Added PCRE2 support. (0.29.0)

examples/pcre2_showcase.fun

@@ -0,0 +1,32 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen <you@hanez.org>
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2025-11-25
+ */
+
+/*
+include <regex/pcre2.fun>
+
+re = PCRE2()
+
+print("Testing PCRE2 showcase...")
+
+print(re.test("\\d+", "Order #1234"))
+
+m = re.match("(\\w+)", "hello WORLD", re.i())
+if m != nil {
+  print(m["full"])      // hello
+  print(len(m["groups"]))
+}
+
+for x in re.find_all("[a-z]+", "One two THREE four", re.i()) {
+  print(x["full"]) // one two four
+}
+*/