We don't have a java based approach to such things since our platform is very C/C++ centric so I appreciate that the requirement states the support in the DFDL schema must be language agnostic. With how you have it, it seems any namespace can be used so I'm wondering if the XPath and DFDL namespaces are going to be allowed. If so then are you opening the door to allow implementation of functions in the XPath namespace that aren't documented as supported or even a DFDL one that hasn't been supported yet by the DFDL parser?


Regards,

Bradd Kadlecik
z/TPF Development

Phone: 1-845-433-1573
E-mail:
braddk@us.ibm.com
2455 South Rd
Poughkeepsie, NY 12601-5400
United States


Inactive hide details for Mike Beckerle ---01/09/2020 12:15:44 PM---There's no write up in offical Experimental Feature proposaMike Beckerle ---01/09/2020 12:15:44 PM---There's no write up in offical Experimental Feature proposal form yet,, but there are these things a

From: Mike Beckerle <mbeckerle.dfdl@gmail.com>
To: DFDL-WG <dfdl-wg@ogf.org>
Date: 01/09/2020 12:15 PM
Subject: [EXTERNAL] [DFDL-WG] pre-proposal for new experimental feature: User-defined Functions (UDF)
Sent by: "dfdl-wg" <dfdl-wg-bounces@ogf.org>





There's no write up in offical Experimental Feature proposal form yet,, but there are these things about the Daffodil UDF implementation that is in forthcoming daffodil 2.5.0.

https://cwiki.apache.org/confluence/display/DAFFODIL/Proposal%3A+Feature+to+Support+User+Defined+Functions

https://github.com/apache/incubator-daffodil/tree/master/daffodil-udf

Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com
Please note: Contributions to the DFDL Workgroup's email discussions are subject to the OGF Intellectual Property Policy
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