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https://github.com/clap-rs/clap
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feat(macros): add ability to get mutliple typed values or exit
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1 changed files with 21 additions and 0 deletions
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@ -87,4 +87,25 @@ macro_rules! value_t_or_exit {
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}
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}
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}
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}
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};
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};
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($m:ident.values_of($v:expr), $t:ty) => {
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match $m.values_of($v) {
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Some(ref v) => {
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let mut tmp = Vec::with_capacity(v.len());
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for pv in v {
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match pv.parse::<$t>() {
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Ok(rv) => tmp.push(rv),
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Err(_) => {
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println!("{} isn't a valid {}\n{}\nPlease re-run with --help for more information",pv,stringify!($t), $m.usage());
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::std::process::exit(1);
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}
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}
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}
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tmp
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},
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None => {
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println!("Argument \"{}\" not found or is not valid\n{}\nPlease re-run with --help for more information",$v, $m.usage());
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::std::process::exit(1);
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}
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}
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};
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}
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}
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