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node_modules/postcss/lib/list.js 1.2 KB
7820380e   “wangming”   1
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  'use strict'
  
  let list = {
    comma(string) {
      return list.split(string, [','], true)
    },
  
    space(string) {
      let spaces = [' ', '\n', '\t']
      return list.split(string, spaces)
    },
  
    split(string, separators, last) {
      let array = []
      let current = ''
      let split = false
  
      let func = 0
      let inQuote = false
      let prevQuote = ''
      let escape = false
  
      for (let letter of string) {
        if (escape) {
          escape = false
        } else if (letter === '\\') {
          escape = true
        } else if (inQuote) {
          if (letter === prevQuote) {
            inQuote = false
          }
        } else if (letter === '"' || letter === "'") {
          inQuote = true
          prevQuote = letter
        } else if (letter === '(') {
          func += 1
        } else if (letter === ')') {
          if (func > 0) func -= 1
        } else if (func === 0) {
          if (separators.includes(letter)) split = true
        }
  
        if (split) {
          if (current !== '') array.push(current.trim())
          current = ''
          split = false
        } else {
          current += letter
        }
      }
  
      if (last || current !== '') array.push(current.trim())
      return array
    }
  }
  
  module.exports = list
  list.default = list