Attached is the bug fix and enhancements patchset #3 for hideifdef
mode to complete my earlier posted hideif.el on
http://www.emacswiki.org/emacs/hideif.el .

The earlier two patches are already submitted into Emacs trunk and
had reviewed by Stefan (Thanks Stefan!) Now I post the 3rd patch

here. Please help review my changes and give me your suggestions.

Thanks!

--
Best regards,