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Diffstat (limited to 'node_modules/chalk/index.js')
-rw-r--r-- | node_modules/chalk/index.js | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/node_modules/chalk/index.js b/node_modules/chalk/index.js new file mode 100644 index 000000000..4138a64dd --- /dev/null +++ b/node_modules/chalk/index.js @@ -0,0 +1,100 @@ +'use strict'; +var escapeStringRegexp = require('escape-string-regexp'); +var ansiStyles = require('ansi-styles'); +var stripAnsi = require('strip-ansi'); +var hasAnsi = require('has-ansi'); +var supportsColor = require('supports-color'); +var defineProps = Object.defineProperties; + +function Chalk(options) { + // detect mode if not set manually + this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled; +} + +// use bright blue on Windows as the normal blue color is illegible +if (process.platform === 'win32') { + ansiStyles.blue.open = '\u001b[94m'; +} + +function build(_styles) { + var builder = function builder() { + return applyStyle.apply(builder, arguments); + }; + builder._styles = _styles; + builder.enabled = this.enabled; + // __proto__ is used because we must return a function, but there is + // no way to create a function with a different prototype. + builder.__proto__ = proto; + return builder; +} + +var styles = (function () { + var ret = {}; + + Object.keys(ansiStyles).forEach(function (key) { + ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g'); + + ret[key] = { + get: function () { + return build.call(this, this._styles.concat(key)); + } + }; + }); + + return ret; +})(); + +var proto = defineProps(function chalk() {}, styles); + +function applyStyle() { + // support varags, but simply cast to string in case there's only one arg + var args = arguments; + var argsLen = args.length; + var str = argsLen !== 0 && String(arguments[0]); + if (argsLen > 1) { + // don't slice `arguments`, it prevents v8 optimizations + for (var a = 1; a < argsLen; a++) { + str += ' ' + args[a]; + } + } + + if (!this.enabled || !str) { + return str; + } + + /*jshint validthis: true */ + var nestedStyles = this._styles; + + var i = nestedStyles.length; + while (i--) { + var code = ansiStyles[nestedStyles[i]]; + // Replace any instances already present with a re-opening code + // otherwise only the part of the string until said closing code + // will be colored, and the rest will simply be 'plain'. + str = code.open + str.replace(code.closeRe, code.open) + code.close; + } + + return str; +} + +function init() { + var ret = {}; + + Object.keys(styles).forEach(function (name) { + ret[name] = { + get: function () { + return build.call(this, [name]); + } + }; + }); + + return ret; +} + +defineProps(Chalk.prototype, init()); + +module.exports = new Chalk(); +module.exports.styles = ansiStyles; +module.exports.hasColor = hasAnsi; +module.exports.stripColor = stripAnsi; +module.exports.supportsColor = supportsColor; |