module demo;

​

//i am just declaring these to have them.

size_t stdout_index;

enum STDOUT_BUF_LEN = 42;

char[] stdout_buffer;

alias i32 = int;

void sys_write(int i, void* p, int index) {}

//

​

​

enum add_char(char c) =

​

  `if (stdout_index < STDOUT_BUF_LEN) {

    stdout_buffer[stdout_index++] ='` ~ c ~ `';

    continue;

  } else {

    sys_write(1, stdout_buffer.ptr, cast(i32)stdout_index);

    stdout_index = 0;

    stdout_buffer[stdout_index++] ='` ~ c ~ `';

    continue;

  }`;

​

void main() 

{    

    while (true) {

        mixin(add_char!'%');  

        mixin(add_char!'$');        

    }

​

​

}