Some arg Fun in Rust. (0.38.1)

examples/extra/pcsc_demo.fun

@@ -33,9 +33,9 @@ if len(readers) > 0
 
   if h != 0
     // Sample APDU: SELECT MF (00 A4 00 00 02 3F 00)
-    resp = pc.transmit_hex(h, "00A40000023F00")
-    // Print hex data and SW
-    print("resp.data_hex=" + resp["data_hex"])
+    // Use the safe convenience transmitter which returns a map {data, sw1, sw2, code}
+    resp = pc.transmit("00A40000023F00")
+    print("resp.data.len=" + to_string(len(resp["data"])) + " bytes")
     print("resp.sw1=" + to_string(resp["sw1"]) + " sw2=" + to_string(resp["sw2"]) + " code=" + to_string(resp["code"]))
 
     _ = pc.disconnect(h)

examples/rust_hello.fun

@@ -30,3 +30,7 @@
  */
 
 print(rust_hello())
+
+/* Expected output:
+Hello from Rust ops!
+*/ 

examples/rust_hello_args.fun

@@ -0,0 +1,37 @@
+#!/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: 2026-01-28
+ */
+
+/*
+ * Rust-backed opcode demo with argument: rust_hello_args(STRING)
+ *
+ * Build instructions:
+ *   - Rust integration is optional. Enable via:
+ *       cmake -S . -B build_debug -DFUN_WITH_RUST=ON
+ *   - Then build:
+ *       cmake --build build_debug --target fun
+ *
+ * Run:
+ *   build_debug/fun examples/rust_hello_args.fun
+ *
+ * Expected output (with FUN_WITH_RUST=ON):
+ *   Hello from Fun to Rust!
+ *
+ * Note:
+ *   The opcode prints from Rust and returns Nil, so there's nothing to print afterwards.
+ */
+
+rust_hello_args("Hello from Fun to Rust!")
+
+/* Expected output:
+Hello from Fun to Rust!
+*/