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https://issues.apache.org/jira/browse/COMPRESS-115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Bourg resolved COMPRESS-115.
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Resolution: Fixed
Fix Version/s: 1.7
> 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
> Assignee: Emmanuel Bourg
> Labels: zip
> Fix For: 1.7
>
> Attachments: explode.c, 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
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