastWrapWidth = 0;
-    d.updateLineNumbers = null;
-
-    d.nativeBarWidth = d.barHeight = d.barWidth = 0;
-    d.scrollbarsClipped = false;
-
-    // Used to only resize the line number gutter when necessary (when
-    // the amount of lines crosses a boundary that makes its width change)
-    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
-    // Set to true when a non-horizontal-scrolling line widget is
-    // added. As an optimization, line widget aligning is skipped when
-    // this is false.
-    d.alignWidgets = false;
-
-    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
-
-    // Tracks the maximum line length so that the horizontal scrollbar
-    // can be kept static when scrolling.
-    d.maxLine = null;
-    d.maxLineLength = 0;
-    d.maxLineChanged = false;
-
-    // Used for measuring wheel scrolling granularity
-    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
-
-    // True when shift is held down.
-    d.shift = false;
-
-    // Used to track whether anything happened since the context menu
-    // was opened.
-    d.selForContextMenu = null;
-
-    d.activeTouch = null;
-
-    input.init(d);
-  }
-
-  // STATE UPDATES
-
-  // Used to get the editor into a consistent state again when options change.
-
-  function loadMode(cm) {
-    cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
-    resetModeState(cm);
-  }
-
-  function resetModeState(cm) {
-    cm.doc.iter(function(line) {
-      if (line.stateAfter) line.stateAfter = null;
-      if (line.styles) line.styles = null;
-    });
-    cm.doc.frontier = cm.doc.first;
-    startWorker(cm, 100);
-    cm.state.modeGen++;
-    if (cm.curOp) regChange(cm);
-  }
-
-  function wrappingChanged(cm) {
-    if (cm.options.lineWrapping) {
-      addClass(cm.display.wrapper, "CodeMirror-wrap");
-      cm.display.sizer.style.minWidth = "";
-      cm.display.sizerWidth = null;
-    } else {
-      rmClass(cm.display.wrapper, "CodeMirror-wrap");
-      findMaxLine(cm);
-    }
-    estimateLineHeights(cm);
-    regChange(cm);
-    clearCaches(cm);
-    setTimeout(function(){updateScrollbars(cm);}, 100);
-  }
-
-  // Returns a function that estimates the height of a line, to use as
-  // first approximation until the line becomes visible (and is thus
-  // properly measurable).
-  function estimateHeight(cm) {
-    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
-    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
-    return function(line) {
-      if (lineIsHidden(cm.doc, line)) return 0;
-
-      var widgetsHeight = 0;
-      if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
-        if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
-      }
-
-      if (wrapping)
-        return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
-      else
-        return widgetsHeight + th;
-    };
-  }
-
-  function estimateLineHeights(cm) {
-    var doc = cm.doc, est = estimateHeight(cm);
-    doc.iter(function(line) {
-      var estHeight = est(line);
-      if (estHeight != line.height) updateLineHeight(line, estHeight);
-    });
-  }
-
-  function themeChanged(cm) {
-    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
-      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
-    clearCaches(cm);
-  }
-
-  function guttersChanged(cm) {
-    updateGutters(cm);
-    regChange(cm);
-    setTimeout(function(){alignHorizontally(cm);}, 20);
-  }
-
-  // Rebuild the gutter elements, ensure the margin to the left of the
-  // code matches their width.
-  function updateGutters(cm) {
-    var gutters = cm.display.gutters, specs = cm.options.gutters;
-    removeChildren(gutters);
-    for (var i = 0; i < specs.length; ++i) {
-      var gutterClass = specs[i];
-      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
-      if (gutterClass == "CodeMirror-linenumbers") {
-        cm.display.lineGutter = gElt;
-        gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
-      }
-    }
-    gutters.style.display = i ? "" : "none";
-    updateGutterSpace(cm);
-  }
-
-  function updateGutterSpace(cm) {
-    var width = cm.display.gutters.offsetWidth;
-    cm.display.sizer.style.marginLeft = width + "px";
-  }
-
-  // Compute the character length of a line, taking into account
-  // collapsed ranges (see markText) that might hide parts, and join
-  // other lines onto it.
-  function lineLength(line) {
-    if (line.height == 0) return 0;
-    var len = line.text.length, merged, cur = line;
-    while (merged = collapsedSpanAtStart(cur)) {
-      var found = merged.find(0, true);
-      cur = found.from.line;
-      len += found.from.ch - found.to.ch;
-    }
-    cur = line;
-    while (merged = collapsedSpanAtEnd(cur)) {
-      var found = merged.find(0, true);
-      len -= cur.text.length - found.from.ch;
-      cur = found.to.line;
-      len += cur.text.length - found.to.ch;
-    }
-    return len;
-  }
-
-  // Find the longest line in the document.
-  function findMaxLine(cm) {
-    var d = cm.display, doc = cm.doc;
-    d.maxLine = getLine(doc, doc.first);
-    d.maxLineLength = lineLength(d.maxLine);
-    d.maxLineChanged = true;
-    doc.iter(function(line) {
-      var len = lineLength(line);
-      if (len > d.maxLineLength) {
-        d.maxLineLength = len;
-        d.maxLine = line;
-      }
-    });
-  }
-
-  // Make sure the gutters options contains the element
-  // "CodeMirror-linenumbers" when the lineNumbers option is true.
-  function setGuttersForLineNumbers(options) {
-    var found = indexOf(options.gutters, "CodeMirror-linenumbers");
-    if (found == -1 && options.lineNumbers) {
-      options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
-    } else if (found > -1 && !options.lineNumbers) {
-      options.gutters = options.gutters.slice(0);
-      options.gutters.splice(found, 1);
-    }
-  }
-
-  // SCROLLBARS
-
-  // Prepare DOM reads needed to update the scrollbars. Done in one
-  // shot to minimize update/measure roundtrips.
-  function measureForScrollbars(cm) {
-    var d = cm.display, gutterW = d.gutters.offsetWidth;
-    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
-    return {
-      clientHeight: d.scroller.clientHeight,
-      viewHeight: d.wrapper.clientHeight,
-      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
-      viewWidth: d.wrapper.clientWidth,
-      barLeft: cm.options.fixedGutter ? gutterW : 0,
-      docHeight: docH,
-      scrollHeight: docH + scrollGap(cm) + d.barHeight,
-      nativeBarWidth: d.nativeBarWidth,
-      gutterWidth: gutterW
-    };
-  }
-
-  function NativeScrollbars(place, scroll, cm) {
-    this.cm = cm;
-    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
-    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
-    place(vert); place(horiz);
-
-    on(vert, "scroll", function() {
-      if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
-    });
-    on(horiz, "scroll", function() {
-      if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
-    });
-
-    this.checkedOverlay = false;
-    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
-    if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
-  }
-
-  NativeScrollbars.prototype = copyObj({
-    update: function(measure) {
-      var needsH = measure.scrollWidth > measure.clientWidth + 1;
-      var needsV = measure.scrollHeight > measure.clientHeight + 1;
-      var sWidth = measure.nativeBarWidth;
-
-      if (needsV) {
-        this.vert.style.display = "block";
-        this.vert.style.bottom = needsH ? sWidth + "px" : "0";
-        var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
-        // A bug in IE8 can cause this value to be negative, so guard it.
-        this.vert.firstChild.style.height =
-          Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
-      } else {
-        this.vert.style.display = "";
-        this.vert.firstChild.style.height = "0";
-      }
-
-      if (needsH) {
-        this.horiz.style.display = "block";
-        this.horiz.style.right = needsV ? sWidth + "px" : "0";
-        this.horiz.style.left = measure.barLeft + "px";
-        var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
-        this.horiz.firstChild.style.width =
-          (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
-      } else {
-        this.horiz.style.display = "";
-        this.horiz.firstChild.style.width = "0";
-      }
-
-      if (!this.checkedOverlay && measure.clientHeight > 0) {
-        if (sWidth == 0) this.overlayHack();
-        this.checkedOverlay = true;
-      }
-
-      return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
-    },
-    setScrollLeft: function(pos) {
-      if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
-    },
-    setScrollTop: function(pos) {
-      if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
-    },
-    overlayHack: function() {
-      var w = mac && !mac_geMountainLion ? "12px" : "18px";
-      this.horiz.style.minHeight = this.vert.style.minWidth = w;
-      var self = this;
-      var barMouseDown = function(e) {
-        if (e_target(e) != self.vert && e_target(e) != self.horiz)
-          operation(self.cm, onMouseDown)(e);
-      };
-      on(this.vert, "mousedown", barMouseDown);
-      on(this.horiz, "mousedown", barMouseDown);
-    },
-    clear: function() {
-      var parent = this.horiz.parentNode;
-      parent.removeChild(this.horiz);
-      parent.removeChild(this.vert);
-    }
-  }, NativeScrollbars.prototype);
-
-  function NullScrollbars() {}
-
-  NullScrollbars.prototype = copyObj({
-    update: function() { return {bottom: 0, right: 0}; },
-    setScrollLeft: function() {},
-    setScrollTop: function() {},
-    clear: function() {}
-  }, NullScrollbars.prototype);
-
-  CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
-
-  function initScrollbars(cm) {
-    if (cm.display.scrollbars) {
-      cm.display.scrollbars.clear();
-      if (cm.display.scrollbars.addClass)
-        rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
-    }
-
-    cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
-      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
-      // Prevent clicks in the scrollbars from killing focus
-      on(node, "mousedown", function() {
-        if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
-      });
-      node.setAttribute("cm-not-content", "true");
-    }, function(pos, axis) {
-      if (axis == "horizontal") setScrollLeft(cm, pos);
-      else setScrollTop(cm, pos);
-    }, cm);
-    if (cm.display.scrollbars.addClass)
-      addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
-  }
-
-  function updateScrollbars(cm, measure) {
-    if (!measure) measure = measureForScrollbars(cm);
-    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
-    updateScrollbarsInner(cm, measure);
-    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
-      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
-        updateHeightsInViewport(cm);
-      updateScrollbarsInner(cm, measureForScrollbars(cm));
-      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
-    }
-  }
-
-  // Re-synchronize the fake scrollbars with the actual size of the
-  // content.
-  function updateScrollbarsInner(cm, measure) {
-    var d = cm.display;
-    var sizes = d.scrollbars.update(measure);
-
-    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
-    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
-
-    if (sizes.right && sizes.bottom) {
-      d.scrollbarFiller.style.display = "block";
-      d.scrollbarFiller.style.height = sizes.bottom + "px";
-      d.scrollbarFiller.style.width = sizes.right + "px";
-    } else d.scrollbarFiller.style.display = "";
-    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
-      d.gutterFiller.style.display = "block";
-      d.gutterFiller.style.height = sizes.bottom + "px";
-      d.gutterFiller.style.width = measure.gutterWidth + "px";
-    } else d.gutterFiller.style.display = "";
-  }
-
-  // Compute the lines that are visible in a given viewport (defaults
-  // the the current scroll position). viewport may contain top,
-  // height, and ensure (see op.scrollToPos) properties.
-  function visibleLines(display, doc, viewport) {
-    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
-    top = Math.floor(top - paddingTop(display));
-    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
-
-    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
-    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
-    // forces those lines into the viewport (if possible).
-    if (viewport && viewport.ensure) {
-      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
-      if (ensureFrom < from) {
-        from = ensureFrom;
-        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
-      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
-        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
-        to = ensureTo;
-      }
-    }
-    return {from: from, to: Math.max(to, from + 1)};
-  }
-
-  // LINE NUMBERS
-
-  // Re-align line numbers and gutter marks to compensate for
-  // horizontal scrolling.
-  function alignHorizontally(cm) {
-    var display = cm.display, view = display.view;
-    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
-    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
-    var gutterW = display.gutters.offsetWidth, left = comp + "px";
-    for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
-      if (cm.options.fixedGutter && view[i].gutter)
-        view[i].gutter.style.left = left;
-      var align = view[i].alignable;
-      if (align) for (var j = 0; j < align.length; j++)
-        align[j].style.left = left;
-    }
-    if (cm.options.fixedGutter)
-      display.gutters.style.left = (comp + gutterW) + "px";
-  }
-
-  // Used to ensure that the line number gutter is still the right
-  // size for the current document size. Returns true when an update
-  // is needed.
-  function maybeUpdateLineNumberWidth(cm) {
-    if (!cm.options.lineNumbers) return false;
-    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
-    if (last.length != display.lineNumChars) {
-      var test = display.measure.appendChild(elt("div", [elt("div", last)],
-                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
-      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
-      display.lineGutter.style.width = "";
-      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
-      display.lineNumWidth = display.lineNumInnerWidth + padding;
-      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
-      display.lineGutter.style.width = display.lineNumWidth + "px";
-      updateGutterSpace(cm);
-      return true;
-    }
-    return false;
-  }
-
-  function lineNumberFor(options, i) {
-    return String(options.lineNumberFormatter(i + options.firstLineNumber));
-  }
-
-  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
-  // but using getBoundingClientRect to get a sub-pixel-accurate
-  // result.
-  function compensateForHScroll(display) {
-    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
-  }
-
-  // DISPLAY DRAWING
-
-  function DisplayUpdate(cm, viewport, force) {
-    var display = cm.display;
-
-    this.viewport = viewport;
-    // Store some values that we'll need later (but don't want to force a relayout for)
-    this.visible = visibleLines(display, cm.doc, viewport);
-    this.editorIsHidden = !display.wrapper.offsetWidth;
-    this.wrapperHeight = display.wrapper.clientHeight;
-    this.wrapperWidth = display.wrapper.clientWidth;
-    this.oldDisplayWidth = displayWidth(cm);
-    this.force = force;
-    this.dims = getDimensions(cm);
-    this.events = [];
-  }
-
-  DisplayUpdate.prototype.signal = function(emitter, type) {
-    if (hasHandler(emitter, type))
-      this.events.push(arguments);
-  };
-  DisplayUpdate.prototype.finish = function() {
-    for (var i = 0; i < this.events.length; i++)
-      signal.apply(null, this.events[i]);
-  };
-
-  function maybeClipScrollbars(cm) {
-    var display = cm.display;
-    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
-      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
-      display.heightForcer.style.height = scrollGap(cm) + "px";
-      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
-      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
-      display.scrollbarsClipped = true;
-    }
-  }
-
-  // Does the actual updating of the line display. Bails out
-  // (returning false) when there is nothing to be done and forced is
-  // false.
-  function updateDisplayIfNeeded(cm, update) {
-    var display = cm.display, doc = cm.doc;
-
-    if (update.editorIsHidden) {
-      resetView(cm);
-      return false;
-    }
-
-    // Bail out if the visible area is already rendered and nothing changed.
-    if (!update.force &&
-        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
-        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
-        display.renderedView == display.view && countDirtyView(cm) == 0)
-      return false;
-
-    if (maybeUpdateLineNumberWidth(cm)) {
-      resetView(cm);
-      update.dims = getDimensions(cm);
-    }
-
-    // Compute a suitable new viewport (from & to)
-    var end = doc.first + doc.size;
-    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
-    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
-    if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
-    if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
-    if (sawCollapsedSpans) {
-      from = visualLineNo(cm.doc, from);
-      to = visualLineEndNo(cm.doc, to);
-    }
-
-    var different = from != display.viewFrom || to != display.viewTo ||
-      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
-    adjustView(cm, from, to);
-
-    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
-    // Position the mover div to align with the current scroll position
-    cm.display.mover.style.top = display.viewOffset + "px";
-
-    var toUpdate = countDirtyView(cm);
-    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
-        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
-      return false;
-
-    // For big changes, we hide the enclosing element during the
-    // update, since that speeds up the operations on most browsers.
-    var focused = activeElt();
-    if (toUpdate > 4) display.lineDiv.style.display = "none";
-    patchDisplay(cm, display.updateLineNumbers, update.dims);
-    if (toUpdate > 4) display.lineDiv.style.display = "";
-    display.renderedView = display.view;
-    // There might have been a widget with a focused element that got
-    // hidden or updated, if so re-focus it.
-    if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
-
-    // Prevent selection and cursors from interfering with the scroll
-    // width and height.
-    removeChildren(display.cursorDiv);
-    removeChildren(display.selectionDiv);
-    display.gutters.style.height = 0;
-
-    if (different) {
-      display.lastWrapHeight = update.wrapperHeight;
-      display.lastWrapWidth = update.wrapperWidth;
-      startWorker(cm, 400);
-    }
-
-    display.updateLineNumbers = null;
-
-    return true;
-  }
-
-  function postUpdateDisplay(cm, update) {
-    var viewport = update.viewport;
-    for (var first = true;; first = false) {
-      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
-        // Clip forced viewport to actual scrollable area.
-        if (viewport && viewport.top != null)
-          viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
-        // Updated line heights might result in the drawn area not
-        // actually covering the viewport. Keep looping until it does.
-        update.visible = visibleLines(cm.display, cm.doc, viewport);
-        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
-          break;
-      }
-      if (!updateDisplayIfNeeded(cm, update)) break;
-      updateHeightsInViewport(cm);
-      var barMeasure = measureForScrollbars(cm);
-      updateSelection(cm);
-      setDocumentHeight(cm, barMeasure);
-      updateScrollbars(cm, barMeasure);
-    }
-
-    update.signal(cm, "update", cm);
-    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
-      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
-      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
-    }
-  }
-
-  function updateDisplaySimple(cm, viewport) {
-    var update = new DisplayUpdate(cm, viewport);
-    if (updateDisplayIfNeeded(cm, update)) {
-      updateHeightsInViewport(cm);
-      postUpdateDisplay(cm, update);
-      var barMeasure = measureForScrollbars(cm);
-      updateSelection(cm);
-      setDocumentHeight(cm, barMeasure);
-      updateScrollbars(cm, barMeasure);
-      update.finish();
-    }
-  }
-
-  function setDocumentHeight(cm, measure) {
-    cm.display.sizer.style.minHeight = measure.docHeight + "px";
-    var total = measure.docHeight + cm.display.barHeight;
-    cm.display.heightForcer.style.top = total + "px";
-    cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
-  }
-
-  // Read the actual heights of the rendered lines, and update their
-  // stored heights to match.
-  function updateHeightsInViewport(cm) {
-    var display = cm.display;
-    var prevBottom = display.lineDiv.offsetTop;
-    for (var i = 0; i < display.view.length; i++) {
-      var cur = display.view[i], height;
-      if (cur.hidden) continue;
-      if (ie && ie_version < 8) {
-        var bot = cur.node.offsetTop + cur.node.offsetHeight;
-        height = bot - prevBottom;
-        prevBottom = bot;
-      } else {
-        var box = cur.node.getBoundingClientRect();
-        height = box.bottom - box.top;
-      }
-      var diff = cur.line.height - height;
-      if (height < 2) height = textHeight(display);
-      if (diff > .001 || diff < -.001) {
-        updateLineHeight(cur.line, height);
-        updateWidgetHeight(cur.line);
-        if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
-          updateWidgetHeight(cur.rest[j]);
-      }
-    }
-  }
-
-  // Read and store the height of line widgets associated with the
-  // given line.
-  function updateWidgetHeight(line) {
-    if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
-      line.widgets[i].height = line.widgets[i].node.offsetHeight;
-  }
-
-  // Do a bulk-read of the DOM positions and sizes needed to draw the
-  // view, so that we don't interleave reading and writing to the DOM.
-  function getDimensions(cm) {
-    var d = cm.display, left = {}, width = {};
-    var gutterLeft = d.gutters.clientLeft;
-    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
-      left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
-      width[cm.options.gutters[i]] = n.clientWidth;
-    }
-    return {fixedPos: compensateForHScroll(d),
-            gutterTotalWidth: d.gutters.offsetWidth,
-            gutterLeft: left,
-            gutterWidth: width,
-            wrapperWidth: d.wrapper.clientWidth};
-  }
-
-  // Sync the actual display DOM structure with display.view, removing
-  // nodes for lines that are no longer in view, and creating the ones
-  // that are not there yet, and updating the ones that are out of
-  // date.
-  function patchDisplay(cm, updateNumbersFrom, dims) {
-    var display = cm.display, lineNumbers = cm.options.lineNumbers;
-    var container = display.lineDiv, cur = container.firstChild;
-
-    function rm(node) {
-      var next = node.nextSibling;
-      // Works around a throw-scroll bug in OS X Webkit
-      if (webkit && mac && cm.display.currentWheelTarget == node)
-        node.style.display = "none";
-      else
-        node.parentNode.removeChild(node);
-      return next;
-    }
-
-    var view = display.view, lineN = display.viewFrom;
-    // Loop over the elements in the view, syncing cur (the DOM nodes
-    // in display.lineDiv) with the view as we go.
-    for (var i = 0; i < view.length; i++) {
-      var lineView = view[i];
-      if (lineView.hidden) {
-      } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
-        var node = buildLineElement(cm, lineView, lineN, dims);
-        container.insertBefore(node, cur);
-      } else { // Already drawn
-        while (cur != lineView.node) cur = rm(cur);
-        var updateNumber = lineNumbers && updateNumbersFrom != null &&
-          updateNumbersFrom <= lineN && lineView.lineNumber;
-        if (lineView.changes) {
-          if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
-          updateLineForChanges(cm, lineView, lineN, dims);
-        }
-        if (updateNumber) {
-          removeChildren(lineView.lineNumber);
-          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
-        }
-        cur = lineView.node.nextSibling;
-      }
-      lineN += lineView.size;
-    }
-    while (cur) cur = rm(cur);
-  }
-
-  // When an aspect of a line changes, a string is added to
-  // lineView.changes. This updates the relevant part of the line's
-  // DOM structure.
-  function updateLineForChanges(cm, lineView, lineN, dims) {
-    for (var j = 0; j < lineView.changes.length; j++) {
-      var type = lineView.changes[j];
-      if (type == "text") updateLineText(cm, lineView);
-      else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
-      else if (type == "class") updateLineClasses(lineView);
-      else if (type == "widget") updateLineWidgets(cm, lineView, dims);
-    }
-    lineView.changes = null;
-  }
-
-  // Lines with gutter elements, widgets or a background class need to
-  // be wrapped, and have the extra elements added to the wrapper div
-  function ensureLineWrapped(lineView) {
-    if (lineView.node == lineView.text) {
-      lineView.node = elt("div", null, null, "position: relative");
-      if (lineView.text.parentNode)
-        lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
-      lineView.node.appendChild(lineView.text);
-      if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
-    }
-    return lineView.node;
-  }
-
-  function updateLineBackground(lineView) {
-    var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
-    if (cls) cls += " CodeMirror-linebackground";
-    if (lineView.background) {
-      if (cls) lineView.background.className = cls;
-      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
-    } else if (cls) {
-      var wrap = ensureLineWrapped(lineView);
-      lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
-    }
-  }
-
-  // Wrapper around buildLineContent which will reuse the structure
-  // in display.externalMeasured when possible.
-  function getLineContent(cm, lineView) {
-    var ext = cm.display.externalMeasured;
-    if (ext && ext.line == lineView.line) {
-      cm.display.externalMeasured = null;
-      lineView.measure = ext.measure;
-      return ext.built;
-    }
-    return buildLineContent(cm, lineView);
-  }
-
-  // Redraw the line's text. Interacts with the background and text
-  // classes because the mode may output tokens that influence these
-  // classes.
-  function updateLineText(cm, lineView) {
-    var cls = lineView.text.className;
-    var built = getLineContent(cm, lineView);
-    if (lineView.text == lineView.node) lineView.node = built.pre;
-    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
-    lineView.text = built.pre;
-    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
-      lineView.bgClass = built.bgClass;
-      lineView.textClass = built.textClass;
-      updateLineClasses(lineView);
-    } else if (cls) {
-      lineView.text.className = cls;
-    }
-  }
-
-  function updateLineClasses(lineView) {
-    updateLineBackground(lineView);
-    if (lineView.line.wrapClass)
-      ensureLineWrapped(lineView).className = lineView.line.wrapClass;
-    else if (lineView.node != lineView.text)
-      lineView.node.className = "";
-    var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
-    lineView.text.className = textClass || "";
-  }
-
-  function updateLineGutter(cm, lineView, lineN, dims) {
-    if (lineView.gutter) {
-      lineView.node.removeChild(lineView.gutter);
-      lineView.gutter = null;
-    }
-    var markers = lineView.line.gutterMarkers;
-    if (cm.options.lineNumbers || markers) {
-      var wrap = ensureLineWrapped(lineView);
-      var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
-                                             (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
-                                             "px; width: " + dims.gutterTotalWidth + "px");
-      cm.display.input.setUneditable(gutterWrap);
-      wrap.insertBefore(gutterWrap, lineView.text);
-      if (lineView.line.gutterClass)
-        gutterWrap.className += " " + lineView.line.gutterClass;
-      if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
-        lineView.lineNumber = gutterWrap.appendChild(
-          elt("div", lineNumberFor(cm.options, lineN),
-              "CodeMirror-linenumber CodeMirror-gutter-elt",
-              "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
-              + cm.display.lineNumInnerWidth + "px"));
-      if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
-        var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
-        if (found)
-          gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
-                                     dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
-      }
-    }
-  }
-
-  function updateLineWidgets(cm, lineView, dims) {
-    if (lineView.alignable) lineView.alignable = null;
-    for (var node = lineView.node.firstChild, next; node; node = next) {
-      var next = node.nextSibling;
-      if (node.className == "CodeMirror-linewidget")
-        lineView.node.removeChild(node);
-    }
-    insertLineWidgets(cm, lineView, dims);
-  }
-
-  // Build a line's DOM representation from scratch
-  function buildLineElement(cm, lineView, lineN, dims) {
-    var built = getLineContent(cm, lineView);
-    lineView.text = lineView.node = built.pre;
-    if (built.bgClass) lineView.bgClass = built.bgClass;
-    if (built.textClass) lineView.textClass = built.textClass;
-
-    updateLineClasses(lineView);
-    updateLineGutter(cm, lineView, lineN, dims);
-    insertLineWidgets(cm, lineView, dims);
-    return lineView.node;
-  }
-
-  // A lineView may contain multiple logical lines (when merged by
-  // collapsed spans). The widgets for all of them need to be drawn.
-  function insertLineWidgets(cm, lineView, dims) {
-    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
-    if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
-      insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
-  }
-
-  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
-    if (!line.widgets) return;
-    var wrap = ensureLineWrapped(lineView);
-    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
-      var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
-      if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
-      positionLineWidget(widget, node, lineView, dims);
-      cm.display.input.setUneditable(node);
-      if (allowAbove && widget.above)
-        wrap.insertBefore(node, lineView.gutter || lineView.text);
-      else
-        wrap.appendChild(node);
-      signalLater(widget, "redraw");
-    }
-  }
-
-  function positionLineWidget(widget, node, lineView, dims) {
-    if (widget.noHScroll) {
-      (lineView.alignable || (lineView.alignable = [])).push(node);
-      var width = dims.wrapperWidth;
-      node.style.left = dims.fixedPos + "px";
-      if (!widget.coverGutter) {
-        width -= dims.gutterTotalWidth;
-        node.style.paddingLeft = dims.gutterTotalWidth + "px";
-      }
-      node.style.width = width + "px";
-    }
-    if (widget.coverGutter) {
-      node.style.zIndex = 5;
-      node.style.position = "relative";
-      if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
-    }
-  }
-
-  // POSITION OBJECT
-
-  // A Pos instance represents a position within the text.
-  var Pos = CodeMirror.Pos = function(line, ch) {
-    if (!(this instanceof Pos)) return new Pos(line, ch);
-    this.line = line; this.ch = ch;
-  };
-
-  // Compare two positions, return 0 if they are the same, a negative
-  // number when a is less, and a positive number otherwise.
-  var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
-
-  function copyPos(x) {return Pos(x.line, x.ch);}
-  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
-  function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
-
-  // INPUT HANDLING
-
-  function ensureFocus(cm) {
-    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
-  }
-
-  function isReadOnly(cm) {
-    return cm.options.readOnly || cm.doc.cantEdit;
-  }
-
-  // This will be set to an array of strings when copying, so that,
-  // when pasting, we know what kind of selections the copied text
-  // was made out of.
-  var lastCopied = null;
-
-  function applyTextInput(cm, inserted, deleted, sel, origin) {
-    var doc = cm.doc;
-    cm.display.shift = false;
-    if (!sel) sel = doc.sel;
-
-    var textLines = splitLines(inserted), multiPaste = null;
-    // When pasing N lines into N selections, insert one line per selection
-    if (cm.state.pasteIncoming && sel.ranges.length > 1) {
-      if (lastCopied && lastCopied.join("\n") == inserted)
-        multiPaste = sel.ranges.length % lastCopied.length == 0 && map(lastCopied, splitLines);
-      else if (textLines.length == sel.ranges.length)
-        multiPaste = map(textLines, function(l) { return [l]; });
-    }
-
-    // Normal behavior is to insert the new text into every selection
-    for (var i = sel.ranges.length - 1; i >= 0; i--) {
-      var range = sel.ranges[i];
-      var from = range.from(), to = range.to();
-      if (range.empty()) {
-        if (deleted && deleted > 0) // Handle deletion
-          from = Pos(from.line, from.ch - deleted);
-        else if (cm.state.overwrite && !cm.state.pasteIncoming) // Handle overwrite
-          to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
-      }
-      var updateInput = cm.curOp.updateInput;
-      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
-                         origin: origin || (cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
-      makeChange(cm.doc, changeEvent);
-      signalLater(cm, "inputRead", cm, changeEvent);
-    }
-    if (inserted && !cm.state.pasteIncoming)
-      triggerElectric(cm, inserted);
-
-    ensureCursorVisible(cm);
-    cm.curOp.updateInput = updateInput;
-    cm.curOp.typing = true;
-    cm.state.pasteIncoming = cm.state.cutIncoming = false;
-  }
-
-  function triggerElectric(cm, inserted) {
-    // When an 'electric' character is inserted, immediately trigger a reindent
-    if (!cm.options.electricChars || !cm.options.smartIndent) return;
-    var sel = cm.doc.sel;
-
-    for (var i = sel.ranges.length - 1; i >= 0; i--) {
-      var range = sel.ranges[i];
-      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
-      var mode = cm.getModeAt(range.head);
-      var indented = false;
-      if (mode.electricChars) {
-        for (var j = 0; j < mode.electricChars.length; j++)
-          if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
-            indented = indentLine(cm, range.head.line, "smart");
-            break;
-          }
-      } else if (mode.electricInput) {
-        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
-          indented = indentLine(cm, range.head.line, "smart");
-      }
-      if (indented) signalLater(cm, "electricInput", cm, range.head.line);
-    }
-  }
-
-  function copyableRanges(cm) {
-    var text = [], ranges = [];
-    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
-      var line = cm.doc.sel.ranges[i].head.line;
-      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
-      ranges.push(lineRange);
-      text.push(cm.getRange(lineRange.anchor, lineRange.head));
-    }
-    return {text: text, ranges: ranges};
-  }
-
-  function disableBrowserMagic(field) {
-    field.setAttribute("autocorrect", "off");
-    field.setAttribute("autocapitalize", "off");
-    field.setAttribute("spellcheck", "false");
-  }
-
-  // TEXTAREA INPUT STYLE
-
-  function TextareaInput(cm) {
-    this.cm = cm;
-    // See input.poll and input.reset
-    this.prevInput = "";
-
-    // Flag that indicates whether we expect input to appear real soon
-    // now (after some event like 'keypress' or 'input') and are
-    // polling intensively.
-    this.pollingFast = false;
-    // Self-resetting timeout for the poller
-    this.polling = new Delayed();
-    // Tracks when input.reset has punted to just putting a short
-    // string into the textarea instead of the full selection.
-    this.inaccurateSelection = false;
-    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
-    this.hasSelection = false;
-    this.composing = null;
-  };
-
-  function hiddenTextarea() {
-    var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
-    var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
-    // The textarea is kept positioned near the cursor to prevent the
-    // fact that it'll be scrolled into view on input from scrolling
-    // our fake cursor out of view. On webkit, when wrap=off, paste is
-    // very slow. So make the area wide instead.
-    if (webkit) te.style.width = "1000px";
-    else te.setAttribute("wrap", "off");
-    // If border: 0; -- iOS fails to open keyboard (issue #1287)
-    if (ios) te.style.border = "1px solid black";
-    disableBrowserMagic(te);
-    return div;
-  }
-
-  TextareaInput.prototype = copyObj({
-    init: function(display) {
-      var input = this, cm = this.cm;
-
-      // Wraps and hides input textarea
-      var div = this.wrapper = hiddenTextarea();
-      // The semihidden textarea that is focused when the editor is
-      // focused, and receives input.
-      var te = this.textarea = div.firstChild;
-      display.wrapper.insertBefore(div, display.wrapper.firstChild);
-
-      // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
-      if (ios) te.style.width = "0px";
-
-      on(te, "input", function() {
-        if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
-        input.poll();
-      });
-
-      on(te, "paste", function() {
-        // Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206
-        // Add a char to the end of textarea before paste occur so that
-        // selection doesn't span to the end of textarea.
-        if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) {
-          var start = te.selectionStart, end = te.selectionEnd;
-          te.value += "$";
-          // The selection end needs to be set before the start, otherwise there
-          // can be an intermediate non-empty selection between the two, which
-          // can override the middle-click paste buffer on linux and cause the
-          // wrong thing to get pasted.
-          te.selectionEnd = end;
-          te.selectionStart = start;
-          cm.state.fakedLastChar = true;
-        }
-        cm.state.pasteIncoming = true;
-        input.fastPoll();
-      });
-
-      function prepareCopyCut(e) {
-        if (cm.somethingSelected()) {
-          lastCopied = cm.getSelections();
-          if (input.inaccurateSelection) {
-            input.prevInput = "";
-            input.inaccurateSelection = false;
-            te.value = lastCopied.join("\n");
-            selectInput(te);
-          }
-        } else if (!cm.options.lineWiseCopyCut) {
-          return;
-        } else {
-          var ranges = copyableRanges(cm);
-          lastCopied = ranges.text;
-          if (e.type == "cut") {
-            cm.setSelections(ranges.ranges, null, sel_dontScroll);
-          } else {
-            input.prevInput = "";
-            te.value = ranges.text.join("\n");
-            selectInput(te);
-          }
-        }
-        if (e.type == "cut") cm.state.cutIncoming = true;
-      }
-      on(te, "cut", prepareCopyCut);
-      on(te, "copy", prepareCopyCut);
-
-      on(display.scroller, "paste", function(e) {
-        if (eventInWidget(display, e)) return;
-        cm.state.pasteIncoming = true;
-        input.focus();
-      });
-
-      // Prevent normal selection in the editor (we handle our own)
-      on(display.lineSpace, "selectstart", function(e) {
-        if (!eventInWidget(display, e)) e_preventDefault(e);
-      });
-
-      on(te, "compositionstart", function() {
-        var start = cm.getCursor("from");
-        input.composing = {
-          start: start,
-          range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
-        };
-      });
-      on(te, "compositionend", function() {
-        if (input.composing) {
-          input.poll();
-          input.composing.range.clear();
-          input.composing = null;
-        }
-      });
-    },
-
-    prepareSelection: function() {
-      // Redraw the selection and/or cursor
-      var cm = this.cm, display = cm.display, doc = cm.doc;
-      var result = prepareSelection(cm);
-
-      // Move the hidden textarea near the cursor to prevent scrolling artifacts
-      if (cm.options.moveInputWithCursor) {
-        var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
-        var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
-        result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
-                                            headPos.top + lineOff.top - wrapOff.top));
-        result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
-                                             headPos.left + lineOff.left - wrapOff.left));
-      }
-
-      return result;
-    },
-
-    showSelection: function(drawn) {
-      var cm = this.cm, display = cm.display;
-      removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
-      removeChildrenAndAdd(display.selectionDiv, drawn.selection);
-      if (drawn.teTop != null) {
-        this.wrapper.style.top = drawn.teTop + "px";
-        this.wrapper.style.left = drawn.teLeft + "px";
-      }
-    },
-
-    // Reset the input to correspond to the selection (or to be empty,
-    // when not typing and nothing is selected)
-    reset: function(typing) {
-      if (this.contextMenuPending) return;
-      var minimal, selected, cm = this.cm, doc = cm.doc;
-      if (cm.somethingSelected()) {
-        this.prevInput = "";
-        var range = doc.sel.primary();
-        minimal = hasCopyEvent &&
-          (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
-        var content = minimal ? "-" : selected || cm.getSelection();
-        this.textarea.value = content;
-        if (cm.state.focused) selectInput(this.textarea);
-        if (ie && ie_version >= 9) this.hasSelection = content;
-      } else if (!typing) {
-        this.prevInput = this.textarea.value = "";
-        if (ie && ie_version >= 9) this.hasSelection = null;
-      }
-      this.inaccurateSelection = minimal;
-    },
-
-    getField: function() { return this.textarea; },
-
-    supportsTouch: function() { return false; },
-
-    focus: function() {
-      if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
-        try { this.textarea.focus(); }
-        catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
-      }
-    },
-
-    blur: function() { this.textarea.blur(); },
-
-    resetPosition: function() {
-      this.wrapper.style.top = this.wrapper.style.left = 0;
-    },
-
-    receivedFocus: function() { this.slowPoll(); },
-
-    // Poll for input changes, using the normal rate of polling. This
-    // runs as long as the editor is focused.
-    slowPoll: function() {
-      var input = this;
-      if (input.pollingFast) return;
-      input.polling.set(this.cm.options.pollInterval, function() {
-        input.poll();
-        if (input.cm.state.focused) input.slowPoll();
-      });
-    },
-
-    // When an event has just come in that is likely to add or change
-    // something in the input textarea, we poll faster, to ensure that
-    // the change appears on the screen quickly.
-    fastPoll: function() {
-      var missed = false, input = this;
-      input.pollingFast = true;
-      function p() {
-        var changed = input.poll();
-        if (!changed && !missed) {missed = true; input.polling.set(60, p);}
-        else {input.pollingFast = false; input.slowPoll();}
-      }
-      input.polling.set(20, p);
-    },
-
-    // Read input from the textarea, and update the document to match.
-    // When something is selected, it is present in the textarea, and
-    // selected (unless it is huge, in which case a placeholder is
-    // used). When nothing is selected, the cursor sits after previously
-    // seen text (can be empty), which is stored in prevInput (we must
-    // not reset the textarea when typing, because that breaks IME).
-    poll: function() {
-      var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
-      // Since this is called a *lot*, try to bail out as cheaply as
-      // possible when it is clear that nothing happened. hasSelection
-      // will be the case when there is a lot of text in the textarea,
-      // in which case reading its value would be expensive.
-      if (!cm.state.focused || (hasSelection(input) && !prevInput) ||
-          isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)
-        return false;
-      // See paste handler for more on the fakedLastChar kludge
-      if (cm.state.pasteIncoming && cm.state.fakedLastChar) {
-        input.value = input.value.substring(0, input.value.length - 1);
-        cm.state.fakedLastChar = false;
-      }
-      var text = input.value;
-      // If nothing changed, bail.
-      if (text == prevInput && !cm.somethingSelected()) return false;
-      // Work around nonsensical selection resetting in IE9/10, and
-      // inexplicable appearance of private area unicode characters on
-      // some key combos in Mac (#2689).
-      if (ie && ie_version >= 9 && this.hasSelection === text ||
-          mac && /[\uf700-\uf7ff]/.test(text)) {
-        cm.display.input.reset();
-        return false;
-      }
-
-      if (cm.doc.sel == cm.display.selForContextMenu) {
-        var first = text.charCodeAt(0);
-        if (first == 0x200b && !prevInput) prevInput = "\u200b";
-        if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
-      }
-      // Find the part of the input that is actually new
-      var same = 0, l = Math.min(prevInput.length, text.length);
-      while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
-
-      var self = this;
-      runInOp(cm, function() {
-        applyTextInput(cm, text.slice(same), prevInput.length - same,
-                       null, self.composing ? "*compose" : null);
-
-        // Don't leave long text in the textarea, since it makes further polling slow
-        if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
-        else self.prevInput = text;
-
-        if (self.composing) {
-          self.composing.range.clear();
-          self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
-                                             {className: "CodeMirror-composing"});
-        }
-      });
-      return true;
-    },
-
-    ensurePolled: function() {
-      if (this.pollingFast && this.poll()) this.pollingFast = false;
-    },
-
-    onKeyPress: function() {
-      if (ie && ie_version >= 9) this.hasSelection = null;
-      this.fastPoll();
-    },
-
-    onContextMenu: function(e) {
-      var input = this, cm = input.cm, display = cm.display, te = input.textarea;
-      var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
-      if (!pos || presto) return; // Opera is difficult.
-
-      // Reset the current text selection only if the click is done outside of the selection
-      // and 'resetSelectionOnContextMenu' option is true.
-      var reset = cm.options.resetSelectionOnContextMenu;
-      if (reset && cm.doc.sel.contains(pos) == -1)
-        operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
-
-      var oldCSS = te.style.cssText;
-      input.wrapper.style.position = "absolute";
-      te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
-        "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
-        (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
-        "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
-      if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
-      display.input.focus();
-      if (webkit) window.scrollTo(null, oldScrollY);
-      display.input.reset();
-      // Adds "Select all" to context menu in FF
-      if (!cm.somethingSelected()) te.value = input.prevInput = " ";
-      input.contextMenuPending = true;
-      display.selForContextMenu = cm.doc.sel;
-      clearTimeout(display.detectingSelectAll);
-
-      // Select-all will be greyed out if there's nothing to select, so
-      // this adds a zero-width space so that we can later check whether
-      // it got selected.
-      function prepareSelectAllHack() {
-        if (te.selectionStart != null) {
-          var selected = cm.somethingSelected();
-          var extval = "\u200b" + (selected ? te.value : "");
-          te.value = "\u21da"; // Used to catch context-menu undo
-          te.value = extval;
-          input.prevInput = selected ? "" : "\u200b";
-          te.selectionStart = 1; te.selectionEnd = extval.length;
-          // Re-set this, in case some other handler touched the
-          // selection in the meantime.
-          display.selForContextMenu = cm.doc.sel;
-        }
-      }
-      function rehide() {
-        input.contextMenuPending = false;
-        input.wrapper.style.position = "relative";
-        te.style.cssText = oldCSS;
-        if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
-
-        // Try to detect the user choosing select-all
-        if (te.selectionStart != null) {
-          if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
-          var i = 0, poll = function() {
-            if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
-                te.selectionEnd > 0 && input.prevInput == "\u200b")
-              operation(cm, commands.selectAll)(cm);
-            else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
-            else display.input.reset();
-          };
-          display.detectingSelectAll = setTimeout(poll, 200);
-        }
-      }
-
-      if (ie && ie_version >= 9) prepareSelectAllHack();
-      if (captureRightClick) {
-        e_stop(e);
-        var mouseup = function() {
-          off(window, "mouseup", mouseup);
-          setTimeout(rehide, 20);
-        };
-        on(window, "mouseup", mouseup);
-      } else {
-        setTimeout(rehide, 50);
-      }
-    },
-
-    setUneditable: nothing,
-
-    needsContentAttribute: false
-  }, TextareaInput.prototype);
-
-  // CONTENTEDITABLE INPUT STYLE
-
-  function ContentEditableInput(cm) {
-    this.cm = cm;
-    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
-    this.polling = new Delayed();
-    this.gracePeriod = false;
-  }
-
-  ContentEditableInput.prototype = copyObj({
-    init: function(display) {
-      var input = this, cm = input.cm;
-      var div = input.div = display.lineDiv;
-      div.contentEditable = "true";
-      disableBrowserMagic(div);
-
-      on(div, "paste", function(e) {
-        var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
-        if (pasted) {
-          e.preventDefault();
-          cm.replaceSelection(pasted, null, "paste");
-        }
-      });
-
-      on(div, "compositionstart", function(e) {
-        var data = e.data;
-        input.composing = {sel: cm.doc.sel, data: data, startData: data};
-        if (!data) return;
-        var prim = cm.doc.sel.primary();
-        var line = cm.getLine(prim.head.line);
-        var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
-        if (found > -1 && found <= prim.head.ch)
-          input.composing.sel = simpleSelection(Pos(prim.head.line, found),
-                                                Pos(prim.head.line, found + data.length));
-      });
-      on(div, "compositionupdate", function(e) {
-        input.composing.data = e.data;
-      });
-      on(div, "compositionend", function(e) {
-        var ours = input.composing;
-        if (!ours) return;
-        if (e.data != ours.startData && !/\u200b/.test(e.data))
-          ours.data = e.data;
-        // Need a small delay to prevent other code (input event,
-        // selection polling) from doing damage when fired right after
-        // compositionend.
-        setTimeout(function() {
-          if (!ours.handled)
-            input.applyComposition(ours);
-          if (input.composing == ours)
-            input.composing = null;
-        }, 50);
-      });
-
-      on(div, "touchstart", function() {
-        input.forceCompositionEnd();
-      });
-
-      on(div, "input", function() {
-        if (input.composing) return;
-        if (!input.pollContent())
-          runInOp(input.cm, function() {regChange(cm);});
-      });
-
-      function onCopyCut(e) {
-        if (cm.somethingSelected()) {
-          lastCopied = cm.getSelections();
-          if (e.type == "cut") cm.replaceSelection("", null, "cut");
-        } else if (!cm.options.lineWiseCopyCut) {
-          return;
-        } else {
-          var ranges = copyableRanges(cm);
-          lastCopied = ranges.text;
-          if (e.type == "cut") {
-            cm.operation(function() {
-              cm.setSelections(ranges.ranges, 0, sel_dontScroll);
-              cm.replaceSelection("", null, "cut");
-            });
-          }
-        }
-        // iOS exposes the clipboard API, but seems to discard content inserted into it
-        if (e.clipboardData && !ios) {
-          e.preventDefault();
-          e.clipboardData.clearData();
-          e.clipboardData.setData("text/plain", lastCopied.join("\n"));
-        } else {
-          // Old-fashioned briefly-focus-a-textarea hack
-          var kludge = hiddenTextarea(), te = kludge.firstChild;
-          cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
-          te.value = lastCopied.join("\n");
-          var hadFocus = document.activeElement;
-          selectInput(te);
-          setTimeout(function() {
-            cm.display.lineSpace.removeChild(kludge);
-            hadFocus.focus();
-          }, 50);
-        }
-      }
-      on(div, "copy", onCopyCut);
-      on(div, "cut", onCopyCut);
-    },
-
-    prepareSelection: function() {
-      var result = prepareSelection(this.cm, false);
-      result.focus = this.cm.state.focused;
-      return result;
-    },
-
-    showSelection: function(info) {
-      if (!info || !this.cm.display.view.length) return;
-      if (info.focus) this.showPrimarySelection();
-      this.showMultipleSelections(info);
-    },
-
-    showPrimarySelection: function() {
-      var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
-      var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
-      var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
-      if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
-          cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
-          cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
-        return;
-
-      var start = posToDOM(this.cm, prim.from());
-      var end = posToDOM(this.cm, prim.to());
-      if (!start && !end) return;
-
-      var view = this.cm.display.view;
-      var old = sel.rangeCount && sel.getRangeAt(0);
-      if (!start) {
-        start = {node: view[0].measure.map[2], offset: 0};
-      } else if (!end) { // FIXME dangerously hacky
-        var measure = view[view.length - 1].measure;
-        var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
-        end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
-      }
-
-      try { var rng = range(start.node, start.offset, end.offset, end.node); }
-      catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
-      if (rng) {
-        sel.removeAllRanges();
-        sel.addRange(rng);
-        if (old && sel.anchorNode == null) sel.addRange(old);
-        else if (gecko) this.startGracePeriod();
-      }
-      this.rememberSelection();
-    },
-
-    startGracePeriod: function() {
-      var input = this;
-      clearTimeout(this.gracePeriod);
-      this.gracePeriod = setTimeout(function() {
-        input.gracePeriod = false;
-        if (input.selectionChanged())
-          input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
-      }, 20);
-    },
-
-    showMultipleSelections: function(info) {
-      removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
-      removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
-    },
-
-    rememberSelection: function() {
-      var sel = window.getSelection();
-      this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
-      this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
-    },
-
-    selectionInEditor: function() {
-      var sel = window.getSelection();
-      if (!sel.rangeCount) return false;
-      var node = sel.getRangeAt(0).commonAncestorContainer;
-      return contains(this.div, node);
-    },
-
-    focus: function() {
-      if (this.cm.options.readOnly != "nocursor") this.div.focus();
-    },
-    blur: function() { this.div.blur(); },
-    getField: function() { return this.div; },
-
-    supportsTouch: function() { return true; },
-
-    receivedFocus: function() {
-      var input = this;
-      if (this.selectionInEditor())
-        this.pollSelection();
-      else
-        runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
-
-      function poll() {
-        if (input.cm.state.focused) {
-          input.pollSelection();
-          input.polling.set(input.cm.options.pollInterval, poll);
-        }
-      }
-      this.polling.set(this.cm.options.pollInterval, poll);
-    },
-
-    selectionChanged: function() {
-      var sel = window.getSelection();
-      return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
-        sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
-    },
-
-    pollSelection: function() {
-      if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
-        var sel = window.getSelection(), cm = this.cm;
-        this.rememberSelection();
-        var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
-        var head = domToPos(cm, sel.focusNode, sel.focusOffset);
-        if (anchor && head) runInOp(cm, function() {
-          setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
-          if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
-        });
-      }
-    },
-
-    pollContent: function() {
-      var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
-      var from = sel.from(), to = sel.to();
-      if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
-
-      var fromIndex;
-      if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
-        var fromLine = lineNo(display.view[0].line);
-        var fromNode = display.view[0].node;
-      } else {
-        var fromLine = lineNo(display.view[fromIndex].line);
-        var fromNode = display.view[fromIndex - 1].node.nextSibling;
-      }
-      var toIndex = findViewIndex(cm, to.line);
-      if (toIndex == display.view.length - 1) {
-        var toLine = display.viewTo - 1;
-        var toNode = display.view[toIndex].node;
-      } else {
-        var toLine = lineNo(display.view[toIndex + 1].line) - 1;
-        var toNode = display.view[toIndex + 1].node.previousSibling;
-      }
-
-      var newText = splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
-      var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
-      while (newText.length > 1 && oldText.length > 1) {
-        if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
-        else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
-        else break;
-      }
-
-      var cutFront = 0, cutEnd = 0;
-      var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
-      while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
-        ++cutFront;
-      var newBot = lst(newText), oldBot = lst(oldText);
-      var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
-                               oldBot.length - (oldText.length == 1 ? cutFront : 0));
-      while (cutEnd < maxCutEnd &&
-             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
-        ++cutEnd;
-
-      newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
-      newText[0] = newText[0].slice(cutFront);
-
-      var chFrom = Pos(fromLine, cutFront);
-      var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
-      if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
-        replaceRange(cm.doc, newText, chFrom, chTo, "+input");
-        return true;
-      }
-    },
-
-    ensurePolled: function() {
-      this.forceCompositionEnd();
-    },
-    reset: function() {
-      this.forceCompositionEnd();
-    },
-    forceCompositionEnd: function() {
-      if (!this.composing || this.composing.handled) return;
-      this.applyComposition(this.composing);
-      this.composing.handled = true;
-      this.div.blur();
-      this.div.focus();
-    },
-    applyComposition: function(composing) {
-      if (composing.data && composing.data != composing.startData)
-        operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
-    },
-
-    setUneditable: function(node) {
-      node.setAttribute("contenteditable", "false");
-    },
-
-    onKeyPress: function(e) {
-      e.preventDefault();
-      operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
-    },
-
-    onContextMenu: nothing,
-    resetPosition: nothing,
-
-    needsContentAttribute: true
-  }, ContentEditableInput.prototype);
-
-  function posToDOM(cm, pos) {
-    var view = findViewForLine(cm, pos.line);
-    if (!view || view.hidden) return null;
-    var line = getLine(cm.doc, pos.line);
-    var info = mapFromLineView(view, line, pos.line);
-
-    var order = getOrder(line), side = "left";
-    if (order) {
-      var partPos = getBidiPartAt(order, pos.ch);
-      side = partPos % 2 ? "right" : "left";
-    }
-    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
-    result.offset = result.collapse == "right" ? result.end : result.start;
-    return result;
-  }
-
-  function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
-
-  function domToPos(cm, node, offset) {
-    var lineNode;
-    if (node == cm.display.lineDiv) {
-      lineNode = cm.display.lineDiv.childNodes[offset];
-      if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
-      node = null; offset = 0;
-    } else {
-      for (lineNode = node;; lineNode = lineNode.parentNode) {
-        if (!lineNode || lineNode == cm.display.lineDiv) return null;
-        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
-      }
-    }
-    for (var i = 0; i < cm.display.view.length; i++) {
-      var lineView = cm.display.view[i];
-      if (lineView.node == lineNode)
-        return locateNodeInLineView(lineView, node, offset);
-    }
-  }
-
-  function locateNodeInLineView(lineView, node, offset) {
-    var wrapper = lineView.text.firstChild, bad = false;
-    if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
-    if (node == wrapper) {
-      bad = true;
-      node = wrapper.childNodes[offset];
-      offset = 0;
-      if (!node) {
-        var line = lineView.rest ? lst(lineView.rest) : lineView.line;
-        return badPos(Pos(lineNo(line), line.text.length), bad);
-      }
-    }
-
-    var textNode = node.nodeType == 3 ? node : null, topNode = node;
-    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
-      textNode = node.firstChild;
-      if (offset) offset = textNode.nodeValue.length;
-    }
-    while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
-    var measure = lineView.measure, maps = measure.maps;
-
-    function find(textNode, topNode, offset) {
-      for (var i = -1; i < (maps ? maps.length : 0); i++) {
-        var map = i < 0 ? measure.map : maps[i];
-        for (var j = 0; j < map.length; j += 3) {
-          var curNode = map[j + 2];
-          if (curNode == textNode || curNode == topNode) {
-            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
-            var ch = map[j] + offset;
-            if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
-            return Pos(line, ch);
-          }
-        }
-      }
-    }
-    var found = find(textNode, topNode, offset);
-    if (found) return badPos(found, bad);
-
-    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
-    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
-      found = find(after, after.firstChild, 0);
-      if (found)
-        return badPos(Pos(found.line, found.ch - dist), bad);
-      else
-        dist += after.textContent.length;
-    }
-    for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
-      found = find(before, before.firstChild, -1);
