7 * cc -o rexpr test.c rexpr.c
8 * Then from command line type:
10 * where r is the regular expression that decribes a language
11 * and string is the string to verify.
17 if ( argc!=3 ) fprintf(stderr,"rexpr: expr s\n");
18 else printf("%d\n", rexpr(argv[1], argv[2]));