| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | 'use strict'; |
| 2 | |
| 3 | const wrapAnsi16 = (fn, offset) => (...args) => { |
| 4 | const code = fn(...args); |
| 5 | return `\u001B[${code + offset}m`; |
| 6 | }; |
| 7 | |
| 8 | const wrapAnsi256 = (fn, offset) => (...args) => { |
| 9 | const code = fn(...args); |
| 10 | return `\u001B[${38 + offset};5;${code}m`; |
| 11 | }; |
| 12 | |
| 13 | const wrapAnsi16m = (fn, offset) => (...args) => { |
| 14 | const rgb = fn(...args); |
| 15 | return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`; |
| 16 | }; |
| 17 | |
| 18 | const ansi2ansi = n => n; |
| 19 | const rgb2rgb = (r, g, b) => [r, g, b]; |
| 20 | |
| 21 | const setLazyProperty = (object, property, get) => { |
| 22 | Object.defineProperty(object, property, { |
| 23 | get: () => { |
| 24 | const value = get(); |
| 25 | |
| 26 | Object.defineProperty(object, property, { |
| 27 | value, |
| 28 | enumerable: true, |
| 29 | configurable: true |
| 30 | }); |
| 31 | |
| 32 | return value; |
| 33 | }, |
| 34 | enumerable: true, |
| 35 | configurable: true |
| 36 | }); |
| 37 | }; |
| 38 | |
| 39 | /** @type {typeof import('color-convert')} */ |
| 40 | let colorConvert; |
| 41 | const makeDynamicStyles = (wrap, targetSpace, identity, isBackground) => { |
| 42 | if (colorConvert === undefined) { |
| 43 | colorConvert = require('color-convert'); |
| 44 | } |
| 45 | |
| 46 | const offset = isBackground ? 10 : 0; |
| 47 | const styles = {}; |
| 48 | |
| 49 | for (const [sourceSpace, suite] of Object.entries(colorConvert)) { |
| 50 | const name = sourceSpace === 'ansi16' ? 'ansi' : sourceSpace; |
| 51 | if (sourceSpace === targetSpace) { |
| 52 | styles[name] = wrap(identity, offset); |
| 53 | } else if (typeof suite === 'object') { |
| 54 | styles[name] = wrap(suite[targetSpace], offset); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | return styles; |
| 59 | }; |
| 60 | |
| 61 | function assembleStyles() { |
| 62 | const codes = new Map(); |
| 63 | const styles = { |
| 64 | modifier: { |
| 65 | reset: [0, 0], |
| 66 | // 21 isn't widely supported and 22 does the same thing |
| 67 | bold: [1, 22], |
| 68 | dim: [2, 22], |
| 69 | italic: [3, 23], |
| 70 | underline: [4, 24], |
| 71 | inverse: [7, 27], |
| 72 | hidden: [8, 28], |
| 73 | strikethrough: [9, 29] |
| 74 | }, |
| 75 | color: { |
| 76 | black: [30, 39], |
| 77 | red: [31, 39], |
| 78 | green: [32, 39], |
| 79 | yellow: [33, 39], |
| 80 | blue: [34, 39], |
| 81 | magenta: [35, 39], |
| 82 | cyan: [36, 39], |
| 83 | white: [37, 39], |
| 84 | |
| 85 | // Bright color |
| 86 | blackBright: [90, 39], |
| 87 | redBright: [91, 39], |
| 88 | greenBright: [92, 39], |
| 89 | yellowBright: [93, 39], |
| 90 | blueBright: [94, 39], |
| 91 | magentaBright: [95, 39], |
| 92 | cyanBright: [96, 39], |
| 93 | whiteBright: [97, 39] |
| 94 | }, |
| 95 | bgColor: { |
| 96 | bgBlack: [40, 49], |
| 97 | bgRed: [41, 49], |
| 98 | bgGreen: [42, 49], |
| 99 | bgYellow: [43, 49], |
| 100 | bgBlue: [44, 49], |
| 101 | bgMagenta: [45, 49], |
| 102 | bgCyan: [46, 49], |
| 103 | bgWhite: [47, 49], |
| 104 | |
| 105 | // Bright color |
| 106 | bgBlackBright: [100, 49], |
| 107 | bgRedBright: [101, 49], |
| 108 | bgGreenBright: [102, 49], |
| 109 | bgYellowBright: [103, 49], |
| 110 | bgBlueBright: [104, 49], |
| 111 | bgMagentaBright: [105, 49], |
| 112 | bgCyanBright: [106, 49], |
| 113 | bgWhiteBright: [107, 49] |
| 114 | } |
| 115 | }; |
| 116 | |
| 117 | // Alias bright black as gray (and grey) |
| 118 | styles.color.gray = styles.color.blackBright; |
| 119 | styles.bgColor.bgGray = styles.bgColor.bgBlackBright; |
| 120 | styles.color.grey = styles.color.blackBright; |
| 121 | styles.bgColor.bgGrey = styles.bgColor.bgBlackBright; |
| 122 | |
| 123 | for (const [groupName, group] of Object.entries(styles)) { |
| 124 | for (const [styleName, style] of Object.entries(group)) { |
| 125 | styles[styleName] = { |
| 126 | open: `\u001B[${style[0]}m`, |
| 127 | close: `\u001B[${style[1]}m` |
| 128 | }; |
| 129 | |
| 130 | group[styleName] = styles[styleName]; |
| 131 | |
| 132 | codes.set(style[0], style[1]); |
| 133 | } |
| 134 | |
| 135 | Object.defineProperty(styles, groupName, { |
| 136 | value: group, |
| 137 | enumerable: false |
| 138 | }); |
| 139 | } |
| 140 | |
| 141 | Object.defineProperty(styles, 'codes', { |
| 142 | value: codes, |
| 143 | enumerable: false |
| 144 | }); |
| 145 | |
| 146 | styles.color.close = '\u001B[39m'; |
| 147 | styles.bgColor.close = '\u001B[49m'; |
| 148 | |
| 149 | setLazyProperty(styles.color, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, false)); |
| 150 | setLazyProperty(styles.color, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, false)); |
| 151 | setLazyProperty(styles.color, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, false)); |
| 152 | setLazyProperty(styles.bgColor, 'ansi', () => makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, true)); |
| 153 | setLazyProperty(styles.bgColor, 'ansi256', () => makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, true)); |
| 154 | setLazyProperty(styles.bgColor, 'ansi16m', () => makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, true)); |
| 155 | |
| 156 | return styles; |
| 157 | } |
| 158 | |
| 159 | // Make the export immutable |
| 160 | Object.defineProperty(module, 'exports', { |
| 161 | enumerable: true, |
| 162 | get: assembleStyles |
| 163 | }); |