GNU bug report logs - #14238
[PATCH] Help page for character description forgets the character

Previous Next

Full log

Message #8 received at 14238 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Kelly Dean <kellydeanch <at> yahoo.com>
Cc: 14238 <at> debbugs.gnu.org
Subject: Re: bug#14238: [PATCH] Help page for character description forgets
	the character
Date: Mon, 22 Apr 2013 10:26:15 -0400

> On 24.3, emacs -Q
> Type the letters AB, then put point on A. Do describe-char, then put point
> on B, and do describe-char again.
> Change the A to C, the press [back] in *Help*.
> The help page is now for C, not for A. It should be for A; you never did describe-char on C.

Not sure if it is really a bug: while the name is "describe-char" what
it does is more like "describe-pos" (and indeed it receives a position
rather than a char as argument).

So when you "back" you ask to redisplay the info about the pos where
A used to be (and where C is now instead).

The data stored with `help-setup-xref' is also used for `revert-buffer'
which lets you refresh the description after the buffer was modified.


        Stefan

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.