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: [External] : How to get all paragraphs in list? Date: Wed, 7 Sep 2022 09:03:28 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30457"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/+ () (2022-06-11) Cc: Help GNU Emacs To: Drew Adams Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Sep 07 08:06:41 2022 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 1oVoCu-0007lw-IH for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 07 Sep 2022 08:06:40 +0200 Original-Received: from localhost ([::1]:36972 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oVoCt-0000Kc-KV for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 07 Sep 2022 02:06:39 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oVoBF-000871-Di for help-gnu-emacs@gnu.org; Wed, 07 Sep 2022 02:04:57 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:56379) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oVoBD-0003Zh-7K for help-gnu-emacs@gnu.org; Wed, 07 Sep 2022 02:04:56 -0400 Original-Received: from localhost ([::ffff:102.82.36.66]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000B5AB6.0000000063183461.00002168; Tue, 06 Sep 2022 23:04:17 -0700 Mail-Followup-To: Drew Adams , 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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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:139293 Archived-At: * Drew Adams [2022-09-05 21:07]: > > However, there is some problem as it blocks, never ends, when I > > interrupt it with Ctrl-G then I see that lines have been joined in all > > of the buffer, but `while' loop was I guess still running. > > > > Do you maybe know why? > > You're repeatedly refilling/joining the same paragraphs. > > `M-x debug-on-entry' shows you exactly what any of > your functions is doing, step by step. You have made this function: (defun paragraphs-in-region (&optional start end msgp) "Return list of paragraphs in region. By Drew Adams, Date: Mon, 5 Sep 2022 16:02:32 +0000, GNU Emacs Help." (interactive (if (use-region-p) (list (region-beginning) (region-end) t) (list (point-min) (point-max) t))) (let ((paras ())) (save-excursion (goto-char start) (while (< (point) end) (push (buffer-substring-no-properties (point) (progn (forward-paragraph) (point))) paras)) (setq paras (nreverse paras)) (when msgp (message "Paras: %S" paras)) paras))) Then I wanted to make general function to iterate over paragraphs this way: (defun rcd-paragraphs-iterate (function) "Iterate FUNCTION over paragraphs. FUNCTION must accept string as single argument." (let ((start (if (use-region-p) (region-beginning) (point-min))) (end (if (use-region-p) (region-end) (point-max)))) (save-excursion (goto-char start) (while (< (point) end) (funcall function) (forward-paragraph))))) Then I use following functions to apply on the paragraph. (defun join-lines () "Joins lines of a paragraph." (interactive) (let ((fill-column (point-max))) (fill-paragraph nil))) (defun join-lines-buffer-or-region () "Join lines on all buffer." (interactive) (rcd-paragraphs-iterate 'join-lines)) That means `join-lines-buffer-or-region' applies on paragraphs in buffer or region. Problem is in: (while (< (point) end) (funcall function) (forward-paragraph))))) I still cannot understand WHEN is that happening, I just assume that it happens when there are some empty lines on the end. Sometimes it works, sometimes not. -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/