From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_PASS,URI_HEX shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id B469B1F4B4 for ; Sat, 23 Jan 2021 01:10:44 +0000 (UTC) Received: from localhost ([::1]:39142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l37Rr-00017p-G9 for normalperson@yhbt.net; Fri, 22 Jan 2021 20:10:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45156) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l37Rl-00017S-Ue for bug-gnulib@gnu.org; Fri, 22 Jan 2021 20:10:37 -0500 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:53064) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l37Ri-0005H6-7m for bug-gnulib@gnu.org; Fri, 22 Jan 2021 20:10:36 -0500 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 2295D16013D; Fri, 22 Jan 2021 17:10:32 -0800 (PST) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id jaPnLy-ASBIr; Fri, 22 Jan 2021 17:10:31 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 49D8416011A; Fri, 22 Jan 2021 17:10:31 -0800 (PST) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id Qb0IlqeJpAdi; Fri, 22 Jan 2021 17:10:31 -0800 (PST) Received: from [192.168.1.9] (cpe-23-243-218-95.socal.res.rr.com [23.243.218.95]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 2174016013D; Fri, 22 Jan 2021 17:10:31 -0800 (PST) Subject: Re: Lookaround assertions in regexps To: Brian Leung References: <509114489.354543.1611349235218@ichabod.co-bxl> From: Paul Eggert Organization: UCLA Computer Science Department Message-ID: Date: Fri, 22 Jan 2021 17:10:30 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: <509114489.354543.1611349235218@ichabod.co-bxl> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=131.179.128.68; envelope-from=eggert@cs.ucla.edu; helo=zimbra.cs.ucla.edu 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, NICE_REPLY_A=-0.221, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URI_HEX=0.1 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-gnulib@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Gnulib discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bug-gnulib@gnu.org Errors-To: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org Sender: "bug-gnulib" On 1/22/21 1:00 PM, Brian Leung wrote: > Tomohiro Matsui wrote a patch to support lookaround assertions in regexps some time ago (http://emacs.1067599.n8.nabble.com/Patch-for-lookaround-assertion-in-regexp-td121057.html#a23863009), but it never got merged. > > Is there still interest in something like this? If so I can try updating the patch and submitting. That was for the Emacs regex code which is distinct from Gnulib, so I suggest asking on the emacs-devel mailing list.