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[Bug 6531] New: [FOerrata] fn:concat and '...' not defined

From: <bugzilla@wiggum.w3.org>
Date: Wed, 04 Feb 2009 17:13:48 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-6531-523@http.www.w3.org/Bugs/Public/>


           Summary: [FOerrata] fn:concat and '...' not defined
           Product: XPath / XQuery / XSLT
           Version: Recommendation
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: minor
          Priority: P3
         Component: Functions and Operators
        AssignedTo: mike@saxonica.com
        ReportedBy: bungeman@gmail.com
         QAContact: public-qt-comments@w3.org

This is somewhat nit-picky but fn:concat is specified as

fn:concat($arg1 as xs:anyAtomicType?,
$arg2 as xs:anyAtomicType?,
... ) as xs:string

but the meaning and usage of '...' is never defined. This should be defined in
section 1.4. Also, the base type of these optional arguments should be stated
explicitly, like

fn:concat($arg1 as xs:anyAtomicType?,
$arg2 as xs:anyAtomicType?,
... as xs:anyAtomicType?) as xs:string

instead of implicitly by stating this only in the text following. I realize
that fn:concat is the only vararg function and is rather special cased, but I
believe that making such changes would make the meaning far more explicit.

So the proposal is to add to section 1.4 wording to the effect of "The last
parameter declaration of a function signature may specify '...' instead of a
$parameter-name. This indicates that there may be a variable number of
arguments passed to the function. The type of these arguments must match the
type specified by the parameter-type of the parameter declaration." and change
the fn:concat signature as described above.

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Received on Wednesday, 4 February 2009 17:13:57 UTC

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