W3C home > Mailing lists > Public > www-tag@w3.org > October 2003

Re: Action item on the virtues of error-handling

From: Walden Mathews <waldenm@optonline.net>
Date: Wed, 22 Oct 2003 15:32:43 -0400
To: David Orchard <dorchard@bea.com>
Cc: www-tag@w3.org
Message-id: <01e801c398d3$43ee2db0$0902a8c0@ATTIC56COVE>


The purpose and the mechanism are clear, but have nothing to do
with whether the text is descriptive or prescriptive.  It's the former,
as you correctly noted below.


----- Original Message ----- 
From: "David Orchard" <dorchard@bea.com>
To: "'Walden Mathews'" <waldenm@optonline.net>; "'Dan Connolly'"
Cc: <www-tag@w3.org>
Sent: Wednesday, October 22, 2003 2:42 PM
Subject: RE: Action item on the virtues of error-handling

: > The presence of the language: "the installed base of HTML user agents"
: > makes the "must" interpretation infeasible.  Would the spec
: > be requiring
: > something of an "installed base"?
: >
: The text preceeding the :
: "To facilitate experimentation and interoperability between
:    implementations of various versions of HTML, the installed base of
:    HTML user agents supports a superset of the HTML 2.0 language by
:    reducing it to HTML 2.0:"
: Provides a purpose (to facilitate ..) and a description of a mechanism to
: support the purpose (by reducing it to).  Maybe it could have been worded
: bit better "HTML user agents support a superset..." but I still think that
: does not diminish the (what I call) must ignore rule following the colon.
: I think that "the installed base" phrase is probably irrelevent because
: installed base of HTML user agents is the set of user agents that are in
: existance at any given time. And an HTML user agent is a user agent that
: compliant with HTML.  So "installed base" as part of mechanism description
: doesn't take away from the actual conformance test.
: Further, I believe the text before the colon supports my position that
: experimentation (evolution/exensibility) are desirable properties and are
: acheived by a must ignore rule, which is described after the colon.
: Cheers,
: Dave
Received on Wednesday, 22 October 2003 15:32:41 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 7 January 2015 15:32:40 UTC