From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.devel Subject: Re: Please install: Some improvements to doc-view.el Date: Wed, 10 Oct 2007 00:54:45 +0300 Organization: JURTA Message-ID: <87bqb8rmk2.fsf@jurta.org> References: <87bqbhkhc6.fsf@baldur.tsdh.de> <58152.128.165.0.81.1191330286.squirrel@webmail.lanl.gov> <878x6ljwb4.fsf@baldur.tsdh.de> <87fy0r2u3z.fsf@baldur.tsdh.de> <87wsu1sear.fsf@baldur.tsdh.de> <878x6gqqfa.fsf@baldur.tsdh.de> <87abqt2x52.fsf@jurta.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1191967172 19231 80.91.229.12 (9 Oct 2007 21:59:32 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 9 Oct 2007 21:59:32 +0000 (UTC) Cc: emacs-devel@gnu.org To: rms@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Oct 09 23:59:30 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1IfN6r-0006sX-S5 for ged-emacs-devel@m.gmane.org; Tue, 09 Oct 2007 23:59:26 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IfN6m-00015W-4e for ged-emacs-devel@m.gmane.org; Tue, 09 Oct 2007 17:59:20 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IfN6j-00014F-E6 for emacs-devel@gnu.org; Tue, 09 Oct 2007 17:59:17 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IfN6h-00011T-Ee for emacs-devel@gnu.org; Tue, 09 Oct 2007 17:59:16 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IfN6h-00011D-8m for emacs-devel@gnu.org; Tue, 09 Oct 2007 17:59:15 -0400 Original-Received: from mailman.kiev.sovam.com ([89.162.150.100]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IfN6c-0000Iy-Jy; Tue, 09 Oct 2007 17:59:10 -0400 Original-Received: from relay01.kiev.sovam.com ([62.64.120.200]) by mailman.kiev.sovam.com with esmtp (Exim 4.63 (FreeBSD)) (envelope-from ) id 1IfPti-000FKj-05; Wed, 10 Oct 2007 00:58:02 +0000 Original-Received: from [83.170.232.243] (helo=smtp.svitonline.com) by relay01.kiev.sovam.com with esmtp (Exim 4.67) (envelope-from ) id 1IfN6Z-000IZV-85; Wed, 10 Oct 2007 00:59:08 +0300 In-Reply-To: (Richard Stallman's message of "Tue\, 09 Oct 2007 16\:03\:00 -0400") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/23.0.50 (gnu/linux) X-Scanner-Signature: bf674e48040b805769da4ba4af5b826b X-DrWeb-checked: yes X-SpamTest-Envelope-From: juri@jurta.org X-SpamTest-Group-ID: 00000000 X-SpamTest-Header: Not Detected X-SpamTest-Info: Profiles 1578 [Oct 09 2007] X-SpamTest-Info: helo_type=3 X-SpamTest-Info: {HEADERS: header Content-Type found without required header Content-Transfer-Encoding} X-SpamTest-Method: none X-SpamTest-Rate: 25 X-SpamTest-Status: Not detected X-SpamTest-Status-Extended: not_detected X-SpamTest-Version: SMTP-Filter Version 3.0.0 [0255], KAS30/Release X-Detected-Kernel: FreeBSD 6.x (1) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:80483 Archived-At: > DocView and the Gnus mailcap mechanism are unrelated features. > > They are related because they do the same job: display non-textual > formats for Emacs. They work in different ways, but each can still > substitute for the other. If you have a PDF or PS or DVI file, you > can display it either with doc-view or with the Gnus mailcap > mechanism. > > So do we really want both methods? If so, when should each > method be used? Or how should the user choose? I think both methods are very useful. The Gnus mailcap mechanism provides several alternatives of external programs to run. There are many different file types associated with programs in the mailcap file, not only documents supported by doc-view. But OTOH, doc-view provides more convenient way of viewing supported file types (PDF/PS/DVI) inside Emacs, not in external programs. > The current code chooses the mailcap mechanism when in Gnus, > and now we have a proposal for Dired to use the doc-view mechanism. There is already a file lisp/gnus/gnus-dired.el that binds `C-c C-m C-l' in Dired to the command that runs the program found in the mailcap file. But I think a better way would be to allow the user to select the preferred program, inspect the command line and be able to edit the command line before running a command. This can be achieved by putting program names found by the Gnus mailcap mechanism to the default value in the minibuffer activated after typing ! in Dired. A for doc-view, since it displays rendered images inside Emacs buffers, there is no need to activate it only from Dired. Visiting a PDF/PS/DVI file in any way including `C-x C-f' could put it in doc-view mode. And if the user want to see its source text, then the user can type `C-c C-c' just like in image-mode. -- Juri Linkov http://www.jurta.org/emacs/