From: Kevin Rodgers <kevin.d.rodgers@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: odt file instant open
Date: Wed, 28 Jul 2010 07:10:34 -0600 [thread overview]
Message-ID: <i2pa82$ej4$1@dough.gmane.org> (raw)
In-Reply-To: <4C4F1889.3020606@easy-emacs.de>
Andreas Röhler wrote:
> Am 27.07.2010 18:58, schrieb Eli Zaretskii:
>>> Date: Tue, 27 Jul 2010 09:30:32 +0200
>>> From: Andreas Röhler<andreas.roehler@easy-emacs.de>
>>>
>>> Am 26.07.2010 18:29, schrieb Olwe Melwasul:
>>>> I'm trying to grok the open document format, so I took the first wild
>>>> and crazy step of simply trying to open it in Emacs (23.2.1) -- and it
>>>> opened up to a "Zip-Archive Narrow" view of all the files contained
>>>> therein Poking around on the Internet, I found that Emacs
>>>> automatically unpacks a .odt file, which is nothing more than a zip
>>>> file. My question is this: How is Emacs doing this?
>>>
>>> by calling a shell-command resp. to the ending found.
>>
>> No. For most archive types, arc-mode.el (and tar-mode.el) can list
>> the contents directly, just by reading the archive file itself.
>> Extracting the individual files in the archive sometimes needs to run
>> an external program.
>
> Hi,
>
> think you mistook the question.
> As the OP wrote, he just opened the file without any precaution. The
> surprise was: it worked.
>
> Ignoring so for how opening was done in detail --via find-file or from
> dired probably--
I think you misread the question, that is exactly what the OP asked about:
How is Emacs doing this? What code is
running (what .el is invoked) to make this happen?
> arc-mode seems not involved, but auto-compression-mode
> from jka-cmpr-hook.el etc.
This entry from auto-mode-alist suggests otherwise:
("\\.\\(sx[dmicw]\\|od[fgpst]\\|oxt\\)\\'" . archive-mode)
> BTW arc-mode too recurs to shell-commands AFAIS,
> (apply 'call-process
> in archive-*-extract for example
Good point, which Eli made above as well. Here's what arc-mode.el says:
;; This code does not decode any files internally, although it does
;; understand the directory level of the archives.
--
Kevin Rodgers
Denver, Colorado, USA
next prev parent reply other threads:[~2010-07-28 13:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-26 16:29 odt file instant open Olwe Melwasul
2010-07-27 7:30 ` Andreas Röhler
2010-07-27 10:33 ` Thien-Thi Nguyen
2010-07-27 16:58 ` Eli Zaretskii
2010-07-27 17:34 ` Andreas Röhler
2010-07-28 13:10 ` Kevin Rodgers [this message]
2010-07-28 14:32 ` Andreas Röhler
[not found] ` <mailman.4.1280327317.17798.help-gnu-emacs@gnu.org>
2010-07-28 23:08 ` Stefan Monnier
[not found] ` <mailman.11.1280251781.6519.help-gnu-emacs@gnu.org>
2010-07-27 20:53 ` Stefan Monnier
2010-07-27 16:55 ` Eli Zaretskii
2010-09-25 3:03 ` Jason White
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