Added base64 example. Lot of refactoring. (0.37.49)

examples/interactive/console_prompt.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: 2026-01-12
+ */
+
+// Demonstrates the the console prompt.
+
+include <io/console.fun>
+
+input = Console().prompt("fun> ")
+print("You entered: " + input)
+
+/* Possible output:
+fun> Fun!
+You entered: Fun!
+*/

examples/interactive/input_example.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: 2025-10-02
+ */
+
+/*
+ * Interactive input example using input() and Console wrapper.
+ */
+
+#include <io/console.fun>
+
+print("=== input() builtin ===")
+name = input("Enter your name: ")
+print(join(["Hello, ", name, "!"], ""))
+
+print("=== Console class ===")
+c = Console()
+city = c.ask("Your city")
+print(join(["Nice to meet you from ", city], ""))
+
+yn = c.ask_yes_no("Do you like Fun?")
+if yn
+  print("Great! 🎉")
+else
+  print("Give it a try, it grows on you.")
+
+/* Input given:
+Enter your name: Hanez
+Your city: Universe
+Do you like Fun? [y/n]: y
+*/
+
+/* Expected output:
+=== input() builtin ===
+Hello, Hanez!
+=== Console class ===
+Nice to meet you from Universe
+Great! 🎉
+*/

examples/interactive/input_hidden_example.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Example: Demonstrate hidden input (no echo) for passwords.
+ *
+ * Added: 2026-01-02
+ */
+
+#include <io/console.fun>
+
+print("=== input_hidden() example ===")
+
+c = Console()
+
+username = c.ask("Username")
+password = c.ask_hidden("Password")
+
+// Do not print the password; just show the username
+print(join(["Hello, ", username, "!"], ""))
+
+/* Expected output:
+Username: hanez
+Password:
+=== input_hidden() example ===
+Hello, hanez!
+*/

examples/interactive/input_hidden_pam_auth.fun

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+#!/usr/bin/env fun
+
+/*
+ * This file is part of the Fun programming language.
+ * https://fun-lang.xyz/
+ *
+ * Example: Demonstrate hidden input (no echo) for passwords using
+ * /usr/bin/chkpwd from https://git.xw3.org/hanez/chkusr for PAM authetication.
+ *
+ * Added: 2026-01-02
+ */
+
+#include <io/console.fun>
+
+print("=== input_hidden() example with PAM authentication ===")
+
+c = Console()
+
+username = c.ask("Username")
+password = c.ask_hidden("Password")
+
+// Do not print the password; just show the username
+print(join(["Hello, ", username, "!"], ""))
+
+res = proc_run("chkpwd -u " + username + " -p " + password)
+content = res["out"]
+if (res["code"] == 0)
+  print("Login success!")
+else
+  print("Login failed!")
+
+/* Possible output:
+Username: hanez
+Password:
+=== input_hidden() example with PAM authentication ===
+Hello, hanez!
+Login success!
+
+Or:
+Username: hanez
+Password: 
+=== input_hidden() example with PAM authentication ===
+Hello, hanez!
+Login failed!
+*/