OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   Re: XML and embedded compound data types (was "Why XML data typin is har

[ Lists Home | Date Index | Thread Index ]
  • From: "Michael Kay" <M.H.Kay@eng.icl.co.uk>
  • To: <xml-dev@ic.ac.uk>
  • Date: Mon, 30 Nov 1998 18:47:58 -0000

>In the case of a date or float, I would argue that they are both compound
>types and should be represented as such.

The popular human representations of dates and floats are compound, but the
intrinsic values are not. They are both points in a one-dimensional space,
the first being discrete and the second pseudo-continuous.

It is possible to choose representations of float and date that require no
parsing to extract, process, or render (localize) the value. I think there
is some merit in choosing a canonical XML representation of dates and floats
that is meaningful to a good proportion of people on the planet, but it is
more important that it is canonical.

In practice I would always recommend ISO 8601 representation for dates. This
is better than using a Julian day number because it is more meaningful to
humans. The parsing of this is so trivial that using XML tagging would not
add value, either for the human reader or the machine recipient.

Mike Kay

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo@ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@ic.ac.uk)


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS