71 lines
1.3 KiB
JavaScript
71 lines
1.3 KiB
JavaScript
'use strict'
|
|
|
|
let { cyan, gray, green, yellow, magenta } = require('colorette')
|
|
|
|
let tokenizer = require('./tokenize')
|
|
|
|
let Input
|
|
|
|
function registerInput(dependant) {
|
|
Input = dependant
|
|
}
|
|
|
|
const HIGHLIGHT_THEME = {
|
|
'brackets': cyan,
|
|
'at-word': cyan,
|
|
'comment': gray,
|
|
'string': green,
|
|
'class': yellow,
|
|
'hash': magenta,
|
|
'call': cyan,
|
|
'(': cyan,
|
|
')': cyan,
|
|
'{': yellow,
|
|
'}': yellow,
|
|
'[': yellow,
|
|
']': yellow,
|
|
':': yellow,
|
|
';': yellow
|
|
}
|
|
|
|
function getTokenType([type, value], processor) {
|
|
if (type === 'word') {
|
|
if (value[0] === '.') {
|
|
return 'class'
|
|
}
|
|
if (value[0] === '#') {
|
|
return 'hash'
|
|
}
|
|
}
|
|
|
|
if (!processor.endOfFile()) {
|
|
let next = processor.nextToken()
|
|
processor.back(next)
|
|
if (next[0] === 'brackets' || next[0] === '(') return 'call'
|
|
}
|
|
|
|
return type
|
|
}
|
|
|
|
function terminalHighlight(css) {
|
|
let processor = tokenizer(new Input(css), { ignoreErrors: true })
|
|
let result = ''
|
|
while (!processor.endOfFile()) {
|
|
let token = processor.nextToken()
|
|
let color = HIGHLIGHT_THEME[getTokenType(token, processor)]
|
|
if (color) {
|
|
result += token[1]
|
|
.split(/\r?\n/)
|
|
.map(i => color(i))
|
|
.join('\n')
|
|
} else {
|
|
result += token[1]
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
terminalHighlight.registerInput = registerInput
|
|
|
|
module.exports = terminalHighlight
|