From 20431706a863f92cb37dc512fef6e48d192aaf2c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:11:38 +0200 Subject: Merging upstream version 1.66.0+dfsg1. Signed-off-by: Daniel Baumann --- .../examples/tutorial_builder/04_01_possible.rs | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 vendor/clap-3.2.20/examples/tutorial_builder/04_01_possible.rs (limited to 'vendor/clap-3.2.20/examples/tutorial_builder/04_01_possible.rs') diff --git a/vendor/clap-3.2.20/examples/tutorial_builder/04_01_possible.rs b/vendor/clap-3.2.20/examples/tutorial_builder/04_01_possible.rs new file mode 100644 index 000000000..3da7aca74 --- /dev/null +++ b/vendor/clap-3.2.20/examples/tutorial_builder/04_01_possible.rs @@ -0,0 +1,26 @@ +use clap::{arg, command}; + +fn main() { + let matches = command!() // requires `cargo` feature + .arg( + arg!() + .help("What mode to run the program in") + .value_parser(["fast", "slow"]), + ) + .get_matches(); + + // Note, it's safe to call unwrap() because the arg is required + match matches + .get_one::("MODE") + .expect("'MODE' is required and parsing will fail if its missing") + .as_str() + { + "fast" => { + println!("Hare"); + } + "slow" => { + println!("Tortoise"); + } + _ => unreachable!(), + } +} -- cgit v1.2.3