-      if (found)
-        return badPos(Pos(found.line, found.ch + dist), bad);
-      else
-        dist += after.textContent.length;
-    }
-  }
-
-  function domTextBetween(cm, from, to, fromLine, toLine) {
-    var text = "", closing = false;
-    function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
-    function walk(node) {
-      if (node.nodeType == 1) {
-        var cmText = node.getAttribute("cm-text");
-        if (cmText != null) {
-          if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
-          text += cmText;
-          return;
-        }
-        var markerID = node.getAttribute("cm-marker"), range;
-        if (markerID) {
-          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
-          if (found.length && (range = found[0].find()))
-            text += getBetween(cm.doc, range.from, range.to).join("\n");
-          return;
-        }
-        if (node.getAttribute("contenteditable") == "false") return;
-        for (var i = 0; i < node.childNodes.length; i++)
-          walk(node.childNodes[i]);
-        if (/^(pre|div|p)$/i.test(node.nodeName))
-          closing = true;
-      } else if (node.nodeType == 3) {
-        var val = node.nodeValue;
-        if (!val) return;
-        if (closing) {
-          text += "\n";
-          closing = false;
-        }
-        text += val;
-      }
-    }
-    for (;;) {
-      walk(from);
-      if (from == to) break;
-      from = from.nextSibling;
-    }
-    return text;
-  }
-
-  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
-
-  // SELECTION / CURSOR
-
-  // Selection objects are immutable. A new one is created every time
-  // the selection changes. A selection is one or more non-overlapping
-  // (and non-touching) ranges, sorted, and an integer that indicates
-  // which one is the primary selection (the one that's scrolled into
-  // view, that getCursor returns, etc).
-  function Selection(ranges, primIndex) {
-    this.ranges = ranges;
-    this.primIndex = primIndex;
-  }
-
-  Selection.prototype = {
-    primary: function() { return this.ranges[this.primIndex]; },
-    equals: function(other) {
-      if (other == this) return true;
-      if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
-      for (var i = 0; i < this.ranges.length; i++) {
-        var here = this.ranges[i], there = other.ranges[i];
-        if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
-      }
-      return true;
-    },
-    deepCopy: function() {
-      for (var out = [], i = 0; i < this.ranges.length; i++)
-        out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
-      return new Selection(out, this.primIndex);
-    },
-    somethingSelected: function() {
-      for (var i = 0; i < this.ranges.length; i++)
-        if (!this.ranges[i].empty()) return true;
-      return false;
-    },
-    contains: function(pos, end) {
-      if (!end) end = pos;
-      for (var i = 0; i < this.ranges.length; i++) {
-        var range = this.ranges[i];
-        if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
-          return i;
-      }
-      return -1;
-    }
-  };
-
-  function Range(anchor, head) {
-    this.anchor = anchor; this.head = head;
-  }
-
-  Range.prototype = {
-    from: function() { return minPos(this.anchor, this.head); },
-    to: function() { return maxPos(this.anchor, this.head); },
-    empty: function() {
-      return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
-    }
-  };
-
-  // Take an unsorted, potentially overlapping set of ranges, and
-  // build a selection out of it. 'Consumes' ranges array (modifying
-  // it).
-  function normalizeSelection(ranges, primIndex) {
-    var prim = ranges[primIndex];
-    ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
-    primIndex = indexOf(ranges, prim);
-    for (var i = 1; i < ranges.length; i++) {
-      var cur = ranges[i], prev = ranges[i - 1];
-      if (cmp(prev.to(), cur.from()) >= 0) {
-        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
-        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
-        if (i <= primIndex) --primIndex;
-        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
-      }
-    }
-    return new Selection(ranges, primIndex);
-  }
-
-  function simpleSelection(anchor, head) {
-    return new Selection([new Range(anchor, head || anchor)], 0);
-  }
-
-  // Most of the external API clips given positions to make sure they
-  // actually exist within the document.
-  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
-  function clipPos(doc, pos) {
-    if (pos.line < doc.first) return Pos(doc.first, 0);
-    var last = doc.first + doc.size - 1;
-    if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
-    return clipToLen(pos, getLine(doc, pos.line).text.length);
-  }
-  function clipToLen(pos, linelen) {
-    var ch = pos.ch;
-    if (ch == null || ch > linelen) return Pos(pos.line, linelen);
-    else if (ch < 0) return Pos(pos.line, 0);
-    else return pos;
-  }
-  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
-  function clipPosArray(doc, array) {
-    for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
-    return out;
-  }
-
-  // SELECTION UPDATES
-
-  // The 'scroll' parameter given to many of these indicated whether
-  // the new cursor position should be scrolled into view after
-  // modifying the selection.
-
-  // If shift is held or the extend flag is set, extends a range to
-  // include a given position (and optionally a second position).
-  // Otherwise, simply returns the range between the given positions.
-  // Used for cursor motion and such.
-  function extendRange(doc, range, head, other) {
-    if (doc.cm && doc.cm.display.shift || doc.extend) {
-      var anchor = range.anchor;
-      if (other) {
-        var posBefore = cmp(head, anchor) < 0;
-        if (posBefore != (cmp(other, anchor) < 0)) {
-          anchor = head;
-          head = other;
-        } else if (posBefore != (cmp(head, other) < 0)) {
-          head = other;
-        }
-      }
-      return new Range(anchor, head);
-    } else {
-      return new Range(other || head, head);
-    }
-  }
-
-  // Extend the primary selection range, discard the rest.
-  function extendSelection(doc, head, other, options) {
-    setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
-  }
-
-  // Extend all selections (pos is an array of selections with length
-  // equal the number of selections)
-  function extendSelections(doc, heads, options) {
-    for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
-      out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
-    var newSel = normalizeSelection(out, doc.sel.primIndex);
-    setSelection(doc, newSel, options);
-  }
-
-  // Updates a single range in the selection.
-  function replaceOneSelection(doc, i, range, options) {
-    var ranges = doc.sel.ranges.slice(0);
-    ranges[i] = range;
-    setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
-  }
-
-  // Reset the selection to a single range.
-  function setSimpleSelection(doc, anchor, head, options) {
-    setSelection(doc, simpleSelection(anchor, head), options);
-  }
-
-  // Give beforeSelectionChange handlers a change to influence a
-  // selection update.
-  function filterSelectionChange(doc, sel) {
-    var obj = {
-      ranges: sel.ranges,
-      update: function(ranges) {
-        this.ranges = [];
-        for (var i = 0; i < ranges.length; i++)
-          this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
-                                     clipPos(doc, ranges[i].head));
-      }
-    };
-    signal(doc, "beforeSelectionChange", doc, obj);
-    if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
-    if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
-    else return sel;
-  }
-
-  function setSelectionReplaceHistory(doc, sel, options) {
-    var done = doc.history.done, last = lst(done);
-    if (last && last.ranges) {
-      done[done.length - 1] = sel;
-      setSelectionNoUndo(doc, sel, options);
-    } else {
-      setSelection(doc, sel, options);
-    }
-  }
-
-  // Set a new selection.
-  function setSelection(doc, sel, options) {
-    setSelectionNoUndo(doc, sel, options);
-    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
-  }
-
-  function setSelectionNoUndo(doc, sel, options) {
-    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
-      sel = filterSelectionChange(doc, sel);
-
-    var bias = options && options.bias ||
-      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
-    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
-
-    if (!(options && options.scroll === false) && doc.cm)
-      ensureCursorVisible(doc.cm);
-  }
-
-  function setSelectionInner(doc, sel) {
-    if (sel.equals(doc.sel)) return;
-
-    doc.sel = sel;
-
-    if (doc.cm) {
-      doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
-      signalCursorActivity(doc.cm);
-    }
-    signalLater(doc, "cursorActivity", doc);
-  }
-
-  // Verify that the selection does not partially select any atomic
-  // marked ranges.
-  function reCheckSelection(doc) {
-    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
-  }
-
-  // Return a selection that does not partially select any atomic
-  // ranges.
-  function skipAtomicInSelection(doc, sel, bias, mayClear) {
-    var out;
-    for (var i = 0; i < sel.ranges.length; i++) {
-      var range = sel.ranges[i];
-      var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
-      var newHead = skipAtomic(doc, range.head, bias, mayClear);
-      if (out || newAnchor != range.anchor || newHead != range.head) {
-        if (!out) out = sel.ranges.slice(0, i);
-        out[i] = new Range(newAnchor, newHead);
-      }
-    }
-    return out ? normalizeSelection(out, sel.primIndex) : sel;
-  }
-
-  // Ensure a given position is not inside an atomic range.
-  function skipAtomic(doc, pos, bias, mayClear) {
-    var flipped = false, curPos = pos;
-    var dir = bias || 1;
-    doc.cantEdit = false;
-    search: for (;;) {
-      var line = getLine(doc, curPos.line);
-      if (line.markedSpans) {
-        for (var i = 0; i < line.markedSpans.length; ++i) {
-          var sp = line.markedSpans[i], m = sp.marker;
-          if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
-              (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
-            if (mayClear) {
-              signal(m, "beforeCursorEnter");
-              if (m.explicitlyCleared) {
-                if (!line.markedSpans) break;
-                else {--i; continue;}
-              }
-            }
-            if (!m.atomic) continue;
-            var newPos = m.find(dir < 0 ? -1 : 1);
-            if (cmp(newPos, curPos) == 0) {
-              newPos.ch += dir;
-              if (newPos.ch < 0) {
-                if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
-                else newPos = null;
-              } else if (newPos.ch > line.text.length) {
-                if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
-                else newPos = null;
-              }
-              if (!newPos) {
-                if (flipped) {
-                  // Driven in a corner -- no valid cursor position found at all
-                  // -- try again *with* clearing, if we didn't already
-                  if (!mayClear) return skipAtomic(doc, pos, bias, true);
-                  // Otherwise, turn off editing until further notice, and return the start of the doc
-                  doc.cantEdit = true;
-                  return Pos(doc.first, 0);
-                }
-                flipped = true; newPos = pos; dir = -dir;
-              }
-            }
-            curPos = newPos;
-            continue search;
-          }
-        }
-      }
-      return curPos;
-    }
-  }
-
-  // SELECTION DRAWING
-
-  function updateSelection(cm) {
-    cm.display.input.showSelection(cm.display.input.prepareSelection());
-  }
-
-  function prepareSelection(cm, primary) {
-    var doc = cm.doc, result = {};
-    var curFragment = result.cursors = document.createDocumentFragment();
-    var selFragment = result.selection = document.createDocumentFragment();
-
-    for (var i = 0; i < doc.sel.ranges.length; i++) {
-      if (primary === false && i == doc.sel.primIndex) continue;
-      var range = doc.sel.ranges[i];
-      var collapsed = range.empty();
-      if (collapsed || cm.options.showCursorWhenSelecting)
-        drawSelectionCursor(cm, range, curFragment);
-      if (!collapsed)
-        drawSelectionRange(cm, range, selFragment);
-    }
-    return result;
-  }
-
-  // Draws a cursor for the given range
-  function drawSelectionCursor(cm, range, output) {
-    var pos = cursorCoords(cm, range.head, "div", null, null, !cm.options.singleCursorHeightPerLine);
-
-    var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
-    cursor.style.left = pos.left + "px";
-    cursor.style.top = pos.top + "px";
-    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
-
-    if (pos.other) {
-      // Secondary cursor, shown when on a 'jump' in bi-directional text
-      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
-      otherCursor.style.display = "";
-      otherCursor.style.left = pos.other.left + "px";
-      otherCursor.style.top = pos.other.top + "px";
-      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
-    }
-  }
-
-  // Draws the given range as a highlighted selection
-  function drawSelectionRange(cm, range, output) {
-    var display = cm.display, doc = cm.doc;
-    var fragment = document.createDocumentFragment();
-    var padding = paddingH(cm.display), leftSide = padding.left;
-    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
-
-    function add(left, top, width, bottom) {
-      if (top < 0) top = 0;
-      top = Math.round(top);
-      bottom = Math.round(bottom);
-      fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
-                               "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
-                               "px; height: " + (bottom - top) + "px"));
-    }
-
-    function drawForLine(line, fromArg, toArg) {
-      var lineObj = getLine(doc, line);
-      var lineLen = lineObj.text.length;
-      var start, end;
-      function coords(ch, bias) {
-        return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
-      }
-
-      iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
-        var leftPos = coords(from, "left"), rightPos, left, right;
-        if (from == to) {
-          rightPos = leftPos;
-          left = right = leftPos.left;
-        } else {
-          rightPos = coords(to - 1, "right");
-          if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
-          left = leftPos.left;
-          right = rightPos.right;
-        }
-        if (fromArg == null && from == 0) left = leftSide;
-        if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
-          add(left, leftPos.top, null, leftPos.bottom);
-          left = leftSide;
-          if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
-        }
-        if (toArg == null && to == lineLen) right = rightSide;
-        if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
-          start = leftPos;
-        if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
-          end = rightPos;
-        if (left < leftSide + 1) left = leftSide;
-        add(left, rightPos.top, right - left, rightPos.bottom);
-      });
-      return {start: start, end: end};
-    }
-
-    var sFrom = range.from(), sTo = range.to();
-    if (sFrom.line == sTo.line) {
-      drawForLine(sFrom.line, sFrom.ch, sTo.ch);
-    } else {
-      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
-      var singleVLine = visualLine(fromLine) == visualLine(toLine);
-      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
-      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
-      if (singleVLine) {
-        if (leftEnd.top < rightStart.top - 2) {
-          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
-          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
-        } else {
-          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
-        }
-      }
-      if (leftEnd.bottom < rightStart.top)
-        add(leftSide, leftEnd.bottom, null, rightStart.top);
-    }
-
-    output.appendChild(fragment);
-  }
-
-  // Cursor-blinking
-  function restartBlink(cm) {
-    if (!cm.state.focused) return;
-    var display = cm.display;
-    clearInterval(display.blinker);
-    var on = true;
-    display.cursorDiv.style.visibility = "";
-    if (cm.options.cursorBlinkRate > 0)
-      display.blinker = setInterval(function() {
-        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
-      }, cm.options.cursorBlinkRate);
-    else if (cm.options.cursorBlinkRate < 0)
-      display.cursorDiv.style.visibility = "hidden";
-  }
-
-  // HIGHLIGHT WORKER
-
-  function startWorker(cm, time) {
-    if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
-      cm.state.highlight.set(time, bind(highlightWorker, cm));
-  }
-
-  function highlightWorker(cm) {
-    var doc = cm.doc;
-    if (doc.frontier < doc.first) doc.frontier = doc.first;
-    if (doc.frontier >= cm.display.viewTo) return;
-    var end = +new Date + cm.options.workTime;
-    var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
-    var changedLines = [];
-
-    doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
-      if (doc.frontier >= cm.display.viewFrom) { // Visible
-        var oldStyles = line.styles;
-        var highlighted = highlightLine(cm, line, state, true);
-        line.styles = highlighted.styles;
-        var oldCls = line.styleClasses, newCls = highlighted.classes;
-        if (newCls) line.styleClasses = newCls;
-        else if (oldCls) line.styleClasses = null;
-        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
-          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
-        for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
-        if (ischange) changedLines.push(doc.frontier);
-        line.stateAfter = copyState(doc.mode, state);
-      } else {
-        processLine(cm, line.text, state);
-        line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
-      }
-      ++doc.frontier;
-      if (+new Date > end) {
-        startWorker(cm, cm.options.workDelay);
-        return true;
-      }
-    });
-    if (changedLines.length) runInOp(cm, function() {
-      for (var i = 0; i < changedLines.length; i++)
-        regLineChange(cm, changedLines[i], "text");
-    });
-  }
-
-  // Finds the line to start with when starting a parse. Tries to
-  // find a line with a stateAfter, so that it can start with a
-  // valid state. If that fails, it returns the line with the
-  // smallest indentation, which tends to need the least context to
-  // parse correctly.
-  function findStartLine(cm, n, precise) {
-    var minindent, minline, doc = cm.doc;
-    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
-    for (var search = n; search > lim; --search) {
-      if (search <= doc.first) return doc.first;
-      var line = getLine(doc, search - 1);
-      if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
-      var indented = countColumn(line.text, null, cm.options.tabSize);
-      if (minline == null || minindent > indented) {
-        minline = search - 1;
-        minindent = indented;
-      }
-    }
-    return minline;
-  }
-
-  function getStateBefore(cm, n, precise) {
-    var doc = cm.doc, display = cm.display;
-    if (!doc.mode.startState) return true;
-    var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
-    if (!state) state = startState(doc.mode);
-    else state = copyState(doc.mode, state);
-    doc.iter(pos, n, function(line) {
-      processLine(cm, line.text, state);
-      var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
-      line.stateAfter = save ? copyState(doc.mode, state) : null;
-      ++pos;
-    });
-    if (precise) doc.frontier = pos;
-    return state;
-  }
-
-  // POSITION MEASUREMENT
-
-  function paddingTop(display) {return display.lineSpace.offsetTop;}
-  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
-  function paddingH(display) {
-    if (display.cachedPaddingH) return display.cachedPaddingH;
-    var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
-    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
-    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
-    if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
-    return data;
-  }
-
-  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
-  function displayWidth(cm) {
-    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
-  }
-  function displayHeight(cm) {
-    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
-  }
-
-  // Ensure the lineView.wrapping.heights array is populated. This is
-  // an array of bottom offsets for the lines that make up a drawn
-  // line. When lineWrapping is on, there might be more than one
-  // height.
-  function ensureLineHeights(cm, lineView, rect) {
-    var wrapping = cm.options.lineWrapping;
-    var curWidth = wrapping && displayWidth(cm);
-    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
-      var heights = lineView.measure.heights = [];
-      if (wrapping) {
-        lineView.measure.width = curWidth;
-        var rects = lineView.text.firstChild.getClientRects();
-        for (var i = 0; i < rects.length - 1; i++) {
-          var cur = rects[i], next = rects[i + 1];
-          if (Math.abs(cur.bottom - next.bottom) > 2)
-            heights.push((cur.bottom + next.top) / 2 - rect.top);
-        }
-      }
-      heights.push(rect.bottom - rect.top);
-    }
-  }
-
-  // Find a line map (mapping character offsets to text nodes) and a
-  // measurement cache for the given line number. (A line view might
-  // contain multiple lines when collapsed ranges are present.)
-  function mapFromLineView(lineView, line, lineN) {
-    if (lineView.line == line)
-      return {map: lineView.measure.map, cache: lineView.measure.cache};
-    for (var i = 0; i < lineView.rest.length; i++)
-      if (lineView.rest[i] == line)
-        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
-    for (var i = 0; i < lineView.rest.length; i++)
-      if (lineNo(lineView.rest[i]) > lineN)
-        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
-  }
-
-  // Render a line into the hidden node display.externalMeasured. Used
-  // when measurement is needed for a line that's not in the viewport.
-  function updateExternalMeasurement(cm, line) {
-    line = visualLine(line);
-    var lineN = lineNo(line);
-    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
-    view.lineN = lineN;
-    var built = view.built = buildLineContent(cm, view);
-    view.text = built.pre;
-    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
-    return view;
-  }
-
-  // Get a {top, bottom, left, right} box (in line-local coordinates)
-  // for a given character.
-  function measureChar(cm, line, ch, bias) {
-    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
-  }
-
-  // Find a line view that corresponds to the given line number.
-  function findViewForLine(cm, lineN) {
-    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
-      return cm.display.view[findViewIndex(cm, lineN)];
-    var ext = cm.display.externalMeasured;
-    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
-      return ext;
-  }
-
-  // Measurement can be split in two steps, the set-up work that
-  // applies to the whole line, and the measurement of the actual
-  // character. Functions like coordsChar, that need to do a lot of
-  // measurements in a row, can thus ensure that the set-up work is
-  // only done once.
-  function prepareMeasureForLine(cm, line) {
-    var lineN = lineNo(line);
-    var view = findViewForLine(cm, lineN);
-    if (view && !view.text)
-      view = null;
-    else if (view && view.changes)
-      updateLineForChanges(cm, view, lineN, getDimensions(cm));
-    if (!view)
-      view = updateExternalMeasurement(cm, line);
-
-    var info = mapFromLineView(view, line, lineN);
-    return {
-      line: line, view: view, rect: null,
-      map: info.map, cache: info.cache, before: info.before,
-      hasHeights: false
-    };
-  }
-
-  // Given a prepared measurement object, measures the position of an
-  // actual character (or fetches it from the cache).
-  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
-    if (prepared.before) ch = -1;
-    var key = ch + (bias || ""), found;
-    if (prepared.cache.hasOwnProperty(key)) {
-      found = prepared.cache[key];
-    } else {
-      if (!prepared.rect)
-        prepared.rect = prepared.view.text.getBoundingClientRect();
-      if (!prepared.hasHeights) {
-        ensureLineHeights(cm, prepared.view, prepared.rect);
-        prepared.hasHeights = true;
-      }
-      found = measureCharInner(cm, prepared, ch, bias);
-      if (!found.bogus) prepared.cache[key] = found;
-    }
-    return {left: found.left, right: found.right,
-            top: varHeight ? found.rtop : found.top,
-            bottom: varHeight ? found.rbottom : found.bottom};
-  }
-
-  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
-
-  function nodeAndOffsetInLineMap(map, ch, bias) {
-    var node, start, end, collapse;
-    // First, search the line map for the text node corresponding to,
-    // or closest to, the target character.
-    for (var i = 0; i < map.length; i += 3) {
-      var mStart = map[i], mEnd = map[i + 1];
-      if (ch < mStart) {
-        start = 0; end = 1;
-        collapse = "left";
-      } else if (ch < mEnd) {
-        start = ch - mStart;
-        end = start + 1;
-      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
-        end = mEnd - mStart;
-        start = end - 1;
-        if (ch >= mEnd) collapse = "right";
-      }
-      if (start != null) {
-        node = map[i + 2];
-        if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
-          collapse = bias;
-        if (bias == "left" && start == 0)
-          while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
-            node = map[(i -= 3) + 2];
-            collapse = "left";
-          }
-        if (bias == "right" && start == mEnd - mStart)
-          while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
-            node = map[(i += 3) + 2];
-            collapse = "right";
-          }
-        break;
-      }
-    }
-    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
-  }
-
-  function measureCharInner(cm, prepared, ch, bias) {
-    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
-    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
-
-    var rect;
-    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
-      for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
-        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
-        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
-        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
-          rect = node.parentNode.getBoundingClientRect();
-        } else if (ie && cm.options.lineWrapping) {
-          var rects = range(node, start, end).getClientRects();
-          if (rects.length)
-            rect = rects[bias == "right" ? rects.length - 1 : 0];
-          else
-            rect = nullRect;
-        } else {
-          rect = range(node, start, end).getBoundingClientRect() || nullRect;
-        }
-        if (rect.left || rect.right || start == 0) break;
-        end = start;
-        start = start - 1;
-        collapse = "right";
-      }
-      if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
-    } else { // If it is a widget, simply get the box for the whole widget.
-      if (start > 0) collapse = bias = "right";
-      var rects;
-      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
-        rect = rects[bias == "right" ? rects.length - 1 : 0];
-      else
-        rect = node.getBoundingClientRect();
-    }
-    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
-      var rSpan = node.parentNode.getClientRects()[0];
-      if (rSpan)
-        rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
-      else
-        rect = nullRect;
-    }
-
-    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
-    var mid = (rtop + rbot) / 2;
-    var heights = prepared.view.measure.heights;
-    for (var i = 0; i < heights.length - 1; i++)
-      if (mid < heights[i]) break;
-    var top = i ? heights[i - 1] : 0, bot = heights[i];
-    var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
-                  right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
-                  top: top, bottom: bot};
-    if (!rect.left && !rect.right) result.bogus = true;
-    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
-
-    return result;
-  }
-
-  // Work around problem with bounding client rects on ranges being
-  // returned incorrectly when zoomed on IE10 and below.
-  function maybeUpdateRectForZooming(measure, rect) {
-    if (!window.screen || screen.logicalXDPI == null ||
-        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
-      return rect;
-    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
-    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
-    return {left: rect.left * scaleX, right: rect.right * scaleX,
-            top: rect.top * scaleY, bottom: rect.bottom * scaleY};
-  }
-
-  function clearLineMeasurementCacheFor(lineView) {
-    if (lineView.measure) {
-      lineView.measure.cache = {};
-      lineView.measure.heights = null;
-      if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
-        lineView.measure.caches[i] = {};
-    }
-  }
-
-  function clearLineMeasurementCache(cm) {
-    cm.display.externalMeasure = null;
-    removeChildren(cm.display.lineMeasure);
-    for (var i = 0; i < cm.display.view.length; i++)
-      clearLineMeasurementCacheFor(cm.display.view[i]);
-  }
-
-  function clearCaches(cm) {
-    clearLineMeasurementCache(cm);
-    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
-    if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
-    cm.display.lineNumChars = null;
-  }
-
-  function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
-  function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
-
-  // Converts a {top, bottom, left, right} box from line-local
-  // coordinates into another coordinate system. Context may be one of
-  // "line", "div" (display.lineDiv), "local"/null (editor), "window",
-  // or "page".
-  function intoCoordSystem(cm, lineObj, rect, context) {
-    if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
-      var size = widgetHeight(lineObj.widgets[i]);
-      rect.top += size; rect.bottom += size;
-    }
-    if (context == "line") return rect;
-    if (!context) context = "local";
-    var yOff = heightAtLine(lineObj);
-    if (context == "local") yOff += paddingTop(cm.display);
-    else yOff -= cm.display.viewOffset;
-    if (context == "page" || context == "window") {
-      var lOff = cm.display.lineSpace.getBoundingClientRect();
-      yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
-      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
-      rect.left += xOff; rect.right += xOff;
-    }
-    rect.top += yOff; rect.bottom += yOff;
-    return rect;
-  }
-
-  // Coverts a box from "div" coords to another coordinate system.
-  // Context may be "window", "page", "div", or "local"/null.
-  function fromCoordSystem(cm, coords, context) {
-    if (context == "div") return coords;
-    var left = coords.left, top = coords.top;
-    // First move into "page" coordinate system
-    if (context == "page") {
-      left -= pageScrollX();
-      top -= pageScrollY();
-    } else if (context == "local" || !context) {
-      var localBox = cm.display.sizer.getBoundingClientRect();
-      left += localBox.left;
-      top += localBox.top;
-    }
-
-    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
-    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
-  }
-
-  function charCoords(cm, pos, context, lineObj, bias) {
-    if (!lineObj) lineObj = getLine(cm.doc, pos.line);
-    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
-  }
-
-  // Returns a box for a given cursor position, which may have an
-  // 'other' property containing the position of the secondary cursor
-  // on a bidi boundary.
-  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
-    lineObj = lineObj || getLine(cm.doc, pos.line);
-    if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
-    function get(ch, right) {
-      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
-      if (right) m.left = m.right; else m.right = m.left;
-      return intoCoordSystem(cm, lineObj, m, context);
-    }
-    function getBidi(ch, partPos) {
-      var part = order[partPos], right = part.level % 2;
-      if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
-        part = order[--partPos];
-        ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
-        right = true;
-      } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
-        part = order[++partPos];
-        ch = bidiLeft(part) - part.level % 2;
-        right = false;
-      }
-      if (right && ch == part.to && ch > part.from) return get(ch - 1);
-      return get(ch, right);
-    }
-    var order = getOrder(lineObj), ch = pos.ch;
-    if (!order) return get(ch);
-    var partPos = getBidiPartAt(order, ch);
-    var val = getBidi(ch, partPos);
-    if (bidiOther != null) val.other = getBidi(ch, bidiOther);
-    return val;
-  }
-
-  // Used to cheaply estimate the coordinates for a position. Used for
-  // intermediate scroll updates.
-  function estimateCoords(cm, pos) {
-    var left = 0, pos = clipPos(cm.doc, pos);
-    if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
-    var lineObj = getLine(cm.doc, pos.line);
-    var top = heightAtLine(lineObj) + paddingTop(cm.display);
-    return {left: left, right: left, top: top, bottom: top + lineObj.height};
-  }
-
-  // Positions returned by coordsChar contain some extra information.
-  // xRel is the relative x position of the input coordinates compared
-  // to the found position (so xRel > 0 means the coordinates are to
-  // the right of the character position, for example). When outside
-  // is true, that means the coordinates lie outside the line's
-  // vertical range.
-  function PosWithInfo(line, ch, outside, xRel) {
-    var pos = Pos(line, ch);
-    pos.xRel = xRel;
-    if (outside) pos.outside = true;
-    return pos;
-  }
-
-  // Compute the character position closest to the given coordinates.
-  // Input must be lineSpace-local ("div" coordinate system).
-  function coordsChar(cm, x, y) {
-    var doc = cm.doc;
-    y += cm.display.viewOffset;
-    if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
-    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
-    if (lineN > last)
-      return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
-    if (x < 0) x = 0;
-
-    var lineObj = getLine(doc, lineN);
-    for (;;) {
-      var found = coordsCharInner(cm, lineObj, lineN, x, y);
-      var merged = collapsedSpanAtEnd(lineObj);
-      var mergedPos = merged && merged.find(0, true);
-      if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
-        lineN = lineNo(lineObj = mergedPos.to.line);
-      else
-        return found;
-    }
-  }
-
-  function coordsCharInner(cm, lineObj, lineNo, x, y) {
-    var innerOff = y - heightAtLine(lineObj);
-    var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
-    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
-
-    function getX(ch) {
-      var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
-      wrongLine = true;
-      if (innerOff > sp.bottom) return sp.left - adjust;
-      else if (innerOff < sp.top) return sp.left + adjust;
-      else wrongLine = false;
-      return sp.left;
-    }
-
-    var bidi = getOrder(lineObj), dist = lineObj.text.length;
-    var from = lineLeft(lineObj), to = lineRight(lineObj);
-    var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
-
-    if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
-    // Do a binary search between these bounds.
-    for (;;) {
-      if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
-        var ch = x < fromX || x - fromX <= toX - x ? from : to;
-        var xDiff = x - (ch == from ? fromX : toX);
-        while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
-        var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
-                              xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
-        return pos;
-      }
-      var step = Math.ceil(dist / 2), middle = from + step;
-      if (bidi) {
-        middle = from;
-        for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
-      }
-      var middleX = getX(middle);
-      if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
-      else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
-    }
-  }
-
-  var measureText;
-  // Compute the default text height.
-  function textHeight(display) {
-    if (display.cachedTextHeight != null) return display.cachedTextHeight;
-    if (measureText == null) {
-      measureText = elt("pre");
-      // Measure a bunch of lines, for browsers that compute
-      // fractional heights.
-      for (var i = 0; i < 49; ++i) {
-        measureText.appendChild(document.createTextNode("x"));
-        measureText.appendChild(elt("br"));
-      }
-      measureText.appendChild(document.createTextNode("x"));
-    }
-    removeChildrenAndAdd(display.measure, measureText);
-    var height = measureText.offsetHeight / 50;
-    if (height > 3) display.cachedTextHeight = height;
-    removeChildren(display.measure);
-    return height || 1;
-  }
-
-  // Compute the default character width.
-  function charWidth(display) {
-    if (display.cachedCharWidth != null) return display.cachedCharWidth;
-    var anchor = elt("span", "xxxxxxxxxx");
-    var pre = elt("pre", [anchor]);
-    removeChildrenAndAdd(display.measure, pre);
-    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
-    if (width > 2) display.cachedCharWidth = width;
-    return width || 10;
-  }
-
-  // OPERATIONS
-
-  // Operations are used to wrap a series of changes to the editor
-  // state in such a way that each change won't have to update the
-  // cursor and display (which would be awkward, slow, and
-  // error-prone). Instead, display updates are batched and then all
-  // combined and executed at once.
-
-  var operationGroup = null;
-
-  var nextOpId = 0;
-  // Start a new operation.
-  function startOperation(cm) {
-    cm.curOp = {
-      cm: cm,
-      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
-      startHeight: cm.doc.height, // Used to detect need to update scrollbar
-      forceUpdate: false,      // Used to force a redraw
-      updateInput: null,       // Whether to reset the input textarea
-      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
-      changeObjs: null,        // Accumulated changes, for firing change events
-      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
-      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
-      selectionChanged: false, // Whether the selection needs to be redrawn
-      updateMaxLine: false,    // Set when the widest line needs to be determined anew
-      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
-      scrollToPos: null,       // Used to scroll to a specific position
-      focus: false,
-      id: ++nextOpId           // Unique ID
-    };
-    if (operationGroup) {
-      operationGroup.ops.push(cm.curOp);
-    } else {
-      cm.curOp.ownsGroup = operationGroup = {
-        ops: [cm.curOp],
-        delayedCallbacks: []
-      };
-    }
-  }
-
-  function fireCallbacksForOps(group) {
-    // Calls delayed callbacks and cursorActivity handlers until no
-    // new ones appear
-    var callbacks = group.delayedCallbacks, i = 0;
-    do {
-      for (; i < callbacks.length; i++)
-        callbacks[i]();
-      for (var j = 0; j < group.ops.length; j++) {
-        var op = group.ops[j];
-        if (op.cursorActivityHandlers)
-          while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
-            op.cursorActivityHandlers[op.cursorActivityCalled++](op.cm);
-      }
-    } while (i < callbacks.length);
-  }
-
-  // Finish an operation, updating the display and signalling delayed events
-  function endOperation(cm) {
-    var op = cm.curOp, group = op.ownsGroup;
-    if (!group) return;
-
-    try { fireCallbacksForOps(group); }
-    finally {
-      operationGroup = null;
-      for (var i = 0; i < group.ops.length; i++)
-        group.ops[i].cm.curOp = null;
-      endOperations(group);
-    }
-  }
-
-  // The DOM updates done when an operation finishes are batched so
-  // that the minimum number of relayouts are required.
-  function endOperations(group) {
-    var ops = group.ops;
-    for (var i = 0; i < ops.length; i++) // Read DOM
-      endOperation_R1(ops[i]);
-    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
-      endOperation_W1(ops[i]);
-    for (var i = 0; i < ops.length; i++) // Read DOM
-      endOperation_R2(ops[i]);
-    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
-      endOperation_W2(ops[i]);
-    for (var i = 0; i < ops.length; i++) // Read DOM
-      endOperation_finish(ops[i]);
-  }
-
-  function endOperation_R1(op) {
-    var cm = op.cm, display = cm.display;
-    maybeClipScrollbars(cm);
-    if (op.updateMaxLine) findMaxLine(cm);
-
-    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
-      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
-                         op.scrollToPos.to.line >= display.viewTo) ||
-      display.maxLineChanged && cm.options.lineWrapping;
-    op.update = op.mustUpdate &&
-      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
-  }
-
-  function endOperation_W1(op) {
-    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
-  }
-
-  function endOperation_R2(op) {
-    var cm = op.cm, display = cm.display;
-    if (op.updatedDisplay) updateHeightsInViewport(cm);
-
-    op.barMeasure = measureForScrollbars(cm);
-
-    // If the max line changed since it was last measured, measure it,
-    // and ensure the document's width matches it.
-    // updateDisplay_W2 will use these properties to do the actual resizing
-    if (display.maxLineChanged && !cm.options.lineWrapping) {
-      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
-      cm.display.sizerWidth = op.adjustWidthTo;
-      op.barMeasure.scrollWidth =
-        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
-      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
-    }
-
-    if (op.updatedDisplay || op.selectionChanged)
-      op.preparedSelection = display.input.prepareSelection();
-  }
-
-  function endOperation_W2(op) {
-    var cm = op.cm;
-
-    if (op.adjustWidthTo != null) {
-      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
-      if (op.maxScrollLeft < cm.doc.scrollLeft)
-        setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
-      cm.display.maxLineChanged = false;
-    }
-
-    if (op.preparedSelection)
-      cm.display.input.showSelection(op.preparedSelection);
-    if (op.updatedDisplay)
-      setDocumentHeight(cm, op.barMeasure);
-    if (op.updatedDisplay || op.startHeight != cm.doc.height)
-      updateScrollbars(cm, op.barMeasure);
-
-    if (op.selectionChanged) restartBlink(cm);
-
-    if (cm.state.focused && op.updateInput)
-      cm.display.input.reset(op.typing);
-    if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
-  }
-
-  function endOperation_finish(op) {
-    var cm = op.cm, display = cm.display, doc = cm.doc;
-
-    if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
-
-    // Abort mouse wheel delta measurement, when scrolling explicitly
-    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
-      display.wheelStartX = display.wheelStartY = null;
-
-    // Propagate the scroll position to the actual DOM scroller
-    if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
-      doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
-      display.scrollbars.setScrollTop(doc.scrollTop);
-      display.scroller.scrollTop = doc.scrollTop;
-    }
-    if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
-      doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));
-      display.scrollbars.setScrollLeft(doc.scrollLeft);
-      display.scroller.scrollLeft = doc.scrollLeft;
-      alignHorizontally(cm);
-    }
-    // If we need to scroll a specific position into view, do so.
-    if (op.scrollToPos) {
-      var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
-                                     clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
-      if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
-    }
-
-    // Fire events for markers that are hidden/unidden by editing or
-    // undoing
-    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
-    if (hidden) for (var i = 0; i < hidden.length; ++i)
-      if (!hidden[i].lines.length) signal(hidden[i], "hide");
-    if (unhidden) for (var i = 0; i < unhidden.length; ++i)
-      if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
-
-    if (display.wrapper.offsetHeight)
-      doc.scrollTop = cm.display.scroller.scrollTop;
-
-    // Fire change events, and delayed event handlers
-    if (op.changeObjs)
-      signal(cm, "changes", cm, op.changeObjs);
-    if (op.update)
-      op.update.finish();
-  }
-
-  // Run the given function in an operation
-  function runInOp(cm, f) {
-    if (cm.curOp) return f();
-    startOperation(cm);
-    try { return f(); }
-    finally { endOperation(cm); }
-  }
-  // Wraps a function in an operation. Returns the wrapped function.
-  function operation(cm, f) {
-    return function() {
-      if (cm.curOp) return f.apply(cm, arguments);
-      startOperation(cm);
-      try { return f.apply(cm, arguments); }
-      finally { endOperation(cm); }
-    };
-  }
-  // Used to add methods to editor and doc instances, wrapping them in
-  // operations.
-  function methodOp(f) {
-    return function() {
-      if (this.curOp) return f.apply(this, arguments);
-      startOperation(this);
-      try { return f.apply(this, arguments); }
-      finally { endOperation(this); }
-    };
-  }
-  function docMethodOp(f) {
-    return function() {
-      var cm = this.cm;
-      if (!cm || cm.curOp) return f.apply(this, arguments);
-      startOperation(cm);
-      try { return f.apply(this, arguments); }
-      finally { endOperation(cm); }
-    };
-  }
-
-  // VIEW TRACKING
-
-  // These objects are used to represent the visible (currently drawn)
-  // part of the document. A LineView may correspond to multiple
-  // logical lines, if those are connected by collapsed ranges.
-  function LineView(doc, line, lineN) {
-    // The starting line
-    this.line = line;
-    // Continuing lines, if any
-    this.rest = visualLineContinued(line);
-    // Number of logical lines in this visual line
-    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
-    this.node = this.text = null;
-    this.hidden = lineIsHidden(doc, line);
-  }
-
-  // Create a range of LineView objects for the given lines.
-  function buildViewArray(cm, from, to) {
-    var array = [], nextPos;
-    for (var pos = from; pos < to; pos = nextPos) {
-      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
-      nextPos = pos + view.size;
-      array.push(view);
-    }
-    return array;
-  }
-
-  // Updates the display.view data structure for a given change to the
-  // document. From and to are in pre-change coordinates. Lendiff is
-  // the amount of lines added or subtracted by the change. This is
-  // used for changes that span multiple lines, or change the way
-  // lines are divided into visual lines. regLineChange (below)
-  // registers single-line changes.
-  function regChange(cm, from, to, lendiff) {
-    if (from == null) from = cm.doc.first;
-    if (to == null) to = cm.doc.first + cm.doc.size;
-    if (!lendiff) lendiff = 0;
-
-    var display = cm.display;
-    if (lendiff && to < display.viewTo &&
-        (display.updateLineNumbers == null || display.updateLineNumbers > from))
-      display.updateLineNumbers = from;
-
-    cm.curOp.viewChanged = true;
-
-    if (from >= display.viewTo) { // Change after
-      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
-        resetView(cm);
-    } else if (to <= display.viewFrom) { // Change before
-      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
-        resetView(cm);
-      } else {
-        display.viewFrom += lendiff;
-        display.viewTo += lendiff;
-      }
-    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
-      resetView(cm);
-    } else if (from <= display.viewFrom) { // Top overlap
-      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
-      if (cut) {
-        display.view = display.view.slice(cut.index);
-        display.viewFrom = cut.lineN;
-        display.viewTo += lendiff;
-      } else {
-        resetView(cm);
-      }
-    } else if (to >= display.viewTo) { // Bottom overlap
-      var cut = viewCuttingPoint(cm, from, from, -1);
-      if (cut) {
-        display.view = display.view.slice(0, cut.index);
-        display.viewTo = cut.lineN;
-      } else {
-        resetView(cm);
-      }
-    } else { // Gap in the middle
-      var cutTop = viewCuttingPoint(cm, from, from, -1);
-      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
-      if (cutTop && cutBot) {
-        display.view = display.view.slice(0, cutTop.index)
-          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
-          .concat(display.view.slice(cutBot.index));
-        display.viewTo += lendiff;
-      } else {
-        resetView(cm);
-      }
-    }
-
-    var ext = display.externalMeasured;
-    if (ext) {
-      if (to < ext.lineN)
-        ext.lineN += lendiff;
-      else if (from < ext.lineN + ext.size)
-        display.externalMeasured = null;
-    }
-  }
-
-  // Register a change to a single line. Type must be one of "text",
-  // "gutter", "class", "widget"
-  function regLineChange(cm, line, type) {
-    cm.curOp.viewChanged = true;
-    var display = cm.display, ext = cm.display.externalMeasured;
-    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
-      display.externalMeasured = null;
-
-    if (line < display.viewFrom || line >= display.viewTo) return;
-    var lineView = display.view[findViewIndex(cm, line)];
-    if (lineView.node == null) return;
-    var arr = lineView.changes || (lineView.changes = []);
-    if (indexOf(arr, type) == -1) arr.push(type);
-  }
-
-  // Clear the view.
-  function resetView(cm) {
-    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
-    cm.display.view = [];
-    cm.display.viewOffset = 0;
-  }
-
-  // Find the view element corresponding to a given line. Return null
-  // when the line isn't visible.
-  function findViewIndex(cm, n) {
-    if (n >= cm.display.viewTo) return null;
-    n -= cm.display.viewFrom;
-    if (n < 0) return null;
-    var view = cm.display.view;
-    for (var i = 0; i < view.length; i++) {
-      n -= view[i].size;
-      if (n < 0) return i;
-    }
-  }
-
-  function viewCuttingPoint(cm, oldN, newN, dir) {
-    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
-    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
-      return {index: index, lineN: newN};
-    for (var i = 0, n = cm.display.viewFrom; i < index; i++)
-      n += view[i].size;
-    if (n != oldN) {
-      if (dir > 0) {
-        if (index == view.length - 1) return null;
-        diff = (n + view[index].size) - oldN;
-        index++;
-      } else {
-        diff = n - oldN;
-      }
-      oldN += diff; newN += diff;
-    }
-    while (visualLineNo(cm.doc, newN) != newN) {
-      if (index == (dir < 0 ? 0 : view.length - 1)) return null;
-      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
-      index += dir;
-    }
-    return {index: index, lineN: newN};
-  }
-
-  // Force the view to cover a given range, adding empty view element
-  // or clipping off existing ones as needed.
-  function adjustView(cm, from, to) {
-    var display = cm.display, view = display.view;
-    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
-      display.view = buildViewArray(cm, from, to);
-      display.viewFrom = from;
-    } else {
-      if (display.viewFrom > from)
-        display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
-      else if (display.viewFrom < from)
-        display.view = display.view.slice(findViewIndex(cm, from));
-      display.viewFrom = from;
-      if (display.viewTo < to)
-        display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
-      else if (display.viewTo > to)
-        display.view = display.view.slice(0, findViewIndex(cm, to));
-    }
-    display.viewTo = to;
-  }
-
-  // Count the number of lines in the view whose DOM representation is
-  // out of date (or nonexistent).
-  function countDirtyView(cm) {
-    var view = cm.display.view, dirty = 0;
-    for (var i = 0; i < view.length; i++) {
-      var lineView = view[i];
-      if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
-    }
-    return dirty;
-  }
-
-  // EVENT HANDLERS
-
-  // Attach the necessary event handlers when initializing the editor
-  function registerEventHandlers(cm) {
-    var d = cm.display;
-    on(d.scroller, "mousedown", operation(cm, onMouseDown));
-    // Older IE's will not fire a second mousedown for a double click
-    if (ie && ie_version < 11)
-      on(d.scroller, "dblclick", operation(cm, function(e) {
-        if (signalDOMEvent(cm, e)) return;
-        var pos = posFromMouse(cm, e);
-        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
-        e_preventDefault(e);
-        var word = cm.findWordAt(pos);
-        extendSelection(cm.doc, word.anchor, word.head);
-      }));
-    else
-      on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
-    // Some browsers fire contextmenu *after* opening the menu, at
-    // which point we can't mess with it anymore. Context menu is
-    // handled in onMouseDown for these browsers.
-    if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
-
-    // Used to suppress mouse event handling when a touch happens
-    var touchFinished, prevTouch = {end: 0};
-    function finishTouch() {
-      if (d.activeTouch) {
-        touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
-        prevTouch = d.activeTouch;
-        prevTouch.end = +new Date;
-      }
-    };
-    function isMouseLikeTouchEvent(e) {
-      if (e.touches.length != 1) return false;
-      var touch = e.touches[0];
-      return touch.radiusX <= 1 && touch.radiusY <= 1;
-    }
-    function farAway(touch, other) {
-      if (other.left == null) return true;
-      var dx = other.left - touch.left, dy = other.top - touch.top;
-      return dx * dx + dy * dy > 20 * 20;
-    }
-    on(d.scroller, "touchstart", function(e) {
-      if (!isMouseLikeTouchEvent(e)) {
-        clearTimeout(touchFinished);
-        var now = +new Date;
-        d.activeTouch = {start: now, moved: false,
-                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
-        if (e.touches.length == 1) {
-          d.activeTouch.left = e.touches[0].pageX;
-          d.activeTouch.top = e.touches[0].pageY;
-        }
-      }
-    });
-    on(d.scroller, "touchmove", function() {
-      if (d.activeTouch) d.activeTouch.moved = true;
-    });
-    on(d.scroller, "touchend", function(e) {
-      var touch = d.activeTouch;
-      if (touch && !eventInWidget(d, e) && touch.left != null &&
-          !touch.moved && new Date - touch.start < 300) {
-        var pos = cm.coordsChar(d.activeTouch, "page"), range;
-        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
-          range = new Range(pos, pos);
-        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
-          range = cm.findWordAt(pos);
-        else // Triple tap
-          range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
-        cm.setSelection(range.anchor, range.head);
-        cm.focus();
-        e_preventDefault(e);
-      }
-      finishTouch();
-    });
-    on(d.scroller, "touchcancel", finishTouch);
-
-    // Sync scrolling between fake scrollbars and real scrollable
-    // area, ensure viewport is updated when scrolling.
-    on(d.scroller, "scroll", function() {
-      if (d.scroller.clientHeight) {
-        setScrollTop(cm, d.scroller.scrollTop);
-        setScrollLeft(cm, d.scroller.scrollLeft, true);
-        signal(cm, "scroll", cm);
-      }
-    });
-
-    // Listen to wheel events in order to try and update the viewport on time.
-    on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
-    on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
-
-    // Prevent wrapper from ever scrolling
-    on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
-
-    d.dragFunctions = {
-      simple: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
-      start: function(e){onDragStart(cm, e);},
-      drop: operation(cm, onDrop)
-    };
-
-    var inp = d.input.getField();
-    on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
-    on(inp, "keydown", operation(cm, onKeyDown));
-    on(inp, "keypress", operation(cm, onKeyPress));
-    on(inp, "focus", bind(onFocus, cm));
-    on(inp, "blur", bind(onBlur, cm));
-  }
-
-  function dragDropChanged(cm, value, old) {
-    var wasOn = old && old != CodeMirror.Init;
-    if (!value != !wasOn) {
-      var funcs = cm.display.dragFunctions;
-      var toggle = value ? on : off;
-      toggle(cm.display.scroller, "dragstart", funcs.start);
-      toggle(cm.display.scroller, "dragenter", funcs.simple);
-      toggle(cm.display.scroller, "dragover", funcs.simple);
-      toggle(cm.display.scroller, "drop", funcs.drop);
-    }
-  }
-
-  // Called when the window resizes
-  function onResize(cm) {
-    var d = cm.display;
-    if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
-      return;
-    // Might be a text scaling operation, clear size caches.
-    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
-    d.scrollbarsClipped = false;
-    cm.setSize();
-  }
-
-  // MOUSE EVENTS
-
-  // Return true when the given mouse event happened in a widget
-  function eventInWidget(display, e) {
-    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
-      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
-          (n.parentNode == display.sizer && n != display.mover))
-        return true;
-    }
-  }
-
-  // Given a mouse event, find the corresponding position. If liberal
-  // is false, it checks whether a gutter or scrollbar was clicked,
-  // and returns null if it was. forRect is used by rectangular
-  // selections, and tries to estimate a character position even for
-  // coordinates beyond the right of the text.
-  function posFromMouse(cm, e, liberal, forRect) {
-    var display = cm.display;
-    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
-
-    var x, y, space = display.lineSpace.getBoundingClientRect();
-    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
-    try { x = e.clientX - space.left; y = e.clientY - space.top; }
-    catch (e) { return null; }
-    var coords = coordsChar(cm, x, y), line;
-    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
-      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
-      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
-    }
-    return coords;
-  }
-
-  // A mouse down can be a single click, double click, triple click,
-  // start of selection drag, start of text drag, new cursor
-  // (ctrl-click), rectangle drag (alt-drag), or xwin
-  // middle-click-paste. Or it might be a click on something we should
-  // not interfere with, such as a scrollbar or widget.
-  function onMouseDown(e) {
-    var cm = this, display = cm.display;
-    if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;
-    display.shift = e.shiftKey;
-
-    if (eventInWidget(display, e)) {
-      if (!webkit) {
-        // Briefly turn off draggability, to allow widgets to do
-        // normal dragging things.
-        display.scroller.draggable = false;
-        setTimeout(function(){display.scroller.draggable = true;}, 100);
-      }
-      return;
-    }
-    if (clickInGutter(cm, e)) return;
-    var start = posFromMouse(cm, e);
-    window.focus();
-
-    switch (e_button(e)) {
-    case 1:
-      if (start)
-        leftButtonDown(cm, e, start);
-      else if (e_target(e) == display.scroller)
-        e_preventDefault(e);
-      break;
-    case 2:
-      if (webkit) cm.state.lastMiddleDown = +new Date;
-      if (start) extendSelection(cm.doc, start);
-      setTimeout(function() {display.input.focus();}, 20);
-      e_preventDefault(e);
-      break;
-    case 3:
-      if (captureRightClick) onContextMenu(cm, e);
-      else delayBlurEvent(cm);
-      break;
-    }
-  }
-
-  var lastClick, lastDoubleClick;
-  function leftButtonDown(cm, e, start) {
-    if (ie) setTimeout(bind(ensureFocus, cm), 0);
-    else cm.curOp.focus = activeElt();
-
-    var now = +new Date, type;
-    if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
-      type = "triple";
-    } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
-      type = "double";
-      lastDoubleClick = {time: now, pos: start};
-    } else {
-      type = "single";
-      lastClick = {time: now, pos: start};
-    }
-
-    var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
-    if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
-        type == "single" && (contained = sel.contains(start)) > -1 &&
-        !sel.ranges[contained].empty())
-      leftButtonStartDrag(cm, e, start, modifier);
-    else
-      leftButtonSelect(cm, e, start, type, modifier);
-  }
-
-  // Start a text drag. When it ends, see if any dragging actually
-  // happen, and treat as a click if it didn't.
-  function leftButtonStartDrag(cm, e, start, modifier) {
-    var display = cm.display, startTime = +new Date;
-    var dragEnd = operation(cm, function(e2) {
-      if (webkit) display.scroller.draggable = false;
-      cm.state.draggingText = false;
-      off(document, "mouseup", dragEnd);
-      off(display.scroller, "drop", dragEnd);
-      if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
-        e_preventDefault(e2);
-        if (!modifier && +new Date - 200 < startTime)
-          extendSelection(cm.doc, start);
-        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
-        if (webkit || ie && ie_version == 9)
-          setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
-        else
-          display.input.focus();
-      }
-    });
-    // Let the drag handler handle this.
-    if (webkit) display.scroller.draggable = true;
-    cm.state.draggingText = dragEnd;
-    // IE's approach to draggable
-    if (display.scroller.dragDrop) display.scroller.dragDrop();
-    on(document, "mouseup", dragEnd);
-    on(display.scroller, "drop", dragEnd);
-  }
-
-  // Normal selection, as opposed to text dragging.
-  function leftButtonSelect(cm, e, start, type, addNew) {
-    var display = cm.display, doc = cm.doc;
-    e_preventDefault(e);
-
-    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
-    if (addNew && !e.shiftKey) {
-      ourIndex = doc.sel.contains(start);
-      if (ourIndex > -1)
-        ourRange = ranges[ourIndex];
-      else
-        ourRange = new Range(start, start);
-    } else {
-      ourRange = doc.sel.primary();
-      ourIndex = doc.sel.primIndex;
-    }
-
-    if (e.altKey) {
-      type = "rect";
-      if (!addNew) ourRange = new Range(start, start);
-      start = posFromMouse(cm, e, true, true);
-      ourIndex = -1;
-    } else if (type == "double") {
-      var word = cm.findWordAt(start);
-      if (cm.display.shift || doc.extend)
-        ourRange = extendRange(doc, ourRange, word.anchor, word.head);
-      else
-        ourRange = word;
-    } else if (type == "triple") {
-      var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
-      if (cm.display.shift || doc.extend)
-        ourRange = extendRange(doc, ourRange, line.anchor, line.head);
-      else
-        ourRange = line;
-    } else {
-      ourRange = extendRange(doc, ourRange, start);
-    }
-
-    if (!addNew) {
-      ourIndex = 0;
-      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
-      startSel = doc.sel;
-    } else if (ourIndex == -1) {
-      ourIndex = ranges.length;
-      setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
-                   {scroll: false, origin: "*mouse"});
-    } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
-      setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0));
