From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: pjb@informatimago.com (Pascal J. Bourguignon) Newsgroups: gmane.emacs.help Subject: Re: Changing the Emacs engine to Guile Date: Tue, 22 Jun 2010 19:28:57 +0200 Organization: Informatimago Message-ID: <87hbkvt1ra.fsf@kuiper.lan.informatimago.com> References: <87fx0g2yu6.fsf@linux-lqcw.site> <87iq5cmjgp.fsf@fh-trier.de> <87y6e81d6f.fsf@linux-lqcw.site> <87mxuoumfb.fsf@kuiper.lan.informatimago.com> <878w671qvm.fsf@linux-lqcw.site> <87tyovtqc3.fsf@kuiper.lan.informatimago.com> <87d3vjz8jm.fsf@linux-lqcw.site> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1291838248 13221 80.91.229.12 (8 Dec 2010 19:57:28 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 8 Dec 2010 19:57:28 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Dec 08 20:57:24 2010 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PQQ8d-0001a0-BG for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 20:57:20 +0100 Original-Received: from localhost ([127.0.0.1]:60987 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQQ8c-0007co-Kj for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 14:57:18 -0500 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 56 Original-X-Trace: individual.net kE7aO5bARmL5N2u5cpfF1QLBR4yyPOGl8jklHcU9BxNRB4o8PP Cancel-Lock: sha1:ZTYzMzY3NTRlMGIzMmZlZDllYjc2MmIyZjA3OWQxNjRjNmE5N2VmYQ== sha1:ubfdxoJVpkNebDDr7Qci/B801yE= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en X-Disabled: X-No-Archive: no User-Agent: Gnus/5.101 (Gnus v5.10.10) Emacs/23.2 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:179182 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:75935 Archived-At: Cecil Westerhof writes: >> this (while (re-search-forward ...)) loop modifies the line for each >> occurence of the regexp, replacing it with (substring substitute-str 0 >> match-length), which is a different replacement string in general. > > Why? I would think the replacement string is the same. (When using > single byte characters.) With: substitute-str = "Abcdef" ; initally start-match = 4 end-match = 12 match-length = 8 substitute-str will become "AbcdefAbcdef", and (substring substitute-str 0 match-length) = "AbcdefAb" while (substring substitute-str start-match end-match) = "efAbcdef" >> I don't know about the other implementations, but with clisp you could >> also try to use the -C option to have your script compiled before >> running it. On big files it might be worthwhile to spend some time >> compiling the script. > > In my script I have: > exec clisp -C "$0" "$@" > > That is not correct? Oh yes. Sorry I overlooked that -C. So the script is compiled and it should run fast on big input. >> But my point here is that in emacs, most code is compiled or byte >> compiled, therefore you should compare the speed of the code generated >> by sbcl vs. guile. Benchmarking is hard. > > As I understood it Guile compiles before executing. That is not correct? > > Well, if the big time difference is nothing to worry about, I'll keep > still. ;-} > > For the moment being I still prefer Emacs Lisp for scripting above > Guile. ;-] > > -- > Cecil Westerhof > Senior Software Engineer > LinkedIn: http://www.linkedin.com/in/cecilwesterhof -- __Pascal Bourguignon__ http://www.informatimago.com/