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First crack at help text

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a dinosaur
2025-11-01 16:19:38 +11:00
parent 6397ce61d9
commit c87fa5c4b6
7 changed files with 445 additions and 30 deletions
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11
examples/bin2h.rs
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@@ -203,19 +203,22 @@ pub fn main() -> ExitCode {
// Read & parse arguments from the command line, store results into the above structure
enum Arg { Out, Bin, Txt, Whitespace, Help }
const OPTIONS: Opts<Arg> = Opts::new(&[
Opt::flag(Arg::Help, &["--help", "-h"], "Show this help message and exit"),
Opt::positional_required(Arg::Out, "out", "Path to generated header file"),
Opt::value(Arg::Bin, &["--bin", "-b"], "data.bin", "Add a binary file"),
Opt::value(Arg::Txt, &["--txt", "-t"], "text.txt", "Add a text file"),
Opt::value(Arg::Whitespace, &["--whitespace"], "\"string\"", "Emitted indentation (Default: \"\\t\")"),
Opt::flag(Arg::Help, &["--help", "-h"], "Show this help message and exit"),
Opt::value(Arg::Whitespace, &["--whitespace"], "\" \"", "Emitted indentation (Default: \"\\t\")"),
]);
match OPTIONS.parse_env(|id, _opt, _name, arg| {
match OPTIONS.parse_easy(|program_name, id, _opt, _name, arg| {
match id {
Arg::Out => { arguments.out = arg.into(); }
Arg::Bin => { jobs.push(Job { job_type: JobType::Binary, path: arg.into() }); }
Arg::Txt => { jobs.push(Job { job_type: JobType::Text, path: arg.into() }); }
Arg::Whitespace => { arguments.whitespace = arg.into(); }
Arg::Help => { todo!(); }
Arg::Help => {
OPTIONS.print_full_help(program_name);
return Ok(ParseControl::Quit);
}
}
Ok(ParseControl::Continue)
}) {