Re: Pointers to whois++ documents
Alan Emtage <bajan@bunyip.com> Thu, 18 November 1993 17:48 UTC
Received: from ietf.nri.reston.va.us by IETF.CNRI.Reston.VA.US id aa07978; 18 Nov 93 12:48 EST
Received: from CNRI.RESTON.VA.US by IETF.CNRI.Reston.VA.US id aa07972; 18 Nov 93 12:48 EST
Received: from ucdavis.ucdavis.edu by CNRI.Reston.VA.US id aa15832; 18 Nov 93 12:48 EST
Received: by ucdavis.ucdavis.edu (4.1/UCD2.05) id AA19469; Thu, 18 Nov 93 08:59:03 PST
X-Orig-Sender: ietf-wnils-request@ucdavis.edu
Received: from mocha.bunyip.com by ucdavis.ucdavis.edu (4.1/UCD2.05) id AA17160; Thu, 18 Nov 93 08:30:26 PST
Received: by mocha.bunyip.com (5.65a/IDA-1.4.2b/CC-Guru-2b) id AA11700 (mail destined for ietf-wnils@ucdavis.edu) on Thu, 18 Nov 93 11:32:07 -0500
Message-Id: <9311181632.AA11700@mocha.bunyip.com>
Sender: ietf-archive-request@IETF.CNRI.Reston.VA.US
From: Alan Emtage <bajan@bunyip.com>
Date: Thu, 18 Nov 1993 11:32:06 -0500
In-Reply-To: Mark Prior's message as of Nov 18, 9:59
Mime-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
X-Mailer: Mail User's Shell (7.2.3 5/22/91)
To: Mark Prior <mrp@itd.adelaide.edu.au>
Subject: Re: Pointers to whois++ documents
Cc: ietf-wnils@ucdavis.edu
> PROTOCOL CHANGES > > 1) The HOLD attribute has changed from a unary to binary operator. You > need to say "hold=true" rather than just "hold". > > I fail to see the point of this, what is the problem with just having > an unary operator? Are you proposing that some servers may have hold > on by default? The problem is one of parsing the input. As constructed in the current draft the parsing of unary constraint operators is difficult (and I believe "impossible" in some cases in that the results are ambiguous). > 2) The LIST, COMMANDS and CONSTRAINTS, commands create "virtual" > templates for their responses. For example, the CONSTRAINTS command > returns: > > I assume "virtual" means that you can't construct a search query to > find them. If this is true then that's OK. Correct. It's just so that the client will have a consistent response format to deal with so that you don't have to have separate parsers for different kinds of responses. > 3) System responses (starting with a '%') have status numbers, following > the conventions for the FTP protocol (rfc 959). Values of 100 - 199 are > informational and temporary, 200 - 299 are status values and permenant. > 300 - 399 are non fatal temporary warnings, 400 - 499 are permenant > warnings and 500 - 599 are fatal permenant errors. > > Well if you are going to have 3 digit codes are you going to define > what the other digits mean or is this just a silly way of emulating > VMS's I, W, E, F severity levels? This is to allow system responses to have a language-independent format. We will need to define what each response means (much like FTP, SMTP, NNTP etc) but this is much easier than having to deal with english-language system responses which would then have to be translated or strcmp()'d to see what the response is. It also gives much more flexibility to handle expanded response modes. > 4) ABRIGED responses are given after 10 hits, not 2 as in the RFC. The > WAIS search system does not permit the determination of what element of > the inital search query caused a match, so they do not return this value. > It is possible that very few search engines will allow this and this may > need to be reviewed. The ABRIDGED responses here have degenerated to > HANDLE responses. > > I think it would be better, until smart formatting whois++ clients are > widely deployed, to retain the 2 item limit between (default) full and > abridged/handle. If you increase it to 10 that means that potentially > you can get 10 full listing flashing by you on your screen. That's > fine for people who have window systems with scrollbars but there are > still a huge number of people with dumb terminals. This is bad enough > with something like archie where only the last matches (probably not > in your country) will be left on the screen but with whois++ it > probably means the hit you wanted has scrolled off the top :-) That's why we have file redirects, script(1), more(1), and less(1). -- -Alan ------------------------------------------------------------------------------ Alan Emtage, "The Left in Canada is more gauche Bunyip Information Systems, than sinister" Montreal, CANADA -The Economist bajan@bunyip.com Voice: +1 (514) 875-8611 Fax: +1 (514) 875-8134
- Pointers to whois++ documents Chris Weider
- Re: Pointers to whois++ documents Peter Deutsch
- Re: Pointers to whois++ documents Joan Gargano
- Re: Pointers to whois++ documents Alan Emtage
- Re: Pointers to whois++ documents Mark Prior
- Re: Pointers to whois++ documents Alan Emtage
- Re: Pointers to whois++ documents Mark Prior