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- This files describes the implementation of the Atari ST version of Zoo 2.1.
- Please read ZOO.MAN and then read this file.
-
- GENERAL
- -------
- ST Zoo 2.1 is completely backward compatible with the port of Zoo 2.01 I did.
- In 2.01 we had optimized the compression and decompression functions for speed.
- In 2.1 we did not optimize the old-style compression/decompression functions in
- lieu of the more efficient "high compression" functions. Therefore, 2.1 may
- not be as fast as 2.01 in extracting old format archives. I stress that 2.1 is
- 100% backwards compatible with 2.01, just not as fast when dealing with old
- format archives. We will be concentrating on optimizing the speed of the new
- compression/decompression functions in future versions.
-
- ST Zoo requires 400K+ available free memory when using the high compression
- option. Very tight on a 512K machine.
-
- ST Zoo accepts both slashes and backslashes as directory separators.
-
- ST Zoo preserves the attributes of archived files. So if you archive a
- Read-Only file, it will be extracted as a Read-Only file. PLEASE NOTE: Not
- all attributes of an Atari file are preserved, as these are not transportable
- across systems. ex. the archive bit.
-
- ST Zoo doesn't allow Zoo to be used as a filter.
-
- NEW OPTIONS
- -----------
- // - This option will recursively decend all the directories in the specified
- path when used in conjunction with the 'a' command. NOTE: This is Atari
- specific and will change if/when R. Dhesi adds this option internally to
- Zoo. This does not affect the ability of Zoo on other platforms to
- extract these archives.
-
- NOVICE COMMANDS
- ---------------
- -add
- -freshen
- -update
- -move - All default to the high compression mode.
-
- -backup - This is the same as the expert command 'ah//'. It will recursively
- descend all directories in the path during an add.
-
- -restore - This is the same as the expert command 'x//'. It will extract files
- from the archive using full pathnames, if present.
-
- WILDCARD HANDLING FROM THE DESKTOP
- ----------------------------------
- The wildcard expansion routines used in the ST version of Zoo understand the
- following elements:
- * or *.* - Any sequence of zero or more characters.
- ? - Any single character.
- [x...y] - Any single character specified by the set x...y, where any
- character other than minus sign or close bracket may appear
- in the set. A minus sign may be used to indicate a range of
- characters. ex. [0-5abc] is shorthand for [012345abc]. More
- than one range may appear inside a character set. ex.
- [0-9a-zA-Z._] matches almost all of the legal characters for
- a host name.
- [^ x...y] - Any character NOT in the set, which is interpreted as
- described above.
- \*, \?, \[ - A *, ? or [ character. ex. If you named a file '*' and you
- want it added to a Zoo archive, you would use the following
- command line: 'zoo ah foo.zoo \*'. Try to avoid doing this.
- See wildmat.man and README.WM for more details.
-
- UNIXMODE
- --------
- The released binary of Zoo does not fully support UNIXMODE. The only
- option of UNIXMODE not supported is mixed case. This can be changed by
- undefining FOLD in options.h and recompiling Zoo. See the TOS section of
- options.h for more details. Undefining FOLD will NOT cause any compatibility
- problems with produced archives. If you are unable to recompile Zoo and
- want the UNIXMODE version, contact me at one of the email addresses below.
-
- ZOOPAUSE
- --------
- If you launch ST Zoo from the desktop, it will wait for a keypress when it is
- done with it's current operation. If ST Zoo is launched from a recognized CLI
- (currently Gulam, Master 5.0 & 5.4, Craft) or if the environment variable SHELL
- is set, ST Zoo will NOT wait for a keypress. You may also set the environment
- variable ZOOPAUSE to either "yes" or "no", depending on whether you want ST Zoo
- to wait or not.
-
- ACKNOWLEDGMENTS
- ---------------
-
- This port of Zoo was done using GCC V1.40 and the excellent libraries
- distributed with it. Thanks to Jwahar Bammi and Eric Smith for all of the
- time and labor they put into this compiler package.
-
- Thanks to Jwahar Bammi for all the time/code/ideas he donated to this project.
-
- Thanks to Rahul Dhesi for developing Zoo and making it freely available to
- all users, on all platforms.
-
- Thanks to Rich Salz for releasing his wildmat code to the public. It saved us
- alot of headaches developing our own from scratch.
-
- Thanks to Dan Jitta for his port of Zoo 2.01 to the ST. We used several of his
- ideas in this port.
-
-
- Please send all comments, suggestions, and bug reports to:
-
- Bill Shroka
- bjsjr@NCoast.ORG
- ncoast!bjsjr@usenet.ins.cwru.edu
- uunet!usenet.ins.cwru.edu!ncoast!bjsjr
- GEnie: B.SHROKA
-
-