refactor: change implementation

Author: timdeschryver

src/matches.ts

@@ -56,7 +56,11 @@ function matches(
   if (matcher instanceof Function) {
     return matcher(normalizedText, node)
   } else if (matcher instanceof RegExp) {
-    return new RegExp(matcher).test(normalizedText)
+    const match = matcher.test(normalizedText)
+    if (matcher.global) {
+      matcher.lastIndex = 0
+    }
+    return match
   } else {
     return normalizedText === String(matcher)
   }