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   RE: XML Schema and international Booleans

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  • From: "Arnold, Curt" <Curt.Arnold@hyprotech.com>
  • To: "'xml-dev@ic.ac.uk'" <xml-dev@ic.ac.uk>
  • Date: Wed, 10 Nov 1999 09:48:20 -0700

>>Does this mean that I cannot create sub types of boolean which allows
>>other languages  than English?
>>This is neccesary because in Swedish "true"="sant" and "false"="falskt"

Yes, at least currently.

There are a couple of issues here that have shown up in messages on the W3C
Schema comments log such as
html and

  The first is that both the lexical and value space are inherited when you
create a derived datatype.  This means that you could not, for instance,
have a derived decimal class that accepted numbers with commas as decimal
separators or a derived real class that accepted pi as a valid
representation.  My suggestion was to add a transform element that would
allow you transform the derived datatypes lexical space to the lexical space
of the basetype to something like:

<datatype name="symreal">
	<basetype name="real"/>
	<transform match="pi" replace="3.1415926"/>
	<transform match="e" replace="2.7xxxxxxx"/>


<datatype name="intBoolean">
	<!--  I inherit the boolean data space -->
	<basetype name="boolean"/>
	<!-- match and replace would be regular expression translation,
first matching transform would take precedence -->
	<transform match="0" replace="true"/>	
	<transform match="1" replace="false"/>
	<transform match="sant" replace="true"/>	
	<transform match="falskt" replace="false"/>

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