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, 100 insertions, 0 deletions

diff --git a/argparse/src/from_cli.rs b/argparse/src/from_cli.rs
new file mode 100644
index 0000000..7ea6d58
--- /dev/null
+++ b/argparse/src/from_cli.rs
@@ -0,0 +1,100 @@
+use std::str::FromStr;
+use std::path::PathBuf;
+use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr};
+
+use super::FromCommandLine;
+
+
+impl FromCommandLine for PathBuf {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        Ok(From::from(s))
+    }
+}
+
+impl FromCommandLine for f32 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for f64 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+
+// TODO(tailhook) implement various radices for integer values
+impl FromCommandLine for isize {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for i8 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for i16 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for i32 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for i64 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for usize {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for u8 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for u16 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for u32 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for u64 {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for bool {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for String {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|_| unreachable!())
+    }
+}
+impl FromCommandLine for Ipv4Addr {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for Ipv6Addr {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}
+impl FromCommandLine for SocketAddr {
+    fn from_argument(s: &str) -> Result<Self, String> {
+        FromStr::from_str(s).map_err(|e| format!("{:?}", e))
+    }
+}