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


From: tcross
Subject: Re: Info.el --signals error repeatedly when at top of the tree
Date: Sun, 4 Nov 2001 15:28:02 +1100

Just confirming what Raman has reported. This behavior of reporting
error only happens when at the top of the tree or in leafe nodes
(those with no previous/next node defined) and it only appears to
occur when running under X windows (Using GNOME and sawfish window
manager on Linux systems with XFree86 3.x and 4.x and linux kernels
2.2.x and 2.4.x). Does not appear to occur when emacs is run from a
linux text console. 

I first noticed this with emacs-21.0.103 pre-release on a RedHat 6.2
system and with the first release of emacs 21 on a Mandrake 8.0
system. 

Tim
T. V. Raman writes:
> The call to signal appears to be coming from function 
> Info-extract-pointer
> --and appears to happen when this function is called from 
> functon Info-prev
> on line 
> (Info-goto-node (Info-extract-pointer "prev[ious]*"
> "previous"))
> --I am infering this because I saw the 
> "prev[ious]*"
>  in the call above in the Messages buffer.
> 
> The new customization option that optionally preserves the
> header line at the top of the frame may also have something
> to do with whether this bug shows up --
> see option 
> 
> (defcustom Info-use-header-line t
>   "*Non-nil means to put the beginning-of-node links in an emacs header-line.
> A header-line does not scroll with the rest of the buffer."
>   :type 'boolean
>   :group 'info)
> 
> --I've at least confirmed that this occurs under X with
> emacs21 and emacspeak --but without my personal .emacs file 
> --so that's at least one piece simplified out.
> An Emacspeak user in Australia first reported this problem
> on the Emacspeak list.
> 
> -- 
> 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

-- 
Tim Cross
mailto: address@hidden
phone: +61 2 6772 5973
mobile: 0412 969193
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