twitter-text-rb failure on double greater than

autolink.rb

diff --git a/lib/autolink.rb b/lib/autolink.rb
index 178e92f..dcdbc2a 100644
--- a/lib/autolink.rb
+++ b/lib/autolink.rb
@@ -78,12 +78,10 @@ module Twitter
       new_text = ""

       # this -1 flag allows strings ending in ">" to work
-      text.split(/[<>]/, -1).each_with_index do |chunk, index|
-        if index != 0
-          new_text << ((index % 2 == 0) ? ">" : "<")
-        end
-
-        if index % 4 != 0
+      text.split(/([<>])/, -1).each_with_index do |chunk, index|
+        if index != 0 and chunk.match(/[<>]/)
+          new_text << chunk
+        elsif index % 8 != 0
           new_text << chunk
         else
           new_text << chunk.gsub(Twitter::Regex[:auto_link_usernames_or_lists]) do

autolink.yml

diff --git a/autolink.yml b/autolink.yml
index f4c3f0b..9a0eb07 100644
--- a/autolink.yml
+++ b/autolink.yml
@@ -444,3 +444,7 @@ tests:
     - description: "Does not allow an XSS after an @"
       text: "See: http://x.xx/@\"style=\"color:pink\"onmouseover=alert(1)//"
       expected: "See: <a href=\"http://x.xx/\">http://x.xx/</a>@\"style=\"color:pink\"onmouseover=alert(1)//"
+
+    - description: "Correctly handles double greater than signs"
+      text: "I love double >> greater than signs."
+      expected: "I love double >> greater than signs."
+
+    - description: "Correctly handles triple greater than signs with username"
+      text: "I love triple >>> greater than signs with @username usernames."
+      expected: "I love triple >>> greater than signs with @<a class=\"tweet-url username\" href=\"http://twitter.com/username\">username</a> usernames."

Note: This fix breaks the test that deals with @foo being part of an existing URL in the tweet content. I.e. linkage should not get converted to a twitter link.