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Subject: RE: [plcs] XML Schema in PLCS - P28 edition 2 support
I will take a look. Regarding the trailing commas ….. I have no plans to address this. It is not that onerous to remove them. Regards -----Original Message-----
Hi Rob,
I do now get a result, but I don't think it is the proper P28-ed2 that I was hoping for. It seems like just a wrapper rather than any transformation to P28. I also note that the Aviation Dex Express schema seems to include both the Dex schema name and the AP239 schema name within the rules (inherited from the modules I suppose). I presume that this will not compile as an Express schema (conflicting schema names), so I assume there is a work around of some sort for this. I had changed all those for Dex4 to be the same as the Dex schema name, but maybe this is not necessary? Other feedback on this is the (old) issue of the trailing comma "," after the pruning of subtypes which causes compilation errors. Can you
take a look at this as soonest you can? I will check everything in so that you
can see these files. ________________________________ From: Rob
Bodington [mailto:rob.bodington@eurostep.com]
Hi The DIS version of part 28 edition 2 "ISO/DIS 10303-28e2, STEP Part 28e2, Implementation methods: XML representations of EXPRESS schemas and data" was published at the end of January.
This is a specification for deriving an XML schema definition from the EXPRESS models. It also defines the XML that PLCS will use for exchanging data.
Over the last few weeks Eurostep (Mike Ward) has put significant effort into modifying the XSL used to automatically generate the XML Schemas for the DEXs (and any other EXPRESS model) to accommodate the changes made to the standard.
The XSL has been checked in to STEPmod and is available in DEXlib (DEXlib just reuses from STEPmod). Do a cvs update on: stepmod\xsl stepmod\dtd
This will then work in DEXlib and can be used to generate the XSD for DEXs.
Mike is also updating the DEXlib info section to provide some examples of some EXPRESS fragments, the corresponding P28 XML Schema, and an example XML fragment.
In addition, there is some example XML data provided in the 2410 business concept.
Regards
-------------------------------------------
Email:
Rob.Bodington@eurostep.com
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