Re: C programs in Scheme syntax

[Andrew Gwozdziewycz <apgwoz@gmail.com>]

One might also take a look at PreScheme: https://en.wikipedia.org/wiki/Scheme_48 which is a lowlevel Sexp based system that can generate C or Bytecode. 

There’s also BitC, which was/is a sexp based lowlevel language. I cannot recall if it compiled directly to C, or was itself a compiler to machine code. 

These, both, are not direct answers to your question (which I think has a fairly straightforward answer), but might give you some alternative ideas to consider.

> On May 28, 2020, at 20:38, Keith Wright <kwright@keithdiane.us> wrote:
> 
> I am thinkging about a project that uses Scheme macros
> to generate C code.  To this end I want to encode C 
> programs as S-expressions.  For example, the C program
> that is encoded in Ascii as
> 
> for (j=0;j<12;++j) a[j] = j*pi/6;
> 
> might be encoded as an S-expression as
> 
> (for ((= j 0)(< j 12) (++ j)) (= (sub a j)(/ (* j pi) 6)))
> 
> Note that this is not a valid Scheme program, even with
> non-standard functions defined.  It is a re-encoding
> of the Ascii C syntax as an S-expression.
> 
> I think I have read about something like this, perhaps
> on this list, I am not sure.  (Note to future language
> inventors: a single letter name makes a horrible Google
> search query.  Name things with made up but pronouncable
> words---perl, fortran...)
> 
> I most need to convert S-expr encoded C, to Ascii encoded C,
> but I am interested in
> (a) programs to convert S-expresions to C
> (b) specifications for the form of the S-expr encoding
> (c) better plans; advice from those who have tried and failed.
> 
> Any pointers?
> 
>   -- Keith
> 
>