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147 lines
3.6 KiB
Markdown
147 lines
3.6 KiB
Markdown
# ansi-styles [](https://travis-ci.org/chalk/ansi-styles)
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> [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles) for styling strings in the terminal
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You probably want the higher-level [chalk](https://github.com/chalk/chalk) module for styling your strings.
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<img src="https://cdn.rawgit.com/chalk/ansi-styles/8261697c95bf34b6c7767e2cbe9941a851d59385/screenshot.svg" width="900">
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## Install
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```
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$ npm install ansi-styles
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```
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## Usage
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```js
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const style = require('ansi-styles');
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console.log(`${style.green.open}Hello world!${style.green.close}`);
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// Color conversion between 16/256/truecolor
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// NOTE: If conversion goes to 16 colors or 256 colors, the original color
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// may be degraded to fit that color palette. This means terminals
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// that do not support 16 million colors will best-match the
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// original color.
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console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close);
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console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close);
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console.log(style.color.ansi16m.hex('#ABCDEF') + 'Hello world!' + style.color.close);
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```
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## API
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Each style has an `open` and `close` property.
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## Styles
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### Modifiers
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- `reset`
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- `bold`
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- `dim`
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- `italic` *(Not widely supported)*
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- `underline`
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- `inverse`
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- `hidden`
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- `strikethrough` *(Not widely supported)*
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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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- `gray` ("bright black")
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- `redBright`
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- `greenBright`
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- `yellowBright`
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- `blueBright`
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- `magentaBright`
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- `cyanBright`
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- `whiteBright`
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### Background colors
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- `bgBlack`
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- `bgRed`
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- `bgGreen`
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- `bgYellow`
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- `bgBlue`
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- `bgMagenta`
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- `bgCyan`
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- `bgWhite`
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- `bgBlackBright`
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- `bgRedBright`
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- `bgGreenBright`
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- `bgYellowBright`
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- `bgBlueBright`
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- `bgMagentaBright`
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- `bgCyanBright`
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- `bgWhiteBright`
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## Advanced usage
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By default, you get a map of styles, but the styles are also available as groups. They are non-enumerable so they don't show up unless you access them explicitly. This makes it easier to expose only a subset in a higher-level module.
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- `style.modifier`
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- `style.color`
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- `style.bgColor`
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###### Example
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```js
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console.log(style.color.green.open);
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```
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Raw escape codes (i.e. without the CSI escape prefix `\u001B[` and render mode postfix `m`) are available under `style.codes`, which returns a `Map` with the open codes as keys and close codes as values.
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###### Example
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```js
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console.log(style.codes.get(36));
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//=> 39
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```
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## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728)
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`ansi-styles` uses the [`color-convert`](https://github.com/Qix-/color-convert) package to allow for converting between various colors and ANSI escapes, with support for 256 and 16 million colors.
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To use these, call the associated conversion function with the intended output, for example:
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```js
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style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code
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style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code
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style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
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style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
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style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code
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style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code
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```
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## Related
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- [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal
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## Maintainers
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- [Sindre Sorhus](https://github.com/sindresorhus)
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- [Josh Junon](https://github.com/qix-)
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## License
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MIT
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