From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: What IDE features do we need? defaults!] Date: Tue, 22 Apr 2008 16:28:05 +0300 Message-ID: References: <87ve2ac2eo.fsf@jurta.org> <20080422115216.GA2609@muc.de> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: ger.gmane.org 1208870919 19352 80.91.229.12 (22 Apr 2008 13:28:39 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 22 Apr 2008 13:28:39 +0000 (UTC) Cc: juri@jurta.org, rms@gnu.org, emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 22 15:29:14 2008 connect(): Connection refused Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JoIYX-0006cd-S1 for ged-emacs-devel@m.gmane.org; Tue, 22 Apr 2008 15:29:10 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JoIXq-00014O-I2 for ged-emacs-devel@m.gmane.org; Tue, 22 Apr 2008 09:28:26 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JoIXn-00014G-Db for emacs-devel@gnu.org; Tue, 22 Apr 2008 09:28:23 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JoIXm-000140-2Y for emacs-devel@gnu.org; Tue, 22 Apr 2008 09:28:23 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JoIXl-00013x-Vi for emacs-devel@gnu.org; Tue, 22 Apr 2008 09:28:22 -0400 Original-Received: from mtaout3.012.net.il ([84.95.2.7]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JoIXf-0002xM-P7; Tue, 22 Apr 2008 09:28:16 -0400 Original-Received: from HOME-C4E4A596F7 ([83.130.1.82]) by i_mtaout3.012.net.il (HyperSendmail v2004.12) with ESMTPA id <0JZQ00B2UBEDNCY2@i_mtaout3.012.net.il>; Tue, 22 Apr 2008 16:42:23 +0300 (IDT) In-reply-to: <20080422115216.GA2609@muc.de> X-012-Sender: halo1@inter.net.il X-detected-kernel: by monty-python.gnu.org: Solaris 9.1 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:95766 Archived-At: > Date: Tue, 22 Apr 2008 11:52:16 +0000 > From: Alan Mackenzie > Cc: emacs-devel@gnu.org > > By contrast, using etags, it could easily take me over a minute to > locate a definition; firstly, M-. took about 4 seconds (on a 2.8 GHz > processor), because the TAGS file was so big. This is a one-time penalty, so it can be alleviated by visiting the TAGS table automatically at startup, or when the (yet non-existent) ``project file'' is read in preparation for working on a project. > Very often, I'd have to do C-u M-. many times to actually locate the > definition. This is indeed a much more serious problem. In addition, etags does not really grok C++ and Java style object-oriented languages, so it cannot, for example, let you complete on class members, or show signatures of class methods, whether in tooltips or elsewhere. > Improving etags this way would be more of a stop-gap than a solution. > It just isn't powerful enough for that sort of proprietary environment. I don't see why not; could you explain? OTOH, we could also base an Emacs solution on something like ID-Utils, but that would require to develop parsers for popular languages such as C++, Java, Python, etc. As yet another alternative, we could use Ebrowse, although it, too, needs some work to catch up with current C++ standards (from a few blatant bugs I recently uncovered in Ebrowse, I conclude that it is almost unused).