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, 54 insertions, 0 deletions

diff --git a/argparse/src/test_optional.rs b/argparse/src/test_optional.rs
new file mode 100644
index 0000000..5f4c35e
--- /dev/null
+++ b/argparse/src/test_optional.rs
@@ -0,0 +1,54 @@
+use parser::ArgumentParser;
+use super::StoreOption;
+use test_parser::{check_ok};
+
+fn opt(args: &[&str]) -> Option<isize> {
+    let mut val = None;
+    {
+        let mut ap = ArgumentParser::new();
+        ap.refer(&mut val)
+          .add_option(&["-s", "--set"], StoreOption,
+            "Set int value");
+        check_ok(&ap, args);
+    }
+    return val;
+}
+
+#[test]
+fn test_opt() {
+    assert_eq!(opt(&["./argparse_test"]), None);
+    assert_eq!(opt(&["./argparse_test", "-s", "10"]), Some(10));
+    assert_eq!(opt(&["./argparse_test", "--set", "11"]), Some(11));
+}
+
+#[test]
+#[should_panic]
+fn test_opt_no_arg() {
+    opt(&["./argparse_test", "--set"]);
+}
+
+fn optstr(args: &[&str]) -> Option<String> {
+    let mut val = None;
+    {
+        let mut ap = ArgumentParser::new();
+        ap.refer(&mut val)
+          .add_option(&["-s", "--set"], StoreOption,
+            "Set string value");
+        check_ok(&ap, args);
+    }
+    return val;
+}
+
+#[test]
+fn test_str() {
+    assert_eq!(optstr(&["./argparse_test"]), None);
+    assert_eq!(optstr(&["./argparse_test", "-s", "10"]), Some(10.to_string()));
+    assert_eq!(optstr(&["./argparse_test", "--set", "11"]),
+        Some(11.to_string()));
+}
+
+#[test]
+#[should_panic]
+fn test_str_no_art() {
+    optstr(&["./argparse_test", "--set"]);
+}