Added PCRE2 support. (0.29.0)

lib/regex/pcre2.fun

@@ -0,0 +1,42 @@
+#!/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
+ */
+
+// PCRE2 stdlib abstraction wrapping VM pcre2_* builtins.
+// Provides a small class with flags and user-friendly methods.
+
+class PCRE2()
+  fun i(this)
+    return 1
+  fun m(this)
+    return 2
+  fun s(this)
+    return 4
+  fun u(this)
+    return 8
+  fun x(this)
+    return 16
+
+  fun test(this, pattern, text, flags)
+    if flags == nil
+      flags = this.u()
+    return pcre2_test(to_string(pattern), to_string(text), flags)
+
+  fun match(this, pattern, text, flags)
+    if flags == nil
+      flags = this.u()
+    return pcre2_match(to_string(pattern), to_string(text), flags)
+
+  fun find_all(this, pattern, text, flags)
+    if flags == nil
+      flags = this.u()
+    return pcre2_findall(to_string(pattern), to_string(text), flags)