From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: Re: Determining existence of text following point Date: Wed, 19 May 2021 13:23:27 +0300 Message-ID: References: <87cztpx8oz.fsf@ericabrahamsen.net> <87zgwsx5r3.fsf@ericabrahamsen.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10113"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.0.6 (2021-03-06) Cc: Eric Abrahamsen , Skip Montanaro , Help Gnu Emacs To: michael-franzese@gmx.com Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed May 19 12:24:30 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ljJNN-0002U5-TC for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 19 May 2021 12:24:29 +0200 Original-Received: from localhost ([::1]:57178 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ljJNM-00027H-UQ for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 19 May 2021 06:24:28 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55256) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljJMu-00022f-OQ for help-gnu-emacs@gnu.org; Wed, 19 May 2021 06:24:00 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:58517) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljJMs-0003l5-J3 for help-gnu-emacs@gnu.org; Wed, 19 May 2021 06:24:00 -0400 Original-Received: from localhost ([::ffff:154.227.232.214]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000ADF01.0000000060A4E73B.00002CEA; Wed, 19 May 2021 03:23:55 -0700 Mail-Followup-To: michael-franzese@gmx.com, Eric Abrahamsen , Skip Montanaro , Help Gnu Emacs Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:129924 Archived-At: * michael-franzese@gmx.com [2021-05-19 10:29]: > Point will always be at the beginning of a comment on a separate line > > The "^" shows the position of the cursor. > > ^;; ;;;;;;;;;;;;;;;;;;;;;;;;;; > > ^;; +++++++++++++++++++++++++++ > > ^;; ---------------------------- > > I want to have a keybinding that if I continue to hit will change > a comment from > > ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; > > to > > ;; +++++++++++++++++++++++++++++++++++++ > > Currently I have the following code > > > (defun insert-bifurcation (s n) > "todo" > > (let* ( (a (point)) (b (line-end-position)) > (line-cut (buffer-substring-no-properties a b)) ) > > (when (or (not (string-match > "[^[:blank:]]" line-cut)) (eolp)) > (pcase n > > (0 > (save-excursion (insert s)) > (comment-region a b)) > > ((or 1 2 3 4 5) > (delete-region a b) > (save-excursion (insert s)) > (comment-region a b)) > > (_ > (delete-region a b))) )) ) > > (defvar count 1) > > (defun insert-bifurcating-comment () > "Insert bifurcating line at cursor position" > (interactive) > > (let* ( (m 62) (n 69) > (lena (- m (current-column))) ; lena = m - (current-column) > (lenb (- n (current-column))) ) > > (pcase count > (0 > ;; makes s to be line with repeating ";" > (setq-local s (make-string lena ?\;)) ; repeats lena times > (insert-bifurcation s count) > (setq-local count 1)) > (1 > ;; makes s to be line with repeating ";" > (setq-local s (make-string lenb ?\;)) ; string length lenb > (insert-bifurcation s count) > (setq-local count 2)) > (2 > ;; makes s to be line with repeating "+" > (setq-local s (make-string lena ?+)) > (insert-bifurcation s count) > (setq-local count 3)) > (_ > ;; deactivates the bifurcating line > (insert-bifurcation s count) > (setq-local count 1)) )) ) I am done and obfuscated now. ☺ -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns Sign an open letter in support of Richard M. Stallman https://stallmansupport.org/ https://rms-support-letter.github.io/