std/args

Raw CLI argument access.

from "std/args" import { args, getFlag, hasFlag }

Example

if hasFlag("verbose") {
    print("verbose on")
}
match getFlag("output") {
    Some(path) => print($"Writing to {path}"),
    None => print("Writing to stdout"),
}

getFlag reads the --name value form only; --name=value is not recognised. For anything richer, use std/argparse.

API reference

args

pub fn args(): Vec<string>

Return all command-line arguments as a Vec<string>. Index 0 is the program name. Recorded and replayed under MILO_RECORD / MILO_REPLAY (std/replay); payload is each argument followed by a NUL.

getFlag

pub fn getFlag(name: &string): string?

Get the value following a --name flag. None if the flag is absent or is the last argument. Only the --name value form is recognised, not --name=value. Example: getFlag("port") returns the value after --port.

hasFlag

pub fn hasFlag(name: &string): bool

Check if a --name flag is present in the arguments.