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From: "Richard M. Stallman" <rms@gnu.org>
Subject: [nickrob@snap.net.nz: Links in Help buffer]
Date: Tue, 20 Dec 2005 00:33:08 -0500	[thread overview]
Message-ID: <E1Eoa7Y-00053H-CQ@fencepost.gnu.org> (raw)

Can someone please work on this?

------- Start of forwarded message -------
From: Nick Roberts <nickrob@snap.net.nz>
Date: Tue, 20 Dec 2005 11:23:49 +1300
To: emacs-pretest-bug@gnu.org
Subject: Links in Help buffer
Sender: emacs-pretest-bug-bounces+rms=gnu.org@gnu.org
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If you do:

1) C-h f display-buffer <RET>
2) Click on pop-up-frames
3) Click on customize
4) Click on the [back] button in the Help buffer

you get the error:

apply: Symbol's function definition is void: nil


This is because help-xref-stack has been set back to nil by clicking on
customize:

In help-mode.el:


(define-button-type 'help-customize-face
  :supertype 'help-xref
  'help-function (lambda (v)
		   (if help-xref-stack
		       (pop help-xref-stack))
		   (customize-face v))
  'help-echo (purecopy "mouse-2, RET: customize face"))

The error goes away if help-xref-stack is not popped but the ChangeLog says:


2000-05-09  Dave Love  <fx@gnu.org>

	Changes mostly following Richard Sharman <rsharman@wave.home.com>.

	* help.el (describe-variable): Have customize button pop the
	help-xref stack when invoked.

Does anybody know why this is necessary?

Nick


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------- End of forwarded message -------

             reply	other threads:[~2005-12-20  5:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-20  5:33 Richard M. Stallman [this message]
2005-12-20  9:02 ` [nickrob@snap.net.nz: Links in Help buffer] Nick Roberts
2005-12-21  2:58   ` Richard M. Stallman
2005-12-21 21:27     ` Nick Roberts
2005-12-22  5:46       ` Richard M. Stallman
2005-12-23 12:14     ` Dave Love
2005-12-23 18:11       ` Richard M. Stallman

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