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From: martin rudalics <rudalics@gmx.at>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org, Miles Bader <miles@gnu.org>
Subject: Re: remember(-diary).el
Date: Thu, 22 Nov 2007 09:57:18 +0100	[thread overview]
Message-ID: <4745446E.6010009@gmx.at> (raw)
In-Reply-To: <u4pfe52vq.fsf@gnu.org>

 >>As I understand it (it's been a fairly long time since I've used the
 >>more primitive versions of windows), the "short name" chosen for a long
 >>name is explicitly chosen to ensure it doesn't clash with any other
 >>short names.  E.g., for the file "remember-diary.el", it might choose
 >>"rememb~1.el" as a short name.
 >
 > In theory, yes, but in practice, the algorithm that chooses the short
 > 8+3 alias has bugs that could well cause a clash, depending on what
 > other files are present in the directory whose names map to the same
 > strings after 8+3 truncation, and in what order Windows sees the files
 > created.

FWIW Eli's right:

(1) If remember.el is created _before_ remember-diary.el, the 8+3 alias
of the former is written to disk as REMEMBER.EL that of the latter as
REMEMB~1.EL (I did use the disk editor to verify that).

(2) If remember-diary.el is created first, its 8+3 alias is written to
disk as REMEMBER.EL.  When I now try to find a file remember.el in the
same directory, Windows finds remember-diary.el instead.  When I try to
store a file remember.el in that directory, Windows complains that such
a file already exists.

In general the problem occurs when the name of the second file I want to
write has eight characters _and_ is a prefix of the name of the first
file.  Hence, I get the same bug for remember_diary.el vs remember.el as
well as for rememberdiary.el vs remember.el.

With other words: When the name of a file A sans extension is a prefix
of the name of a file B sans extension and the length of the name of
file A sans extension equals 8, file A must be created before file B in
order for having both files coexist in the same directory.  I didn't
bother to check this rule for filenames containing a tilde.

My problem with the CVS repository thus could be resolved by renaming
remember.el to something like remember-core.el.

  reply	other threads:[~2007-11-22  8:57 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-21  7:24 remember(-diary).el martin rudalics
2007-11-21  7:32 ` remember(-diary).el Miles Bader
2007-11-21  8:39   ` remember(-diary).el Glenn Morris
2007-11-21 18:49     ` remember(-diary).el Eli Zaretskii
2007-11-21 23:57       ` remember(-diary).el John Wiegley
2007-11-21  8:44   ` remember(-diary).el martin rudalics
2007-11-21 13:55     ` remember(-diary).el Miles Bader
2007-11-21 17:06       ` remember(-diary).el martin rudalics
2007-11-21 18:50       ` remember(-diary).el Eli Zaretskii
2007-11-22  2:13         ` remember(-diary).el Miles Bader
2007-11-22  4:18           ` remember(-diary).el Eli Zaretskii
2007-11-22  8:57             ` martin rudalics [this message]
2007-11-22  9:44               ` remember(-diary).el joakim
2007-11-23  4:35                 ` remember(-diary).el Richard Stallman
2007-11-23 20:56                   ` remember(-diary).el Stephen J. Turnbull
2007-11-23 21:46                     ` remember(-diary).el David Kastrup
2007-11-22 10:41               ` remember(-diary).el Leo
2007-11-22 23:57                 ` remember(-diary).el Juri Linkov
2007-11-23  0:10                   ` remember(-diary).el Leo
2007-11-30  6:17                     ` remember(-diary).el Michael Olson
2007-11-30  8:27                       ` remember(-diary).el Leo
2007-11-30 12:40                         ` remember(-diary).el Michael Olson
2007-11-22  2:27     ` remember(-diary).el Richard Stallman
2007-11-30  6:22       ` remember(-diary).el Michael Olson
2007-11-30 16:48         ` remember(-diary).el Richard Stallman
2007-11-30 18:42           ` remember(-diary).el Michael Olson
2007-11-30 19:06             ` remember(-diary).el Glenn Morris
2007-11-30 22:11               ` remember(-diary).el Michael Olson
2007-11-30 22:22                 ` remember(-diary).el Leo
2007-12-01  9:07                   ` remember(-diary).el Eli Zaretskii
2007-12-01  9:56                     ` remember(-diary).el David Kastrup
2007-12-01  9:06                 ` remember(-diary).el Eli Zaretskii
2007-12-02 21:33                   ` remember(-diary).el Michael Olson
2007-12-03  4:18                     ` remember(-diary).el Eli Zaretskii
2007-12-03 15:13                       ` remember(-diary).el Michael Olson
2007-12-03 15:44                         ` remember(-diary).el Lennart Borgman (gmail)
2007-12-03  1:05                   ` remember(-diary).el Michael Olson
2007-12-03  4:22                     ` remember(-diary).el Eli Zaretskii
2007-12-03 14:40                       ` remember(-diary).el Stefan Monnier
2007-12-03 20:51                         ` remember(-diary).el Eli Zaretskii
2007-12-01 17:59             ` remember(-diary).el Richard Stallman
2007-11-30 20:57         ` remember(-diary).el Eli Zaretskii
2007-11-30 22:07           ` remember(-diary).el Michael Olson
2007-12-05  1:22       ` remember(-diary).el Michael Olson
2007-12-05  4:46         ` remember(-diary).el Eli Zaretskii
2007-11-21 18:24 ` remember(-diary).el Sven Joachim
2007-11-21 18:54   ` remember(-diary).el Eli Zaretskii
2007-11-22 13:32   ` remember(-diary).el martin rudalics
2007-11-22 23:57     ` remember(-diary).el Juri Linkov

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