-      startSel = doc.sel;
-    } else {
-      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
-    }
-
-    var lastPos = start;
-    function extendTo(pos) {
-      if (cmp(lastPos, pos) == 0) return;
-      lastPos = pos;
-
-      if (type == "rect") {
-        var ranges = [], tabSize = cm.options.tabSize;
-        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
-        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
-        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
-        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
-             line <= end; line++) {
-          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
-          if (left == right)
-            ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
-          else if (text.length > leftPos)
-            ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
-        }
-        if (!ranges.length) ranges.push(new Range(start, start));
-        setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
-                     {origin: "*mouse", scroll: false});
-        cm.scrollIntoView(pos);
-      } else {
-        var oldRange = ourRange;
-        var anchor = oldRange.anchor, head = pos;
-        if (type != "single") {
-          if (type == "double")
-            var range = cm.findWordAt(pos);
-          else
-            var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
-          if (cmp(range.anchor, anchor) > 0) {
-            head = range.head;
-            anchor = minPos(oldRange.from(), range.anchor);
-          } else {
-            head = range.anchor;
-            anchor = maxPos(oldRange.to(), range.head);
-          }
-        }
-        var ranges = startSel.ranges.slice(0);
-        ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
-        setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
-      }
-    }
-
-    var editorSize = display.wrapper.getBoundingClientRect();
-    // Used to ensure timeout re-tries don't fire when another extend
-    // happened in the meantime (clearTimeout isn't reliable -- at
-    // least on Chrome, the timeouts still happen even when cleared,
-    // if the clear happens after their scheduled firing time).
-    var counter = 0;
-
-    function extend(e) {
-      var curCount = ++counter;
-      var cur = posFromMouse(cm, e, true, type == "rect");
-      if (!cur) return;
-      if (cmp(cur, lastPos) != 0) {
-        cm.curOp.focus = activeElt();
-        extendTo(cur);
-        var visible = visibleLines(display, doc);
-        if (cur.line >= visible.to || cur.line < visible.from)
-          setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
-      } else {
-        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
-        if (outside) setTimeout(operation(cm, function() {
-          if (counter != curCount) return;
-          display.scroller.scrollTop += outside;
-          extend(e);
-        }), 50);
-      }
-    }
-
-    function done(e) {
-      counter = Infinity;
-      e_preventDefault(e);
-      display.input.focus();
-      off(document, "mousemove", move);
-      off(document, "mouseup", up);
-      doc.history.lastSelOrigin = null;
-    }
-
-    var move = operation(cm, function(e) {
-      if (!e_button(e)) done(e);
-      else extend(e);
-    });
-    var up = operation(cm, done);
-    on(document, "mousemove", move);
-    on(document, "mouseup", up);
-  }
-
-  // Determines whether an event happened in the gutter, and fires the
-  // handlers for the corresponding event.
-  function gutterEvent(cm, e, type, prevent, signalfn) {
-    try { var mX = e.clientX, mY = e.clientY; }
-    catch(e) { return false; }
-    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
-    if (prevent) e_preventDefault(e);
-
-    var display = cm.display;
-    var lineBox = display.lineDiv.getBoundingClientRect();
-
-    if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
-    mY -= lineBox.top - display.viewOffset;
-
-    for (var i = 0; i < cm.options.gutters.length; ++i) {
-      var g = display.gutters.childNodes[i];
-      if (g && g.getBoundingClientRect().right >= mX) {
-        var line = lineAtHeight(cm.doc, mY);
-        var gutter = cm.options.gutters[i];
-        signalfn(cm, type, cm, line, gutter, e);
-        return e_defaultPrevented(e);
-      }
-    }
-  }
-
-  function clickInGutter(cm, e) {
-    return gutterEvent(cm, e, "gutterClick", true, signalLater);
-  }
-
-  // Kludge to work around strange IE behavior where it'll sometimes
-  // re-fire a series of drag-related events right after the drop (#1551)
-  var lastDrop = 0;
-
-  function onDrop(e) {
-    var cm = this;
-    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
-      return;
-    e_preventDefault(e);
-    if (ie) lastDrop = +new Date;
-    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
-    if (!pos || isReadOnly(cm)) return;
-    // Might be a file drop, in which case we simply extract the text
-    // and insert it.
-    if (files && files.length && window.FileReader && window.File) {
-      var n = files.length, text = Array(n), read = 0;
-      var loadFile = function(file, i) {
-        var reader = new FileReader;
-        reader.onload = operation(cm, function() {
-          text[i] = reader.result;
-          if (++read == n) {
-            pos = clipPos(cm.doc, pos);
-            var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"};
-            makeChange(cm.doc, change);
-            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
-          }
-        });
-        reader.readAsText(file);
-      };
-      for (var i = 0; i < n; ++i) loadFile(files[i], i);
-    } else { // Normal drop
-      // Don't do a replace if the drop happened inside of the selected text.
-      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
-        cm.state.draggingText(e);
-        // Ensure the editor is re-focused
-        setTimeout(function() {cm.display.input.focus();}, 20);
-        return;
-      }
-      try {
-        var text = e.dataTransfer.getData("Text");
-        if (text) {
-          if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
-            var selected = cm.listSelections();
-          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
-          if (selected) for (var i = 0; i < selected.length; ++i)
-            replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
-          cm.replaceSelection(text, "around", "paste");
-          cm.display.input.focus();
-        }
-      }
-      catch(e){}
-    }
-  }
-
-  function onDragStart(cm, e) {
-    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
-    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
-
-    e.dataTransfer.setData("Text", cm.getSelection());
-
-    // Use dummy image instead of default browsers image.
-    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
-    if (e.dataTransfer.setDragImage && !safari) {
-      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
-      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
-      if (presto) {
-        img.width = img.height = 1;
-        cm.display.wrapper.appendChild(img);
-        // Force a relayout, or Opera won't use our image for some obscure reason
-        img._top = img.offsetTop;
-      }
-      e.dataTransfer.setDragImage(img, 0, 0);
-      if (presto) img.parentNode.removeChild(img);
-    }
-  }
-
-  // SCROLL EVENTS
-
-  // Sync the scrollable area and scrollbars, ensure the viewport
-  // covers the visible area.
-  function setScrollTop(cm, val) {
-    if (Math.abs(cm.doc.scrollTop - val) < 2) return;
-    cm.doc.scrollTop = val;
-    if (!gecko) updateDisplaySimple(cm, {top: val});
-    if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
-    cm.display.scrollbars.setScrollTop(val);
-    if (gecko) updateDisplaySimple(cm);
-    startWorker(cm, 100);
-  }
-  // Sync scroller and scrollbar, ensure the gutter elements are
-  // aligned.
-  function setScrollLeft(cm, val, isScroller) {
-    if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
-    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
-    cm.doc.scrollLeft = val;
-    alignHorizontally(cm);
-    if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
-    cm.display.scrollbars.setScrollLeft(val);
-  }
-
-  // Since the delta values reported on mouse wheel events are
-  // unstandardized between browsers and even browser versions, and
-  // generally horribly unpredictable, this code starts by measuring
-  // the scroll effect that the first few mouse wheel events have,
-  // and, from that, detects the way it can convert deltas to pixel
-  // offsets afterwards.
-  //
-  // The reason we want to know the amount a wheel event will scroll
-  // is that it gives us a chance to update the display before the
-  // actual scrolling happens, reducing flickering.
-
-  var wheelSamples = 0, wheelPixelsPerUnit = null;
-  // Fill in a browser-detected starting value on browsers where we
-  // know one. These don't have to be accurate -- the result of them
-  // being wrong would just be a slight flicker on the first wheel
-  // scroll (if it is large enough).
-  if (ie) wheelPixelsPerUnit = -.53;
-  else if (gecko) wheelPixelsPerUnit = 15;
-  else if (chrome) wheelPixelsPerUnit = -.7;
-  else if (safari) wheelPixelsPerUnit = -1/3;
-
-  var wheelEventDelta = function(e) {
-    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
-    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
-    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
-    else if (dy == null) dy = e.wheelDelta;
-    return {x: dx, y: dy};
-  };
-  CodeMirror.wheelEventPixels = function(e) {
-    var delta = wheelEventDelta(e);
-    delta.x *= wheelPixelsPerUnit;
-    delta.y *= wheelPixelsPerUnit;
-    return delta;
-  };
-
-  function onScrollWheel(cm, e) {
-    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
-
-    var display = cm.display, scroll = display.scroller;
-    // Quit if there's nothing to scroll here
-    if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
-          dy && scroll.scrollHeight > scroll.clientHeight)) return;
-
-    // Webkit browsers on OS X abort momentum scrolls when the target
-    // of the scroll event is removed from the scrollable element.
-    // This hack (see related code in patchDisplay) makes sure the
-    // element is kept around.
-    if (dy && mac && webkit) {
-      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
-        for (var i = 0; i < view.length; i++) {
-          if (view[i].node == cur) {
-            cm.display.currentWheelTarget = cur;
-            break outer;
-          }
-        }
-      }
-    }
-
-    // On some browsers, horizontal scrolling will cause redraws to
-    // happen before the gutter has been realigned, causing it to
-    // wriggle around in a most unseemly way. When we have an
-    // estimated pixels/delta value, we just handle horizontal
-    // scrolling entirely here. It'll be slightly off from native, but
-    // better than glitching out.
-    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
-      if (dy)
-        setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
-      setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
-      e_preventDefault(e);
-      display.wheelStartX = null; // Abort measurement, if in progress
-      return;
-    }
-
-    // 'Project' the visible viewport to cover the area that is being
-    // scrolled into view (if we know enough to estimate it).
-    if (dy && wheelPixelsPerUnit != null) {
-      var pixels = dy * wheelPixelsPerUnit;
-      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
-      if (pixels < 0) top = Math.max(0, top + pixels - 50);
-      else bot = Math.min(cm.doc.height, bot + pixels + 50);
-      updateDisplaySimple(cm, {top: top, bottom: bot});
-    }
-
-    if (wheelSamples < 20) {
-      if (display.wheelStartX == null) {
-        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
-        display.wheelDX = dx; display.wheelDY = dy;
-        setTimeout(function() {
-          if (display.wheelStartX == null) return;
-          var movedX = scroll.scrollLeft - display.wheelStartX;
-          var movedY = scroll.scrollTop - display.wheelStartY;
-          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
-            (movedX && display.wheelDX && movedX / display.wheelDX);
-          display.wheelStartX = display.wheelStartY = null;
-          if (!sample) return;
-          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
-          ++wheelSamples;
-        }, 200);
-      } else {
-        display.wheelDX += dx; display.wheelDY += dy;
-      }
-    }
-  }
-
-  // KEY EVENTS
-
-  // Run a handler that was bound to a key.
-  function doHandleBinding(cm, bound, dropShift) {
-    if (typeof bound == "string") {
-      bound = commands[bound];
-      if (!bound) return false;
-    }
-    // Ensure previous input has been read, so that the handler sees a
-    // consistent view of the document
-    cm.display.input.ensurePolled();
-    var prevShift = cm.display.shift, done = false;
-    try {
-      if (isReadOnly(cm)) cm.state.suppressEdits = true;
-      if (dropShift) cm.display.shift = false;
-      done = bound(cm) != Pass;
-    } finally {
-      cm.display.shift = prevShift;
-      cm.state.suppressEdits = false;
-    }
-    return done;
-  }
-
-  function lookupKeyForEditor(cm, name, handle) {
-    for (var i = 0; i < cm.state.keyMaps.length; i++) {
-      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
-      if (result) return result;
-    }
-    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
-      || lookupKey(name, cm.options.keyMap, handle, cm);
-  }
-
-  var stopSeq = new Delayed;
-  function dispatchKey(cm, name, e, handle) {
-    var seq = cm.state.keySeq;
-    if (seq) {
-      if (isModifierKey(name)) return "handled";
-      stopSeq.set(50, function() {
-        if (cm.state.keySeq == seq) {
-          cm.state.keySeq = null;
-          cm.display.input.reset();
-        }
-      });
-      name = seq + " " + name;
-    }
-    var result = lookupKeyForEditor(cm, name, handle);
-
-    if (result == "multi")
-      cm.state.keySeq = name;
-    if (result == "handled")
-      signalLater(cm, "keyHandled", cm, name, e);
-
-    if (result == "handled" || result == "multi") {
-      e_preventDefault(e);
-      restartBlink(cm);
-    }
-
-    if (seq && !result && /\'$/.test(name)) {
-      e_preventDefault(e);
-      return true;
-    }
-    return !!result;
-  }
-
-  // Handle a key from the keydown event.
-  function handleKeyBinding(cm, e) {
-    var name = keyName(e, true);
-    if (!name) return false;
-
-    if (e.shiftKey && !cm.state.keySeq) {
-      // First try to resolve full name (including 'Shift-'). Failing
-      // that, see if there is a cursor-motion command (starting with
-      // 'go') bound to the keyname without 'Shift-'.
-      return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
-          || dispatchKey(cm, name, e, function(b) {
-               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
-                 return doHandleBinding(cm, b);
-             });
-    } else {
-      return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
-    }
-  }
-
-  // Handle a key from the keypress event
-  function handleCharBinding(cm, e, ch) {
-    return dispatchKey(cm, "'" + ch + "'", e,
-                       function(b) { return doHandleBinding(cm, b, true); });
-  }
-
-  var lastStoppedKey = null;
-  function onKeyDown(e) {
-    var cm = this;
-    cm.curOp.focus = activeElt();
-    if (signalDOMEvent(cm, e)) return;
-    // IE does strange things with escape.
-    if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
-    var code = e.keyCode;
-    cm.display.shift = code == 16 || e.shiftKey;
-    var handled = handleKeyBinding(cm, e);
-    if (presto) {
-      lastStoppedKey = handled ? code : null;
-      // Opera has no cut event... we try to at least catch the key combo
-      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
-        cm.replaceSelection("", null, "cut");
-    }
-
-    // Turn mouse into crosshair when Alt is held on Mac.
-    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
-      showCrossHair(cm);
-  }
-
-  function showCrossHair(cm) {
-    var lineDiv = cm.display.lineDiv;
-    addClass(lineDiv, "CodeMirror-crosshair");
-
-    function up(e) {
-      if (e.keyCode == 18 || !e.altKey) {
-        rmClass(lineDiv, "CodeMirror-crosshair");
-        off(document, "keyup", up);
-        off(document, "mouseover", up);
-      }
-    }
-    on(document, "keyup", up);
-    on(document, "mouseover", up);
-  }
-
-  function onKeyUp(e) {
-    if (e.keyCode == 16) this.doc.sel.shift = false;
-    signalDOMEvent(this, e);
-  }
-
-  function onKeyPress(e) {
-    var cm = this;
-    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
-    var keyCode = e.keyCode, charCode = e.charCode;
-    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
-    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
-    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
-    if (handleCharBinding(cm, e, ch)) return;
-    cm.display.input.onKeyPress(e);
-  }
-
-  // FOCUS/BLUR EVENTS
-
-  function delayBlurEvent(cm) {
-    cm.state.delayingBlurEvent = true;
-    setTimeout(function() {
-      if (cm.state.delayingBlurEvent) {
-        cm.state.delayingBlurEvent = false;
-        onBlur(cm);
-      }
-    }, 100);
-  }
-
-  function onFocus(cm) {
-    if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
-
-    if (cm.options.readOnly == "nocursor") return;
-    if (!cm.state.focused) {
-      signal(cm, "focus", cm);
-      cm.state.focused = true;
-      addClass(cm.display.wrapper, "CodeMirror-focused");
-      // This test prevents this from firing when a context
-      // menu is closed (since the input reset would kill the
-      // select-all detection hack)
-      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
-        cm.display.input.reset();
-        if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
-      }
-      cm.display.input.receivedFocus();
-    }
-    restartBlink(cm);
-  }
-  function onBlur(cm) {
-    if (cm.state.delayingBlurEvent) return;
-
-    if (cm.state.focused) {
-      signal(cm, "blur", cm);
-      cm.state.focused = false;
-      rmClass(cm.display.wrapper, "CodeMirror-focused");
-    }
-    clearInterval(cm.display.blinker);
-    setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
-  }
-
-  // CONTEXT MENU HANDLING
-
-  // To make the context menu work, we need to briefly unhide the
-  // textarea (making it as unobtrusive as possible) to let the
-  // right-click take effect on it.
-  function onContextMenu(cm, e) {
-    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
-    cm.display.input.onContextMenu(e);
-  }
-
-  function contextMenuInGutter(cm, e) {
-    if (!hasHandler(cm, "gutterContextMenu")) return false;
-    return gutterEvent(cm, e, "gutterContextMenu", false, signal);
-  }
-
-  // UPDATING
-
-  // Compute the position of the end of a change (its 'to' property
-  // refers to the pre-change end).
-  var changeEnd = CodeMirror.changeEnd = function(change) {
-    if (!change.text) return change.to;
-    return Pos(change.from.line + change.text.length - 1,
-               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
-  };
-
-  // Adjust a position to refer to the post-change position of the
-  // same text, or the end of the change if the change covers it.
-  function adjustForChange(pos, change) {
-    if (cmp(pos, change.from) < 0) return pos;
-    if (cmp(pos, change.to) <= 0) return changeEnd(change);
-
-    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
-    if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
-    return Pos(line, ch);
-  }
-
-  function computeSelAfterChange(doc, change) {
-    var out = [];
-    for (var i = 0; i < doc.sel.ranges.length; i++) {
-      var range = doc.sel.ranges[i];
-      out.push(new Range(adjustForChange(range.anchor, change),
-                         adjustForChange(range.head, change)));
-    }
-    return normalizeSelection(out, doc.sel.primIndex);
-  }
-
-  function offsetPos(pos, old, nw) {
-    if (pos.line == old.line)
-      return Pos(nw.line, pos.ch - old.ch + nw.ch);
-    else
-      return Pos(nw.line + (pos.line - old.line), pos.ch);
-  }
-
-  // Used by replaceSelections to allow moving the selection to the
-  // start or around the replaced test. Hint may be "start" or "around".
-  function computeReplacedSel(doc, changes, hint) {
-    var out = [];
-    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
-    for (var i = 0; i < changes.length; i++) {
-      var change = changes[i];
-      var from = offsetPos(change.from, oldPrev, newPrev);
-      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
-      oldPrev = change.to;
-      newPrev = to;
-      if (hint == "around") {
-        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
-        out[i] = new Range(inv ? to : from, inv ? from : to);
-      } else {
-        out[i] = new Range(from, from);
-      }
-    }
-    return new Selection(out, doc.sel.primIndex);
-  }
-
-  // Allow "beforeChange" event handlers to influence a change
-  function filterChange(doc, change, update) {
-    var obj = {
-      canceled: false,
-      from: change.from,
-      to: change.to,
-      text: change.text,
-      origin: change.origin,
-      cancel: function() { this.canceled = true; }
-    };
-    if (update) obj.update = function(from, to, text, origin) {
-      if (from) this.from = clipPos(doc, from);
-      if (to) this.to = clipPos(doc, to);
-      if (text) this.text = text;
-      if (origin !== undefined) this.origin = origin;
-    };
-    signal(doc, "beforeChange", doc, obj);
-    if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
-
-    if (obj.canceled) return null;
-    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
-  }
-
-  // Apply a change to a document, and add it to the document's
-  // history, and propagating it to all linked documents.
-  function makeChange(doc, change, ignoreReadOnly) {
-    if (doc.cm) {
-      if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
-      if (doc.cm.state.suppressEdits) return;
-    }
-
-    if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
-      change = filterChange(doc, change, true);
-      if (!change) return;
-    }
-
-    // Possibly split or suppress the update based on the presence
-    // of read-only spans in its range.
-    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
-    if (split) {
-      for (var i = split.length - 1; i >= 0; --i)
-        makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
-    } else {
-      makeChangeInner(doc, change);
-    }
-  }
-
-  function makeChangeInner(doc, change) {
-    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
-    var selAfter = computeSelAfterChange(doc, change);
-    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
-
-    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
-    var rebased = [];
-
-    linkedDocs(doc, function(doc, sharedHist) {
-      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
-        rebaseHist(doc.history, change);
-        rebased.push(doc.history);
-      }
-      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
-    });
-  }
-
-  // Revert a change stored in a document's history.
-  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
-    if (doc.cm && doc.cm.state.suppressEdits) return;
-
-    var hist = doc.history, event, selAfter = doc.sel;
-    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
-
-    // Verify that there is a useable event (so that ctrl-z won't
-    // needlessly clear selection events)
-    for (var i = 0; i < source.length; i++) {
-      event = source[i];
-      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
-        break;
-    }
-    if (i == source.length) return;
-    hist.lastOrigin = hist.lastSelOrigin = null;
-
-    for (;;) {
-      event = source.pop();
-      if (event.ranges) {
-        pushSelectionToHistory(event, dest);
-        if (allowSelectionOnly && !event.equals(doc.sel)) {
-          setSelection(doc, event, {clearRedo: false});
-          return;
-        }
-        selAfter = event;
-      }
-      else break;
-    }
-
-    // Build up a reverse change object to add to the opposite history
-    // stack (redo when undoing, and vice versa).
-    var antiChanges = [];
-    pushSelectionToHistory(selAfter, dest);
-    dest.push({changes: antiChanges, generation: hist.generation});
-    hist.generation = event.generation || ++hist.maxGeneration;
-
-    var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
-
-    for (var i = event.changes.length - 1; i >= 0; --i) {
-      var change = event.changes[i];
-      change.origin = type;
-      if (filter && !filterChange(doc, change, false)) {
-        source.length = 0;
-        return;
-      }
-
-      antiChanges.push(historyChangeFromChange(doc, change));
-
-      var after = i ? computeSelAfterChange(doc, change) : lst(source);
-      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
-      if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
-      var rebased = [];
-
-      // Propagate to the linked documents
-      linkedDocs(doc, function(doc, sharedHist) {
-        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
-          rebaseHist(doc.history, change);
-          rebased.push(doc.history);
-        }
-        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
-      });
-    }
-  }
-
-  // Sub-views need their line numbers shifted when text is added
-  // above or below them in the parent document.
-  function shiftDoc(doc, distance) {
-    if (distance == 0) return;
-    doc.first += distance;
-    doc.sel = new Selection(map(doc.sel.ranges, function(range) {
-      return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
-                       Pos(range.head.line + distance, range.head.ch));
-    }), doc.sel.primIndex);
-    if (doc.cm) {
-      regChange(doc.cm, doc.first, doc.first - distance, distance);
-      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
-        regLineChange(doc.cm, l, "gutter");
-    }
-  }
-
-  // More lower-level change function, handling only a single document
-  // (not linked ones).
-  function makeChangeSingleDoc(doc, change, selAfter, spans) {
-    if (doc.cm && !doc.cm.curOp)
-      return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
-
-    if (change.to.line < doc.first) {
-      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
-      return;
-    }
-    if (change.from.line > doc.lastLine()) return;
-
-    // Clip the change to the size of this doc
-    if (change.from.line < doc.first) {
-      var shift = change.text.length - 1 - (doc.first - change.from.line);
-      shiftDoc(doc, shift);
-      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
-                text: [lst(change.text)], origin: change.origin};
-    }
-    var last = doc.lastLine();
-    if (change.to.line > last) {
-      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
-                text: [change.text[0]], origin: change.origin};
-    }
-
-    change.removed = getBetween(doc, change.from, change.to);
-
-    if (!selAfter) selAfter = computeSelAfterChange(doc, change);
-    if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
-    else updateDoc(doc, change, spans);
-    setSelectionNoUndo(doc, selAfter, sel_dontScroll);
-  }
-
-  // Handle the interaction of a change to a document with the editor
-  // that this document is part of.
-  function makeChangeSingleDocInEditor(cm, change, spans) {
-    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
-
-    var recomputeMaxLength = false, checkWidthStart = from.line;
-    if (!cm.options.lineWrapping) {
-      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
-      doc.iter(checkWidthStart, to.line + 1, function(line) {
-        if (line == display.maxLine) {
-          recomputeMaxLength = true;
-          return true;
-        }
-      });
-    }
-
-    if (doc.sel.contains(change.from, change.to) > -1)
-      signalCursorActivity(cm);
-
-    updateDoc(doc, change, spans, estimateHeight(cm));
-
-    if (!cm.options.lineWrapping) {
-      doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
-        var len = lineLength(line);
-        if (len > display.maxLineLength) {
-          display.maxLine = line;
-          display.maxLineLength = len;
-          display.maxLineChanged = true;
-          recomputeMaxLength = false;
-        }
-      });
-      if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
-    }
-
-    // Adjust frontier, schedule worker
-    doc.frontier = Math.min(doc.frontier, from.line);
-    startWorker(cm, 400);
-
-    var lendiff = change.text.length - (to.line - from.line) - 1;
-    // Remember that these lines changed, for updating the display
-    if (change.full)
-      regChange(cm);
-    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
-      regLineChange(cm, from.line, "text");
-    else
-      regChange(cm, from.line, to.line + 1, lendiff);
-
-    var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
-    if (changeHandler || changesHandler) {
-      var obj = {
-        from: from, to: to,
-        text: change.text,
-        removed: change.removed,
-        origin: change.origin
-      };
-      if (changeHandler) signalLater(cm, "change", cm, obj);
-      if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
-    }
-    cm.display.selForContextMenu = null;
-  }
-
-  function replaceRange(doc, code, from, to, origin) {
-    if (!to) to = from;
-    if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
-    if (typeof code == "string") code = splitLines(code);
-    makeChange(doc, {from: from, to: to, text: code, origin: origin});
-  }
-
-  // SCROLLING THINGS INTO VIEW
-
-  // If an editor sits on the top or bottom of the window, partially
-  // scrolled out of view, this ensures that the cursor is visible.
-  function maybeScrollWindow(cm, coords) {
-    if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
-
-    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
-    if (coords.top + box.top < 0) doScroll = true;
-    else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
-    if (doScroll != null && !phantom) {
-      var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
-                           (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
-                           (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
-                           coords.left + "px; width: 2px;");
-      cm.display.lineSpace.appendChild(scrollNode);
-      scrollNode.scrollIntoView(doScroll);
-      cm.display.lineSpace.removeChild(scrollNode);
-    }
-  }
-
-  // Scroll a given position into view (immediately), verifying that
-  // it actually became visible (as line heights are accurately
-  // measured, the position of something may 'drift' during drawing).
-  function scrollPosIntoView(cm, pos, end, margin) {
-    if (margin == null) margin = 0;
-    for (var limit = 0; limit < 5; limit++) {
-      var changed = false, coords = cursorCoords(cm, pos);
-      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
-      var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
-                                         Math.min(coords.top, endCoords.top) - margin,
-                                         Math.max(coords.left, endCoords.left),
-                                         Math.max(coords.bottom, endCoords.bottom) + margin);
-      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
-      if (scrollPos.scrollTop != null) {
-        setScrollTop(cm, scrollPos.scrollTop);
-        if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
-      }
-      if (scrollPos.scrollLeft != null) {
-        setScrollLeft(cm, scrollPos.scrollLeft);
-        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
-      }
-      if (!changed) break;
-    }
-    return coords;
-  }
-
-  // Scroll a given set of coordinates into view (immediately).
-  function scrollIntoView(cm, x1, y1, x2, y2) {
-    var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
-    if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
-    if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
-  }
-
-  // Calculate a new scroll position needed to scroll the given
-  // rectangle into view. Returns an object with scrollTop and
-  // scrollLeft properties. When these are undefined, the
-  // vertical/horizontal position does not need to be adjusted.
-  function calculateScrollPos(cm, x1, y1, x2, y2) {
-    var display = cm.display, snapMargin = textHeight(cm.display);
-    if (y1 < 0) y1 = 0;
-    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
-    var screen = displayHeight(cm), result = {};
-    if (y2 - y1 > screen) y2 = y1 + screen;
-    var docBottom = cm.doc.height + paddingVert(display);
-    var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
-    if (y1 < screentop) {
-      result.scrollTop = atTop ? 0 : y1;
-    } else if (y2 > screentop + screen) {
-      var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
-      if (newTop != screentop) result.scrollTop = newTop;
-    }
-
-    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
-    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
-    var tooWide = x2 - x1 > screenw;
-    if (tooWide) x2 = x1 + screenw;
-    if (x1 < 10)
-      result.scrollLeft = 0;
-    else if (x1 < screenleft)
-      result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
-    else if (x2 > screenw + screenleft - 3)
-      result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
-    return result;
-  }
-
-  // Store a relative adjustment to the scroll position in the current
-  // operation (to be applied when the operation finishes).
-  function addToScrollPos(cm, left, top) {
-    if (left != null || top != null) resolveScrollToPos(cm);
-    if (left != null)
-      cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
-    if (top != null)
-      cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
-  }
-
-  // Make sure that at the end of the operation the current cursor is
-  // shown.
-  function ensureCursorVisible(cm) {
-    resolveScrollToPos(cm);
-    var cur = cm.getCursor(), from = cur, to = cur;
-    if (!cm.options.lineWrapping) {
-      from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
-      to = Pos(cur.line, cur.ch + 1);
-    }
-    cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
-  }
-
-  // When an operation has its scrollToPos property set, and another
-  // scroll action is applied before the end of the operation, this
-  // 'simulates' scrolling that position into view in a cheap way, so
-  // that the effect of intermediate scroll commands is not ignored.
-  function resolveScrollToPos(cm) {
-    var range = cm.curOp.scrollToPos;
-    if (range) {
-      cm.curOp.scrollToPos = null;
-      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
-      var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
-                                    Math.min(from.top, to.top) - range.margin,
-                                    Math.max(from.right, to.right),
-                                    Math.max(from.bottom, to.bottom) + range.margin);
-      cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
-    }
-  }
-
-  // API UTILITIES
-
-  // Indent the given line. The how parameter can be "smart",
-  // "add"/null, "subtract", or "prev". When aggressive is false
-  // (typically set to true for forced single-line indents), empty
-  // lines are not indented, and places where the mode returns Pass
-  // are left alone.
-  function indentLine(cm, n, how, aggressive) {
-    var doc = cm.doc, state;
-    if (how == null) how = "add";
-    if (how == "smart") {
-      // Fall back to "prev" when the mode doesn't have an indentation
-      // method.
-      if (!doc.mode.indent) how = "prev";
-      else state = getStateBefore(cm, n);
-    }
-
-    var tabSize = cm.options.tabSize;
-    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
-    if (line.stateAfter) line.stateAfter = null;
-    var curSpaceString = line.text.match(/^\s*/)[0], indentation;
-    if (!aggressive && !/\S/.test(line.text)) {
-      indentation = 0;
-      how = "not";
-    } else if (how == "smart") {
-      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
-      if (indentation == Pass || indentation > 150) {
-        if (!aggressive) return;
-        how = "prev";
-      }
-    }
-    if (how == "prev") {
-      if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
-      else indentation = 0;
-    } else if (how == "add") {
-      indentation = curSpace + cm.options.indentUnit;
-    } else if (how == "subtract") {
-      indentation = curSpace - cm.options.indentUnit;
-    } else if (typeof how == "number") {
-      indentation = curSpace + how;
-    }
-    indentation = Math.max(0, indentation);
-
-    var indentString = "", pos = 0;
-    if (cm.options.indentWithTabs)
-      for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
-    if (pos < indentation) indentString += spaceStr(indentation - pos);
-
-    if (indentString != curSpaceString) {
-      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
-      line.stateAfter = null;
-      return true;
-    } else {
-      // Ensure that, if the cursor was in the whitespace at the start
-      // of the line, it is moved to the end of that space.
-      for (var i = 0; i < doc.sel.ranges.length; i++) {
-        var range = doc.sel.ranges[i];
-        if (range.head.line == n && range.head.ch < curSpaceString.length) {
-          var pos = Pos(n, curSpaceString.length);
-          replaceOneSelection(doc, i, new Range(pos, pos));
-          break;
-        }
-      }
-    }
-  }
-
-  // Utility for applying a change to a line by handle or number,
-  // returning the number and optionally registering the line as
-  // changed.
-  function changeLine(doc, handle, changeType, op) {
-    var no = handle, line = handle;
-    if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
-    else no = lineNo(handle);
-    if (no == null) return null;
-    if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
-    return line;
-  }
-
-  // Helper for deleting text near the selection(s), used to implement
-  // backspace, delete, and similar functionality.
-  function deleteNearSelection(cm, compute) {
-    var ranges = cm.doc.sel.ranges, kill = [];
-    // Build up a set of ranges to kill first, merging overlapping
-    // ranges.
-    for (var i = 0; i < ranges.length; i++) {
-      var toKill = compute(ranges[i]);
-      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
-        var replaced = kill.pop();
-        if (cmp(replaced.from, toKill.from) < 0) {
-          toKill.from = replaced.from;
-          break;
-        }
-      }
-      kill.push(toKill);
-    }
-    // Next, remove those actual ranges.
-    runInOp(cm, function() {
-      for (var i = kill.length - 1; i >= 0; i--)
-        replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
-      ensureCursorVisible(cm);
-    });
-  }
-
-  // Used for horizontal relative motion. Dir is -1 or 1 (left or
-  // right), unit can be "char", "column" (like char, but doesn't
-  // cross line boundaries), "word" (across next word), or "group" (to
-  // the start of next group of word or non-word-non-whitespace
-  // chars). The visually param controls whether, in right-to-left
-  // text, direction 1 means to move towards the next index in the
-  // string, or towards the character to the right of the current
-  // position. The resulting position will have a hitSide=true
-  // property if it reached the end of the document.
-  function findPosH(doc, pos, dir, unit, visually) {
-    var line = pos.line, ch = pos.ch, origDir = dir;
-    var lineObj = getLine(doc, line);
-    var possible = true;
-    function findNextLine() {
-      var l = line + dir;
-      if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
-      line = l;
-      return lineObj = getLine(doc, l);
-    }
-    function moveOnce(boundToLine) {
-      var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
-      if (next == null) {
-        if (!boundToLine && findNextLine()) {
-          if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
-          else ch = dir < 0 ? lineObj.text.length : 0;
-        } else return (possible = false);
-      } else ch = next;
-      return true;
-    }
-
-    if (unit == "char") moveOnce();
-    else if (unit == "column") moveOnce(true);
-    else if (unit == "word" || unit == "group") {
-      var sawType = null, group = unit == "group";
-      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
-      for (var first = true;; first = false) {
-        if (dir < 0 && !moveOnce(!first)) break;
-        var cur = lineObj.text.charAt(ch) || "\n";
-        var type = isWordChar(cur, helper) ? "w"
-          : group && cur == "\n" ? "n"
-          : !group || /\s/.test(cur) ? null
-          : "p";
-        if (group && !first && !type) type = "s";
-        if (sawType && sawType != type) {
-          if (dir < 0) {dir = 1; moveOnce();}
-          break;
-        }
-
-        if (type) sawType = type;
-        if (dir > 0 && !moveOnce(!first)) break;
-      }
-    }
-    var result = skipAtomic(doc, Pos(line, ch), origDir, true);
-    if (!possible) result.hitSide = true;
-    return result;
-  }
-
-  // For relative vertical movement. Dir may be -1 or 1. Unit can be
-  // "page" or "line". The resulting position will have a hitSide=true
-  // property if it reached the end of the document.
-  function findPosV(cm, pos, dir, unit) {
-    var doc = cm.doc, x = pos.left, y;
-    if (unit == "page") {
-      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
-      y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
-    } else if (unit == "line") {
-      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
-    }
-    for (;;) {
-      var target = coordsChar(cm, x, y);
-      if (!target.outside) break;
-      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
-      y += dir * 5;
-    }
-    return target;
-  }
-
-  // EDITOR METHODS
-
-  // The publicly visible API. Note that methodOp(f) means
-  // 'wrap f in an operation, performed on its `this` parameter'.
-
-  // This is not the complete set of editor methods. Most of the
-  // methods defined on the Doc type are also injected into
-  // CodeMirror.prototype, for backwards compatibility and
-  // convenience.
-
-  CodeMirror.prototype = {
-    constructor: CodeMirror,
-    focus: function(){window.focus(); this.display.input.focus();},
-
-    setOption: function(option, value) {
-      var options = this.options, old = options[option];
-      if (options[option] == value && option != "mode") return;
-      options[option] = value;
-      if (optionHandlers.hasOwnProperty(option))
-        operation(this, optionHandlers[option])(this, value, old);
-    },
-
-    getOption: function(option) {return this.options[option];},
-    getDoc: function() {return this.doc;},
-
-    addKeyMap: function(map, bottom) {
-      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
-    },
-    removeKeyMap: function(map) {
-      var maps = this.state.keyMaps;
-      for (var i = 0; i < maps.length; ++i)
-        if (maps[i] == map || maps[i].name == map) {
-          maps.splice(i, 1);
-          return true;
-        }
-    },
-
-    addOverlay: methodOp(function(spec, options) {
-      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
-      if (mode.startState) throw new Error("Overlays may not be stateful.");
-      this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
-      this.state.modeGen++;
-      regChange(this);
-    }),
-    removeOverlay: methodOp(function(spec) {
-      var overlays = this.state.overlays;
-      for (var i = 0; i < overlays.length; ++i) {
-        var cur = overlays[i].modeSpec;
-        if (cur == spec || typeof spec == "string" && cur.name == spec) {
-          overlays.splice(i, 1);
-          this.state.modeGen++;
-          regChange(this);
-          return;
-        }
-      }
-    }),
-
-    indentLine: methodOp(function(n, dir, aggressive) {
-      if (typeof dir != "string" && typeof dir != "number") {
-        if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
-        else dir = dir ? "add" : "subtract";
-      }
-      if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
-    }),
-    indentSelection: methodOp(function(how) {
-      var ranges = this.doc.sel.ranges, end = -1;
-      for (var i = 0; i < ranges.length; i++) {
-        var range = ranges[i];
-        if (!range.empty()) {
-          var from = range.from(), to = range.to();
-          var start = Math.max(end, from.line);
-          end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
-          for (var j = start; j < end; ++j)
-            indentLine(this, j, how);
-          var newRanges = this.doc.sel.ranges;
-          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
-            replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
-        } else if (range.head.line > end) {
-          indentLine(this, range.head.line, how, true);
-          end = range.head.line;
-          if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
-        }
-      }
-    }),
-
-    // Fetch the parser token for a given character. Useful for hacks
-    // that want to inspect the mode state (say, for completion).
-    getTokenAt: function(pos, precise) {
-      return takeToken(this, pos, precise);
-    },
-
-    getLineTokens: function(line, precise) {
-      return takeToken(this, Pos(line), precise, true);
-    },
-
-    getTokenTypeAt: function(pos) {
-      pos = clipPos(this.doc, pos);
-      var styles = getLineStyles(this, getLine(this.doc, pos.line));
-      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
-      var type;
-      if (ch == 0) type = styles[2];
-      else for (;;) {
-        var mid = (before + after) >> 1;
-        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
-        else if (styles[mid * 2 + 1] < ch) before = mid + 1;
-        else { type = styles[mid * 2 + 2]; break; }
-      }
-      var cut = type ? type.indexOf("cm-overlay ") : -1;
-      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
-    },
-
-    getModeAt: function(pos) {
-      var mode = this.doc.mode;
-      if (!mode.innerMode) return mode;
-      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
-    },
-
-    getHelper: function(pos, type) {
-      return this.getHelpers(pos, type)[0];
-    },
-
-    getHelpers: function(pos, type) {
-      var found = [];
-      if (!helpers.hasOwnProperty(type)) return found;
-      var help = helpers[type], mode = this.getModeAt(pos);
-      if (typeof mode[type] == "string") {
-        if (help[mode[type]]) found.push(help[mode[type]]);
-      } else if (mode[type]) {
-        for (var i = 0; i < mode[type].length; i++) {
-          var val = help[mode[type][i]];
-          if (val) found.push(val);
-        }
-      } else if (mode.helperType && help[mode.helperType]) {
-        found.push(help[mode.helperType]);
-      } else if (help[mode.name]) {
-        found.push(help[mode.name]);
-      }
-      for (var i = 0; i < help._global.length; i++) {
-        var cur = help._global[i];
-        if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
-          found.push(cur.val);
-      }
-      return found;
-    },
-
-    getStateAfter: function(line, precise) {
-      var doc = this.doc;
-      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
-      return getStateBefore(this, line + 1, precise);
-    },
-
-    cursorCoords: function(start, mode) {
-      var pos, range = this.doc.sel.primary();
-      if (start == null) pos = range.head;
-      else if (typeof start == "object") pos = clipPos(this.doc, start);
-      else pos = start ? range.from() : range.to();
-      return cursorCoords(this, pos, mode || "page");
-    },
-
-    charCoords: function(pos, mode) {
-      return charCoords(this, clipPos(this.doc, pos), mode || "page");
-    },
-
-    coordsChar: function(coords, mode) {
-      coords = fromCoordSystem(this, coords, mode || "page");
-      return coordsChar(this, coords.left, coords.top);
-    },
-
-    lineAtHeight: function(height, mode) {
-      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
-      return lineAtHeight(this.doc, height + this.display.viewOffset);
-    },
-    heightAtLine: function(line, mode) {
-      var end = false, lineObj;
-      if (typeof line == "number") {
-        var last = this.doc.first + this.doc.size - 1;
-        if (line < this.doc.first) line = this.doc.first;
-        else if (line > last) { line = last; end = true; }
-        lineObj = getLine(this.doc, line);
-      } else {
-        lineObj = line;
-      }
-      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
-        (end ? this.doc.height - heightAtLine(lineObj) : 0);
-    },
-
-    defaultTextHeight: function() { return textHeight(this.display); },
-    defaultCharWidth: function() { return charWidth(this.display); },
-
-    setGutterMarker: methodOp(function(line, gutterID, value) {
-      return changeLine(this.doc, line, "gutter", function(line) {
-        var markers = line.gutterMarkers || (line.gutterMarkers = {});
-        markers[gutterID] = value;
-        if (!value && isEmpty(markers)) line.gutterMarkers = null;
-        return true;
-      });
-    }),
-
-    clearGutter: methodOp(function(gutterID) {
-      var cm = this, doc = cm.doc, i = doc.first;
-      doc.iter(function(line) {
-        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
-          line.gutterMarkers[gutterID] = null;
-          regLineChange(cm, i, "gutter");
-          if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
-        }
-        ++i;
-      });
-    }),
-
-    lineInfo: function(line) {
-      if (typeof line == "number") {
-        if (!isLine(this.doc, line)) return null;
-        var n = line;
-        line = getLine(this.doc, line);
-        if (!line) return null;
-      } else {
-        var n = lineNo(line);
-        if (n == null) return null;
-      }
-      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
-              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
-              widgets: line.widgets};
-    },
-
-    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
-
-    addWidget: function(pos, node, scroll, vert, horiz) {
-      var display = this.display;
-      pos = cursorCoords(this, clipPos(this.doc, pos));
-      var top = pos.bottom, left = pos.left;
-      node.style.position = "absolute";
-      node.setAttribute("cm-ignore-events", "true");
-      this.display.input.setUneditable(node);
-      display.sizer.appendChild(node);
-      if (vert == "over") {
-        top = pos.top;
-      } else if (vert == "above" || vert == "near") {
-        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
-        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
-        // Default to positioning above (if specified and possible); otherwise default to positioning below
-        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
-          top = pos.top - node.offsetHeight;
-        else if (pos.bottom + node.offsetHeight <= vspace)
-          top = pos.bottom;
-        if (left + node.offsetWidth > hspace)
-          left = hspace - node.offsetWidth;
-      }
-      node.style.top = top + "px";
-      node.style.left = node.style.right = "";
-      if (horiz == "right") {
-        left = display.sizer.clientWidth - node.offsetWidth;
-        node.style.right = "0px";
-      } else {
-        if (horiz == "left") left = 0;
-        else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
-        node.style.left = left + "px";
-      }
-      if (scroll)
-        scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
-    },
-
-    triggerOnKeyDown: methodOp(onKeyDown),
-    triggerOnKeyPress: methodOp(onKeyPress),
-    triggerOnKeyUp: onKeyUp,
-
-    execCommand: function(cmd) {
-      if (commands.hasOwnProperty(cmd))
-        return commands[cmd](this);
-    },
-
-    triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
-
-    findPosH: function(from, amount, unit, visually) {
-      var dir = 1;
-      if (amount < 0) { dir = -1; amount = -amount; }
-      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
-        cur = findPosH(this.doc, cur, dir, unit, visually);
-        if (cur.hitSide) break;
-      }
-      return cur;
-    },
-
-    moveH: methodOp(function(dir, unit) {
-      var cm = this;
-      cm.extendSelectionsBy(function(range) {
-        if (cm.display.shift || cm.doc.extend || range.empty())
-          return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
-        else
-          return dir < 0 ? range.from() : range.to();
-      }, sel_move);
-    }),
-
-    deleteH: methodOp(function(dir, unit) {
-      var sel = this.doc.sel, doc = this.doc;
-      if (sel.somethingSelected())
-        doc.replaceSelection("", null, "+delete");
-      else
-        deleteNearSelection(this, function(range) {
-          var other = findPosH(doc, range.head, dir, unit, false);
-          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
-        });
-    }),
-
-    findPosV: function(from, amount, unit, goalColumn) {
-      var dir = 1, x = goalColumn;
-      if (amount < 0) { dir = -1; amount = -amount; }
-      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
-        var coords = cursorCoords(this, cur, "div");
-        if (x == null) x = coords.left;
-        else coords.left = x;
-        cur = findPosV(this, coords, dir, unit);
-        if (cur.hitSide) break;
-      }
-      return cur;
-    },
-
-    moveV: methodOp(function(dir, unit) {
-      var cm = this, doc = this.doc, goals = [];
-      var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
-      doc.extendSelectionsBy(function(range) {
-        if (collapse)
-          return dir < 0 ? range.from() : range.to();
-        var headPos = cursorCoords(cm, range.head, "div");
-        if (range.goalColumn != null) headPos.left = range.goalColumn;
-        goals.push(headPos.left);
-        var pos = findPosV(cm, headPos, dir, unit);
-        if (unit == "page" && range == doc.sel.primary())
-          addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
-        return pos;
-      }, sel_move);
-      if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
-        doc.sel.ranges[i].goalColumn = goals[i];
-    }),
-
-    // Find the word at the given position (as returned by coordsChar).
-    findWordAt: function(pos) {
-      var doc = this.doc, line = getLine(doc, pos.line).text;
-      var start = pos.ch, end = pos.ch;
-      if (line) {
-        var helper = this.getHelper(pos, "wordChars");
-        if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
-        var startChar = line.charAt(start);
-        var check = isWordChar(startChar, helper)
-          ? function(ch) { return isWordChar(ch, helper); }
-          : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
-          : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
-        while (start > 0 && check(line.charAt(start - 1))) --start;
-        while (end < line.length && check(line.charAt(end))) ++end;
-      }
-      return new Range(Pos(pos.line, start), Pos(pos.line, end));
-    },
-
-    toggleOverwrite: function(value) {
-      if (value != null && value == this.state.overwrite) return;
-      if (this.state.overwrite = !this.state.overwrite)
-        addClass(this.display.cursorDiv, "CodeMirror-overwrite");
-      else
-        rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
-
-      signal(this, "overwriteToggle", this, this.state.overwrite);
-    },
-    hasFocus: function() { return this.display.input.getField() == activeElt(); },
-
-    scrollTo: methodOp(function(x, y) {
-      if (x != null || y != null) resolveScrollToPos(this);
-      if (x != null) this.curOp.scrollLeft = x;
-      if (y != null) this.curOp.scrollTop = y;
-    }),
-    getScrollInfo: function() {
-      var scroller = this.display.scroller;
-      return {left: scroller.scrollLeft, top: scroller.scrollTop,
-              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
-              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
-              clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
-    },
-
-    scrollIntoView: methodOp(function(range, margin) {
-      if (range == null) {
-        range = {from: this.doc.sel.primary().head, to: null};
-        if (margin == null) margin = this.options.cursorScrollMargin;
-      } else if (typeof range == "number") {
-        range = {from: Pos(range, 0), to: null};
-      } else if (range.from == null) {
-        range = {from: range, to: null};
-      }
-      if (!range.to) range.to = range.from;
-      range.margin = margin || 0;
-
-      if (range.from.line != null) {
-        resolveScrollToPos(this);
-        this.curOp.scrollToPos = range;
-      } else {
-        var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
-                                      Math.min(range.from.top, range.to.top) - range.margin,
-                                      Math.max(range.from.right, range.to.right),
-                                      Math.max(range.from.bottom, range.to.bottom) + range.margin);
-        this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
-      }
-    }),
-
-    setSize: methodOp(function(width, height) {
-      var cm = this;
-      function interpret(val) {
-        return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
-      }
-      if (width != null) cm.display.wrapper.style.width = interpret(width);
-      if (height != null) cm.display.wrapper.style.height = interpret(height);
-      if (cm.options.lineWrapping) clearLineMeasurementCache(this);
-      var lineNo = cm.display.viewFrom;
-      cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
-        if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
-          if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
-        ++lineNo;
-      });
-      cm.curOp.forceUpdate = true;
-      signal(cm, "refresh", this);
-    }),
-
-    operation: function(f){return runInOp(this, f);},
-
-    refresh: methodOp(function() {
-      var oldHeight = this.display.cachedTextHeight;
-      regChange(this);
-      this.curOp.forceUpdate = true;
-      clearCaches(this);
-      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
-      updateGutterSpace(this);
-      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
-        estimateLineHeights(this);
-      signal(this, "refresh", this);
-    }),
-
-    swapDoc: methodOp(function(doc) {
-      var old = this.doc;
-      old.cm = null;
-      attachDoc(this, doc);
-      clearCaches(this);
-      this.display.input.reset();
-      this.scrollTo(doc.scrollLeft, doc.scrollTop);
-      this.curOp.forceScroll = true;
-      signalLater(this, "swapDoc", this, old);
-      return old;
-    }),
-
-    getInputField: function(){return this.display.input.getField();},
-    getWrapperElement: function(){return this.display.wrapper;},
-    getScrollerElement: function(){return this.display.scroller;},
-    getGutterElement: function(){return this.display.gutters;}
-  };
-  eventMixin(CodeMirror);
-
-  // OPTION DEFAULTS
-
-  // The default configuration options.
-  var defaults = CodeMirror.defaults = {};
-  // Functions to run when options are changed.
-  var optionHandlers = CodeMirror.optionHandlers = {};
-
-  function option(name, deflt, handle, notOnInit) {
-    CodeMirror.defaults[name] = deflt;
-    if (handle) optionHandlers[name] =
-      notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
-  }
-
-  // Passed to option handlers when there is no old value.
-  var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
-
-  // These two are, on init, called from the constructor because they
-  // have to be initialized before the editor can start at all.
-  option("value", "", function(cm, val) {
-    cm.setValue(val);
-  }, true);
-  option("mode", null, function(cm, val) {
-    cm.doc.modeOption = val;
-    loadMode(cm);
-  }, true);
-
-  option("indentUnit", 2, loadMode, true);
-  option("indentWithTabs", false);
-  option("smartIndent", true);
-  option("tabSize", 4, function(cm) {
-    resetModeState(cm);
-    clearCaches(cm);
-    regChange(cm);
-  }, true);
-  option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
-    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
-    if (old != CodeMirror.Init) cm.refresh();
-  });
-  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
-  option("electricChars", true);
-  option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
-    throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
-  }, true);
-  option("rtlMoveVisually", !windows);
-  option("wholeLineUpdateBefore", true);
-
-  option("theme", "default", function(cm) {
-    themeChanged(cm);
-    guttersChanged(cm);
-  }, true);
-  option("keyMap", "default", function(cm, val, old) {
-    var next = getKeyMap(val);
-    var prev = old != CodeMirror.Init && getKeyMap(old);
-    if (prev && prev.detach) prev.detach(cm, next);
-    if (next.attach) next.attach(cm, prev || null);
-  });
-  option("extraKeys", null);
-
-  option("lineWrapping", false, wrappingChanged, true);
-  option("gutters", [], function(cm) {
-    setGuttersForLineNumbers(cm.options);
-    guttersChanged(cm);
-  }, true);
-  option("fixedGutter", true, function(cm, val) {
-    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
-    cm.refresh();
-  }, true);
-  option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
-  option("scrollbarStyle", "native", function(cm) {
-    initScrollbars(cm);
-    updateScrollbars(cm);
-    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
-    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
-  }, true);
-  option("lineNumbers", false, function(cm) {
-    setGuttersForLineNumbers(cm.options);
-    guttersChanged(cm);
-  }, true);
-  option("firstLineNumber", 1, guttersChanged, true);
-  option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
-  option("showCursorWhenSelecting", false, updateSelection, true);
-
-  option("resetSelectionOnContextMenu", true);
-  option("lineWiseCopyCut", true);
-
-  option("readOnly", false, function(cm, val) {
-    if (val == "nocursor") {
-      onBlur(cm);
-      cm.display.input.blur();
-      cm.display.disabled = true;
-    } else {
-      cm.display.disabled = false;
-      if (!val) cm.display.input.reset();
-    }
-  });
-  option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
-  option("dragDrop", true, dragDropChanged);
-
-  option("cursorBlinkRate", 530);
-  option("cursorScrollMargin", 0);
-  option("cursorHeight", 1, updateSelection, true);
-  option("singleCursorHeightPerLine", true, updateSelection, true);
-  option("workTime", 100);
-  option("workDelay", 100);
-  option("flattenSpans", true, resetModeState, true);
-  option("addModeClass", false, resetModeState, true);
-  option("pollInterval", 100);
-  option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
-  option("historyEventDelay", 1250);
-  option("viewportMargin", 10, function(cm){cm.refresh();}, true);
-  option("maxHighlightLength", 10000, resetModeState, true);
-  option("moveInputWithCursor", true, function(cm, val) {
-    if (!val) cm.display.input.resetPosition();
-  });
-
-  option("tabindex", null, function(cm, val) {
-    cm.display.input.getField().tabIndex = val || "";
-  });
-  option("autofocus", null);
-
-  // MODE DEFINITION AND QUERYING
-
-  // Known modes, by name and by MIME
-  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
-
-  // Extra arguments are stored as the mode's dependencies, which is
-  // used by (legacy) mechanisms like loadmode.js to automatically
-  // load a mode. (Preferred mechanism is the require/define calls.)
-  CodeMirror.defineMode = function(name, mode) {
-    if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
-    if (arguments.length > 2)
-      mode.dependencies = Array.prototype.slice.call(arguments, 2);
-    modes[name] = mode;
-  };
-
-  CodeMirror.defineMIME = function(mime, spec) {
-    mimeModes[mime] = spec;
-  };
-
-  // Given a MIME type, a {name, ...options} config object, or a name
-  // string, return a mode config object.
-  CodeMirror.resolveMode = function(spec) {
-    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
-      spec = mimeModes[spec];
-    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
-      var found = mimeModes[spec.name];
-      if (typeof found == "string") found = {name: found};
-      spec = createObj(found, spec);
