From 9fabf86e61c3ca5c040e72d6b4ee12aceb884bc6 Mon Sep 17 00:00:00 2001
From: hanez <you@hanez.org>
Date: Wed, 10 Dec 2025 00:31:07 +0100
Subject: [PATCH] Added echo to output data wthout a newline. (0.36.2)

---
 examples/echo_example.fun | 23 +++++++++++++++++++++++
 src/vm/echo.c             | 12 ++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100755 examples/echo_example.fun
 create mode 100644 src/vm/echo.c

diff --git a/examples/echo_example.fun b/examples/echo_example.fun
new file mode 100755
index 0000000..017e89c
--- /dev/null
+++ b/examples/echo_example.fun
@@ -0,0 +1,23 @@
+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Copyright 2025 Johannes Findeisen
+ * Licensed under the terms of the Apache-2.0 license.
+ * https://opensource.org/license/apache-2-0
+ *
+ * Added: 2025-12-10
+ */
+
+// echo_example.fun
+// Demonstrates echo(expr) which prints without a trailing newline.
+
+// Build a line without newline using echo, then finish with print to add newline
+echo("Hello, ")
+echo("world")
+print("!")
+
+// Expected output:
+// Hello, world!
diff --git a/src/vm/echo.c b/src/vm/echo.c
new file mode 100644
index 0000000..626bd7d
--- /dev/null
+++ b/src/vm/echo.c
@@ -0,0 +1,12 @@
+/**
+ * Implements OP_ECHO: print top-of-stack value without trailing newline.
+ * Does not store into VM output buffer; writes directly to stdout and flushes.
+ */
+
+case OP_ECHO: {
+    Value v = pop_value(vm);
+    print_value(&v);
+    fflush(stdout);
+    free_value(v);
+    break;
+}