Re: [Chicken-users] json-abnf fails to parse booleans

[Vok Vojwo]

2011/11/28 Ivan Raikov <address@hidden>:
>
> - due to a limitation in abnf/lexgen-derived parsers, #f cannot be a
>  value returned by a parser. So the JSON true and false values are
>  represented by '(#t) and '(#f).
>

Can you explain this? I tried my patch with some booleans and it seems to work:

(pp (parse-json
"{\"pi\":3.14,\"f\":false,\"t\":true,\"n\":null,\"l\":[1,2],\"s\":\"\"}"))
;; => (("pi" . 3.14) ("f" . #f) ("t" . #t) ("n" . null) ("l" . #(1 2))
("s" . ""))

(pp (parse-json "[true]"))
;; => #(#t)