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 22:31:59 +0200 Message-ID: <87a7u2x58g.fsf@mouse.gnus.org> References: <87lgdo5bb3.fsf@mouse.gnus.org> <87in8r16b0.fsf@mouse.gnus.org> <87d0yz15a3.fsf@mouse.gnus.org> <87604r143y.fsf@mouse.gnus.org> <20180416194034.GB5637@ACM> <877ep7x77s.fsf@mouse.gnus.org> <20180416200745.GC5637@ACM> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1523910671 7538 195.159.176.226 (16 Apr 2018 20:31:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 16 Apr 2018 20:31:11 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: =?utf-8?B?Sm/Do28gVMOhdm9yYQ==?= , emacs-devel To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 16 22:31:07 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 1f8AmI-0001rh-Pd for ged-emacs-devel@m.gmane.org; Mon, 16 Apr 2018 22:31:06 +0200 Original-Received: from localhost ([::1]:41906 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f8AoP-00030b-Eq for ged-emacs-devel@m.gmane.org; Mon, 16 Apr 2018 16:33:17 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49813) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f8AnZ-0002z5-Km for emacs-devel@gnu.org; Mon, 16 Apr 2018 16:32:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f8AnW-00017U-HX for emacs-devel@gnu.org; Mon, 16 Apr 2018 16:32:25 -0400 Original-Received: from hermes.netfonds.no ([80.91.224.195]:46731) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1f8AnW-00016T-A7 for emacs-devel@gnu.org; Mon, 16 Apr 2018 16:32:22 -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 1f8AnR-0005NH-Cc; Mon, 16 Apr 2018 22:32:19 +0200 Original-Received: from larsi by corrigan with local (Exim 4.89) (envelope-from ) id 1f8An9-0007zz-Al; Mon, 16 Apr 2018 22:31:59 +0200 In-Reply-To: <20180416200745.GC5637@ACM> (Alan Mackenzie's message of "Mon, 16 Apr 2018 20:07:45 +0000") 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:224681 Archived-At: Alan Mackenzie writes: > In C++ and Java Modes, < and > which are template/generic delimiters are > given category text properties, symbols foo and bar, whose syntax-table > properties gives the < and > parenthesis syntax. This parenthesis syntax > is regularly "switched off" on all such characters simply by changing > the value of foo's and bar's syntax-table properties to punctuation. > This enables syntactic searching where template/generic < and > need not > to be seen. I see; thanks for the explanation. So it would be nice to use this function to search for characters that have a property set to nil (as opposed to not being set at all). But how to express that to the predicate function? Hm... We need more forms of `nil'. :-) -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no