From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Lennart Borgman (gmail)" Newsgroups: gmane.emacs.devel Subject: Re: How to test :invisible property? Date: Thu, 27 Dec 2007 15:36:21 +0100 Message-ID: <4773B865.6090304@gmail.com> References: <4773AD56.7030100@gmail.com> <4773ADD9.50909@gmail.com> <4773B575.1050109@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1198766204 28710 80.91.229.12 (27 Dec 2007 14:36:44 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 27 Dec 2007 14:36:44 +0000 (UTC) To: Emacs Devel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Dec 27 15:36:58 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1J7tqs-0007Ff-Sm for ged-emacs-devel@m.gmane.org; Thu, 27 Dec 2007 15:36:51 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J7tqX-0000FV-VF for ged-emacs-devel@m.gmane.org; Thu, 27 Dec 2007 09:36:30 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1J7tqT-0000B7-16 for emacs-devel@gnu.org; Thu, 27 Dec 2007 09:36:25 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1J7tqR-00007B-19 for emacs-devel@gnu.org; Thu, 27 Dec 2007 09:36:24 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J7tqQ-00006q-SK for emacs-devel@gnu.org; Thu, 27 Dec 2007 09:36:22 -0500 Original-Received: from ch-smtp02.sth.basefarm.net ([80.76.149.213]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1J7tqQ-0001GJ-Gh for emacs-devel@gnu.org; Thu, 27 Dec 2007 09:36:22 -0500 Original-Received: from c83-254-148-228.bredband.comhem.se ([83.254.148.228]:62113 helo=[127.0.0.1]) by ch-smtp02.sth.basefarm.net with esmtp (Exim 4.68) (envelope-from ) id 1J7tqO-00035W-8P for emacs-devel@gnu.org; Thu, 27 Dec 2007 15:36:20 +0100 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071031 Thunderbird/2.0.0.9 Mnenhy/0.7.5.666 In-Reply-To: <4773B575.1050109@gmail.com> X-Antivirus: avast! (VPS 071226-0, 2007-12-26), Outbound message X-Antivirus-Status: Clean X-Originating-IP: 83.254.148.228 X-Scan-Result: No virus found in message 1J7tqO-00035W-8P. X-Scan-Signature: ch-smtp02.sth.basefarm.net 1J7tqO-00035W-8P efe23e058f2b2888de06845b05003642 X-detected-kernel: by monty-python.gnu.org: Linux 2.6? (barebone, rare!) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:85514 Archived-At: Lennart Borgman (gmail) wrote: > Lennart Borgman (gmail) wrote: >> Lennart Borgman (gmail) wrote: >>> Is there an elisp function that tests the :invisible property against >>> buffer-invisibility-spec? >> >> I mean the 'invisible property > > There is actually a function in simple.el: > > (defun line-move-invisible-p (pos) > "Return non-nil if the character after POS is currently invisible." > > Maybe this should be mentioned in > > (info "(elisp) Invisible Text") But that function seems not correct. The "(or is list with members in common)" in the docs string of buffer-invisibility-spec does not seem to be implemented. BTW that doc string is not quite correct. Here is a new version of the function above which I believe is correct: (defun line-move-invisible-p (pos) "Return non-nil if the character after POS is currently invisible." (let ((prop (get-char-property pos 'invisible))) (if (eq buffer-invisibility-spec t) prop (if (listp prop) (catch 'invis (dolist (p prop) (when (or (memq p buffer-invisibility-spec) (assq p buffer-invisibility-spec)) (throw 'invis t)))) (or (memq prop buffer-invisibility-spec) (assq prop buffer-invisibility-spec))))))