From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Text property searching Date: Mon, 16 Apr 2018 18:09:55 +0200 Message-ID: <87in8r16b0.fsf@mouse.gnus.org> References: <87lgdo5bb3.fsf@mouse.gnus.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1523894912 20449 195.159.176.226 (16 Apr 2018 16:08:32 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 16 Apr 2018 16:08:32 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: emacs-devel To: =?utf-8?B?Sm/Do28gVMOhdm9yYQ==?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 16 18:08:28 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 1f86g7-0005Ff-3h for ged-emacs-devel@m.gmane.org; Mon, 16 Apr 2018 18:08:27 +0200 Original-Received: from localhost ([::1]:55549 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f86iD-0002c4-Qo for ged-emacs-devel@m.gmane.org; Mon, 16 Apr 2018 12:10:37 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58861) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f86i2-0002bN-K7 for emacs-devel@gnu.org; Mon, 16 Apr 2018 12:10:32 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f86hy-0004x3-II for emacs-devel@gnu.org; Mon, 16 Apr 2018 12:10:26 -0400 Original-Received: from hermes.netfonds.no ([80.91.224.195]:43395) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1f86hy-0004vD-8N for emacs-devel@gnu.org; Mon, 16 Apr 2018 12:10:22 -0400 Original-Received: from 46.67.12.60.tmi.telenormobil.no ([46.67.12.60] helo=corrigan) by hermes.netfonds.no with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1f86ht-00079G-Di; Mon, 16 Apr 2018 18:10:19 +0200 Original-Received: from larsi by corrigan with local (Exim 4.89) (envelope-from ) id 1f86hh-0006ss-Cs; Mon, 16 Apr 2018 18:10:05 +0200 In-Reply-To: (=?utf-8?Q?=22Jo=C3=A3o_T=C3=A1vora=22's?= message of "Mon, 16 Apr 2018 16:16:01 +0100") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 80.91.224.195 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:224648 Archived-At: Jo=C3=A3o T=C3=A1vora writes: > 1. What should happen if search starts in the region where the > property is already set? I think it should give you a match starting at point and ending where the property ends.=20=20 > 2. Can we generalize this to work for searches for regions where the > property is set to some constant value and also for regions where the > property is just present. What about "not-present"? Well, that's what the two arguments do -- the match and the predicate, so those are covered... > Or do you envision this to be handled by the second and third > arguments? Perhaps, in addition to the other type of value, both could > also be passed a function: the second one a function of one arg, the > buffer position, producing a value, and the third one a function of > two values returning a boolean (this is vaguely CL's :key and :test, > obviously). Hm... I don't quite see the need for the single-value function (i.e., the :key function) because the predicate can do whatever it wants. --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no