From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Thorsten Jolitz Newsgroups: gmane.emacs.help Subject: Re: Best way to get buffer changes in a program? Date: Tue, 18 Mar 2014 13:28:56 +0100 Message-ID: <874n2voflj.fsf@gmail.com> References: <87wqfs8jbh.fsf@gmail.com> <5327EA7B.1010004@easy-emacs.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1395145758 1466 80.91.229.3 (18 Mar 2014 12:29:18 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 18 Mar 2014 12:29:18 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Mar 18 13:29:25 2014 Return-path: Envelope-to: geh-help-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 1WPt93-0000xM-Dz for geh-help-gnu-emacs@m.gmane.org; Tue, 18 Mar 2014 13:29:25 +0100 Original-Received: from localhost ([::1]:35013 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPt92-0006QJ-W6 for geh-help-gnu-emacs@m.gmane.org; Tue, 18 Mar 2014 08:29:25 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46078) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPt7m-0004ri-6j for help-gnu-emacs@gnu.org; Tue, 18 Mar 2014 08:28:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WPt7g-0002oe-Ng for help-gnu-emacs@gnu.org; Tue, 18 Mar 2014 08:28:06 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:40568) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPt7g-0002oL-4o for help-gnu-emacs@gnu.org; Tue, 18 Mar 2014 08:28:00 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WPt7a-00077n-FJ for help-gnu-emacs@gnu.org; Tue, 18 Mar 2014 13:27:54 +0100 Original-Received: from e178190221.adsl.alicedsl.de ([85.178.190.221]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Mar 2014 13:27:54 +0100 Original-Received: from tjolitz by e178190221.adsl.alicedsl.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Mar 2014 13:27:54 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 36 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: e178190221.adsl.alicedsl.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Cancel-Lock: sha1:RfIFe6YYb0707j00C1ZbWx6RhJw= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:96581 Archived-At: Andreas Röhler writes: > Am 18.03.2014 01:02, schrieb Thorsten Jolitz: >> >> Hi List, >> >> there are many ways to track and visualize changes in Emacs (see >> e.g. http://www.emacswiki.org/emacs/TrackChanges). >> >> However, I would like to get non-interactively a list of lines (or >> positions) in the buffer that changed after the last command - how to I >> do that? Is is somehow possible to determine in a program that calls >> other functions that insert text which new lines have been inserted (when >> a buffer increased in size after a command was executed)? >> >> Thanks in advance for any hints. >> > > You could start from ediff-regions-... running at alist of functions - > all that against a list of original buffers. Thanks for bringing me on the right track, after quite a lot of research in the ediff libraries I found this low-level non-interactive function that gives me the line numbers I need: ,------------------------------------------------------------------------- | ;; Run the diff program on FILE1 and FILE2 and put the output in | ;; DIFF-BUFFER Return the size of DIFF-BUFFER The return code isn't used | ;; in the program at present. | | (defun ediff-make-diff2-buffer (diff-buffer file1 file2) ...) `------------------------------------------------------------------------- -- cheers, Thorsten