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   TEAMOS2      OS/2 User Groups and Promotion      1,696 messages   

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   Message 30 of 1,696   
   VOICE News Service to All   
   [VOICENWS] SW: Lzip v1.11   
   25 Sep 10 16:57:54   
   
   Sep 2010 18:11:18 -0400   
   ,    
   ++ From the VOICE OS/2-eCS News Service   http://www.os2voice.org ++    
      
   From: elbert.polDESPAM@DESPAMgmail.com   
      
   Lzip is a lossless data compressor based on the LZMA algorithm, with very safe   
   integrity checking and a user interface similar to the one of gzip or bzip2.   
   Lzip decompresses almost as fast as gzip and compresses better than bzip2,   
   which makes it well suited for software distribution and data archiving.     
      
   Lziprecover is a data recovery tool for lzip compressed files able to repair   
   slightly damaged files, recover badly damaged files from two or more copies,   
   and extract undamaged members from multi-member files.     
      
   2010-09-16  Antonio Diaz Diaz       
      
       
      
    * Version 1.11 released.     
      
    * Added new option `-0' which produces a compression speed and ratio   
   comparable to those of `gzip -9'.     
      
    * fast_encoder.h fast_encoder.cc: New files.     
      
    * main.cc: Match length limit set by options -1 to -8 has been reduced to   
   extend range of use towards gzip. Lower numbers now compress less but faster.   
   (-1 now takes 43% less time for only 20% larger compressed size).     
      
    * encoder.cc: Compression of option -9 has been slightly increased.     
      
    * lziprecover.cc: Added new option "--merge" which tries to produce a correct   
   file merging the good parts of two or more damaged copies.     
      
    * lziprecover.cc: Added new option "--repair" for repairing a 1-byte error in   
   single-member files.     
      
    * decoder.cc (decode_member): Detect file errors earlier to improve   
   efficiency of lziprecover's new repair capability.     
      
      This change also prevents (harmless) access to uninitialized memory when   
   decompressing a corrupt file.     
      
    * lziprecover.cc: Added new option "--force".     
      
    * lziprecover.cc: Added new option "--output".     
      
    * lziprecover.cc: Added new option "--split" to select the until now only   
   operation of splitting multimember files.     
      
    * lziprecover.cc: If no operation is specified, warn the user and do   
   nothing.     
      
    * main.cc: Fixed warning about fchown's return value being ignored.     
      
    * decoder.cc: "-tvvvv" now also shows compression ratio.     
      
    * main.cc: Set stdin/stdout in binary mode on MSVC and OS2.     
      
    * New examples have been added to the manual.     
      
    * testsuite: "test1" renamed to "test.txt"   
      
    * Matchfinder types HC4 (4 bytes hash-chain) and HT4 (4 bytes hash-table)   
   have been tested and found no better than the current BT4.   
      
   Links:   
      
   * http://hobbes.nmsu.edu/download/pub/incoming/Lzip-v1.11-os2.zip   
   --   
      
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