/*
  IPP Phase 1: parser description
*/

%{
/* C declarations */
#include <stdio.h>
%}

/* Bison declarations */

%token NL
%token STOP
%token SEQ

%%
/* Grammar */

process: STOP NL | sequence;

sequence: SEQ NL processes;

processes:                      /* no processes at all */
         | process processes;   /* one or more processes */

%%
/* Additional C code */

main (int argc, char* argv[]) {
  return (yyparse());
}

yyerror (char* s) {
  fprintf (stderr, "%s\n", s);
}

/* End of file */