Example "compiler", part 2 of 2

# compiler object (HLL::Compiler is base class for compilers)
class ABC::Compiler is HLL::Compiler {
    ABC::Compiler.language('abc');
    ABC::Compiler.parsegrammar(ABC::Grammar);
    ABC::Compiler.parseactions(ABC::Actions);
}

# invoke the compiler 
my @ARGS := (pir::getinterp__p)[2];     # args from Parrot
ABC::Compiler.command_line(@ARGS);

Run the program:

$ ./nqp Abc.pm
> 3+4
7
> 87-100
-13