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