Squeak scripting syntax (was: Re: how to get arg and print on the output)

Andreas Raab andreas.raab at gmx.de
Mon Aug 21 13:56:33 UTC 2006


Couple of years back I used something quite similar to Ian's version - 
the main difference was that instead of prototypes it used classes so it 
would look like this:

Object subclass: #Point definition: #[
     | x y |
     magnitude [
         ^((x * x) + (y * y)) sqrt
     ]
]

(I still have an ~400k image based on this stuff ;-) The trick in the 
above is that I redefined #[] to mean a "token array" that would be 
processed as part of the #subclass:definition: message so it retained 
the expression nature of class definitions. It's kind of cool but also 
overkill - these days I'd go straight for human readable syntax instead 
of fancy parser tricks ;-)

Cheers,
   - Andreas


Bert Freudenberg wrote:
> florent trolat schrieb:
>> stéphane ducasse a écrit :
>>>>
>>>> Right - so this really only applies to headless command line use. So 
>>>> why not create a special squeak shell for them?
>>>>
>>>> You could create a stripped image with OSProcess preloaded, write a 
>>>> small shell script or launcher program (say, "squeash") that runs a 
>>>> headless VM with the image, et voilà, Squeak for scripting.
>>>
>>> Exact! And with a syntax for writing method and class without !! and !
>>> I will give a try at that.
>>
>> (hi,) an example of syntax?
> 
> I like Ian's:
> 
>     http://piumarta.com/pepsi/pepsi.html
> 
> There are others, like
> 
>     http://www.double.co.nz/smallscript/byexample.htm
> 
> - Bert -
> 
> 
> 




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