From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#14704: 24.3.50; cl-lib breaks built-in Emacs version Date: Tue, 25 Jun 2013 17:43:48 +0300 Message-ID: <83obaui72z.fsf@gnu.org> References: <837ghjjqvj.fsf@gnu.org> <831u7rjoyl.fsf@gnu.org> <83y59zi84y.fsf@gnu.org> <871u7rxns8.fsf@yandex.ru> <83vc53i7cv.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1372171515 6552 80.91.229.3 (25 Jun 2013 14:45:15 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 25 Jun 2013 14:45:15 +0000 (UTC) Cc: lunaryorn@gmail.com, dgutov@yandex.ru, 14704@debbugs.gnu.org To: Juanma Barranquero Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jun 25 16:45:15 2013 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UrUUb-0000aF-2u for geb-bug-gnu-emacs@m.gmane.org; Tue, 25 Jun 2013 16:45:13 +0200 Original-Received: from localhost ([::1]:48933 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UrUUa-0002bM-N6 for geb-bug-gnu-emacs@m.gmane.org; Tue, 25 Jun 2013 10:45:12 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:42533) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UrUUW-0002YV-DO for bug-gnu-emacs@gnu.org; Tue, 25 Jun 2013 10:45:10 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UrUUR-0004u6-A5 for bug-gnu-emacs@gnu.org; Tue, 25 Jun 2013 10:45:08 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:46222) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UrUUR-0004t9-7K for bug-gnu-emacs@gnu.org; Tue, 25 Jun 2013 10:45:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1UrUUP-00057p-Pj for bug-gnu-emacs@gnu.org; Tue, 25 Jun 2013 10:45:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 25 Jun 2013 14:45:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14704 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 14704-submit@debbugs.gnu.org id=B14704.137217145519632 (code B ref 14704); Tue, 25 Jun 2013 14:45:01 +0000 Original-Received: (at 14704) by debbugs.gnu.org; 25 Jun 2013 14:44:15 +0000 Original-Received: from localhost ([127.0.0.1]:40538 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UrUTe-00056Z-Gf for submit@debbugs.gnu.org; Tue, 25 Jun 2013 10:44:14 -0400 Original-Received: from mtaout21.012.net.il ([80.179.55.169]:41611) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UrUTc-00056M-1O for 14704@debbugs.gnu.org; Tue, 25 Jun 2013 10:44:13 -0400 Original-Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0MOY00200E7UXC00@a-mtaout21.012.net.il> for 14704@debbugs.gnu.org; Tue, 25 Jun 2013 17:43:57 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MOY00245E98XJ00@a-mtaout21.012.net.il>; Tue, 25 Jun 2013 17:43:57 +0300 (IDT) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:75563 Archived-At: > From: Juanma Barranquero > Date: Mon, 24 Jun 2013 22:30:38 +0200 > Cc: Dmitry Gutov , Glenn Morris , lunaryorn@gmail.com, > 14704@debbugs.gnu.org > > On Mon, Jun 24, 2013 at 10:25 PM, Eli Zaretskii wrote: > > > We lack a lot of infrastructure for that, like access from Lisp to > > data structures manipulated by the display engine. > > What kind of API are you envisioning? Yes, I know that a designing a > precise API is half the work, I'm asking more about the general idea. First, a caveat: I didn't really put a lot of thinking into this. That said, what I had in mind was an API that would return a detailed description of the current glyph matrix for a window. Another API should return the position and description (block, bar, hollow, etc.) of the window's cursor. Another useful feature would be to be able to produce the full sequence of calls to display-specific back-end APIs which were involved in a given redisplay cycle. This would obviously require design of some kind of language to describe these sequences. There will be probably more once we start on this road, but the above should be a good starting point, IMO.