RE: [xml-dev] Namespaces, Xml Schema Whitespace normalization, xs:anyURI, and URILiterals in XPath 2.0

[Michele Vivoda <idmichele@yahoo.it>]

> > So 
> > 
> > http://www.example.com/Example with two  spaces
> > 
> > is not a valid xs:anyURI 
> 
> You seem to be assuming that because it's not a
> valid URI then it's not a
> valid xs:anyURI. This doesn't follow. The schema
> spec allows an xs:anyURI to
> contain what I call a "wannabe URI": more formally,
> it can contain any
> string that can be mapped to a URI by following the
> escaping procedure in
> section 5.4 of XLink. This mapping performs
> percent-encoding on all
> "disallowed characters"; a space is a disallowed
> character that maps to %20;
> therefore a space is allowed in an xs:anyURI value
> (even though it not
> allowed in an IRI as defined by RFC 3987).

You're right, didn't know that, 
I went through the spec(s) you mentioned..
I find it strange anyway, 
is a little bit too much for machines 
data exchange and too little for an user interface.

I am not sure if I want this uri 
to be reported as valid when doing
validation  of machine-written data 
( like for example for the urls of a 
publishing system):

1) http://www.example.org/c a/c%20b

When I am not so strict and I support 
the user with some uri escaping
I would like to help him when he types 

2) http://www.example.org/c  a/

to be resolved 'correctly' to

http://www.example.org/c%20%20a/

(as for example windows explorer does)

and not to

http://www.example.org/c%20a/

may be I am missing something..


Just to be clear: this should be a valid xs:anyURI
isn't it ? http://www.example.org/c a/c%20b
and when I 'map' it to an URI becomes

http://www.example.org/c%20a/c%20b

Right ?

Greetings
Michele




	

	
		
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