Keywords

KeyWord =
     "$box" | "$channel | "$const" | "$error" | "$fail" |
     "$func" | "$func?" | "$iter" | "$l" | "$r" |
     "$string" | "$table" | "$trace | | "$traceall" |
      "$trap" | "$use" | "$vector" | "$with" |
     "#" | "&" | "," | ":" | "::" | ";" | "=" |
     "\?" | "\!".