From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?=C3=93scar_Fuentes?= Newsgroups: gmane.emacs.devel Subject: Re: prettify-symbols-mode to handle "\alpha-\beta" ... Date: Thu, 04 Feb 2021 04:39:47 +0100 Message-ID: <87r1lwmrgc.fsf@telefonica.net> References: <87v9b8mvpb.fsf@telefonica.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="17647"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: emacs-devel@gnu.org Cancel-Lock: sha1:p7alMO7FMALj7IpsRtzhR64uQ/Y= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Feb 04 04:40:48 2021 Return-path: Envelope-to: ged-emacs-devel@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 1l7VVg-0004U4-55 for ged-emacs-devel@m.gmane-mx.org; Thu, 04 Feb 2021 04:40:48 +0100 Original-Received: from localhost ([::1]:37372 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l7VVf-0001K0-7s for ged-emacs-devel@m.gmane-mx.org; Wed, 03 Feb 2021 22:40:47 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35660) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7VUs-0000kh-Uh for emacs-devel@gnu.org; Wed, 03 Feb 2021 22:39:59 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:56772) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7VUp-00069n-Qz for emacs-devel@gnu.org; Wed, 03 Feb 2021 22:39:57 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1l7VUm-0003ZK-Mf for emacs-devel@gnu.org; Thu, 04 Feb 2021 04:39:52 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@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 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:263835 Archived-At: pietru@caramail.com writes: >> The docstring of prettify-symbols-alist says: >> >> Each element looks like (SYMBOL . CHARACTER), where the symbol >> matching SYMBOL (a string, not a regexp) will be shown as CHARACTER >> instead. >> >> so no, SYMBOL *must* *not* be a regexp. >> >> I can't reproduce the problem you are describing. After starting Emacs: >> >> emacs -Q >> >> if I evaluate this in *scratch*: >> >> (push '("\\alpha" . ?α) prettify-symbols-alist) >> >> then open a .tex file, write \alpha_i, M-x prettify-symbols-alist, the >> string is transformed to α_i. >> >> Please note that the definition of SYMBOL depends on the major mode of >> the buffer, so make sure that your current major mode is tex-mode. >> > > No, the major mode is texinfo-mode. Texinfo allows mathematics to be > displayed using the usual tex expressions. Could this functionality > be put for use in texinfo-mode? I missed the texinfo bit on your original message, sorry. Supporting what you want would require either changing what texinfo considers a symbol or changing prettify-symbols-mode to work on something else instead of symbols. Probably the easiest route for you is to derive a mode from texinfo-mode that modifies the syntax table defined in texinfo.el to suit your needs (see "Syntax Tables" in the Elisp manual). If you insist on changing texinfo-mode itself, put those modifications on the mode's syntax table and submit the change to the Emacs maintainers, but my guess is that you will need to give pretty solid reasons for the change to be accepted, and then wait a long time until Emacs 28 is released and becomes widespread enough among your target users.