[DFDL-WG] pre-proposal for new experimental feature: User-definedFunctions (UDF)

[Bradd Kadlecik]

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                                                2455 South Rd 
 E-mail: braddk at us.ibm.com                                         Poughkeepsie, NY 
                                                                         12601-5400 
                                                                      United States 
                                                                                    







From:	Mike Beckerle <mbeckerle.dfdl at gmail.com>
To:	DFDL-WG <dfdl-wg at 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 at 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
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