Added some more datetime stdlib Fun with examples. And some permission fixes. (0.36.1)

examples/datetime_extended.fun

@@ -0,0 +1,66 @@
+#!/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: 2025-12-09
+ */
+
+// Extended Date/Time examples using the stdlib DateTime class
+#include <utils/datetime.fun>
+
+fun main()
+  dt = DateTime()
+
+  print("--- Basics ---")
+  now_ms = dt.now_ms()
+  print(join(["now_ms: ", to_string(now_ms)], ""))
+  print(join(["now_s: ", to_string(dt.now_s())], ""))
+  print(join(["iso_now: ", dt.iso_now()], ""))
+  print(join(["today: ", dt.today_str()], ""))
+
+  print("--- Formatting helpers ---")
+  print(join(["iso_from(now): ", dt.iso_from(now_ms)], ""))
+  print(join(["date_str(now): ", dt.date_str(now_ms)], ""))
+  print(join(["time_str(now): ", dt.time_str(now_ms)], ""))
+
+  print("--- Conversions ---")
+  print(join(["ms_to_s(1234): ", to_string(dt.ms_to_s(1234))], ""))
+  print(join(["s_to_ms(2): ", to_string(dt.s_to_ms(2))], ""))
+
+  print("--- Arithmetic ---")
+  in_2s = dt.add_seconds(now_ms, 2)
+  print(join(["in 2s (ms): ", to_string(in_2s)], ""))
+  print(join(["diff_ms(now, in_2s): ", to_string(dt.diff_ms(now_ms, in_2s))], ""))
+
+  print("--- Timer ---")
+  t0 = dt.start_timer()
+  dt.sleep_ms(120)
+  print(join(["elapsed ~120ms: ", to_string(dt.elapsed_ms(t0)), " ms"], ""))
+
+main()
+
+/* Possible output:
+--- Basics ---
+now_ms: 1765320472780
+now_s: 1765320472
+iso_now: 2025-12-09T23:47:52
+today: 2025-12-09
+--- Formatting helpers ---
+iso_from(now): 2025-12-09T23:47:52
+date_str(now): 2025-12-09
+time_str(now): 23:47:52
+--- Conversions ---
+ms_to_s(1234): 1
+s_to_ms(2): 2000
+--- Arithmetic ---
+in 2s (ms): 1765320474780
+diff_ms(now, in_2s): 2000
+--- Timer ---
+elapsed ~120ms: 120 ms
+*/

examples/datetime_timer.fun

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+#!/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: 2025-12-09
+ */
+
+// Simple stopwatch using DateTime helpers
+#include <utils/datetime.fun>
+
+fun main()
+  dt = DateTime()
+  print("Starting timer for ~250ms ...")
+  t0 = dt.start_timer()
+  dt.sleep_s(0.2) // 200 ms
+  dt.sleep_ms(50)
+  elapsed = dt.elapsed_ms(t0)
+  print(join(["Elapsed: ", to_string(elapsed), " ms"], ""))
+
+main()
+
+/* Possible output:
+Starting timer for ~250ms ...
+Elapsed: 250 ms
+*/