From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: list-print-separator Date: Mon, 25 Apr 2011 11:51:46 -0300 Message-ID: References: <8762qr8x23.fsf@lifelogs.com> <87vcy7mbxq.fsf@lifelogs.com> <87hb9nglen.fsf@lifelogs.com> <877haiebj9.fsf@lifelogs.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1303743117 11104 80.91.229.12 (25 Apr 2011 14:51:57 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 25 Apr 2011 14:51:57 +0000 (UTC) Cc: emacs-devel@gnu.org To: Ted Zlatanov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 25 16:51:54 2011 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QEN8j-0001dE-UL for ged-emacs-devel@m.gmane.org; Mon, 25 Apr 2011 16:51:54 +0200 Original-Received: from localhost ([::1]:33556 helo=lists2.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEN8j-0003Eb-JD for ged-emacs-devel@m.gmane.org; Mon, 25 Apr 2011 10:51:53 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:55567) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEN8h-0003EW-4h for emacs-devel@gnu.org; Mon, 25 Apr 2011 10:51:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QEN8g-0000nd-88 for emacs-devel@gnu.org; Mon, 25 Apr 2011 10:51:51 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]:60434) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEN8g-0000nZ-2V for emacs-devel@gnu.org; Mon, 25 Apr 2011 10:51:50 -0400 Original-Received: from 121-249-126-200.fibertel.com.ar ([200.126.249.121]:35171 helo=ceviche.home) by fencepost.gnu.org with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1QEN8f-0000qS-Hd; Mon, 25 Apr 2011 10:51:49 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 46D7E6618A; Mon, 25 Apr 2011 11:51:46 -0300 (ART) In-Reply-To: <877haiebj9.fsf@lifelogs.com> (Ted Zlatanov's message of "Mon, 25 Apr 2011 07:54:50 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.10 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:138734 Archived-At: SM> Hmm... I wouldn't try to compare the speed of `print' with that of `pp' SM> since they do very different amounts of work and are implemented in SM> languages whose performance is very different, but there's clearly room SM> for improvement in pp's speed. > I want to print out a large ELisp data structure prettily. The Gnus > newsrc.eld, for example, or the Gnus registry hashtable. I'll use > whatever makes it happen as fast as possible. The newsrc.eld has never been pretty and it's never been a problem, AFAIK. Not sure what's the "Gnus registry", so I can't comment on that. SM> You could use an ad-hoc pp-like function, maybe? The way I see it, you SM> typically either need "fast" or "pretty" but very rarely both. > With my list-print-separator patch you get fast and OK-looking. > Are you concerned it's only useful sometimes? The speed penalty is > minor if it's not used. It's just added complexity for a very unconvincing result. I'd rather make `pp' faster, or if it's too difficult split it into a "print-really-pretty" and "print-quickly-and-not-too-ugly". Stefan