From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: Convert some Latex expressions in Emacs. Date: Tue, 17 May 2022 04:22:22 +0200 Message-ID: <871qwsj3tt.fsf@dataswamp.org> References: <87k0alvxf4.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="16209"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:mqKU6wvuNo0Y+N3pxQJEeMQIjLs= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue May 17 04:22:57 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 1nqmrQ-00042A-Qg for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 17 May 2022 04:22:56 +0200 Original-Received: from localhost ([::1]:50382 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nqmrP-0002bt-Pj for geh-help-gnu-emacs@m.gmane-mx.org; Mon, 16 May 2022 22:22:55 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:52472) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqmr0-0002Z5-E4 for help-gnu-emacs@gnu.org; Mon, 16 May 2022 22:22:30 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:35806) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nqmqy-0001Tb-K9 for help-gnu-emacs@gnu.org; Mon, 16 May 2022 22:22:30 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1nqmqw-0003Se-Ie for help-gnu-emacs@gnu.org; Tue, 17 May 2022 04:22:26 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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:137289 Archived-At: Hongyi Zhao wrote: >> If you have some time you might have a look at peg.el (from >> Gnu Elpa). PEGs (Parsing Expression Grammars) are a bit >> more expressive than regular expressions. Takes a bit of >> time to get used to the concept but if you have to solve >> such tasks more often it may pay off. > > I roughly browse the relevant introduction here [1]. > It seems that all Emacs Lisp based regex patterns are more > complicated and tedious than other languages, e.g., python, > wolfram, and so on. It's the same as everywhere. Start appling them on your own use case and you'll see it isn't difficult at all. Here is an interesting post BTW: https://lists.gnu.org/archive/html/help-gnu-emacs/2022-05/msg00190.html -- underground experts united https://dataswamp.org/~incal