* progmodes/ruby-mode.el (ruby-font-lock-keywords): Highlight

  nested constants, too.  \_< broke that.

lisp/ChangeLog

@@ -4,6 +4,8 @@
 	checks made superfluous by the \_< operator.
 	* progmodes/ruby-mode.el (ruby-move-to-block): Work with (maybe
 	temporarily) broken indentation.
+	* progmodes/ruby-mode.el (ruby-font-lock-keywords): Highlight
+	nested constants, too.  \_< broke that.
 2013-01-27  Nobuyoshi Nakada  <nobu@ruby-lang.org>

lisp/progmodes/ruby-mode.el

@@ -1613,7 +1613,7 @@ See `font-lock-syntax-table'.")
    '("\\(\\$\\|@\\|@@\\)\\(\\w\\|_\\)+"
      0 font-lock-variable-name-face)
    ;; constants
-   '("\\_<\\([A-Z]+\\(\\w\\|_\\)*\\)"
+   '("\\(?:\\_<\\|::\\)\\([A-Z]+\\(\\w\\|_\\)*\\)"
      1 font-lock-type-face)
    '("\\(^\\s *\\|[\[\{\(,]\\s *\\|\\sw\\s +\\)\\(\\(\\sw\\|_\\)+\\):[^:]" 2 font-lock-constant-face)
    ;; expression expansion