odecIdSize 4: Is Complex Coder 5: There Are Attributes 6: Reserved 7: There are more alternative methods. (Not used anymore, must be 0). } BYTE CodecId[CodecIdSize] if (Is Complex Coder) { UINT64 NumInStreams; UINT64 NumOutStreams; } if (There Are Attributes) { UINT64 PropertiesSize BYTE Properties[PropertiesSize] } } NumBindPairs = NumOutStreamsTotal - 1; for (NumBindPairs) { UINT64 InIndex; UINT64 OutIndex; } NumPackedStreams = NumInStreamsTotal - NumBindPairs; if (NumPackedStreams > 1) for(NumPackedStreams) { UINT64 Index; }; Coders Info ~~~~~~~~~~~ BYTE NID::kUnPackInfo (0x07) BYTE NID::kFolder (0x0B) UINT64 NumFolders BYTE External switch(External) { case 0: Folders[NumFolders] case 1: UINT64 DataStreamIndex } BYTE ID::kCodersUnPackSize (0x0C) for(Folders) for(Folder.NumOutStreams) UINT64 UnPackSize; [] BYTE NID::kCRC (0x0A) UnPackDigests[NumFolders] [] BYTE NID::kEnd SubStreams Info ~~~~~~~~~~~~~~ BYTE NID::kSubStreamsInfo; (0x08) [] BYTE NID::kNumUnPackStream; (0x0D) UINT64 NumUnPackStreamsInFolders[NumFolders]; [] [] BYTE NID::kSize (0x09) UINT64 UnPackSizes[] [] [] BYTE NID::kCRC (0x0A) Digests[Number of streams with unknown CRC] [] BYTE NID::kEnd Streams Info ~~~~~~~~~~~~ [] PackInfo [] [] CodersInfo [] [] SubStreamsInfo [] BYTE NID::kEnd FilesInfo ~~~~~~~~~ BYTE NID::kFilesInfo; (0x05) UINT64 NumFiles for (;;) { BYTE PropertyType; if (aType == 0) break; UINT64 Size; switch(PropertyType) { kEmptyStream: (0x0E) for(NumFiles) BIT IsEmptyStream kEmptyFile: (0x0F) for(EmptyStreams) BIT IsEmptyFile kAnti: (0x10) for(EmptyStreams) BIT IsAntiFile case kCTime: (0x12) case kATime: (0x13) case kMTime: (0x14) BYTE AllAreDefined if (AllAreDefined == 0) { for(NumFiles) BIT TimeDefined } BYTE External; if(External != 0) UINT64 DataIndex [] for(Definded Items) UINT64 Time [] kNames: (0x11) BYTE External; if(External != 0) UINT64 DataIndex [] for(Files) { wchar_t Names[NameSize]; wchar_t 0; } [] kAttributes: (0x15) BYTE AllAreDefined if (AllAreDefined == 0) { for(NumFiles) BIT AttributesAreDefined } BYTE External; if(External != 0) UINT64 DataIndex [] for(Definded Attributes) UINT32 Attributes [] } } Header ~~~~~~ BYTE NID::kHeader (0x01) [] ArchiveProperties [] [] BYTE NID::kAdditionalStreamsInfo; (0x03) StreamsInfo [] [] BYTE NID::kMainStreamsInfo; (0x04) StreamsInfo [] [] FilesInfo [] BYTE NID::kEnd HeaderInfo ~~~~~~~~~~ [] BYTE NID::kEncodedHeader; (0x17) StreamsInfo for Encoded Header [] --- End of document sample foo text    fό?В+7zFormat.txtfoo.txt^:U;P{