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From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Eli Zaretskii <eliz@gnu.org>
Cc: sds@gnu.org, emacs-devel@gnu.org
Subject: Re: convert-standard-filename
Date: Tue, 09 Aug 2011 14:36:18 -0400	[thread overview]
Message-ID: <jwvwremcu2v.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <E1QqejG-00025z-Ms@fencepost.gnu.org> (Eli Zaretskii's message of "Tue, 09 Aug 2011 01:19:50 -0400")

>> (defun file-name-equal (f1 f2)
>> (equal (file-name-canonical f1) (file-name-canonical f2)))

> Another slippery slope, IMO: on some platforms the "canonical" file
> name cannot be computed unless the file exists.  Unless you redefine
> "canonical" to be a derivative of file-name-equal according to the
> above defun, in which case it will probably confuse the heck out of
> programmers who are used to canonicalize_file_name and realpath.

Again, I'm not necessarily advocating this approach.  It does have
some advantages (e.g. if you want to define a map (alist/hash) from file
names to values, where file names need to be compared with
file-name-equal).  But it may indeed prove impossible/impractical
to implement.


        Stefan



  parent reply	other threads:[~2011-08-09 18:36 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1QjaPL-0003HL-TM@colonialone.fsf.org>
2011-08-02  3:39 ` [Emacs-diffs] /srv/bzr/emacs/trunk r105295: * lisp/progmodes/etags.el (etags-file-of-tag, etags-tags-table-files) Stefan Monnier
2011-08-02  4:34   ` Sam Steingold
2011-08-02  4:51   ` Eli Zaretskii
2011-08-02 18:57     ` Stefan Monnier
2011-08-02 19:12       ` Eli Zaretskii
2011-08-02 20:24         ` Stefan Monnier
2011-08-03  9:05           ` Eli Zaretskii
2011-08-05 17:18             ` convert-standard-filename (was: [Emacs-diffs] /srv/bzr/emacs/trunk r105295: * lisp/progmodes/etags.el (etags-file-of-tag, etags-tags-table-files)) Stefan Monnier
2011-08-06  7:20               ` Eli Zaretskii
2011-08-07 15:33                 ` convert-standard-filename Stefan Monnier
2011-08-07 15:43                   ` convert-standard-filename Lennart Borgman
2011-08-07 19:43                     ` convert-standard-filename Stefan Monnier
2011-08-07 22:05                       ` convert-standard-filename Lennart Borgman
2011-08-08  2:54                         ` convert-standard-filename Eli Zaretskii
2011-08-08  3:23                           ` convert-standard-filename Lennart Borgman
2011-08-08  4:19                             ` convert-standard-filename Eli Zaretskii
2011-08-08  4:26                               ` convert-standard-filename Lennart Borgman
2011-08-08  4:38                                 ` convert-standard-filename Eli Zaretskii
2011-08-08 10:37                                   ` convert-standard-filename Lennart Borgman
2011-08-08 11:31                                     ` convert-standard-filename Eli Zaretskii
2011-08-08 17:15                                       ` convert-standard-filename Lennart Borgman
2011-08-07 16:18                   ` convert-standard-filename Eli Zaretskii
2011-08-07 16:22                     ` convert-standard-filename Lennart Borgman
2011-08-07 20:19                     ` convert-standard-filename Stefan Monnier
2011-08-07 20:35                       ` convert-standard-filename Eli Zaretskii
2011-08-07 21:20                         ` convert-standard-filename Sam Steingold
2011-08-08  2:53                           ` convert-standard-filename Eli Zaretskii
2011-08-08  3:24                           ` convert-standard-filename Stefan Monnier
2011-08-08  4:14                             ` convert-standard-filename Eli Zaretskii
2011-08-08 18:20                               ` convert-standard-filename Stefan Monnier
2011-08-08 19:14                                 ` convert-standard-filename Eli Zaretskii
2011-08-08 21:24                                   ` convert-standard-filename Stefan Monnier
2011-08-09  5:19                                     ` convert-standard-filename Eli Zaretskii
2011-08-09 18:33                                       ` convert-standard-filename Stefan Monnier
2011-08-09 18:36                                       ` Stefan Monnier [this message]
2011-08-08  7:33                       ` convert-standard-filename Michael Albinus
2011-08-02  8:11   ` [Emacs-diffs] /srv/bzr/emacs/trunk r105295: * lisp/progmodes/etags.el (etags-file-of-tag, etags-tags-table-files) Francesco Potortì
2011-08-02 15:33     ` Sam Steingold
2011-08-02 18:55       ` Stefan Monnier

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