-      spec.name = found.name;
-    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
-      return CodeMirror.resolveMode("application/xml");
-    }
-    if (typeof spec == "string") return {name: spec};
-    else return spec || {name: "null"};
-  };
-
-  // Given a mode spec (anything that resolveMode accepts), find and
-  // initialize an actual mode object.
-  CodeMirror.getMode = function(options, spec) {
-    var spec = CodeMirror.resolveMode(spec);
-    var mfactory = modes[spec.name];
-    if (!mfactory) return CodeMirror.getMode(options, "text/plain");
-    var modeObj = mfactory(options, spec);
-    if (modeExtensions.hasOwnProperty(spec.name)) {
-      var exts = modeExtensions[spec.name];
-      for (var prop in exts) {
-        if (!exts.hasOwnProperty(prop)) continue;
-        if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
-        modeObj[prop] = exts[prop];
-      }
-    }
-    modeObj.name = spec.name;
-    if (spec.helperType) modeObj.helperType = spec.helperType;
-    if (spec.modeProps) for (var prop in spec.modeProps)
-      modeObj[prop] = spec.modeProps[prop];
-
-    return modeObj;
-  };
-
-  // Minimal default mode.
-  CodeMirror.defineMode("null", function() {
-    return {token: function(stream) {stream.skipToEnd();}};
-  });
-  CodeMirror.defineMIME("text/plain", "null");
-
-  // This can be used to attach properties to mode objects from
-  // outside the actual mode definition.
-  var modeExtensions = CodeMirror.modeExtensions = {};
-  CodeMirror.extendMode = function(mode, properties) {
-    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
-    copyObj(properties, exts);
-  };
-
-  // EXTENSIONS
-
-  CodeMirror.defineExtension = function(name, func) {
-    CodeMirror.prototype[name] = func;
-  };
-  CodeMirror.defineDocExtension = function(name, func) {
-    Doc.prototype[name] = func;
-  };
-  CodeMirror.defineOption = option;
-
-  var initHooks = [];
-  CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
-
-  var helpers = CodeMirror.helpers = {};
-  CodeMirror.registerHelper = function(type, name, value) {
-    if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
-    helpers[type][name] = value;
-  };
-  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
-    CodeMirror.registerHelper(type, name, value);
-    helpers[type]._global.push({pred: predicate, val: value});
-  };
-
-  // MODE STATE HANDLING
-
-  // Utility functions for working with state. Exported because nested
-  // modes need to do this for their inner modes.
-
-  var copyState = CodeMirror.copyState = function(mode, state) {
-    if (state === true) return state;
-    if (mode.copyState) return mode.copyState(state);
-    var nstate = {};
-    for (var n in state) {
-      var val = state[n];
-      if (val instanceof Array) val = val.concat([]);
-      nstate[n] = val;
-    }
-    return nstate;
-  };
-
-  var startState = CodeMirror.startState = function(mode, a1, a2) {
-    return mode.startState ? mode.startState(a1, a2) : true;
-  };
-
-  // Given a mode and a state (for that mode), find the inner mode and
-  // state at the position that the state refers to.
-  CodeMirror.innerMode = function(mode, state) {
-    while (mode.innerMode) {
-      var info = mode.innerMode(state);
-      if (!info || info.mode == mode) break;
-      state = info.state;
-      mode = info.mode;
-    }
-    return info || {mode: mode, state: state};
-  };
-
-  // STANDARD COMMANDS
-
-  // Commands are parameter-less actions that can be performed on an
-  // editor, mostly used for keybindings.
-  var commands = CodeMirror.commands = {
-    selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
-    singleSelection: function(cm) {
-      cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
-    },
-    killLine: function(cm) {
-      deleteNearSelection(cm, function(range) {
-        if (range.empty()) {
-          var len = getLine(cm.doc, range.head.line).text.length;
-          if (range.head.ch == len && range.head.line < cm.lastLine())
-            return {from: range.head, to: Pos(range.head.line + 1, 0)};
-          else
-            return {from: range.head, to: Pos(range.head.line, len)};
-        } else {
-          return {from: range.from(), to: range.to()};
-        }
-      });
-    },
-    deleteLine: function(cm) {
-      deleteNearSelection(cm, function(range) {
-        return {from: Pos(range.from().line, 0),
-                to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
-      });
-    },
-    delLineLeft: function(cm) {
-      deleteNearSelection(cm, function(range) {
-        return {from: Pos(range.from().line, 0), to: range.from()};
-      });
-    },
-    delWrappedLineLeft: function(cm) {
-      deleteNearSelection(cm, function(range) {
-        var top = cm.charCoords(range.head, "div").top + 5;
-        var leftPos = cm.coordsChar({left: 0, top: top}, "div");
-        return {from: leftPos, to: range.from()};
-      });
-    },
-    delWrappedLineRight: function(cm) {
-      deleteNearSelection(cm, function(range) {
-        var top = cm.charCoords(range.head, "div").top + 5;
-        var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
-        return {from: range.from(), to: rightPos };
-      });
-    },
-    undo: function(cm) {cm.undo();},
-    redo: function(cm) {cm.redo();},
-    undoSelection: function(cm) {cm.undoSelection();},
-    redoSelection: function(cm) {cm.redoSelection();},
-    goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
-    goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
-    goLineStart: function(cm) {
-      cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
-                            {origin: "+move", bias: 1});
-    },
-    goLineStartSmart: function(cm) {
-      cm.extendSelectionsBy(function(range) {
-        return lineStartSmart(cm, range.head);
-      }, {origin: "+move", bias: 1});
-    },
-    goLineEnd: function(cm) {
-      cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
-                            {origin: "+move", bias: -1});
-    },
-    goLineRight: function(cm) {
-      cm.extendSelectionsBy(function(range) {
-        var top = cm.charCoords(range.head, "div").top + 5;
-        return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
-      }, sel_move);
-    },
-    goLineLeft: function(cm) {
-      cm.extendSelectionsBy(function(range) {
-        var top = cm.charCoords(range.head, "div").top + 5;
-        return cm.coordsChar({left: 0, top: top}, "div");
-      }, sel_move);
-    },
-    goLineLeftSmart: function(cm) {
-      cm.extendSelectionsBy(function(range) {
-        var top = cm.charCoords(range.head, "div").top + 5;
-        var pos = cm.coordsChar({left: 0, top: top}, "div");
-        if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
-        return pos;
-      }, sel_move);
-    },
-    goLineUp: function(cm) {cm.moveV(-1, "line");},
-    goLineDown: function(cm) {cm.moveV(1, "line");},
-    goPageUp: function(cm) {cm.moveV(-1, "page");},
-    goPageDown: function(cm) {cm.moveV(1, "page");},
-    goCharLeft: function(cm) {cm.moveH(-1, "char");},
-    goCharRight: function(cm) {cm.moveH(1, "char");},
-    goColumnLeft: function(cm) {cm.moveH(-1, "column");},
-    goColumnRight: function(cm) {cm.moveH(1, "column");},
-    goWordLeft: function(cm) {cm.moveH(-1, "word");},
-    goGroupRight: function(cm) {cm.moveH(1, "group");},
-    goGroupLeft: function(cm) {cm.moveH(-1, "group");},
-    goWordRight: function(cm) {cm.moveH(1, "word");},
-    delCharBefore: function(cm) {cm.deleteH(-1, "char");},
-    delCharAfter: function(cm) {cm.deleteH(1, "char");},
-    delWordBefore: function(cm) {cm.deleteH(-1, "word");},
-    delWordAfter: function(cm) {cm.deleteH(1, "word");},
-    delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
-    delGroupAfter: function(cm) {cm.deleteH(1, "group");},
-    indentAuto: function(cm) {cm.indentSelection("smart");},
-    indentMore: function(cm) {cm.indentSelection("add");},
-    indentLess: function(cm) {cm.indentSelection("subtract");},
-    insertTab: function(cm) {cm.replaceSelection("\t");},
-    insertSoftTab: function(cm) {
-      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
-      for (var i = 0; i < ranges.length; i++) {
-        var pos = ranges[i].from();
-        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
-        spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
-      }
-      cm.replaceSelections(spaces);
-    },
-    defaultTab: function(cm) {
-      if (cm.somethingSelected()) cm.indentSelection("add");
-      else cm.execCommand("insertTab");
-    },
-    transposeChars: function(cm) {
-      runInOp(cm, function() {
-        var ranges = cm.listSelections(), newSel = [];
-        for (var i = 0; i < ranges.length; i++) {
-          var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
-          if (line) {
-            if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
-            if (cur.ch > 0) {
-              cur = new Pos(cur.line, cur.ch + 1);
-              cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
-                              Pos(cur.line, cur.ch - 2), cur, "+transpose");
-            } else if (cur.line > cm.doc.first) {
-              var prev = getLine(cm.doc, cur.line - 1).text;
-              if (prev)
-                cm.replaceRange(line.charAt(0) + "\n" + prev.charAt(prev.length - 1),
-                                Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
-            }
-          }
-          newSel.push(new Range(cur, cur));
-        }
-        cm.setSelections(newSel);
-      });
-    },
-    newlineAndIndent: function(cm) {
-      runInOp(cm, function() {
-        var len = cm.listSelections().length;
-        for (var i = 0; i < len; i++) {
-          var range = cm.listSelections()[i];
-          cm.replaceRange("\n", range.anchor, range.head, "+input");
-          cm.indentLine(range.from().line + 1, null, true);
-          ensureCursorVisible(cm);
-        }
-      });
-    },
-    toggleOverwrite: function(cm) {cm.toggleOverwrite();}
-  };
-
-
-  // STANDARD KEYMAPS
-
-  var keyMap = CodeMirror.keyMap = {};
-
-  keyMap.basic = {
-    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
-    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
-    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
-    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
-    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
-    "Esc": "singleSelection"
-  };
-  // Note that the save and find-related commands aren't defined by
-  // default. User code or addons can define them. Unknown commands
-  // are simply ignored.
-  keyMap.pcDefault = {
-    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
-    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
-    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
-    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
-    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
-    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
-    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
-    fallthrough: "basic"
-  };
-  // Very basic readline/emacs-style bindings, which are standard on Mac.
-  keyMap.emacsy = {
-    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
-    "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
-    "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
-    "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
-  };
-  keyMap.macDefault = {
-    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
-    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
-    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
-    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
-    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
-    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
-    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
-    fallthrough: ["basic", "emacsy"]
-  };
-  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
-
-  // KEYMAP DISPATCH
-
-  function normalizeKeyName(name) {
-    var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
-    var alt, ctrl, shift, cmd;
-    for (var i = 0; i < parts.length - 1; i++) {
-      var mod = parts[i];
-      if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
-      else if (/^a(lt)?$/i.test(mod)) alt = true;
-      else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
-      else if (/^s(hift)$/i.test(mod)) shift = true;
-      else throw new Error("Unrecognized modifier name: " + mod);
-    }
-    if (alt) name = "Alt-" + name;
-    if (ctrl) name = "Ctrl-" + name;
-    if (cmd) name = "Cmd-" + name;
-    if (shift) name = "Shift-" + name;
-    return name;
-  }
-
-  // This is a kludge to keep keymaps mostly working as raw objects
-  // (backwards compatibility) while at the same time support features
-  // like normalization and multi-stroke key bindings. It compiles a
-  // new normalized keymap, and then updates the old object to reflect
-  // this.
-  CodeMirror.normalizeKeyMap = function(keymap) {
-    var copy = {};
-    for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
-      var value = keymap[keyname];
-      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
-      if (value == "...") { delete keymap[keyname]; continue; }
-
-      var keys = map(keyname.split(" "), normalizeKeyName);
-      for (var i = 0; i < keys.length; i++) {
-        var val, name;
-        if (i == keys.length - 1) {
-          name = keys.join(" ");
-          val = value;
-        } else {
-          name = keys.slice(0, i + 1).join(" ");
-          val = "...";
-        }
-        var prev = copy[name];
-        if (!prev) copy[name] = val;
-        else if (prev != val) throw new Error("Inconsistent bindings for " + name);
-      }
-      delete keymap[keyname];
-    }
-    for (var prop in copy) keymap[prop] = copy[prop];
-    return keymap;
-  };
-
-  var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
-    map = getKeyMap(map);
-    var found = map.call ? map.call(key, context) : map[key];
-    if (found === false) return "nothing";
-    if (found === "...") return "multi";
-    if (found != null && handle(found)) return "handled";
-
-    if (map.fallthrough) {
-      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
-        return lookupKey(key, map.fallthrough, handle, context);
-      for (var i = 0; i < map.fallthrough.length; i++) {
-        var result = lookupKey(key, map.fallthrough[i], handle, context);
-        if (result) return result;
-      }
-    }
-  };
-
-  // Modifier key presses don't count as 'real' key presses for the
-  // purpose of keymap fallthrough.
-  var isModifierKey = CodeMirror.isModifierKey = function(value) {
-    var name = typeof value == "string" ? value : keyNames[value.keyCode];
-    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
-  };
-
-  // Look up the name of a key as indicated by an event object.
-  var keyName = CodeMirror.keyName = function(event, noShift) {
-    if (presto && event.keyCode == 34 && event["char"]) return false;
-    var base = keyNames[event.keyCode], name = base;
-    if (name == null || event.altGraphKey) return false;
-    if (event.altKey && base != "Alt") name = "Alt-" + name;
-    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
-    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
-    if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
-    return name;
-  };
-
-  function getKeyMap(val) {
-    return typeof val == "string" ? keyMap[val] : val;
-  }
-
-  // FROMTEXTAREA
-
-  CodeMirror.fromTextArea = function(textarea, options) {
-    options = options ? copyObj(options) : {};
-    options.value = textarea.value;
-    if (!options.tabindex && textarea.tabIndex)
-      options.tabindex = textarea.tabIndex;
-    if (!options.placeholder && textarea.placeholder)
-      options.placeholder = textarea.placeholder;
-    // Set autofocus to true if this textarea is focused, or if it has
-    // autofocus and no other element is focused.
-    if (options.autofocus == null) {
-      var hasFocus = activeElt();
-      options.autofocus = hasFocus == textarea ||
-        textarea.getAttribute("autofocus") != null && hasFocus == document.body;
-    }
-
-    function save() {textarea.value = cm.getValue();}
-    if (textarea.form) {
-      on(textarea.form, "submit", save);
-      // Deplorable hack to make the submit method do the right thing.
-      if (!options.leaveSubmitMethodAlone) {
-        var form = textarea.form, realSubmit = form.submit;
-        try {
-          var wrappedSubmit = form.submit = function() {
-            save();
-            form.submit = realSubmit;
-            form.submit();
-            form.submit = wrappedSubmit;
-          };
-        } catch(e) {}
-      }
-    }
-
-    options.finishInit = function(cm) {
-      cm.save = save;
-      cm.getTextArea = function() { return textarea; };
-      cm.toTextArea = function() {
-        cm.toTextArea = isNaN; // Prevent this from being ran twice
-        save();
-        textarea.parentNode.removeChild(cm.getWrapperElement());
-        textarea.style.display = "";
-        if (textarea.form) {
-          off(textarea.form, "submit", save);
-          if (typeof textarea.form.submit == "function")
-            textarea.form.submit = realSubmit;
-        }
-      };
-    };
-
-    textarea.style.display = "none";
-    var cm = CodeMirror(function(node) {
-      textarea.parentNode.insertBefore(node, textarea.nextSibling);
-    }, options);
-    return cm;
-  };
-
-  // STRING STREAM
-
-  // Fed to the mode parsers, provides helper functions to make
-  // parsers more succinct.
-
-  var StringStream = CodeMirror.StringStream = function(string, tabSize) {
-    this.pos = this.start = 0;
-    this.string = string;
-    this.tabSize = tabSize || 8;
-    this.lastColumnPos = this.lastColumnValue = 0;
-    this.lineStart = 0;
-  };
-
-  StringStream.prototype = {
-    eol: function() {return this.pos >= this.string.length;},
-    sol: function() {return this.pos == this.lineStart;},
-    peek: function() {return this.string.charAt(this.pos) || undefined;},
-    next: function() {
-      if (this.pos < this.string.length)
-        return this.string.charAt(this.pos++);
-    },
-    eat: function(match) {
-      var ch = this.string.charAt(this.pos);
-      if (typeof match == "string") var ok = ch == match;
-      else var ok = ch && (match.test ? match.test(ch) : match(ch));
-      if (ok) {++this.pos; return ch;}
-    },
-    eatWhile: function(match) {
-      var start = this.pos;
-      while (this.eat(match)){}
-      return this.pos > start;
-    },
-    eatSpace: function() {
-      var start = this.pos;
-      while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
-      return this.pos > start;
-    },
-    skipToEnd: function() {this.pos = this.string.length;},
-    skipTo: function(ch) {
-      var found = this.string.indexOf(ch, this.pos);
-      if (found > -1) {this.pos = found; return true;}
-    },
-    backUp: function(n) {this.pos -= n;},
-    column: function() {
-      if (this.lastColumnPos < this.start) {
-        this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
-        this.lastColumnPos = this.start;
-      }
-      return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
-    },
-    indentation: function() {
-      return countColumn(this.string, null, this.tabSize) -
-        (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
-    },
-    match: function(pattern, consume, caseInsensitive) {
-      if (typeof pattern == "string") {
-        var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
-        var substr = this.string.substr(this.pos, pattern.length);
-        if (cased(substr) == cased(pattern)) {
-          if (consume !== false) this.pos += pattern.length;
-          return true;
-        }
-      } else {
-        var match = this.string.slice(this.pos).match(pattern);
-        if (match && match.index > 0) return null;
-        if (match && consume !== false) this.pos += match[0].length;
-        return match;
-      }
-    },
-    current: function(){return this.string.slice(this.start, this.pos);},
-    hideFirstChars: function(n, inner) {
-      this.lineStart += n;
-      try { return inner(); }
-      finally { this.lineStart -= n; }
-    }
-  };
-
-  // TEXTMARKERS
-
-  // Created with markText and setBookmark methods. A TextMarker is a
-  // handle that can be used to clear or find a marked position in the
-  // document. Line objects hold arrays (markedSpans) containing
-  // {from, to, marker} object pointing to such marker objects, and
-  // indicating that such a marker is present on that line. Multiple
-  // lines may point to the same marker when it spans across lines.
-  // The spans will have null for their from/to properties when the
-  // marker continues beyond the start/end of the line. Markers have
-  // links back to the lines they currently touch.
-
-  var nextMarkerId = 0;
-
-  var TextMarker = CodeMirror.TextMarker = function(doc, type) {
-    this.lines = [];
-    this.type = type;
-    this.doc = doc;
-    this.id = ++nextMarkerId;
-  };
-  eventMixin(TextMarker);
-
-  // Clear the marker.
-  TextMarker.prototype.clear = function() {
-    if (this.explicitlyCleared) return;
-    var cm = this.doc.cm, withOp = cm && !cm.curOp;
-    if (withOp) startOperation(cm);
-    if (hasHandler(this, "clear")) {
-      var found = this.find();
-      if (found) signalLater(this, "clear", found.from, found.to);
-    }
-    var min = null, max = null;
-    for (var i = 0; i < this.lines.length; ++i) {
-      var line = this.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this);
-      if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
-      else if (cm) {
-        if (span.to != null) max = lineNo(line);
-        if (span.from != null) min = lineNo(line);
-      }
-      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
-      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
-        updateLineHeight(line, textHeight(cm.display));
-    }
-    if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
-      var visual = visualLine(this.lines[i]), len = lineLength(visual);
-      if (len > cm.display.maxLineLength) {
-        cm.display.maxLine = visual;
-        cm.display.maxLineLength = len;
-        cm.display.maxLineChanged = true;
-      }
-    }
-
-    if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
-    this.lines.length = 0;
-    this.explicitlyCleared = true;
-    if (this.atomic && this.doc.cantEdit) {
-      this.doc.cantEdit = false;
-      if (cm) reCheckSelection(cm.doc);
-    }
-    if (cm) signalLater(cm, "markerCleared", cm, this);
-    if (withOp) endOperation(cm);
-    if (this.parent) this.parent.clear();
-  };
-
-  // Find the position of the marker in the document. Returns a {from,
-  // to} object by default. Side can be passed to get a specific side
-  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
-  // Pos objects returned contain a line object, rather than a line
-  // number (used to prevent looking up the same line twice).
-  TextMarker.prototype.find = function(side, lineObj) {
-    if (side == null && this.type == "bookmark") side = 1;
-    var from, to;
-    for (var i = 0; i < this.lines.length; ++i) {
-      var line = this.lines[i];
-      var span = getMarkedSpanFor(line.markedSpans, this);
-      if (span.from != null) {
-        from = Pos(lineObj ? line : lineNo(line), span.from);
-        if (side == -1) return from;
-      }
-      if (span.to != null) {
-        to = Pos(lineObj ? line : lineNo(line), span.to);
-        if (side == 1) return to;
-      }
-    }
-    return from && {from: from, to: to};
-  };
-
-  // Signals that the marker's widget changed, and surrounding layout
-  // should be recomputed.
-  TextMarker.prototype.changed = function() {
-    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
-    if (!pos || !cm) return;
-    runInOp(cm, function() {
-      var line = pos.line, lineN = lineNo(pos.line);
-      var view = findViewForLine(cm, lineN);
-      if (view) {
-        clearLineMeasurementCacheFor(view);
-        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
-      }
-      cm.curOp.updateMaxLine = true;
-      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
-        var oldHeight = widget.height;
-        widget.height = null;
-        var dHeight = widgetHeight(widget) - oldHeight;
-        if (dHeight)
-          updateLineHeight(line, line.height + dHeight);
-      }
-    });
-  };
-
-  TextMarker.prototype.attachLine = function(line) {
-    if (!this.lines.length && this.doc.cm) {
-      var op = this.doc.cm.curOp;
-      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
-        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
-    }
-    this.lines.push(line);
-  };
-  TextMarker.prototype.detachLine = function(line) {
-    this.lines.splice(indexOf(this.lines, line), 1);
-    if (!this.lines.length && this.doc.cm) {
-      var op = this.doc.cm.curOp;
-      (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
-    }
-  };
-
-  // Collapsed markers have unique ids, in order to be able to order
-  // them, which is needed for uniquely determining an outer marker
-  // when they overlap (they may nest, but not partially overlap).
-  var nextMarkerId = 0;
-
-  // Create a marker, wire it up to the right lines, and
-  function markText(doc, from, to, options, type) {
-    // Shared markers (across linked documents) are handled separately
-    // (markTextShared will call out to this again, once per
-    // document).
-    if (options && options.shared) return markTextShared(doc, from, to, options, type);
-    // Ensure we are in an operation.
-    if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
-
-    var marker = new TextMarker(doc, type), diff = cmp(from, to);
-    if (options) copyObj(options, marker, false);
-    // Don't connect empty markers unless clearWhenEmpty is false
-    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
-      return marker;
-    if (marker.replacedWith) {
-      // Showing up as a widget implies collapsed (widget replaces text)
-      marker.collapsed = true;
-      marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
-      if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
-      if (options.insertLeft) marker.widgetNode.insertLeft = true;
-    }
-    if (marker.collapsed) {
-      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
-          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
-        throw new Error("Inserting collapsed marker partially overlapping an existing one");
-      sawCollapsedSpans = true;
-    }
-
-    if (marker.addToHistory)
-      addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
-
-    var curLine = from.line, cm = doc.cm, updateMaxLine;
-    doc.iter(curLine, to.line + 1, function(line) {
-      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
-        updateMaxLine = true;
-      if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
-      addMarkedSpan(line, new MarkedSpan(marker,
-                                         curLine == from.line ? from.ch : null,
-                                         curLine == to.line ? to.ch : null));
-      ++curLine;
-    });
-    // lineIsHidden depends on the presence of the spans, so needs a second pass
-    if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
-      if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
-    });
-
-    if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
-
-    if (marker.readOnly) {
-      sawReadOnlySpans = true;
-      if (doc.history.done.length || doc.history.undone.length)
-        doc.clearHistory();
-    }
-    if (marker.collapsed) {
-      marker.id = ++nextMarkerId;
-      marker.atomic = true;
-    }
-    if (cm) {
-      // Sync editor state
-      if (updateMaxLine) cm.curOp.updateMaxLine = true;
-      if (marker.collapsed)
-        regChange(cm, from.line, to.line + 1);
-      else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
-        for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
-      if (marker.atomic) reCheckSelection(cm.doc);
-      signalLater(cm, "markerAdded", cm, marker);
-    }
-    return marker;
-  }
-
-  // SHARED TEXTMARKERS
-
-  // A shared marker spans multiple linked documents. It is
-  // implemented as a meta-marker-object controlling multiple normal
-  // markers.
-  var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
-    this.markers = markers;
-    this.primary = primary;
-    for (var i = 0; i < markers.length; ++i)
-      markers[i].parent = this;
-  };
-  eventMixin(SharedTextMarker);
-
-  SharedTextMarker.prototype.clear = function() {
-    if (this.explicitlyCleared) return;
-    this.explicitlyCleared = true;
-    for (var i = 0; i < this.markers.length; ++i)
-      this.markers[i].clear();
-    signalLater(this, "clear");
-  };
-  SharedTextMarker.prototype.find = function(side, lineObj) {
-    return this.primary.find(side, lineObj);
-  };
-
-  function markTextShared(doc, from, to, options, type) {
-    options = copyObj(options);
-    options.shared = false;
-    var markers = [markText(doc, from, to, options, type)], primary = markers[0];
-    var widget = options.widgetNode;
-    linkedDocs(doc, function(doc) {
-      if (widget) options.widgetNode = widget.cloneNode(true);
-      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
-      for (var i = 0; i < doc.linked.length; ++i)
-        if (doc.linked[i].isParent) return;
-      primary = lst(markers);
-    });
-    return new SharedTextMarker(markers, primary);
-  }
-
-  function findSharedMarkers(doc) {
-    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
-                         function(m) { return m.parent; });
-  }
-
-  function copySharedMarkers(doc, markers) {
-    for (var i = 0; i < markers.length; i++) {
-      var marker = markers[i], pos = marker.find();
-      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
-      if (cmp(mFrom, mTo)) {
-        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
-        marker.markers.push(subMark);
-        subMark.parent = marker;
-      }
-    }
-  }
-
-  function detachSharedMarkers(markers) {
-    for (var i = 0; i < markers.length; i++) {
-      var marker = markers[i], linked = [marker.primary.doc];;
-      linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
-      for (var j = 0; j < marker.markers.length; j++) {
-        var subMarker = marker.markers[j];
-        if (indexOf(linked, subMarker.doc) == -1) {
-          subMarker.parent = null;
-          marker.markers.splice(j--, 1);
-        }
-      }
-    }
-  }
-
-  // TEXTMARKER SPANS
-
-  function MarkedSpan(marker, from, to) {
-    this.marker = marker;
-    this.from = from; this.to = to;
-  }
-
-  // Search an array of spans for a span matching the given marker.
-  function getMarkedSpanFor(spans, marker) {
-    if (spans) for (var i = 0; i < spans.length; ++i) {
-      var span = spans[i];
-      if (span.marker == marker) return span;
-    }
-  }
-  // Remove a span from an array, returning undefined if no spans are
-  // left (we don't store arrays for lines without spans).
-  function removeMarkedSpan(spans, span) {
-    for (var r, i = 0; i < spans.length; ++i)
-      if (spans[i] != span) (r || (r = [])).push(spans[i]);
-    return r;
-  }
-  // Add a span to a line.
-  function addMarkedSpan(line, span) {
-    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
-    span.marker.attachLine(line);
-  }
-
-  // Used for the algorithm that adjusts markers for a change in the
-  // document. These functions cut an array of spans at a given
-  // character position, returning an array of remaining chunks (or
-  // undefined if nothing remains).
-  function markedSpansBefore(old, startCh, isInsert) {
-    if (old) for (var i = 0, nw; i < old.length; ++i) {
-      var span = old[i], marker = span.marker;
-      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
-      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
-        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
-        (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
-      }
-    }
-    return nw;
-  }
-  function markedSpansAfter(old, endCh, isInsert) {
-    if (old) for (var i = 0, nw; i < old.length; ++i) {
-      var span = old[i], marker = span.marker;
-      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
-      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
-        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
-        (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
-                                              span.to == null ? null : span.to - endCh));
-      }
-    }
-    return nw;
-  }
-
-  // Given a change object, compute the new set of marker spans that
-  // cover the line in which the change took place. Removes spans
-  // entirely within the change, reconnects spans belonging to the
-  // same marker that appear on both sides of the change, and cuts off
-  // spans partially within the change. Returns an array of span
-  // arrays with one element for each line in (after) the change.
-  function stretchSpansOverChange(doc, change) {
-    if (change.full) return null;
-    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
-    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
-    if (!oldFirst && !oldLast) return null;
-
-    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
-    // Get the spans that 'stick out' on both sides
-    var first = markedSpansBefore(oldFirst, startCh, isInsert);
-    var last = markedSpansAfter(oldLast, endCh, isInsert);
-
-    // Next, merge those two ends
-    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
-    if (first) {
-      // Fix up .to properties of first
-      for (var i = 0; i < first.length; ++i) {
-        var span = first[i];
-        if (span.to == null) {
-          var found = getMarkedSpanFor(last, span.marker);
-          if (!found) span.to = startCh;
-          else if (sameLine) span.to = found.to == null ? null : found.to + offset;
-        }
-      }
-    }
-    if (last) {
-      // Fix up .from in last (or move them into first in case of sameLine)
-      for (var i = 0; i < last.length; ++i) {
-        var span = last[i];
-        if (span.to != null) span.to += offset;
-        if (span.from == null) {
-          var found = getMarkedSpanFor(first, span.marker);
-          if (!found) {
-            span.from = offset;
-            if (sameLine) (first || (first = [])).push(span);
-          }
-        } else {
-          span.from += offset;
-          if (sameLine) (first || (first = [])).push(span);
-        }
-      }
-    }
-    // Make sure we didn't create any zero-length spans
-    if (first) first = clearEmptySpans(first);
-    if (last && last != first) last = clearEmptySpans(last);
-
-    var newMarkers = [first];
-    if (!sameLine) {
-      // Fill gap with whole-line-spans
-      var gap = change.text.length - 2, gapMarkers;
-      if (gap > 0 && first)
-        for (var i = 0; i < first.length; ++i)
-          if (first[i].to == null)
-            (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
-      for (var i = 0; i < gap; ++i)
-        newMarkers.push(gapMarkers);
-      newMarkers.push(last);
-    }
-    return newMarkers;
-  }
-
-  // Remove spans that are empty and don't have a clearWhenEmpty
-  // option of false.
-  function clearEmptySpans(spans) {
-    for (var i = 0; i < spans.length; ++i) {
-      var span = spans[i];
-      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
-        spans.splice(i--, 1);
-    }
-    if (!spans.length) return null;
-    return spans;
-  }
-
-  // Used for un/re-doing changes from the history. Combines the
-  // result of computing the existing spans with the set of spans that
-  // existed in the history (so that deleting around a span and then
-  // undoing brings back the span).
-  function mergeOldSpans(doc, change) {
-    var old = getOldSpans(doc, change);
-    var stretched = stretchSpansOverChange(doc, change);
-    if (!old) return stretched;
-    if (!stretched) return old;
-
-    for (var i = 0; i < old.length; ++i) {
-      var oldCur = old[i], stretchCur = stretched[i];
-      if (oldCur && stretchCur) {
-        spans: for (var j = 0; j < stretchCur.length; ++j) {
-          var span = stretchCur[j];
-          for (var k = 0; k < oldCur.length; ++k)
-            if (oldCur[k].marker == span.marker) continue spans;
-          oldCur.push(span);
-        }
-      } else if (stretchCur) {
-        old[i] = stretchCur;
-      }
-    }
-    return old;
-  }
-
-  // Used to 'clip' out readOnly ranges when making a change.
-  function removeReadOnlyRanges(doc, from, to) {
-    var markers = null;
-    doc.iter(from.line, to.line + 1, function(line) {
-      if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
-        var mark = line.markedSpans[i].marker;
-        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
-          (markers || (markers = [])).push(mark);
-      }
-    });
-    if (!markers) return null;
-    var parts = [{from: from, to: to}];
-    for (var i = 0; i < markers.length; ++i) {
-      var mk = markers[i], m = mk.find(0);
-      for (var j = 0; j < parts.length; ++j) {
-        var p = parts[j];
-        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
-        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
-        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
-          newParts.push({from: p.from, to: m.from});
-        if (dto > 0 || !mk.inclusiveRight && !dto)
-          newParts.push({from: m.to, to: p.to});
-        parts.splice.apply(parts, newParts);
-        j += newParts.length - 1;
-      }
-    }
-    return parts;
-  }
-
-  // Connect or disconnect spans from a line.
-  function detachMarkedSpans(line) {
-    var spans = line.markedSpans;
-    if (!spans) return;
-    for (var i = 0; i < spans.length; ++i)
-      spans[i].marker.detachLine(line);
-    line.markedSpans = null;
-  }
-  function attachMarkedSpans(line, spans) {
-    if (!spans) return;
-    for (var i = 0; i < spans.length; ++i)
-      spans[i].marker.attachLine(line);
-    line.markedSpans = spans;
-  }
-
-  // Helpers used when computing which overlapping collapsed span
-  // counts as the larger one.
-  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
-  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
-
-  // Returns a number indicating which of two overlapping collapsed
-  // spans is larger (and thus includes the other). Falls back to
-  // comparing ids when the spans cover exactly the same range.
-  function compareCollapsedMarkers(a, b) {
-    var lenDiff = a.lines.length - b.lines.length;
-    if (lenDiff != 0) return lenDiff;
-    var aPos = a.find(), bPos = b.find();
-    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
-    if (fromCmp) return -fromCmp;
-    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
-    if (toCmp) return toCmp;
-    return b.id - a.id;
-  }
-
-  // Find out whether a line ends or starts in a collapsed span. If
-  // so, return the marker for that span.
-  function collapsedSpanAtSide(line, start) {
-    var sps = sawCollapsedSpans && line.markedSpans, found;
-    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
-      sp = sps[i];
-      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
-          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
-        found = sp.marker;
-    }
-    return found;
-  }
-  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
-  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
-
-  // Test whether there exists a collapsed span that partially
-  // overlaps (covers the start or end, but not both) of a new span.
-  // Such overlap is not allowed.
-  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
-    var line = getLine(doc, lineNo);
-    var sps = sawCollapsedSpans && line.markedSpans;
-    if (sps) for (var i = 0; i < sps.length; ++i) {
-      var sp = sps[i];
-      if (!sp.marker.collapsed) continue;
-      var found = sp.marker.find(0);
-      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
-      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
-      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
-      if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
-          fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
-        return true;
-    }
-  }
-
-  // A visual line is a line as drawn on the screen. Folding, for
-  // example, can cause multiple logical lines to appear on the same
-  // visual line. This finds the start of the visual line that the
-  // given line is part of (usually that is the line itself).
-  function visualLine(line) {
-    var merged;
-    while (merged = collapsedSpanAtStart(line))
-      line = merged.find(-1, true).line;
-    return line;
-  }
-
-  // Returns an array of logical lines that continue the visual line
-  // started by the argument, or undefined if there are no such lines.
-  function visualLineContinued(line) {
-    var merged, lines;
-    while (merged = collapsedSpanAtEnd(line)) {
-      line = merged.find(1, true).line;
-      (lines || (lines = [])).push(line);
-    }
-    return lines;
-  }
-
-  // Get the line number of the start of the visual line that the
-  // given line number is part of.
-  function visualLineNo(doc, lineN) {
-    var line = getLine(doc, lineN), vis = visualLine(line);
-    if (line == vis) return lineN;
-    return lineNo(vis);
-  }
-  // Get the line number of the start of the next visual line after
-  // the given line.
-  function visualLineEndNo(doc, lineN) {
-    if (lineN > doc.lastLine()) return lineN;
-    var line = getLine(doc, lineN), merged;
-    if (!lineIsHidden(doc, line)) return lineN;
-    while (merged = collapsedSpanAtEnd(line))
-      line = merged.find(1, true).line;
-    return lineNo(line) + 1;
-  }
-
-  // Compute whether a line is hidden. Lines count as hidden when they
-  // are part of a visual line that starts with another line, or when
-  // they are entirely covered by collapsed, non-widget span.
-  function lineIsHidden(doc, line) {
-    var sps = sawCollapsedSpans && line.markedSpans;
-    if (sps) for (var sp, i = 0; i < sps.length; ++i) {
-      sp = sps[i];
-      if (!sp.marker.collapsed) continue;
-      if (sp.from == null) return true;
-      if (sp.marker.widgetNode) continue;
-      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
-        return true;
-    }
-  }
-  function lineIsHiddenInner(doc, line, span) {
-    if (span.to == null) {
-      var end = span.marker.find(1, true);
-      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
-    }
-    if (span.marker.inclusiveRight && span.to == line.text.length)
-      return true;
-    for (var sp, i = 0; i < line.markedSpans.length; ++i) {
-      sp = line.markedSpans[i];
-      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
-          (sp.to == null || sp.to != span.from) &&
-          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
-          lineIsHiddenInner(doc, line, sp)) return true;
-    }
-  }
-
-  // LINE WIDGETS
-
-  // Line widgets are block elements displayed above or below a line.
-
-  var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
-    if (options) for (var opt in options) if (options.hasOwnProperty(opt))
-      this[opt] = options[opt];
-    this.doc = doc;
-    this.node = node;
-  };
-  eventMixin(LineWidget);
-
-  function adjustScrollWhenAboveVisible(cm, line, diff) {
-    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
-      addToScrollPos(cm, null, diff);
-  }
-
-  LineWidget.prototype.clear = function() {
-    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
-    if (no == null || !ws) return;
-    for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
-    if (!ws.length) line.widgets = null;
-    var height = widgetHeight(this);
-    updateLineHeight(line, Math.max(0, line.height - height));
-    if (cm) runInOp(cm, function() {
-      adjustScrollWhenAboveVisible(cm, line, -height);
-      regLineChange(cm, no, "widget");
-    });
-  };
-  LineWidget.prototype.changed = function() {
-    var oldH = this.height, cm = this.doc.cm, line = this.line;
-    this.height = null;
-    var diff = widgetHeight(this) - oldH;
-    if (!diff) return;
-    updateLineHeight(line, line.height + diff);
-    if (cm) runInOp(cm, function() {
-      cm.curOp.forceUpdate = true;
-      adjustScrollWhenAboveVisible(cm, line, diff);
-    });
-  };
-
-  function widgetHeight(widget) {
-    if (widget.height != null) return widget.height;
-    var cm = widget.doc.cm;
-    if (!cm) return 0;
-    if (!contains(document.body, widget.node)) {
-      var parentStyle = "position: relative;";
-      if (widget.coverGutter)
-        parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
-      if (widget.noHScroll)
-        parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
-      removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
-    }
-    return widget.height = widget.node.offsetHeight;
-  }
-
-  function addLineWidget(doc, handle, node, options) {
-    var widget = new LineWidget(doc, node, options);
-    var cm = doc.cm;
-    if (cm && widget.noHScroll) cm.display.alignWidgets = true;
-    changeLine(doc, handle, "widget", function(line) {
-      var widgets = line.widgets || (line.widgets = []);
-      if (widget.insertAt == null) widgets.push(widget);
-      else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
-      widget.line = line;
-      if (cm && !lineIsHidden(doc, line)) {
-        var aboveVisible = heightAtLine(line) < doc.scrollTop;
-        updateLineHeight(line, line.height + widgetHeight(widget));
-        if (aboveVisible) addToScrollPos(cm, null, widget.height);
-        cm.curOp.forceUpdate = true;
-      }
-      return true;
-    });
-    return widget;
-  }
-
-  // LINE DATA STRUCTURE
-
-  // Line objects. These hold state related to a line, including
-  // highlighting info (the styles array).
-  var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
-    this.text = text;
-    attachMarkedSpans(this, markedSpans);
-    this.height = estimateHeight ? estimateHeight(this) : 1;
-  };
-  eventMixin(Line);
-  Line.prototype.lineNo = function() { return lineNo(this); };
-
-  // Change the content (text, markers) of a line. Automatically
-  // invalidates cached information and tries to re-estimate the
-  // line's height.
-  function updateLine(line, text, markedSpans, estimateHeight) {
-    line.text = text;
-    if (line.stateAfter) line.stateAfter = null;
-    if (line.styles) line.styles = null;
-    if (line.order != null) line.order = null;
-    detachMarkedSpans(line);
-    attachMarkedSpans(line, markedSpans);
-    var estHeight = estimateHeight ? estimateHeight(line) : 1;
-    if (estHeight != line.height) updateLineHeight(line, estHeight);
-  }
-
-  // Detach a line from the document tree and its markers.
-  function cleanUpLine(line) {
-    line.parent = null;
-    detachMarkedSpans(line);
-  }
-
-  function extractLineClasses(type, output) {
-    if (type) for (;;) {
-      var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
-      if (!lineClass) break;
-      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
-      var prop = lineClass[1] ? "bgClass" : "textClass";
-      if (output[prop] == null)
-        output[prop] = lineClass[2];
-      else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
-        output[prop] += " " + lineClass[2];
-    }
-    return type;
-  }
-
-  function callBlankLine(mode, state) {
-    if (mode.blankLine) return mode.blankLine(state);
-    if (!mode.innerMode) return;
-    var inner = CodeMirror.innerMode(mode, state);
-    if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
-  }
-
-  function readToken(mode, stream, state, inner) {
-    for (var i = 0; i < 10; i++) {
-      if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
-      var style = mode.token(stream, state);
-      if (stream.pos > stream.start) return style;
-    }
-    throw new Error("Mode " + mode.name + " failed to advance stream.");
-  }
-
-  // Utility for getTokenAt and getLineTokens
-  function takeToken(cm, pos, precise, asArray) {
-    function getObj(copy) {
-      return {start: stream.start, end: stream.pos,
-              string: stream.current(),
-              type: style || null,
-              state: copy ? copyState(doc.mode, state) : state};
-    }
-
-    var doc = cm.doc, mode = doc.mode, style;
-    pos = clipPos(doc, pos);
-    var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
-    var stream = new StringStream(line.text, cm.options.tabSize), tokens;
-    if (asArray) tokens = [];
-    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
-      stream.start = stream.pos;
-      style = readToken(mode, stream, state);
-      if (asArray) tokens.push(getObj(true));
-    }
-    return asArray ? tokens : getObj();
-  }
-
-  // Run the given mode's parser over a line, calling f for each token.
-  function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
-    var flattenSpans = mode.flattenSpans;
-    if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
-    var curStart = 0, curStyle = null;
-    var stream = new StringStream(text, cm.options.tabSize), style;
-    var inner = cm.options.addModeClass && [null];
-    if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
-    while (!stream.eol()) {
-      if (stream.pos > cm.options.maxHighlightLength) {
-        flattenSpans = false;
-        if (forceToEnd) processLine(cm, text, state, stream.pos);
-        stream.pos = text.length;
-        style = null;
-      } else {
-        style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
-      }
-      if (inner) {
-        var mName = inner[0].name;
-        if (mName) style = "m-" + (style ? mName + " " + style : mName);
-      }
-      if (!flattenSpans || curStyle != style) {
-        while (curStart < stream.start) {
-          curStart = Math.min(stream.start, curStart + 50000);
-          f(curStart, curStyle);
-        }
-        curStyle = style;
-      }
-      stream.start = stream.pos;
-    }
-    while (curStart < stream.pos) {
-      // Webkit seems to refuse to render text nodes longer than 57444 characters
-      var pos = Math.min(stream.pos, curStart + 50000);
-      f(pos, curStyle);
-      curStart = pos;
-    }
-  }
-
-  // Compute a style array (an array starting with a mode generation
-  // -- for invalidation -- followed by pairs of end positions and
-  // style strings), which is used to highlight the tokens on the
-  // line.
-  function highlightLine(cm, line, state, forceToEnd) {
-    // A styles array always starts with a number identifying the
-    // mode/overlays that it is based on (for easy invalidation).
-    var st = [cm.state.modeGen], lineClasses = {};
-    // Compute the base array of styles
-    runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
-      st.push(end, style);
-    }, lineClasses, forceToEnd);
-
-    // Run overlays, adjust style array.
-    for (var o = 0; o < cm.state.overlays.length; ++o) {
-      var overlay = cm.state.overlays[o], i = 1, at = 0;
-      runMode(cm, line.text, overlay.mode, true, function(end, style) {
-        var start = i;
-        // Ensure there's a token end at the current position, and that i points at it
-        while (at < end) {
-          var i_end = st[i];
-          if (i_end > end)
-            st.splice(i, 1, end, st[i+1], i_end);
-          i += 2;
-          at = Math.min(end, i_end);
-        }
-        if (!style) return;
-        if (overlay.opaque) {
-          st.splice(start, i - start, end, "cm-overlay " + style);
-          i = start + 2;
-        } else {
-          for (; start < i; start += 2) {
-            var cur = st[start+1];
-            st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
-          }
-        }
-      }, lineClasses);
-    }
-
-    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
-  }
-
-  function getLineStyles(cm, line, updateFrontier) {
-    if (!line.styles || line.styles[0] != cm.state.modeGen) {
-      var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
-      line.styles = result.styles;
-      if (result.classes) line.styleClasses = result.classes;
-      else if (line.styleClasses) line.styleClasses = null;
-      if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
-    }
-    return line.styles;
-  }
-
-  // Lightweight form of highlight -- proceed over this line and
-  // update state, but don't save a style array. Used for lines that
-  // aren't currently visible.
-  function processLine(cm, text, state, startAt) {
-    var mode = cm.doc.mode;
-    var stream = new StringStream(text, cm.options.tabSize);
-    stream.start = stream.pos = startAt || 0;
-    if (text == "") callBlankLine(mode, state);
-    while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) {
-      readToken(mode, stream, state);
-      stream.start = stream.pos;
-    }
-  }
-
-  // Convert a style as returned by a mode (either null, or a string
-  // containing one or more styles) to a CSS style. This is cached,
-  // and also looks for line-wide styles.
-  var styleToClassCache = {}, styleToClassCacheWithMode = {};
-  function interpretTokenStyle(style, options) {
-    if (!style || /^\s*$/.test(style)) return null;
-    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
-    return cache[style] ||
-      (cache[style] = style.replace(/\S+/g, "cm-$&"));
-  }
-
-  // Render the DOM representation of the text of a line. Also builds
-  // up a 'line map', which points at the DOM nodes that represent
-  // specific stretches of text, and is used by the measuring code.
-  // The returned object contains the DOM node, this map, and
-  // information about line-wide styles that were set by the mode.
-  function buildLineContent(cm, lineView) {
-    // The padding-right forces the element to have a 'border', which
-    // is needed on Webkit to be able to get line-level bounding
-    // rectangles for it (in measureChar).
-    var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
-    var builder = {pre: elt("pre", [content]), content: content,
-                   col: 0, pos: 0, cm: cm,
-                   splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
-    lineView.measure = {};
-
-    // Iterate over the logical lines that make up this visual line.
-    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
-      var line = i ? lineView.rest[i - 1] : lineView.line, order;
-      builder.pos = 0;
-      builder.addToken = buildToken;
-      // Optionally wire in some hacks into the token-rendering
-      // algorithm, to deal with browser quirks.
-      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
-        builder.addToken = buildTokenBadBidi(builder.addToken, order);
-      builder.map = [];
-      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
-      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
-      if (line.styleClasses) {
-        if (line.styleClasses.bgClass)
-          builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
-        if (line.styleClasses.textClass)
-          builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
-      }
-
-      // Ensure at least a single node is present, for measuring.
-      if (builder.map.length == 0)
-        builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
-
-      // Store the map and a cache object for the current logical line
-      if (i == 0) {
-        lineView.measure.map = builder.map;
-        lineView.measure.cache = {};
-      } else {
-        (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
-        (lineView.measure.caches || (lineView.measure.caches = [])).push({});
-      }
-    }
-
-    // See issue #2901
-    if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
-      builder.content.className = "cm-tab-wrap-hack";
-
-    signal(cm, "renderLine", cm, lineView.line, builder.pre);
-    if (builder.pre.className)
-      builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
-
-    return builder;
-  }
-
-  function defaultSpecialCharPlaceholder(ch) {
-    var token = elt("span", "\u2022", "cm-invalidchar");
-    token.title = "\\u" + ch.charCodeAt(0).toString(16);
-    token.setAttribute("aria-label", token.title);
-    return token;
-  }
-
-  // Build up the DOM representation for a single token, and add it to
-  // the line map. Takes care to render special characters separately.
-  function buildToken(builder, text, style, startStyle, endStyle, title, css) {
-    if (!text) return;
-    var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
-    var special = builder.cm.state.specialChars, mustWrap = false;
-    if (!special.test(text)) {
-      builder.col += text.length;
-      var content = document.createTextNode(displayText);
-      builder.map.push(builder.pos, builder.pos + text.length, content);
-      if (ie && ie_version < 9) mustWrap = true;
-      builder.pos += text.length;
-    } else {
-      var content = document.createDocumentFragment(), pos = 0;
-      while (true) {
-        special.lastIndex = pos;
-        var m = special.exec(text);
-        var skipped = m ? m.index - pos : text.length - pos;
-        if (skipped) {
-          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
-          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
-          else content.appendChild(txt);
-          builder.map.push(builder.pos, builder.pos + skipped, txt);
-          builder.col += skipped;
-          builder.pos += skipped;
-        }
-        if (!m) break;
-        pos += skipped + 1;
-        if (m[0] == "\t") {
-          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
-          var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
-          txt.setAttribute("role", "presentation");
-          txt.setAttribute("cm-text", "\t");
-          builder.col += tabWidth;
-        } else {
-          var txt = builder.cm.options.specialCharPlaceholder(m[0]);
-          txt.setAttribute("cm-text", m[0]);
-          if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
-          else content.appendChild(txt);
-          builder.col += 1;
-        }
-        builder.map.push(builder.pos, builder.pos + 1, txt);
-        builder.pos++;
-      }
-    }
-    if (style || startStyle || endStyle || mustWrap || css) {
-      var fullStyle = style || "";
-      if (startStyle) fullStyle += startStyle;
-      if (endStyle) fullStyle += endStyle;
-      var token = elt("span", [content], fullStyle, css);
-      if (title) token.title = title;
-      return builder.content.appendChild(token);
-    }
-    builder.content.appendChild(content);
-  }
-
-  function splitSpaces(old) {
-    var out = " ";
-    for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
-    out += " ";
-    return out;
-  }
-
-  // Work around nonsense dimensions being reported for stretches of
-  // right-to-left text.
-  function buildTokenBadBidi(inner, order) {
-    return function(builder, text, style, startStyle, endStyle, title, css) {
-      style = style ? style + " cm-force-border" : "cm-force-border";
-      var start = builder.pos, end = start + text.length;
-      for (;;) {
-        // Find the part that overlaps with the start of this text
-        for (var i = 0; i < order.length; i++) {
-          var part = order[i];
-          if (part.to > start && part.from <= start) break;
-        }
-        if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
-        inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
-        startStyle = null;
-        text = text.slice(part.to - start);
-        start = part.to;
-      }
-    };
-  }
-
-  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
-    var widget = !ignoreWidget && marker.widgetNode;
-    if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
-    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
-      if (!widget)
-        widget = builder.content.appendChild(document.createElement("span"));
-      widget.setAttribute("cm-marker", marker.id);
-    }
-    if (widget) {
-      builder.cm.display.input.setUneditable(widget);
-      builder.content.appendChild(widget);
-    }
-    builder.pos += size;
-  }
-
-  // Outputs a number of spans to make up a line, taking highlighting
-  // and marked text into account.
-  function insertLineContent(line, builder, styles) {
-    var spans = line.markedSpans, allText = line.text, at = 0;
-    if (!spans) {
-      for (var i = 1; i < styles.length; i+=2)
-        builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
-      return;
-    }
-
-    var len = allText.length, pos = 0, i = 1, text = "", style, css;
-    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
-    for (;;) {
-      if (nextChange == pos) { // Update current marker set
-        spanStyle = spanEndStyle = spanStartStyle = title = css = "";
-        collapsed = null; nextChange = Infinity;
-        var foundBookmarks = [];
-        for (var j = 0; j < spans.length; ++j) {
-          var sp = spans[j], m = sp.marker;
-          if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
-            foundBookmarks.push(m);
-          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
-            if (sp.to != null && sp.to != pos && nextChange > sp.to) {
-              nextChange = sp.to;
-              spanEndStyle = "";
-            }
-            if (m.className) spanStyle += " " + m.className;
-            if (m.css) css = m.css;
-            if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
-            if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
-            if (m.title && !title) title = m.title;
-            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
-              collapsed = sp;
-          } else if (sp.from > pos && nextChange > sp.from) {
-            nextChange = sp.from;
-          }
-        }
-        if (collapsed && (collapsed.from || 0) == pos) {
-          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
-                             collapsed.marker, collapsed.from == null);
-          if (collapsed.to == null) return;
-          if (collapsed.to == pos) collapsed = false;
-        }
-        if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
-          buildCollapsedSpan(builder, 0, foundBookmarks[j]);
-      }
-      if (pos >= len) break;
-
-      var upto = Math.min(len, nextChange);
-      while (true) {
-        if (text) {
-          var end = pos + text.length;
-          if (!collapsed) {
-            var tokenText = end > upto ? text.slice(0, upto - pos) : text;
-            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
-                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
-          }
-          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
-          pos = end;
-          spanStartStyle = "";
-        }
-        text = allText.slice(at, at = styles[i++]);
-        style = interpretTokenStyle(styles[i++], builder.cm.options);
-      }
-    }
-  }
-
-  // DOCUMENT DATA STRUCTURE
-
-  // By default, updates that start and end at the beginning of a line
-  // are treated specially, in order to make the association of line
-  // widgets and marker elements with the text behave more intuitive.
-  function isWholeLineUpdate(doc, change) {
-    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
-      (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
-  }
-
-  // Perform a change on the document data structure.
-  function updateDoc(doc, change, markedSpans, estimateHeight) {
-    function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
-    function update(line, text, spans) {
-      updateLine(line, text, spans, estimateHeight);
-      signalLater(line, "change", line, change);
-    }
-    function linesFor(start, end) {
-      for (var i = start, result = []; i < end; ++i)
-        result.push(new Line(text[i], spansFor(i), estimateHeight));
-      return result;
-    }
-
-    var from = change.from, to = change.to, text = change.text;
-    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
-    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
-
-    // Adjust the line structure
-    if (change.full) {
-      doc.insert(0, linesFor(0, text.length));
-      doc.remove(text.length, doc.size - text.length);
-    } else if (isWholeLineUpdate(doc, change)) {
-      // This is a whole-line replace. Treated specially to make
-      // sure line objects move the way they are supposed to.
-      var added = linesFor(0, text.length - 1);
-      update(lastLine, lastLine.text, lastSpans);
-      if (nlines) doc.remove(from.line, nlines);
-      if (added.length) doc.insert(from.line, added);
