pflags - POSIX/GNU-style -f/--flags in Odin

[prnvbn]

https://github.com/prnvbn/pflags is a drop-in replacement for Odin core:flags implementing better POSIX/GNU-style -f/--flags.

• Short flags can be declared with args:"short=f" and used as -f
• Boolean short flags can be bundled, so -abc is the same as -a -b -c
• Long flags use --flag strictly (-flag is not supported)

e.g.

package main

import "core:fmt"
import "core:os"
import "lib:pflags"

Options :: struct {
	name:    string `args:"short=n" usage:"Name to greet."`,
	verbose: bool   `args:"short=v" usage:"Use a more enthusiastic greeting."`,
}

main :: proc() {
	options := Options{name = "world"}
	pflags.parse_or_exit(&options, os.args, .Unix)

	if options.verbose {
		fmt.printfln("Hello, %s!!!", options.name)
	} else {
		fmt.printfln("Hello, %s!", options.name)
	}
}

// run using either
// odin run . -collection:lib=./lib -- --name prnvbn -verbose
// odin run . -collection:lib=./lib -- -n prnvbn -v