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- This Theos port supports all the unusual features of Theos filesystem.
- Under Theos filesystem files are typed. Types include :
- - stream
- - relative
- - keyed
- - indexed (ISAM)
- - program (86 real mode, 16 bits protected mode, 32 bits protected mode)
- - directory
- - library (contains files of any other types librry and directory excepted).
- Most of the information on the type and on the structure of a file are not
- contained in the file itself but its in directory entry. For all types of
- files, directory and stream files excepted, this information is vital. If it
- is lost, the file can no longer be usable.
- In zip files the information is stored in an extra block with type "Th".
- A few years ago I ported ZIP for internal use and spreaded it a little around
- me. It was using a non portable extra block structure. Its type was "TH".
- For backward compatibility it is supported by UNZIP 5.4.0 port to Theos.
- ZIP archives created with ZIP 2.3 port MUST be unzipped with 5.4.0 or a later
- version.
- Also disk search sequence is supported. The disk name is not stored into
- the zip archive.
- Thanks to Bob Baker from Stockboy Services who spent his time to check this
- port under other conditions than mines.
- Jean-Michel Dubois
- IBC France / THEOS France
- jmdubois@ibcfrance.fr
- jean-michel-dubois@wanadoo.fr
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