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163 lines
4.0 KiB
163 lines
4.0 KiB
'use strict';
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const wrapAnsi16 = (fn, offset) => (...args) => {
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const code = fn(...args);
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return `\u001B[${code + offset}m`;
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};
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const wrapAnsi256 = (fn, offset) => (...args) => {
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const code = fn(...args);
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return `\u001B[${38 + offset};5;${code}m`;
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};
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const wrapAnsi16m = (fn, offset) => (...args) => {
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const rgb = fn(...args);
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return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
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};
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const ansi2ansi = n => n;
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const rgb2rgb = (r, g, b) => [r, g, b];
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const setLazyProperty = (object, property, get) => {
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Object.defineProperty(object, property, {
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get: () => {
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const value = get();
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Object.defineProperty(object, property, {
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value,
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enumerable: true,
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configurable: true
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});
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return value;
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},
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enumerable: true,
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configurable: true
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});
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};
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/** @type {typeof import('color-convert')} */
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let colorConvert;
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const makeDynamicStyles = (wrap, targetSpace, identity, isBackground) => {
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if (colorConvert === undefined) {
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colorConvert = require('color-convert');
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}
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const offset = isBackground ? 10 : 0;
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const styles = {};
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for (const [sourceSpace, suite] of Object.entries(colorConvert)) {
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const name = sourceSpace === 'ansi16' ? 'ansi' : sourceSpace;
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if (sourceSpace === targetSpace) {
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styles[name] = wrap(identity, offset);
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} else if (typeof suite === 'object') {
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styles[name] = wrap(suite[targetSpace], offset);
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}
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}
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return styles;
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};
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function assembleStyles() {
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const codes = new Map();
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const styles = {
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modifier: {
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reset: [0, 0],
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// 21 isn't widely supported and 22 does the same thing
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bold: [1, 22],
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dim: [2, 22],
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italic: [3, 23],
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underline: [4, 24],
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inverse: [7, 27],
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hidden: [8, 28],
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strikethrough: [9, 29]
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},
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color: {
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black: [30, 39],
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red: [31, 39],
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green: [32, 39],
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yellow: [33, 39],
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blue: [34, 39],
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magenta: [35, 39],
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cyan: [36, 39],
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white: [37, 39],
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// Bright color
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blackBright: [90, 39],
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redBright: [91, 39],
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greenBright: [92, 39],
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yellowBright: [93, 39],
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blueBright: [94, 39],
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magentaBright: [95, 39],
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cyanBright: [96, 39],
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whiteBright: [97, 39]
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},
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bgColor: {
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bgBlack: [40, 49],
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bgRed: [41, 49],
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bgGreen: [42, 49],
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bgYellow: [43, 49],
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bgBlue: [44, 49],
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bgMagenta: [45, 49],
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bgCyan: [46, 49],
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bgWhite: [47, 49],
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// Bright color
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bgBlackBright: [100, 49],
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bgRedBright: [101, 49],
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bgGreenBright: [102, 49],
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bgYellowBright: [103, 49],
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bgBlueBright: [104, 49],
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bgMagentaBright: [105, 49],
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bgCyanBright: [106, 49],
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bgWhiteBright: [107, 49]
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}
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};
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// Alias bright black as gray (and grey)
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styles.color.gray = styles.color.blackBright;
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styles.bgColor.bgGray = styles.bgColor.bgBlackBright;
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styles.color.grey = styles.color.blackBright;
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styles.bgColor.bgGrey = styles.bgColor.bgBlackBright;
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for (const [groupName, group] of Object.entries(styles)) {
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for (const [styleName, style] of Object.entries(group)) {
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styles[styleName] = {
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open: `\u001B[${style[0]}m`,
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close: `\u001B[${style[1]}m`
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};
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group[styleName] = styles[styleName];
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codes.set(style[0], style[1]);
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}
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Object.defineProperty(styles, groupName, {
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value: group,
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enumerable: false
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});
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}
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Object.defineProperty(styles, 'codes', {
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value: codes,
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enumerable: false
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});
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styles.color.close = '\u001B[39m';
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styles.bgColor.close = '\u001B[49m';
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setLazyProperty(styles.color, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, false));
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setLazyProperty(styles.color, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, false));
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setLazyProperty(styles.color, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, false));
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setLazyProperty(styles.bgColor, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, true));
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setLazyProperty(styles.bgColor, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, true));
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setLazyProperty(styles.bgColor, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, true));
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return styles;
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}
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// Make the export immutable
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Object.defineProperty(module, 'exports', {
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enumerable: true,
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get: assembleStyles
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});
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