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tar-untar-buffer fails on Emacs pretest tar ball


From: Ralf Angeli
Subject: tar-untar-buffer fails on Emacs pretest tar ball
Date: Sat, 03 Mar 2007 16:19:58 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.95 (gnu/linux)

Trying to untar an Emacs pretest tar ball (22.0.94) with
`tar-untar-buffer' results in the following backtrace:

Debugger entered--Lisp error: (error "Invalid search bound (wrong side of 
point)")
  re-search-forward("[
\n]\\([^[
\n]*\\)[        ]*Local Variables:[     ]*\\([^
\n]*\\)[
\n]" 342875 t)
  find-auto-coding("/home/angeli/test/emacs-22.0.94/AUTHORS" 89643)
  select-safe-coding-system(253232 342875 no-conversion nil 
"/home/angeli/test/emacs-22.0.94/AUTHORS")
  write-region(253232 342875 "emacs-22.0.94/AUTHORS")
  tar-untar-buffer()
  call-interactively(tar-untar-buffer)
  execute-extended-command(nil)
  call-interactively(execute-extended-command)

When looking at the tar buffer after the error happened point is
located at a new page character (^L).

The bug makes it impossible to install a package containing such
characters in certain files with install.el which uses
`tar-untar-buffer' for the extraction of files from a package.


In GNU Emacs 22.0.95.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2007-03-03 on neutrino
X server distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--with-gtk''

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-8859-1
  default-enable-multibyte-characters: t

Major mode: Tar

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
C-x C-f e m <tab> . <tab> <return> y M-x t a r - u 
n t a r <tab> <return> M-x r e p o r t - e m <tab> 
<return>

Recent messages:
File emacs-22.0.94.tar.gz is large (35MB), really open? (y or n) 
Loading jka-compr...done
uncompressing emacs-22.0.94.tar.gz...done
Loading tar-mode...done
Parsing tar file...done
Extracting emacs-22.0.94/AUTHORS
find-auto-coding: Invalid search bound (wrong side of point)
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done




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