From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Using syntax tables to parse buffer content Date: Mon, 24 May 2021 17:07:04 -0400 Message-ID: References: <87o8czopcj.fsf@ericabrahamsen.net> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8950"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Eric Abrahamsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon May 24 23:08:26 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 1llHoH-00029p-St for ged-emacs-devel@m.gmane-mx.org; Mon, 24 May 2021 23:08:25 +0200 Original-Received: from localhost ([::1]:37772 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1llHoG-0003o7-LW for ged-emacs-devel@m.gmane-mx.org; Mon, 24 May 2021 17:08:24 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:44424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1llHn6-0002FI-4W for emacs-devel@gnu.org; Mon, 24 May 2021 17:07:12 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:60507) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1llHn2-0003kv-0m for emacs-devel@gnu.org; Mon, 24 May 2021 17:07:10 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id C74B710028B; Mon, 24 May 2021 17:07:06 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 309DA1000C9; Mon, 24 May 2021 17:07:05 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1621890425; bh=65f7+PDnky6hiXeHVVkr+En7yza25+4DNWc6L9URMY8=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=MsaENXdBv1AuWO0LT9xMM+de8HRug45ZuEbttjUMtOP2eQdykFXAqjT/CE0iejtHS jr9BZMFRwkQAlPvoyC/f/h1CjUaKOqVbwBiLqJsE//9y8r27/c/GGi2Bk3BRYrNm5B BohgfGc8EV2F+pn1RxDUECFHncIn4xRbhJ0eHug3iUO3aBe0QESbBD0DR+8bmoSZO9 ipvoW4BY9Wiu4Gt5KfC9p6X3I0zn/tyRNBhJrQ38piMkRxU/jFCace4ejtArs0R3L9 6oTRBaU0CorzR/DJM0i0ovPydA8zrLfiXnAEYCC/PfYFyLo5HsIVprUeQ0rtutKhzo CfMkTTaf2Vmzw== Original-Received: from alfajor (69-196-163-239.dsl.teksavvy.com [69.196.163.239]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 0321A120177; Mon, 24 May 2021 17:07:04 -0400 (EDT) In-Reply-To: <87o8czopcj.fsf@ericabrahamsen.net> (Eric Abrahamsen's message of "Mon, 24 May 2021 13:21:00 -0700") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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: 2.1.23 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:269809 Archived-At: > For example, in a text-mode test buffer, I add the "/" syntax class to > ?*, then put that character before a space character, thinking it might > negate the space's whitespace class. That doesn't happen, though, as > (skip-syntax-forward "^ ") still stops at the space. skip-syntax-forward only looks at the actual syntax, so it doesn't pay attention to anything before/after. The "/" class is effective when you consider operations like `forward-sexp`, which might consider `foo\ bar` as a single "symbol" rather than two. Stefan