I am currently making a r7rs scheme derivative that compiles to C. The lofty goal is parallel fibers.

It's in extreme early stages, and I don't expect anyone will use it other than me, but I already like it. The compiler has been self hosted for a few months now. It has a cool FFI that you can see in use in the demos folder. Working on adding header generation to the module system.

While Chicken Scheme is cool, I don't think it'll be parallel, and not in the way I want it to be, and I am willing to make a lot of compromises Chicken isn't to get there. As mentioned, I am willing to settle with fibers for parallelism, and heavily eschewing side effects, making changes from r7rs to get there. For example, there will be no dynamic-wind provided and parameter objects will have different, thread friendlier, semantics.

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My main reason for choosing C as a transpile is that it's easier to lean on gcc and C11 than it is to write my own codegen, and LLVM is too unstable for me to handle. I started writing this in June 2022, and since then LLVM has had 3 backwards compatibility breaking major release and millions of lines of code changed.

  #include <stdio.h>
  int main() {
      int c;
      printf("#include <stdio.h>\nint main() {\nchar a[30000] = {0}; char *p = a;\n");
      while((c = getc(stdin)) != EOF) {
          switch(c) {
              case '>': printf("++p;\n"); break;
              case '<': printf("--p;\n"); break;
              case '+': printf("++*p;\n"); break;
              case '-': printf("--*p;\n"); break;
              case '.': printf("putchar(*p);\n"); break;
              case ',': printf("*p = getchar();\n"); break;
              case '[': printf("while (*p) {\n"); break;
              case ']': printf("}\n"); break;
          }
      }
      printf("return 0;}\n");
      return 0;
  }

Let its syllables echo through your body

Let its phonetic oomph roll off your tongue

https://www.call-cc.org/

Source download: https://code.call-cc.org/

I'm long time fan of programming languages that compiles to C hoping that one day will fall in love with one endlessly! :-)

It has python like syntax and whole lisp subsystem as a macro preprocessor. Got bunch of builtin tools - syntax highlighting plugins etc.

Main website: https://yakshalang.github.io/

Try it online (with full x86 vm running in the browser): https://yaksha.pages.dev/

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License is GPLv3 with few additional terms

[1]: https://github.com/rjmsg/ACPL

https://sourceforge.net/projects/minforth/