From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Heime Newsgroups: gmane.emacs.help Subject: Re: Special hilighting for comments Date: Sun, 11 Dec 2022 07:52:53 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29625"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs@gnu.org To: tomas@tuxteam.de Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun Dec 11 08:53:47 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 1p4H9f-0007Oq-PZ for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 11 Dec 2022 08:53:47 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p4H98-0004wu-Ap; Sun, 11 Dec 2022 02:53:14 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4H95-0004wf-NA for help-gnu-emacs@gnu.org; Sun, 11 Dec 2022 02:53:12 -0500 Original-Received: from mail-4319.protonmail.ch ([185.70.43.19]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p4H93-0003Ye-1P for help-gnu-emacs@gnu.org; Sun, 11 Dec 2022 02:53:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1670745185; x=1671004385; bh=aahI3d9NTZXBON9oDGSMXRv5fZbGB8xeNeYsa69Ua6c=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=N+pVcaa+beK6wmOvXvH7g4eXV/0Zm3S/fH8chJcudraRfuBPq7rePgh8rnUbVt/W/ bsKu5QyM+KybyzOpzAXqWLvl9WP7hlBSfVKcEh3efj0WIZHhoDlQaUvls9MmQnCz4k JH7DGabQqmqUWFJYST6vEoaOIyIAj6lx7ArA2x4xKBWiVX27KL/NeyCENld4gzfHzD 2mq7AIpq5iNqQ+MzrMjTBOWTKQr7mmNxWEj1vu/n9PKqAd4thxjsQDSCW5j/CaR+aD 54JFZ+IS+3RpIf+mP5uwg+AHfdKO14cDcgxAfp5B/cmEH28/Ng2NVQy9fdS3bxS1fL mJE/rujS/TjzQ== In-Reply-To: Feedback-ID: 57735886:user:proton Received-SPF: pass client-ip=185.70.43.19; envelope-from=heimeborgia@protonmail.com; helo=mail-4319.protonmail.ch X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H2=-0.001, 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: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141633 Archived-At: ------- Original Message ------- On Sunday, December 11th, 2022 at 7:47 AM, tomas@tuxteam.de wrote: > On Sun, Dec 11, 2022 at 07:33:19AM +0000, Heime wrote: >=20 > > ------- Original Message ------- > > On Sunday, December 11th, 2022 at 7:24 AM, tomas@tuxteam.de tomas@tuxte= am.de wrote: > >=20 > > > On Sun, Dec 11, 2022 at 06:59:32AM +0000, Heime wrote: > > >=20 > > > > ------- Original Message ------- > > > > On Sunday, December 11th, 2022 at 6:54 AM, tomas@tuxteam.de tomas@t= uxteam.de wrote: > > > >=20 > > > > > On Sun, Dec 11, 2022 at 02:37:38AM +0000, Heime wrote: > > > > >=20 > > > > > > Would you know the problem with the following regexp > > > > > >=20 > > > > > > "^;; \\[.+\\].*$" > > > > > >=20 > > > > > > It fails to match > > > > > >=20 > > > > > > ;; [something] other things > > > > >=20 > > > > > Worksforme. At least if the first semicolon is actually at the > > > > > start of a line, that is. > > > > >=20 > > > > > Cheers > > > > > -- > > > > > t > > > >=20 > > > > Yes it works. I am trying to use subexp in highlight-regexp. > > > > To match "^;; \\[.+\\].*$" but highlight only the "\\[.+\\]" part. > > >=20 > > > Aha. Read again the documentation string of `hightlight-regexp'. > > > Is there any part in there you don't understand? What about > > > SUBEXP? > >=20 > > Right. Have done > >=20 > > (highlight-regexp "^;; \\[.+\\].*$" 'elf-face "\\[.+\\]") > >=20 > > which does not get the highlighting. >=20 >=20 > [...] >=20 > Ah. There's your misunderstanding. Read the section about > "grouping constructs" in regular expressions. The short > version is that this argument SUBGROUP refers to the count > number of that subexpression, starting with 1. >=20 > So you need to group the part you are interested in in > your regexp (the subexpression) with \(...\) (don't forget > the extra backslash for the string syntax) like so: >=20 > "^;; \\(\\[.+\\]\\).$" >=20 > Now this is the first subgroup in your regexp (actually, the > only one). You refer to it with 1. This might work >=20 > (highlight-regexp "^;; \\(\\[.+\\]\\).$" 'elf-face 1) >=20 > Now read the section on "\( ... \)" in the chapter "Backslash > constructs in Regular Expressions". The others are useful, > too :) Success. Thank you so very much. I now understand how it works.