9e216da9ef
After go1.16, go will use module mode by default, even when the repository is checked out under GOPATH or in a one-off directory. Add go.mod, go.sum to keep this repo buildable without opting out of the module mode. > go mod init github.com/mmcgrana/gobyexample > go mod tidy > go mod vendor In module mode, the 'vendor' directory is special and its contents will be actively maintained by the go command. pygments aren't the dependency the go will know about, so it will delete the contents from vendor directory. Move it to `third_party` directory now. And, vendor the blackfriday package. Note: the tutorial contents are not affected by the change in go1.16 because all the examples in this tutorial ask users to run the go command with the explicit list of files to be compiled (e.g. `go run hello-world.go` or `go build command-line-arguments.go`). When the source list is provided, the go command does not have to compute the build list and whether it's running in GOPATH mode or module mode becomes irrelevant.
186 lines
2.4 KiB
R
186 lines
2.4 KiB
R
#!/usr/bin/env Rscript
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### Example R script for syntax highlighting
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# This is also a comment
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## Valid names
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abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV0123456789._a <- NULL
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.foo_ <- NULL
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._foo <- NULL
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## Invalid names
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0abc <- NULL
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.0abc <- NULL
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abc+cde <- NULL
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## Reserved Words
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NA
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NA_integer_
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NA_real_
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NA_character_
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NA_complex_
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NULL
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NaN
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Inf
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## Not reserved
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NULLa <- NULL
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NULL1 <- NULL
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NULL. <- NULL
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NA_foo_ <- NULL
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## Numbers
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12345678901
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123456.78901
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123e3
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123E3
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6.02e23
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1.6e-35
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1.E12
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.1234
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## integers
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123L
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1.23L
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## imaginary numbers
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123i
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-123i
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123e4i
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123e-4i
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## Hex numbers
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0xabcdefABCDEF01234
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0xabcp123
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0xabcP123
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## Not hex
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0xg
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## Special operators %xyz%
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## %xyz%
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1 %% 2
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diag(2) %*% diag(2)
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1 %/% 2
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1 %in% 1:10
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diag(2) %o% diag(2)
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diag(2) %x% diag(2)
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`%foo bar%` <- function(x, y) x + y
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1 %foo bar% 2
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## Control Structures (3.2) and Function
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## if, else
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if (TRUE) print("foo") else print("bar")
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## For, in
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for(i in 1:5) {
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print(i)
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}
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## While, break
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i <- 1
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while (TRUE) {
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i <- i + 1
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if (i > 3) break
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}
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## Repeat
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repeat {1+1}
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## Switch
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x <- 3
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switch(x, 2+2, mean(1:10), rnorm(5))
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## Function, dot-dot-dot, return, sum
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foo <- function(...) {
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return(sum(...))
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}
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# Not keywords
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functiona <- 2 + 2
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function. <- 2 + 2
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function1 <- 2 + 2
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## Grouping Tokens 10.3.7
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## Parentheses
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1 + (2 + 3)
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## brackets
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foo <- function(a) {
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a + 1
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}
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## Indexing 10.3.8
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## []
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bar <- 1:10
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bar[3]
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## [[]]
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foo <- list(a=1, b=2, c=3)
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foo[["a"]]
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## $
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foo$a
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foo$"a"
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## Operators
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2 - 2
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2 + 2
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2 ~ 2
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! TRUE
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?"help"
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1:2
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2 * 2
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2 / 2
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2^2
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2 < 2
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2 > 2
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2 == 2
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2 >= 2
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2 <= 2
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2 != 2
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TRUE & FALSE
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TRUE && FALSE
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TRUE | FALSE
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TRUE || FALSE
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foo <- 2 + 2
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foo = 2 + 2
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2 + 2 -> foo
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foo <<- 2 + 2
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2 + 2 ->> foo
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base:::sum
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base::sum
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## Strings
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foo <- "hello, world!"
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foo <- 'hello, world!'
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foo <- "Hello, 'world!"
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foo <- 'Hello, "world!'
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foo <- 'Hello, \'world!\''
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foo <- "Hello, \"world!\""
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foo <- "Hello,
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world!"
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foo <- 'Hello,
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world!'
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## Backtick strings
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`foo123 +!"bar'baz` <- 2 + 2
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## Builtin funcitons
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file.create()
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gamma()
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grep()
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paste()
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rbind()
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rownames()
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R.Version()
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R.version.string()
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sample()
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sapply()
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save.image()
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seq()
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setwd()
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sin()
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## Data structures
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servo <- matrix(1:25, nrow = 5)
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numeric()
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vector(servo)
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data.frame()
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list1 <- list(time = 1:40)
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# multidimensional array
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array(c(c(c(2,300,4),c(8,9,0)),c(c(5,60,0),c(66,7,847))), dim=c(3,2,2))
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## Namespace
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library(ggplot2)
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require(plyr)
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attach(cars)
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source("test.R")
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