• Subject: Re: XML Attributes
  • From: "Phil Hall" <hallp@xxxxxxxx>
  • Date: Fri, 17 Nov 2000 11:53:11 -0600

> What if it's
> <quantity value="999999999/> or something even wacky-er.

This would be flagged as an invalid XML stream by a parser (the parser would
fail checking the stream is 'well formed' and wouldn't get to the validating
stage to check the stream against the DTD, if there is one), because of the
missing " before the />

There are at least some basic check is done by a parser...

> We never even see standards on XML docs from the same comanpany.
> One XML form may have ShipAddress as a tag, and then another on
> may have ShipToAddress

Ah, the old homonyms and symonyms issue. There are DTD/Schema standards out
there, for most of the vertical markets, granted, they are not well
publisised, check out places like www.dtd.com, lists.xml.org, etc.

You still need to decide which DTD fits your useage, but it's better than
creating your own DTD. Of if you feel your DTD/Schema suits you vertical
market, you can register your DTD/Schema with these places for other
companies in your arena to use a the 'standard'

The suggestion that the W3 should take of creating DTD/Schema for all uses
is silly, they haven't the resources or market skills to do so. It's down to
XML users/developers to move away from working with blinkers on and
re-inventing the wheel yet again. There are normally peolpe who have already
worked out a usable DTD/schema, you just need to take the time to go find
it, just like you would say, find the time to go search out the best price
for a new car...

--phil

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