...if macros are defined strictly as mere copy-and-paste
operations, then there will be no problem as long as the
compiler sees valid code after macro expansion. (One of
the haskell compilers indeed uses the c preprocessor to
do such things)

Warp wrote:

 >   How would it handle something like this:
 >
 > #if(Fast)
 >   box
 >     -1,1
 > #else
 >   superellipsoid
 >     <.1,1>
 > #end
 >     pigment
 >       rgb 1
 >



> I wonder how it could handle this in intendation mode:
> #macro o()object{#end
> #macro b()box{#end
> #macro f()function{#end
> #macro p()pigment{color#end
> #local C=f()pattern{o()b()1 2}}}}
> #local B=b()C(1.5,1.5,1.5)2p()1}}
> o()B}
> 
> :-)
> 
> ABX
>

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