Add match_data, along with a delegated :[] method, to Lita::Response …

…which is especially useful for named capture groups from a route

lib/lita/handler.rb

@@ -97,7 +97,11 @@ def namespace
 
       # Builds a response object for an incoming message.
       def build_response(message, route)
-        Response.new(message, matches: message.match(route.pattern))
+        # TODO: this is highly inefficient running two regexp's (3 total if you count the one that matched the route in the first place)
+        # make faster!
+        match_data = message.body.match(route.pattern)
+        matches = message.match(route.pattern)
+        Response.new(message, matches: matches, match_data: match_data)
       end
 
       # Determines whether or not an incoming messages should trigger a route.

lib/lita/response.rb

@@ -12,6 +12,9 @@ class Response
     # @return [Array<String>, Array<Array<String>>] The array of matches.
     attr_accessor :matches
 
+    # A [MatchData] object from running the message against the route pattern.
+    attr_accessor :match_data
+
     # @!method args
     #   @see Lita::Message#args
     # @!method reply
@@ -20,11 +23,14 @@ class Response
     #   @see Lita::Message#user
     def_delegators :message, :args, :reply, :user, :command?
 
+    def_delegators :match_data, :[]
+
     # @param message [Lita::Message] The incoming message.
     # @param matches [Array<String>, Array<Array<String>>] The Regexp matches.
-    def initialize(message, matches: nil)
+    def initialize(message, matches: nil, match_data: nil)
       self.message = message
       self.matches = matches
+      self.match_data = match_data
     end
   end
 end