Fix spelling errors and capitalization.

src/libregex/lib.rs

@@ -381,7 +381,7 @@ extern crate rand;
 #[cfg(test)]
 extern crate regex;
 
-// unicode tables for character classes are defined in libunicode
+// Unicode tables for character classes are defined in libunicode
 extern crate unicode;
 
 pub use parse::Error;

src/libregex/parse.rs

@@ -620,9 +620,9 @@ impl<'a> Parser<'a> {
         }
     }
 
-    // Parses a unicode character class name, either of the form \pF where
-    // F is a one letter unicode class name or of the form \p{name} where
-    // name is the unicode class name.
+    // Parses a Unicode character class name, either of the form \pF where
+    // F is a one letter Unicode class name or of the form \p{name} where
+    // name is the Unicode class name.
     // Assumes that \p or \P has been read (and 'p' or 'P' is the current
     // character).
     fn parse_unicode_name(&mut self) -> Result<Ast, Error> {

src/libregex/vm.rs

@@ -364,7 +364,7 @@ impl<'t> CharReader<'t> {
     }
 
     /// Sets the previous and current character given any arbitrary byte
-    /// index (at a unicode codepoint boundary).
+    /// index (at a Unicode codepoint boundary).
     #[inline]
     pub fn set(&mut self, ic: uint) -> uint {
         self.prev = None;