From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.devel Subject: Re: prettify-symbols-mode to handle "\alpha-\beta" ... Date: Fri, 05 Feb 2021 22:09:49 +0000 Message-ID: <5588fb258084b189877d@heytings.org> References: <87v9b8mvpb.fsf@telefonica.net> <87r1lwmrgc.fsf@telefonica.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="9ehOP8IGLz" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5364"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: pietru@caramail.com Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Feb 05 23:11:15 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 1l89Jq-0001Ir-K8 for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Feb 2021 23:11:14 +0100 Original-Received: from localhost ([::1]:46100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l89Jp-0006F0-LH for ged-emacs-devel@m.gmane-mx.org; Fri, 05 Feb 2021 17:11:13 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49702) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l89IX-0005kP-SM for emacs-devel@gnu.org; Fri, 05 Feb 2021 17:09:53 -0500 Original-Received: from heytings.org ([95.142.160.155]:38500) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l89IW-0005uq-09 for emacs-devel@gnu.org; Fri, 05 Feb 2021 17:09:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20210101; t=1612562989; bh=GAeTIrFal+Rm3sd/yyCmVepRLgrilriU8pjOexc8JeA=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=I3+92m6Avn079oUYjIe//3ewGP+JCu6woIVIgBQkvAlazvWwwFEX9cWTd6R+K1jSu PIQiaLbofwU564VFdpCBkx0U/gkNc7Odka9YBHhF4Absl/I4QY69wrcm3xZ/QzLbWf 9GVfbMItVxFj8p3agzZYs+/1VayDvFg6VTh4rI2KModgwJwuYPeh9rY+l4xzF4ny2x mBpSyFHXRqE16/qywu54sdanQ5GVyi9iJT1zyvKg2xVTlRb0GOhWzjFOkhtPlI8siD cFEPCmh6Zrt4ksnKWsGVo6L4HuzvDVaa1Uu0xLiDmmAP82hOrHA0rPr1UgMNir69tQ fplK73wSYB39g== In-Reply-To: Content-ID: <5588fb2580bac9155f96@heytings.org> Received-SPF: pass client-ip=95.142.160.155; envelope-from=gregory@heytings.org; helo=heytings.org 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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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:264020 Archived-At: --9ehOP8IGLz Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-ID: <5588fb25809e3e2eb2f6@heytings.org> > > Would allowing a regexp solve the expression \alpha-\beta, \alpha+\beta,= =20 > \alpha/\beta, so that \alpha and \beta are prettified seperately? > That's not necessary. Just follow Stefan's advice: (defun texinfo-prettify-symbols-compose-p (start end _match) ;; We know the matches all start with a backslash and end with ;; a word-element. (not (or (memq (char-before start) '(?\\)) (memq (char-syntax (or (char-after end) ?\s)) '(?w)) (nth 8 (syntax-ppss))))) (add-hook 'texinfo-mode-hook (lambda () (push '("\\alpha" . ?=CE=B1) prettify-symbols-alist) (push '("\\beta" . ?=CE=B2) prettify-symbols-alist) (setq prettify-symbols-compose-predicate 'texinfo-prettify-sym= bols-compose-p) (prettify-symbols-mode))) This does what you want. --9ehOP8IGLz--