Add argparse 0.2.2 as a dependency

This patch adds the crate rust-argparse [0] in version 0.2.2 as a
dependency, as discussed in issue #4.

[0]  https://github.com/tailhook/rust-argparse

Import subrepo argparse/:argparse at 0de60a5e6d9ee1a3570d6089afd3ccd6ed7480c5

1 files changed, 38 insertions, 0 deletions

diff --git a/argparse/examples/structure.rs b/argparse/examples/structure.rs
new file mode 100644
index 0000000..59b9345
--- /dev/null
+++ b/argparse/examples/structure.rs
@@ -0,0 +1,38 @@
+extern crate argparse;
+
+use std::process::exit;
+
+use argparse::{ArgumentParser, StoreTrue, Store};
+
+struct Options {
+    verbose: bool,
+    name: String,
+}
+
+fn main() {
+    let mut options = Options {
+        verbose: false,
+        name: "World".to_string(),
+    };
+    {
+        let mut ap = ArgumentParser::new();
+        ap.set_description("Greet somebody.");
+        ap.refer(&mut options.verbose)
+            .add_option(&["-v", "--verbose"], StoreTrue,
+            "Be verbose");
+        ap.refer(&mut options.name)
+            .add_option(&["--name"], Store,
+            "Name for the greeting");
+        match ap.parse_args() {
+            Ok(()) => {}
+            Err(x) => {
+                exit(x);
+            }
+        }
+    }
+
+    if options.verbose {
+        println!("name is {}", options.name);
+    }
+    println!("Hello {}!", options.name);
+}