Hi, Pharo LZ4 Tools (https://github.com/svenvc/pharo-lz4-tools) is an implementation of LZ4 compression and decompression in pure Pharo.
LZ4 is a lossless compression algorithm that is focused on speed. It belongs to the LZ77 family of byte-oriented compression schemes. - https://en.wikipedia.org/wiki/LZ4_(compression_algorithm) - https://lz4.github.io/lz4/ - https://github.com/lz4/lz4 Both the frame format (https://github.com/lz4/lz4/blob/dev/doc/lz4_Frame_format.md) as well as the block format (https://github.com/lz4/lz4/blob/dev/doc/lz4_Block_format.md) are implemented. Dictionary based compression/decompression is available too. The XXHash32 algorithm is also implemented. Of course this implementation is not as fast as highly optimised native implementations, but it works quite well and is readable/understandable, if you like this kind of stuff. It can be useful to interact with other systems using LZ4. Sven
