shift73k/assets_old/node_modules/postcss/lib/terminal-highlight.js

70 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