From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: regex.c simplification Date: Thu, 19 Jul 2018 17:59:12 -0700 Organization: UCLA Computer Science Department Message-ID: <7cc7d274-ee6a-ab14-c78a-4fdba963578b@cs.ucla.edu> References: <83fu1mzq09.fsf@gnu.org> <30e30c9d-1e0d-ea7d-2ef5-ae8622875449@cs.ucla.edu> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1532048273 17436 195.159.176.226 (20 Jul 2018 00:57:53 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 20 Jul 2018 00:57:53 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 To: Stefan Monnier , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Jul 20 02:57:48 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fgJjw-0004RP-48 for ged-emacs-devel@m.gmane.org; Fri, 20 Jul 2018 02:57:48 +0200 Original-Received: from localhost ([::1]:45939 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgJm3-0002Pp-33 for ged-emacs-devel@m.gmane.org; Thu, 19 Jul 2018 20:59:59 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35258) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgJlP-0002Pk-Sj for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:59:20 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fgJlM-0007ss-Qk for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:59:19 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:59788) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fgJlM-0007o4-GN for emacs-devel@gnu.org; Thu, 19 Jul 2018 20:59:16 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id A1F77160874; Thu, 19 Jul 2018 17:59:14 -0700 (PDT) Original-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 hMAWwOLyupsk; Thu, 19 Jul 2018 17:59:13 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id B340F160CB9; Thu, 19 Jul 2018 17:59:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-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 4TNSrMSFMRHL; Thu, 19 Jul 2018 17:59:13 -0700 (PDT) Original-Received: from [192.168.1.9] (unknown [47.154.30.119]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 56C32160874; Thu, 19 Jul 2018 17:59:13 -0700 (PDT) Openpgp: preference=signencrypt Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= xsFNBEyAcmQBEADAAyH2xoTu7ppG5D3a8FMZEon74dCvc4+q1XA2J2tBy2pwaTqfhpxxdGA9 Jj50UJ3PD4bSUEgN8tLZ0san47l5XTAFLi2456ciSl5m8sKaHlGdt9XmAAtmXqeZVIYX/UFS 96fDzf4xhEmm/y7LbYEPQdUdxu47xA5KhTYp5bltF3WYDz1Ygd7gx07Auwp7iw7eNvnoDTAl KAl8KYDZzbDNCQGEbpY3efZIvPdeI+FWQN4W+kghy+P6au6PrIIhYraeua7XDdb2LS1en3Ss mE3QjqfRqI/A2ue8JMwsvXe/WK38Ezs6x74iTaqI3AFH6ilAhDqpMnd/msSESNFt76DiO1ZK QMr9amVPknjfPmJISqdhgB1DlEdw34sROf6V8mZw0xfqT6PKE46LcFefzs0kbg4GORf8vjG2 Sf1tk5eU8MBiyN/bZ03bKNjNYMpODDQQwuP84kYLkX2wBxxMAhBxwbDVZudzxDZJ1C2VXujC OJVxq2kljBM9ETYuUGqd75AW2LXrLw6+MuIsHFAYAgRr7+KcwDgBAfwhPBYX34nSSiHlmLC+ KaHLeCLF5ZI2vKm3HEeCTtlOg7xZEONgwzL+fdKo+D6SoC8RRxJKs8a3sVfI4t6CnrQzvJbB n6gxdgCu5i29J1QCYrCYvql2UyFPAK+do99/1jOXT4m2836j1wARAQABzSBQYXVsIEVnZ2Vy dCA8ZWdnZXJ0QGNzLnVjbGEuZWR1PsLBfgQTAQIAKAUCTIByZAIbAwUJEswDAAYLCQgHAwIG FQgCCQoLBBYCAwECH In-Reply-To: Content-Language: en-US X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:227567 Archived-At: Stefan Monnier wrote: > does etags use regexps internally, or only to handle > user-provided "--regex" arguments? > More specifically, does it come with its own set of hardcoded regexps? No, etags uses the regexp code only for --regex arguments. It would of co= urse be=20 simpler to disable --regex on platforms lacking the glibc regex API. Howe= ver, my=20 impression is that etags --regex gets some use. For example: https://stackoverflow.com/questions/21283687/what-do-you-put-in-your-stan= dard-etags-regex-calls http://xahlee.info/comp/ctags_etags_gtags.html