-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Timothy,
On 30-11-11 15:14, Timothy Nelson wrote: > Hi Marijn, > > Two quick points: > > (1) The parser works with token structs, not symbols. Whenever you > declare a token, a cooresponding "token-<name>" form is made > available to you when using lexer. Actually the parser will accept symbols instead of tokens, but you won't be able to store any data IN the token/symbol. > (2) Parsers expect a nullary function that invokes the lexer on a > port, so you need a small modification: > > (define (main port) (write (turn0-parser (lambda () (turn0-lexer > port))))) > > If you instead write > > (define (main port) (write (turn0-parser (turn0-lexer port)))) > > the parser is passed the first token itself, not a thunk it can > call to get successive tokens, which is what it wants. Thanks, that was real useful! After fixing this I was able to figure out the rest of the problems. Marijn -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk7WTWsACgkQp/VmCx0OL2yBeQCgt4mVFFNT3zy96jFENYFWw83l EtEAmwQ3p+9WK90GMMx8vtq+ltrM9oyA =bkLd -----END PGP SIGNATURE----- _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users