-    } else if (firstLine == lastLine) {
-      if (text.length == 1) {
-        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
-      } else {
-        var added = linesFor(1, text.length - 1);
-        added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
-        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
-        doc.insert(from.line + 1, added);
-      }
-    } else if (text.length == 1) {
-      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
-      doc.remove(from.line + 1, nlines);
-    } else {
-      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
-      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
-      var added = linesFor(1, text.length - 1);
-      if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
-      doc.insert(from.line + 1, added);
-    }
-
-    signalLater(doc, "change", doc, change);
-  }
-
-  // The document is represented as a BTree consisting of leaves, with
-  // chunk of lines in them, and branches, with up to ten leaves or
-  // other branch nodes below them. The top node is always a branch
-  // node, and is the document object itself (meaning it has
-  // additional methods and properties).
-  //
-  // All nodes have parent links. The tree is used both to go from
-  // line numbers to line objects, and to go from objects to numbers.
-  // It also indexes by height, and is used to convert between height
-  // and line object, and to find the total height of the document.
-  //
-  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
-
-  function LeafChunk(lines) {
-    this.lines = lines;
-    this.parent = null;
-    for (var i = 0, height = 0; i < lines.length; ++i) {
-      lines[i].parent = this;
-      height += lines[i].height;
-    }
-    this.height = height;
-  }
-
-  LeafChunk.prototype = {
-    chunkSize: function() { return this.lines.length; },
-    // Remove the n lines at offset 'at'.
-    removeInner: function(at, n) {
-      for (var i = at, e = at + n; i < e; ++i) {
-        var line = this.lines[i];
-        this.height -= line.height;
-        cleanUpLine(line);
-        signalLater(line, "delete");
-      }
-      this.lines.splice(at, n);
-    },
-    // Helper used to collapse a small branch into a single leaf.
-    collapse: function(lines) {
-      lines.push.apply(lines, this.lines);
-    },
-    // Insert the given array of lines at offset 'at', count them as
-    // having the given height.
-    insertInner: function(at, lines, height) {
-      this.height += height;
-      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
-      for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
-    },
-    // Used to iterate over a part of the tree.
-    iterN: function(at, n, op) {
-      for (var e = at + n; at < e; ++at)
-        if (op(this.lines[at])) return true;
-    }
-  };
-
-  function BranchChunk(children) {
-    this.children = children;
-    var size = 0, height = 0;
-    for (var i = 0; i < children.length; ++i) {
-      var ch = children[i];
-      size += ch.chunkSize(); height += ch.height;
-      ch.parent = this;
-    }
-    this.size = size;
-    this.height = height;
-    this.parent = null;
-  }
-
-  BranchChunk.prototype = {
-    chunkSize: function() { return this.size; },
-    removeInner: function(at, n) {
-      this.size -= n;
-      for (var i = 0; i < this.children.length; ++i) {
-        var child = this.children[i], sz = child.chunkSize();
-        if (at < sz) {
-          var rm = Math.min(n, sz - at), oldHeight = child.height;
-          child.removeInner(at, rm);
-          this.height -= oldHeight - child.height;
-          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
-          if ((n -= rm) == 0) break;
-          at = 0;
-        } else at -= sz;
-      }
-      // If the result is smaller than 25 lines, ensure that it is a
-      // single leaf node.
-      if (this.size - n < 25 &&
-          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
-        var lines = [];
-        this.collapse(lines);
-        this.children = [new LeafChunk(lines)];
-        this.children[0].parent = this;
-      }
-    },
-    collapse: function(lines) {
-      for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
-    },
-    insertInner: function(at, lines, height) {
-      this.size += lines.length;
-      this.height += height;
-      for (var i = 0; i < this.children.length; ++i) {
-        var child = this.children[i], sz = child.chunkSize();
-        if (at <= sz) {
-          child.insertInner(at, lines, height);
-          if (child.lines && child.lines.length > 50) {
-            while (child.lines.length > 50) {
-              var spilled = child.lines.splice(child.lines.length - 25, 25);
-              var newleaf = new LeafChunk(spilled);
-              child.height -= newleaf.height;
-              this.children.splice(i + 1, 0, newleaf);
-              newleaf.parent = this;
-            }
-            this.maybeSpill();
-          }
-          break;
-        }
-        at -= sz;
-      }
-    },
-    // When a node has grown, check whether it should be split.
-    maybeSpill: function() {
-      if (this.children.length <= 10) return;
-      var me = this;
-      do {
-        var spilled = me.children.splice(me.children.length - 5, 5);
-        var sibling = new BranchChunk(spilled);
-        if (!me.parent) { // Become the parent node
-          var copy = new BranchChunk(me.children);
-          copy.parent = me;
-          me.children = [copy, sibling];
-          me = copy;
-        } else {
-          me.size -= sibling.size;
-          me.height -= sibling.height;
-          var myIndex = indexOf(me.parent.children, me);
-          me.parent.children.splice(myIndex + 1, 0, sibling);
-        }
-        sibling.parent = me.parent;
-      } while (me.children.length > 10);
-      me.parent.maybeSpill();
-    },
-    iterN: function(at, n, op) {
-      for (var i = 0; i < this.children.length; ++i) {
-        var child = this.children[i], sz = child.chunkSize();
-        if (at < sz) {
-          var used = Math.min(n, sz - at);
-          if (child.iterN(at, used, op)) return true;
-          if ((n -= used) == 0) break;
-          at = 0;
-        } else at -= sz;
-      }
-    }
-  };
-
-  var nextDocId = 0;
-  var Doc = CodeMirror.Doc = function(text, mode, firstLine) {
-    if (!(this instanceof Doc)) return new Doc(text, mode, firstLine);
-    if (firstLine == null) firstLine = 0;
-
-    BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
-    this.first = firstLine;
-    this.scrollTop = this.scrollLeft = 0;
-    this.cantEdit = false;
-    this.cleanGeneration = 1;
-    this.frontier = firstLine;
-    var start = Pos(firstLine, 0);
-    this.sel = simpleSelection(start);
-    this.history = new History(null);
-    this.id = ++nextDocId;
-    this.modeOption = mode;
-
-    if (typeof text == "string") text = splitLines(text);
-    updateDoc(this, {from: start, to: start, text: text});
-    setSelection(this, simpleSelection(start), sel_dontScroll);
-  };
-
-  Doc.prototype = createObj(BranchChunk.prototype, {
-    constructor: Doc,
-    // Iterate over the document. Supports two forms -- with only one
-    // argument, it calls that for each line in the document. With
-    // three, it iterates over the range given by the first two (with
-    // the second being non-inclusive).
-    iter: function(from, to, op) {
-      if (op) this.iterN(from - this.first, to - from, op);
-      else this.iterN(this.first, this.first + this.size, from);
-    },
-
-    // Non-public interface for adding and removing lines.
-    insert: function(at, lines) {
-      var height = 0;
-      for (var i = 0; i < lines.length; ++i) height += lines[i].height;
-      this.insertInner(at - this.first, lines, height);
-    },
-    remove: function(at, n) { this.removeInner(at - this.first, n); },
-
-    // From here, the methods are part of the public interface. Most
-    // are also available from CodeMirror (editor) instances.
-
-    getValue: function(lineSep) {
-      var lines = getLines(this, this.first, this.first + this.size);
-      if (lineSep === false) return lines;
-      return lines.join(lineSep || "\n");
-    },
-    setValue: docMethodOp(function(code) {
-      var top = Pos(this.first, 0), last = this.first + this.size - 1;
-      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
-                        text: splitLines(code), origin: "setValue", full: true}, true);
-      setSelection(this, simpleSelection(top));
-    }),
-    replaceRange: function(code, from, to, origin) {
-      from = clipPos(this, from);
-      to = to ? clipPos(this, to) : from;
-      replaceRange(this, code, from, to, origin);
-    },
-    getRange: function(from, to, lineSep) {
-      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
-      if (lineSep === false) return lines;
-      return lines.join(lineSep || "\n");
-    },
-
-    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
-
-    getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
-    getLineNumber: function(line) {return lineNo(line);},
-
-    getLineHandleVisualStart: function(line) {
-      if (typeof line == "number") line = getLine(this, line);
-      return visualLine(line);
-    },
-
-    lineCount: function() {return this.size;},
-    firstLine: function() {return this.first;},
-    lastLine: function() {return this.first + this.size - 1;},
-
-    clipPos: function(pos) {return clipPos(this, pos);},
-
-    getCursor: function(start) {
-      var range = this.sel.primary(), pos;
-      if (start == null || start == "head") pos = range.head;
-      else if (start == "anchor") pos = range.anchor;
-      else if (start == "end" || start == "to" || start === false) pos = range.to();
-      else pos = range.from();
-      return pos;
-    },
-    listSelections: function() { return this.sel.ranges; },
-    somethingSelected: function() {return this.sel.somethingSelected();},
-
-    setCursor: docMethodOp(function(line, ch, options) {
-      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
-    }),
-    setSelection: docMethodOp(function(anchor, head, options) {
-      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
-    }),
-    extendSelection: docMethodOp(function(head, other, options) {
-      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
-    }),
-    extendSelections: docMethodOp(function(heads, options) {
-      extendSelections(this, clipPosArray(this, heads, options));
-    }),
-    extendSelectionsBy: docMethodOp(function(f, options) {
-      extendSelections(this, map(this.sel.ranges, f), options);
-    }),
-    setSelections: docMethodOp(function(ranges, primary, options) {
-      if (!ranges.length) return;
-      for (var i = 0, out = []; i < ranges.length; i++)
-        out[i] = new Range(clipPos(this, ranges[i].anchor),
-                           clipPos(this, ranges[i].head));
-      if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
-      setSelection(this, normalizeSelection(out, primary), options);
-    }),
-    addSelection: docMethodOp(function(anchor, head, options) {
-      var ranges = this.sel.ranges.slice(0);
-      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
-      setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
-    }),
-
-    getSelection: function(lineSep) {
-      var ranges = this.sel.ranges, lines;
-      for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
-        lines = lines ? lines.concat(sel) : sel;
-      }
-      if (lineSep === false) return lines;
-      else return lines.join(lineSep || "\n");
-    },
-    getSelections: function(lineSep) {
-      var parts = [], ranges = this.sel.ranges;
-      for (var i = 0; i < ranges.length; i++) {
-        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
-        if (lineSep !== false) sel = sel.join(lineSep || "\n");
-        parts[i] = sel;
-      }
-      return parts;
-    },
-    replaceSelection: function(code, collapse, origin) {
-      var dup = [];
-      for (var i = 0; i < this.sel.ranges.length; i++)
-        dup[i] = code;
-      this.replaceSelections(dup, collapse, origin || "+input");
-    },
-    replaceSelections: docMethodOp(function(code, collapse, origin) {
-      var changes = [], sel = this.sel;
-      for (var i = 0; i < sel.ranges.length; i++) {
-        var range = sel.ranges[i];
-        changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin};
-      }
-      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
-      for (var i = changes.length - 1; i >= 0; i--)
-        makeChange(this, changes[i]);
-      if (newSel) setSelectionReplaceHistory(this, newSel);
-      else if (this.cm) ensureCursorVisible(this.cm);
-    }),
-    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
-    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
-    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
-    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
-
-    setExtending: function(val) {this.extend = val;},
-    getExtending: function() {return this.extend;},
-
-    historySize: function() {
-      var hist = this.history, done = 0, undone = 0;
-      for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
-      for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
-      return {undo: done, redo: undone};
-    },
-    clearHistory: function() {this.history = new History(this.history.maxGeneration);},
-
-    markClean: function() {
-      this.cleanGeneration = this.changeGeneration(true);
-    },
-    changeGeneration: function(forceSplit) {
-      if (forceSplit)
-        this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
-      return this.history.generation;
-    },
-    isClean: function (gen) {
-      return this.history.generation == (gen || this.cleanGeneration);
-    },
-
-    getHistory: function() {
-      return {done: copyHistoryArray(this.history.done),
-              undone: copyHistoryArray(this.history.undone)};
-    },
-    setHistory: function(histData) {
-      var hist = this.history = new History(this.history.maxGeneration);
-      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
-      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
-    },
-
-    addLineClass: docMethodOp(function(handle, where, cls) {
-      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
-        var prop = where == "text" ? "textClass"
-                 : where == "background" ? "bgClass"
-                 : where == "gutter" ? "gutterClass" : "wrapClass";
-        if (!line[prop]) line[prop] = cls;
-        else if (classTest(cls).test(line[prop])) return false;
-        else line[prop] += " " + cls;
-        return true;
-      });
-    }),
-    removeLineClass: docMethodOp(function(handle, where, cls) {
-      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
-        var prop = where == "text" ? "textClass"
-                 : where == "background" ? "bgClass"
-                 : where == "gutter" ? "gutterClass" : "wrapClass";
-        var cur = line[prop];
-        if (!cur) return false;
-        else if (cls == null) line[prop] = null;
-        else {
-          var found = cur.match(classTest(cls));
-          if (!found) return false;
-          var end = found.index + found[0].length;
-          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
-        }
-        return true;
-      });
-    }),
-
-    addLineWidget: docMethodOp(function(handle, node, options) {
-      return addLineWidget(this, handle, node, options);
-    }),
-    removeLineWidget: function(widget) { widget.clear(); },
-
-    markText: function(from, to, options) {
-      return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
-    },
-    setBookmark: function(pos, options) {
-      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
-                      insertLeft: options && options.insertLeft,
-                      clearWhenEmpty: false, shared: options && options.shared,
-                      handleMouseEvents: options && options.handleMouseEvents};
-      pos = clipPos(this, pos);
-      return markText(this, pos, pos, realOpts, "bookmark");
-    },
-    findMarksAt: function(pos) {
-      pos = clipPos(this, pos);
-      var markers = [], spans = getLine(this, pos.line).markedSpans;
-      if (spans) for (var i = 0; i < spans.length; ++i) {
-        var span = spans[i];
-        if ((span.from == null || span.from <= pos.ch) &&
-            (span.to == null || span.to >= pos.ch))
-          markers.push(span.marker.parent || span.marker);
-      }
-      return markers;
-    },
-    findMarks: function(from, to, filter) {
-      from = clipPos(this, from); to = clipPos(this, to);
-      var found = [], lineNo = from.line;
-      this.iter(from.line, to.line + 1, function(line) {
-        var spans = line.markedSpans;
-        if (spans) for (var i = 0; i < spans.length; i++) {
-          var span = spans[i];
-          if (!(lineNo == from.line && from.ch > span.to ||
-                span.from == null && lineNo != from.line||
-                lineNo == to.line && span.from > to.ch) &&
-              (!filter || filter(span.marker)))
-            found.push(span.marker.parent || span.marker);
-        }
-        ++lineNo;
-      });
-      return found;
-    },
-    getAllMarks: function() {
-      var markers = [];
-      this.iter(function(line) {
-        var sps = line.markedSpans;
-        if (sps) for (var i = 0; i < sps.length; ++i)
-          if (sps[i].from != null) markers.push(sps[i].marker);
-      });
-      return markers;
-    },
-
-    posFromIndex: function(off) {
-      var ch, lineNo = this.first;
-      this.iter(function(line) {
-        var sz = line.text.length + 1;
-        if (sz > off) { ch = off; return true; }
-        off -= sz;
-        ++lineNo;
-      });
-      return clipPos(this, Pos(lineNo, ch));
-    },
-    indexFromPos: function (coords) {
-      coords = clipPos(this, coords);
-      var index = coords.ch;
-      if (coords.line < this.first || coords.ch < 0) return 0;
-      this.iter(this.first, coords.line, function (line) {
-        index += line.text.length + 1;
-      });
-      return index;
-    },
-
-    copy: function(copyHistory) {
-      var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first);
-      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
-      doc.sel = this.sel;
-      doc.extend = false;
-      if (copyHistory) {
-        doc.history.undoDepth = this.history.undoDepth;
-        doc.setHistory(this.getHistory());
-      }
-      return doc;
-    },
-
-    linkedDoc: function(options) {
-      if (!options) options = {};
-      var from = this.first, to = this.first + this.size;
-      if (options.from != null && options.from > from) from = options.from;
-      if (options.to != null && options.to < to) to = options.to;
-      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from);
-      if (options.sharedHist) copy.history = this.history;
-      (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
-      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
-      copySharedMarkers(copy, findSharedMarkers(this));
-      return copy;
-    },
-    unlinkDoc: function(other) {
-      if (other instanceof CodeMirror) other = other.doc;
-      if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
-        var link = this.linked[i];
-        if (link.doc != other) continue;
-        this.linked.splice(i, 1);
-        other.unlinkDoc(this);
-        detachSharedMarkers(findSharedMarkers(this));
-        break;
-      }
-      // If the histories were shared, split them again
-      if (other.history == this.history) {
-        var splitIds = [other.id];
-        linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
-        other.history = new History(null);
-        other.history.done = copyHistoryArray(this.history.done, splitIds);
-        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
-      }
-    },
-    iterLinkedDocs: function(f) {linkedDocs(this, f);},
-
-    getMode: function() {return this.mode;},
-    getEditor: function() {return this.cm;}
-  });
-
-  // Public alias.
-  Doc.prototype.eachLine = Doc.prototype.iter;
-
-  // Set up methods on CodeMirror's prototype to redirect to the editor's document.
-  var dontDelegate = "iter insert remove copy getEditor".split(" ");
-  for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
-    CodeMirror.prototype[prop] = (function(method) {
-      return function() {return method.apply(this.doc, arguments);};
-    })(Doc.prototype[prop]);
-
-  eventMixin(Doc);
-
-  // Call f for all linked documents.
-  function linkedDocs(doc, f, sharedHistOnly) {
-    function propagate(doc, skip, sharedHist) {
-      if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
-        var rel = doc.linked[i];
-        if (rel.doc == skip) continue;
-        var shared = sharedHist && rel.sharedHist;
-        if (sharedHistOnly && !shared) continue;
-        f(rel.doc, shared);
-        propagate(rel.doc, doc, shared);
-      }
-    }
-    propagate(doc, null, true);
-  }
-
-  // Attach a document to an editor.
-  function attachDoc(cm, doc) {
-    if (doc.cm) throw new Error("This document is already in use.");
-    cm.doc = doc;
-    doc.cm = cm;
-    estimateLineHeights(cm);
-    loadMode(cm);
-    if (!cm.options.lineWrapping) findMaxLine(cm);
-    cm.options.mode = doc.modeOption;
-    regChange(cm);
-  }
-
-  // LINE UTILITIES
-
-  // Find the line object corresponding to the given line number.
-  function getLine(doc, n) {
-    n -= doc.first;
-    if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
-    for (var chunk = doc; !chunk.lines;) {
-      for (var i = 0;; ++i) {
-        var child = chunk.children[i], sz = child.chunkSize();
-        if (n < sz) { chunk = child; break; }
-        n -= sz;
-      }
-    }
-    return chunk.lines[n];
-  }
-
-  // Get the part of a document between two positions, as an array of
-  // strings.
-  function getBetween(doc, start, end) {
-    var out = [], n = start.line;
-    doc.iter(start.line, end.line + 1, function(line) {
-      var text = line.text;
-      if (n == end.line) text = text.slice(0, end.ch);
-      if (n == start.line) text = text.slice(start.ch);
-      out.push(text);
-      ++n;
-    });
-    return out;
-  }
-  // Get the lines between from and to, as array of strings.
-  function getLines(doc, from, to) {
-    var out = [];
-    doc.iter(from, to, function(line) { out.push(line.text); });
-    return out;
-  }
-
-  // Update the height of a line, propagating the height change
-  // upwards to parent nodes.
-  function updateLineHeight(line, height) {
-    var diff = height - line.height;
-    if (diff) for (var n = line; n; n = n.parent) n.height += diff;
-  }
-
-  // Given a line object, find its line number by walking up through
-  // its parent links.
-  function lineNo(line) {
-    if (line.parent == null) return null;
-    var cur = line.parent, no = indexOf(cur.lines, line);
-    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
-      for (var i = 0;; ++i) {
-        if (chunk.children[i] == cur) break;
-        no += chunk.children[i].chunkSize();
-      }
-    }
-    return no + cur.first;
-  }
-
-  // Find the line at the given vertical position, using the height
-  // information in the document tree.
-  function lineAtHeight(chunk, h) {
-    var n = chunk.first;
-    outer: do {
-      for (var i = 0; i < chunk.children.length; ++i) {
-        var child = chunk.children[i], ch = child.height;
-        if (h < ch) { chunk = child; continue outer; }
-        h -= ch;
-        n += child.chunkSize();
-      }
-      return n;
-    } while (!chunk.lines);
-    for (var i = 0; i < chunk.lines.length; ++i) {
-      var line = chunk.lines[i], lh = line.height;
-      if (h < lh) break;
-      h -= lh;
-    }
-    return n + i;
-  }
-
-
-  // Find the height above the given line.
-  function heightAtLine(lineObj) {
-    lineObj = visualLine(lineObj);
-
-    var h = 0, chunk = lineObj.parent;
-    for (var i = 0; i < chunk.lines.length; ++i) {
-      var line = chunk.lines[i];
-      if (line == lineObj) break;
-      else h += line.height;
-    }
-    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
-      for (var i = 0; i < p.children.length; ++i) {
-        var cur = p.children[i];
-        if (cur == chunk) break;
-        else h += cur.height;
-      }
-    }
-    return h;
-  }
-
-  // Get the bidi ordering for the given line (and cache it). Returns
-  // false for lines that are fully left-to-right, and an array of
-  // BidiSpan objects otherwise.
-  function getOrder(line) {
-    var order = line.order;
-    if (order == null) order = line.order = bidiOrdering(line.text);
-    return order;
-  }
-
-  // HISTORY
-
-  function History(startGen) {
-    // Arrays of change events and selections. Doing something adds an
-    // event to done and clears undo. Undoing moves events from done
-    // to undone, redoing moves them in the other direction.
-    this.done = []; this.undone = [];
-    this.undoDepth = Infinity;
-    // Used to track when changes can be merged into a single undo
-    // event
-    this.lastModTime = this.lastSelTime = 0;
-    this.lastOp = this.lastSelOp = null;
-    this.lastOrigin = this.lastSelOrigin = null;
-    // Used by the isClean() method
-    this.generation = this.maxGeneration = startGen || 1;
-  }
-
-  // Create a history change event from an updateDoc-style change
-  // object.
-  function historyChangeFromChange(doc, change) {
-    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
-    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
-    linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
-    return histChange;
-  }
-
-  // Pop all selection events off the end of a history array. Stop at
-  // a change event.
-  function clearSelectionEvents(array) {
-    while (array.length) {
-      var last = lst(array);
-      if (last.ranges) array.pop();
-      else break;
-    }
-  }
-
-  // Find the top change event in the history. Pop off selection
-  // events that are in the way.
-  function lastChangeEvent(hist, force) {
-    if (force) {
-      clearSelectionEvents(hist.done);
-      return lst(hist.done);
-    } else if (hist.done.length && !lst(hist.done).ranges) {
-      return lst(hist.done);
-    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
-      hist.done.pop();
-      return lst(hist.done);
-    }
-  }
-
-  // Register a change in the history. Merges changes that are within
-  // a single operation, ore are close together with an origin that
-  // allows merging (starting with "+") into a single event.
-  function addChangeToHistory(doc, change, selAfter, opId) {
-    var hist = doc.history;
-    hist.undone.length = 0;
-    var time = +new Date, cur;
-
-    if ((hist.lastOp == opId ||
-         hist.lastOrigin == change.origin && change.origin &&
-         ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
-          change.origin.charAt(0) == "*")) &&
-        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
-      // Merge this change into the last event
-      var last = lst(cur.changes);
-      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
-        // Optimized case for simple insertion -- don't want to add
-        // new changesets for every character typed
-        last.to = changeEnd(change);
-      } else {
-        // Add new sub-event
-        cur.changes.push(historyChangeFromChange(doc, change));
-      }
-    } else {
-      // Can not be merged, start a new event.
-      var before = lst(hist.done);
-      if (!before || !before.ranges)
-        pushSelectionToHistory(doc.sel, hist.done);
-      cur = {changes: [historyChangeFromChange(doc, change)],
-             generation: hist.generation};
-      hist.done.push(cur);
-      while (hist.done.length > hist.undoDepth) {
-        hist.done.shift();
-        if (!hist.done[0].ranges) hist.done.shift();
-      }
-    }
-    hist.done.push(selAfter);
-    hist.generation = ++hist.maxGeneration;
-    hist.lastModTime = hist.lastSelTime = time;
-    hist.lastOp = hist.lastSelOp = opId;
-    hist.lastOrigin = hist.lastSelOrigin = change.origin;
-
-    if (!last) signal(doc, "historyAdded");
-  }
-
-  function selectionEventCanBeMerged(doc, origin, prev, sel) {
-    var ch = origin.charAt(0);
-    return ch == "*" ||
-      ch == "+" &&
-      prev.ranges.length == sel.ranges.length &&
-      prev.somethingSelected() == sel.somethingSelected() &&
-      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
-  }
-
-  // Called whenever the selection changes, sets the new selection as
-  // the pending selection in the history, and pushes the old pending
-  // selection into the 'done' array when it was significantly
-  // different (in number of selected ranges, emptiness, or time).
-  function addSelectionToHistory(doc, sel, opId, options) {
-    var hist = doc.history, origin = options && options.origin;
-
-    // A new event is started when the previous origin does not match
-    // the current, or the origins don't allow matching. Origins
-    // starting with * are always merged, those starting with + are
-    // merged when similar and close together in time.
-    if (opId == hist.lastSelOp ||
-        (origin && hist.lastSelOrigin == origin &&
-         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
-          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
-      hist.done[hist.done.length - 1] = sel;
-    else
-      pushSelectionToHistory(sel, hist.done);
-
-    hist.lastSelTime = +new Date;
-    hist.lastSelOrigin = origin;
-    hist.lastSelOp = opId;
-    if (options && options.clearRedo !== false)
-      clearSelectionEvents(hist.undone);
-  }
-
-  function pushSelectionToHistory(sel, dest) {
-    var top = lst(dest);
-    if (!(top && top.ranges && top.equals(sel)))
-      dest.push(sel);
-  }
-
-  // Used to store marked span information in the history.
-  function attachLocalSpans(doc, change, from, to) {
-    var existing = change["spans_" + doc.id], n = 0;
-    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
-      if (line.markedSpans)
-        (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
-      ++n;
-    });
-  }
-
-  // When un/re-doing restores text containing marked spans, those
-  // that have been explicitly cleared should not be restored.
-  function removeClearedSpans(spans) {
-    if (!spans) return null;
-    for (var i = 0, out; i < spans.length; ++i) {
-      if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
-      else if (out) out.push(spans[i]);
-    }
-    return !out ? spans : out.length ? out : null;
-  }
-
-  // Retrieve and filter the old marked spans stored in a change event.
-  function getOldSpans(doc, change) {
-    var found = change["spans_" + doc.id];
-    if (!found) return null;
-    for (var i = 0, nw = []; i < change.text.length; ++i)
-      nw.push(removeClearedSpans(found[i]));
-    return nw;
-  }
-
-  // Used both to provide a JSON-safe object in .getHistory, and, when
-  // detaching a document, to split the history in two
-  function copyHistoryArray(events, newGroup, instantiateSel) {
-    for (var i = 0, copy = []; i < events.length; ++i) {
-      var event = events[i];
-      if (event.ranges) {
-        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
-        continue;
-      }
-      var changes = event.changes, newChanges = [];
-      copy.push({changes: newChanges});
-      for (var j = 0; j < changes.length; ++j) {
-        var change = changes[j], m;
-        newChanges.push({from: change.from, to: change.to, text: change.text});
-        if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
-          if (indexOf(newGroup, Number(m[1])) > -1) {
-            lst(newChanges)[prop] = change[prop];
-            delete change[prop];
-          }
-        }
-      }
-    }
-    return copy;
-  }
-
-  // Rebasing/resetting history to deal with externally-sourced changes
-
-  function rebaseHistSelSingle(pos, from, to, diff) {
-    if (to < pos.line) {
-      pos.line += diff;
-    } else if (from < pos.line) {
-      pos.line = from;
-      pos.ch = 0;
-    }
-  }
-
-  // Tries to rebase an array of history events given a change in the
-  // document. If the change touches the same lines as the event, the
-  // event, and everything 'behind' it, is discarded. If the change is
-  // before the event, the event's positions are updated. Uses a
-  // copy-on-write scheme for the positions, to avoid having to
-  // reallocate them all on every rebase, but also avoid problems with
-  // shared position objects being unsafely updated.
-  function rebaseHistArray(array, from, to, diff) {
-    for (var i = 0; i < array.length; ++i) {
-      var sub = array[i], ok = true;
-      if (sub.ranges) {
-        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
-        for (var j = 0; j < sub.ranges.length; j++) {
-          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
-          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
-        }
-        continue;
-      }
-      for (var j = 0; j < sub.changes.length; ++j) {
-        var cur = sub.changes[j];
-        if (to < cur.from.line) {
-          cur.from = Pos(cur.from.line + diff, cur.from.ch);
-          cur.to = Pos(cur.to.line + diff, cur.to.ch);
-        } else if (from <= cur.to.line) {
-          ok = false;
-          break;
-        }
-      }
-      if (!ok) {
-        array.splice(0, i + 1);
-        i = 0;
-      }
-    }
-  }
-
-  function rebaseHist(hist, change) {
-    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
-    rebaseHistArray(hist.done, from, to, diff);
-    rebaseHistArray(hist.undone, from, to, diff);
-  }
-
-  // EVENT UTILITIES
-
-  // Due to the fact that we still support jurassic IE versions, some
-  // compatibility wrappers are needed.
-
-  var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
-    if (e.preventDefault) e.preventDefault();
-    else e.returnValue = false;
-  };
-  var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
-    if (e.stopPropagation) e.stopPropagation();
-    else e.cancelBubble = true;
-  };
-  function e_defaultPrevented(e) {
-    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
-  }
-  var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
-
-  function e_target(e) {return e.target || e.srcElement;}
-  function e_button(e) {
-    var b = e.which;
-    if (b == null) {
-      if (e.button & 1) b = 1;
-      else if (e.button & 2) b = 3;
-      else if (e.button & 4) b = 2;
-    }
-    if (mac && e.ctrlKey && b == 1) b = 3;
-    return b;
-  }
-
-  // EVENT HANDLING
-
-  // Lightweight event framework. on/off also work on DOM nodes,
-  // registering native DOM handlers.
-
-  var on = CodeMirror.on = function(emitter, type, f) {
-    if (emitter.addEventListener)
-      emitter.addEventListener(type, f, false);
-    else if (emitter.attachEvent)
-      emitter.attachEvent("on" + type, f);
-    else {
-      var map = emitter._handlers || (emitter._handlers = {});
-      var arr = map[type] || (map[type] = []);
-      arr.push(f);
-    }
-  };
-
-  var off = CodeMirror.off = function(emitter, type, f) {
-    if (emitter.removeEventListener)
-      emitter.removeEventListener(type, f, false);
-    else if (emitter.detachEvent)
-      emitter.detachEvent("on" + type, f);
-    else {
-      var arr = emitter._handlers && emitter._handlers[type];
-      if (!arr) return;
-      for (var i = 0; i < arr.length; ++i)
-        if (arr[i] == f) { arr.splice(i, 1); break; }
-    }
-  };
-
-  var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
-    var arr = emitter._handlers && emitter._handlers[type];
-    if (!arr) return;
-    var args = Array.prototype.slice.call(arguments, 2);
-    for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
-  };
-
-  var orphanDelayedCallbacks = null;
-
-  // Often, we want to signal events at a point where we are in the
-  // middle of some work, but don't want the handler to start calling
-  // other methods on the editor, which might be in an inconsistent
-  // state or simply not expect any other events to happen.
-  // signalLater looks whether there are any handlers, and schedules
-  // them to be executed when the last operation ends, or, if no
-  // operation is active, when a timeout fires.
-  function signalLater(emitter, type /*, values...*/) {
-    var arr = emitter._handlers && emitter._handlers[type];
-    if (!arr) return;
-    var args = Array.prototype.slice.call(arguments, 2), list;
-    if (operationGroup) {
-      list = operationGroup.delayedCallbacks;
-    } else if (orphanDelayedCallbacks) {
-      list = orphanDelayedCallbacks;
-    } else {
-      list = orphanDelayedCallbacks = [];
-      setTimeout(fireOrphanDelayed, 0);
-    }
-    function bnd(f) {return function(){f.apply(null, args);};};
-    for (var i = 0; i < arr.length; ++i)
-      list.push(bnd(arr[i]));
-  }
-
-  function fireOrphanDelayed() {
-    var delayed = orphanDelayedCallbacks;
-    orphanDelayedCallbacks = null;
-    for (var i = 0; i < delayed.length; ++i) delayed[i]();
-  }
-
-  // The DOM events that CodeMirror handles can be overridden by
-  // registering a (non-DOM) handler on the editor for the event name,
-  // and preventDefault-ing the event in that handler.
-  function signalDOMEvent(cm, e, override) {
-    if (typeof e == "string")
-      e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
-    signal(cm, override || e.type, cm, e);
-    return e_defaultPrevented(e) || e.codemirrorIgnore;
-  }
-
-  function signalCursorActivity(cm) {
-    var arr = cm._handlers && cm._handlers.cursorActivity;
-    if (!arr) return;
-    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
-    for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
-      set.push(arr[i]);
-  }
-
-  function hasHandler(emitter, type) {
-    var arr = emitter._handlers && emitter._handlers[type];
-    return arr && arr.length > 0;
-  }
-
-  // Add on and off methods to a constructor's prototype, to make
-  // registering events on such objects more convenient.
-  function eventMixin(ctor) {
-    ctor.prototype.on = function(type, f) {on(this, type, f);};
-    ctor.prototype.off = function(type, f) {off(this, type, f);};
-  }
-
-  // MISC UTILITIES
-
-  // Number of pixels added to scroller and sizer to hide scrollbar
-  var scrollerGap = 30;
-
-  // Returned or thrown by various protocols to signal 'I'm not
-  // handling this'.
-  var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
-
-  // Reused option objects for setSelection & friends
-  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
-
-  function Delayed() {this.id = null;}
-  Delayed.prototype.set = function(ms, f) {
-    clearTimeout(this.id);
-    this.id = setTimeout(f, ms);
-  };
-
-  // Counts the column offset in a string, taking tabs into account.
-  // Used mostly to find indentation.
-  var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
-    if (end == null) {
-      end = string.search(/[^\s\u00a0]/);
-      if (end == -1) end = string.length;
-    }
-    for (var i = startIndex || 0, n = startValue || 0;;) {
-      var nextTab = string.indexOf("\t", i);
-      if (nextTab < 0 || nextTab >= end)
-        return n + (end - i);
-      n += nextTab - i;
-      n += tabSize - (n % tabSize);
-      i = nextTab + 1;
-    }
-  };
-
-  // The inverse of countColumn -- find the offset that corresponds to
-  // a particular column.
-  function findColumn(string, goal, tabSize) {
-    for (var pos = 0, col = 0;;) {
-      var nextTab = string.indexOf("\t", pos);
-      if (nextTab == -1) nextTab = string.length;
-      var skipped = nextTab - pos;
-      if (nextTab == string.length || col + skipped >= goal)
-        return pos + Math.min(skipped, goal - col);
-      col += nextTab - pos;
-      col += tabSize - (col % tabSize);
-      pos = nextTab + 1;
-      if (col >= goal) return pos;
-    }
-  }
-
-  var spaceStrs = [""];
-  function spaceStr(n) {
-    while (spaceStrs.length <= n)
-      spaceStrs.push(lst(spaceStrs) + " ");
-    return spaceStrs[n];
-  }
-
-  function lst(arr) { return arr[arr.length-1]; }
-
-  var selectInput = function(node) { node.select(); };
-  if (ios) // Mobile Safari apparently has a bug where select() is broken.
-    selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
-  else if (ie) // Suppress mysterious IE10 errors
-    selectInput = function(node) { try { node.select(); } catch(_e) {} };
-
-  function indexOf(array, elt) {
-    for (var i = 0; i < array.length; ++i)
-      if (array[i] == elt) return i;
-    return -1;
-  }
-  function map(array, f) {
-    var out = [];
-    for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
-    return out;
-  }
-
-  function nothing() {}
-
-  function createObj(base, props) {
-    var inst;
-    if (Object.create) {
-      inst = Object.create(base);
-    } else {
-      nothing.prototype = base;
-      inst = new nothing();
-    }
-    if (props) copyObj(props, inst);
-    return inst;
-  };
-
-  function copyObj(obj, target, overwrite) {
-    if (!target) target = {};
-    for (var prop in obj)
-      if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
-        target[prop] = obj[prop];
-    return target;
-  }
-
-  function bind(f) {
-    var args = Array.prototype.slice.call(arguments, 1);
-    return function(){return f.apply(null, args);};
-  }
-
-  var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
-  var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
-    return /\w/.test(ch) || ch > "\x80" &&
-      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
-  };
-  function isWordChar(ch, helper) {
-    if (!helper) return isWordCharBasic(ch);
-    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
-    return helper.test(ch);
-  }
-
-  function isEmpty(obj) {
-    for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
-    return true;
-  }
-
-  // Extending unicode characters. A series of a non-extending char +
-  // any number of extending chars is treated as a single unit as far
-  // as editing and measuring is concerned. This is not fully correct,
-  // since some scripts/fonts/browsers also treat other configurations
-  // of code points as a group.
-  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
-  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
-
-  // DOM UTILITIES
-
-  function elt(tag, content, className, style) {
-    var e = document.createElement(tag);
-    if (className) e.className = className;
-    if (style) e.style.cssText = style;
-    if (typeof content == "string") e.appendChild(document.createTextNode(content));
-    else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
-    return e;
-  }
-
-  var range;
-  if (document.createRange) range = function(node, start, end, endNode) {
-    var r = document.createRange();
-    r.setEnd(endNode || node, end);
-    r.setStart(node, start);
-    return r;
-  };
-  else range = function(node, start, end) {
-    var r = document.body.createTextRange();
-    try { r.moveToElementText(node.parentNode); }
-    catch(e) { return r; }
-    r.collapse(true);
-    r.moveEnd("character", end);
-    r.moveStart("character", start);
-    return r;
-  };
-
-  function removeChildren(e) {
-    for (var count = e.childNodes.length; count > 0; --count)
-      e.removeChild(e.firstChild);
-    return e;
-  }
-
-  function removeChildrenAndAdd(parent, e) {
-    return removeChildren(parent).appendChild(e);
-  }
-
-  var contains = CodeMirror.contains = function(parent, child) {
-    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
-      child = child.parentNode;
-    if (parent.contains)
-      return parent.contains(child);
-    do {
-      if (child.nodeType == 11) child = child.host;
-      if (child == parent) return true;
-    } while (child = child.parentNode);
-  };
-
-  function activeElt() { return document.activeElement; }
-  // Older versions of IE throws unspecified error when touching
-  // document.activeElement in some cases (during loading, in iframe)
-  if (ie && ie_version < 11) activeElt = function() {
-    try { return document.activeElement; }
-    catch(e) { return document.body; }
-  };
-
-  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
-  var rmClass = CodeMirror.rmClass = function(node, cls) {
-    var current = node.className;
-    var match = classTest(cls).exec(current);
-    if (match) {
-      var after = current.slice(match.index + match[0].length);
-      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
-    }
-  };
-  var addClass = CodeMirror.addClass = function(node, cls) {
-    var current = node.className;
-    if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
-  };
-  function joinClasses(a, b) {
-    var as = a.split(" ");
-    for (var i = 0; i < as.length; i++)
-      if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
-    return b;
-  }
-
-  // WINDOW-WIDE EVENTS
-
-  // These must be handled carefully, because naively registering a
-  // handler for each editor will cause the editors to never be
-  // garbage collected.
-
-  function forEachCodeMirror(f) {
-    if (!document.body.getElementsByClassName) return;
-    var byClass = document.body.getElementsByClassName("CodeMirror");
-    for (var i = 0; i < byClass.length; i++) {
-      var cm = byClass[i].CodeMirror;
-      if (cm) f(cm);
-    }
-  }
-
-  var globalsRegistered = false;
-  function ensureGlobalHandlers() {
-    if (globalsRegistered) return;
-    registerGlobalHandlers();
-    globalsRegistered = true;
-  }
-  function registerGlobalHandlers() {
-    // When the window resizes, we need to refresh active editors.
-    var resizeTimer;
-    on(window, "resize", function() {
-      if (resizeTimer == null) resizeTimer = setTimeout(function() {
-        resizeTimer = null;
-        forEachCodeMirror(onResize);
-      }, 100);
-    });
-    // When the window loses focus, we want to show the editor as blurred
-    on(window, "blur", function() {
-      forEachCodeMirror(onBlur);
-    });
-  }
-
-  // FEATURE DETECTION
-
-  // Detect drag-and-drop
-  var dragAndDrop = function() {
-    // There is *some* kind of drag-and-drop support in IE6-8, but I
-    // couldn't get it to work yet.
-    if (ie && ie_version < 9) return false;
-    var div = elt('div');
-    return "draggable" in div || "dragDrop" in div;
-  }();
-
-  var zwspSupported;
-  function zeroWidthElement(measure) {
-    if (zwspSupported == null) {
-      var test = elt("span", "\u200b");
-      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
-      if (measure.firstChild.offsetHeight != 0)
-        zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
-    }
-    var node = zwspSupported ? elt("span", "\u200b") :
-      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
-    node.setAttribute("cm-text", "");
-    return node;
-  }
-
-  // Feature-detect IE's crummy client rect reporting for bidi text
-  var badBidiRects;
-  function hasBadBidiRects(measure) {
-    if (badBidiRects != null) return badBidiRects;
-    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
-    var r0 = range(txt, 0, 1).getBoundingClientRect();
-    if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
-    var r1 = range(txt, 1, 2).getBoundingClientRect();
-    return badBidiRects = (r1.right - r0.right < 3);
-  }
-
-  // See if "".split is the broken IE version, if so, provide an
-  // alternative way to split lines.
-  var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
-    var pos = 0, result = [], l = string.length;
-    while (pos <= l) {
-      var nl = string.indexOf("\n", pos);
-      if (nl == -1) nl = string.length;
-      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
-      var rt = line.indexOf("\r");
-      if (rt != -1) {
-        result.push(line.slice(0, rt));
-        pos += rt + 1;
-      } else {
-        result.push(line);
-        pos = nl + 1;
-      }
-    }
-    return result;
-  } : function(string){return string.split(/\r\n?|\n/);};
-
-  var hasSelection = window.getSelection ? function(te) {
-    try { return te.selectionStart != te.selectionEnd; }
-    catch(e) { return false; }
-  } : function(te) {
-    try {var range = te.ownerDocument.selection.createRange();}
-    catch(e) {}
-    if (!range || range.parentElement() != te) return false;
-    return range.compareEndPoints("StartToEnd", range) != 0;
-  };
-
-  var hasCopyEvent = (function() {
-    var e = elt("div");
-    if ("oncopy" in e) return true;
-    e.setAttribute("oncopy", "return;");
-    return typeof e.oncopy == "function";
-  })();
-
-  var badZoomedRects = null;
-  function hasBadZoomedRects(measure) {
-    if (badZoomedRects != null) return badZoomedRects;
-    var node = removeChildrenAndAdd(measure, elt("span", "x"));
-    var normal = node.getBoundingClientRect();
-    var fromRange = range(node, 0, 1).getBoundingClientRect();
-    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
-  }
-
-  // KEY NAMES
-
-  var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
-                  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
-                  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
-                  46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete",
-                  173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
-                  221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
-                  63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"};
-  CodeMirror.keyNames = keyNames;
-  (function() {
-    // Number keys
-    for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
-    // Alphabetic keys
-    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
-    // Function keys
-    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
-  })();
-
-  // BIDI HELPERS
-
-  function iterateBidiSections(order, from, to, f) {
-    if (!order) return f(from, to, "ltr");
-    var found = false;
-    for (var i = 0; i < order.length; ++i) {
-      var part = order[i];
-      if (part.from < to && part.to > from || from == to && part.to == from) {
-        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
-        found = true;
-      }
-    }
-    if (!found) f(from, to, "ltr");
-  }
-
-  function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
-  function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
-
-  function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
-  function lineRight(line) {
-    var order = getOrder(line);
-    if (!order) return line.text.length;
-    return bidiRight(lst(order));
-  }
-
-  function lineStart(cm, lineN) {
-    var line = getLine(cm.doc, lineN);
-    var visual = visualLine(line);
-    if (visual != line) lineN = lineNo(visual);
-    var order = getOrder(visual);
-    var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
-    return Pos(lineN, ch);
-  }
-  function lineEnd(cm, lineN) {
-    var merged, line = getLine(cm.doc, lineN);
-    while (merged = collapsedSpanAtEnd(line)) {
-      line = merged.find(1, true).line;
-      lineN = null;
-    }
-    var order = getOrder(line);
-    var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
-    return Pos(lineN == null ? lineNo(line) : lineN, ch);
-  }
-  function lineStartSmart(cm, pos) {
-    var start = lineStart(cm, pos.line);
-    var line = getLine(cm.doc, start.line);
-    var order = getOrder(line);
-    if (!order || order[0].level == 0) {
-      var firstNonWS = Math.max(0, line.text.search(/\S/));
-      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
-      return Pos(start.line, inWS ? 0 : firstNonWS);
-    }
-    return start;
-  }
-
-  function compareBidiLevel(order, a, b) {
-    var linedir = order[0].level;
-    if (a == linedir) return true;
-    if (b == linedir) return false;
-    return a < b;
-  }
-  var bidiOther;
-  function getBidiPartAt(order, pos) {
-    bidiOther = null;
-    for (var i = 0, found; i < order.length; ++i) {
-      var cur = order[i];
-      if (cur.from < pos && cur.to > pos) return i;
-      if ((cur.from == pos || cur.to == pos)) {
-        if (found == null) {
-          found = i;
-        } else if (compareBidiLevel(order, cur.level, order[found].level)) {
-          if (cur.from != cur.to) bidiOther = found;
-          return i;
-        } else {
-          if (cur.from != cur.to) bidiOther = i;
-          return found;
-        }
-      }
-    }
-    return found;
-  }
-
-  function moveInLine(line, pos, dir, byUnit) {
-    if (!byUnit) return pos + dir;
-    do pos += dir;
-    while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
-    return pos;
-  }
-
-  // This is needed in order to move 'visually' through bi-directional
-  // text -- i.e., pressing left should make the cursor go left, even
-  // when in RTL text. The tricky part is the 'jumps', where RTL and
-  // LTR text touch each other. This often requires the cursor offset
-  // to move more than one unit, in order to visually move one unit.
-  function moveVisually(line, start, dir, byUnit) {
-    var bidi = getOrder(line);
-    if (!bidi) return moveLogically(line, start, dir, byUnit);
-    var pos = getBidiPartAt(bidi, start), part = bidi[pos];
-    var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
-
-    for (;;) {
-      if (target > part.from && target < part.to) return target;
-      if (target == part.from || target == part.to) {
-        if (getBidiPartAt(bidi, target) == pos) return target;
-        part = bidi[pos += dir];
-        return (dir > 0) == part.level % 2 ? part.to : part.from;
-      } else {
-        part = bidi[pos += dir];
-        if (!part) return null;
-        if ((dir > 0) == part.level % 2)
-          target = moveInLine(line, part.to, -1, byUnit);
-        else
-          target = moveInLine(line, part.from, 1, byUnit);
-      }
-    }
-  }
-
-  function moveLogically(line, start, dir, byUnit) {
-    var target = start + dir;
-    if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
-    return target < 0 || target > line.text.length ? null : target;
-  }
-
-  // Bidirectional ordering algorithm
-  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
-  // that this (partially) implements.
-
-  // One-char codes used for character types:
-  // L (L):   Left-to-Right
-  // R (R):   Right-to-Left
-  // r (AL):  Right-to-Left Arabic
-  // 1 (EN):  European Number
-  // + (ES):  European Number Separator
-  // % (ET):  European Number Terminator
-  // n (AN):  Arabic Number
-  // , (CS):  Common Number Separator
-  // m (NSM): Non-Spacing Mark
-  // b (BN):  Boundary Neutral
-  // s (B):   Paragraph Separator
-  // t (S):   Segment Separator
-  // w (WS):  Whitespace
-  // N (ON):  Other Neutrals
-
-  // Returns null if characters are ordered as they appear
-  // (left-to-right), or an array of sections ({from, to, level}
-  // objects) in the order in which they occur visually.
-  var bidiOrdering = (function() {
-    // Character types for codepoints 0 to 0xff
-    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
-    // Character types for codepoints 0x600 to 0x6ff
-    var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
-    function charType(code) {
-      if (code <= 0xf7) return lowTypes.charAt(code);
-      else if (0x590 <= code && code <= 0x5f4) return "R";
-      else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
-      else if (0x6ee <= code && code <= 0x8ac) return "r";
-      else if (0x2000 <= code && code <= 0x200b) return "w";
-      else if (code == 0x200c) return "b";
-      else return "L";
-    }
-
-    var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
-    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
-    // Browsers seem to always treat the boundaries of block elements as being L.
-    var outerType = "L";
-
-    function BidiSpan(level, from, to) {
-      this.level = level;
-      this.from = from; this.to = to;
-    }
-
-    return function(str) {
-      if (!bidiRE.test(str)) return false;
-      var len = str.length, types = [];
-      for (var i = 0, type; i < len; ++i)
-        types.push(type = charType(str.charCodeAt(i)));
-
-      // W1. Examine each non-spacing mark (NSM) in the level run, and
-      // change the type of the NSM to the type of the previous
-      // character. If the NSM is at the start of the level run, it will
-      // get the type of sor.
-      for (var i = 0, prev = outerType; i < len; ++i) {
-        var type = types[i];
-        if (type == "m") types[i] = prev;
-        else prev = type;
-      }
-
-      // W2. Search backwards from each instance of a European number
-      // until the first strong type (R, L, AL, or sor) is found. If an
-      // AL is found, change the type of the European number to Arabic
-      // number.
-      // W3. Change all ALs to R.
-      for (var i = 0, cur = outerType; i < len; ++i) {
-        var type = types[i];
-        if (type == "1" && cur == "r") types[i] = "n";
-        else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
-      }
-
-      // W4. A single European separator between two European numbers
-      // changes to a European number. A single common separator between
-      // two numbers of the same type changes to that type.
-      for (var i = 1, prev = types[0]; i < len - 1; ++i) {
-        var type = types[i];
-        if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
-        else if (type == "," && prev == types[i+1] &&
-                 (prev == "1" || prev == "n")) types[i] = prev;
-        prev = type;
-      }
-
-      // W5. A sequence of European terminators adjacent to European
-      // numbers changes to all European numbers.
-      // W6. Otherwise, separators and terminators change to Other
-      // Neutral.
-      for (var i = 0; i < len; ++i) {
-        var type = types[i];
-        if (type == ",") types[i] = "N";
-        else if (type == "%") {
-          for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
-          var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
-          for (var j = i; j < end; ++j) types[j] = replace;
-          i = end - 1;
-        }
-      }
-
-      // W7. Search backwards from each instance of a European number
-      // until the first strong type (R, L, or sor) is found. If an L is
-      // found, then change the type of the European number to L.
-      for (var i = 0, cur = outerType; i < len; ++i) {
-        var type = types[i];
-        if (cur == "L" && type == "1") types[i] = "L";
-        else if (isStrong.test(type)) cur = type;
-      }
-
-      // N1. A sequence of neutrals takes the direction of the
-      // surrounding strong text if the text on both sides has the same
-      // direction. European and Arabic numbers act as if they were R in
-      // terms of their influence on neutrals. Start-of-level-run (sor)
-      // and end-of-level-run (eor) are used at level run boundaries.
-      // N2. Any remaining neutrals take the embedding direction.
-      for (var i = 0; i < len; ++i) {
-        if (isNeutral.test(types[i])) {
-          for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
-          var before = (i ? types[i-1] : outerType) == "L";
-          var after = (end < len ? types[end] : outerType) == "L";
-          var replace = before || after ? "L" : "R";
-          for (var j = i; j < end; ++j) types[j] = replace;
-          i = end - 1;
-        }
-      }
-
-      // Here we depart from the documented algorithm, in order to avoid
-      // building up an actual levels array. Since there are only three
-      // levels (0, 1, 2) in an implementation that doesn't take
-      // explicit embedding into account, we can build up the order on
-      // the fly, without following the level-based algorithm.
-      var order = [], m;
-      for (var i = 0; i < len;) {
-        if (countsAsLeft.test(types[i])) {
-          var start = i;
-          for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
-          order.push(new BidiSpan(0, start, i));
-        } else {
-          var pos = i, at = order.length;
-          for (++i; i < len && types[i] != "L"; ++i) {}
-          for (var j = pos; j < i;) {
-            if (countsAsNum.test(types[j])) {
-              if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
-              var nstart = j;
-              for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
-              order.splice(at, 0, new BidiSpan(2, nstart, j));
-              pos = j;
-            } else ++j;
-          }
-          if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
-        }
-      }
-      if (order[0].level == 1 && (m = str.match(/^\s+/))) {
-        order[0].from = m[0].length;
-        order.unshift(new BidiSpan(0, 0, m[0].length));
-      }
-      if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
-        lst(order).to -= m[0].length;
-        order.push(new BidiSpan(0, len - m[0].length, len));
-      }
-      if (order[0].level == 2)
-        order.unshift(new BidiSpan(1, order[0].to, order[0].to));
-      if (order[0].level != lst(order).level)
-        order.push(new BidiSpan(order[0].level, len, len));
-
-      return order;
-    };
-  })();
-
-  // THE END
-
-  CodeMirror.version = "5.3.0";
-
-  return CodeMirror;
-});
diff --git a/web/dep/codemirror/colorforth.css b/web/dep/codemirror/colorforth.css
deleted file mode 100644
index 36fe525c..00000000
--- a/web/dep/codemirror/colorforth.css
+++ /dev/null
@@ -1,33 +0,0 @@
-.cm-s-colorforth.CodeMirror { background: #000000; color: #f8f8f8; }
-.cm-s-colorforth .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; }
-.cm-s-colorforth .CodeMirror-guttermarker { color: #FFBD40; }
-.cm-s-colorforth .CodeMirror-guttermarker-subtle { color: #78846f; }
-.cm-s-colorforth .CodeMirror-linenumber { color: #bababa; }
-.cm-s-colorforth .CodeMirror-cursor { border-left: 1px solid white !important; }
-
-.cm-s-colorforth span.cm-comment     { color: #ededed; }
-.cm-s-colorforth span.cm-def         { color: #ff1c1c; font-weight:bold; }
-.cm-s-colorforth span.cm-keyword     { color: #ffd900; }
-.cm-s-colorforth span.cm-builtin     { color: #00d95a; }
-.cm-s-colorforth span.cm-variable    { color: #73ff00; }
-.cm-s-colorforth span.cm-string      { color: #007bff; }
-.cm-s-colorforth span.cm-number      { color: #00c4ff; }
-.cm-s-colorforth span.cm-atom        { color: #606060; }
-
-.cm-s-colorforth span.cm-variable-2  { color: #EEE; }
-.cm-s-colorforth span.cm-variable-3  { color: #DDD; }
-.cm-s-colorforth span.cm-property    {}
-.cm-s-colorforth span.cm-operator    {}
-
-.cm-s-colorforth span.cm-meta        { color: yellow; }
-.cm-s-colorforth span.cm-qualifier   { color: #FFF700; }
-.cm-s-colorforth span.cm-tag         { color: lime; }
-.cm-s-colorforth span.cm-bracket     { color: green; }
-.cm-s-colorforth span.cm-attribute   { color: #FFF700; }
-.cm-s-colorforth span.cm-error       { color: #f00; }
-
-.cm-s-colorforth .CodeMirror-selected { background: #333d53 !important; }
-
-.cm-s-colorforth span.cm-compilation { background: rgba(255, 255, 255, 0.12); }
-
-.cm-s-colorforth .CodeMirror-activeline-background {background: #253540 !important;}
diff --git a/web/dep/codemirror/colorforth_.css b/web/dep/codemirror/colorforth_.css
deleted file mode 100644
index 73fbf808..00000000
--- a/web/dep/codemirror/colorforth_.css
+++ /dev/null
@@ -1,33 +0,0 @@
-.cm-s-colorforth.CodeMirror { background: #000000; color: #f8f8f8; }
-.cm-s-colorforth .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; }
-.cm-s-colorforth .CodeMirror-guttermarker { color: #FFBD40; }
-.cm-s-colorforth .CodeMirror-guttermarker-subtle { color: #78846f; }
-.cm-s-colorforth .CodeMirror-linenumber { color: #bababa; }
-.cm-s-colorforth .CodeMirror-cursor { border-left: 1px solid white !important; }
-
-.cm-s-colorforth span.cm-comment     { color: #ededed; }
-.cm-s-colorforth span.cm-def         { color: #ff1c1c; font-weight:bold; }
-.cm-s-colorforth span.cm-keyword     { color: #ffd900; }
-.cm-s-colorforth span.cm-builtin     { color: #00d95a; }
-.cm-s-colorforth span.cm-variable    { color: #73ff00; }
-.cm-s-colorforth span.cm-string      { color: #007bff; }
-.cm-s-colorforth span.cm-number      { color: #00c4ff; }
-.cm-s-colorforth span.cm-atom        { color: #606060; }
-
-.cm-s-colorforth span.cm-variable-2  { color: #EEE; }
-.cm-s-colorforth span.cm-variable-3  { color: #DDD; }
-.cm-s-colorforth span.cm-property    {}
-.cm-s-colorforth span.cm-operator    {}
-
-.cm-s-colorforth span.cm-meta        { color: yellow; }
-.cm-s-colorforth span.cm-qualifier   { color: #FFF700; }
-.cm-s-colorforth span.cm-bracket     { color: #cc7; }
-.cm-s-colorforth span.cm-tag         { color: #FFBD40; }
-.cm-s-colorforth span.cm-attribute   { color: #FFF700; }
-.cm-s-colorforth span.cm-error       { color: #f00; }
-
-.cm-s-colorforth .CodeMirror-selected { background: #333d53 !important; }
