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124 lines
2.3 KiB
Markdown
124 lines
2.3 KiB
Markdown
# ansi
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Package ansi is a small, fast library to create ANSI colored strings and codes.
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## Install
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Get it
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```sh
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go get -u github.com/mgutz/ansi
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```
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## Example
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```go
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import "github.com/mgutz/ansi"
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// colorize a string, SLOW
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msg := ansi.Color("foo", "red+b:white")
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// create a FAST closure function to avoid computation of ANSI code
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phosphorize := ansi.ColorFunc("green+h:black")
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msg = phosphorize("Bring back the 80s!")
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msg2 := phospohorize("Look, I'm a CRT!")
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// cache escape codes and build strings manually
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lime := ansi.ColorCode("green+h:black")
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reset := ansi.ColorCode("reset")
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fmt.Println(lime, "Bring back the 80s!", reset)
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```
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Other examples
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```go
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Color(s, "red") // red
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Color(s, "red+d") // red dim
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Color(s, "red+b") // red bold
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Color(s, "red+B") // red blinking
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Color(s, "red+u") // red underline
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Color(s, "red+bh") // red bold bright
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Color(s, "red:white") // red on white
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Color(s, "red+b:white+h") // red bold on white bright
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Color(s, "red+B:white+h") // red blink on white bright
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Color(s, "off") // turn off ansi codes
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```
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To view color combinations, from project directory in terminal.
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```sh
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go test
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```
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## Style format
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```go
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"foregroundColor+attributes:backgroundColor+attributes"
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```
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Colors
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* black
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* red
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* green
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* yellow
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* blue
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* magenta
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* cyan
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* white
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* 0...255 (256 colors)
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Foreground Attributes
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* B = Blink
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* b = bold
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* h = high intensity (bright)
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* d = dim
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* i = inverse
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* s = strikethrough
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* u = underline
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Background Attributes
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* h = high intensity (bright)
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## Constants
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* ansi.Reset
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* ansi.DefaultBG
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* ansi.DefaultFG
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* ansi.Black
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* ansi.Red
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* ansi.Green
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* ansi.Yellow
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* ansi.Blue
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* ansi.Magenta
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* ansi.Cyan
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* ansi.White
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* ansi.LightBlack
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* ansi.LightRed
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* ansi.LightGreen
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* ansi.LightYellow
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* ansi.LightBlue
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* ansi.LightMagenta
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* ansi.LightCyan
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* ansi.LightWhite
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## References
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Wikipedia ANSI escape codes [Colors](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors)
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General [tips and formatting](http://misc.flogisoft.com/bash/tip_colors_and_formatting)
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What about support on Windows? Use [colorable by mattn](https://github.com/mattn/go-colorable).
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Ansi and colorable are used by [logxi](https://github.com/mgutz/logxi) to support logging in
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color on Windows.
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## MIT License
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Copyright (c) 2013 Mario Gutierrez mario@mgutz.com
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See the file LICENSE for copying permission.
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