| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | var memoizeCapped = require('./_memoizeCapped'); |
| 2 | |
| 3 | /** Used to match property names within property paths. */ |
| 4 | var rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; |
| 5 | |
| 6 | /** Used to match backslashes in property paths. */ |
| 7 | var reEscapeChar = /\\(\\)?/g; |
| 8 | |
| 9 | /** |
| 10 | * Converts `string` to a property path array. |
| 11 | * |
| 12 | * @private |
| 13 | * @param {string} string The string to convert. |
| 14 | * @returns {Array} Returns the property path array. |
| 15 | */ |
| 16 | var stringToPath = memoizeCapped(function(string) { |
| 17 | var result = []; |
| 18 | if (string.charCodeAt(0) === 46 /* . */) { |
| 19 | result.push(''); |
| 20 | } |
| 21 | string.replace(rePropName, function(match, number, quote, subString) { |
| 22 | result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); |
| 23 | }); |
| 24 | return result; |
| 25 | }); |
| 26 | |
| 27 | module.exports = stringToPath; |