-
-.cm-s-colorforth span.cm-compilation { background: rgba(255, 255, 255, 0.12); }
-
-.cm-s-colorforth .CodeMirror-activeline-background {background: #253540 !important;}
diff --git a/web/dep/codemirror/css.js b/web/dep/codemirror/css.js
deleted file mode 100644
index 1e6d2ddb..00000000
--- a/web/dep/codemirror/css.js
+++ /dev/null
@@ -1,754 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    mod(require("../../lib/codemirror"));
-  else if (typeof define == "function" && define.amd) // AMD
-    define(["../../lib/codemirror"], mod);
-  else // Plain browser env
-    mod(CodeMirror);
-})(function(CodeMirror) {
-"use strict";
-
-CodeMirror.defineMode("css", function(config, parserConfig) {
-  if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");
-
-  var indentUnit = config.indentUnit,
-      tokenHooks = parserConfig.tokenHooks,
-      documentTypes = parserConfig.documentTypes || {},
-      mediaTypes = parserConfig.mediaTypes || {},
-      mediaFeatures = parserConfig.mediaFeatures || {},
-      propertyKeywords = parserConfig.propertyKeywords || {},
-      nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
-      fontProperties = parserConfig.fontProperties || {},
-      counterDescriptors = parserConfig.counterDescriptors || {},
-      colorKeywords = parserConfig.colorKeywords || {},
-      valueKeywords = parserConfig.valueKeywords || {},
-      allowNested = parserConfig.allowNested;
-
-  var type, override;
-  function ret(style, tp) { type = tp; return style; }
-
-  // Tokenizers
-
-  function tokenBase(stream, state) {
-    var ch = stream.next();
-    if (tokenHooks[ch]) {
-      var result = tokenHooks[ch](stream, state);
-      if (result !== false) return result;
-    }
-    if (ch == "@") {
-      stream.eatWhile(/[\w\\\-]/);
-      return ret("def", stream.current());
-    } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
-      return ret(null, "compare");
-    } else if (ch == "\"" || ch == "'") {
-      state.tokenize = tokenString(ch);
-      return state.tokenize(stream, state);
-    } else if (ch == "#") {
-      stream.eatWhile(/[\w\\\-]/);
-      return ret("atom", "hash");
-    } else if (ch == "!") {
-      stream.match(/^\s*\w*/);
-      return ret("keyword", "important");
-    } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
-      stream.eatWhile(/[\w.%]/);
-      return ret("number", "unit");
-    } else if (ch === "-") {
-      if (/[\d.]/.test(stream.peek())) {
-        stream.eatWhile(/[\w.%]/);
-        return ret("number", "unit");
-      } else if (stream.match(/^-[\w\\\-]+/)) {
-        stream.eatWhile(/[\w\\\-]/);
-        if (stream.match(/^\s*:/, false))
-          return ret("variable-2", "variable-definition");
-        return ret("variable-2", "variable");
-      } else if (stream.match(/^\w+-/)) {
-        return ret("meta", "meta");
-      }
-    } else if (/[,+>*\/]/.test(ch)) {
-      return ret(null, "select-op");
-    } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
-      return ret("qualifier", "qualifier");
-    } else if (/[:;{}\[\]\(\)]/.test(ch)) {
-      return ret(null, ch);
-    } else if ((ch == "u" && stream.match(/rl(-prefix)?\(/)) ||
-               (ch == "d" && stream.match("omain(")) ||
-               (ch == "r" && stream.match("egexp("))) {
-      stream.backUp(1);
-      state.tokenize = tokenParenthesized;
-      return ret("property", "word");
-    } else if (/[\w\\\-]/.test(ch)) {
-      stream.eatWhile(/[\w\\\-]/);
-      return ret("property", "word");
-    } else {
-      return ret(null, null);
-    }
-  }
-
-  function tokenString(quote) {
-    return function(stream, state) {
-      var escaped = false, ch;
-      while ((ch = stream.next()) != null) {
-        if (ch == quote && !escaped) {
-          if (quote == ")") stream.backUp(1);
-          break;
-        }
-        escaped = !escaped && ch == "\\";
-      }
-      if (ch == quote || !escaped && quote != ")") state.tokenize = null;
-      return ret("string", "string");
-    };
-  }
-
-  function tokenParenthesized(stream, state) {
-    stream.next(); // Must be '('
-    if (!stream.match(/\s*[\"\')]/, false))
-      state.tokenize = tokenString(")");
-    else
-      state.tokenize = null;
-    return ret(null, "(");
-  }
-
-  // Context management
-
-  function Context(type, indent, prev) {
-    this.type = type;
-    this.indent = indent;
-    this.prev = prev;
-  }
-
-  function pushContext(state, stream, type) {
-    state.context = new Context(type, stream.indentation() + indentUnit, state.context);
-    return type;
-  }
-
-  function popContext(state) {
-    state.context = state.context.prev;
-    return state.context.type;
-  }
-
-  function pass(type, stream, state) {
-    return states[state.context.type](type, stream, state);
-  }
-  function popAndPass(type, stream, state, n) {
-    for (var i = n || 1; i > 0; i--)
-      state.context = state.context.prev;
-    return pass(type, stream, state);
-  }
-
-  // Parser
-
-  function wordAsValue(stream) {
-    var word = stream.current().toLowerCase();
-    if (valueKeywords.hasOwnProperty(word))
-      override = "atom";
-    else if (colorKeywords.hasOwnProperty(word))
-      override = "keyword";
-    else
-      override = "variable";
-  }
-
-  var states = {};
-
-  states.top = function(type, stream, state) {
-    if (type == "{") {
-      return pushContext(state, stream, "block");
-    } else if (type == "}" && state.context.prev) {
-      return popContext(state);
-    } else if (/@(media|supports|(-moz-)?document)/.test(type)) {
-      return pushContext(state, stream, "atBlock");
-    } else if (/@(font-face|counter-style)/.test(type)) {
-      state.stateArg = type;
-      return "restricted_atBlock_before";
-    } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {
-      return "keyframes";
-    } else if (type && type.charAt(0) == "@") {
-      return pushContext(state, stream, "at");
-    } else if (type == "hash") {
-      override = "builtin";
-    } else if (type == "word") {
-      override = "tag";
-    } else if (type == "variable-definition") {
-      return "maybeprop";
-    } else if (type == "interpolation") {
-      return pushContext(state, stream, "interpolation");
-    } else if (type == ":") {
-      return "pseudo";
-    } else if (allowNested && type == "(") {
-      return pushContext(state, stream, "parens");
-    }
-    return state.context.type;
-  };
-
-  states.block = function(type, stream, state) {
-    if (type == "word") {
-      var word = stream.current().toLowerCase();
-      if (propertyKeywords.hasOwnProperty(word)) {
-        override = "property";
-        return "maybeprop";
-      } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
-        override = "string-2";
-        return "maybeprop";
-      } else if (allowNested) {
-        override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
-        return "block";
-      } else {
-        override += " error";
-        return "maybeprop";
-      }
-    } else if (type == "meta") {
-      return "block";
-    } else if (!allowNested && (type == "hash" || type == "qualifier")) {
-      override = "error";
-      return "block";
-    } else {
-      return states.top(type, stream, state);
-    }
-  };
-
-  states.maybeprop = function(type, stream, state) {
-    if (type == ":") return pushContext(state, stream, "prop");
-    return pass(type, stream, state);
-  };
-
-  states.prop = function(type, stream, state) {
-    if (type == ";") return popContext(state);
-    if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
-    if (type == "}" || type == "{") return popAndPass(type, stream, state);
-    if (type == "(") return pushContext(state, stream, "parens");
-
-    if (type == "hash" && !/^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/.test(stream.current())) {
-      override += " error";
-    } else if (type == "word") {
-      wordAsValue(stream);
-    } else if (type == "interpolation") {
-      return pushContext(state, stream, "interpolation");
-    }
-    return "prop";
-  };
-
-  states.propBlock = function(type, _stream, state) {
-    if (type == "}") return popContext(state);
-    if (type == "word") { override = "property"; return "maybeprop"; }
-    return state.context.type;
-  };
-
-  states.parens = function(type, stream, state) {
-    if (type == "{" || type == "}") return popAndPass(type, stream, state);
-    if (type == ")") return popContext(state);
-    if (type == "(") return pushContext(state, stream, "parens");
-    if (type == "interpolation") return pushContext(state, stream, "interpolation");
-    if (type == "word") wordAsValue(stream);
-    return "parens";
-  };
-
-  states.pseudo = function(type, stream, state) {
-    if (type == "word") {
-      override = "variable-3";
-      return state.context.type;
-    }
-    return pass(type, stream, state);
-  };
-
-  states.atBlock = function(type, stream, state) {
-    if (type == "(") return pushContext(state, stream, "atBlock_parens");
-    if (type == "}") return popAndPass(type, stream, state);
-    if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");
-
-    if (type == "word") {
-      var word = stream.current().toLowerCase();
-      if (word == "only" || word == "not" || word == "and" || word == "or")
-        override = "keyword";
-      else if (documentTypes.hasOwnProperty(word))
-        override = "tag";
-      else if (mediaTypes.hasOwnProperty(word))
-        override = "attribute";
-      else if (mediaFeatures.hasOwnProperty(word))
-        override = "property";
-      else if (propertyKeywords.hasOwnProperty(word))
-        override = "property";
-      else if (nonStandardPropertyKeywords.hasOwnProperty(word))
-        override = "string-2";
-      else if (valueKeywords.hasOwnProperty(word))
-        override = "atom";
-      else
-        override = "error";
-    }
-    return state.context.type;
-  };
-
-  states.atBlock_parens = function(type, stream, state) {
-    if (type == ")") return popContext(state);
-    if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
-    return states.atBlock(type, stream, state);
-  };
-
-  states.restricted_atBlock_before = function(type, stream, state) {
-    if (type == "{")
-      return pushContext(state, stream, "restricted_atBlock");
-    if (type == "word" && state.stateArg == "@counter-style") {
-      override = "variable";
-      return "restricted_atBlock_before";
-    }
-    return pass(type, stream, state);
-  };
-
-  states.restricted_atBlock = function(type, stream, state) {
-    if (type == "}") {
-      state.stateArg = null;
-      return popContext(state);
-    }
-    if (type == "word") {
-      if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
-          (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
-        override = "error";
-      else
-        override = "property";
-      return "maybeprop";
-    }
-    return "restricted_atBlock";
-  };
-
-  states.keyframes = function(type, stream, state) {
-    if (type == "word") { override = "variable"; return "keyframes"; }
-    if (type == "{") return pushContext(state, stream, "top");
-    return pass(type, stream, state);
-  };
-
-  states.at = function(type, stream, state) {
-    if (type == ";") return popContext(state);
-    if (type == "{" || type == "}") return popAndPass(type, stream, state);
-    if (type == "word") override = "tag";
-    else if (type == "hash") override = "builtin";
-    return "at";
-  };
-
-  states.interpolation = function(type, stream, state) {
-    if (type == "}") return popContext(state);
-    if (type == "{" || type == ";") return popAndPass(type, stream, state);
-    if (type == "word") override = "variable";
-    else if (type != "variable" && type != "(" && type != ")") override = "error";
-    return "interpolation";
-  };
-
-  return {
-    startState: function(base) {
-      return {tokenize: null,
-              state: "top",
-              stateArg: null,
-              context: new Context("top", base || 0, null)};
-    },
-
-    token: function(stream, state) {
-      if (!state.tokenize && stream.eatSpace()) return null;
-      var style = (state.tokenize || tokenBase)(stream, state);
-      if (style && typeof style == "object") {
-        type = style[1];
-        style = style[0];
-      }
-      override = style;
-      state.state = states[state.state](type, stream, state);
-      return override;
-    },
-
-    indent: function(state, textAfter) {
-      var cx = state.context, ch = textAfter && textAfter.charAt(0);
-      var indent = cx.indent;
-      if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
-      if (cx.prev &&
-          (ch == "}" && (cx.type == "block" || cx.type == "top" || cx.type == "interpolation" || cx.type == "restricted_atBlock") ||
-           ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
-           ch == "{" && (cx.type == "at" || cx.type == "atBlock"))) {
-        indent = cx.indent - indentUnit;
-        cx = cx.prev;
-      }
-      return indent;
-    },
-
-    electricChars: "}",
-    blockCommentStart: "/*",
-    blockCommentEnd: "*/",
-    fold: "brace"
-  };
-});
-
-  function keySet(array) {
-    var keys = {};
-    for (var i = 0; i < array.length; ++i) {
-      keys[array[i]] = true;
-    }
-    return keys;
-  }
-
-  var documentTypes_ = [
-    "domain", "regexp", "url", "url-prefix"
-  ], documentTypes = keySet(documentTypes_);
-
-  var mediaTypes_ = [
-    "all", "aural", "braille", "handheld", "print", "projection", "screen",
-    "tty", "tv", "embossed"
-  ], mediaTypes = keySet(mediaTypes_);
-
-  var mediaFeatures_ = [
-    "width", "min-width", "max-width", "height", "min-height", "max-height",
-    "device-width", "min-device-width", "max-device-width", "device-height",
-    "min-device-height", "max-device-height", "aspect-ratio",
-    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
-    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
-    "max-color", "color-index", "min-color-index", "max-color-index",
-    "monochrome", "min-monochrome", "max-monochrome", "resolution",
-    "min-resolution", "max-resolution", "scan", "grid"
-  ], mediaFeatures = keySet(mediaFeatures_);
-
-  var propertyKeywords_ = [
-    "align-content", "align-items", "align-self", "alignment-adjust",
-    "alignment-baseline", "anchor-point", "animation", "animation-delay",
-    "animation-direction", "animation-duration", "animation-fill-mode",
-    "animation-iteration-count", "animation-name", "animation-play-state",
-    "animation-timing-function", "appearance", "azimuth", "backface-visibility",
-    "background", "background-attachment", "background-clip", "background-color",
-    "background-image", "background-origin", "background-position",
-    "background-repeat", "background-size", "baseline-shift", "binding",
-    "bleed", "bookmark-label", "bookmark-level", "bookmark-state",
-    "bookmark-target", "border", "border-bottom", "border-bottom-color",
-    "border-bottom-left-radius", "border-bottom-right-radius",
-    "border-bottom-style", "border-bottom-width", "border-collapse",
-    "border-color", "border-image", "border-image-outset",
-    "border-image-repeat", "border-image-slice", "border-image-source",
-    "border-image-width", "border-left", "border-left-color",
-    "border-left-style", "border-left-width", "border-radius", "border-right",
-    "border-right-color", "border-right-style", "border-right-width",
-    "border-spacing", "border-style", "border-top", "border-top-color",
-    "border-top-left-radius", "border-top-right-radius", "border-top-style",
-    "border-top-width", "border-width", "bottom", "box-decoration-break",
-    "box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
-    "caption-side", "clear", "clip", "color", "color-profile", "column-count",
-    "column-fill", "column-gap", "column-rule", "column-rule-color",
-    "column-rule-style", "column-rule-width", "column-span", "column-width",
-    "columns", "content", "counter-increment", "counter-reset", "crop", "cue",
-    "cue-after", "cue-before", "cursor", "direction", "display",
-    "dominant-baseline", "drop-initial-after-adjust",
-    "drop-initial-after-align", "drop-initial-before-adjust",
-    "drop-initial-before-align", "drop-initial-size", "drop-initial-value",
-    "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
-    "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
-    "float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings",
-    "font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust",
-    "font-stretch", "font-style", "font-synthesis", "font-variant",
-    "font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
-    "font-variant-ligatures", "font-variant-numeric", "font-variant-position",
-    "font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow",
-    "grid-auto-position", "grid-auto-rows", "grid-column", "grid-column-end",
-    "grid-column-start", "grid-row", "grid-row-end", "grid-row-start",
-    "grid-template", "grid-template-areas", "grid-template-columns",
-    "grid-template-rows", "hanging-punctuation", "height", "hyphens",
-    "icon", "image-orientation", "image-rendering", "image-resolution",
-    "inline-box-align", "justify-content", "left", "letter-spacing",
-    "line-break", "line-height", "line-stacking", "line-stacking-ruby",
-    "line-stacking-shift", "line-stacking-strategy", "list-style",
-    "list-style-image", "list-style-position", "list-style-type", "margin",
-    "margin-bottom", "margin-left", "margin-right", "margin-top",
-    "marker-offset", "marks", "marquee-direction", "marquee-loop",
-    "marquee-play-count", "marquee-speed", "marquee-style", "max-height",
-    "max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index",
-    "nav-left", "nav-right", "nav-up", "object-fit", "object-position",
-    "opacity", "order", "orphans", "outline",
-    "outline-color", "outline-offset", "outline-style", "outline-width",
-    "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
-    "padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
-    "page", "page-break-after", "page-break-before", "page-break-inside",
-    "page-policy", "pause", "pause-after", "pause-before", "perspective",
-    "perspective-origin", "pitch", "pitch-range", "play-during", "position",
-    "presentation-level", "punctuation-trim", "quotes", "region-break-after",
-    "region-break-before", "region-break-inside", "region-fragment",
-    "rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness",
-    "right", "rotation", "rotation-point", "ruby-align", "ruby-overhang",
-    "ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin",
-    "shape-outside", "size", "speak", "speak-as", "speak-header",
-    "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
-    "tab-size", "table-layout", "target", "target-name", "target-new",
-    "target-position", "text-align", "text-align-last", "text-decoration",
-    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
-    "text-decoration-style", "text-emphasis", "text-emphasis-color",
-    "text-emphasis-position", "text-emphasis-style", "text-height",
-    "text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow",
-    "text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position",
-    "text-wrap", "top", "transform", "transform-origin", "transform-style",
-    "transition", "transition-delay", "transition-duration",
-    "transition-property", "transition-timing-function", "unicode-bidi",
-    "vertical-align", "visibility", "voice-balance", "voice-duration",
-    "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
-    "voice-volume", "volume", "white-space", "widows", "width", "word-break",
-    "word-spacing", "word-wrap", "z-index",
-    // SVG-specific
-    "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
-    "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
-    "color-interpolation", "color-interpolation-filters",
-    "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
-    "marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke",
-    "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
-    "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
-    "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
-    "glyph-orientation-vertical", "text-anchor", "writing-mode"
-  ], propertyKeywords = keySet(propertyKeywords_);
-
-  var nonStandardPropertyKeywords_ = [
-    "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
-    "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
-    "scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside",
-    "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button",
-    "searchfield-results-decoration", "zoom"
-  ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);
-
-  var fontProperties_ = [
-    "font-family", "src", "unicode-range", "font-variant", "font-feature-settings",
-    "font-stretch", "font-weight", "font-style"
-  ], fontProperties = keySet(fontProperties_);
-
-  var counterDescriptors_ = [
-    "additive-symbols", "fallback", "negative", "pad", "prefix", "range",
-    "speak-as", "suffix", "symbols", "system"
-  ], counterDescriptors = keySet(counterDescriptors_);
-
-  var colorKeywords_ = [
-    "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
-    "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
-    "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
-    "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
-    "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen",
-    "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
-    "darkslateblue", "darkslategray", "darkturquoise", "darkviolet",
-    "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick",
-    "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
-    "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
-    "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
-    "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
-    "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink",
-    "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray",
-    "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
-    "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
-    "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
-    "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
-    "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
-    "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
-    "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
-    "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
-    "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
-    "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan",
-    "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
-    "whitesmoke", "yellow", "yellowgreen"
-  ], colorKeywords = keySet(colorKeywords_);
-
-  var valueKeywords_ = [
-    "above", "absolute", "activeborder", "additive", "activecaption", "afar",
-    "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
-    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
-    "arabic-indic", "armenian", "asterisks", "attr", "auto", "avoid", "avoid-column", "avoid-page",
-    "avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary",
-    "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
-    "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel",
-    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
-    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
-    "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
-    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
-    "col-resize", "collapse", "column", "compact", "condensed", "contain", "content",
-    "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop",
-    "cross", "crosshair", "currentcolor", "cursive", "cyclic", "dashed", "decimal",
-    "decimal-leading-zero", "default", "default-button", "destination-atop",
-    "destination-in", "destination-out", "destination-over", "devanagari",
-    "disc", "discard", "disclosure-closed", "disclosure-open", "document",
-    "dot-dash", "dot-dot-dash",
-    "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
-    "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
-    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
-    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
-    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
-    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
-    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
-    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
-    "ethiopic-numeric", "ew-resize", "expanded", "extends", "extra-condensed",
-    "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "footnotes",
-    "forwards", "from", "geometricPrecision", "georgian", "graytext", "groove",
-    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hebrew",
-    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
-    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "icon", "ignore",
-    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
-    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
-    "inline-block", "inline-flex", "inline-table", "inset", "inside", "intrinsic", "invert",
-    "italic", "japanese-formal", "japanese-informal", "justify", "kannada",
-    "katakana", "katakana-iroha", "keep-all", "khmer",
-    "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
-    "landscape", "lao", "large", "larger", "left", "level", "lighter",
-    "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
-    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
-    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
-    "lower-roman", "lowercase", "ltr", "malayalam", "match", "matrix", "matrix3d",
-    "media-controls-background", "media-current-time-display",
-    "media-fullscreen-button", "media-mute-button", "media-play-button",
-    "media-return-to-realtime-button", "media-rewind-button",
-    "media-seek-back-button", "media-seek-forward-button", "media-slider",
-    "media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
-    "media-volume-slider-container", "media-volume-sliderthumb", "medium",
-    "menu", "menulist", "menulist-button", "menulist-text",
-    "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
-    "mix", "mongolian", "monospace", "move", "multiple", "myanmar", "n-resize",
-    "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
-    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
-    "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "open-quote",
-    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
-    "outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
-    "painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter",
-    "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
-    "progress", "push-button", "radial-gradient", "radio", "read-only",
-    "read-write", "read-write-plaintext-only", "rectangle", "region",
-    "relative", "repeat", "repeating-linear-gradient",
-    "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse",
-    "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
-    "rotateZ", "round", "row-resize", "rtl", "run-in", "running",
-    "s-resize", "sans-serif", "scale", "scale3d", "scaleX", "scaleY", "scaleZ",
-    "scroll", "scrollbar", "se-resize", "searchfield",
-    "searchfield-cancel-button", "searchfield-decoration",
-    "searchfield-results-button", "searchfield-results-decoration",
-    "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
-    "simp-chinese-formal", "simp-chinese-informal", "single",
-    "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
-    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
-    "small", "small-caps", "small-caption", "smaller", "solid", "somali",
-    "source-atop", "source-in", "source-out", "source-over", "space", "spell-out", "square",
-    "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub",
-    "subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "table",
-    "table-caption", "table-cell", "table-column", "table-column-group",
-    "table-footer-group", "table-header-group", "table-row", "table-row-group",
-    "tamil",
-    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
-    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
-    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
-    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
-    "trad-chinese-formal", "trad-chinese-informal",
-    "translate", "translate3d", "translateX", "translateY", "translateZ",
-    "transparent", "ultra-condensed", "ultra-expanded", "underline", "up",
-    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
-    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
-    "var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
-    "visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
-    "window", "windowframe", "windowtext", "words", "x-large", "x-small", "xor",
-    "xx-large", "xx-small"
-  ], valueKeywords = keySet(valueKeywords_);
-
-  var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(propertyKeywords_)
-    .concat(nonStandardPropertyKeywords_).concat(colorKeywords_).concat(valueKeywords_);
-  CodeMirror.registerHelper("hintWords", "css", allWords);
-
-  function tokenCComment(stream, state) {
-    var maybeEnd = false, ch;
-    while ((ch = stream.next()) != null) {
-      if (maybeEnd && ch == "/") {
-        state.tokenize = null;
-        break;
-      }
-      maybeEnd = (ch == "*");
-    }
-    return ["comment", "comment"];
-  }
-
-  CodeMirror.defineMIME("text/css", {
-    documentTypes: documentTypes,
-    mediaTypes: mediaTypes,
-    mediaFeatures: mediaFeatures,
-    propertyKeywords: propertyKeywords,
-    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
-    fontProperties: fontProperties,
-    counterDescriptors: counterDescriptors,
-    colorKeywords: colorKeywords,
-    valueKeywords: valueKeywords,
-    tokenHooks: {
-      "/": function(stream, state) {
-        if (!stream.eat("*")) return false;
-        state.tokenize = tokenCComment;
-        return tokenCComment(stream, state);
-      }
-    },
-    name: "css"
-  });
-
-  CodeMirror.defineMIME("text/x-scss", {
-    mediaTypes: mediaTypes,
-    mediaFeatures: mediaFeatures,
-    propertyKeywords: propertyKeywords,
-    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
-    colorKeywords: colorKeywords,
-    valueKeywords: valueKeywords,
-    fontProperties: fontProperties,
-    allowNested: true,
-    tokenHooks: {
-      "/": function(stream, state) {
-        if (stream.eat("/")) {
-          stream.skipToEnd();
-          return ["comment", "comment"];
-        } else if (stream.eat("*")) {
-          state.tokenize = tokenCComment;
-          return tokenCComment(stream, state);
-        } else {
-          return ["operator", "operator"];
-        }
-      },
-      ":": function(stream) {
-        if (stream.match(/\s*\{/))
-          return [null, "{"];
-        return false;
-      },
-      "$": function(stream) {
-        stream.match(/^[\w-]+/);
-        if (stream.match(/^\s*:/, false))
-          return ["variable-2", "variable-definition"];
-        return ["variable-2", "variable"];
-      },
-      "#": function(stream) {
-        if (!stream.eat("{")) return false;
-        return [null, "interpolation"];
-      }
-    },
-    name: "css",
-    helperType: "scss"
-  });
-
-  CodeMirror.defineMIME("text/x-less", {
-    mediaTypes: mediaTypes,
-    mediaFeatures: mediaFeatures,
-    propertyKeywords: propertyKeywords,
-    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
-    colorKeywords: colorKeywords,
-    valueKeywords: valueKeywords,
-    fontProperties: fontProperties,
-    allowNested: true,
-    tokenHooks: {
-      "/": function(stream, state) {
-        if (stream.eat("/")) {
-          stream.skipToEnd();
-          return ["comment", "comment"];
-        } else if (stream.eat("*")) {
-          state.tokenize = tokenCComment;
-          return tokenCComment(stream, state);
-        } else {
-          return ["operator", "operator"];
-        }
-      },
-      "@": function(stream) {
-        if (stream.eat("{")) return [null, "interpolation"];
-        if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/, false)) return false;
-        stream.eatWhile(/[\w\\\-]/);
-        if (stream.match(/^\s*:/, false))
-          return ["variable-2", "variable-definition"];
-        return ["variable-2", "variable"];
-      },
-      "&": function() {
-        return ["atom", "atom"];
-      }
-    },
-    name: "css",
-    helperType: "less"
-  });
-
-});
diff --git a/web/dep/codemirror/htmlmixed.js b/web/dep/codemirror/htmlmixed.js
deleted file mode 100644
index 24552e2d..00000000
--- a/web/dep/codemirror/htmlmixed.js
+++ /dev/null
@@ -1,121 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css"));
-  else if (typeof define == "function" && define.amd) // AMD
-    define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], mod);
-  else // Plain browser env
-    mod(CodeMirror);
-})(function(CodeMirror) {
-"use strict";
-
-CodeMirror.defineMode("htmlmixed", function(config, parserConfig) {
-  var htmlMode = CodeMirror.getMode(config, {name: "xml",
-                                             htmlMode: true,
-                                             multilineTagIndentFactor: parserConfig.multilineTagIndentFactor,
-                                             multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag});
-  var cssMode = CodeMirror.getMode(config, "css");
-
-  var scriptTypes = [], scriptTypesConf = parserConfig && parserConfig.scriptTypes;
-  scriptTypes.push({matches: /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^$/i,
-                    mode: CodeMirror.getMode(config, "javascript")});
-  if (scriptTypesConf) for (var i = 0; i < scriptTypesConf.length; ++i) {
-    var conf = scriptTypesConf[i];
-    scriptTypes.push({matches: conf.matches, mode: conf.mode && CodeMirror.getMode(config, conf.mode)});
-  }
-  scriptTypes.push({matches: /./,
-                    mode: CodeMirror.getMode(config, "text/plain")});
-
-  function html(stream, state) {
-    var tagName = state.htmlState.tagName;
-    if (tagName) tagName = tagName.toLowerCase();
-    var style = htmlMode.token(stream, state.htmlState);
-    if (tagName == "script" && /\btag\b/.test(style) && stream.current() == ">") {
-      // Script block: mode to change to depends on type attribute
-      var scriptType = stream.string.slice(Math.max(0, stream.pos - 100), stream.pos).match(/\btype\s*=\s*("[^"]+"|'[^']+'|\S+)[^<]*$/i);
-      scriptType = scriptType ? scriptType[1] : "";
-      if (scriptType && /[\"\']/.test(scriptType.charAt(0))) scriptType = scriptType.slice(1, scriptType.length - 1);
-      for (var i = 0; i < scriptTypes.length; ++i) {
-        var tp = scriptTypes[i];
-        if (typeof tp.matches == "string" ? scriptType == tp.matches : tp.matches.test(scriptType)) {
-          if (tp.mode) {
-            state.token = script;
-            state.localMode = tp.mode;
-            state.localState = tp.mode.startState && tp.mode.startState(htmlMode.indent(state.htmlState, ""));
-          }
-          break;
-        }
-      }
-    } else if (tagName == "style" && /\btag\b/.test(style) && stream.current() == ">") {
-      state.token = css;
-      state.localMode = cssMode;
-      state.localState = cssMode.startState(htmlMode.indent(state.htmlState, ""));
-    }
-    return style;
-  }
-  function maybeBackup(stream, pat, style) {
-    var cur = stream.current();
-    var close = cur.search(pat);
-    if (close > -1) stream.backUp(cur.length - close);
-    else if (cur.match(/<\/?$/)) {
-      stream.backUp(cur.length);
-      if (!stream.match(pat, false)) stream.match(cur);
-    }
-    return style;
-  }
-  function script(stream, state) {
-    if (stream.match(/^<\/\s*script\s*>/i, false)) {
-      state.token = html;
-      state.localState = state.localMode = null;
-      return null;
-    }
-    return maybeBackup(stream, /<\/\s*script\s*>/,
-                       state.localMode.token(stream, state.localState));
-  }
-  function css(stream, state) {
-    if (stream.match(/^<\/\s*style\s*>/i, false)) {
-      state.token = html;
-      state.localState = state.localMode = null;
-      return null;
-    }
-    return maybeBackup(stream, /<\/\s*style\s*>/,
-                       cssMode.token(stream, state.localState));
-  }
-
-  return {
-    startState: function() {
-      var state = htmlMode.startState();
-      return {token: html, localMode: null, localState: null, htmlState: state};
-    },
-
-    copyState: function(state) {
-      if (state.localState)
-        var local = CodeMirror.copyState(state.localMode, state.localState);
-      return {token: state.token, localMode: state.localMode, localState: local,
-              htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
-    },
-
-    token: function(stream, state) {
-      return state.token(stream, state);
-    },
-
-    indent: function(state, textAfter) {
-      if (!state.localMode || /^\s*<\//.test(textAfter))
-        return htmlMode.indent(state.htmlState, textAfter);
-      else if (state.localMode.indent)
-        return state.localMode.indent(state.localState, textAfter);
-      else
-        return CodeMirror.Pass;
-    },
-
-    innerMode: function(state) {
-      return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode};
-    }
-  };
-}, "xml", "javascript", "css");
-
-CodeMirror.defineMIME("text/html", "htmlmixed");
-
-});
diff --git a/web/dep/codemirror/javascript.js b/web/dep/codemirror/javascript.js
deleted file mode 100644
index ef018478..00000000
--- a/web/dep/codemirror/javascript.js
+++ /dev/null
@@ -1,701 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-// TODO actually recognize syntax of TypeScript constructs
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    mod(require("../../lib/codemirror"));
-  else if (typeof define == "function" && define.amd) // AMD
-    define(["../../lib/codemirror"], mod);
-  else // Plain browser env
-    mod(CodeMirror);
-})(function(CodeMirror) {
-"use strict";
-
-CodeMirror.defineMode("javascript", function(config, parserConfig) {
-  var indentUnit = config.indentUnit;
-  var statementIndent = parserConfig.statementIndent;
-  var jsonldMode = parserConfig.jsonld;
-  var jsonMode = parserConfig.json || jsonldMode;
-  var isTS = parserConfig.typescript;
-  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
-
-  // Tokenizer
-
-  var keywords = function(){
-    function kw(type) {return {type: type, style: "keyword"};}
-    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
-    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
-
-    var jsKeywords = {
-      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
-      "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C, "debugger": C,
-      "var": kw("var"), "const": kw("var"), "let": kw("var"),
-      "function": kw("function"), "catch": kw("catch"),
-      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
-      "in": operator, "typeof": operator, "instanceof": operator,
-      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
-      "this": kw("this"), "module": kw("module"), "class": kw("class"), "super": kw("atom"),
-      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C
-    };
-
-    // Extend the 'normal' keywords with the TypeScript language extensions
-    if (isTS) {
-      var type = {type: "variable", style: "variable-3"};
-      var tsKeywords = {
-        // object-like things
-        "interface": kw("interface"),
-        "extends": kw("extends"),
-        "constructor": kw("constructor"),
-
-        // scope modifiers
-        "public": kw("public"),
-        "private": kw("private"),
-        "protected": kw("protected"),
-        "static": kw("static"),
-
-        // types
-        "string": type, "number": type, "bool": type, "any": type
-      };
-
-      for (var attr in tsKeywords) {
-        jsKeywords[attr] = tsKeywords[attr];
-      }
-    }
-
-    return jsKeywords;
-  }();
-
-  var isOperatorChar = /[+\-*&%=<>!?|~^]/;
-  var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
-
-  function readRegexp(stream) {
-    var escaped = false, next, inSet = false;
-    while ((next = stream.next()) != null) {
-      if (!escaped) {
-        if (next == "/" && !inSet) return;
-        if (next == "[") inSet = true;
-        else if (inSet && next == "]") inSet = false;
-      }
-      escaped = !escaped && next == "\\";
-    }
-  }
-
-  // Used as scratch variables to communicate multiple values without
-  // consing up tons of objects.
-  var type, content;
-  function ret(tp, style, cont) {
-    type = tp; content = cont;
-    return style;
-  }
-  function tokenBase(stream, state) {
-    var ch = stream.next();
-    if (ch == '"' || ch == "'") {
-      state.tokenize = tokenString(ch);
-      return state.tokenize(stream, state);
-    } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
-      return ret("number", "number");
-    } else if (ch == "." && stream.match("..")) {
-      return ret("spread", "meta");
-    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
-      return ret(ch);
-    } else if (ch == "=" && stream.eat(">")) {
-      return ret("=>", "operator");
-    } else if (ch == "0" && stream.eat(/x/i)) {
-      stream.eatWhile(/[\da-f]/i);
-      return ret("number", "number");
-    } else if (/\d/.test(ch)) {
-      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
-      return ret("number", "number");
-    } else if (ch == "/") {
-      if (stream.eat("*")) {
-        state.tokenize = tokenComment;
-        return tokenComment(stream, state);
-      } else if (stream.eat("/")) {
-        stream.skipToEnd();
-        return ret("comment", "comment");
-      } else if (state.lastType == "operator" || state.lastType == "keyword c" ||
-               state.lastType == "sof" || /^[\[{}\(,;:]$/.test(state.lastType)) {
-        readRegexp(stream);
-        stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
-        return ret("regexp", "string-2");
-      } else {
-        stream.eatWhile(isOperatorChar);
-        return ret("operator", "operator", stream.current());
-      }
-    } else if (ch == "`") {
-      state.tokenize = tokenQuasi;
-      return tokenQuasi(stream, state);
-    } else if (ch == "#") {
-      stream.skipToEnd();
-      return ret("error", "error");
-    } else if (isOperatorChar.test(ch)) {
-      stream.eatWhile(isOperatorChar);
-      return ret("operator", "operator", stream.current());
-    } else if (wordRE.test(ch)) {
-      stream.eatWhile(wordRE);
-      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
-      return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
-                     ret("variable", "variable", word);
-    }
-  }
-
-  function tokenString(quote) {
-    return function(stream, state) {
-      var escaped = false, next;
-      if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
-        state.tokenize = tokenBase;
-        return ret("jsonld-keyword", "meta");
-      }
-      while ((next = stream.next()) != null) {
-        if (next == quote && !escaped) break;
-        escaped = !escaped && next == "\\";
-      }
-      if (!escaped) state.tokenize = tokenBase;
-      return ret("string", "string");
-    };
-  }
-
-  function tokenComment(stream, state) {
-    var maybeEnd = false, ch;
-    while (ch = stream.next()) {
-      if (ch == "/" && maybeEnd) {
-        state.tokenize = tokenBase;
-        break;
-      }
-      maybeEnd = (ch == "*");
-    }
-    return ret("comment", "comment");
-  }
-
-  function tokenQuasi(stream, state) {
-    var escaped = false, next;
-    while ((next = stream.next()) != null) {
-      if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
-        state.tokenize = tokenBase;
-        break;
-      }
-      escaped = !escaped && next == "\\";
-    }
-    return ret("quasi", "string-2", stream.current());
-  }
-
-  var brackets = "([{}])";
-  // This is a crude lookahead trick to try and notice that we're
-  // parsing the argument patterns for a fat-arrow function before we
-  // actually hit the arrow token. It only works if the arrow is on
-  // the same line as the arguments and there's no strange noise
-  // (comments) in between. Fallback is to only notice when we hit the
-  // arrow, and not declare the arguments as locals for the arrow
-  // body.
-  function findFatArrow(stream, state) {
-    if (state.fatArrowAt) state.fatArrowAt = null;
-    var arrow = stream.string.indexOf("=>", stream.start);
-    if (arrow < 0) return;
-
-    var depth = 0, sawSomething = false;
-    for (var pos = arrow - 1; pos >= 0; --pos) {
-      var ch = stream.string.charAt(pos);
-      var bracket = brackets.indexOf(ch);
-      if (bracket >= 0 && bracket < 3) {
-        if (!depth) { ++pos; break; }
-        if (--depth == 0) break;
-      } else if (bracket >= 3 && bracket < 6) {
-        ++depth;
-      } else if (wordRE.test(ch)) {
-        sawSomething = true;
-      } else if (/["'\/]/.test(ch)) {
-        return;
-      } else if (sawSomething && !depth) {
-        ++pos;
-        break;
-      }
-    }
-    if (sawSomething && !depth) state.fatArrowAt = pos;
-  }
-
-  // Parser
-
-  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
-
-  function JSLexical(indented, column, type, align, prev, info) {
-    this.indented = indented;
-    this.column = column;
-    this.type = type;
-    this.prev = prev;
-    this.info = info;
-    if (align != null) this.align = align;
-  }
-
-  function inScope(state, varname) {
-    for (var v = state.localVars; v; v = v.next)
-      if (v.name == varname) return true;
-    for (var cx = state.context; cx; cx = cx.prev) {
-      for (var v = cx.vars; v; v = v.next)
-        if (v.name == varname) return true;
-    }
-  }
-
-  function parseJS(state, style, type, content, stream) {
-    var cc = state.cc;
-    // Communicate our context to the combinators.
-    // (Less wasteful than consing up a hundred closures on every call.)
-    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
-
-    if (!state.lexical.hasOwnProperty("align"))
-      state.lexical.align = true;
-
-    while(true) {
-      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
-      if (combinator(type, content)) {
-        while(cc.length && cc[cc.length - 1].lex)
-          cc.pop()();
-        if (cx.marked) return cx.marked;
-        if (type == "variable" && inScope(state, content)) return "variable-2";
-        return style;
-      }
-    }
-  }
-
-  // Combinator utils
-
-  var cx = {state: null, column: null, marked: null, cc: null};
-  function pass() {
-    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
-  }
-  function cont() {
-    pass.apply(null, arguments);
-    return true;
-  }
-  function register(varname) {
-    function inList(list) {
-      for (var v = list; v; v = v.next)
-        if (v.name == varname) return true;
-      return false;
-    }
-    var state = cx.state;
-    if (state.context) {
-      cx.marked = "def";
-      if (inList(state.localVars)) return;
-      state.localVars = {name: varname, next: state.localVars};
-    } else {
-      if (inList(state.globalVars)) return;
-      if (parserConfig.globalVars)
-        state.globalVars = {name: varname, next: state.globalVars};
-    }
-  }
-
-  // Combinators
-
-  var defaultVars = {name: "this", next: {name: "arguments"}};
-  function pushcontext() {
-    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
-    cx.state.localVars = defaultVars;
-  }
-  function popcontext() {
-    cx.state.localVars = cx.state.context.vars;
-    cx.state.context = cx.state.context.prev;
-  }
-  function pushlex(type, info) {
-    var result = function() {
-      var state = cx.state, indent = state.indented;
-      if (state.lexical.type == "stat") indent = state.lexical.indented;
-      else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
-        indent = outer.indented;
-      state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
-    };
-    result.lex = true;
-    return result;
-  }
-  function poplex() {
-    var state = cx.state;
-    if (state.lexical.prev) {
-      if (state.lexical.type == ")")
-        state.indented = state.lexical.indented;
-      state.lexical = state.lexical.prev;
-    }
-  }
-  poplex.lex = true;
-
-  function expect(wanted) {
-    function exp(type) {
-      if (type == wanted) return cont();
-      else if (wanted == ";") return pass();
-      else return cont(exp);
-    };
-    return exp;
-  }
-
-  function statement(type, value) {
-    if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
-    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
-    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
-    if (type == "{") return cont(pushlex("}"), block, poplex);
-    if (type == ";") return cont();
-    if (type == "if") {
-      if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
-        cx.state.cc.pop()();
-      return cont(pushlex("form"), expression, statement, poplex, maybeelse);
-    }
-    if (type == "function") return cont(functiondef);
-    if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
-    if (type == "variable") return cont(pushlex("stat"), maybelabel);
-    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
-                                      block, poplex, poplex);
-    if (type == "case") return cont(expression, expect(":"));
-    if (type == "default") return cont(expect(":"));
-    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
-                                     statement, poplex, popcontext);
-    if (type == "module") return cont(pushlex("form"), pushcontext, afterModule, popcontext, poplex);
-    if (type == "class") return cont(pushlex("form"), className, poplex);
-    if (type == "export") return cont(pushlex("form"), afterExport, poplex);
-    if (type == "import") return cont(pushlex("form"), afterImport, poplex);
-    return pass(pushlex("stat"), expression, expect(";"), poplex);
-  }
-  function expression(type) {
-    return expressionInner(type, false);
-  }
-  function expressionNoComma(type) {
-    return expressionInner(type, true);
-  }
-  function expressionInner(type, noComma) {
-    if (cx.state.fatArrowAt == cx.stream.start) {
-      var body = noComma ? arrowBodyNoComma : arrowBody;
-      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
-      else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
-    }
-
-    var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
-    if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
-    if (type == "function") return cont(functiondef, maybeop);
-    if (type == "keyword c") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
-    if (type == "(") return cont(pushlex(")"), maybeexpression, comprehension, expect(")"), poplex, maybeop);
-    if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
-    if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
-    if (type == "{") return contCommasep(objprop, "}", null, maybeop);
-    if (type == "quasi") { return pass(quasi, maybeop); }
-    return cont();
-  }
-  function maybeexpression(type) {
-    if (type.match(/[;\}\)\],]/)) return pass();
-    return pass(expression);
-  }
-  function maybeexpressionNoComma(type) {
-    if (type.match(/[;\}\)\],]/)) return pass();
-    return pass(expressionNoComma);
-  }
-
-  function maybeoperatorComma(type, value) {
-    if (type == ",") return cont(expression);
-    return maybeoperatorNoComma(type, value, false);
-  }
-  function maybeoperatorNoComma(type, value, noComma) {
-    var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
-    var expr = noComma == false ? expression : expressionNoComma;
-    if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
-    if (type == "operator") {
-      if (/\+\+|--/.test(value)) return cont(me);
-      if (value == "?") return cont(expression, expect(":"), expr);
-      return cont(expr);
-    }
-    if (type == "quasi") { return pass(quasi, me); }
-    if (type == ";") return;
-    if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
-    if (type == ".") return cont(property, me);
-    if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
-  }
-  function quasi(type, value) {
-    if (type != "quasi") return pass();
-    if (value.slice(value.length - 2) != "${") return cont(quasi);
-    return cont(expression, continueQuasi);
-  }
-  function continueQuasi(type) {
-    if (type == "}") {
-      cx.marked = "string-2";
-      cx.state.tokenize = tokenQuasi;
-      return cont(quasi);
-    }
-  }
-  function arrowBody(type) {
-    findFatArrow(cx.stream, cx.state);
-    return pass(type == "{" ? statement : expression);
-  }
-  function arrowBodyNoComma(type) {
-    findFatArrow(cx.stream, cx.state);
-    return pass(type == "{" ? statement : expressionNoComma);
-  }
-  function maybelabel(type) {
-    if (type == ":") return cont(poplex, statement);
-    return pass(maybeoperatorComma, expect(";"), poplex);
-  }
-  function property(type) {
-    if (type == "variable") {cx.marked = "property"; return cont();}
-  }
-  function objprop(type, value) {
-    if (type == "variable" || cx.style == "keyword") {
-      cx.marked = "property";
-      if (value == "get" || value == "set") return cont(getterSetter);
-      return cont(afterprop);
-    } else if (type == "number" || type == "string") {
-      cx.marked = jsonldMode ? "property" : (cx.style + " property");
-      return cont(afterprop);
-    } else if (type == "jsonld-keyword") {
-      return cont(afterprop);
-    } else if (type == "[") {
-      return cont(expression, expect("]"), afterprop);
-    }
-  }
-  function getterSetter(type) {
-    if (type != "variable") return pass(afterprop);
-    cx.marked = "property";
-    return cont(functiondef);
-  }
-  function afterprop(type) {
-    if (type == ":") return cont(expressionNoComma);
-    if (type == "(") return pass(functiondef);
-  }
-  function commasep(what, end) {
-    function proceed(type) {
-      if (type == ",") {
-        var lex = cx.state.lexical;
-        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
-        return cont(what, proceed);
-      }
-      if (type == end) return cont();
-      return cont(expect(end));
-    }
-    return function(type) {
-      if (type == end) return cont();
-      return pass(what, proceed);
-    };
-  }
-  function contCommasep(what, end, info) {
-    for (var i = 3; i < arguments.length; i++)
-      cx.cc.push(arguments[i]);
-    return cont(pushlex(end, info), commasep(what, end), poplex);
-  }
-  function block(type) {
-    if (type == "}") return cont();
-    return pass(statement, block);
-  }
-  function maybetype(type) {
-    if (isTS && type == ":") return cont(typedef);
-  }
-  function typedef(type) {
-    if (type == "variable"){cx.marked = "variable-3"; return cont();}
-  }
-  function vardef() {
-    return pass(pattern, maybetype, maybeAssign, vardefCont);
-  }
-  function pattern(type, value) {
-    if (type == "variable") { register(value); return cont(); }
-    if (type == "[") return contCommasep(pattern, "]");
-    if (type == "{") return contCommasep(proppattern, "}");
-  }
-  function proppattern(type, value) {
-    if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
-      register(value);
-      return cont(maybeAssign);
-    }
-    if (type == "variable") cx.marked = "property";
-    return cont(expect(":"), pattern, maybeAssign);
-  }
-  function maybeAssign(_type, value) {
-    if (value == "=") return cont(expressionNoComma);
-  }
-  function vardefCont(type) {
-    if (type == ",") return cont(vardef);
-  }
-  function maybeelse(type, value) {
-    if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
-  }
-  function forspec(type) {
-    if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
-  }
-  function forspec1(type) {
-    if (type == "var") return cont(vardef, expect(";"), forspec2);
-    if (type == ";") return cont(forspec2);
-    if (type == "variable") return cont(formaybeinof);
-    return pass(expression, expect(";"), forspec2);
-  }
-  function formaybeinof(_type, value) {
-    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
-    return cont(maybeoperatorComma, forspec2);
-  }
-  function forspec2(type, value) {
-    if (type == ";") return cont(forspec3);
-    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
-    return pass(expression, expect(";"), forspec3);
-  }
-  function forspec3(type) {
-    if (type != ")") cont(expression);
-  }
-  function functiondef(type, value) {
-    if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
-    if (type == "variable") {register(value); return cont(functiondef);}
-    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, statement, popcontext);
-  }
-  function funarg(type) {
-    if (type == "spread") return cont(funarg);
-    return pass(pattern, maybetype);
-  }
-  function className(type, value) {
-    if (type == "variable") {register(value); return cont(classNameAfter);}
-  }
-  function classNameAfter(type, value) {
-    if (value == "extends") return cont(expression, classNameAfter);
-    if (type == "{") return cont(pushlex("}"), classBody, poplex);
-  }
-  function classBody(type, value) {
-    if (type == "variable" || cx.style == "keyword") {
-      if (value == "static") {
-        cx.marked = "keyword";
-        return cont(classBody);
-      }
-      cx.marked = "property";
-      if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody);
-      return cont(functiondef, classBody);
-    }
-    if (value == "*") {
-      cx.marked = "keyword";
-      return cont(classBody);
-    }
-    if (type == ";") return cont(classBody);
-    if (type == "}") return cont();
-  }
-  function classGetterSetter(type) {
-    if (type != "variable") return pass();
-    cx.marked = "property";
-    return cont();
-  }
-  function afterModule(type, value) {
-    if (type == "string") return cont(statement);
-    if (type == "variable") { register(value); return cont(maybeFrom); }
-  }
-  function afterExport(_type, value) {
-    if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
-    if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
-    return pass(statement);
-  }
-  function afterImport(type) {
-    if (type == "string") return cont();
-    return pass(importSpec, maybeFrom);
-  }
-  function importSpec(type, value) {
-    if (type == "{") return contCommasep(importSpec, "}");
-    if (type == "variable") register(value);
-    if (value == "*") cx.marked = "keyword";
-    return cont(maybeAs);
-  }
-  function maybeAs(_type, value) {
-    if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
-  }
-  function maybeFrom(_type, value) {
-    if (value == "from") { cx.marked = "keyword"; return cont(expression); }
-  }
-  function arrayLiteral(type) {
-    if (type == "]") return cont();
-    return pass(expressionNoComma, maybeArrayComprehension);
-  }
-  function maybeArrayComprehension(type) {
-    if (type == "for") return pass(comprehension, expect("]"));
-    if (type == ",") return cont(commasep(maybeexpressionNoComma, "]"));
-    return pass(commasep(expressionNoComma, "]"));
-  }
-  function comprehension(type) {
-    if (type == "for") return cont(forspec, comprehension);
-    if (type == "if") return cont(expression, comprehension);
-  }
-
-  function isContinuedStatement(state, textAfter) {
-    return state.lastType == "operator" || state.lastType == "," ||
-      isOperatorChar.test(textAfter.charAt(0)) ||
-      /[,.]/.test(textAfter.charAt(0));
-  }
-
-  // Interface
-
-  return {
-    startState: function(basecolumn) {
-      var state = {
-        tokenize: tokenBase,
-        lastType: "sof",
-        cc: [],
-        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
-        localVars: parserConfig.localVars,
-        context: parserConfig.localVars && {vars: parserConfig.localVars},
-        indented: 0
-      };
-      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
-        state.globalVars = parserConfig.globalVars;
-      return state;
-    },
-
-    token: function(stream, state) {
-      if (stream.sol()) {
-        if (!state.lexical.hasOwnProperty("align"))
-          state.lexical.align = false;
-        state.indented = stream.indentation();
-        findFatArrow(stream, state);
-      }
-      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
-      var style = state.tokenize(stream, state);
-      if (type == "comment") return style;
-      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
-      return parseJS(state, style, type, content, stream);
-    },
-
-    indent: function(state, textAfter) {
-      if (state.tokenize == tokenComment) return CodeMirror.Pass;
-      if (state.tokenize != tokenBase) return 0;
-      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
-      // Kludge to prevent 'maybelse' from blocking lexical scope pops
-      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
-        var c = state.cc[i];
-        if (c == poplex) lexical = lexical.prev;
-        else if (c != maybeelse) break;
-      }
-      if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
-      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
-        lexical = lexical.prev;
-      var type = lexical.type, closing = firstChar == type;
-
-      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
-      else if (type == "form" && firstChar == "{") return lexical.indented;
-      else if (type == "form") return lexical.indented + indentUnit;
-      else if (type == "stat")
-        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
-      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
-        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
-      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
-      else return lexical.indented + (closing ? 0 : indentUnit);
-    },
-
-    electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
-    blockCommentStart: jsonMode ? null : "/*",
-    blockCommentEnd: jsonMode ? null : "*/",
-    lineComment: jsonMode ? null : "//",
-    fold: "brace",
-    closeBrackets: "()[]{}''\"\"``",
-
-    helperType: jsonMode ? "json" : "javascript",
-    jsonldMode: jsonldMode,
-    jsonMode: jsonMode
-  };
-});
-
-CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
-
-CodeMirror.defineMIME("text/javascript", "javascript");
-CodeMirror.defineMIME("text/ecmascript", "javascript");
-CodeMirror.defineMIME("application/javascript", "javascript");
-CodeMirror.defineMIME("application/x-javascript", "javascript");
-CodeMirror.defineMIME("application/ecmascript", "javascript");
-CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
-CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
-CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
-CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
-CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
-
-});
diff --git a/web/dep/codemirror/matchbrackets.js b/web/dep/codemirror/matchbrackets.js
deleted file mode 100644
index 70e1ae18..00000000
--- a/web/dep/codemirror/matchbrackets.js
+++ /dev/null
@@ -1,120 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    mod(require("../../lib/codemirror"));
-  else if (typeof define == "function" && define.amd) // AMD
-    define(["../../lib/codemirror"], mod);
-  else // Plain browser env
-    mod(CodeMirror);
-})(function(CodeMirror) {
-  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
-    (document.documentMode == null || document.documentMode < 8);
-
-  var Pos = CodeMirror.Pos;
-
-  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
-
-  function findMatchingBracket(cm, where, strict, config) {
-    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
-    var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
-    if (!match) return null;
-    var dir = match.charAt(1) == ">" ? 1 : -1;
-    if (strict && (dir > 0) != (pos == where.ch)) return null;
-    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
-
-    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
-    if (found == null) return null;
-    return {from: Pos(where.line, pos), to: found && found.pos,
-            match: found && found.ch == match.charAt(0), forward: dir > 0};
-  }
-
-  // bracketRegex is used to specify which type of bracket to scan
-  // should be a regexp, e.g. /[[\]]/
-  //
-  // Note: If "where" is on an open bracket, then this bracket is ignored.
-  //
-  // Returns false when no bracket was found, null when it reached
-  // maxScanLines and gave up
-  function scanForBracket(cm, where, dir, style, config) {
-    var maxScanLen = (config && config.maxScanLineLength) || 10000;
-    var maxScanLines = (config && config.maxScanLines) || 1000;
-
-    var stack = [];
