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Added some CLI args support. (0.37.35)

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Johannes Findeisen 2025-12-30 17:19:31 +01:00
commit 6124d1e7fd
6 changed files with 173 additions and 2 deletions
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examples/cli_parse_example.fun Executable file
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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: 2025-12-30
*/
// Demonstrates parsing flags like -f, --force, --force=42 and positionals
// Usage examples:
// FUN_LIB_DIR="$(pwd)/lib" ./build_debug/fun ./examples/cli_parse_example.fun -f foo
// FUN_LIB_DIR="$(pwd)/lib" ./build_debug/fun ./examples/cli_parse_example.fun --force bar
// FUN_LIB_DIR="$(pwd)/lib" ./build_debug/fun ./examples/cli_parse_example.fun --force=42 alpha beta
// FUN_LIB_DIR="$(pwd)/lib" ./build_debug/fun ./examples/cli_parse_example.fun -abc x y
#include <cli.fun>
args = argv()
parsed = parse_args(args)
flags = parsed["flags"]
pos = parsed["positionals"]
if (flags["f"] == 1 || flags["force"] == 1)
print("Force enabled")
if (has_key(flags, "force") && typeof(flags["force"]) == "string")
print(join(["Force value=", flags["force"]], ""))
print("Flags map:")
print(flags)
print("Positionals:")
print(pos)