GNU bug report logs - #5998
23.1.96; Breadcrumbs defeat C-u 1 C-v in Info

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From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Juri Linkov <juri <at> jurta.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 5998 <at> debbugs.gnu.org
Subject: bug#5998: 23.1.96; Breadcrumbs defeat C-u 1 C-v in Info
Date: Fri, 23 Apr 2010 10:38:03 -0400

> If there are no objections, I'll install this patch to the
> emacs-23 branch.

Fine by me, it's a good change anyway.  But we should still try and fix
the underlying redisplay bug, of course.


        Stefan


>>>> C-u 1 C-v
>>>> 
>>>> Note that the display does not scroll by one line.  "C-u 2 C-v" does
>>>> scroll by 2 lines, as well as "C-u 1 C-v" if the breadcrumbs are not
>>>> visible.
>> 
>> This patch removes the scrolling problem:
>> 
>> === modified file 'lisp/info.el'
>> --- lisp/info.el	2010-04-20 00:49:46 +0000
>> +++ lisp/info.el	2010-04-22 09:01:46 +0000
>> @@ -4365,8 +4365,7 @@ (defun Info-fontify-node ()
>> (cond
>> ((> Info-breadcrumbs-depth 0)
>> (let ((ov (make-overlay (point-min) (1+ header-end))))
>> -		(overlay-put ov 'invisible t)
>> -		(overlay-put ov 'after-string (Info-breadcrumbs))
>> +		(overlay-put ov 'display (Info-breadcrumbs))
>> (overlay-put ov 'evaporate t)))
>> ((not (bobp))
>> ;; Hide the punctuation at the end, too.

> -- 
> Juri Linkov
> http://www.jurta.org/emacs/

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