mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-01 07:47:49 +00:00
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
import memoizeCapped from './memoizeCapped.js'
|
|
|
|
/** Used to match property names within property paths. */
|
|
const reLeadingDot = /^\./
|
|
|
|
const rePropName = RegExp([
|
|
// Match anything that isn't a dot or bracket.
|
|
'[^.[\\]]+',
|
|
// Or match property names within brackets.
|
|
'\\[(?:' +
|
|
// Match numbers.
|
|
'(-?\\d+(?:\\.\\d+)?)' + '|' +
|
|
// Or match strings (supports escaping quotation marks).
|
|
'(["\'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2' +
|
|
')\\]',
|
|
// Or match "" as the space between consecutive dots or empty brackets.
|
|
'(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))'
|
|
].join('|'), 'g')
|
|
|
|
/** Used to match backslashes in property paths. */
|
|
const reEscapeChar = /\\(\\)?/g
|
|
|
|
/**
|
|
* Converts `string` to a property path array.
|
|
*
|
|
* @private
|
|
* @param {string} string The string to convert.
|
|
* @returns {Array} Returns the property path array.
|
|
*/
|
|
const stringToPath = memoizeCapped(string => {
|
|
const result = []
|
|
if (reLeadingDot.test(string)) {
|
|
result.push('')
|
|
}
|
|
string.replace(rePropName, (match, number, quote, string) => {
|
|
result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match))
|
|
})
|
|
return result
|
|
})
|
|
|
|
export default stringToPath
|