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bug#13763: 23.4; emacs Info-tagify


From: mkiever
Subject: bug#13763: 23.4; emacs Info-tagify
Date: Tue, 19 Feb 2013 15:46:28 -0000

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your report will be posted to the address@hidden mailing list
and the gnu.emacs.bug news group, and at http://debbugs.gnu.org.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug.  If you can, give
a recipe starting from `emacs -Q':

ESC-: (info) RET
ESC-: (Info-tagify) RET

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  file-name-nondirectory(nil)
  Info-tagify()
  eval((Info-tagify))
  eval-expression((Info-tagify) nil)

When Info-tagify is called without parameters
it tries to get "(buffer-file-name)" which is nil.


If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/usr/share/emacs/23.4/etc/DEBUG.


In GNU Emacs 23.4.1 (i486-pc-linux-gnu, GTK+ Version 2.24.10)
 of 2012-09-09 on murphy, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11204000
configured using `configure  '--build' 'i486-linux-gnu' '--build' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.4/site-lisp:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/i386-linux-gnu' '--with-x=yes' '--with-x-toolkit=gtk' 
'--with-toolkit-scroll-bars' 'build_alias=i486-linux-gnu' 'CFLAGS=-g -O2 
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security 
-Wall -DDEBIAN -O2' 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

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_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  diff-auto-refine-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down> <return> C-x p C-x o <prior> <prior> <prior> 
<up> C-x C-b C-x o <down> <down> <down> <return> C-s 
t a g i f y C-s <help-echo> C-x C-b C-x o <down> <down> 
<down> <down> <down> <down> <up> <up> <up> <up> <up> 
<up> <down> <down> <down> <down> <return> <escape> 
: ( I n f o - t a g i f y ) <return> <help-echo> <up> 
<up> <up> <up> <up> <down> C-x C-b C-x o <down> <down> 
<down> <return> <down> <down> <down> <down> <down> 
<down> <down> <help-echo> <down> <down> <down> C-x 
C-b C-x o <down> <down> <return> <escape> : ( b u f 
f e r - f i l e - n a m e ) <return> <home> t <down> 
<down> <down> <down> <down> <down> <down> <down> <escape> 
: ( t e x t - m o d e ) <return> <next> <prior> <escape> 
: ( w i d e n ) <return> <home> <next> <prior> <prior> 
<prior> <next> <next> <next> <next> <next> <next> <next> 
<next> <next> <next> <next> <next> <next> <next> <next> 
<next> <next> <next> <next> <escape> ( <escape> : ( 
b u f f e r - f i l e - n a m e ) <return> C-x k <return> 
<escape> : ( i n f o ) <return> <escape> : ( b u f 
f e r - f i l e n <backspace> - n a m e ) <return> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <escape> 
: ( f i l e n = <backspace> <backspace> - n a m e - 
n o n d i r e c t o r y SPC n i l ) <return> <help-echo> 
<help-echo> M-x r e p o r t - e m a c s - b u g <r
eturn>

Recent messages:
nil [2 times]
call-interactively: End of buffer
call-interactively: Beginning of buffer
nil
call-interactively: Beginning of buffer
insert-parentheses: Buffer is read-only: #<buffer *info*>
nil
Composing main Info directory...done
nil [2 times]
Entering debugger...

Load-path shadows:
/usr/share/emacs/23.4/site-lisp/debian-startup hides 
/usr/share/emacs/site-lisp/debian-startup
/home/mkiever/lib/elisp/info hides /usr/share/emacs/23.4/lisp/info
/usr/share/emacs23/site-lisp/dictionaries-common/flyspell hides 
/usr/share/emacs/23.4/lisp/textmodes/flyspell
/usr/share/emacs23/site-lisp/dictionaries-common/ispell hides 
/usr/share/emacs/23.4/lisp/textmodes/ispell

Features:
(shadow sort mail-extr message sendmail ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1
hex-util hashcash mail-utils emacsbug debug find-func help-mode view
informat rect diff-mode pcvs derived pcvs-parse pcvs-info pcvs-defs
easy-mmode pcvs-util help-fns ewoc dired-aux dabbrev multi-isearch
mule-util vc-rcs vc-dispatcher vc-svn nxml-uchnm rng-xsd xsd-regexp
rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse nxml-parse
rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode nxml-outln
nxml-rap nxml-util nxml-glyph nxml-enc xmltok make-mode css-mode imenu
python-mode info-look ansi-color compile cl cl-19 comint ring parse-time
vc-cvs sgml-mode info speedbar sb-image ezimage dframe assoc jka-compr
bookmark pp dired cc-mode cc-fonts easymenu cc-menus cc-cmds cc-styles
cc-align cc-engine cc-vars cc-defs regexp-opt desktop devhelp tooltip
ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd font-setting
tool-bar dnd fontset image fringe lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mldrag mouse jit-lock font-lock
syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev loaddefs button
minibuffer faces cus-face files text-properties overlay md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process dbusbind system-font-setting
font-render-setting gtk x-toolkit x multi-tty emacs)


Regards,
Matthias Kievernagel

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