| 1 | 'use strict'
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| 2 |
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| 3 | let pico = require('picocolors')
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| 4 |
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| 5 | let tokenizer = require('./tokenize')
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| 6 |
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| 7 | let Input
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| 8 |
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| 9 | function registerInput(dependant) {
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| 10 | Input = dependant
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| 11 | }
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| 12 |
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| 13 | const HIGHLIGHT_THEME = {
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| 14 | 'brackets': pico.cyan,
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| 15 | 'at-word': pico.cyan,
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| 16 | 'comment': pico.gray,
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| 17 | 'string': pico.green,
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| 18 | 'class': pico.yellow,
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| 19 | 'hash': pico.magenta,
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| 20 | 'call': pico.cyan,
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| 21 | '(': pico.cyan,
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| 22 | ')': pico.cyan,
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| 23 | '{': pico.yellow,
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| 24 | '}': pico.yellow,
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| 25 | '[': pico.yellow,
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| 26 | ']': pico.yellow,
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| 27 | ':': pico.yellow,
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| 28 | ';': pico.yellow
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| 29 | }
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| 30 |
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| 31 | function getTokenType([type, value], processor) {
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| 32 | if (type === 'word') {
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| 33 | if (value[0] === '.') {
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| 34 | return 'class'
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| 35 | }
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| 36 | if (value[0] === '#') {
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| 37 | return 'hash'
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| 38 | }
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| 39 | }
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| 40 |
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| 41 | if (!processor.endOfFile()) {
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| 42 | let next = processor.nextToken()
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| 43 | processor.back(next)
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| 44 | if (next[0] === 'brackets' || next[0] === '(') return 'call'
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| 45 | }
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| 46 |
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| 47 | return type
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| 48 | }
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| 49 |
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| 50 | function terminalHighlight(css) {
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| 51 | let processor = tokenizer(new Input(css), { ignoreErrors: true })
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| 52 | let result = ''
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| 53 | while (!processor.endOfFile()) {
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| 54 | let token = processor.nextToken()
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| 55 | let color = HIGHLIGHT_THEME[getTokenType(token, processor)]
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| 56 | if (color) {
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| 57 | result += token[1]
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| 58 | .split(/\r?\n/)
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| 59 | .map(i => color(i))
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| 60 | .join('\n')
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| 61 | } else {
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| 62 | result += token[1]
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| 63 | }
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| 64 | }
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| 65 | return result
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| 66 | }
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| 67 |
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| 68 | terminalHighlight.registerInput = registerInput
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| 69 |
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| 70 | module.exports = terminalHighlight
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