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| | |1 || LZD || [[LZW]]. A fairly generic LZW implementation, with a dynamic code size from 9 to 13 bits, and two special codes: 256=Clear, 257=Stop. | | |1 || LZD || [[LZW]]. A fairly generic LZW implementation, with a dynamic code size from 9 to 13 bits, and two special codes: 256=Clear, 257=Stop. |
| | |- | | |- |
| − | |2 || LZH || [[LZ77 with Huffman coding|LZ77+Huffman]]. Nearly identical to [[LHA]]'s "lh5" method. A small difference is that Zoo defines a way to mark the end of data. The format is pretty well documented in the comments in unzoo.c by Martin Schoenert (see below). | + | |2 || LZH || [[LZ77 with Huffman coding|LZ77 Huffman]]. Nearly identical to [[LHA]]'s "lh5" method. A small difference is that Zoo defines a way to mark the end of data. The format is pretty well documented in the comments in unzoo.c by Martin Schoenert (see below). |
| | |} | | |} |
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| | Files have bytes {{magic|DC A7 C4 FD}} at offset 20. | | Files have bytes {{magic|DC A7 C4 FD}} at offset 20. |
| | | | |
| − | Zoo files typically start with "{{magic|ZOO ?.?? Archive.}}", followed by the byte <code>0x1a</code>, where each "<code>?</code>" is a digit. Regarding this field, the source code says "The contents of the text message are however not used by Zoo and they may be anything." | + | Zoo files typically start with "{{magic|ZOO |
| − | | + | |
| − | == Related formats ==
| + | |
| − | * [[Zoo filter format]]
| + | |
| − | * [[Zoo Z format]]
| + | |
| − | * [[Brik]] - same author
| + | |
| − | | + | |
| − | == Specifications ==
| + | |
| − | ''[Ed. note: The Zoo format information in these documents is not of the highest quality. We haven't found a specification that is reasonably complete and correct.]''
| + | |
| − | | + | |
| − | * [https://www.fileformat.info/format/zoo/corion.htm The ZOO Archive File Format] from Corion.net, via FileFormat.info
| + | |
| − | * [http://apple2.org.za/gswv/a2zine/GS.WorldView/Resources/The.MacShrinkIt.Project/ARCHIVES.TXT Archive format info, including ZOO]
| + | |
| − | * [http://www.textfiles.com/programming/FORMATS/arc_fmts.txt ZOO file header format (among other archive types)]
| + | |
| − | | + | |
| − | == Software ==
| + | |
| − | * [[Konvertor]]
| + | |
| − | * Zoo - DOS binaries
| + | |
| − | ** {{CdTextfiles|megarom/megarom1/ARC_LBR/ZOO120.ZIP|v1.20}} (1986-09-06)
| + | |
| − | ** {{CdTextfiles|carousel344/013/ZOO121.ZIP|v1.21}} (1986-09-21)
| + | |
| − | ** v1.40 (1987-01-24): [https://archive.org/details/shareware-grab-bag] → Shareware_Grab_Bag_1988.zip → 014/zoo140.arc
| + | |
| − | ** v1.41: [https://archive.org/details/os2sharewarebbs OS/2 Shareware BBS Full Collection] → 08-Other.zip → S12215.ZIP → ZOO.EXE (bare executable)
| + | |
| − | ** {{CdTextfiles|rbbsv3n1/zzap/zoo200.exe|v2.00}} (~1988-02-06)
| + | |
| − | ** {{CdTextfiles|hof91/ARC/ZOO201.EXE|v2.01}} (1988-08-25) - Also includes Fiz 2.0 and Stuff 1.0
| + | |
| − | ** {{CdTextfiles|simtel/simtel20/MSDOS/ARCHIVRS/ZOO210.EXE|v2.10}} (1991-07-09)
| + | |
| − | * Other official Zoo utilities:
| + | |
| − | ** {{CdTextfiles|simtelctc/disk1/ZOO/BOOZ20.ZIP;1|Booz 2.0}} - Extractor; includes source code and DOS binary
| + | |
| − | ** {{CdTextfiles|carousel344/013/LOOZ210.ZIP|Looz 2.1}}
| + | |
| − | ** {{CdTextfiles|carousel/013B/OOZ130.ZIP|Ooz 1.30}}
| + | |
| − | ** Sez {{CdTextfiles|carousel344/013/SEZ200.ZIP|2.0}}, {{CdTextfiles|microhaus/mhblackbox3/ARCHIVER/SEZ230.ZIP|2.3}} - Makes self-extracting archives
| + | |
| − | ** {{CdTextfiles|simtelctc/disk1/ZOO/ATOZ112.ZIP;1|Atoz 1.12}} - Conversion helper
| + | |
| − | ** {{CdTextfiles|simtel/simtel9211/msdos/zoo/stuff2.zip|Stuff 2.0}}
| + | |
| − | * [https://www.amiga-stuff.com/archivers-download.html amiga-stuff.com: Archivers] - Lists several versions of Zoo for Amiga
| + | |
| − | * [http://archives.math.utk.edu/software/multi-platform/gap/util/unzoo.c unzoo.c] by Martin Schoenert (Does not support LZD.)
