LZRW2

The LZRW2 algorithm is similar to the LZRW1 algorithm. However, instead of coding LZ77 offsets directly, both the coder and decoder maintain a rotating table of pointers to offset positions. This increases the compressor's memory because the offset coding space is no longer polluted with "dead" positions not represented in the hash table. The result is an increase in compression (over LZRW1) at a small cost in speed.

Original Versions

• ftp://ftp.ross.net/compression/original/old_lzrw2.c
• ftp://ftp.ross.net/compression/original/old_lzrw2.txt

New Version