497 static void writeString(const char *s)  in writeString()  function
590   writeString("\\O[4]\\O[2]");  in write_end_image()
592     writeString("\\O[1]");  in write_end_image()
594     writeString("\\O[0]");  in write_end_image()
607   writeString("\\O[5");  in write_start_image()
610     writeString("i");  in write_start_image()
613     writeString("l");  in write_start_image()
616     writeString("r");  in write_start_image()
620     writeString("c");  in write_start_image()
623   writeString(image_template);  in write_start_image()
624   writeString(".png]");  in write_start_image()
626     writeString("\\O[0]\\O[3]");  in write_start_image()
629     writeString("\\O[1]\\O[3]");  in write_start_image()