From 300c1dc390722f91c8a58f173bde4b157c32f5a9 Mon Sep 17 00:00:00 2001
From: Mark McGranaghan <mmcgrana@gmail.com>
Date: Tue, 30 Oct 2012 16:18:02 -0700
Subject: [PATCH] start regular-expressions
---
examples.txt | 2 +-
examples/regexs/regexs.go | 19 ---------
examples/regexs/regexs.sh | 5 ---
.../regular-expressions.go | 40 +++++++++++++++++++
.../regular-expressions.sh | 4 ++
5 files changed, 45 insertions(+), 25 deletions(-)
delete mode 100644 examples/regexs/regexs.go
delete mode 100644 examples/regexs/regexs.sh
create mode 100644 examples/regular-expressions/regular-expressions.go
create mode 100644 examples/regular-expressions/regular-expressions.sh
diff --git a/examples.txt b/examples.txt
index 85d7d4b..27558cd 100644
--- a/examples.txt
+++ b/examples.txt
@@ -45,7 +45,7 @@ Defer
Collection Functions
String Functions
# String Formatting
-# Regexs
+Regular Expressions
# Bytes
# JSON
# Time
diff --git a/examples/regexs/regexs.go b/examples/regexs/regexs.go
deleted file mode 100644
index 5394db3..0000000
--- a/examples/regexs/regexs.go
+++ /dev/null
@@ -1,19 +0,0 @@
-package main
-
-import "regexp"
-import "fmt"
-
-func main() {
- m1, _ := regexp.MatchString("p[a-z]+ch", "apple")
- m2, _ := regexp.MatchString("p[a-z]+ch", "peach")
- fmt.Println(m1)
- fmt.Println(m2)
-
- r1, _ := regexp.Compile("p[a-z]+ch")
- fmt.Println(r1.MatchString("apple"))
- fmt.Println(r1.MatchString("peach"))
-}
-
-// todo: more
-// todo: gsub with regexp
-// todo: rename to "Regular Expressions"
diff --git a/examples/regexs/regexs.sh b/examples/regexs/regexs.sh
deleted file mode 100644
index eb37512..0000000
--- a/examples/regexs/regexs.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-$ go run regexs.go
-false
-true
-false
-true
diff --git a/examples/regular-expressions/regular-expressions.go b/examples/regular-expressions/regular-expressions.go
new file mode 100644
index 0000000..8d2491a
--- /dev/null
+++ b/examples/regular-expressions/regular-expressions.go
@@ -0,0 +1,40 @@
+// Go offers built-in support for [regular expressions](http://en.wikipedia.org/wiki/Regular_expression).
+// Here are some examples of common regexp-related tasks
+// in Go.
+
+package main
+
+import "fmt"
+import "regexp"
+
+func main() {
+
+ // This tests whether a pattern matches a string.
+ match, _ := regexp.MatchString("p[a-z]+ch", "apple")
+ fmt.Println("match:", match)
+
+ // In the above example we used a string pattern
+ // directly. For other regular expression tasks you'll
+ // need to `Compile` a `Regexp` struct.
+ r1, _ := regexp.Compile("p[a-z]+ch")
+
+ // Many methods are available on these structs. Here's
+ // a match test like we saw earlier.
+ fmt.Println("match:", r1.MatchString("apple"))
+
+ //
+
+ // When creating top-level constants with regular
+ // expressions, you can use the `MustCompile` variant
+ // of the `Compile` function we saw earlier. A plain
+ // `Compile` won't work for constants because it has 2
+ // return values.
+ cr := regexp.MustCompile("p[a-z]+ch")
+ fmt.Println("regex:", cr)
+
+}
+
+// todo:
+// todo: gsub
+
+// todo: Examples of regular expressions in #golang: https://gobyexample.com/regular-expressions One of the best areas for a "by example" approach IMO.
diff --git a/examples/regular-expressions/regular-expressions.sh b/examples/regular-expressions/regular-expressions.sh
new file mode 100644
index 0000000..52fb01e
--- /dev/null
+++ b/examples/regular-expressions/regular-expressions.sh
@@ -0,0 +1,4 @@
+$ go run regular-expressions.go
+match: false
+match: false
+regex: p[a-z]+ch