-    var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\]]/;
-    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
-                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
-    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
-      var line = cm.getLine(lineNo);
-      if (!line) continue;
-      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
-      if (line.length > maxScanLen) continue;
-      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
-      for (; pos != end; pos += dir) {
-        var ch = line.charAt(pos);
-        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
-          var match = matching[ch];
-          if ((match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
-          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
-          else stack.pop();
-        }
-      }
-    }
-    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
-  }
-
-  function matchBrackets(cm, autoclear, config) {
-    // Disable brace matching in long lines, since it'll cause hugely slow updates
-    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
-    var marks = [], ranges = cm.listSelections();
-    for (var i = 0; i < ranges.length; i++) {
-      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, false, config);
-      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
-        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
-        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
-        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
-          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
-      }
-    }
-
-    if (marks.length) {
-      // Kludge to work around the IE bug from issue #1193, where text
-      // input stops going to the textare whever this fires.
-      if (ie_lt8 && cm.state.focused) cm.focus();
-
-      var clear = function() {
-        cm.operation(function() {
-          for (var i = 0; i < marks.length; i++) marks[i].clear();
-        });
-      };
-      if (autoclear) setTimeout(clear, 800);
-      else return clear;
-    }
-  }
-
-  var currentlyHighlighted = null;
-  function doMatchBrackets(cm) {
-    cm.operation(function() {
-      if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}
-      currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
-    });
-  }
-
-  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
-    if (old && old != CodeMirror.Init)
-      cm.off("cursorActivity", doMatchBrackets);
-    if (val) {
-      cm.state.matchBrackets = typeof val == "object" ? val : {};
-      cm.on("cursorActivity", doMatchBrackets);
-    }
-  });
-
-  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
-  CodeMirror.defineExtension("findMatchingBracket", function(pos, strict, config){
-    return findMatchingBracket(this, pos, strict, config);
-  });
-  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
-    return scanForBracket(this, pos, dir, style, config);
-  });
-});
diff --git a/web/dep/codemirror/xml.js b/web/dep/codemirror/xml.js
deleted file mode 100644
index 2f3b8f87..00000000
--- a/web/dep/codemirror/xml.js
+++ /dev/null
@@ -1,384 +0,0 @@
-// CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
-
-(function(mod) {
-  if (typeof exports == "object" && typeof module == "object") // CommonJS
-    mod(require("../../lib/codemirror"));
-  else if (typeof define == "function" && define.amd) // AMD
-    define(["../../lib/codemirror"], mod);
-  else // Plain browser env
-    mod(CodeMirror);
-})(function(CodeMirror) {
-"use strict";
-
-CodeMirror.defineMode("xml", function(config, parserConfig) {
-  var indentUnit = config.indentUnit;
-  var multilineTagIndentFactor = parserConfig.multilineTagIndentFactor || 1;
-  var multilineTagIndentPastTag = parserConfig.multilineTagIndentPastTag;
-  if (multilineTagIndentPastTag == null) multilineTagIndentPastTag = true;
-
-  var Kludges = parserConfig.htmlMode ? {
-    autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
-                      'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
-                      'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
-                      'track': true, 'wbr': true, 'menuitem': true},
-    implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
-                       'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
-                       'th': true, 'tr': true},
-    contextGrabbers: {
-      'dd': {'dd': true, 'dt': true},
-      'dt': {'dd': true, 'dt': true},
-      'li': {'li': true},
-      'option': {'option': true, 'optgroup': true},
-      'optgroup': {'optgroup': true},
-      'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
-            'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
-            'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
-            'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
-            'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
-      'rp': {'rp': true, 'rt': true},
-      'rt': {'rp': true, 'rt': true},
-      'tbody': {'tbody': true, 'tfoot': true},
-      'td': {'td': true, 'th': true},
-      'tfoot': {'tbody': true},
-      'th': {'td': true, 'th': true},
-      'thead': {'tbody': true, 'tfoot': true},
-      'tr': {'tr': true}
-    },
-    doNotIndent: {"pre": true},
-    allowUnquoted: true,
-    allowMissing: true,
-    caseFold: true
-  } : {
-    autoSelfClosers: {},
-    implicitlyClosed: {},
-    contextGrabbers: {},
-    doNotIndent: {},
-    allowUnquoted: false,
-    allowMissing: false,
-    caseFold: false
-  };
-  var alignCDATA = parserConfig.alignCDATA;
-
-  // Return variables for tokenizers
-  var type, setStyle;
-
-  function inText(stream, state) {
-    function chain(parser) {
-      state.tokenize = parser;
-      return parser(stream, state);
-    }
-
-    var ch = stream.next();
-    if (ch == "<") {
-      if (stream.eat("!")) {
-        if (stream.eat("[")) {
-          if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
-          else return null;
-        } else if (stream.match("--")) {
-          return chain(inBlock("comment", "-->"));
-        } else if (stream.match("DOCTYPE", true, true)) {
-          stream.eatWhile(/[\w\._\-]/);
-          return chain(doctype(1));
-        } else {
-          return null;
-        }
-      } else if (stream.eat("?")) {
-        stream.eatWhile(/[\w\._\-]/);
-        state.tokenize = inBlock("meta", "?>");
-        return "meta";
-      } else {
-        type = stream.eat("/") ? "closeTag" : "openTag";
-        state.tokenize = inTag;
-        return "tag bracket";
-      }
-    } else if (ch == "&") {
-      var ok;
-      if (stream.eat("#")) {
-        if (stream.eat("x")) {
-          ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
-        } else {
-          ok = stream.eatWhile(/[\d]/) && stream.eat(";");
-        }
-      } else {
-        ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
-      }
-      return ok ? "atom" : "error";
-    } else {
-      stream.eatWhile(/[^&<]/);
-      return null;
-    }
-  }
-
-  function inTag(stream, state) {
-    var ch = stream.next();
-    if (ch == ">" || (ch == "/" && stream.eat(">"))) {
-      state.tokenize = inText;
-      type = ch == ">" ? "endTag" : "selfcloseTag";
-      return "tag bracket";
-    } else if (ch == "=") {
-      type = "equals";
-      return null;
-    } else if (ch == "<") {
-      state.tokenize = inText;
-      state.state = baseState;
-      state.tagName = state.tagStart = null;
-      var next = state.tokenize(stream, state);
-      return next ? next + " tag error" : "tag error";
-    } else if (/[\'\"]/.test(ch)) {
-      state.tokenize = inAttribute(ch);
-      state.stringStartCol = stream.column();
-      return state.tokenize(stream, state);
-    } else {
-      stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
-      return "word";
-    }
-  }
-
-  function inAttribute(quote) {
-    var closure = function(stream, state) {
-      while (!stream.eol()) {
-        if (stream.next() == quote) {
-          state.tokenize = inTag;
-          break;
-        }
-      }
-      return "string";
-    };
-    closure.isInAttribute = true;
-    return closure;
-  }
-
-  function inBlock(style, terminator) {
-    return function(stream, state) {
-      while (!stream.eol()) {
-        if (stream.match(terminator)) {
-          state.tokenize = inText;
-          break;
-        }
-        stream.next();
-      }
-      return style;
-    };
-  }
-  function doctype(depth) {
-    return function(stream, state) {
-      var ch;
-      while ((ch = stream.next()) != null) {
-        if (ch == "<") {
-          state.tokenize = doctype(depth + 1);
-          return state.tokenize(stream, state);
-        } else if (ch == ">") {
-          if (depth == 1) {
-            state.tokenize = inText;
-            break;
-          } else {
-            state.tokenize = doctype(depth - 1);
-            return state.tokenize(stream, state);
-          }
-        }
-      }
-      return "meta";
-    };
-  }
-
-  function Context(state, tagName, startOfLine) {
-    this.prev = state.context;
-    this.tagName = tagName;
-    this.indent = state.indented;
-    this.startOfLine = startOfLine;
-    if (Kludges.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
-      this.noIndent = true;
-  }
-  function popContext(state) {
-    if (state.context) state.context = state.context.prev;
-  }
-  function maybePopContext(state, nextTagName) {
-    var parentTagName;
-    while (true) {
-      if (!state.context) {
-        return;
-      }
-      parentTagName = state.context.tagName;
-      if (!Kludges.contextGrabbers.hasOwnProperty(parentTagName) ||
-          !Kludges.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
-        return;
-      }
-      popContext(state);
-    }
-  }
-
-  function baseState(type, stream, state) {
-    if (type == "openTag") {
-      state.tagStart = stream.column();
-      return tagNameState;
-    } else if (type == "closeTag") {
-      return closeTagNameState;
-    } else {
-      return baseState;
-    }
-  }
-  function tagNameState(type, stream, state) {
-    if (type == "word") {
-      state.tagName = stream.current();
-      setStyle = "tag";
-      return attrState;
-    } else {
-      setStyle = "error";
-      return tagNameState;
-    }
-  }
-  function closeTagNameState(type, stream, state) {
-    if (type == "word") {
-      var tagName = stream.current();
-      if (state.context && state.context.tagName != tagName &&
-          Kludges.implicitlyClosed.hasOwnProperty(state.context.tagName))
-        popContext(state);
-      if (state.context && state.context.tagName == tagName) {
-        setStyle = "tag";
-        return closeState;
-      } else {
-        setStyle = "tag error";
-        return closeStateErr;
-      }
-    } else {
-      setStyle = "error";
-      return closeStateErr;
-    }
-  }
-
-  function closeState(type, _stream, state) {
-    if (type != "endTag") {
-      setStyle = "error";
-      return closeState;
-    }
-    popContext(state);
-    return baseState;
-  }
-  function closeStateErr(type, stream, state) {
-    setStyle = "error";
-    return closeState(type, stream, state);
-  }
-
-  function attrState(type, _stream, state) {
-    if (type == "word") {
-      setStyle = "attribute";
-      return attrEqState;
-    } else if (type == "endTag" || type == "selfcloseTag") {
-      var tagName = state.tagName, tagStart = state.tagStart;
-      state.tagName = state.tagStart = null;
-      if (type == "selfcloseTag" ||
-          Kludges.autoSelfClosers.hasOwnProperty(tagName)) {
-        maybePopContext(state, tagName);
-      } else {
-        maybePopContext(state, tagName);
-        state.context = new Context(state, tagName, tagStart == state.indented);
-      }
-      return baseState;
-    }
-    setStyle = "error";
-    return attrState;
-  }
-  function attrEqState(type, stream, state) {
-    if (type == "equals") return attrValueState;
-    if (!Kludges.allowMissing) setStyle = "error";
-    return attrState(type, stream, state);
-  }
-  function attrValueState(type, stream, state) {
-    if (type == "string") return attrContinuedState;
-    if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return attrState;}
-    setStyle = "error";
-    return attrState(type, stream, state);
-  }
-  function attrContinuedState(type, stream, state) {
-    if (type == "string") return attrContinuedState;
-    return attrState(type, stream, state);
-  }
-
-  return {
-    startState: function() {
-      return {tokenize: inText,
-              state: baseState,
-              indented: 0,
-              tagName: null, tagStart: null,
-              context: null};
-    },
-
-    token: function(stream, state) {
-      if (!state.tagName && stream.sol())
-        state.indented = stream.indentation();
-
-      if (stream.eatSpace()) return null;
-      type = null;
-      var style = state.tokenize(stream, state);
-      if ((style || type) && style != "comment") {
-        setStyle = null;
-        state.state = state.state(type || style, stream, state);
-        if (setStyle)
-          style = setStyle == "error" ? style + " error" : setStyle;
-      }
-      return style;
-    },
-
-    indent: function(state, textAfter, fullLine) {
-      var context = state.context;
-      // Indent multi-line strings (e.g. css).
-      if (state.tokenize.isInAttribute) {
-        if (state.tagStart == state.indented)
-          return state.stringStartCol + 1;
-        else
-          return state.indented + indentUnit;
-      }
-      if (context && context.noIndent) return CodeMirror.Pass;
-      if (state.tokenize != inTag && state.tokenize != inText)
-        return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
-      // Indent the starts of attribute names.
-      if (state.tagName) {
-        if (multilineTagIndentPastTag)
-          return state.tagStart + state.tagName.length + 2;
-        else
-          return state.tagStart + indentUnit * multilineTagIndentFactor;
-      }
-      if (alignCDATA && /$/,
-    blockCommentStart: "",
-
-    configuration: parserConfig.htmlMode ? "html" : "xml",
-    helperType: parserConfig.htmlMode ? "html" : "xml"
-  };
-});
-
-CodeMirror.defineMIME("text/xml", "xml");
-CodeMirror.defineMIME("application/xml", "xml");
-if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
-  CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
-
-});
diff --git a/web/dep/jquery.js b/web/dep/jquery.js
deleted file mode 100644
index fdd413a6..00000000
--- a/web/dep/jquery.js
+++ /dev/null
@@ -1,5 +0,0 @@
-/*! jQuery v1.11.3 | (c) 2005, 2015 jQuery Foundation, Inc. | jquery.org/license */
-!function(a,b){"object"==typeof module&&"object"==typeof module.exports?module.exports=a.document?b(a,!0):function(a){if(!a.document)throw new Error("jQuery requires a window with a document");return b(a)}:b(a)}("undefined"!=typeof window?window:this,function(a,b){var c=[],d=c.slice,e=c.concat,f=c.push,g=c.indexOf,h={},i=h.toString,j=h.hasOwnProperty,k={},l="1.11.3",m=function(a,b){return new m.fn.init(a,b)},n=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,o=/^-ms-/,p=/-([\da-z])/gi,q=function(a,b){return b.toUpperCase()};m.fn=m.prototype={jquery:l,constructor:m,selector:"",length:0,toArray:function(){return d.call(this)},get:function(a){return null!=a?0>a?this[a+this.length]:this[a]:d.call(this)},pushStack:function(a){var b=m.merge(this.constructor(),a);return b.prevObject=this,b.context=this.context,b},each:function(a,b){return m.each(this,a,b)},map:function(a){return this.pushStack(m.map(this,function(b,c){return a.call(b,c,b)}))},slice:function(){return this.pushStack(d.apply(this,arguments))},first:function(){return this.eq(0)},last:function(){return this.eq(-1)},eq:function(a){var b=this.length,c=+a+(0>a?b:0);return this.pushStack(c>=0&&b>c?[this[c]]:[])},end:function(){return this.prevObject||this.constructor(null)},push:f,sort:c.sort,splice:c.splice},m.extend=m.fn.extend=function(){var a,b,c,d,e,f,g=arguments[0]||{},h=1,i=arguments.length,j=!1;for("boolean"==typeof g&&(j=g,g=arguments[h]||{},h++),"object"==typeof g||m.isFunction(g)||(g={}),h===i&&(g=this,h--);i>h;h++)if(null!=(e=arguments[h]))for(d in e)a=g[d],c=e[d],g!==c&&(j&&c&&(m.isPlainObject(c)||(b=m.isArray(c)))?(b?(b=!1,f=a&&m.isArray(a)?a:[]):f=a&&m.isPlainObject(a)?a:{},g[d]=m.extend(j,f,c)):void 0!==c&&(g[d]=c));return g},m.extend({expando:"jQuery"+(l+Math.random()).replace(/\D/g,""),isReady:!0,error:function(a){throw new Error(a)},noop:function(){},isFunction:function(a){return"function"===m.type(a)},isArray:Array.isArray||function(a){return"array"===m.type(a)},isWindow:function(a){return null!=a&&a==a.window},isNumeric:function(a){return!m.isArray(a)&&a-parseFloat(a)+1>=0},isEmptyObject:function(a){var b;for(b in a)return!1;return!0},isPlainObject:function(a){var b;if(!a||"object"!==m.type(a)||a.nodeType||m.isWindow(a))return!1;try{if(a.constructor&&!j.call(a,"constructor")&&!j.call(a.constructor.prototype,"isPrototypeOf"))return!1}catch(c){return!1}if(k.ownLast)for(b in a)return j.call(a,b);for(b in a);return void 0===b||j.call(a,b)},type:function(a){return null==a?a+"":"object"==typeof a||"function"==typeof a?h[i.call(a)]||"object":typeof a},globalEval:function(b){b&&m.trim(b)&&(a.execScript||function(b){a.eval.call(a,b)})(b)},camelCase:function(a){return a.replace(o,"ms-").replace(p,q)},nodeName:function(a,b){return a.nodeName&&a.nodeName.toLowerCase()===b.toLowerCase()},each:function(a,b,c){var d,e=0,f=a.length,g=r(a);if(c){if(g){for(;f>e;e++)if(d=b.apply(a[e],c),d===!1)break}else for(e in a)if(d=b.apply(a[e],c),d===!1)break}else if(g){for(;f>e;e++)if(d=b.call(a[e],e,a[e]),d===!1)break}else for(e in a)if(d=b.call(a[e],e,a[e]),d===!1)break;return a},trim:function(a){return null==a?"":(a+"").replace(n,"")},makeArray:function(a,b){var c=b||[];return null!=a&&(r(Object(a))?m.merge(c,"string"==typeof a?[a]:a):f.call(c,a)),c},inArray:function(a,b,c){var d;if(b){if(g)return g.call(b,a,c);for(d=b.length,c=c?0>c?Math.max(0,d+c):c:0;d>c;c++)if(c in b&&b[c]===a)return c}return-1},merge:function(a,b){var c=+b.length,d=0,e=a.length;while(c>d)a[e++]=b[d++];if(c!==c)while(void 0!==b[d])a[e++]=b[d++];return a.length=e,a},grep:function(a,b,c){for(var d,e=[],f=0,g=a.length,h=!c;g>f;f++)d=!b(a[f],f),d!==h&&e.push(a[f]);return e},map:function(a,b,c){var d,f=0,g=a.length,h=r(a),i=[];if(h)for(;g>f;f++)d=b(a[f],f,c),null!=d&&i.push(d);else for(f in a)d=b(a[f],f,c),null!=d&&i.push(d);return e.apply([],i)},guid:1,proxy:function(a,b){var c,e,f;return"string"==typeof b&&(f=a[b],b=a,a=f),m.isFunction(a)?(c=d.call(arguments,2),e=function(){return a.apply(b||this,c.concat(d.call(arguments)))},e.guid=a.guid=a.guid||m.guid++,e):void 0},now:function(){return+new Date},support:k}),m.each("Boolean Number String Function Array Date RegExp Object Error".split(" "),function(a,b){h["[object "+b+"]"]=b.toLowerCase()});function r(a){var b="length"in a&&a.length,c=m.type(a);return"function"===c||m.isWindow(a)?!1:1===a.nodeType&&b?!0:"array"===c||0===b||"number"==typeof b&&b>0&&b-1 in a}var s=function(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u="sizzle"+1*new Date,v=a.document,w=0,x=0,y=ha(),z=ha(),A=ha(),B=function(a,b){return a===b&&(l=!0),0},C=1<<31,D={}.hasOwnProperty,E=[],F=E.pop,G=E.push,H=E.push,I=E.slice,J=function(a,b){for(var c=0,d=a.length;d>c;c++)if(a[c]===b)return c;return-1},K="checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",L="[\\x20\\t\\r\\n\\f]",M="(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",N=M.replace("w","w#"),O="\\["+L+"*("+M+")(?:"+L+"*([*^$|!~]?=)"+L+"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|("+N+"))|)"+L+"*\\]",P=":("+M+")(?:\\((('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|((?:\\\\.|[^\\\\()[\\]]|"+O+")*)|.*)\\)|)",Q=new RegExp(L+"+","g"),R=new RegExp("^"+L+"+|((?:^|[^\\\\])(?:\\\\.)*)"+L+"+$","g"),S=new RegExp("^"+L+"*,"+L+"*"),T=new RegExp("^"+L+"*([>+~]|"+L+")"+L+"*"),U=new RegExp("="+L+"*([^\\]'\"]*?)"+L+"*\\]","g"),V=new RegExp(P),W=new RegExp("^"+N+"$"),X={ID:new RegExp("^#("+M+")"),CLASS:new RegExp("^\\.("+M+")"),TAG:new RegExp("^("+M.replace("w","w*")+")"),ATTR:new RegExp("^"+O),PSEUDO:new RegExp("^"+P),CHILD:new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\("+L+"*(even|odd|(([+-]|)(\\d*)n|)"+L+"*(?:([+-]|)"+L+"*(\\d+)|))"+L+"*\\)|)","i"),bool:new RegExp("^(?:"+K+")$","i"),needsContext:new RegExp("^"+L+"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\("+L+"*((?:-\\d)?\\d*)"+L+"*\\)|)(?=[^-]|$)","i")},Y=/^(?:input|select|textarea|button)$/i,Z=/^h\d$/i,$=/^[^{]+\{\s*\[native \w/,_=/^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,aa=/[+~]/,ba=/'|\\/g,ca=new RegExp("\\\\([\\da-f]{1,6}"+L+"?|("+L+")|.)","ig"),da=function(a,b,c){var d="0x"+b-65536;return d!==d||c?b:0>d?String.fromCharCode(d+65536):String.fromCharCode(d>>10|55296,1023&d|56320)},ea=function(){m()};try{H.apply(E=I.call(v.childNodes),v.childNodes),E[v.childNodes.length].nodeType}catch(fa){H={apply:E.length?function(a,b){G.apply(a,I.call(b))}:function(a,b){var c=a.length,d=0;while(a[c++]=b[d++]);a.length=c-1}}}function ga(a,b,d,e){var f,h,j,k,l,o,r,s,w,x;if((b?b.ownerDocument||b:v)!==n&&m(b),b=b||n,d=d||[],k=b.nodeType,"string"!=typeof a||!a||1!==k&&9!==k&&11!==k)return d;if(!e&&p){if(11!==k&&(f=_.exec(a)))if(j=f[1]){if(9===k){if(h=b.getElementById(j),!h||!h.parentNode)return d;if(h.id===j)return d.push(h),d}else if(b.ownerDocument&&(h=b.ownerDocument.getElementById(j))&&t(b,h)&&h.id===j)return d.push(h),d}else{if(f[2])return H.apply(d,b.getElementsByTagName(a)),d;if((j=f[3])&&c.getElementsByClassName)return H.apply(d,b.getElementsByClassName(j)),d}if(c.qsa&&(!q||!q.test(a))){if(s=r=u,w=b,x=1!==k&&a,1===k&&"object"!==b.nodeName.toLowerCase()){o=g(a),(r=b.getAttribute("id"))?s=r.replace(ba,"\\$&"):b.setAttribute("id",s),s="[id='"+s+"'] ",l=o.length;while(l--)o[l]=s+ra(o[l]);w=aa.test(a)&&pa(b.parentNode)||b,x=o.join(",")}if(x)try{return H.apply(d,w.querySelectorAll(x)),d}catch(y){}finally{r||b.removeAttribute("id")}}}return i(a.replace(R,"$1"),b,d,e)}function ha(){var a=[];function b(c,e){return a.push(c+" ")>d.cacheLength&&delete b[a.shift()],b[c+" "]=e}return b}function ia(a){return a[u]=!0,a}function ja(a){var b=n.createElement("div");try{return!!a(b)}catch(c){return!1}finally{b.parentNode&&b.parentNode.removeChild(b),b=null}}function ka(a,b){var c=a.split("|"),e=a.length;while(e--)d.attrHandle[c[e]]=b}function la(a,b){var c=b&&a,d=c&&1===a.nodeType&&1===b.nodeType&&(~b.sourceIndex||C)-(~a.sourceIndex||C);if(d)return d;if(c)while(c=c.nextSibling)if(c===b)return-1;return a?1:-1}function ma(a){return function(b){var c=b.nodeName.toLowerCase();return"input"===c&&b.type===a}}function na(a){return function(b){var c=b.nodeName.toLowerCase();return("input"===c||"button"===c)&&b.type===a}}function oa(a){return ia(function(b){return b=+b,ia(function(c,d){var e,f=a([],c.length,b),g=f.length;while(g--)c[e=f[g]]&&(c[e]=!(d[e]=c[e]))})})}function pa(a){return a&&"undefined"!=typeof a.getElementsByTagName&&a}c=ga.support={},f=ga.isXML=function(a){var b=a&&(a.ownerDocument||a).documentElement;return b?"HTML"!==b.nodeName:!1},m=ga.setDocument=function(a){var b,e,g=a?a.ownerDocument||a:v;return g!==n&&9===g.nodeType&&g.documentElement?(n=g,o=g.documentElement,e=g.defaultView,e&&e!==e.top&&(e.addEventListener?e.addEventListener("unload",ea,!1):e.attachEvent&&e.attachEvent("onunload",ea)),p=!f(g),c.attributes=ja(function(a){return a.className="i",!a.getAttribute("className")}),c.getElementsByTagName=ja(function(a){return a.appendChild(g.createComment("")),!a.getElementsByTagName("*").length}),c.getElementsByClassName=$.test(g.getElementsByClassName),c.getById=ja(function(a){return o.appendChild(a).id=u,!g.getElementsByName||!g.getElementsByName(u).length}),c.getById?(d.find.ID=function(a,b){if("undefined"!=typeof b.getElementById&&p){var c=b.getElementById(a);return c&&c.parentNode?[c]:[]}},d.filter.ID=function(a){var b=a.replace(ca,da);return function(a){return a.getAttribute("id")===b}}):(delete d.find.ID,d.filter.ID=function(a){var b=a.replace(ca,da);return function(a){var c="undefined"!=typeof a.getAttributeNode&&a.getAttributeNode("id");return c&&c.value===b}}),d.find.TAG=c.getElementsByTagName?function(a,b){return"undefined"!=typeof b.getElementsByTagName?b.getElementsByTagName(a):c.qsa?b.querySelectorAll(a):void 0}:function(a,b){var c,d=[],e=0,f=b.getElementsByTagName(a);if("*"===a){while(c=f[e++])1===c.nodeType&&d.push(c);return d}return f},d.find.CLASS=c.getElementsByClassName&&function(a,b){return p?b.getElementsByClassName(a):void 0},r=[],q=[],(c.qsa=$.test(g.querySelectorAll))&&(ja(function(a){o.appendChild(a).innerHTML="",a.querySelectorAll("[msallowcapture^='']").length&&q.push("[*^$]="+L+"*(?:''|\"\")"),a.querySelectorAll("[selected]").length||q.push("\\["+L+"*(?:value|"+K+")"),a.querySelectorAll("[id~="+u+"-]").length||q.push("~="),a.querySelectorAll(":checked").length||q.push(":checked"),a.querySelectorAll("a#"+u+"+*").length||q.push(".#.+[+~]")}),ja(function(a){var b=g.createElement("input");b.setAttribute("type","hidden"),a.appendChild(b).setAttribute("name","D"),a.querySelectorAll("[name=d]").length&&q.push("name"+L+"*[*^$|!~]?="),a.querySelectorAll(":enabled").length||q.push(":enabled",":disabled"),a.querySelectorAll("*,:x"),q.push(",.*:")})),(c.matchesSelector=$.test(s=o.matches||o.webkitMatchesSelector||o.mozMatchesSelector||o.oMatchesSelector||o.msMatchesSelector))&&ja(function(a){c.disconnectedMatch=s.call(a,"div"),s.call(a,"[s!='']:x"),r.push("!=",P)}),q=q.length&&new RegExp(q.join("|")),r=r.length&&new RegExp(r.join("|")),b=$.test(o.compareDocumentPosition),t=b||$.test(o.contains)?function(a,b){var c=9===a.nodeType?a.documentElement:a,d=b&&b.parentNode;return a===d||!(!d||1!==d.nodeType||!(c.contains?c.contains(d):a.compareDocumentPosition&&16&a.compareDocumentPosition(d)))}:function(a,b){if(b)while(b=b.parentNode)if(b===a)return!0;return!1},B=b?function(a,b){if(a===b)return l=!0,0;var d=!a.compareDocumentPosition-!b.compareDocumentPosition;return d?d:(d=(a.ownerDocument||a)===(b.ownerDocument||b)?a.compareDocumentPosition(b):1,1&d||!c.sortDetached&&b.compareDocumentPosition(a)===d?a===g||a.ownerDocument===v&&t(v,a)?-1:b===g||b.ownerDocument===v&&t(v,b)?1:k?J(k,a)-J(k,b):0:4&d?-1:1)}:function(a,b){if(a===b)return l=!0,0;var c,d=0,e=a.parentNode,f=b.parentNode,h=[a],i=[b];if(!e||!f)return a===g?-1:b===g?1:e?-1:f?1:k?J(k,a)-J(k,b):0;if(e===f)return la(a,b);c=a;while(c=c.parentNode)h.unshift(c);c=b;while(c=c.parentNode)i.unshift(c);while(h[d]===i[d])d++;return d?la(h[d],i[d]):h[d]===v?-1:i[d]===v?1:0},g):n},ga.matches=function(a,b){return ga(a,null,null,b)},ga.matchesSelector=function(a,b){if((a.ownerDocument||a)!==n&&m(a),b=b.replace(U,"='$1']"),!(!c.matchesSelector||!p||r&&r.test(b)||q&&q.test(b)))try{var d=s.call(a,b);if(d||c.disconnectedMatch||a.document&&11!==a.document.nodeType)return d}catch(e){}return ga(b,n,null,[a]).length>0},ga.contains=function(a,b){return(a.ownerDocument||a)!==n&&m(a),t(a,b)},ga.attr=function(a,b){(a.ownerDocument||a)!==n&&m(a);var e=d.attrHandle[b.toLowerCase()],f=e&&D.call(d.attrHandle,b.toLowerCase())?e(a,b,!p):void 0;return void 0!==f?f:c.attributes||!p?a.getAttribute(b):(f=a.getAttributeNode(b))&&f.specified?f.value:null},ga.error=function(a){throw new Error("Syntax error, unrecognized expression: "+a)},ga.uniqueSort=function(a){var b,d=[],e=0,f=0;if(l=!c.detectDuplicates,k=!c.sortStable&&a.slice(0),a.sort(B),l){while(b=a[f++])b===a[f]&&(e=d.push(f));while(e--)a.splice(d[e],1)}return k=null,a},e=ga.getText=function(a){var b,c="",d=0,f=a.nodeType;if(f){if(1===f||9===f||11===f){if("string"==typeof a.textContent)return a.textContent;for(a=a.firstChild;a;a=a.nextSibling)c+=e(a)}else if(3===f||4===f)return a.nodeValue}else while(b=a[d++])c+=e(b);return c},d=ga.selectors={cacheLength:50,createPseudo:ia,match:X,attrHandle:{},find:{},relative:{">":{dir:"parentNode",first:!0}," ":{dir:"parentNode"},"+":{dir:"previousSibling",first:!0},"~":{dir:"previousSibling"}},preFilter:{ATTR:function(a){return a[1]=a[1].replace(ca,da),a[3]=(a[3]||a[4]||a[5]||"").replace(ca,da),"~="===a[2]&&(a[3]=" "+a[3]+" "),a.slice(0,4)},CHILD:function(a){return a[1]=a[1].toLowerCase(),"nth"===a[1].slice(0,3)?(a[3]||ga.error(a[0]),a[4]=+(a[4]?a[5]+(a[6]||1):2*("even"===a[3]||"odd"===a[3])),a[5]=+(a[7]+a[8]||"odd"===a[3])):a[3]&&ga.error(a[0]),a},PSEUDO:function(a){var b,c=!a[6]&&a[2];return X.CHILD.test(a[0])?null:(a[3]?a[2]=a[4]||a[5]||"":c&&V.test(c)&&(b=g(c,!0))&&(b=c.indexOf(")",c.length-b)-c.length)&&(a[0]=a[0].slice(0,b),a[2]=c.slice(0,b)),a.slice(0,3))}},filter:{TAG:function(a){var b=a.replace(ca,da).toLowerCase();return"*"===a?function(){return!0}:function(a){return a.nodeName&&a.nodeName.toLowerCase()===b}},CLASS:function(a){var b=y[a+" "];return b||(b=new RegExp("(^|"+L+")"+a+"("+L+"|$)"))&&y(a,function(a){return b.test("string"==typeof a.className&&a.className||"undefined"!=typeof a.getAttribute&&a.getAttribute("class")||"")})},ATTR:function(a,b,c){return function(d){var e=ga.attr(d,a);return null==e?"!="===b:b?(e+="","="===b?e===c:"!="===b?e!==c:"^="===b?c&&0===e.indexOf(c):"*="===b?c&&e.indexOf(c)>-1:"$="===b?c&&e.slice(-c.length)===c:"~="===b?(" "+e.replace(Q," ")+" ").indexOf(c)>-1:"|="===b?e===c||e.slice(0,c.length+1)===c+"-":!1):!0}},CHILD:function(a,b,c,d,e){var f="nth"!==a.slice(0,3),g="last"!==a.slice(-4),h="of-type"===b;return 1===d&&0===e?function(a){return!!a.parentNode}:function(b,c,i){var j,k,l,m,n,o,p=f!==g?"nextSibling":"previousSibling",q=b.parentNode,r=h&&b.nodeName.toLowerCase(),s=!i&&!h;if(q){if(f){while(p){l=b;while(l=l[p])if(h?l.nodeName.toLowerCase()===r:1===l.nodeType)return!1;o=p="only"===a&&!o&&"nextSibling"}return!0}if(o=[g?q.firstChild:q.lastChild],g&&s){k=q[u]||(q[u]={}),j=k[a]||[],n=j[0]===w&&j[1],m=j[0]===w&&j[2],l=n&&q.childNodes[n];while(l=++n&&l&&l[p]||(m=n=0)||o.pop())if(1===l.nodeType&&++m&&l===b){k[a]=[w,n,m];break}}else if(s&&(j=(b[u]||(b[u]={}))[a])&&j[0]===w)m=j[1];else while(l=++n&&l&&l[p]||(m=n=0)||o.pop())if((h?l.nodeName.toLowerCase()===r:1===l.nodeType)&&++m&&(s&&((l[u]||(l[u]={}))[a]=[w,m]),l===b))break;return m-=e,m===d||m%d===0&&m/d>=0}}},PSEUDO:function(a,b){var c,e=d.pseudos[a]||d.setFilters[a.toLowerCase()]||ga.error("unsupported pseudo: "+a);return e[u]?e(b):e.length>1?(c=[a,a,"",b],d.setFilters.hasOwnProperty(a.toLowerCase())?ia(function(a,c){var d,f=e(a,b),g=f.length;while(g--)d=J(a,f[g]),a[d]=!(c[d]=f[g])}):function(a){return e(a,0,c)}):e}},pseudos:{not:ia(function(a){var b=[],c=[],d=h(a.replace(R,"$1"));return d[u]?ia(function(a,b,c,e){var f,g=d(a,null,e,[]),h=a.length;while(h--)(f=g[h])&&(a[h]=!(b[h]=f))}):function(a,e,f){return b[0]=a,d(b,null,f,c),b[0]=null,!c.pop()}}),has:ia(function(a){return function(b){return ga(a,b).length>0}}),contains:ia(function(a){return a=a.replace(ca,da),function(b){return(b.textContent||b.innerText||e(b)).indexOf(a)>-1}}),lang:ia(function(a){return W.test(a||"")||ga.error("unsupported lang: "+a),a=a.replace(ca,da).toLowerCase(),function(b){var c;do if(c=p?b.lang:b.getAttribute("xml:lang")||b.getAttribute("lang"))return c=c.toLowerCase(),c===a||0===c.indexOf(a+"-");while((b=b.parentNode)&&1===b.nodeType);return!1}}),target:function(b){var c=a.location&&a.location.hash;return c&&c.slice(1)===b.id},root:function(a){return a===o},focus:function(a){return a===n.activeElement&&(!n.hasFocus||n.hasFocus())&&!!(a.type||a.href||~a.tabIndex)},enabled:function(a){return a.disabled===!1},disabled:function(a){return a.disabled===!0},checked:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&!!a.checked||"option"===b&&!!a.selected},selected:function(a){return a.parentNode&&a.parentNode.selectedIndex,a.selected===!0},empty:function(a){for(a=a.firstChild;a;a=a.nextSibling)if(a.nodeType<6)return!1;return!0},parent:function(a){return!d.pseudos.empty(a)},header:function(a){return Z.test(a.nodeName)},input:function(a){return Y.test(a.nodeName)},button:function(a){var b=a.nodeName.toLowerCase();return"input"===b&&"button"===a.type||"button"===b},text:function(a){var b;return"input"===a.nodeName.toLowerCase()&&"text"===a.type&&(null==(b=a.getAttribute("type"))||"text"===b.toLowerCase())},first:oa(function(){return[0]}),last:oa(function(a,b){return[b-1]}),eq:oa(function(a,b,c){return[0>c?c+b:c]}),even:oa(function(a,b){for(var c=0;b>c;c+=2)a.push(c);return a}),odd:oa(function(a,b){for(var c=1;b>c;c+=2)a.push(c);return a}),lt:oa(function(a,b,c){for(var d=0>c?c+b:c;--d>=0;)a.push(d);return a}),gt:oa(function(a,b,c){for(var d=0>c?c+b:c;++db;b++)d+=a[b].value;return d}function sa(a,b,c){var d=b.dir,e=c&&"parentNode"===d,f=x++;return b.first?function(b,c,f){while(b=b[d])if(1===b.nodeType||e)return a(b,c,f)}:function(b,c,g){var h,i,j=[w,f];if(g){while(b=b[d])if((1===b.nodeType||e)&&a(b,c,g))return!0}else while(b=b[d])if(1===b.nodeType||e){if(i=b[u]||(b[u]={}),(h=i[d])&&h[0]===w&&h[1]===f)return j[2]=h[2];if(i[d]=j,j[2]=a(b,c,g))return!0}}}function ta(a){return a.length>1?function(b,c,d){var e=a.length;while(e--)if(!a[e](b,c,d))return!1;return!0}:a[0]}function ua(a,b,c){for(var d=0,e=b.length;e>d;d++)ga(a,b[d],c);return c}function va(a,b,c,d,e){for(var f,g=[],h=0,i=a.length,j=null!=b;i>h;h++)(f=a[h])&&(!c||c(f,d,e))&&(g.push(f),j&&b.push(h));return g}function wa(a,b,c,d,e,f){return d&&!d[u]&&(d=wa(d)),e&&!e[u]&&(e=wa(e,f)),ia(function(f,g,h,i){var j,k,l,m=[],n=[],o=g.length,p=f||ua(b||"*",h.nodeType?[h]:h,[]),q=!a||!f&&b?p:va(p,m,a,h,i),r=c?e||(f?a:o||d)?[]:g:q;if(c&&c(q,r,h,i),d){j=va(r,n),d(j,[],h,i),k=j.length;while(k--)(l=j[k])&&(r[n[k]]=!(q[n[k]]=l))}if(f){if(e||a){if(e){j=[],k=r.length;while(k--)(l=r[k])&&j.push(q[k]=l);e(null,r=[],j,i)}k=r.length;while(k--)(l=r[k])&&(j=e?J(f,l):m[k])>-1&&(f[j]=!(g[j]=l))}}else r=va(r===g?r.splice(o,r.length):r),e?e(null,g,r,i):H.apply(g,r)})}function xa(a){for(var b,c,e,f=a.length,g=d.relative[a[0].type],h=g||d.relative[" "],i=g?1:0,k=sa(function(a){return a===b},h,!0),l=sa(function(a){return J(b,a)>-1},h,!0),m=[function(a,c,d){var e=!g&&(d||c!==j)||((b=c).nodeType?k(a,c,d):l(a,c,d));return b=null,e}];f>i;i++)if(c=d.relative[a[i].type])m=[sa(ta(m),c)];else{if(c=d.filter[a[i].type].apply(null,a[i].matches),c[u]){for(e=++i;f>e;e++)if(d.relative[a[e].type])break;return wa(i>1&&ta(m),i>1&&ra(a.slice(0,i-1).concat({value:" "===a[i-2].type?"*":""})).replace(R,"$1"),c,e>i&&xa(a.slice(i,e)),f>e&&xa(a=a.slice(e)),f>e&&ra(a))}m.push(c)}return ta(m)}function ya(a,b){var c=b.length>0,e=a.length>0,f=function(f,g,h,i,k){var l,m,o,p=0,q="0",r=f&&[],s=[],t=j,u=f||e&&d.find.TAG("*",k),v=w+=null==t?1:Math.random()||.1,x=u.length;for(k&&(j=g!==n&&g);q!==x&&null!=(l=u[q]);q++){if(e&&l){m=0;while(o=a[m++])if(o(l,g,h)){i.push(l);break}k&&(w=v)}c&&((l=!o&&l)&&p--,f&&r.push(l))}if(p+=q,c&&q!==p){m=0;while(o=b[m++])o(r,s,g,h);if(f){if(p>0)while(q--)r[q]||s[q]||(s[q]=F.call(i));s=va(s)}H.apply(i,s),k&&!f&&s.length>0&&p+b.length>1&&ga.uniqueSort(i)}return k&&(w=v,j=t),r};return c?ia(f):f}return h=ga.compile=function(a,b){var c,d=[],e=[],f=A[a+" "];if(!f){b||(b=g(a)),c=b.length;while(c--)f=xa(b[c]),f[u]?d.push(f):e.push(f);f=A(a,ya(e,d)),f.selector=a}return f},i=ga.select=function(a,b,e,f){var i,j,k,l,m,n="function"==typeof a&&a,o=!f&&g(a=n.selector||a);if(e=e||[],1===o.length){if(j=o[0]=o[0].slice(0),j.length>2&&"ID"===(k=j[0]).type&&c.getById&&9===b.nodeType&&p&&d.relative[j[1].type]){if(b=(d.find.ID(k.matches[0].replace(ca,da),b)||[])[0],!b)return e;n&&(b=b.parentNode),a=a.slice(j.shift().value.length)}i=X.needsContext.test(a)?0:j.length;while(i--){if(k=j[i],d.relative[l=k.type])break;if((m=d.find[l])&&(f=m(k.matches[0].replace(ca,da),aa.test(j[0].type)&&pa(b.parentNode)||b))){if(j.splice(i,1),a=f.length&&ra(j),!a)return H.apply(e,f),e;break}}}return(n||h(a,o))(f,b,!p,e,aa.test(a)&&pa(b.parentNode)||b),e},c.sortStable=u.split("").sort(B).join("")===u,c.detectDuplicates=!!l,m(),c.sortDetached=ja(function(a){return 1&a.compareDocumentPosition(n.createElement("div"))}),ja(function(a){return a.innerHTML="","#"===a.firstChild.getAttribute("href")})||ka("type|href|height|width",function(a,b,c){return c?void 0:a.getAttribute(b,"type"===b.toLowerCase()?1:2)}),c.attributes&&ja(function(a){return a.innerHTML="",a.firstChild.setAttribute("value",""),""===a.firstChild.getAttribute("value")})||ka("value",function(a,b,c){return c||"input"!==a.nodeName.toLowerCase()?void 0:a.defaultValue}),ja(function(a){return null==a.getAttribute("disabled")})||ka(K,function(a,b,c){var d;return c?void 0:a[b]===!0?b.toLowerCase():(d=a.getAttributeNode(b))&&d.specified?d.value:null}),ga}(a);m.find=s,m.expr=s.selectors,m.expr[":"]=m.expr.pseudos,m.unique=s.uniqueSort,m.text=s.getText,m.isXMLDoc=s.isXML,m.contains=s.contains;var t=m.expr.match.needsContext,u=/^<(\w+)\s*\/?>(?:<\/\1>|)$/,v=/^.[^:#\[\.,]*$/;function w(a,b,c){if(m.isFunction(b))return m.grep(a,function(a,d){return!!b.call(a,d,a)!==c});if(b.nodeType)return m.grep(a,function(a){return a===b!==c});if("string"==typeof b){if(v.test(b))return m.filter(b,a,c);b=m.filter(b,a)}return m.grep(a,function(a){return m.inArray(a,b)>=0!==c})}m.filter=function(a,b,c){var d=b[0];return c&&(a=":not("+a+")"),1===b.length&&1===d.nodeType?m.find.matchesSelector(d,a)?[d]:[]:m.find.matches(a,m.grep(b,function(a){return 1===a.nodeType}))},m.fn.extend({find:function(a){var b,c=[],d=this,e=d.length;if("string"!=typeof a)return this.pushStack(m(a).filter(function(){for(b=0;e>b;b++)if(m.contains(d[b],this))return!0}));for(b=0;e>b;b++)m.find(a,d[b],c);return c=this.pushStack(e>1?m.unique(c):c),c.selector=this.selector?this.selector+" "+a:a,c},filter:function(a){return this.pushStack(w(this,a||[],!1))},not:function(a){return this.pushStack(w(this,a||[],!0))},is:function(a){return!!w(this,"string"==typeof a&&t.test(a)?m(a):a||[],!1).length}});var x,y=a.document,z=/^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,A=m.fn.init=function(a,b){var c,d;if(!a)return this;if("string"==typeof a){if(c="<"===a.charAt(0)&&">"===a.charAt(a.length-1)&&a.length>=3?[null,a,null]:z.exec(a),!c||!c[1]&&b)return!b||b.jquery?(b||x).find(a):this.constructor(b).find(a);if(c[1]){if(b=b instanceof m?b[0]:b,m.merge(this,m.parseHTML(c[1],b&&b.nodeType?b.ownerDocument||b:y,!0)),u.test(c[1])&&m.isPlainObject(b))for(c in b)m.isFunction(this[c])?this[c](b[c]):this.attr(c,b[c]);return this}if(d=y.getElementById(c[2]),d&&d.parentNode){if(d.id!==c[2])return x.find(a);this.length=1,this[0]=d}return this.context=y,this.selector=a,this}return a.nodeType?(this.context=this[0]=a,this.length=1,this):m.isFunction(a)?"undefined"!=typeof x.ready?x.ready(a):a(m):(void 0!==a.selector&&(this.selector=a.selector,this.context=a.context),m.makeArray(a,this))};A.prototype=m.fn,x=m(y);var B=/^(?:parents|prev(?:Until|All))/,C={children:!0,contents:!0,next:!0,prev:!0};m.extend({dir:function(a,b,c){var d=[],e=a[b];while(e&&9!==e.nodeType&&(void 0===c||1!==e.nodeType||!m(e).is(c)))1===e.nodeType&&d.push(e),e=e[b];return d},sibling:function(a,b){for(var c=[];a;a=a.nextSibling)1===a.nodeType&&a!==b&&c.push(a);return c}}),m.fn.extend({has:function(a){var b,c=m(a,this),d=c.length;return this.filter(function(){for(b=0;d>b;b++)if(m.contains(this,c[b]))return!0})},closest:function(a,b){for(var c,d=0,e=this.length,f=[],g=t.test(a)||"string"!=typeof a?m(a,b||this.context):0;e>d;d++)for(c=this[d];c&&c!==b;c=c.parentNode)if(c.nodeType<11&&(g?g.index(c)>-1:1===c.nodeType&&m.find.matchesSelector(c,a))){f.push(c);break}return this.pushStack(f.length>1?m.unique(f):f)},index:function(a){return a?"string"==typeof a?m.inArray(this[0],m(a)):m.inArray(a.jquery?a[0]:a,this):this[0]&&this[0].parentNode?this.first().prevAll().length:-1},add:function(a,b){return this.pushStack(m.unique(m.merge(this.get(),m(a,b))))},addBack:function(a){return this.add(null==a?this.prevObject:this.prevObject.filter(a))}});function D(a,b){do a=a[b];while(a&&1!==a.nodeType);return a}m.each({parent:function(a){var b=a.parentNode;return b&&11!==b.nodeType?b:null},parents:function(a){return m.dir(a,"parentNode")},parentsUntil:function(a,b,c){return m.dir(a,"parentNode",c)},next:function(a){return D(a,"nextSibling")},prev:function(a){return D(a,"previousSibling")},nextAll:function(a){return m.dir(a,"nextSibling")},prevAll:function(a){return m.dir(a,"previousSibling")},nextUntil:function(a,b,c){return m.dir(a,"nextSibling",c)},prevUntil:function(a,b,c){return m.dir(a,"previousSibling",c)},siblings:function(a){return m.sibling((a.parentNode||{}).firstChild,a)},children:function(a){return m.sibling(a.firstChild)},contents:function(a){return m.nodeName(a,"iframe")?a.contentDocument||a.contentWindow.document:m.merge([],a.childNodes)}},function(a,b){m.fn[a]=function(c,d){var e=m.map(this,b,c);return"Until"!==a.slice(-5)&&(d=c),d&&"string"==typeof d&&(e=m.filter(d,e)),this.length>1&&(C[a]||(e=m.unique(e)),B.test(a)&&(e=e.reverse())),this.pushStack(e)}});var E=/\S+/g,F={};function G(a){var b=F[a]={};return m.each(a.match(E)||[],function(a,c){b[c]=!0}),b}m.Callbacks=function(a){a="string"==typeof a?F[a]||G(a):m.extend({},a);var b,c,d,e,f,g,h=[],i=!a.once&&[],j=function(l){for(c=a.memory&&l,d=!0,f=g||0,g=0,e=h.length,b=!0;h&&e>f;f++)if(h[f].apply(l[0],l[1])===!1&&a.stopOnFalse){c=!1;break}b=!1,h&&(i?i.length&&j(i.shift()):c?h=[]:k.disable())},k={add:function(){if(h){var d=h.length;!function f(b){m.each(b,function(b,c){var d=m.type(c);"function"===d?a.unique&&k.has(c)||h.push(c):c&&c.length&&"string"!==d&&f(c)})}(arguments),b?e=h.length:c&&(g=d,j(c))}return this},remove:function(){return h&&m.each(arguments,function(a,c){var d;while((d=m.inArray(c,h,d))>-1)h.splice(d,1),b&&(e>=d&&e--,f>=d&&f--)}),this},has:function(a){return a?m.inArray(a,h)>-1:!(!h||!h.length)},empty:function(){return h=[],e=0,this},disable:function(){return h=i=c=void 0,this},disabled:function(){return!h},lock:function(){return i=void 0,c||k.disable(),this},locked:function(){return!i},fireWith:function(a,c){return!h||d&&!i||(c=c||[],c=[a,c.slice?c.slice():c],b?i.push(c):j(c)),this},fire:function(){return k.fireWith(this,arguments),this},fired:function(){return!!d}};return k},m.extend({Deferred:function(a){var b=[["resolve","done",m.Callbacks("once memory"),"resolved"],["reject","fail",m.Callbacks("once memory"),"rejected"],["notify","progress",m.Callbacks("memory")]],c="pending",d={state:function(){return c},always:function(){return e.done(arguments).fail(arguments),this},then:function(){var a=arguments;return m.Deferred(function(c){m.each(b,function(b,f){var g=m.isFunction(a[b])&&a[b];e[f[1]](function(){var a=g&&g.apply(this,arguments);a&&m.isFunction(a.promise)?a.promise().done(c.resolve).fail(c.reject).progress(c.notify):c[f[0]+"With"](this===d?c.promise():this,g?[a]:arguments)})}),a=null}).promise()},promise:function(a){return null!=a?m.extend(a,d):d}},e={};return d.pipe=d.then,m.each(b,function(a,f){var g=f[2],h=f[3];d[f[1]]=g.add,h&&g.add(function(){c=h},b[1^a][2].disable,b[2][2].lock),e[f[0]]=function(){return e[f[0]+"With"](this===e?d:this,arguments),this},e[f[0]+"With"]=g.fireWith}),d.promise(e),a&&a.call(e,e),e},when:function(a){var b=0,c=d.call(arguments),e=c.length,f=1!==e||a&&m.isFunction(a.promise)?e:0,g=1===f?a:m.Deferred(),h=function(a,b,c){return function(e){b[a]=this,c[a]=arguments.length>1?d.call(arguments):e,c===i?g.notifyWith(b,c):--f||g.resolveWith(b,c)}},i,j,k;if(e>1)for(i=new Array(e),j=new Array(e),k=new Array(e);e>b;b++)c[b]&&m.isFunction(c[b].promise)?c[b].promise().done(h(b,k,c)).fail(g.reject).progress(h(b,j,i)):--f;return f||g.resolveWith(k,c),g.promise()}});var H;m.fn.ready=function(a){return m.ready.promise().done(a),this},m.extend({isReady:!1,readyWait:1,holdReady:function(a){a?m.readyWait++:m.ready(!0)},ready:function(a){if(a===!0?!--m.readyWait:!m.isReady){if(!y.body)return setTimeout(m.ready);m.isReady=!0,a!==!0&&--m.readyWait>0||(H.resolveWith(y,[m]),m.fn.triggerHandler&&(m(y).triggerHandler("ready"),m(y).off("ready")))}}});function I(){y.addEventListener?(y.removeEventListener("DOMContentLoaded",J,!1),a.removeEventListener("load",J,!1)):(y.detachEvent("onreadystatechange",J),a.detachEvent("onload",J))}function J(){(y.addEventListener||"load"===event.type||"complete"===y.readyState)&&(I(),m.ready())}m.ready.promise=function(b){if(!H)if(H=m.Deferred(),"complete"===y.readyState)setTimeout(m.ready);else if(y.addEventListener)y.addEventListener("DOMContentLoaded",J,!1),a.addEventListener("load",J,!1);else{y.attachEvent("onreadystatechange",J),a.attachEvent("onload",J);var c=!1;try{c=null==a.frameElement&&y.documentElement}catch(d){}c&&c.doScroll&&!function e(){if(!m.isReady){try{c.doScroll("left")}catch(a){return setTimeout(e,50)}I(),m.ready()}}()}return H.promise(b)};var K="undefined",L;for(L in m(k))break;k.ownLast="0"!==L,k.inlineBlockNeedsLayout=!1,m(function(){var a,b,c,d;c=y.getElementsByTagName("body")[0],c&&c.style&&(b=y.createElement("div"),d=y.createElement("div"),d.style.cssText="position:absolute;border:0;width:0;height:0;top:0;left:-9999px",c.appendChild(d).appendChild(b),typeof b.style.zoom!==K&&(b.style.cssText="display:inline;margin:0;border:0;padding:1px;width:1px;zoom:1",k.inlineBlockNeedsLayout=a=3===b.offsetWidth,a&&(c.style.zoom=1)),c.removeChild(d))}),function(){var a=y.createElement("div");if(null==k.deleteExpando){k.deleteExpando=!0;try{delete a.test}catch(b){k.deleteExpando=!1}}a=null}(),m.acceptData=function(a){var b=m.noData[(a.nodeName+" ").toLowerCase()],c=+a.nodeType||1;return 1!==c&&9!==c?!1:!b||b!==!0&&a.getAttribute("classid")===b};var M=/^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,N=/([A-Z])/g;function O(a,b,c){if(void 0===c&&1===a.nodeType){var d="data-"+b.replace(N,"-$1").toLowerCase();if(c=a.getAttribute(d),"string"==typeof c){try{c="true"===c?!0:"false"===c?!1:"null"===c?null:+c+""===c?+c:M.test(c)?m.parseJSON(c):c}catch(e){}m.data(a,b,c)}else c=void 0}return c}function P(a){var b;for(b in a)if(("data"!==b||!m.isEmptyObject(a[b]))&&"toJSON"!==b)return!1;
-
-return!0}function Q(a,b,d,e){if(m.acceptData(a)){var f,g,h=m.expando,i=a.nodeType,j=i?m.cache:a,k=i?a[h]:a[h]&&h;if(k&&j[k]&&(e||j[k].data)||void 0!==d||"string"!=typeof b)return k||(k=i?a[h]=c.pop()||m.guid++:h),j[k]||(j[k]=i?{}:{toJSON:m.noop}),("object"==typeof b||"function"==typeof b)&&(e?j[k]=m.extend(j[k],b):j[k].data=m.extend(j[k].data,b)),g=j[k],e||(g.data||(g.data={}),g=g.data),void 0!==d&&(g[m.camelCase(b)]=d),"string"==typeof b?(f=g[b],null==f&&(f=g[m.camelCase(b)])):f=g,f}}function R(a,b,c){if(m.acceptData(a)){var d,e,f=a.nodeType,g=f?m.cache:a,h=f?a[m.expando]:m.expando;if(g[h]){if(b&&(d=c?g[h]:g[h].data)){m.isArray(b)?b=b.concat(m.map(b,m.camelCase)):b in d?b=[b]:(b=m.camelCase(b),b=b in d?[b]:b.split(" ")),e=b.length;while(e--)delete d[b[e]];if(c?!P(d):!m.isEmptyObject(d))return}(c||(delete g[h].data,P(g[h])))&&(f?m.cleanData([a],!0):k.deleteExpando||g!=g.window?delete g[h]:g[h]=null)}}}m.extend({cache:{},noData:{"applet ":!0,"embed ":!0,"object ":"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"},hasData:function(a){return a=a.nodeType?m.cache[a[m.expando]]:a[m.expando],!!a&&!P(a)},data:function(a,b,c){return Q(a,b,c)},removeData:function(a,b){return R(a,b)},_data:function(a,b,c){return Q(a,b,c,!0)},_removeData:function(a,b){return R(a,b,!0)}}),m.fn.extend({data:function(a,b){var c,d,e,f=this[0],g=f&&f.attributes;if(void 0===a){if(this.length&&(e=m.data(f),1===f.nodeType&&!m._data(f,"parsedAttrs"))){c=g.length;while(c--)g[c]&&(d=g[c].name,0===d.indexOf("data-")&&(d=m.camelCase(d.slice(5)),O(f,d,e[d])));m._data(f,"parsedAttrs",!0)}return e}return"object"==typeof a?this.each(function(){m.data(this,a)}):arguments.length>1?this.each(function(){m.data(this,a,b)}):f?O(f,a,m.data(f,a)):void 0},removeData:function(a){return this.each(function(){m.removeData(this,a)})}}),m.extend({queue:function(a,b,c){var d;return a?(b=(b||"fx")+"queue",d=m._data(a,b),c&&(!d||m.isArray(c)?d=m._data(a,b,m.makeArray(c)):d.push(c)),d||[]):void 0},dequeue:function(a,b){b=b||"fx";var c=m.queue(a,b),d=c.length,e=c.shift(),f=m._queueHooks(a,b),g=function(){m.dequeue(a,b)};"inprogress"===e&&(e=c.shift(),d--),e&&("fx"===b&&c.unshift("inprogress"),delete f.stop,e.call(a,g,f)),!d&&f&&f.empty.fire()},_queueHooks:function(a,b){var c=b+"queueHooks";return m._data(a,c)||m._data(a,c,{empty:m.Callbacks("once memory").add(function(){m._removeData(a,b+"queue"),m._removeData(a,c)})})}}),m.fn.extend({queue:function(a,b){var c=2;return"string"!=typeof a&&(b=a,a="fx",c--),arguments.lengthh;h++)b(a[h],c,g?d:d.call(a[h],h,b(a[h],c)));return e?a:j?b.call(a):i?b(a[0],c):f},W=/^(?:checkbox|radio)$/i;!function(){var a=y.createElement("input"),b=y.createElement("div"),c=y.createDocumentFragment();if(b.innerHTML="  
a",k.leadingWhitespace=3===b.firstChild.nodeType,k.tbody=!b.getElementsByTagName("tbody").length,k.htmlSerialize=!!b.getElementsByTagName("link").length,k.html5Clone="<:nav>"!==y.createElement("nav").cloneNode(!0).outerHTML,a.type="checkbox",a.checked=!0,c.appendChild(a),k.appendChecked=a.checked,b.innerHTML="",k.noCloneChecked=!!b.cloneNode(!0).lastChild.defaultValue,c.appendChild(b),b.innerHTML="",k.checkClone=b.cloneNode(!0).cloneNode(!0).lastChild.checked,k.noCloneEvent=!0,b.attachEvent&&(b.attachEvent("onclick",function(){k.noCloneEvent=!1}),b.cloneNode(!0).click()),null==k.deleteExpando){k.deleteExpando=!0;try{delete b.test}catch(d){k.deleteExpando=!1}}}(),function(){var b,c,d=y.createElement("div");for(b in{submit:!0,change:!0,focusin:!0})c="on"+b,(k[b+"Bubbles"]=c in a)||(d.setAttribute(c,"t"),k[b+"Bubbles"]=d.attributes[c].expando===!1);d=null}();var X=/^(?:input|select|textarea)$/i,Y=/^key/,Z=/^(?:mouse|pointer|contextmenu)|click/,$=/^(?:focusinfocus|focusoutblur)$/,_=/^([^.]*)(?:\.(.+)|)$/;function aa(){return!0}function ba(){return!1}function ca(){try{return y.activeElement}catch(a){}}m.event={global:{},add:function(a,b,c,d,e){var f,g,h,i,j,k,l,n,o,p,q,r=m._data(a);if(r){c.handler&&(i=c,c=i.handler,e=i.selector),c.guid||(c.guid=m.guid++),(g=r.events)||(g=r.events={}),(k=r.handle)||(k=r.handle=function(a){return typeof m===K||a&&m.event.triggered===a.type?void 0:m.event.dispatch.apply(k.elem,arguments)},k.elem=a),b=(b||"").match(E)||[""],h=b.length;while(h--)f=_.exec(b[h])||[],o=q=f[1],p=(f[2]||"").split(".").sort(),o&&(j=m.event.special[o]||{},o=(e?j.delegateType:j.bindType)||o,j=m.event.special[o]||{},l=m.extend({type:o,origType:q,data:d,handler:c,guid:c.guid,selector:e,needsContext:e&&m.expr.match.needsContext.test(e),namespace:p.join(".")},i),(n=g[o])||(n=g[o]=[],n.delegateCount=0,j.setup&&j.setup.call(a,d,p,k)!==!1||(a.addEventListener?a.addEventListener(o,k,!1):a.attachEvent&&a.attachEvent("on"+o,k))),j.add&&(j.add.call(a,l),l.handler.guid||(l.handler.guid=c.guid)),e?n.splice(n.delegateCount++,0,l):n.push(l),m.event.global[o]=!0);a=null}},remove:function(a,b,c,d,e){var f,g,h,i,j,k,l,n,o,p,q,r=m.hasData(a)&&m._data(a);if(r&&(k=r.events)){b=(b||"").match(E)||[""],j=b.length;while(j--)if(h=_.exec(b[j])||[],o=q=h[1],p=(h[2]||"").split(".").sort(),o){l=m.event.special[o]||{},o=(d?l.delegateType:l.bindType)||o,n=k[o]||[],h=h[2]&&new RegExp("(^|\\.)"+p.join("\\.(?:.*\\.|)")+"(\\.|$)"),i=f=n.length;while(f--)g=n[f],!e&&q!==g.origType||c&&c.guid!==g.guid||h&&!h.test(g.namespace)||d&&d!==g.selector&&("**"!==d||!g.selector)||(n.splice(f,1),g.selector&&n.delegateCount--,l.remove&&l.remove.call(a,g));i&&!n.length&&(l.teardown&&l.teardown.call(a,p,r.handle)!==!1||m.removeEvent(a,o,r.handle),delete k[o])}else for(o in k)m.event.remove(a,o+b[j],c,d,!0);m.isEmptyObject(k)&&(delete r.handle,m._removeData(a,"events"))}},trigger:function(b,c,d,e){var f,g,h,i,k,l,n,o=[d||y],p=j.call(b,"type")?b.type:b,q=j.call(b,"namespace")?b.namespace.split("."):[];if(h=l=d=d||y,3!==d.nodeType&&8!==d.nodeType&&!$.test(p+m.event.triggered)&&(p.indexOf(".")>=0&&(q=p.split("."),p=q.shift(),q.sort()),g=p.indexOf(":")<0&&"on"+p,b=b[m.expando]?b:new m.Event(p,"object"==typeof b&&b),b.isTrigger=e?2:3,b.namespace=q.join("."),b.namespace_re=b.namespace?new RegExp("(^|\\.)"+q.join("\\.(?:.*\\.|)")+"(\\.|$)"):null,b.result=void 0,b.target||(b.target=d),c=null==c?[b]:m.makeArray(c,[b]),k=m.event.special[p]||{},e||!k.trigger||k.trigger.apply(d,c)!==!1)){if(!e&&!k.noBubble&&!m.isWindow(d)){for(i=k.delegateType||p,$.test(i+p)||(h=h.parentNode);h;h=h.parentNode)o.push(h),l=h;l===(d.ownerDocument||y)&&o.push(l.defaultView||l.parentWindow||a)}n=0;while((h=o[n++])&&!b.isPropagationStopped())b.type=n>1?i:k.bindType||p,f=(m._data(h,"events")||{})[b.type]&&m._data(h,"handle"),f&&f.apply(h,c),f=g&&h[g],f&&f.apply&&m.acceptData(h)&&(b.result=f.apply(h,c),b.result===!1&&b.preventDefault());if(b.type=p,!e&&!b.isDefaultPrevented()&&(!k._default||k._default.apply(o.pop(),c)===!1)&&m.acceptData(d)&&g&&d[p]&&!m.isWindow(d)){l=d[g],l&&(d[g]=null),m.event.triggered=p;try{d[p]()}catch(r){}m.event.triggered=void 0,l&&(d[g]=l)}return b.result}},dispatch:function(a){a=m.event.fix(a);var b,c,e,f,g,h=[],i=d.call(arguments),j=(m._data(this,"events")||{})[a.type]||[],k=m.event.special[a.type]||{};if(i[0]=a,a.delegateTarget=this,!k.preDispatch||k.preDispatch.call(this,a)!==!1){h=m.event.handlers.call(this,a,j),b=0;while((f=h[b++])&&!a.isPropagationStopped()){a.currentTarget=f.elem,g=0;while((e=f.handlers[g++])&&!a.isImmediatePropagationStopped())(!a.namespace_re||a.namespace_re.test(e.namespace))&&(a.handleObj=e,a.data=e.data,c=((m.event.special[e.origType]||{}).handle||e.handler).apply(f.elem,i),void 0!==c&&(a.result=c)===!1&&(a.preventDefault(),a.stopPropagation()))}return k.postDispatch&&k.postDispatch.call(this,a),a.result}},handlers:function(a,b){var c,d,e,f,g=[],h=b.delegateCount,i=a.target;if(h&&i.nodeType&&(!a.button||"click"!==a.type))for(;i!=this;i=i.parentNode||this)if(1===i.nodeType&&(i.disabled!==!0||"click"!==a.type)){for(e=[],f=0;h>f;f++)d=b[f],c=d.selector+" ",void 0===e[c]&&(e[c]=d.needsContext?m(c,this).index(i)>=0:m.find(c,this,null,[i]).length),e[c]&&e.push(d);e.length&&g.push({elem:i,handlers:e})}return h]","i"),ha=/^\s+/,ia=/<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,ja=/<([\w:]+)/,ka=/\s*$/g,ra={option:[1,""],legend:[1,"
","
"],area:[1,"",""],param:[1,"",""],thead:[1,"","
"],tr:[2,"","
"],col:[2,"","
"],td:[3,"","
"],_default:k.htmlSerialize?[0,"",""]:[1,"X
","
"]},sa=da(y),ta=sa.appendChild(y.createElement("div"));ra.optgroup=ra.option,ra.tbody=ra.tfoot=ra.colgroup=ra.caption=ra.thead,ra.th=ra.td;function ua(a,b){var c,d,e=0,f=typeof a.getElementsByTagName!==K?a.getElementsByTagName(b||"*"):typeof a.querySelectorAll!==K?a.querySelectorAll(b||"*"):void 0;if(!f)for(f=[],c=a.childNodes||a;null!=(d=c[e]);e++)!b||m.nodeName(d,b)?f.push(d):m.merge(f,ua(d,b));return void 0===b||b&&m.nodeName(a,b)?m.merge([a],f):f}function va(a){W.test(a.type)&&(a.defaultChecked=a.checked)}function wa(a,b){return m.nodeName(a,"table")&&m.nodeName(11!==b.nodeType?b:b.firstChild,"tr")?a.getElementsByTagName("tbody")[0]||a.appendChild(a.ownerDocument.createElement("tbody")):a}function xa(a){return a.type=(null!==m.find.attr(a,"type"))+"/"+a.type,a}function ya(a){var b=pa.exec(a.type);return b?a.type=b[1]:a.removeAttribute("type"),a}function za(a,b){for(var c,d=0;null!=(c=a[d]);d++)m._data(c,"globalEval",!b||m._data(b[d],"globalEval"))}function Aa(a,b){if(1===b.nodeType&&m.hasData(a)){var c,d,e,f=m._data(a),g=m._data(b,f),h=f.events;if(h){delete g.handle,g.events={};for(c in h)for(d=0,e=h[c].length;e>d;d++)m.event.add(b,c,h[c][d])}g.data&&(g.data=m.extend({},g.data))}}function Ba(a,b){var c,d,e;if(1===b.nodeType){if(c=b.nodeName.toLowerCase(),!k.noCloneEvent&&b[m.expando]){e=m._data(b);for(d in e.events)m.removeEvent(b,d,e.handle);b.removeAttribute(m.expando)}"script"===c&&b.text!==a.text?(xa(b).text=a.text,ya(b)):"object"===c?(b.parentNode&&(b.outerHTML=a.outerHTML),k.html5Clone&&a.innerHTML&&!m.trim(b.innerHTML)&&(b.innerHTML=a.innerHTML)):"input"===c&&W.test(a.type)?(b.defaultChecked=b.checked=a.checked,b.value!==a.value&&(b.value=a.value)):"option"===c?b.defaultSelected=b.selected=a.defaultSelected:("input"===c||"textarea"===c)&&(b.defaultValue=a.defaultValue)}}m.extend({clone:function(a,b,c){var d,e,f,g,h,i=m.contains(a.ownerDocument,a);if(k.html5Clone||m.isXMLDoc(a)||!ga.test("<"+a.nodeName+">")?f=a.cloneNode(!0):(ta.innerHTML=a.outerHTML,ta.removeChild(f=ta.firstChild)),!(k.noCloneEvent&&k.noCloneChecked||1!==a.nodeType&&11!==a.nodeType||m.isXMLDoc(a)))for(d=ua(f),h=ua(a),g=0;null!=(e=h[g]);++g)d[g]&&Ba(e,d[g]);if(b)if(c)for(h=h||ua(a),d=d||ua(f),g=0;null!=(e=h[g]);g++)Aa(e,d[g]);else Aa(a,f);return d=ua(f,"script"),d.length>0&&za(d,!i&&ua(a,"script")),d=h=e=null,f},buildFragment:function(a,b,c,d){for(var e,f,g,h,i,j,l,n=a.length,o=da(b),p=[],q=0;n>q;q++)if(f=a[q],f||0===f)if("object"===m.type(f))m.merge(p,f.nodeType?[f]:f);else if(la.test(f)){h=h||o.appendChild(b.createElement("div")),i=(ja.exec(f)||["",""])[1].toLowerCase(),l=ra[i]||ra._default,h.innerHTML=l[1]+f.replace(ia,"<$1>")+l[2],e=l[0];while(e--)h=h.lastChild;if(!k.leadingWhitespace&&ha.test(f)&&p.push(b.createTextNode(ha.exec(f)[0])),!k.tbody){f="table"!==i||ka.test(f)?""!==l[1]||ka.test(f)?0:h:h.firstChild,e=f&&f.childNodes.length;while(e--)m.nodeName(j=f.childNodes[e],"tbody")&&!j.childNodes.length&&f.removeChild(j)}m.merge(p,h.childNodes),h.textContent="";while(h.firstChild)h.removeChild(h.firstChild);h=o.lastChild}else p.push(b.createTextNode(f));h&&o.removeChild(h),k.appendChecked||m.grep(ua(p,"input"),va),q=0;while(f=p[q++])if((!d||-1===m.inArray(f,d))&&(g=m.contains(f.ownerDocument,f),h=ua(o.appendChild(f),"script"),g&&za(h),c)){e=0;while(f=h[e++])oa.test(f.type||"")&&c.push(f)}return h=null,o},cleanData:function(a,b){for(var d,e,f,g,h=0,i=m.expando,j=m.cache,l=k.deleteExpando,n=m.event.special;null!=(d=a[h]);h++)if((b||m.acceptData(d))&&(f=d[i],g=f&&j[f])){if(g.events)for(e in g.events)n[e]?m.event.remove(d,e):m.removeEvent(d,e,g.handle);j[f]&&(delete j[f],l?delete d[i]:typeof d.removeAttribute!==K?d.removeAttribute(i):d[i]=null,c.push(f))}}}),m.fn.extend({text:function(a){return V(this,function(a){return void 0===a?m.text(this):this.empty().append((this[0]&&this[0].ownerDocument||y).createTextNode(a))},null,a,arguments.length)},append:function(){return this.domManip(arguments,function(a){if(1===this.nodeType||11===this.nodeType||9===this.nodeType){var b=wa(this,a);b.appendChild(a)}})},prepend:function(){return this.domManip(arguments,function(a){if(1===this.nodeType||11===this.nodeType||9===this.nodeType){var b=wa(this,a);b.insertBefore(a,b.firstChild)}})},before:function(){return this.domManip(arguments,function(a){this.parentNode&&this.parentNode.insertBefore(a,this)})},after:function(){return this.domManip(arguments,function(a){this.parentNode&&this.parentNode.insertBefore(a,this.nextSibling)})},remove:function(a,b){for(var c,d=a?m.filter(a,this):this,e=0;null!=(c=d[e]);e++)b||1!==c.nodeType||m.cleanData(ua(c)),c.parentNode&&(b&&m.contains(c.ownerDocument,c)&&za(ua(c,"script")),c.parentNode.removeChild(c));return this},empty:function(){for(var a,b=0;null!=(a=this[b]);b++){1===a.nodeType&&m.cleanData(ua(a,!1));while(a.firstChild)a.removeChild(a.firstChild);a.options&&m.nodeName(a,"select")&&(a.options.length=0)}return this},clone:function(a,b){return a=null==a?!1:a,b=null==b?a:b,this.map(function(){return m.clone(this,a,b)})},html:function(a){return V(this,function(a){var b=this[0]||{},c=0,d=this.length;if(void 0===a)return 1===b.nodeType?b.innerHTML.replace(fa,""):void 0;if(!("string"!=typeof a||ma.test(a)||!k.htmlSerialize&&ga.test(a)||!k.leadingWhitespace&&ha.test(a)||ra[(ja.exec(a)||["",""])[1].toLowerCase()])){a=a.replace(ia,"<$1>");try{for(;d>c;c++)b=this[c]||{},1===b.nodeType&&(m.cleanData(ua(b,!1)),b.innerHTML=a);b=0}catch(e){}}b&&this.empty().append(a)},null,a,arguments.length)},replaceWith:function(){var a=arguments[0];return this.domManip(arguments,function(b){a=this.parentNode,m.cleanData(ua(this)),a&&a.replaceChild(b,this)}),a&&(a.length||a.nodeType)?this:this.remove()},detach:function(a){return this.remove(a,!0)},domManip:function(a,b){a=e.apply([],a);var c,d,f,g,h,i,j=0,l=this.length,n=this,o=l-1,p=a[0],q=m.isFunction(p);if(q||l>1&&"string"==typeof p&&!k.checkClone&&na.test(p))return this.each(function(c){var d=n.eq(c);q&&(a[0]=p.call(this,c,d.html())),d.domManip(a,b)});if(l&&(i=m.buildFragment(a,this[0].ownerDocument,!1,this),c=i.firstChild,1===i.childNodes.length&&(i=c),c)){for(g=m.map(ua(i,"script"),xa),f=g.length;l>j;j++)d=i,j!==o&&(d=m.clone(d,!0,!0),f&&m.merge(g,ua(d,"script"))),b.call(this[j],d,j);if(f)for(h=g[g.length-1].ownerDocument,m.map(g,ya),j=0;f>j;j++)d=g[j],oa.test(d.type||"")&&!m._data(d,"globalEval")&&m.contains(h,d)&&(d.src?m._evalUrl&&m._evalUrl(d.src):m.globalEval((d.text||d.textContent||d.innerHTML||"").replace(qa,"")));i=c=null}return this}}),m.each({appendTo:"append",prependTo:"prepend",insertBefore:"before",insertAfter:"after",replaceAll:"replaceWith"},function(a,b){m.fn[a]=function(a){for(var c,d=0,e=[],g=m(a),h=g.length-1;h>=d;d++)c=d===h?this:this.clone(!0),m(g[d])[b](c),f.apply(e,c.get());return this.pushStack(e)}});var Ca,Da={};function Ea(b,c){var d,e=m(c.createElement(b)).appendTo(c.body),f=a.getDefaultComputedStyle&&(d=a.getDefaultComputedStyle(e[0]))?d.display:m.css(e[0],"display");return e.detach(),f}function Fa(a){var b=y,c=Da[a];return c||(c=Ea(a,b),"none"!==c&&c||(Ca=(Ca||m("
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
\ No newline at end of file
diff --git a/web/forrest-notes.txt b/web/forrest-notes.txt
deleted file mode 100644
index f6ca3f53..00000000
--- a/web/forrest-notes.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-NOTES FROM FORREST:
-
--3. `gun.path('players').path(id).set({x:0, y:0});` doesn't trigger `gun.path('players').on()`
--2. gun.on() needs to be chainable with map and stuff.
--1. Maybe make the map module core to gun?
-
- 1 make raw HTTP work and document it (DONE), document that attach needs to be BEFORE listen. (talk to AJ)
- 2 make sure you SUPPRESS your comments, Mark. (DONE)
- 3 .get doesn't work on subsequent closures. WHYYY??
- 4 HOW DO I DELETE? Mark: delete the actual field from the data, but not the stream/meta.
- 5 security ideas: have gun KEY regexs that are whitelist/blacklist. Off the keys.
- 6 Forrest says, "arrays". (LISTS!)
- 7 get VAL without gun meta-data.
- 8 make it work with just Gun('/gun');
-
-
-gun.js
-gun-bundle.js
diff --git a/web/ham-notes.txt b/web/ham-notes.txt
deleted file mode 100644
index 8cdeeab0..00000000
--- a/web/ham-notes.txt
+++ /dev/null
@@ -1 +0,0 @@
-ways to explain HAM? I need to get a succinct explanation.
\ No newline at end of file
diff --git a/web/img/Thumbs.db b/web/img/Thumbs.db
deleted file mode 100644
index a146854d..00000000
Binary files a/web/img/Thumbs.db and /dev/null differ
diff --git a/web/img/devices.svg b/web/img/devices.svg
deleted file mode 100644
index ec64d377..00000000
--- a/web/img/devices.svg
+++ /dev/null
@@ -1,1195 +0,0 @@
-
-
-
-
-  
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-    
-    
-    
-    
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-    
-      
-    
-  
-  
-  
-    
-      
-        image/svg+xml
-        
-        
-      
-    
-  
-  
-    
-      
-        
-        
-        
-        
-        
-        
-      
-      
-        
-        
-        
-        
-        
-        
-      
-      
-        
-        
-        
-        
-        
-        
-      
-    
-    
-    
-    
-      
-      
-    
-    
-    
-      
-        
-        
-      
-      
-    
-    
-    
-      
-      
-      
-      
-    
-    
-      
-        
-        
-        
-        
-        
-        
-      
-      
-        
-        
-        
-        
-        
-        
-      
-      
-        
-        
-        
-        
-        
-        
-      
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-      
-      
-    
-    
-      
-      
-    
-    
-    
-    
-    
-    
-    
-      
-      
-      
-      
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-    
-      
-      
-    
-    
-      
-      
-    
-    
-      
-      
-    
-    
-      
-      
-    
-    
-      
-      
-    
-    
-      
-      
-    
-  
-
diff --git a/web/img/gun-logo.png b/web/img/gun-logo.png
deleted file mode 100644
index 6b9d4505..00000000
Binary files a/web/img/gun-logo.png and /dev/null differ
diff --git a/web/img/gun.svg b/web/img/gun.svg
deleted file mode 100644
index 673c91e6..00000000
--- a/web/img/gun.svg
+++ /dev/null
@@ -1,62 +0,0 @@
-
-
-
-
-  
-  
-    
-      
-        image/svg+xml
-        
-        
-      
-    
-  
-  
-  
-  
-
diff --git a/web/img/kimber.jpg b/web/img/kimber.jpg
deleted file mode 100644
index 72f7b14f..00000000
Binary files a/web/img/kimber.jpg and /dev/null differ
diff --git a/web/img/knockout.jpg b/web/img/knockout.jpg
deleted file mode 100644
index 252400d2..00000000
Binary files a/web/img/knockout.jpg and /dev/null differ
diff --git a/web/img/logo.html b/web/img/logo.html
deleted file mode 100644
index 33b87637..00000000
--- a/web/img/logo.html
+++ /dev/null
@@ -1,32 +0,0 @@
-
-	
-		gun
-		
-	
-	
-	
-		

