On Aug 4, 2007, at 1:58 PM, Peter P. wrote:

>> Don't suggest m4.
>
> Awk ? Perl ? ;-)

I don't doubt that you can write a preprocessor in awk or perl,
but I was hoping for something that already implemented the
"traditional" forms of ASM-style macro processors and cpp
syntax, and had dealt with the thorny issues you probably
run into trying to get them to work together:

#define S_PORT 12

#macro set_bit port, bit
#if CONSTANT(port) && CONSTANT(bit)
     sbi(port, bit);
#else
     set_bit_func(port, bit);
#endif
#endmacro

#macro counted_string var, s
#equ $s_n 0
#irpc s
#equ $s_n $s_n+1
#end // irpc to count chars
unsigned char var[$s_n+2] = { $s_n, // store count
#irpc s
's',     // store characters
#end //irpc to store chars
0};  // null terminate just in case
#endmacro

(I suppose if something like this is IMPLEMENTED in m4, that would be
fine.  I just didn't find m4 particularly nice on its own the one time
I used it...)

BillW

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