escape.js 648 B

12345678910111213141516171819202122232425262728293031323334
  1. 'use strict'
  2. var locate = require('../locate/escape')
  3. module.exports = escape
  4. escape.locator = locate
  5. var lineFeed = '\n'
  6. var backslash = '\\'
  7. function escape(eat, value, silent) {
  8. var self = this
  9. var character
  10. var node
  11. if (value.charAt(0) === backslash) {
  12. character = value.charAt(1)
  13. if (self.escape.indexOf(character) !== -1) {
  14. /* istanbul ignore if - never used (yet) */
  15. if (silent) {
  16. return true
  17. }
  18. if (character === lineFeed) {
  19. node = {type: 'break'}
  20. } else {
  21. node = {type: 'text', value: character}
  22. }
  23. return eat(backslash + character)(node)
  24. }
  25. }
  26. }