Simpler regex

lib/typogruby.rb

@@ -162,7 +162,7 @@ def caps(text)
       t.gsub(%r{
           (<[^/][^>]*?>)|                                      # Ignore any opening tag, so we don't mess up attribute values
           (\s|&nbsp;|^|'|"|>|)                                 # Make sure our capture is preceded by whitespace or quotes
-          ([A-Z\d](?:[\.'&]?(&amp;|&\#38;)?[A-Z\d][\.']?){1,}) # Capture capital words, with optional dots, numbers or ampersands in between
+          ([A-Z\d](?:(\.|'|&|&amp;|&\#38;)?[A-Z\d][\.']?){1,}) # Capture capital words, with optional dots, numbers or ampersands in between
           (?!\w)                                               # ...which must not be followed by a word character.
         }x) do |str|
         tag, before, caps = $1, $2, $3