From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Stuart D. Herring" Newsgroups: gmane.emacs.devel Subject: Re: A question about read syntax and compiled backreferences Date: Mon, 29 Jan 2007 12:29:59 -0800 (PST) Message-ID: <36785.128.165.123.18.1170102599.squirrel@webmail.lanl.gov> References: <85ac04xhg3.fsf@lola.goethe.zz> <85tzybsdd8.fsf@lola.goethe.zz> <85tzybqugk.fsf@lola.goethe.zz> Reply-To: herring@lanl.gov NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: sea.gmane.org 1170102627 21103 80.91.229.12 (29 Jan 2007 20:30:27 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 29 Jan 2007 20:30:27 +0000 (UTC) Cc: Miles Bader , Andreas Schwab , Emacs Devel , Juanma Barranquero To: "David Kastrup" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Jan 29 21:30:20 2007 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 1HBd8t-0001kb-Kd for ged-emacs-devel@m.gmane.org; Mon, 29 Jan 2007 21:30:19 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HBd8t-0006mW-38 for ged-emacs-devel@m.gmane.org; Mon, 29 Jan 2007 15:30:19 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HBd8i-0006m9-Lq for emacs-devel@gnu.org; Mon, 29 Jan 2007 15:30:08 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HBd8f-0006lv-TV for emacs-devel@gnu.org; Mon, 29 Jan 2007 15:30:07 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HBd8f-0006ls-O9 for emacs-devel@gnu.org; Mon, 29 Jan 2007 15:30:05 -0500 Original-Received: from mailwasher.lanl.gov ([192.65.95.54] helo=mailwasher-b.lanl.gov) by monty-python.gnu.org with esmtp (Exim 4.52) id 1HBd8d-0007W9-NR; Mon, 29 Jan 2007 15:30:03 -0500 Original-Received: from mailrelay1.lanl.gov (mailrelay1.lanl.gov [128.165.4.101]) by mailwasher-b.lanl.gov (8.13.8/8.13.8/(ccn-5)) with ESMTP id l0TKU0jT014803; Mon, 29 Jan 2007 13:30:00 -0700 Original-Received: from webmail1.lanl.gov (webmail1.lanl.gov [128.165.4.106]) by mailrelay1.lanl.gov (8.13.8/8.13.8/(ccn-5)) with ESMTP id l0TKTxnO023548; Mon, 29 Jan 2007 13:29:59 -0700 Original-Received: from webmail1.lanl.gov (localhost.localdomain [127.0.0.1]) by webmail1.lanl.gov (8.12.11.20060308/8.12.11) with ESMTP id l0TKTxTB016324; Mon, 29 Jan 2007 13:29:59 -0700 Original-Received: (from apache@localhost) by webmail1.lanl.gov (8.12.11.20060308/8.12.11/Submit) id l0TKTxES016322; Mon, 29 Jan 2007 12:29:59 -0800 X-Authentication-Warning: webmail1.lanl.gov: apache set sender to herring@lanl.gov using -f Original-Received: from 128.165.123.18 (SquirrelMail authenticated user 196434) by webmail.lanl.gov with HTTP; Mon, 29 Jan 2007 12:29:59 -0800 (PST) In-Reply-To: <85tzybqugk.fsf@lola.goethe.zz> User-Agent: SquirrelMail/1.4.8-2.el3.7lanl X-Priority: 3 (Normal) Importance: Normal X-PMX-Version: 4.7.1.128075 X-detected-kernel: Linux 2.4-2.6 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:65601 Archived-At: > If it avoids the circle, it presumably also detects it. Why can't it > throw an error then instead of producing output that can't be read in > again? Sometimes it neither avoids the circle nor fails, yet produces wrong output: (let* ((x (vector)) (y (cons x x))) (princ y)) just prints ([] . []), and the reader will not generate two `eq' vectors from reading this. Davis -- This product is sold by volume, not by mass. If it appears too dense or too sparse, it is because mass-energy conversion has occurred during shipping.