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105 lines
2.5 KiB
105 lines
2.5 KiB
4 years ago
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'use strict';
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const { FORCE_COLOR, NODE_DISABLE_COLORS, TERM } = process.env;
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const $ = {
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enabled: !NODE_DISABLE_COLORS && TERM !== 'dumb' && FORCE_COLOR !== '0',
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// modifiers
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reset: init(0, 0),
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bold: init(1, 22),
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dim: init(2, 22),
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italic: init(3, 23),
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underline: init(4, 24),
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inverse: init(7, 27),
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hidden: init(8, 28),
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strikethrough: init(9, 29),
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// colors
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black: init(30, 39),
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red: init(31, 39),
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green: init(32, 39),
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yellow: init(33, 39),
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blue: init(34, 39),
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magenta: init(35, 39),
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cyan: init(36, 39),
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white: init(37, 39),
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gray: init(90, 39),
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grey: init(90, 39),
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// background colors
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bgBlack: init(40, 49),
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bgRed: init(41, 49),
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bgGreen: init(42, 49),
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bgYellow: init(43, 49),
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bgBlue: init(44, 49),
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bgMagenta: init(45, 49),
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bgCyan: init(46, 49),
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bgWhite: init(47, 49)
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};
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function run(arr, str) {
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let i=0, tmp, beg='', end='';
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for (; i < arr.length; i++) {
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tmp = arr[i];
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beg += tmp.open;
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end += tmp.close;
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if (str.includes(tmp.close)) {
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str = str.replace(tmp.rgx, tmp.close + tmp.open);
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}
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}
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return beg + str + end;
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}
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function chain(has, keys) {
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let ctx = { has, keys };
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ctx.reset = $.reset.bind(ctx);
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ctx.bold = $.bold.bind(ctx);
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ctx.dim = $.dim.bind(ctx);
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ctx.italic = $.italic.bind(ctx);
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ctx.underline = $.underline.bind(ctx);
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ctx.inverse = $.inverse.bind(ctx);
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ctx.hidden = $.hidden.bind(ctx);
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ctx.strikethrough = $.strikethrough.bind(ctx);
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ctx.black = $.black.bind(ctx);
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ctx.red = $.red.bind(ctx);
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ctx.green = $.green.bind(ctx);
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ctx.yellow = $.yellow.bind(ctx);
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ctx.blue = $.blue.bind(ctx);
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ctx.magenta = $.magenta.bind(ctx);
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ctx.cyan = $.cyan.bind(ctx);
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ctx.white = $.white.bind(ctx);
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ctx.gray = $.gray.bind(ctx);
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ctx.grey = $.grey.bind(ctx);
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ctx.bgBlack = $.bgBlack.bind(ctx);
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ctx.bgRed = $.bgRed.bind(ctx);
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ctx.bgGreen = $.bgGreen.bind(ctx);
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ctx.bgYellow = $.bgYellow.bind(ctx);
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ctx.bgBlue = $.bgBlue.bind(ctx);
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ctx.bgMagenta = $.bgMagenta.bind(ctx);
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ctx.bgCyan = $.bgCyan.bind(ctx);
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ctx.bgWhite = $.bgWhite.bind(ctx);
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return ctx;
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}
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function init(open, close) {
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let blk = {
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open: `\x1b[${open}m`,
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close: `\x1b[${close}m`,
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rgx: new RegExp(`\\x1b\\[${close}m`, 'g')
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};
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return function (txt) {
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if (this !== void 0 && this.has !== void 0) {
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this.has.includes(open) || (this.has.push(open),this.keys.push(blk));
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return txt === void 0 ? this : $.enabled ? run(this.keys, txt+'') : txt+'';
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}
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return txt === void 0 ? chain([open], [blk]) : $.enabled ? run([blk], txt+'') : txt+'';
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};
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}
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module.exports = $;
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