Added try/catch/finally to the parser. (0.18.0)

examples/try_catch_finally.fun

@@ -0,0 +1,24 @@
+/*
+ * This file is part of the Fun programming language.
+ * https://hanez.org/project/fun/
+ *
+ * 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: 2025-10-03
+ */
+
+// Demonstration of try/catch/finally syntax support
+// Note: current runtime does not yet implement exceptions; catch blocks are not executed.
+
+print("before try")
+try
+  print("inside try body")
+catch err
+  // This will not run yet (no exception raised, and runtime doesn't support throwing)
+  print("caught error: ")
+  print(err)
+finally
+  print("finally always runs (syntactically)")
+print("after try")

examples/try_catch_with_error.fun

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+/*
+ * This file is part of the Fun programming language.
+ * https://hanez.org/project/fun/
+ *
+ * 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: 2025-10-03
+ */
+
+// Example: try/catch/finally with an intentional runtime error
+// Note: The current runtime does not implement exceptions yet, so the catch
+// block will not execute today. This example is prepared for when exceptions
+// are supported. It also demonstrates the location of the error inside try.
+
+print("before try")
+try
+  print("inside try: about to divide by zero")
+  number x = 1 / 0  // deliberate runtime error
+  print("this will not be reached due to the error above")
+catch err
+  // Intended behavior (once exceptions are wired up): this block runs
+  // and 'err' contains an error object/stack trace
+  print("caught error: ")
+  print(err)
+finally
+  print("finally runs regardless (syntactically, even without exceptions)")
+print("after try")