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@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@uk.ibm.com

> tel:+44-1962-815848

> Unless stated otherwise above:

> IBM United Kingdom Limited - Registered in England and Wales with
number

> 741598.

> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire
PO6 3AU

>

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-- 

Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | 
www.tresys.com

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