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: Tue, 18 May 2021 12:54:55 +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="28675"; 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: Christopher Dimech Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue May 18 12:12:08 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 1liwhr-0007AS-V3 for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 18 May 2021 12:12:07 +0200 Original-Received: from localhost ([::1]:45050 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1liwho-0005WC-ON for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 18 May 2021 06:12:06 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40486) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1liwUu-0003Lj-L9 for help-gnu-emacs@gnu.org; Tue, 18 May 2021 05:58:44 -0400 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:37971) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1liwUr-00024S-St for help-gnu-emacs@gnu.org; Tue, 18 May 2021 05:58:44 -0400 Original-Received: from localhost ([::ffff:154.230.124.187]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000ADF0E.0000000060A38FCF.00007CF3; Tue, 18 May 2021 02:58:38 -0700 Mail-Followup-To: Christopher Dimech , 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:129864 Archived-At: * Christopher Dimech [2021-05-18 12:31]: > > Sent: Tuesday, May 18, 2021 at 8:56 PM > > From: "Jean Louis" > > To: "Eric Abrahamsen" > > Cc: "Skip Montanaro" , "Help Gnu Emacs" , michael-franzese@gmx.com > > Subject: Re: Determining existence of text following point > > > > * Eric Abrahamsen [2021-05-18 03:09]: > > > michael-franzese@gmx.com writes: > > > > > > > But if there are only empty spaces it is ok too. > > > > (defun my-insert-on-empty-end-of-line (s) > > (let ((line-cut (buffer-substring-no-properties (point) (line-end-position)))) > > (when (or (not (string-match "[^[:blank:]]" line-cut)) (eolp)) > > (insert s)))) > > I understand that "string-match" returns index of start of first blank match. > > Suppose the cursor is just after the first period. Then because there is still > text left on the line, the string "s" is not inserted. The text should only be > inserted when the rest of the line is blank. > > A neutrino is a fermion. Some more text here. That (not (string-match "[^[:blank:]]" line-cut)) means it is true if nothing is found that is not blank space. Test it here where is the block (remove block): (string-match "[^[:blank:]]" (buffer-substring-no-properties (point) (line-end-position)))█ ;; something (not (string-match "[^[:blank:]]" (buffer-substring-no-properties (point) (line-end-position))))█ ;; something (not (string-match "[^[:blank:]]" (buffer-substring-no-properties (point) (line-end-position))))█ ⇒ t There is blank space after last parenthesis here, you can test: (not (string-match "[^[:blank:]]" (buffer-substring-no-properties (point) (line-end-position)))) -- 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/