Steve
I have made some minor changes to you
proposal
- Move lengthKind pattern out separately
to avoid having to implement regular expressions when only want delimited.
- moved hidden to expression as you
cannot really set a hidden field without an expression.
- removed duplicate calendars
I note that the core cannot implement
simple use cases like COBOL occurs depending on or non-adjacent length
fields. Perhaps we should have occursCountKind and lentghKind 'embeded'
and allow paths.
|
|
Regards
|
|
|
| Alan Powell
|
|
|
| Development - MQSeries, Message Broker,
ESB
|
| IBM Software Group, Application and
Integration Middleware Software
|
| -------------------------------------------------------------------------------------------------------------------------------------------
|
| IBM
|
| MP211, Hursley Park
|
| Hursley, SO21 2JN
|
| United Kingdom
|
| Phone: +44-1962-815073
|
| e-mail: alan_powell@uk.ibm.com |
| From:
| Steve Hanson/UK/IBM@IBMGB
|
| To:
| dfdl-wg@ogf.org
|
| Date:
| 07/07/2010 14:47
|
| Subject:
| [DFDL-WG] Subsetting the DFDL spec |
Some thoughts about subsetting the DFDL spec to make it more consumable
for readers and implementors.
We need to decide how the use of a subset is indicated in a DFDL xsd.
It can be implicit by the properties referenced, or explicit up front.
The difference is best illustrated by an example. Let's say Bidi
support is a subset and I don't want to use Bidi. If using the implicit
method, then I still need the dfdl:textBidi property to be set to 'no'
even when in subset mode because the same xsd could be used by a full DFDL
processor and it will expect a value. If using explicit, then I don't
need to set the dfdl:textBidi property at all, because the DFDL processor
will never look for it unless the xsd is switched to include that subset.
Here's a straw man for some subsets.
Regards
Steve Hanson
Strategy, Common Transformation & DFDL
Co-Chair, OGF DFDL WG
IBM SWG, Hursley, UK,
smh@uk.ibm.com,
tel +44-(0)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
[attachment "Subset_proposal_v1.ppt" deleted by Alan Powell/UK/IBM]
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