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Diffstat (limited to 'theos/README')
| -rw-r--r-- | theos/README | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/theos/README b/theos/README new file mode 100644 index 0000000..1ec99d3 --- /dev/null +++ b/theos/README @@ -0,0 +1,34 @@ +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 |