96 lines
2.2 KiB
JavaScript
96 lines
2.2 KiB
JavaScript
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'use strict';
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var escapeStringRegexp = require('escape-string-regexp');
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var ansiStyles = require('ansi-styles');
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var stripAnsi = require('strip-ansi');
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var hasAnsi = require('has-ansi');
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var supportsColor = require('supports-color');
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var defineProps = Object.defineProperties;
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var chalk = module.exports;
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function build(_styles) {
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var builder = function builder() {
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return applyStyle.apply(builder, arguments);
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};
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builder._styles = _styles;
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// __proto__ is used because we must return a function, but there is
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// no way to create a function with a different prototype.
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builder.__proto__ = proto;
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return builder;
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}
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var styles = (function () {
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var ret = {};
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ansiStyles.grey = ansiStyles.gray;
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Object.keys(ansiStyles).forEach(function (key) {
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ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
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ret[key] = {
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get: function () {
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return build(this._styles.concat(key));
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}
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};
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});
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return ret;
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})();
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var proto = defineProps(function chalk() {}, styles);
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function applyStyle() {
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// support varags, but simply cast to string in case there's only one arg
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var args = arguments;
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var argsLen = args.length;
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var str = argsLen !== 0 && String(arguments[0]);
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if (argsLen > 1) {
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// don't slice `arguments`, it prevents v8 optimizations
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for (var a = 1; a < argsLen; a++) {
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str += ' ' + args[a];
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}
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}
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if (!chalk.enabled || !str) {
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return str;
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}
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/*jshint validthis: true*/
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var nestedStyles = this._styles;
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for (var i = 0; i < nestedStyles.length; i++) {
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var code = ansiStyles[nestedStyles[i]];
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// Replace any instances already present with a re-opening code
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// otherwise only the part of the string until said closing code
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// will be colored, and the rest will simply be 'plain'.
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str = code.open + str.replace(code.closeRe, code.open) + code.close;
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}
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return str;
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}
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function init() {
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var ret = {};
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Object.keys(styles).forEach(function (name) {
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ret[name] = {
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get: function () {
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return build([name]);
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}
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};
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});
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return ret;
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}
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defineProps(chalk, init());
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chalk.styles = ansiStyles;
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chalk.hasColor = hasAnsi;
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chalk.stripColor = stripAnsi;
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chalk.supportsColor = supportsColor;
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// detect mode if not set manually
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if (chalk.enabled === undefined) {
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chalk.enabled = chalk.supportsColor;
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}
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