[plt-scheme] Re: plt-scheme Digest, Vol 9, Issue 14

If they are in separate files, you need to use file syntax in the 
require statement : "platonic-letter.ss". -- Matthias


On May 11, 2006, at 6:14 PM, geb a wrote:

> Ok,
> I am getting an error:
> require: unknown module: platonic-letter
>
> The files are exactly as you typed and in the same
> directory.  I ran the program in module.
>
> Am I missing something?
>
> Dan
>
> --- Matthias Felleisen <matthias at ccs.neu.edu> wrote:
>
>> 1. You must require the module.
>> 2. You must export the structure definition.
>>
>> (module platonic-letter mzscheme
>>    (define-struct letter(instance))
>>    (define letters
>>        (map make-letter '(a b c d e f g)))
>>    (provide (struct letter (instance)) letters)
>> )
>>
>>
>> (module slip mzscheme
>>    (require platonic-letter)
>>    (provide (all-from platonic-letter))
>>    (map letter-instance letters))
>>
>> -- Matthias
>>
>>
>> On May 11, 2006, at 5:50 PM, geb a wrote:
>>
>>> Hello...
>>>
>>> Can someone tell me why I can't use structure
>>> accessors for letters in module slip?
>>>
>>> Thank you for your time.
>>>
>>> Sincerely,
>>>
>>> Dan
>>>
>>> (module platonic-letter mzscheme
>>>   (define-struct letter(instance))
>>>   (define letters
>>>       (map make-letter '(a b c d e f g)))
>>>   (provide letter letters)
>>> )
>>>
>>>
>>> (module slip mzscheme
>>>   (provide (all-from "platonic-letter.ss"))
>>>   (map letter-instance letters))
>>>
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