From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#53260: char-syntax differs in interpreter and bytecode Date: Sat, 15 Jan 2022 09:46:30 -0500 Message-ID: References: <0A87E4BA-4741-4688-A005-912ABFC86B83@acm.org> <8735lpmm4f.fsf@gnus.org> Reply-To: Stefan Monnier 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="7505"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= , 53260@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jan 15 15:47:24 2022 Return-path: Envelope-to: geb-bug-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 1n8kKx-0001iu-I1 for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 Jan 2022 15:47:23 +0100 Original-Received: from localhost ([::1]:40852 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n8kKw-0004sw-F8 for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 Jan 2022 09:47:22 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:46696) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8kKb-0004sn-W5 for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:47:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46699) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n8kKb-0006so-Lq for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:47:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1n8kKb-0003Mt-Lb for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:47:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 15 Jan 2022 14:47:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53260 X-GNU-PR-Package: emacs Original-Received: via spool by 53260-submit@debbugs.gnu.org id=B53260.164225800212914 (code B ref 53260); Sat, 15 Jan 2022 14:47:01 +0000 Original-Received: (at 53260) by debbugs.gnu.org; 15 Jan 2022 14:46:42 +0000 Original-Received: from localhost ([127.0.0.1]:39602 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n8kKH-0003ME-Lm for submit@debbugs.gnu.org; Sat, 15 Jan 2022 09:46:41 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:29744) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n8kKE-0003Lx-Uj for 53260@debbugs.gnu.org; Sat, 15 Jan 2022 09:46:40 -0500 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id BA767440CB2; Sat, 15 Jan 2022 09:46:32 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 5DCF0440C89; Sat, 15 Jan 2022 09:46:31 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1642257991; bh=yXyo3veV8B+Ukq7PiACYOu6IEcQPDV0pRHezAB2AKrg=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=RD4Vyqn+hlhdTkTAm2J0wbi4NXsJGid6zmdCztXgXtCECimgLehGgRegjKs0zQ01U FhZDuQ6BIZQdsdX3sTdT/bEG0jitagWiGNzlzMhsTvVf7CLQFlljyAEUxoOfzOGGNP Lk5Ok4X/xTt3mL4EYojd6JJziWcMwZVrv8Gxq20atJvb4/cvgmNX5l8UkAj0H40/XX vFfuFXLi054UKms5q0VsRsBAg/KblnrXs13HGib2CxJ+2BIESD7nV9GdSPgYeSvslv GMMXyKdSMbdOvpPtMDpWdbxeEARrLPzEZ1RbtOpx3c5DVcl48IoGOxnoHhROMARQZR Tqrbl4QGwJZLw== Original-Received: from pastel (unknown [216.154.30.173]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 1E335120403; Sat, 15 Jan 2022 09:46:31 -0500 (EST) In-Reply-To: <8735lpmm4f.fsf@gnus.org> (Lars Ingebrigtsen's message of "Sat, 15 Jan 2022 09:36:16 +0100") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:224313 Archived-At: Lars Ingebrigtsen [2022-01-15 09:36:16] wrote: > Mattias Engdeg=C3=A5rd writes: >> Fchar_syntax and the bytecode Bchar_syntax differ: >> Fchar_syntax calls SETUP_BUFFER_SYNTAX_TABLE. Bchar_syntax does not. >> Bchar_syntax converts arguments to multibyte. Fchar_syntax does not. > [...] >> And, most importantly, what would be the correct code? > Hm. Perhaps Stefan has an opinion; added to the CCs. My past opinion is in its docstring: If you=E2=80=99re trying to determine the syntax of characters in the b= uffer, this is probably the wrong function to use, because it can=E2=80=99t ta= ke =E2=80=98syntax-table=E2=80=99 text properties into account. Consider = using =E2=80=98syntax-after=E2=80=99 instead. The "can't" is because `char-syntax` doesn't know where the char comes from. >> (I suppose char-syntax is rare enough that we could call Fchar_syntax >> from Bchar_syntax and thus avoid any future divergence.) > Used 172 times in-core, which isn't that rare... I think he meant "rare" w.r.t dynamic count rather than static count. Stefan