match trailing slash for vimeo links

app/helpers/markdownify_helper.rb

@@ -97,7 +97,7 @@ module MarkdownifyHelper
   end
 
   def process_vimeo(message, vimeo_maps)
-    regex = /https?:\/\/(?:w{3}\.)?vimeo.com\/(\d{6,})/
+    regex = /https?:\/\/(?:w{3}\.)?vimeo.com\/(\d{6,})\/?/
     processed_message = message.gsub(regex) do |matched_string|
       match_data = message.match(regex)
       video_id = match_data[1]
@@ -131,4 +131,4 @@ module MarkdownifyHelper
     end
     message
   end
-end
+end

spec/helpers/markdownify_helper_spec.rb

@@ -44,6 +44,15 @@ describe MarkdownifyHelper do
           res.should =~ /data-video-id="#{video_id}"/
         end
 
+        it "matches a trailing slash in a vimeo link" do
+          video_id = "17449557"
+          url = "http://www.vimeo.com/#{video_id}/"
+          res = markdownify(url)
+          res.should =~ /data-host="vimeo.com"/
+          res.should =~ /data-video-id="#{video_id}"/
+          res.should_not =~ />\//
+        end
+
         it "recognizes youtube links" do
           video_id = "0x__dDWdf23"
           url = "http://www.youtube.com/watch?v=" + video_id + "&a=GxdCwVVULXdvEBKmx_f5ywvZ0zZHHHDU&list=ML&playnext=1"
@@ -236,4 +245,4 @@ describe MarkdownifyHelper do
       end
     end
   end
-end
+end