lib/active_support/inflector/methods.rb in activesupport-5.1.0.beta1 vs lib/active_support/inflector/methods.rb in activesupport-5.1.0.rc1

@@ -159,10 +159,10 @@
     #   titleize('man from the boondocks')   # => "Man From The Boondocks"
     #   titleize('x-men: the last stand')    # => "X Men: The Last Stand"
     #   titleize('TheManWithoutAPast')       # => "The Man Without A Past"
     #   titleize('raiders_of_the_lost_ark')  # => "Raiders Of The Lost Ark"
     def titleize(word)
-      humanize(underscore(word)).gsub(/\b(?<!['’`])[a-z]/) { |match| match.capitalize }
+      humanize(underscore(word)).gsub(/\b(?<!\w['’`])[a-z]/) { |match| match.capitalize }
     end
 
     # Creates the name of a table like Rails does for models to table names.
     # This method uses the #pluralize method on the last word in the string.
     #