// language mash-ups are very useful; here's an example from the OMeta/JS implementatio Parse error -> Parse error -> Parse error ->n

ometa OMetaJSParser <: BSJSParser  Parse error Parse error -> ->{
  srcElem = spaces foreign(BSOMetaParser, `grammar):r sc -> r
          | super(`srcElem)
}

ometa OMetaJSTranslator <: BSJSTranslator {
  Grammar = foreign(BSOMetaTranslator, `Grammar)
}