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https://github.com/clap-rs/clap
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392effe319
This PR switches the Arg::Short macro to take a character instead of a string. It removes the hacky code in the Method to_token method and implements the logic for Short when parsing the clap derive arguments. Fixes #1815.
48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
//! A somewhat comprehensive example of a typical `StructOpt` usage.use
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use clap::Clap;
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use std::path::PathBuf;
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/// A basic example
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#[derive(Clap, Debug)]
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#[clap(name = "basic")]
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struct Opt {
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// A flag, true if used in the command line. Note doc comment will
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// be used for the help message of the flag. The name of the
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// argument will be, by default, based on the name of the field.
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/// Activate debug mode
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#[clap(short, long)]
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debug: bool,
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// The number of occurrences of the `v/verbose` flag
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/// Verbose mode (-v, -vv, -vvv, etc.)
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#[clap(short, long, parse(from_occurrences))]
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verbose: u8,
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/// Set speed
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#[clap(short, long, default_value = "42")]
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speed: f64,
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/// Output file
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#[clap(short, long, parse(from_os_str))]
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output: PathBuf,
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// the long option will be translated by default to kebab case,
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// i.e. `--nb-cars`.
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/// Number of cars
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#[clap(short = 'c', long)]
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nb_cars: Option<i32>,
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/// admin_level to consider
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#[clap(short, long)]
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level: Vec<String>,
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/// Files to process
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#[clap(name = "FILE", parse(from_os_str))]
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files: Vec<PathBuf>,
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}
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fn main() {
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let opt = Opt::parse();
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println!("{:#?}", opt);
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}
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