| + | |
| − | * [https://github.com/PascalVault/Lazarus_Unpacker Open-source library in Free Pascal]
| + | |
| − | * {{Deark}}
| + | |
| − | | + | |
| − | Original(?) source code:
| + | |
| − | * v1.41 (1987-02-07): {{CdTextfiles|hof91/PROGLC/ZOO141_C.LZH|ZOO141_C.LZH}}
| + | |
| − | * v1.51 (1987-07-12)
| + | |
| − | ** [https://archive.org/details/ASMEsMechanicalEngineeringToolkit1997December ASME's Mechanical Engineering Toolkit Dec. 1997] → C_LANG/Z150_SRC.LZH
| + | |
| − | ** As posted to Usenet comp.sources.unix 1987-08: [{{CdTextfilesURL|sourcecode/usenet/compsrcs/unix/volume11/zoo/}}]
| + | |
| − | * v2.01 (1988-08-25)
| + | |
| − | ** [http://www.nic.funet.fi/index/unix/tools/zoo/zoo-2.01.tar.gz zoo-2.01.tar.gz]
| + | |
| − | ** [https://archive.org/details/ASMEsMechanicalEngineeringToolkit1997December ASME's Mechanical Engineering Toolkit Dec. 1997] → C_LANG/{Z201SRC1.Z00 + Z201SRC2.Z00}
| + | |
| − | ** [https://archive.org/details/pegasus20 Pegasus 2.0] → pegasus/c_2/zoo_src.zip
| + | |
| − | * v2.10, a.k.a. v2.1 (1991-07-07)
| + | |
| − | ** [http://www.nic.funet.fi/index/unix/tools/zoo/zoo-2.1.tar.gz zoo-2.1.tar.gz]
| + | |
| − | ** {{CdTextfiles|aminet0294/AMINET/MISC/UNIX/ZOO_2_10.TAR|ZOO_2_10.TAR}}
| + | |
| − | | + | |
| − | Other source code and packages:
| + | |
| − | * [http://distcache.freebsd.org/ports-distfiles/zoo-2.10pl1.tar.gz zoo-2.10pl1.tar.gz]
| + | |
| − | * [http://www.ibiblio.org/pub/Linux/utils/compress/zoo-2.10-3.src.rpm zoo-2.10-3.src.rpm]
| + | |
| − | | + | |
| − | == Sample files ==
| + | |
| − | * {{CdTextfilesURL|aminet0294/AMINET/UTIL/ARC/}} → *.ZOO
| + | |
| − | * {{CdTextfilesURL|garbo/PC/}} → .../*.ZOO
| + | |
| − | * {{CdTextfilesURL|geminiatari/ZIP/PROGRAM/}} → *.ZOO
| + | |
| − | * https://telparia.com/fileFormatSamples/archive/zoo/
| + | |
| − | | + | |
| − | == Links ==
| + | |
| − | * [[Wikipedia: Zoo (file format)]]
| + | |
| − | * {{CdTextfiles|rbbsv3n1/zzap/zooplan1.zip|zooplan1.zip}} → ZOOPLAN1.TXT - A Zoo Manifesto, by Rahul Dhesi (1986-11-01)
| + | |
| − | * {{CdTextfiles|simtelctc/disk1/ZOO/UGUIDE.ZIP;1|The zoo Archiver User's Guide}}, by Bill Davidsen (for Zoo 2.01)
| + | |
| − | * [https://manpages.ubuntu.com/manpages/bionic/man1/zoo.1.html Zoo man page] - Includes a change log going back to v1.71
| + | |
| − | * {{CdTextfiles|carousel344/013/ZOO121.ZIP|Zoo 1.21}} → ZOOHSTRY.TXT - Has some historical information about older versions
| + | |
The Zoo software encompassed several different utilities, which were sometimes distributed individually, and which had their own version numbers.
