Mike
I think I prefer that the element overrides
the type even though it will look odd for in-line types.
However I don't agree with your semantics
for complexTypes. Wouldn't 'Override before scoping' be simpler
and more consistent. That is, the element overrides the complexType but
not the content. Otherwise you cannot have a 'local' override for an in-scope
property.
For your example
<complexType dfdl:encoding="ebcdic">
...
<element
name="x" dfdl:encoding="ascii">
<complexType>
<sequence dfdl:separator="," dfdl:encoding="ebcdic">
...
<sequence dfdl:separator="|">
...
The "," would be ebcdic and
the "|" would be ascii
Alan Powell
MP 211, IBM UK Labs, Hursley, Winchester, SO21 2JN, England
Notes Id: Alan Powell/UK/IBM email: alan_powell@uk.ibm.com
Tel: +44 (0)1962 815073
Fax: +44 (0)1962 816898
| From:
| "Mike Beckerle" <mbeckerle.dfdl@gmail.com>
|
| To:
| <dfdl-wg@ogf.org>
|
| Date:
| 13/05/2009 22:25
|
| Subject:
| [DFDL-WG] elements and combining properties
with their types |
I spent some real time thinking about this
issue today.
Attached is a memo on the subject which is
big enough that I didn't want to just make it an email body.
Summary: I think current 034 semantics are
broken and should be fixed along the lines of the element
- overrides
- type principle. The example in the scoping
section is not right.
But the issue has some depth to it. E.g.,
I think the grammar productions are broken currently and we need to fix
those also.
See attached.
...mike
Mike Beckerle | OGF DFDL
WG Co-Chair | CTO | Oco, Inc.
Tel: 781-810-2125 | 100 Fifth Ave., 4th Floor, Waltham MA 02451
| mbeckerle.dfdl@gmail.com
[attachment "elements-and-types.doc" deleted by Alan Powell/UK/IBM]
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