'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;
|
var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);
|
|
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 (isSimpleWindowsTerm) {
|
ansiStyles.blue.open = '\u001b[94m';
|
}
|
|
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 build(_styles) {
|
var builder = function () {
|
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.
|
/* eslint-disable no-proto */
|
builder.__proto__ = proto;
|
|
return builder;
|
}
|
|
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;
|
}
|
|
var nestedStyles = this._styles;
|
var i = nestedStyles.length;
|
|
// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
|
// see https://github.com/chalk/chalk/issues/58
|
// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
|
var originalDim = ansiStyles.dim.open;
|
if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
|
ansiStyles.dim.open = '';
|
}
|
|
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;
|
}
|
|
// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
|
ansiStyles.dim.open = originalDim;
|
|
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;
|
