david
the doctype declaration specifies both the dtd to be used and the root
element from that dtd. this allows any subtree to be used.
john w. iobst, ph.d.
naa
vice president - technical research
703/902-1838 (p)
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, August 08, 2000 11:15 AM
To: [EMAIL PROTECTED]
Subject: More than one root element in a DTD?
Within the context of electronic commerce, is there ever more than
one root element in a DTD? If so, what is the practical use/meaning
of this?
Again in the context of electronic commerce, if the DTD name for an
XML document is an absolute URL, do users want a validating parser
to go out to the web and retrieve the DTD each time a document refers
to it? Isn't this an intolerable amount of overhead?
Also, from a validation perspective, it seems common to specify the
DTD name using a relative path in the DOCTYPE element. What
is commonly done to prevent two different trading partners from
sending two different documents based on two different DTDs but both
the DTD's are named "po.dtd?"
David Hixon
IBM Global Services
Tampa, FL USA
8-536-7382, (813) 801-7382
[EMAIL PROTECTED]
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