[antlr-interest] How to combine rules into one node for an AST?

[Steve Bennett]

Say I have a rule like this:

Rule: MARKER sometext moretext ENDMARKER
-> ^(MARKER sometext moretext);

I end up with a MARKER node with two subnodes. What's the best way to
end up with a single subnode that is the concatenation of those two
rules? Do I have to do it manually?

Thanks,
Steve