From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.bugs Subject: bug#35383: 27.0.50; Complete process of decoding Gnus group names Date: Sun, 28 Apr 2019 21:07:23 -0700 Message-ID: <878svtihdw.fsf@ericabrahamsen.net> References: <878sw1995f.fsf@ericabrahamsen.net> <87sgu87ayo.fsf@ericabrahamsen.net> <87k1fj49o2.fsf@ericabrahamsen.net> <87bm0uhxqy.fsf@ericabrahamsen.net> <87d0l5ihgr.fsf@ericabrahamsen.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="160127"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 35383@debbugs.gnu.org To: Katsumi Yamaoka Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Apr 29 06:08:10 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hKxaM-000fX0-L1 for geb-bug-gnu-emacs@m.gmane.org; Mon, 29 Apr 2019 06:08:10 +0200 Original-Received: from localhost ([127.0.0.1]:51681 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hKxaL-0008MN-Kp for geb-bug-gnu-emacs@m.gmane.org; Mon, 29 Apr 2019 00:08:09 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:33863) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hKxaE-0008MI-VS for bug-gnu-emacs@gnu.org; Mon, 29 Apr 2019 00:08:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hKxaD-00043C-SE for bug-gnu-emacs@gnu.org; Mon, 29 Apr 2019 00:08:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52893) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hKxaD-000435-OR for bug-gnu-emacs@gnu.org; Mon, 29 Apr 2019 00:08:01 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hKxaD-0003U3-Hr for bug-gnu-emacs@gnu.org; Mon, 29 Apr 2019 00:08:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eric Abrahamsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 29 Apr 2019 04:08:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 35383 X-GNU-PR-Package: emacs Original-Received: via spool by 35383-submit@debbugs.gnu.org id=B35383.155651085413358 (code B ref 35383); Mon, 29 Apr 2019 04:08:01 +0000 Original-Received: (at 35383) by debbugs.gnu.org; 29 Apr 2019 04:07:34 +0000 Original-Received: from localhost ([127.0.0.1]:38204 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hKxZl-0003TN-Tg for submit@debbugs.gnu.org; Mon, 29 Apr 2019 00:07:34 -0400 Original-Received: from ericabrahamsen.net ([52.70.2.18]:59168 helo=mail.ericabrahamsen.net) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hKxZk-0003TC-Jd for 35383@debbugs.gnu.org; Mon, 29 Apr 2019 00:07:33 -0400 Original-Received: from localhost (97-113-61-17.tukw.qwest.net [97.113.61.17]) (Authenticated sender: eric@ericabrahamsen.net) by mail.ericabrahamsen.net (Postfix) with ESMTPSA id D7ABCFA027; Mon, 29 Apr 2019 04:07:26 +0000 (UTC) In-Reply-To: <87d0l5ihgr.fsf@ericabrahamsen.net> (Eric Abrahamsen's message of "Sun, 28 Apr 2019 21:05:40 -0700") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:158414 Archived-At: Eric Abrahamsen writes: > Katsumi Yamaoka writes: > >> On Thu, 25 Apr 2019 09:10:13 -0700, Eric Abrahamsen wrote: >>> On 04/25/19 08:48 AM, Katsumi Yamaoka wrote: >> >>>> Warning: Warning - invalid active: >> >>>> for the nnnil method, that is my `gnus-select-method'. Here are >>>> the contents of ~/News/agent/nnnil/agent.lib/active: >> >>>> --8<---------------cut here---------------start------------->8--- >>>> ;; -*- encoding: utf-8-emacs; -*- >> >>>> --8<---------------cut here---------------end--------------->8--- >> >>>> Why the warning is issued is to run (read (current-buffer)) at >>>> the beginning of the contents. This is actually an error but >>>> `condition-case' conceals it. >> >>> Hmm, this is all done in a temp buffer, >> >> Yes. When launching Gnus, the whole contents of the active file >> are read into the " *nntpd*" buffer, copied into the temp buffer, >> and parsed (see the flow summary attatched in the bottom of this >> message for how Gnus behaves when launching). >> >>> with >>> `insert-buffer-substring' -- I wonder if the encoding cookie will even >>> be honored in this case? >> >> No, it's useless of course. Moreover, --- I changed my idea >> (patching the `gnus-active-to-gnus-format' function so as to >> ignore the coding cookie) --- I come to think that the active >> file should not contain the ones other than the active infos. >> Gnus indeed ignores the coding cookie when parsing active, but >> it is due to just a lucky side effect of `read': >> >> (read ";; coding cookie\n\nactive_info\n") => active_info >> >> I.e., `read' ignores comments in the ELisp style and whitespace. >> However, in the first place, the active file is neither an ELisp >> file nor there is no agreement for a comment style in it. So, I >> think it is better to bind `coding-system-for-(read|write)' while >> reading and writing the active file rather than adding a coding >> cookie. Though binding `coding-system-for-(read|write)' would >> probably be unnecessary since `gnus-write-active-file' binds >> `coding-system-for-write' to `nnmail-active-file-coding-system', >> and `gnus-agent-save-active' binds `coding-system-for-read' to >> `gnus-agent-file-coding-system' that defaults to `utf-8-emacs'. >> Therefore, adding a coding cookie was originally unnecessary, >> wasn't it? >> >> Here are how Gnus reads the active file for the nnnil method >> observed in my system. Note that `gnus-agent' is t (the default). >> >> (gnus 1) >> [...] >> (gnus-setup-news nil t nil) >> (gnus-get-unread-articles 1 nil) >> (require 'gnus-agent) >> (with-current-buffer " *nntpd*" >> (gnus-read-active-file-1 '(nnnil) nil) >> (gnus-active-to-gnus-format '(nnnil) hashtb nil t) >> (gnus-agent-save-active '(nnil)) >> (gnus-agent-write-active "active-file" hashtb) >> ;; Add a coding cookie. >> (gnus-write-active-file "active-file" hashtb nil) >> (erase-buffer) >> (nnheader-insert-file-contents "active-file") >> (_copy to_ " *nntpd*") >> (_parse it_) > > Hang on, let me slow down here. > > The goal is to have Gnus default to writing its active files in > 'utf-8-emacs, unless the user has specifically requested otherwise. > `nnmail-active-file-coding-system' governs the "mail" type servers, and > `gnus-agent-file-coding-system' governs the agent. Currently those two > options default to 'raw-text, we'd like them to default to 'utf-8-emacs. Actually, maybe that's wrong. We don't care how the files are written, only that, after parsing, the group names are successfully _decoded_ to 'utf-8-emacs. Maybe I'm trying too hard?