Hi Alexander,

Ha!  That last code snippet got me to where I needed to get :-) THANKS!!    

(Now when I close my eyes I see pilog - what does that mean?) 

Cheers,

Doug






--- On Wed, 6/22/11, Alexander Burger <a...@software-lab.de> wrote:

> From: Alexander Burger <a...@software-lab.de>
> Subject: Re: embedding minipicolisp
> To: picolisp@software-lab.de
> Date: Wednesday, June 22, 2011, 12:28 AM
> Hi Doug,
> 
> > I can then doPrint() on what doRead() returns -
> although I don't see
> > the customary parentheses around the list I hand that
> to doEval().
> 
> Calling the high-level Lisp function 'doEval' is not a good
> idea,
> because it first evaluates its arguments, which is not what
> is needed
> here.
> 
> The same is the case for 'doRead', but it doesn't do much
> harm if you
> just pass it NIL (i.e. no arguments). And also for
> 'doPrint': If you
> pass it something other than a number, if will print not
> that item but
> its value. Better just call 'print()' for debugging.
> 
> So instead of calling 'doEval', you could do
> 
>    any res;
>    cell c1;
> 
>    Push(c1, doRead(Nil));
>    x = EVAL(data(c1));
>    drop(c1);
>    return x;
> 
> 
> > doEval() returns a value (an "any" pointer, which when
> cast to a long is 6 which seems odd). 
> 
> '6' is a valid 'any', the number '1':
> 
>          num   
>   xxxxxx10
>           2   
>    00000110
> 
> Cheers,
> - Alex
> -- 
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