Also have a look at https://github.com/sph-mn/sph-sc
Examples: ;; declaration (declare a uint32_t b (array uint8_t 3) c (struct (id int) (name char*)) d (enum (x y z)) e (type uint16_t) f (type (struct (id int) (name char*)))) ;; define with value (define a uint32_t 1) ;; macros (pre-define is-included #t id-size 4 (mymacro a b) (set a 1 b 2)) ;; functions (define (myfunction a b) (int char void) "a description of this function" (return 1)) I found it when the author did the full round-trip over wisp via c-indent: http://sph.mn/computer/guides/c/c-indent.html This then looks much more similar to C; but fully regular: pre-include "stdio.h" define (main argc argv) : int int char** declare i int printf "the number of program arguments passed is %d\n" argc for : (set i 0) (< i argc) (set+ i 1) printf "argument %d is %s\n" (+ i 1) (array-get argv i) return 0 Best wishes, Arne John Cowan <co...@ccil.org> writes: > Check out the Chibi library (chibi show c). in the Chibi repo at > lib/chibi/show/c.scm and .sld. It provides combinators that create a C > equivalent of the sexp; there is both a macro-based compiler and an > interpreter, IIRC. Unfortunately there is no real documentation. There's > some cleverness in it: c-if in statement context expands to an > if-statement, but in an expression context to a ?: operator. If you import > (chibi show) and (chibi show c) then (show #t (c-if 'foo 'bar 'baz)) will > generate a statement, but (show #t (c+ 2 (c-if 'foo 'bar 'baz))) will > generate an expression. > > > On Thu, May 28, 2020 at 11:38 PM Keith Wright <kwri...@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 >> >> >> -- Unpolitisch sein heißt politisch sein ohne es zu merken
