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ASSET OVERVIEW

UNIT NAME

UNZIP written in Ada95

VERSION

Sep 1999

REVIEW CODE

NR

INET ADDRESS

Gautier.deMontmollin@maths.unine.ch

AUTHOR

Gautier de Montmollin

RIGHTS

Approved for public release; distribution unlimited

COPYRIGHT

1999 Gautier de Montmollin

DATE CREATED

July 1999

DATE RELEASED

July 1999

DATE LAST UPDATED

September 1999

LOCATION

ASE

ENVIRONMENT

GNAT 3.1x

LIMITATIONS

None

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CLASSIFICATION

KEYWORD

UNZIP in Ada95
ZIP in Ada95

INDEX

de Montmollin, Gautier
Gautier

DEPENDENCIES

GNAT 3.1x

SEE ALSO

SHORT DESCRIPTION

An UNZIP program (compatable with PKUNZIP) written in Ada95

TAXONOMY

Software Development Tools

UNZIP in Ada95

Miscellaneous Tools

UNZIP in Ada95

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FILE LISTING

FILE SPECS

Click here to enter Asset Directory/transfer Asset File(s): ../../ase02_02/tools/unzipada

DIRECTORY DISPLAY

Follow path to see directory

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ABSTRACT

UNZIP in Ada95

by Gautier de Montmollin

What is it ? UnZip-Ada is a decompression library for zipped files, i.e. files compressed by PKZIP (PKWARE Inc.) or a compatible file compressor. The full source is in Ada - pure Ada, not even a single OS-dependent or compiler-dependent package. Its "historical" origin is the C Info-Zip source, then a Pascal version. For details, read the file unzip.ads from the submission.

Why not just interface with C unzip code ? The idea is to have a pure Ada unzipping kernel, platform independent; no near-portable code with conditional defines. In addition it's very fun to code it in Ada. E.g. the generics allowed to half the original code in the Explode method. Exception handling is omnipresent and save lots of code: plenty of result variables in C / Pascal are saved, so, when a normal, non-corrupt archive is handled, the execution is much more straightforward.

Why not just call unzip / pkunzip ? This tool allows you to unzip data without resorting to making an OS-dependent external call.

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REVISION HISTORY

September 1999 Gautier de Montmollin  Initial Release to the ASE Library

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RELEASE NOTICE

This prologue must be included in all copies of this software.
Restrictions on use or distribution:  NONE

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DISCLAIMER

	This software and its documentation are provided "AS IS" and
without any expressed or implied warranties whatsoever.  No warranties
as to performance, merchantability, or fitness for a particular
purpose exist.
	The user is advised to test the software thoroughly before
relying on it.  The user must assume the entire risk and liability of
using this software.  In no event shall any person or organization of
people be held responsible for any direct, indirect, consequential or
inconsequential damages or lost profits.

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