// this fakes the recognition of semanticActions, good enough for a bootstrap

ometa M <: Parser {
  semanticAction     = "[" iSemanticAction(0):xs ']' -> xs.join(''),
  iSemanticAction :n = ( '[' {n++}                 -> '['
                       | ']' ?(n > 0) {n--}        -> ']'
                       | ~(']' ?(n <= 0)) anything
                       )*
}

M.matchAll("[3]", "semanticAction")
M.matchAll("[3 > 5 ifTrue: [1 to: 10 do: [:x | self inform: x]]]", "semanticAction")