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Info.el --signals error repeatedly when at top of the tree


From: T. V. Raman
Subject: Info.el --signals error repeatedly when at top of the tree
Date: Thu, 1 Nov 2001 12:18:55 -0800

This bug appears when running Emacs 21 under X -- is not present when
running at a TTY or linux console.

Running under X:

If you launch info (C-h i)
then info signals an error repeatedly when one is on:

A) the top of the info tree
B) At a node that doesn't have a next or previous node

The error is signaled automatically --not just when the user tries to
move to a non-existing node.

The message displayed in the minibuffer is:
Composing main Info directory...done
Node has no Prev[Ious]*
Node has no Next
Node has no Up



The above is probably  an inoquous bug to the average Emacs user--
but causes lots of pain to Emacspeak --for now I've added a work
around to Emacspeak with the following advice fragment --
but of course I'd  like to get rid of it  --

(defadvice Info-extract-pointer  (around emacspeak pre act comp)
  "Silence emacspeak during call."
  (let ((emacspeak-speak-messages nil)
        (emacspeak-use-auditory-icons nil))
    ad-do-it))



In GNU Emacs 21.1.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2001-10-23 on bubbles.almaden.ibm.com
configured using `configure  --prefix=/usr/local'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: nil

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:




Recent input:
e m a <tab> <return> s b u g <return> <escape> m C-n 
C-p C-n C-n C-s s u b m i t <escape> m C-s b u g <escape> 
m C-n C-n C-n C-n C-p C-p C-n C-n C-n C-n C-n C-p C-p 
C-p C-p C-p C-p C-p C-n C-n <return> n n n C-h f e 
m a c s SPC <tab> C-g C-g C-e m <escape> x b u g <tab> 
C-g C-h f r e p o r t <tab> - C-g C-g <escape> x r 
e p o r t SPC e m <tab> <return>

Recent messages:
Node has no Next
signal: Quit
Node has no Next
Making completion list...
completing-read: Quit
Node has no Next
signal: Quit
Node has no Next
Loading emacsbug...done
signal: Beginning of buffer

-- 
Best Regards,
--raman
------------------------------------------------------------

IBM Research: Human Language Technologies
Phone:        1 (408) 927 2608
Fax:        1 (408) 927 3012
Email:        address@hidden
WWW:      http://www.cs.cornell.edu/home/raman
PGP:          http://emacspeak.sf.net/raman.asc
Snail:        IBM Almaden Research Center,
              650 Harry Road
              San Jose 95120



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