commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Stefan Bodewig (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (COMPRESS-115) Imploded entry decompression for Zip archives (method 6)
Date Sat, 13 Apr 2013 16:56:16 GMT

     [ https://issues.apache.org/jira/browse/COMPRESS-115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stefan Bodewig updated COMPRESS-115:
------------------------------------

    Labels: zip  (was: )
    
> Imploded entry decompression for Zip archives (method 6)
> --------------------------------------------------------
>
>                 Key: COMPRESS-115
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-115
>             Project: Commons Compress
>          Issue Type: New Feature
>          Components: Archivers
>    Affects Versions: 1.0
>            Reporter: Emmanuel Bourg
>              Labels: zip
>         Attachments: imploding-4Kdict-2trees.zip, imploding-8Kdict-3trees.zip
>
>
> This is a RFE to implement the decompression of zip file entries using the imploded compression
method (aka method 6). This method is found in archives created with old versions of PKZip.
Only the decompression operation is really useful since this method is less efficient than
deflate.
> Some links with technical information about this format:
> http://www.pkware.com/documents/casestudies/APPNOTE.TXT
> http://en.wikipedia.org/wiki/Shannon%E2%80%93Fano_coding
> http://en.wikipedia.org/wiki/LZ77
> http://src.opensolaris.org/source/xref/sfw/usr/src/cmd/unzip/explode.c

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message