Dissolve the top level nodes of given range.
splice(number1, number2)
number1 - type: int
number2 - type: int
# This rule removes the _adjs nodes
# from the parse tree, replacing them
# with their children.
@POST
splice(1,2);
@RULES
_xNIL <- _adjs _adjs @@
excise, group, merge, merger, POST Actions