- From: James Clark <jjc@jclark.com>
- Date: Fri, 24 Mar 2000 12:05:27 +0700
- To: gmarcy@us.ibm.com
- CC: www-xpath-comments@w3.org
A FunctionName is a QName and can contain a colon.
I think it would be clearest to add a sentence saying "If the character
following a QName (possibly after any intervening ExprWhitespace) is (,
then the token must be recognized as a FunctionName."
The current wording is almost defensible because the grammar for QName
in the Namespaces Rec ends with NCName, thus any occurrence of a QName
followed by a ( is also an instance of an NCName followed by (.
gmarcy@us.ibm.com wrote:
>
> I have run across the following inconsistency in the spec:
>
> In section "3.7 Lexical Structure", it says the following:
>
> "If the character following an NCName (possibly after intervening
> ExprWhitespace) is (, then the token
> must be recognized as a NodeType or a FunctionName."
>
> and
>
> "Otherwise, the token must not be recognized as a MultiplyOperator,
> an OperatorName, a NodeType, a
> FunctionName, or an AxisName."
>
> However, the production for FunctionName reads:
>
> [35] FunctionName ::= QName - NodeType
>
> So the question is "Can a FunctionName contain a ':' character?" If it
> can, then the earlier prose needs to
> say that the '(' can follow a QName, not just an NCName. If not, then the
> production for FunctionName
> should be "FunctionName ::= NCName - NodeType".
>
> Comments?
>
> Glenn Marcy
> Technical Consultant
> XML Technology Group, IBM
Received on Friday, 24 March 2000 00:06:23 UTC