File size: 5,905 Bytes
bc20498 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 |
'use strict';
const isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
/* eslint-disable no-control-regex */
// this is a modified version of https://github.com/chalk/ansi-regex (MIT License)
const ANSI_REGEX = /[\u001b\u009b][[\]#;?()]*(?:(?:(?:[^\W_]*;?[^\W_]*)\u0007)|(?:(?:[0-9]{1,4}(;[0-9]{0,4})*)?[~0-9=<>cf-nqrtyA-PRZ]))/g;
const hasColor = () => {
if (typeof process !== 'undefined') {
return process.env.FORCE_COLOR !== '0';
}
return false;
};
const create = () => {
const colors = {
enabled: hasColor(),
visible: true,
styles: {},
keys: {}
};
const ansi = style => {
let open = style.open = `\u001b[${style.codes[0]}m`;
let close = style.close = `\u001b[${style.codes[1]}m`;
let regex = style.regex = new RegExp(`\\u001b\\[${style.codes[1]}m`, 'g');
style.wrap = (input, newline) => {
if (input.includes(close)) input = input.replace(regex, close + open);
let output = open + input + close;
// see https://github.com/chalk/chalk/pull/92, thanks to the
// chalk contributors for this fix. However, we've confirmed that
// this issue is also present in Windows terminals
return newline ? output.replace(/\r*\n/g, `${close}$&${open}`) : output;
};
return style;
};
const wrap = (style, input, newline) => {
return typeof style === 'function' ? style(input) : style.wrap(input, newline);
};
const style = (input, stack) => {
if (input === '' || input == null) return '';
if (colors.enabled === false) return input;
if (colors.visible === false) return '';
let str = '' + input;
let nl = str.includes('\n');
let n = stack.length;
if (n > 0 && stack.includes('unstyle')) {
stack = [...new Set(['unstyle', ...stack])].reverse();
}
while (n-- > 0) str = wrap(colors.styles[stack[n]], str, nl);
return str;
};
const define = (name, codes, type) => {
colors.styles[name] = ansi({ name, codes });
let keys = colors.keys[type] || (colors.keys[type] = []);
keys.push(name);
Reflect.defineProperty(colors, name, {
configurable: true,
enumerable: true,
set(value) {
colors.alias(name, value);
},
get() {
let color = input => style(input, color.stack);
Reflect.setPrototypeOf(color, colors);
color.stack = this.stack ? this.stack.concat(name) : [name];
return color;
}
});
};
define('reset', [0, 0], 'modifier');
define('bold', [1, 22], 'modifier');
define('dim', [2, 22], 'modifier');
define('italic', [3, 23], 'modifier');
define('underline', [4, 24], 'modifier');
define('inverse', [7, 27], 'modifier');
define('hidden', [8, 28], 'modifier');
define('strikethrough', [9, 29], 'modifier');
define('black', [30, 39], 'color');
define('red', [31, 39], 'color');
define('green', [32, 39], 'color');
define('yellow', [33, 39], 'color');
define('blue', [34, 39], 'color');
define('magenta', [35, 39], 'color');
define('cyan', [36, 39], 'color');
define('white', [37, 39], 'color');
define('gray', [90, 39], 'color');
define('grey', [90, 39], 'color');
define('bgBlack', [40, 49], 'bg');
define('bgRed', [41, 49], 'bg');
define('bgGreen', [42, 49], 'bg');
define('bgYellow', [43, 49], 'bg');
define('bgBlue', [44, 49], 'bg');
define('bgMagenta', [45, 49], 'bg');
define('bgCyan', [46, 49], 'bg');
define('bgWhite', [47, 49], 'bg');
define('blackBright', [90, 39], 'bright');
define('redBright', [91, 39], 'bright');
define('greenBright', [92, 39], 'bright');
define('yellowBright', [93, 39], 'bright');
define('blueBright', [94, 39], 'bright');
define('magentaBright', [95, 39], 'bright');
define('cyanBright', [96, 39], 'bright');
define('whiteBright', [97, 39], 'bright');
define('bgBlackBright', [100, 49], 'bgBright');
define('bgRedBright', [101, 49], 'bgBright');
define('bgGreenBright', [102, 49], 'bgBright');
define('bgYellowBright', [103, 49], 'bgBright');
define('bgBlueBright', [104, 49], 'bgBright');
define('bgMagentaBright', [105, 49], 'bgBright');
define('bgCyanBright', [106, 49], 'bgBright');
define('bgWhiteBright', [107, 49], 'bgBright');
colors.ansiRegex = ANSI_REGEX;
colors.hasColor = colors.hasAnsi = str => {
colors.ansiRegex.lastIndex = 0;
return typeof str === 'string' && str !== '' && colors.ansiRegex.test(str);
};
colors.alias = (name, color) => {
let fn = typeof color === 'string' ? colors[color] : color;
if (typeof fn !== 'function') {
throw new TypeError('Expected alias to be the name of an existing color (string) or a function');
}
if (!fn.stack) {
Reflect.defineProperty(fn, 'name', { value: name });
colors.styles[name] = fn;
fn.stack = [name];
}
Reflect.defineProperty(colors, name, {
configurable: true,
enumerable: true,
set(value) {
colors.alias(name, value);
},
get() {
let color = input => style(input, color.stack);
Reflect.setPrototypeOf(color, colors);
color.stack = this.stack ? this.stack.concat(fn.stack) : fn.stack;
return color;
}
});
};
colors.theme = custom => {
if (!isObject(custom)) throw new TypeError('Expected theme to be an object');
for (let name of Object.keys(custom)) {
colors.alias(name, custom[name]);
}
return colors;
};
colors.alias('unstyle', str => {
if (typeof str === 'string' && str !== '') {
colors.ansiRegex.lastIndex = 0;
return str.replace(colors.ansiRegex, '');
}
return '';
});
colors.alias('noop', str => str);
colors.none = colors.clear = colors.noop;
colors.stripColor = colors.unstyle;
colors.symbols = require('./symbols');
colors.define = define;
return colors;
};
module.exports = create();
module.exports.create = create;
|