return checkIff(); } else if (b1 == 0x59 && b2 == 0xa6) { return checkRas(); } else if (b1 == 0x50 && b2 >= 0x31 && b2 <= 0x36) { return checkPnm(b2 - '0');
return checkIff(); } else if (b1 == 0x59 && b2 == 0xa6) { return checkRas(); } else if (b1 == 0x50 && b2 >= 0x31 && b2 <= 0x36) { return checkPnm(b2 - '0');