Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 17 insertions, 0 deletions

diff --git a/vendor/clap/examples/tutorial_builder/04_02_parse.rs b/vendor/clap/examples/tutorial_builder/04_02_parse.rs
new file mode 100644
index 0000000..a3f7904
--- /dev/null
+++ b/vendor/clap/examples/tutorial_builder/04_02_parse.rs
@@ -0,0 +1,17 @@
+use clap::{arg, command, value_parser};
+
+fn main() {
+    let matches = command!() // requires `cargo` feature
+        .arg(
+            arg!(<PORT>)
+                .help("Network port to use")
+                .value_parser(value_parser!(u16).range(1..)),
+        )
+        .get_matches();
+
+    // Note, it's safe to call unwrap() because the arg is required
+    let port: u16 = *matches
+        .get_one::<u16>("PORT")
+        .expect("'PORT' is required and parsing will fail if its missing");
+    println!("PORT = {port}");
+}