[DFDL-WG] dfdl:outputValueCalc referencing itself

[Mike Beckerle]

You should use two elements for this, and hide the original one.

I think the non-circularity requirement is pretty important actually.

Note that you can refer to the same element of some other say, array
instance, i.e.,

<element name="foo" .... dfdl:inputValueCalc="{ fn:concat(if (pos() ==
1) then "" else ../foo[pos() - 1] , .) }" />



On Wed, Jun 26, 2013 at 11:28 AM, Steve Hanson <smh at uk.ibm.com> wrote:
> The spec currently says that the expression in dfdl:outputValueCalc must not
> refer to itself.  I am wondering if that is too restrictive. For example,
> what if I wanted to apply a simple transformation to the data before it is
> serialized, example:
>
> <xs:element name="f1" type="xs:string"
> dfdl:outputValueCalc="{fn:upper-case(.)}" />
>
> Regards
>
> Steve Hanson
> Architect, IBM Data Format Description Language (DFDL)
> Co-Chair, OGF DFDL Working Group
> IBM SWG, Hursley, UK
> smh at uk.ibm.com
> tel:+44-1962-815848
> Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with number
> 741598.
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-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com