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static/js/ketcher2/node_modules/xpath/docs/parsed expressions.md

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+# Using Parsed Expressions
+
+The `xpath.parse()` method allows pre-parsing an XPath expression and creating an XPath executor to evaluate the XPath as many times as needed.
+
+This can provide a performance benefit if you plan to evaluate the same XPath multiple times because the expression only needs to be parsed once.
+
+This also provides access to additional features such as the use of variables and custom XPath functinos, which are not available using the evaluation methods on the `xpath` object.
+
+#### xpath.parse(expression)
+
+Parses the specified XPath expression and returns an `XPathEvaluator`. See the [documentation page](XPathEvaluator.md) for API details.
+
+`expression` should be a string.
+
+Example usage:
+
+```js
+var evaluator = xpath.parse('/book/characters');
+```
+
+