Wolfgang, Hans, et al,
The new \startuserdata macro looks very promising, and can simplify some
work I have in progress.
The first question: the wiki example and the source use
to retrieve the value of optionkey and anotherkey. Is there a way to
provide the key/value pairs in a manner that they can be retrieved with
the getparameters mechanism, as:
\getrawparameters [XX] [optionkey=,anotherkey=,#1]
This has the added advantage of allowing the setting of a default value, as
\getrawparameters [XX] [optionkey=2em,anotherkey=,#1]
Or is there a reason not to use getparameters in this setting?
The second question: Is there the possibility to enhance the syntax so
that one can write
\startMyStuff [optionalkey=value, anotherkey=value]
\startuserdata [MyStuff] [optionalkey=value, anotherkey=value]
Such syntactic sugar makes sweeter reading of the text, and makes
clearer what is being done when nesting the macro.