-	
-
\ No newline at end of file
diff --git a/web/img/mouse.png b/web/img/mouse.png
deleted file mode 100644
index b61651ec..00000000
Binary files a/web/img/mouse.png and /dev/null differ
diff --git a/web/img/screenr.png b/web/img/screenr.png
deleted file mode 100644
index 4cd4320d..00000000
Binary files a/web/img/screenr.png and /dev/null differ
diff --git a/web/img/server.png b/web/img/server.png
deleted file mode 100644
index 8ceca21c..00000000
Binary files a/web/img/server.png and /dev/null differ
diff --git a/web/index.html b/web/index.html
deleted file mode 100644
index d8503745..00000000
--- a/web/index.html
+++ /dev/null
@@ -1,737 +0,0 @@
-
-
-
-	
-	
-	
-
-
-
-
-

-
-	

-
-		

-
-			
-
-			

-				

-					

-						
-					

-				

-				

-				

-				

-			

-
-			

-				

-					

-					

-				

-				

-				

-			

-
-			

-				

-					

-					

-				

-			

-
-			

-				

-				

-				

-				

-			

-
-			

-				

-				

-				

-				

-			

-
-			

-				

-				

-				

-				

-			

-
-			Distributed embedded graph database engine. The no pain, no cost, no backend, NoDB database, gun.
-		

-
-		

-
-			

-				

-				

-				

-				

-			

-
-			
-
-			

-				

-					

-					

-				

-				

-				

-				

-			

-
-			

-				

-					

-					

-				

-				

-				

-			

-
-			

-				

-					

-					

-				

-			

-
-			

-				

-				

-				

-				

-			

-
-
-			

-				

-				

-				

-				

-			

-
-			

-				

-				

-				

-				

-			

-
-			Distributed embedded graph database engine. The no pain, no cost, no backend, NoDB database, gun.
-		

-
-		
-		
-
-		

-			
Easiest Database Ever

-			
Sync state in a cinch at a distributed system scale.

-		

-
-	

-
-

-Fork me on GitHub
-
-
-

-	
-	
-	
-	
-	

-	
Try it now

-	
-	

-
-		

-			

-
var gun = Gun('https://gunjs.herokuapp.com/gun');
-gun.set({hello: "world"}).key('example/tutorial');

-			

-			

-				
-				In this 1 minute tutorial, we will connect to a gun peer, create an object, and sync data in realtime.
-			

-		

-
-	

-	
-	

-
-		

-			

-
var ref = gun.load('example/tutorial');
-ref.on(function(data){
-  $('body').text(JSON.stringify(data));
-});

-			

-			

-				
-				Congratulations! You just made an object and saved a reference to it.
-				In two tabs, we'll load that key to open a shared reference.
-			

-		

-
-	

-
-
-	

-
-		

-			
-			

-				

-					
←

-					
→

-					
↻

-					
-						https://gunjs.herokuapp.com/
-					
-					x
-					≡
-				

-				
-			

-			

-				

-					
←

-					
→

-					
↻

-					
-						https://gunjs.herokuapp.com/
-					
-					x
-					≡
-				

-				
-			

-		

-
-		

-		
-		

-			

-
ref.path('').set("");

-			

-			

-				
-				Let's update the "hello" field with a different value.
-				We can path into any field, and set it directly.
-			

-		

-		
-
-	

-
-	
-	

-

-
-
-
-
-
-

-
-	
The blog that started it all...

-	

-		Gun is a persisted distributed cache, part of a NoDB movement.
-		It requires zero maintenance and runs on your own infrastructure.
-		Think of it as "Dropbox for Databases" or a "Self-hosted Firebase".
-		This is an early preview, so check out the github and read on.
-	

-	

-		Everything gets cached, so your users experience lightning fast response times.
-		Since gun can be embedded anywhere javascript can run,
-		that cache can optionally be right inside your user's browser using localstorage fallbacks.
-		Updates are then pushed up to the servers when the network is available.
-	

-	

-		All conflict resolution happens locally in each peer using a deterministic algorithm.
-		Such that eventual consistency is guaranteed across all writes within the mesh,
-		with fault tolerant retries built in at each step. Data integrity is now a breeze.
-	

-	

-		Gun also establishes and repairs server to server communication across geographically separated machines,
-		with just the help of an initial IP from you.
-		It bridges the distance with a realtime connection,
-		so updates propagate at the speed of the raw pipes linking them.
-		However each server is intelligent enough to only subscribe to the necessary subsection of your data set that is in its working memory,
-		keeping things nimble for its connected users.
-	

-	

-		Data is then persisted to any S3 like service,
-		allowing you to save a truly webscale amount of "big data" without breaking your wallet.
-		Consistency across concurrency is achieved at this layer
-		by each parallel snapshot going through an idempotent transformation that is agreed upon.
-		The granularity and frequency of these snapshots can be tweaked by you,
-		easily tailor fitting it to your data needs and budget concerns.
-	

-	

-		In summary, this marks an important progression in web technologies.
-		Memory is getting cheap enough that we can now front load each connected user's active data
-		right into the application layer and manipulate it directly.
-		Networks are fast enough that if we get too many connected users we can just horizontally
-		redistribute them across different machines.
-		Conflict resolution algorithms are sophisticated enough to handle things immediately
-		in the majority of data cases, with the remaining few as transactions performed ontop.
-		

-			This is will be a win for both developers and users,
-			because it makes things easier to build and faster to respond.
-			We are excited about this and working hard to finish the first release.
-		

-		

-			If you would like to learn more, email hi@gunDB.io -
-			or join the Google Group.
-			Plus we're hiring, so contact us!
-		

-		
FAQ

-		
Why did you build this thing?

-		

-			1. I love databases, especially new ones that keep the working set in memory.
-			But I was horrified to realize that if I use a Database as a Service (DaaS)
-			then I would have to rely on a network call to get that data, which is horribly slow.
-			I wanted something faster, and if possible, cheaper - because they start charging you
-			outrageous prices if you get past their incredibly tiny free tier.
-		

-		

-			2. Hosting your own database is a pain because you have to maintain the hard drives.
-			Even the basic setup and configuration is nasty...
-			having to create a bunch of EBS volumes, attaching them, then mounting, formatting,
-			MDADM and LVM, striping, mirroring, and keeping fstab from locking on boot.
-			This is ignoring having to figure out how to resize them.
-			Even with SSDs you have problems that they are bound to one instance and
-			you get charged for the total volume size, not the amount used.
-		

-		

-			I wanted something easy, needing no maintenance and be extremely portable
-			- allowing me to spin up an ephemeral server anywhere, on any cloud,
-			and my data "just work" there.
-		

-		
How are you different from every other database that is trying to reinvent the wheel?

-		

-			1. Because gun is not a database (NoDB), it is a persisted distributed cache.
-			The fatal flaw with databases is that they assume some centralized authority.
-			While this may be the case initially when you are small,
-			it always ceases to be true when you become large enough that concurrency is unavoidable.
-			No amount of leader election and consensus algorithms can patch this
-			without facing an unjustified amount of complexity.
-			Gun resolves all this by biting the bullet -
-			it solves the hard problems first, not last.
-			It gets data synchronization and conflict resolution right from the beginning,
-			so it never has to rely on vulnerable leader election or consensus locking.
-		

-		

-			2. Plus it embeds directly into your application,
-			so you can do your own custom queries with just pure programming logic.
-			Meaning you never have to learn some silly separate query language again.
-			A query language which just attempts to be some DSL to RPC another machine
-			into doing the same query you could have already written in half the time
-			it took to learn the query language. Because face it, any sufficiently capable
-			query language has to be Turing complete, and at that point -
-			why aren't you just writing your entire application logic in it?
-			Your app is nothing without your data.
-		

-	

-
-
-	
-
-
-
\ No newline at end of file
diff --git a/web/intro.html b/web/intro.html
deleted file mode 100644
index e25f706f..00000000
--- a/web/intro.html
+++ /dev/null
@@ -1,65 +0,0 @@
-

-	

-		
GAME OVER

-		
-		?
-	

-

-
-

- 
"You don't remember what happened, do you?"

- 
Violence is a jarring thing. Imagine waking up and having no memory. No notion of who you are, where you came from, or why you were chosen.

- 
Your identity, erased. This is your story, and you are about to discover how.

- 
Hi, I'm Plublious. Let me be your guide.

- 
"You've got a dreadful case of amnesia. I guess you're just gonna have to trust me."

- 
"So hey, what's your name?"

- 
 or  .

- 
"You don't know? Well then, let's call you Bob."

- 
"Hi, !"

- 

- 	
"What is this all about?"  asks.
- 	
 or .

- 	

- 		
"Distributed systems."

- 		
"What?"  gawks.
- 		
"Distributed systems."

- 	

- 

-

-
-
-
-
\ No newline at end of file
diff --git a/web/notes-keys.txt b/web/notes-keys.txt
deleted file mode 100644
index ff53e997..00000000
--- a/web/notes-keys.txt
+++ /dev/null
@@ -1,127 +0,0 @@
-Alice comes online and does
-
-`var todo = gun.get('todo')`
-
-However she is the first peer, objectively, to be around.
-
-Therefore, very quickly her query returns empty. So when she
-
-`todo.put({first: "buy groceries"}).key('todo')`
-
-the put has to generate a soul and GUN is instructed to associate 'todo' with that soul.
-
-A few hours later, Bob comes online and does
-
-`var todo = gun.get('todo')`
-
-and thankfully he was connected to Alice so he gets her soul and node. So when he
-
-`todo.put({last: "sell leftovers"}).key('todo')`
-
-this was the expected and intended result, producing the following graph:
-
-```{
-	'ASDF': {
-		_: {'#': 'ASDF', '>': {
-			first: 1,
-			last: 2
-		}},
-		first: "buy groceries",
-		last: "sell leftovers"
-	}
-}```
-
-For purposes of clarity, we are using states as if they were linearizable (this is not actually the case though).
-
-Then Carl comes online and tries to
-
-`var todo = gun.get('todo')`
-
-But since he is not connected to Alice or Bob, gets an empty result.
-
-Carl does nothing with it, meaning no mutation, no soul, no generation.
-
-Then Dave comes online and does the same as everyone else:
-
-`var todo = gun.get('todo')`
-
-But Dave is only connected to Carl as a peer, therefore his get is empty. Like Alice, he then
-
-`todo.put({remember: "eat food!", last: "no leftovers!"}).key('todo')`
-
-Which unfortunately causes a new soul to be generated. Meanwhile, everybody then does the following:
-
-`todo.on(function(val){ console.log(val) })`
-
-Alice and Bob immediately get:
-
-```{
-	_: {'#': 'ASDF', '>': {
-		first: 1,
-		last: 2
-	}},
-	first: "buy groceries",
-	last: "sell leftovers"
-}```
-
-But Carl and Dave immediately get:
-
-```{
-	_: {'#': 'FDSA', '>': {
-		remember: 3,
-		last: 3
-	}},
-	remember: "eat food!",
-	last: "no leftovers!"
-}```
-
-However, a few hours later everybody gets connected. This is the graph everyone then has:
-
-```{
-	'ASDF': {
-		_: {'#': 'ASDF', '>': {
-			first: 1,
-			last: 2
-		}},
-		first: "buy groceries",
-		last: "sell leftovers"
-	},
-	'FDSA': {
-		_: {'#': 'FDSA', '>': {
-			remember: 3,
-			last: 3
-		}},
-		remember: "eat food!",
-		last: "no leftovers!"
-	}
-}```
-
-But their `on` function triggers again, with the following `val` locally for everyone:
-
-```{
-	first: "buy groceries",
-	remember: "eat food!",
-	last: "no leftovers!"
-}```
-
-GUN merges all the nodes with matching keys into a temporary in-memory object.
-
-This way it is safe to get empty results and still put data into it,
-
-Everyone will see a unified view of the data when they do get connected, as intended.
-
-This solves the null, singular, and plural problems for get all together.
-
-However, if we intentionally do not want to see a potentially conflicting unified view, any peer can:
-
-`var todos = gun.all('todo')`
-
-And have the discrete data via:
-
-`todos.map(function(todo, soul){ console.log(todo) })`
-
-Which would currently get called twice, with the distinct nodes of 'ASDF' and 'FDSA'.
-
-The only thing that this does not address is how write operations (put/key) would effect `get` nodes.
-
-However, I feel like finding the answer to that question will be much easier than trying to solve `get` in any other way.
\ No newline at end of file
diff --git a/web/notes-sql.txt b/web/notes-sql.txt
deleted file mode 100644
index 3c366ad2..00000000
--- a/web/notes-sql.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-OrderID	CustomerID	OrderDate
-10308	2	1996-09-18
-10309	37	1996-09-19
-10310	77	1996-09-20
-
-CustomerID	CustomerName	ContactName	Country
-1	Alfreds Futterkiste	Maria Anders	Germany
-2	Ana Trujillo Emparedados y helados	Ana Trujillo	Mexico
-3	Antonio Moreno Taquería	Antonio Moreno	Mexico
-
-{
-	Orders: {
-		10308: {OrderID: 10308, Customer: {#: 2}, OrderDate: '1996-09-18' }
-		10309: {OrderID: 10309, Customer: {#: 3}, OrderDate: '1996-09-19' }
-		10310: {OrderID: 10310, Customer: {#: 77}, OrderDate: '1996-09-20' }
-	}
-	Customers: {
-		1: {CustomerID: 1,	CustomerName: "Alfreds Futterkiste", ContactName:	"Maria Anders", Country: "Germany" }
-		2: {CustomerID: 2,	CustomerName: "Ana Trujillo Emparedados y helados", ContactName:	"Ana Trujillo", Country: "Mexico" }
-		3: {CustomerID: 3,	CustomerName: "Antonio Moreno Taquería", ContactName:	"Antonio Moreno", Country: "Mexico" }
-	}
-}
-
-gun.sql().select('OrderID', 'Customers.CustomerName', 'OrderDate').from('Orders').join('Cutomers').on('Customer'); // ignore /\s*=/ig and beyond
-
-^compatibility. // select should accept 1 string that is /\,\s*/ig separated, arguments of strings, an array of strings.
-// unfortunately for compatibility mode, you might have to match&strip any string that has a '.' in it with a subsequent .join/.on
-better:
-
-gun.sql().select('OrderID', OrderDate').from('Orders').join.on('Customer').select('CustomerName').run().get(function(row){
-	console.log(row); // {OrderID: 10308, CustomerName: "Ana Trujillo Emparedados y helados", OrderDate: "1996-09-18" }
-});
\ No newline at end of file
diff --git a/web/notes.txt b/web/notes.txt
deleted file mode 100644
index 41d02b2e..00000000
--- a/web/notes.txt
+++ /dev/null
@@ -1,135 +0,0 @@
-HOOKS:
- - TRANSPORT:
-	Has to basically re-implement set/get/key/all over some transport.
-	REMEMBER that you have to subscribe on all set/get/key/all (especially key).
-
-
-Notes:
-
-Messaging
-Every message has who/what/when/where/why/how metadata.
-Who is information that identifies the potential keys or locations a reply should be made to, such that a user can receive it no matter where they are
-What is the message/delta itself
-When is when the message was sent, this may have no relation to a timestamp on a delta transmission
-Where is the destination that the message is trying to get to, and the paths it has taken to get there
-Why is any arbitrary comment
-How is the transformation that caused the message, and potentially the expected transformation to happen
-
-Data
-Because data can be in more than one place at a time, its identifier should not be mixed with any whereabouts even if you are planning on only using it within your walled garden.
-Instead, the data itself should express its particular locality - information about a statue in Rome should not be identified a being Roman, but express it is Roman.
-Therefore, preferrably the identifier for a thing should be globally unique, in case it is ever shared by multiple services - that way conflict won't happen.
-This is important because that way any service is forced to do a scan on its own dataset to match with this service's own identifier and link them together - or start fresh if no match exists.
-Information is not deleted, mostly just dereferenced - which may eventually cause cold storage, and loss of data as every system has physical limitations.
-Arrays cannot be supported because cardinality is actually an expression of the data, not an identifier - for if it were, it would cause concurrency problems resulting in divergence.
-
-Identifiers
-Reality seems to be lacking any true identifiers because we perceive things in incredibly mutable states.
-Often times attributes that may appear to be static are in fact not - take for instance the color of a car.
-One generally assumes that the color will not change, since it is not observed much - however the lifetime of a program may outlive the developer. Even the sun will go dark one day.
-This is the power of graphs, particularly in a functional setting - they are searchable, potentially timelessly.
-As such identifiers should only be created in response to an attempt to match incoming unfound data with data stored.
-If successful, the service is free and should make as many extra identifiers to reference and link that data again as to avoid doing slow scans again.
-The most likely candidate for that identifier is the identifier that was given to the service, as there is high probability that the requester will make such requests again.
-Throught his means, an identifier can spread like a virus through multiple services, where if it exists it can be retrieved immediately.
-Thus, no one identifier should potentially conflict with any other identifier, as that would produce an erroneous lookup and a faulty response.
-
-Do identifiers point to subsets or nodes, or both? Where do identifiers live? Ever in the graph itself? A developer of course would want an identifier to point to both. 
-However this is a little tricky, because a single node by itself is fairly useless (hermeneutics) because it has no context, especially if it is composed of many parts.
-So an identifier referencing a "single node" should technically pull in its relations as well, into the subset. But what then do we return to the developer? The subset or the node?
-If you assume the node, then identifiers "point" to different types of data - unless we allow the node the same methods as the subset, where map returns itself.
-If we return the subset, it is inconvenient that you then have to scan for the thing you were already identifying, unless the map method also accepts traversal strings.
-Identifiers are suppose to intentionally allow humans to think in a document based perspective, however there is no guarantee that the pieces in their system will remain that way.
-Take for example a car, you'd assume that the wheel is part of the car and should be referenced as such. But what happens when the tire pops? It is removed and then used as a swing.
-Now tell me, the "belongingness" of the tire is now in the hierarchy of the tree that it was hung on. Hierarchy is imposed by directional relations, not as static structures.
-So there must be a way to evolve the system, for if we assume the identifier now references the subset, giving context to the original node, we need all of them to be uniquely referenced.
-The unique references are the system's internal IDs, not the human friendly identifiers, these must be system-wide guaranteed to be unique.
-But if everything has one, no matter how small, then that increases the odds quite substantially of conflicts. Meaning larger IDs need to be generated, which is never pretty.
-This also then causes scanning issues, cause now countless tiny nodes are floating around in the system that will get mapped over, that is unpleasant for the developer.
-Unless of course there are really good tools that allow them to map with string traversals (known paths) and value traversal (matching structures), in addition to the callback.
-Meaning everything should be its own object, but really good search tools should be available to make this easy.
-If this is the case, enforce the many-solution, that you alway have a subset and never a single node - a single node is just a subset of one.
-Or is it? Or is it the subset of the things that compose the node? Do you hide these from the developer? Expose them?
-It seems like subset of one works fine when you already have the larger subset, but not when you are using the initial identifier.
-So can we mitigate that by providing really good priority loading tools?
-
-Special Characters
-These are reserved for gun, to include meta-data on the data itself.
-/ is used as a delimiter in service specific identifiers
-# is used to define the transition from a graph identifier, into the nodes themselves
-. represents walking the path through a node's scope
-_ represents non-human data in the graph that the amnesia machine uses to process stuff
-> and < are dedicated to comparing timestamp states, timelessly to avoid malicious abuse (this should always come last, because requests will be rejected without it)
-~ is who
-* relates to key prefixes
-*> lexical constraint
-*< lexical constraint
-@ is where it should be delivered to.
-@> is where it has been or will be rebroadcasted through.
-% is for byte constraints.
-: is time
-$ is value
-' is for escaping characters contained within '
-
-{
-	who: {}
-	,what: {'#": 'email/hi@example.com'}
-	,when: {'>': 1406184438192 }
-	,where: {}
-	,how: '*'
-}
-{
-	_: {
-		#: 'email/hi@example.com'
-		>: 1406184438192
-	}
-}
-
-Stream
-If we receive a message with data at a symbolic scope that doesn't exist we should still save it.
-However if we attempt to read it, we should be unable to access it because the symbols haven't been connected.
-That way idempotently, when the symbols are connected, it'll then be readable if they haven't already been overwritten.
-Grouping of symbols always inherit and merge, if all of them need to be dereferenced you must explicitly dereference it.
-How do we do memory management / clean up then of old dead bad data?
-
-Init
-You initialize with a node(s) you want to connect to.
-
-DISK
-We might want to compact everything into a journal, with this type of format:
-#'ASDF'.'hello'>12743921$"world"
-Over the wire though it would include more information, like the ordering of where it has/will-be traversed through.
-@>'random','gunjs.herokuapp.com','127.0.0.1:8080':7894657#'ASDF'.'hello'>12743921$"world"
-What about ACKs?
-@'random':7894657#'ASDF'.'hello'>12743921
-
-There is a limited amount of space on a machine, where we assume it is considered ephemeral as a user viewing device.
-Such machines are the default requiring no configuration, machines that are permanent nodes can configure caps.
-For instance, the browser would be a looping ephemeral device, where the 5mb localStorage gets recycled.
-The localhost server of that device would be permanent and not loop, but halt when storage runs out.
-By thus virtue of this, clients should be able to throttle (backpressure) their data intake.
-The size of primitive values is fundamentally outside our control and left to the developer or multiparting.
-If they decide to have a string that exceeds memory or local disk then their app will always fail regardless of multiparting.
-However it is our duty to make sure that the rest of the structured data is streamable, including JSON.
-Therefore networks and snapshotting should throttle to a size limit specified by the requesting agent.
-Resuming these requests will be based soley on a lexical cursor included in the delivery, to avoid remembering state.
-The asynchronicity of these lexical cursor could pose potential concurrency issues, and have to be considered ad hoc.
-That is to say, if you are dealing with a large data set, you should always subscribe to updates it and never merely "get" it.
-For the edge case of the singleton "get", the lexical cursor will progress until it receives the same or no cursor back from the server and terminate.
-
-total over a range of time: {"alice", "bob", "carl", "david", "ed", "fred", "gary", "harry", "ian", "jake", "kim"}
-client requests "users" at limit of 30 characters, server replies with (rounded down) {"alice", "bob", "carl"}.
-after a while the client has processed this and goes for the next step, requesting /users?*>=carl&%=30 and {"david", "ed", "fred", "gary"} is returned.
-then again /user?*>gary&%=30 with {"harry", "ian", "jake", "kim"} response.
-then again /user?*>kim&%=30 with {} response. No subsequent cursor is possible, end.
-Note: I do not know yet if the lexical cursor should be open-closed boundary, open-open, closed-closed, or closed-open - decide later.
-
-
-
-
-
-
-
-
-
-
diff --git a/web/tabs.html b/web/tabs.html
deleted file mode 100644
index b1988606..00000000
--- a/web/tabs.html
+++ /dev/null
@@ -1,21 +0,0 @@
-
-
-
-	
-	
-	
-
-
-	loading...
-	
-
-
\ No newline at end of file
diff --git a/web/think.html b/web/think.html
deleted file mode 100644
index 359a8ee1..00000000
--- a/web/think.html
+++ /dev/null
@@ -1,406 +0,0 @@
-
-
-
-
-	
-	
-
-
-
-
Before we can start building anything interesting, we should have a way to jot down our thoughts. Therefore the first thing we will build is a tool to keep track of what needs to be done. The infamous To-Do app, allowing us to keep temporary notes.

-
-
So what are the requirements? The ability to add a note, read our notes, and to clear them off. We will also need a space to keep these notes in, and a web page to access them through. Let's start with the page! You can edit the code below, which will update the live preview.

-
-
... loading editor and preview ...
-	
-

-
-
-
-
-

-	
What does this do? HTML is how we code the layout of a web page.

-	
    
-		
  • We first must wrap all our code in an open and closing html tag so our computer knows it is a web page.
    • 
-		
  • The body tag tells it to display the contents enclosed within.
    • 
-		
  • h1 is one of many semantic tags for declaring a title, others include h2, h3 and so on of different sizes.
    • 
-		
  • A form is a container for getting information from a user.
    • 
-		
  • Forms have inputs which let the user type data in, it is a self-closing tag.
    • 
-		
  • The button can be pressed, causing an action that we code to happen.
    • 
-		
  • ul is an unordered list which we will display our thoughts inside of.
    • 
-	

-	
Now, try changing the h1 text in the editor from "Title" to the name of our app, "Thoughts".

-	
-	
-
-

-
-

-	
HTML controls the layout, but how do we control what happens when a user presses the 'add' button? This is done with javascript. But using raw javascript quickly becomes verbose, so to keep things concise we will use a popular tool called jQuery. We also need a tool to store data, so we will include GUN as well.

-	
Insert the following between the ending ul tag and the ending body tag, replacing the comment line:

-	
-	
    
-		
  • The script tag tells the browser to use some javascript code, and src is where to load it from.
    • 
-		
  • We can then test to see if our code worked with an alert message, which pops up and forces you to press ok.
    • 
-		
  • In javascript, we denote text by wrapping it inside quotation marks, double "" or single ''.
    • 
-		
  • We instruct the computer to notify us with that text by calling the alert function using parenthesis ().
    • 
-		
  • A function is just a fancy word for a reusable piece of code that does something when we call its name, such as alert.
-		
  • A semicolon ; marks the end of a javascript sentence in the same way a period marks the end of a sentence.
    • 
-	

-	
-	
-
-

-
-

-	
Wonderful! You should have gotten the alert message, this means writing code works! Let's replace the alert line entirely with code that responds to user input.

-	
-	
What's going on here?

-	
    
-		
  • jQuery is a function like alert, its name is $ which can be called with parenthesis ().
    • 
-		
  • Calling $ with 'form' as the input gives us a reference to the corresponding HTML form tag.
    • 
-		
  • We then call on with two inputs. First the text name of an event we want to react to, and then a function we create.
-		
      
-			
    • Events are predefined ways we can interact with a user, such as 'mousemove' or a 'keypress'.
      • 
-			
    • We use 'submit' because it responds to both a button 'click' and hitting enter on a form.
      • 
-			
    • Our function will get called with the event every time the user does that action, allowing us to react to their input.
      • 
-		
    
-		
  • The default behavior of a form is to cause the browser to change pages which is annoying, we prevent that by calling preventDefault on the event.
    • 
-		
  • Finally, calling $ with 'input' will reference the HTML input tag which we then call val on, giving us the text the user typed in.
    • 
-	

-	
-	
-
-

-
-

-	
Now that users can jot down their thoughts, we need a place to save them. Let's start using GUN for just that.

-	
-	
    
-		
  • The variable keyword tells javascript that we want to create a reference named gun that we can reuse.
    • 
-		
  • We call Gun to start the database, which only needs to be done once per page load.
    • 
-		
  • Now we want to open up a reference to some data, so we call get with the name of the data we want.
    • 
-		
  • However, no data has been saved to 'thoughts' yet! Let's fix that in the next step by using gun.
    • 
-	

-	
-
-

-
-

-	
Replace the alert line in the submit function with the following:

-	
-	
    
-		
  • We're telling gun to add the value of the input as an item in a set of thoughts.
    • 
-		
  • Then we also want the input's value to become empty text, so we can add new thoughts later.
    • 
-	

-	
-
-

-
-

-	
Fantastic! Now that we can successfully store data, we want show the data! Replace the comment line in the editor with the following:

-	
-	
    
-		
  • In the same way $'s on reacts to events, so does gun. It responds to any update on 'thoughts'.
    • 
-		
  • map calls the function you input into it for each item in the set, one at a time.
    • 
-		
  • We get the thought value itself and a unique identifier for the item in the set.
    • 
-		
  • This next line looks scary, but read it like this, "make variable li equal to X or Y".
-		
      
-			
    • The X part asks $ to find the id in the HTML and get it.
      • 
-			
    • In javascript, || means 'or', such that javascript will use X if it exist or it will use Y.
      • 
-			
    • The Y part asks $ to create a new <li> HTML tag, set its id attribute to our id and append it to the end of the HTML ul list.
      • 
-		
    • 
-		
  • Finally, the javascript if statement either asks $ to make thought be the text of the li if thought exists, else hide the li from being displayed.
    • 
-		
  • Altogether it says "Create or reuse the HTML list item and make sure it is in the HTML list, then update the text or hide the item if there is no text".
    • 
-	

-	
-
-

-
-

-	
Finally we want to be able to clear off our thoughts when we are done with them. The interface for this could be done in many different ways, but for simplicity we will use a double tap as the gesture to clear it off. Replace the comment line in the editor with this code.

-	
-	
    
-		
  • In order to react to any 'dblclick' event rather than a specific one, we call on on the page's 'body' as a whole.
    • 
-		
  • But we want to filter the events to ones that happened only on any 'li' tag. Fortunately, we can call on with an optional second input of 'li' which does just that.
    • 
-		
  • Inside a function we get a special this keyword in javascript, which $ uses as a reference to the original HTML tag that caused the event.
    • 
-		
  • Calling path tells gun to filter its data to just the id of the thought we want to clear off.
    • 
-		
  • Then calling put on that tells gun to update that thought to null, so we no longer have the thought.
    • 
-		
  • And whenever an update happens, gun's on function from the previous step gets called again, which then hides the corresponding HTML list item.
-	

-	
-
-

-
-

-	
Congratulations! You are all done, you have built your first GUN app!

-	
In the next tutorial we will use GUN to synchronize data in realtime across multiple devices. We'll start by copying the app we made here and modifying it to become a chat app.

-	Next Tutorial: Converse
-

-
-
-
-
diff --git a/web/try.html b/web/try.html
deleted file mode 100644
index 697d70ad..00000000
--- a/web/try.html
+++ /dev/null
@@ -1,232 +0,0 @@
-
-
-
-	
-	
-	
-
-
-	
-	
-	
-	
-	

-	
Try it now

-	
-	

-
-		

-			

-
var gun = Gun('https://gunjs.herokuapp.com/gun');
-gun.put({hello: "world"}).key('example/tutorial');

-			

-			

-				
-				In this 1 minute tutorial, we will connect to a gun peer, create an object, and sync data in realtime.
-			

-		

-
-	

-	
-	

-
-		

-			

-
var ref = gun.get('example/tutorial');
-ref.on(function(data){
-  $('body').text(JSON.stringify(data));
-});

-			

-			

-				
-				Congratulations! You just made an object and saved a reference to it.
-				In two tabs, we'll load that key to open a shared reference.
-			

-		

-
-	

-
-
-	

-
-		

-			
-			

-				

-					
←

-					
→

-					
↻

-					
-						https://gunjs.herokuapp.com/
-					
-					x
-					≡
-				

-				
-			

-			

-				

-					
←

-					
→

-					
↻

-					
-						https://gunjs.herokuapp.com/
-					
-					x
-					≡
-				

-				
-			

-		

-
-		

-		
-		

-			

-
ref.path('').put("");

-			

-			

-				
-				Let's update the "hello" field with a different value.
-				We can path into any field, and update it directly.
-			

-		

-		
-
-	

-
-	
-	

-
-
\ No newline at end of file
diff --git a/web/wire.txt b/web/wire.txt
deleted file mode 100644
index 08e880b4..00000000
--- a/web/wire.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-WIRE PROTOCOL
-
-put/save/set/create/post/delete/update/change/mutate
-
-get/open/load/call/location/address
-
-key/name/reference/index/point
-
-
-/gun {data: 'yay', #: "soul"}
-
-/gun/key {#: 'soul'}
-
-/gun/key
-
-/gun/key?*=/&*<=a&*>=c
-
-
-Reads are a GET and do not contain a body.
-Writes have a body.
-
-Reads may call the callback multiple times, and will end with an empty object.
-
-Reads are either a singular pathname or pound query to get a key or soul's individual node.
-Or a read is to retrieve information on many key's and their corresponding soul.
-Query formats are allowed as:
-?
-	* = /
-		star means the peer should reply with all the KEYS it has up to the character in the value of the query.
-		Ex. "/users/?*=/" would return {"users/marknadal": {"#": "ASDF"}, "users/ambernadal": {"#": "FDSA"}}
-		If there is no up to character, then all subkeys would be returned as well.
-		The peer does not have to reply with all of its keys, however if there are more keys for the receiving peer, it should give it a lexical cursor. (how?)
-		Ordering is not guaranteed, however if there is ordering, it should be lexical. Therefore things like limit or skip do not necessarily apply.
-	*> = a
-	*< = c
-		star greater than and star less than are lexical constraints on returning all peers KEYS.
-		Ex. "/users/?*=/&*>=a&*<=c" asks the peer to return users that start and end between 'a' and 'c',
-			thus {"users/alice": {"#": "DSAF"}, "users/bob": {"#": "DAFS"}, "user/carl": {"#": "SAFD"}}
-	# = ASDF
-		pound means the peer should reply with a graph node that has this exact soul. There should be no key prefixed path on this type of request. A special case of "#=*" indicates to literally dump the entire graph, as is, to the client. Lexical carets are okay.
-	% = 30
-		percent means byte constraint requested by the peer asking for data.
-	> = 1426007247399
-	< = 1426007248941
-		greater than and less than are time/state constraints, allowing a peer to request historical data or future data.
-		the peer processing the request ought to reply with such state data if it has it, but has no requirement to keep such data (but is encouraged to do so).
-
-Using query constraints is generally not advised, as it is better to do all computation at the point of data, or have all data at the point of computation, not inbetween.
-This protocol should work over HTTP, or the JSONP fallback specification, and emulated over WS or WebRTC.
-
-On a separate note, it might be advantageous to chunk node objects into pieces as well, in case they grow too big or especially contain too many field/value pairs. If this was built into the behavior, to handle better streaming and lower memory use cases, it would also become ideal for groups of data without any extra logic or behavior.
-
-There are three types of grouped related data:
-
-1. Dependent Causality (videos, audio, etc.)
-2. Relative Ordering (age, height, users, etc.)
-3. Independent
-
-Obviously independent data is fairly uninteresting, as the HAM can handle convergence just on states alone. Relative ordering requires only application specific logic to sort data for the view, or computing averages and such. They can always be streamed in efficiently by creating indices on the desired properties and then doing lexical loading. Any conflict in ordering on one property can be handled by cascading into other properties, like from sort order to then creation date. By this means, all data should be explicitly recorded, not implicit.
-
-Dependent Causality is the most interesting, and unfortunately not conducive towards efficient means of streaming. This means the data must be sorted in a particular direction, and even if you receive a "later" chunk, you should not reveal it until all earlier chunks have been digested. Which might means you have to discard it from memory if space runs out, and then pull it back in again at the right time. Let's look at some differences here with some concrete examples.
-
-If we have 4 people in the back room, and we want to sort them by height as they come on to stage, then order in which they come out from behind does not matter. Say their heights are 4, 5, 6, and 7 feet tall. When the first one comes out we do not need to do anything, where the 6 is the first one. Then the second one comes out and is 4, so we put them to the left of the first. Then third comes out the 7, and we put them to the right of the first. Finally, the fourth comes out as the 5, and we put them inbetween the first and second. This method allows us to incrementally sort and always see the correct ordering without waiting.
-
-However, lets say we have collaborative text. We have the initial text of "Hello" and an editor named Alice adds ", World!" in which each letter (' ', ',', 'W', 'o', 'r', 'l', 'd', '!') is streamed, potentially out of order, to Bob. We are going to assert that relative ordering does not work because, for the sake of explanation, any individual letter could be lost in the mail as they are sent. The last thing we want is Bob receiving the three characters 'old', which has correct relative ordering but wrong dependency, and thinking Alice is insulting him for being senile. Therefore every letter should specify the message that comes before it, the letter that it depends upon.
\ No newline at end of file