From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Seeking advice on writing a "line-based" major mode Date: Thu, 18 Jun 2015 17:57:53 +0200 Organization: Aioe.org NNTP Server Message-ID: <87d20tc8la.fsf@debian.uxu> References: <87wpzf9q38.fsf@mbork.pl> <2687fb9a-c314-4cf4-8c8a-d959e886ed14@default> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1434642977 23893 80.91.229.3 (18 Jun 2015 15:56:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 18 Jun 2015 15:56:17 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Jun 18 17:56:13 2015 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 1Z5cAe-00051H-RA for geh-help-gnu-emacs@m.gmane.org; Thu, 18 Jun 2015 17:56:04 +0200 Original-Received: from localhost ([::1]:53483 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z5cAe-0003XA-Bp for geh-help-gnu-emacs@m.gmane.org; Thu, 18 Jun 2015 11:56:04 -0400 Original-Path: usenet.stanford.edu!news.kjsl.com!feeder.erje.net!us.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 36 Original-NNTP-Posting-Host: feB02bRejf23rfBm51Mt7Q.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:DU1hKj0Klx4vOMD2QHp4vVUD6UU= Mail-Copies-To: never Original-Xref: usenet.stanford.edu gnu.emacs.help:212750 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:105035 Archived-At: Marcin Borkowski writes: > Fair enough. I was mentioning Dired more to convey > my needs than as a suggestion that I'd like to > mimick its implementation - it is far more complex > than what I need. I think there are two schools how to do this. The easiest way and the way I would do it is to just write an iteration (or recursive) algorithm to populate the window with data, which will also serve as the UI. Simply have a key (e.g., RET) execute an algorithm to act on the data: (let ((data (thing-at-point ... ))) (if ( ... data) (action data) ... )) Last do polishing: font-lock keywords, (speedified) cursor-movements, etc. The more advanced way which is more schoolbookish and ultimately more powerful (but it depends on the purpose if such power is needed) is to have the UI window-dressing separated from the logic - which you instead put in text properties. Then you can even have the UI format-stringed and have the user curtain it in whatever way desired, but the functionality will remain untouched. -- underground experts united http://user.it.uu.se/~embe8573