[plt-scheme] I don't understand this error message

Gregory Woodhouse wrote:

> ;Get a variable (use failure thunk to recursively check enclosing  
> environment)
> (define (get-symbol symbol env)
>   (hash-table-get (car env) symbol
>                   (lambda () (if (list? env)
>                                  (get-symbol (cdr env) symbol)))))

The recursive call should be (get-symbol symbol (cdr env)) .

-- 
Jens Axel Søgaard