[DFDL-WG] clarification needed: when expressions are evaluated

[Mike Beckerle]

Suppose I have

<dfdl:defineFormat name="myFormat">
    <dfdl:format byteOrder="{../bOrder }"/>
</dfdl:defineFormat>

<dfdl:format encoding="{ ../enc }"/>

Is that immediately nonsense, since ../bOrder isn't meaningful at top level
where formats are defined?
What about ../enc - evaluated at top level or when the encoding property is
needed?

I.e.,  I use this format down inside my schema

....<element ref="myElement" dfdl:ref="myFormat"/>

Does the relative path ../bOrder get executed relative to myElement?

My initial thought was that relative paths aren't usable in top-level
definitions, but if that's the case then escapeScheme's, which can only be
defined at top level currently,  would not have any way to take advantage
of the runtime-expression capabilites of escapeChar, escapeEscapeChar, etc.

...mike




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