to demonstrate how awesome ruby is, here is a c version

#include <stdio>
#include <memory>
char inp[] = {
"100011001001101010010001100010111"
"000110110010110100100111001001110"
"010110100100001001000111011000100"
 -- snip -- 
"100001000101010001011110111111000"
"101110010111100101101000110000000\n"
};

int main(void)
{
  char out[1024];
  char * pos = out;
  char * inpos = inp;
  int bits = 0;

  char currentc = 0; 
  
  memset(out, 0, sizeof(char) * 1024);
  
  while(*inpos)
  { 
    if(*inpos == '0' || *inpos == '1')
    {
      if(!(bits++ % 8)) { *pos++ = 0xFF^currentc; currentc = 0; }      
      currentc = (currentc << 1) + (*inpos=='1'?1:0);
    }
    inpos++;
  }
  
  printf("%s\n", out);  
}