Very basic Notcurses support. There are bugs! (0.37.45)

examples/notcurses_clock.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: 2026-01-03
+ */
+
+// BROKEN!!!
+
+/*
+ * Notcurses clock demo: updates time every 200ms; any key to finish.
+ */
+
+include <ui/notcurses.fun>
+
+n = Notcurses()
+if n.init() == 0
+  print("Notcurses not available. Rebuild with -DFUN_WITH_NOTCURSES=ON.")
+  exit(0)
+
+n.clear()
+n.draw_text(1, 0, "Clock demo (press any key)")
+
+var done = 0
+while done == 0
+  // current time string
+  var ms = time_now_ms()
+  var t = date_format("%Y-%m-%d %H:%M:%S", ms)
+  n.draw_text(3, 0, "Time: " + t)
+
+  // poll without blocking too long
+  var k = n.getch(200)
+  if k != -1
+    done = 1
+
+n.shutdown()

examples/notcurses_hello.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: 2026-01-03
+ */
+
+/*
+ * Minimal Notcurses hello example.
+ */
+
+include <ui/notcurses.fun>
+
+n = Notcurses()
+
+if n.init() == 0
+  print("Notcurses not available. Rebuild with -DFUN_WITH_NOTCURSES=ON.")
+  exit(0)
+
+n.clear()
+n.draw_text(2, 0, "Fun + Notcurses")
+n.draw_text(4, 0, "Press any key to exit...")
+
+// blocking until key
+_ = n.getch(0)
+n.shutdown()
+
+/* Possible output:
+A TUI.
+
+After exit:
+3 renders, 991,14µs (223,57µs min, 330,38µs avg, 531,91µs max)
+3 rasters, 320,76µs (106,45µs min, 106,92µs avg, 107,72µs max)
+3 writes, 198,26µs (62,54µs min, 66,09µs avg, 69,94µs max)
+59B (0B min, 19B avg, 30B max) 1 input Ghpa: 0
+0 failed renders, 0 failed rasters, 0 refreshes, 0 input errors
+RGB emits:elides: def 1:38 fg 0:0 bg 0:0
+Cell emits:elides: 39:74805 (99,95%) 97,44% 0,00% 0,00%
+Bmap emits:elides: 0:0 (0,00%) 0B (0,00%) SuM: 0 (0,00%)
+*/

examples/notcurses_typing.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: 2026-01-03
+ */
+
+// BROKEN!!!
+
+/*
+ * Notcurses typing demo: shows last key code; ESC quits.
+ */
+
+include <ui/notcurses.fun>
+
+n = Notcurses()
+if n.init() == 0
+  print("Notcurses not available. Rebuild with -DFUN_WITH_NOTCURSES=ON.")
+  exit(0)
+
+n.clear()
+n.draw_text(1, 0, "Typing demo (ESC to quit)")
+
+var running = 1
+var last = -1
+while running == 1
+  // poll every 100ms
+  var k = n.getch(100)
+  if k != -1
+    last = k
+    if k == 27 // ESC
+      running = 0
+    // draw last key code
+    n.draw_text(3, 0, "Last key code: " + to_string(last))
+
+n.shutdown()