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@@ -1,18 +1,18 @@ Description Clzip is a lossless data compressor with a user interface similar to the -one of gzip or bzip2. Clzip decompresses almost as fast as gzip, -compresses most files more than bzip2, and is better than both from a -data recovery perspective. Clzip is a clean implementation of the LZMA -"algorithm". +one of gzip or bzip2. Clzip is about as fast as gzip, compresses most +files more than bzip2, and is better than both from a data recovery +perspective. Clzip is a clean implementation of the LZMA "algorithm". Clzip uses the lzip file format; the files produced by clzip are fully compatible with lzip-1.4 or newer, and can be rescued with lziprecover. Clzip is in fact a C language version of lzip, intended for embedded devices or systems lacking a C++ compiler. -The lzip file format is designed for long-term data archiving, taking -into account both data integrity and decoder availability: +The lzip file format is designed for data sharing and long-term +archiving, taking into account both data integrity and decoder +availability: * The lzip format provides very safe integrity checking and some data recovery means. The lziprecover program can repair bit-flip errors @@ -27,8 +27,8 @@ into account both data integrity and decoder availability: extract the data from a lzip file long after quantum computers eventually render LZMA obsolete. - * Additionally lzip is copylefted, which guarantees that it will - remain free forever. + * Additionally the lzip reference implementation is copylefted, which + guarantees that it will remain free forever. A nice feature of the lzip format is that a corrupt byte is easier to repair the nearer it is from the beginning of the file. Therefore, with @@ -91,9 +91,8 @@ elaborated way of finding coding sequences of minimum price than the one currently used by lzip could be developed, and the resulting sequence could also be coded using the LZMA coding scheme. -Lzip currently implements two variants of the LZMA algorithm; fast (used -by option -0) and normal (used by all other compression levels). Clzip -just implements the "normal" variant. +Clzip currently implements two variants of the LZMA algorithm; fast +(used by option -0) and normal (used by all other compression levels). The high compression of LZMA comes from combining two basic, well-proven compression ideas: sliding dictionaries (LZ77/78) and markov models (the @@ -108,7 +107,7 @@ range encoding), Igor Pavlov (for putting all the above together in LZMA), and Julian Seward (for bzip2's CLI). -Copyright (C) 2010-2014 Antonio Diaz Diaz. +Copyright (C) 2010-2015 Antonio Diaz Diaz. This file is free documentation: you have unlimited permission to copy, distribute and modify it. |