From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Daniel_Mart=C3=ADn?= Newsgroups: gmane.emacs.devel Subject: Re: Question: estimating size of a buffer when written to file? Date: Wed, 08 Dec 2021 17:29:46 +0100 Message-ID: References: <3703D806-12C4-4EE6-ADB8-8A006D7AFC35@mit.edu> <87a6hbw0ts.fsf@gmx.net> <5F5ECF4B-77A1-4C3A-A665-54207AC6A1BF@mit.edu> <875yrzw0er.fsf@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13335"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (darwin) Cc: Qiantan Hong , "emacs-devel@gnu.org" To: Stephen Berman Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Dec 08 17:31:38 2021 Return-path: Envelope-to: ged-emacs-devel@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 1muzqy-0003Cb-O7 for ged-emacs-devel@m.gmane-mx.org; Wed, 08 Dec 2021 17:31:36 +0100 Original-Received: from localhost ([::1]:42556 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1muzqw-0005QL-TQ for ged-emacs-devel@m.gmane-mx.org; Wed, 08 Dec 2021 11:31:34 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:40646) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1muzpP-00044I-NF for emacs-devel@gnu.org; Wed, 08 Dec 2021 11:29:59 -0500 Original-Received: from sonic311-31.consmr.mail.ir2.yahoo.com ([77.238.176.163]:44427) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1muzpN-0006nI-99 for emacs-devel@gnu.org; Wed, 08 Dec 2021 11:29:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.es; s=s2048; t=1638980993; bh=t//MVrd4LLkkyB/xhr9sYjCutkzqOhpT64BcAkxtoOw=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From:Subject:Reply-To; b=i8Xr/B6Ys494g1Nv4E1VADDjOQYgadX5Y/X8LXInu3f2azjpe4FWFMb7wdg4lNUKWYMzBHWGQEL3xHiI/kX9R9Zi9sLpPww/68g92kSA1UvHxSIw91seUqkB9/cY1X0starL84fhuKlIzUaQLLq05NzhcDFBISP3XV2Py4ndzqLpQyqe9eGybRTUEvie/lht8BEeQ5eCB0HeyVJbpAcD/9zfFU6XLLZS/22eFqe9eEaVPdWZuXIOld7862xfwfxNHYtMOX6e54GOE9DomUyfJMaXJ+pIHyFfCEP5JCqcvOlJvkbQxutZbdMBjYIbDfDzy20OrDr9mXyk8mWfU3JjPA== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1638980993; bh=zaFSdKHDfAG5+yffMxn2rHJyPRy9ClqKugVJSaYj4cJ=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=dnMtZmbSd3HVRTSC3UWS9KZr6E3vDgsl2aSK6SBGDuijvvjzMteq7csuNiPOyljHsavPuJl6SZvq2ls+LRPGtp+eWfuFaQCwO1rdyxfI6/SRJVLw9to0Otfl4X0edYkPRKeiZfq5AmTMqllMBuN02ZbKeI3MKAAPxSYzU9Z2mYgnB3h3Z3D+VE/sl3jWC9eOYsIj97NgbHMv0AfA9hE2MtYXFUcg9FnDGjsGqPMDuHyJ1clgMkThBKgGA6dRVptyXlMJ0kPxJokbSfZwoW9paC/tELHC6fO+TgLmwiVwQwX6Bs9qeJZGIdol2D63gpJlepMgtg9FXZxKMeEWgXmvnQ== X-YMail-OSG: sBhmmjcVM1neymcYLHk.sPOvStliPmsCi7X_Da48ZTfXCEcYHkoc0jh.VTmt0ou FvhB6KvyWFkYyScjTdywfRr5b9.33678pwyQElaXywWcAeFYsQ2I8UDYkDuDSPcCROWbZyTL9deY OExCGk4vXrQ_4kOOlW8BaGTyEvocv890rtNDcXeNuLNBo3frG6iuAzuu8hji4JVJVqynWe1A2vq9 bQ8n3_a9bsFabwXkSadiqUJPWY7_VkfaAfRHNO59ynNX7mCsthFzIyfl7xm8ScYyYna5OwRX7Xtd DxLfSxh0MIa9OgMOWT51SNexZdFkeuvWiShJcE9jhbfwz9YIR_8LOk1HpIJSEmH0GDta28NspZfQ cNddU_FzCegXtSRk3Dyga3dW0fQzQy7heJG8A06GozW3TboJOOw2HkbvD8nu9EkFa71SObwMBYfE fHxC6Mc6ZoP7SbvEZNZVdgD_5Rl7EnTuSkF9.al7juItyFIn7PpJxeCnqET8itVONioPN1UCqrIM n3D0MMGWfxnCo44UutBe9VdvLcDlUmanIsgXlMBC.RfQ6aapz3i1H1kX5gINZEVfp11Uh9I9K72q gQSTeZTEXS2zg4sd43PIQPOJtv7Gg.EppkI55dfOZ8hZcI9pRKE455HTrtzfndKUmWI7XzMMOhtH ZN3ZG4TUc_uHe0N9kf9v7YZ4LI0U13i1nLOwyGkk2Xl_NIYcd6BUrITbxQlG9D5MEPK4DthB0FhH MbAh.zzl5mOPbMvz1zZUnkc4K04AQuXhIBGhanti_4U.mRu.Q3uNXWwOo_U0.Fs6RuKzOvPLBgtR 0_Firqs8BzHPBgUxaPS.jHAhLMPiioquZupD5BvFok X-Sonic-MF: Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic311.consmr.mail.ir2.yahoo.com with HTTP; Wed, 8 Dec 2021 16:29:53 +0000 Original-Received: by kubenode513.mail-prod1.omega.ir2.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 5a74be76b59335099b5d0799f696bae2; Wed, 08 Dec 2021 16:29:47 +0000 (UTC) In-Reply-To: <875yrzw0er.fsf@gmx.net> (Stephen Berman's message of "Wed, 08 Dec 2021 17:01:48 +0100") X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=77.238.176.163; envelope-from=mardani29@yahoo.es; helo=sonic311-31.consmr.mail.ir2.yahoo.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:281366 Archived-At: Stephen Berman writes: > On Wed, 8 Dec 2021 15:55:42 +0000 Qiantan Hong wrote: > >>> Is (string-bytes (buffer-string)) not reliable? >>>=20 >>> Steve Berman >> I=E2=80=99m not very familiar with different kinds of encoding, >> but would some coding system result in final >> writes longer than internal string-bytes? > > I'm afraid I don't know either. > Yes, if the coding system is not the UTF-8 variant used by Emacs internally, the result won't be accurate for some scripts. You need to encode the contents of the buffer/string using the value of buffer-file-coding-system, for example, and call string-bytes on it.