This spec is written very confusing
Selector
Field
Schema
Component Constraint: Fields Value OK
All of the
following must be true:
1 Each member of the {fields}
must be a valid XPath expression, as defined in [XPath].
2 One of the following must be true:
2.1 It must conform to the
extended BNF given above for Selector, with
the following modification:
My interpretation is for field, just change the Path definition that
was used in the Selector definition
So. Field becomes:
XMLSpy treats it this way. ( Or so I believe, based on my testing. )
Bill Riegel
LandMark Graphics
713-839-3388
-----Original Message-----
From: Chiusano Joseph [mailto:chiusano_joseph@bah.com]
Sent: Tuesday, May 20, 2003 12:44 PM
To: Murali Mani
Cc: Jeff Lowery; 'Bill Riegel'; 'xml-dev@lists.xml.org'
Subject: Re: [xml-dev] having problems with the "|" in field's
element in the xs:key el ement
Oh, I see now - please disregard my last e-mail. Thanks for putting me
on the "path" to enlightenment. :)
Murali Mani wrote:
>
> that is correct, if you see
> http://www.w3.org/TR/xmlschema-1/#coss-identity-constraint
>
> it says selector can include |, but field cannot include |. This
is to be
> expected, right?, from what is the general principle: any path
expression
> in the field should return one and exactly one value.
>
> cheers and regards - murali.
>
> On Tue, 20 May 2003, Jeff Lowery wrote:
>
> > Not for the field XPaths. If the OR's not in single quotes ('|'),
then it's
> > part of the BNF grammar, not part of the XPath grammer.
> >
> > > -----Original Message-----
> > > From: Bill Riegel [mailto:BRiegel@lgc.com]
> >
> > > This list the "|" has a valid option.
> >
> >
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