1 files changed, 19 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 000000000..c2f3cc533
--- /dev/null
+++ b/vendor/clap/examples/tutorial_builder/04_02_parse.rs
@@ -0,0 +1,19 @@
+// Note: this requires the `cargo` feature
+
+use clap::{arg, command, value_parser};
+
+fn main() {
+    let matches = command!()
+        .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);
+}