From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: SMIE: Indentation after comments Date: Tue, 06 Oct 2020 11:59:14 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29394"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:PgJu8G6lbkJi6uc+CxXoG4GD3AA= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Oct 06 18:02:34 2020 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 1kPpQ9-0007Z7-T1 for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 06 Oct 2020 18:02:33 +0200 Original-Received: from localhost ([::1]:34674 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kPpQ8-0006MP-T8 for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 06 Oct 2020 12:02:32 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51612) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kPpN6-0005Nr-Uq for help-gnu-emacs@gnu.org; Tue, 06 Oct 2020 11:59:27 -0400 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:43476 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kPpN5-00028b-DK for help-gnu-emacs@gnu.org; Tue, 06 Oct 2020 11:59:24 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kPpN0-00049P-Vi for help-gnu-emacs@gnu.org; Tue, 06 Oct 2020 17:59:18 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/06 10:04:18 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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: 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:124335 Archived-At: > The last line of the following example is not indented correctly > whereas the second line is correct. The difference is just a space > before the semi-colon. How can I fix this? You're using the default lexer, which is almost never the right thing to do. It does a good "90%" job, but that's it. Stefan > ============================================================ > int a /**/ ; > int b; > > int a /**/; > int b; > ============================================================ > > Here is the code: > > (require 'smie) > > (setq foobar-grammar > (smie-prec2->grammar > (smie-bnf->prec2 > `((insts (insts ";" insts) (inst)) > (inst ("int" id)) > (id)) > '((assoc ";"))))) > > (defun foobar-rules (kind token) > (message "rule: (%s . %s) at point %d" kind token (point)) > (pcase (cons kind token) > ;; ??? > )) > > (define-derived-mode foobar-mode prog-mode "foobar" > :syntax-table nil > (modify-syntax-entry ?/ ". 124") > (modify-syntax-entry ?* ". 23b") > (modify-syntax-entry ?\n ">") > (setq comment-start "//") > (smie-setup foobar-grammar #'foobar-rules) > (font-lock-add-keywords nil '(("int" . font-lock-keyword-face))) > (font-lock-mode) > (font-lock-ensure (point-min) (point-max)))