Merge pull request #70 from blaenk/from_str

implement FromStr for Regex

Author: alexcrichton

src/re.rs

@@ -14,6 +14,7 @@ use std::collections::hash_map::Iter;
 use std::fmt;
 #[cfg(feature = "pattern")]
 use std::str::pattern::{Pattern, Searcher, SearchStep};
+use std::str::FromStr;
 
 use compile::Program;
 use parse;
@@ -158,6 +159,15 @@ impl fmt::Debug for Regex {
     }
 }
 
+impl FromStr for Regex {
+    type Err = parse::Error;
+
+    /// Attempts to parse a string into a regular expression
+    fn from_str(s: &str) -> Result<Regex, parse::Error> {
+        Regex::new(s)
+    }
+}
+
 impl Regex {
     /// Compiles a dynamic regular expression. Once compiled, it can be
     /// used repeatedly to search, split or replace text in a string.