> Nicolas Alvarez wrote:
>>
>> Name some. Maybe we don't need an eval()-like function, what we need 
>> is other features so that we never ever need to use eval.
> 
> In my case I was using POV-Ray as a graphing calculator and wanted the 
> resultant image to show both the text and graphic form of the function. 
>   I wanted to only have to enter a function in SDL once, so I used a 
> string, and figured out the include-file-method as a workaround to 
> convert that string to something plot-able.  I asked on the newsgroups 
> if there was a better way... wishing.
> Charles


#declare F = function { x*2 };
#declare Ftext = f.toString(); // <-- that's probably the feature you need

Or a way to convert a string to a function; note that's still not an 
eval(), as it would be limited to only mathematical expressions.

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