From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Joe Riel Newsgroups: gmane.emacs.help Subject: Re: Replacement for string-as-unibyte-function Date: Sun, 31 Jan 2021 21:55:55 -0800 Message-ID: <20210131215555.547fb92e@gauss> References: <20210131150133.0fd3b42f@gauss> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9400"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs@gnu.org To: Stefan Monnier Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Mon Feb 01 06:56:35 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l6SCQ-0002LN-W0 for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 01 Feb 2021 06:56:34 +0100 Original-Received: from localhost ([::1]:36048 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l6SCQ-0003HH-2F for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 01 Feb 2021 00:56:34 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45992) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l6SBu-0003GI-3G for help-gnu-emacs@gnu.org; Mon, 01 Feb 2021 00:56:02 -0500 Original-Received: from p-impout008aa.msg.pkvw.co.charter.net ([47.43.26.139]:55002 helo=p-impout008.msg.pkvw.co.charter.net) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l6SBr-0002hn-Ha for help-gnu-emacs@gnu.org; Mon, 01 Feb 2021 00:56:01 -0500 Original-Received: from gauss ([75.80.191.41]) by cmsmtp with ESMTP id 6SBnl73P3Wkb16SBnlI58j; Mon, 01 Feb 2021 05:55:56 +0000 X-Authority-Analysis: v=2.3 cv=X+cs11be c=1 sm=1 tr=0 a=+5CDr9/63YJEsolaBHb2hg==:117 a=+5CDr9/63YJEsolaBHb2hg==:17 a=kj9zAlcOel0A:10 a=iRZporoAAAAA:8 a=wIWLcj9kD0-Nsy5cOsEA:9 a=CjuIK1q_8ugA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 In-Reply-To: X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) X-CMAE-Envelope: MS4wfEWayGhdqTV5TIjvIShE46E0TQjNPVG9oWTbbqr/mv4JsEk8Pq59JCUGhsUh8ZF9O7qF7zrlo9zbAntka3ldkoGW9Q+PXRLME+CVbZatnoD2MmZe+Jl0 I8OyTum0xFnwFzdVRtUYcqCKp3V29OTWo8gKOuMSsEUKYRITrifX/XThTDNhhzgOSUmhagA6msRkug== Received-SPF: pass client-ip=47.43.26.139; envelope-from=joer@san.rr.com; helo=p-impout008.msg.pkvw.co.charter.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:127510 Archived-At: On Sun, 31 Jan 2021 22:03:42 -0500 Stefan Monnier wrote: > > Am handling a message passed in from an external process > > (its passed in chunks). > > > > The header of the message specifies its length, in bytes. > > Some of the characters may be unicode. Am using > > buffer-substring-no-properties to later extract the message. > > To get its length write, each byte has to be a character in the buffer. > > So make sure the buffer in which the process writes is unibyte with > > (set-buffer-multibyte nil) > > and make sure Emacs doesn't try to decode the process's output: > > (set-process-coding-system 'binary) > > (which you can also set directly when you launch the process, but how > you do it depends on the function you use to create the process). I'm actually using make-network-process (to communicate via tls). The filter function inserts the string into a buffer. I tried using (set-buffer-multibyte nil) and (insert string), but that doesn't work. What does work is omitting the call to set-buffer-multibyte and using (insert (encode-coding-string string 'utf-8-unix)). Previously I used (insert (string-as-unibyte string)). -- Joe Riel