Re: re-search bug?

[Katsumi Yamaoka <yamaoka@jpl.org>]

>>>>> In <200502030223.LAA24558@etlken.m17n.org> Kenichi Handa wrote:

>> With the latest Emacs CVS, the following form causes an error.

>> (with-temp-buffer
>>   (insert "Sender: ")
>>   (let ((pt (point)))
>>     (insert "ding-owner@lists.math.uh.edu")
>>     (re-search-backward "ding-owner@lists\\.math\\.uh\\.edu" pt)))

> This is due to my last change for handling cases for
> I-WITH-DOT-ABOVE and DOTLESS-i.  I've just cancelled those
> changes.

I confirmed it has been fixed.  Thanks.  At just the time
Handa-san fixed it, I was looking for the cause of the problem. ;-)

> It seems that the current code in casefiddle.c has a serious
> bug in supporting this kind of case-mapping.

> i <--up/downcase--> I
> DOTLESS-i --upcase-> I
> I-WITH-DOT-ABOVE --downcase-> i

I see it is the case issue.  The form above did work if
`case-fold-search' was bound to nil.

Regards,