45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
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// @ts-nocheck
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import memoizeCapped from "./memoizeCapped.js";
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const charCodeOfDot = ".".charCodeAt(0);
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const reEscapeChar = /\\(\\)?/g;
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const rePropName = RegExp(
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// Match anything that isn't a dot or bracket.
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"[^.[\\]]+" +
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"|" +
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// Or match property names within brackets.
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"\\[(?:" +
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// Match a non-string expression.
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"([^\"'][^[]*)" +
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"|" +
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// Or match strings (supports escaping characters).
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"([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2" +
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")\\]" +
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"|" +
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// Or match "" as the space between consecutive dots or empty brackets.
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"(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))", "g");
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/**
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* Converts `string` to a property path array.
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*
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* @private
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* @param {string} string The string to convert.
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* @returns {Array} Returns the property path array.
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*/
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const stringToPath = memoizeCapped((string) => {
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const result = [];
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if (string.charCodeAt(0) === charCodeOfDot) {
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result.push("");
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}
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string.replace(rePropName, (match, expression, quote, subString) => {
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let key = match;
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if (quote) {
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key = subString.replace(reEscapeChar, "$1");
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}
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else if (expression) {
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key = expression.trim();
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}
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result.push(key);
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});
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return result;
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});
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export default stringToPath;
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