48 lines
1.4 KiB
Standard ML
Executable file
48 lines
1.4 KiB
Standard ML
Executable file
#!/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="$(pwd)/lib" ./build/fun ./examples/cli/cli_parse_example.fun -f foo
|
|
// FUN_LIB_DIR="$(pwd)/lib" ./build/fun ./examples/cli/cli_parse_example.fun --force bar
|
|
// FUN_LIB_DIR="$(pwd)/lib" ./build/fun ./examples/cli/cli_parse_example.fun --force=42 alpha beta
|
|
// FUN_LIB_DIR="$(pwd)/lib" ./build/fun ./examples/cli/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")
|
|
|
|
// No hasKey() builtin available here; check via keys()+contains()
|
|
flag_keys = keys(flags)
|
|
if (contains(flag_keys, "force") && typeof(flags["force"]) == "string")
|
|
print(join(["Force value=", flags["force"]], ""))
|
|
|
|
print("Flags map:")
|
|
print(flags)
|
|
print("Positionals:")
|
|
print(pos)
|
|
|
|
/* Expected output (FUN_LIB_DIR="$(pwd)/lib" ./build/fun ./examples/cli/cli_parse_example.fun --force bar xx x x --for=xxx --h=1):
|
|
1
|
|
Force enabled
|
|
Flags map:
|
|
{"force": 1, "for": xxx, "h": 1}
|
|
Positionals:
|
|
[bar, xx, x, x]
|
|
*/
|