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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Kelly Dean <kellydeanch@yahoo.com>
Cc: 14238@debbugs.gnu.org
Subject: bug#14238: [PATCH] Help page for character description forgets the character
Date: Mon, 22 Apr 2013 10:26:15 -0400	[thread overview]
Message-ID: <jwvr4i27ikm.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <1366544301.44150.YahooMailClassic@web141106.mail.bf1.yahoo.com> (Kelly Dean's message of "Sun, 21 Apr 2013 04:38:21 -0700 (PDT)")

> 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





  reply	other threads:[~2013-04-22 14:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-21 11:38 bug#14238: [PATCH] Help page for character description forgets the character Kelly Dean
2013-04-22 14:26 ` Stefan Monnier [this message]
2013-04-26 21:01   ` Kelly Dean
2013-04-27  4:19     ` Stefan Monnier

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