diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/remark-parse/lib/unescape.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/remark-parse/lib/unescape.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/remark-parse/lib/unescape.js b/tools/node_modules/eslint/node_modules/remark-parse/lib/unescape.js new file mode 100644 index 0000000000..dc83486126 --- /dev/null +++ b/tools/node_modules/eslint/node_modules/remark-parse/lib/unescape.js @@ -0,0 +1,46 @@ +/** + * @author Titus Wormer + * @copyright 2015 Titus Wormer + * @license MIT + * @module remark:parse:unescape + * @fileoverview Unescape escapes. + */ + +'use strict'; + +/* Expose. */ +module.exports = factory; + +/* Factory to de-escape a value, based on a list at `key` + * in `ctx`. */ +function factory(ctx, key) { + return unescape; + + /* De-escape a string using the expression at `key` + * in `ctx`. */ + function unescape(value) { + var prev = 0; + var index = value.indexOf('\\'); + var escape = ctx[key]; + var queue = []; + var character; + + while (index !== -1) { + queue.push(value.slice(prev, index)); + prev = index + 1; + character = value.charAt(prev); + + /* If the following character is not a valid escape, + * add the slash. */ + if (!character || escape.indexOf(character) === -1) { + queue.push('\\'); + } + + index = value.indexOf('\\', prev); + } + + queue.push(value.slice(prev)); + + return queue.join(''); + } +} |