Having a series of nodes in setups in a helper module:
\startxmlsetups xmlcommon:setups
	\xmlsetsetup{#1}{error|comment|... etcetera}{xmlcommon:*}
\stopxmlsetups
\xmlregistersetup{xmlcommon:setups}

I would like to check if a certain node is in that series of nodes. For example doing \doifelse{\xmltag{#1}}... where the true branch is taken when \xmltag{#1} is one of those registered in the xmlcommon:setups.

Is that possible? Then what macro has to be called?

dr. Hans van der Meer