Rtiddsgen2 and Custom Directives

Hey guys,

I am looking for a way to add some custom directives to our IDL definitions.  I would like to be able to specify some tags and metadata for each of the fields we define.  These IDL files are run through rtiddsgen2 to generate the C++11 code, and then run through a second time with the -convertToXml switch so that we can easily parse these files in a C# application.  I'd like to be able to get this metadata into the XML files so that we can have access to them in the C# app for things like UI input validation and such.  I don't need these to appear in any of the C++ generated code, but right now, any unrecognized directive blows up rtiddsgen instead of just ignoring it.

For example:

IDL:

struct ThisIsAStruct 
{ 
    long field1; //@key 
                 //@minvalue 10 
                 //@maxvalue 100 
}

And the converted XML would look like this:

<struct name="ThisIsAStruct">
    <member name="field1" id="1" type="long" key="true" minvalue="10" maxvalue="100"/>
</struct>

Is this possible via some Velocity template magic?  Or do you have any other suggestions to accomplish this?

Thanks!