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.help Subject: Re: Quickly check for differences in code and locate possible errors. Date: Tue, 28 Mar 2023 15:03:13 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9994"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs To: Hongyi Zhao Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Mar 28 17:03:57 2023 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 1phAra-0002F0-JS for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 28 Mar 2023 17:03:54 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1phAr9-0005hi-0M; Tue, 28 Mar 2023 11:03:27 -0400 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 1phAr3-0005gG-8V for help-gnu-emacs@gnu.org; Tue, 28 Mar 2023 11:03:21 -0400 Original-Received: from heytings.org ([95.142.160.155]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1phAqy-0006rx-18 for help-gnu-emacs@gnu.org; Tue, 28 Mar 2023 11:03:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1680015794; bh=JGW44RHyGHrQb83w39g7iu5qEp9HyUerGlKjHpDC8I4=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=XmbtRTqc3kvHVpUr0v9fhYn6s5aTpUrjH6V3CMtOywhB8KdngXEsJ9TfzvL+Edktv CELqAwszYMM8sqgHJy6QcfxWuPBTb3hE0tpdscLYWKhvM/FuPY6XNehG9N+2DVLBM7 aWpYf1ZAW8C43WtMJGMl0c5O5MBtVQQyf6WBufP98t/tu3YvRahHQYQonO3JBfMlSh sBBMIUN/XhNlDc4SJdVOBf8DXRL8ZZmbG1nL4bKauf2cyxnmrXHbjUMhwlsXDTvyck fccj5gmMlcjQCNT50Jch7SYFKK+6MtasM1IVtXmOlD9EUx+stCehuglCnKHq1XH7Ix esCztQy7ux5qg== In-Reply-To: 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: 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:143143 Archived-At: > > I would like to know whether it's possible to quickly check for > differences in code and locate possible errors with the help of Emacs. > Any tips will be appreciated. > I think the simplest way to do what you want is: (defun ediff-regions-characterwise () (interactive) (let ((ediff-forward-word-function #'forward-char)) (call-interactively 'ediff-regions-wordwise))) Open the two files, call M-x ediff-regions-characterwise, select the two buffers, and type C-x h C-M-c twice.