From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: Regexp error scan (March 26) Date: Wed, 27 Mar 2019 15:41:06 +0100 Message-ID: <045E4E1D-EF0B-41A8-809D-48F38AABD602@acm.org> References: <0E648A80-8673-44DB-B481-981474AC3D7C@acm.org> <77419a89-ce9f-919b-c221-c7a3b938587a@cs.ucla.edu> <87h8bpvv74.fsf@tcd.ie> <7E84CED0-9E85-45FB-8BBF-B87ED51F4818@acm.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="207347"; mail-complaints-to="usenet@blaine.gmane.org" Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Mar 27 15:42:31 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1h99l8-000rk4-2b for ged-emacs-devel@m.gmane.org; Wed, 27 Mar 2019 15:42:30 +0100 Original-Received: from localhost ([127.0.0.1]:48703 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h99l7-0000ZV-2S for ged-emacs-devel@m.gmane.org; Wed, 27 Mar 2019 10:42:29 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:39205) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h99kw-0000X4-1M for emacs-devel@gnu.org; Wed, 27 Mar 2019 10:42:18 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h99ks-0006HK-6J for emacs-devel@gnu.org; Wed, 27 Mar 2019 10:42:16 -0400 Original-Received: from mail174c50.megamailservers.eu ([91.136.10.184]:45660 helo=mail36c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1h99kp-00069d-N7 for emacs-devel@gnu.org; Wed, 27 Mar 2019 10:42:12 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1553697724; bh=2f/QjLZ3M7uFh+rnH/EyeqE3KsfBBtNAA3fNYbAHazQ=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=VQgclWUStZC+EiTYoeLhDCz5F91D12PTfPI4jO/fs2ZRzW7XyNsFst/4Byc21srLf hCEAO6ryKCZ8g+JHgbSIy2eZIdk/CD8ZVEqR/nBDbxzJgDFSYKDbF6sfJvyEW6KcZL IAb+7aiNFZjzZNt1H6yyEc9XczGrtHKbQUP42iTQ= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.1.64] (c-e636e253.032-75-73746f71.bbcust.telenor.se [83.226.54.230]) (authenticated bits=0) by mail36c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id x2REg27f004654; Wed, 27 Mar 2019 14:42:04 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.8) X-CTCH-RefID: str=0001.0A0B020D.5C9B8BBC.002E, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=XOQetzpE c=1 sm=1 tr=0 a=M+GU/qJco4WXjv8D6jB2IA==:117 a=M+GU/qJco4WXjv8D6jB2IA==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=kj9zAlcOel0A:10 a=iRZporoAAAAA:8 a=YeRkwBE1DrJTJiGkWdsA:9 a=CjuIK1q_8ugA:10 a=NOBgFS-JBQ2l-kSd6-zu:22 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] X-Received-From: 91.136.10.184 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:234771 Archived-At: 27 mars 2019 kl. 15.36 skrev Stefan Monnier : >=20 >>> (regexp-opt-charset (append erc-lurker-ignore-chars nil)) >=20 > Why do we need the append-nil thingy? > Does regexp-opt-charset modify its argument by side-effect? No, it's a way to convert a string to a list of characters which is what = regexp-opt-charset expects. (mapcar #'identity ...) would also work, but this is a little shorter.