Re: [xml] xmlSchema : problem with the 'token' datatype ?

[Kasimier Buchcik <kbuchcik 4commerce de>]

Hi,

On Wed, 2005-05-11 at 13:31 +0200, GUY Fabrice wrote:
> Hi,
>
> I have this schema :
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
>   <xsd:element name="element" type="xsd:token"/>
> </xsd:schema>
>
>
> And for example the xml file :
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <element>       test</element>
>
> And with xmllint (version 2.6.19) this document validates (although
> the value of <element> begins with spaces).
> It seems that the value of this 'token' element is corrected before
> validating it (using xmlSchemaCollapseString). Is this behaviour
> correct ?

Yes, the behaviour is correct. xs:token has a whitespace facet with
a value of "collapse", so all leading- and trailing whitespace is
removed, plus all adjacent whitespace characters are collapsed into
a single space character; this happens prior to any validation.
Actually, out of the built-in types only xs:string and
xs:normalizedString have a whitespace value other than "collapse".

Some relevant links:

http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/structures.html#d0e1654 
http://www.w3.org/TR/xmlschema-2/#dt-whiteSpace 
http://www.w3.org/TR/xmlschema-2/#built-in-datatypes  

Regards,

Kasimier (or Kasiemir as Daniel thinks my name is :-D)