From: David Kastrup <dak@gnu.org>
Cc: emacs-devel@gnu.org, teirllm@dms.auburn.edu,
Stefan Monnier <monnier@iro.umontreal.ca>,
rms@gnu.org, miles@gnu.org
Subject: Re: file-name-shadow-mode
Date: Mon, 21 Mar 2005 16:14:57 +0100 [thread overview]
Message-ID: <x5sm2pf2tq.fsf@lola.goethe.zz> (raw)
In-Reply-To: <fc339e4a05032106267318b1b1@mail.gmail.com> (Miles Bader's message of "Mon, 21 Mar 2005 23:26:20 +0900")
Miles Bader <snogglethorpe@gmail.com> writes:
> On Mon, 21 Mar 2005 08:24:38 -0500, Stefan Monnier
> <monnier@iro.umontreal.ca> wrote:
>> How 'bout the patch below which makes no assumption (that I know of) about
>> substitute-in-file-name, and will thus correctly even with weird
>> magic file name handlers.
>
> Um, I should note that the original code was designed to be fast and
> not cons unnecessarily, because it runs on every keystroke -- that's
> the reason it uses just a regexp match and a move-overlay. Your
> suggested replacement looks ... less careful.
substitute-in-file-name is a built-in function in `C source code'.
(substitute-in-file-name FILENAME &optional PARSEINFO)
Substitute environment variables referred to in FILENAME.
`$FOO' where FOO is an environment variable name means to substitute
the value of that variable. The variable name should be terminated
with a character not a letter, digit or underscore; otherwise, enclose
the entire variable name in braces.
If `/~' appears, all of FILENAME through that `/' is discarded.
On VMS, `$' substitution is not done; this function does little and only
duplicates what `expand-file-name' does.
If PARSEINFO is not NIL, it is a list used or reused for storing
parsing information (it is extended as necessary).
Elements 2N point to positions in the original string, Elements 2N+1
to corresponding positions in the substituted string.
[...]
Something like that. And then one looks for the last [x,0] pair in
the list, and x is the position from which to shadow.
No consing done except when the syntax changes on entry.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
next prev parent reply other threads:[~2005-03-21 15:14 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-17 9:16 file-name-shadow-mode David Kastrup
2005-03-17 12:16 ` file-name-shadow-mode Matt Hodges
2005-03-18 1:56 ` file-name-shadow-mode Miles Bader
2005-03-18 1:59 ` file-name-shadow-mode Miles Bader
2005-03-18 2:17 ` file-name-shadow-mode Nick Roberts
2005-03-18 4:35 ` file-name-shadow-mode Luc Teirlinck
2005-03-18 4:47 ` file-name-shadow-mode Stefan Monnier
2005-03-18 4:55 ` file-name-shadow-mode Luc Teirlinck
2005-03-18 5:18 ` file-name-shadow-mode Luc Teirlinck
2005-03-18 5:37 ` file-name-shadow-mode Luc Teirlinck
2005-03-18 18:20 ` file-name-shadow-mode Richard Stallman
2005-03-19 15:21 ` file-name-shadow-mode Luc Teirlinck
2005-03-19 15:45 ` file-name-shadow-mode David Kastrup
2005-03-19 16:45 ` file-name-shadow-mode Stefan Monnier
2005-03-20 2:14 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 14:13 ` file-name-shadow-mode Stefan Monnier
2005-03-20 16:02 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 16:18 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 2:30 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 3:33 ` file-name-shadow-mode Miles Bader
2005-03-20 4:28 ` file-name-shadow-mode David Kastrup
2005-03-20 17:30 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 18:10 ` file-name-shadow-mode David Kastrup
2005-03-21 1:19 ` file-name-shadow-mode Richard Stallman
2005-03-20 18:01 ` file-name-shadow-mode Richard Stallman
2005-03-20 18:24 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 18:47 ` file-name-shadow-mode David Kastrup
2005-03-20 21:11 ` file-name-shadow-mode Luc Teirlinck
2005-03-20 21:25 ` file-name-shadow-mode Luc Teirlinck
2005-03-21 13:44 ` file-name-shadow-mode Stefan Monnier
2005-03-21 22:24 ` file-name-shadow-mode Luc Teirlinck
2005-03-21 23:00 ` file-name-shadow-mode Stefan Monnier
2005-03-22 20:44 ` file-name-shadow-mode Richard Stallman
2005-03-28 21:32 ` file-name-shadow-mode Stefan Monnier
2005-03-21 13:24 ` file-name-shadow-mode Stefan Monnier
2005-03-21 14:05 ` file-name-shadow-mode David Kastrup
2005-03-21 16:48 ` file-name-shadow-mode Stefan Monnier
2005-03-22 3:34 ` file-name-shadow-mode Richard Stallman
2005-03-21 14:26 ` file-name-shadow-mode Miles Bader
2005-03-21 15:14 ` David Kastrup [this message]
2005-03-21 15:47 ` file-name-shadow-mode David Kastrup
2005-03-21 16:58 ` file-name-shadow-mode Stefan Monnier
2005-03-21 23:57 ` file-name-shadow-mode Luc Teirlinck
2005-03-23 22:55 ` file-name-shadow-mode Stefan Monnier
2005-03-24 0:04 ` file-name-shadow-mode David Kastrup
2005-03-25 6:42 ` file-name-shadow-mode Richard Stallman
2005-03-25 8:45 ` file-name-shadow-mode David Kastrup
2005-03-18 5:23 ` file-name-shadow-mode Richard Stallman
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