From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/40701 Path: main.gmane.org!not-for-mail From: prj@po.cwru.edu (Paul Jarc) Newsgroups: gmane.emacs.gnus.general Subject: Re: possible strange idea about hierarchical lists Date: Tue, 04 Dec 2001 12:44:18 -0500 Organization: What did you have in mind? A short, blunt, human pyramid? Sender: owner-ding@hpc.uh.edu Message-ID: References: NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1035176211 2326 80.91.224.250 (21 Oct 2002 04:56:51 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Mon, 21 Oct 2002 04:56:51 +0000 (UTC) Return-Path: Original-Received: (qmail 12320 invoked from network); 4 Dec 2001 17:44:44 -0000 Original-Received: from malifon.math.uh.edu (mail@129.7.128.13) by mastaler.com with SMTP; 4 Dec 2001 17:44:44 -0000 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 16BJcQ-0007j4-00; Tue, 04 Dec 2001 11:44:34 -0600 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Tue, 04 Dec 2001 11:44:21 -0600 (CST) Original-Received: from sclp3.sclp.com (qmailr@sclp3.sclp.com [209.196.61.66]) by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id LAA29742 for ; Tue, 4 Dec 2001 11:44:10 -0600 (CST) Original-Received: (qmail 12314 invoked by alias); 4 Dec 2001 17:44:19 -0000 Original-Received: (qmail 12309 invoked from network); 4 Dec 2001 17:44:18 -0000 Original-Received: from multivac.student.cwru.edu (HELO multivac.cwru.edu) (qmail-remote@129.22.96.25) by gnus.org with SMTP; 4 Dec 2001 17:44:18 -0000 Original-Received: (qmail 4829 invoked by uid 500); 4 Dec 2001 17:44:40 -0000 Original-To: ding@gnus.org In-Reply-To: (Ted Zlatanov's message of "Tue, 04 Dec 2001 12:28:30 -0500") Mail-Copies-To: nobody Mail-Followup-To: ding@gnus.org Original-Lines: 20 User-Agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/20.7 (i386-redhat-linux-gnu) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:40701 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:40701 Ted Zlatanov wrote: > Parsing of the hierarchy specification. It's a tree structure, with > the widest-coverage lists at the top and more specific lists at the > bottom. I suppose it could be hacked as a 2-level list, but a tree > hierarchy is more generic. The 2-level list is just as expressive, I think, and easier to implement. Suppose A contains B, and B contains C, and you have a message addressed to B and C. In order to strip out C, you'd have to traverse the entire tree to first find B; there's no guarantee that the top level will have anything interesting. Also suppose A nd D both contain B. This is actually easier to express with the 2-level list; with a tree, you'd have to duplicate the whole subtree under B. With a 2-level list, you just add B under both A and D, and the code takes care of looking for a top-level B with its own entries under it. paul