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Re: [Lzip-bug] lzip status display and use of lzlib

From: Antonio Diaz Diaz
Subject: Re: [Lzip-bug] lzip status display and use of lzlib
Date: Sat, 08 Jun 2013 18:34:34 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.7.11) Gecko/20050905

Hello Jan.

Jan Engelhardt wrote:
Could something similar be implemented in lzip and plzip?

Xz deviates too much from the user interface of similar unix-like tools (not only compressors). This already looks ugly when xz is used with zutils.

Maybe some less intrusive status display for compression could be implemented in lzip and plzip.

Also, plzip currently makes use of lzlib, but lzip(-1.14) does not. Are there plans to make lzip use the library as well?


There are some advantages in using a tailored (de)compression code in lzip. For example, having two separate implementations which produce identical compressed data makes it much more difficult for any bug to go unnoticed.

Also lzip can be used in machines with little memory because it does not use a library and can allocate the data structures after reading the file. Just try compressing a small file (a few bytes) with lzip, plzip and xz at level -9 and compare the amount of memory needed by each.

Best regards,

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