# A → β # β define([ERROR], [ # transition to the next node define([$0], defn([NEXT_ITEM])) divert($0_QU)dnl <$0_NAME> [$1] $2 divert($0_END)dnl divert(-1) ]) # β define([NEXT_ITEM], [ divert($0_QU)dnl [$1] $2 divert(-1) ]) # A → β define([QUERY], defn([ERROR])) define([WARNING], defn([ERROR])) divert(0)dnl divert(LAST_QUEUE)dnl divert(-1)