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Author: timokoessler

library/helpers/escapeStringRegexp.ts

@@ -1,18 +1,24 @@
+let funcToExport: (string: string) => string;
+
 /**
  * Escape characters with special meaning either inside or outside character sets.
  *
  * Use a simple backslash escape when it’s always valid, and a `\xnn` escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
  *
  * Taken from https://github.com/sindresorhus/escape-string-regexp/
  */
-export function escapeStringRegexp(string: string) {
-  // Use native implementation if available (Node.js 24+)
-  // A benchmark showed that it is up to 50% faster than the polyfill
-  // @ts-expect-error Outdated Node.js types
-  if (typeof RegExp?.escape === "function") {
-    // @ts-expect-error Outdated Node.js types
-    return RegExp.escape(string);
-  }
-
+function escapeStringRegexpFallback(string: string) {
   return string.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&").replace(/-/g, "\\x2d");
 }
+
+// Use native implementation if available (Node.js 24+)
+// A benchmark showed that it is up to 50% faster than the polyfill
+// @ts-expect-error Outdated Node.js types
+if (typeof RegExp?.escape === "function") {
+  // @ts-expect-error Outdated Node.js types
+  funcToExport = RegExp.escape;
+} else {
+  funcToExport = escapeStringRegexpFallback;
+}
+
+export { funcToExport as escapeStringRegexp };