[racket] Using Scribble to evalute code blocks in different runtimes

Sorry I misunderstood the question. `show-system' below is really useful! 

-- Éric


On Nov 19, 2011, at 12:09 PM, Matthew Flatt wrote:

> At Fri, 18 Nov 2011 16:19:22 -0300, Eric Tanter wrote:
>> You should require both evaluation and sandboxing:
> 
> That's right for evaluation within Racket, but I think the question was
> about calling external programs (that happen to implement other Lisp
> dialects).
> 
> Here's an example that uses `system' and `verbatim' to show output from
> `csi':
> 
> #lang scribble/base
> @(require racket/system)
> 
> @(define (show-system command [input ""])
>    (define s (open-output-string))
>    (parameterize ([current-output-port s]
>                   [current-input-port (open-input-string input)])
>      (system command))
>    (verbatim (get-output-string s)))
> 
> @show-system["csi -p '(+ 1 2)'"]
> 
> 
>> On Nov 18, 2011, at 12:56 PM, Grant Rettke wrote:
>> 
>>> Hi,
>>> 
>>> My goal is to write a document that shows examples of code running in
>>> different Scheme runtimes.
>>> 
>>> For example I want to show how a code block of Rackunit works in
>>> Racket, what it gets evaluated to; and then do the same with Chicken's
>>> test framework, and so on and so forth.
>>> 
>>> What is the easiest way to do this?
>>> 
>>> Now, I'm going to start reading the documentation for Scribble.
>>> 
>>> Best wishes,
>>> 
>>> Grant
>>> 
>>> -- 
>>> http://www.wisdomandwonder.com/
>>> ACM, AMA, COG, IEEE
> 
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