Subject: bug#1374 closed by Chong Yidong <[email-masked]> (Re: 23.0.60; directory-files unexpectedly non-nil)

From: [email-masked] (Emacs bug Tracking System)

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#1374: 23.0.60; directory-files unexpectedly non-nil

It has been closed by Chong Yidong <[email-masked]>.

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1374: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1374
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>From [email-masked] Sat Dec  6 17:02:23 2008
From: Chong Yidong <[email-masked]>
To: Markus Triska <[email-masked]>
Cc: [email-masked]
Subject: Re: 23.0.60; directory-files unexpectedly non-nil
Date: Sat, 06 Dec 2008 20:02:24 -0500

This bug arose because the after-change-functions were triggered in the
code conversion work buffer, whereas directory-files assumed that
decoding a file name does not run arbitrary elisp code (otherwise, a
compiled regexp gets corrupted).  I've changed it so that
inhibit-modification-hooks is disabled in the code conversion buffer.

Thanks for the bug report.

>From [email-masked] Tue Nov 18 20:01:19 2008
From: Markus Triska <[email-masked]>
To: [email-masked]
Subject: 23.0.60; directory-files unexpectedly non-nil
Date: Wed, 19 Nov 2008 05:01:09 +0100 (CET)

Let ~/tmp be initially empty, and create these 7 files in it via:

  for i in 0085-ottosson.ps.gz 0091-lindgren.ps.gz    \
           0104-pettersson-carlsson.ps.gz 0108-carlsson.ps.gz   \
           0118-lindgren.ps.gz 1076.pdf apl_slides.pdf; do touch $i; done

As expected,

   (directory-files "~/tmp" nil "nonexistent")

then yields "nil". However, after I evaluate (in emacs -Q) the forms:

   (defun my-log (start end old)
     (write-region (point-min) (point-min) "/tmp/my-log-file.tmp" t 'silent))

   (add-hook 'after-change-functions 'my-log)

the new result of

   (directory-files "~/tmp" nil "nonexistent")

is unexpectedly:

   ("apl_slides.pdf")

using OSX. In Ubuntu Intrepid, the new result is, again unexpectedly:

   ("1076.pdf")

In GNU Emacs 23.0.60.2 (i386-apple-darwin8.11.1, GTK+ Version 2.12.9)
 of 2008-11-05 on mt-computer.local
Windowing system distributor `The XFree86 Project, Inc', version 11.0.40400000
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: nil
  default-enable-multibyte-characters: t