compress.zlib

The module compress.zlib of lua-compress provides deflate compression
and decompression with zlib for Lua strings and carray objects: the
formats zlib (RFC 1950), gzip (RFC 1952) and raw deflate (RFC 1951),
in one call or as a stream, with all parameters of deflateInit2(),
dictionaries, flush modes, zlib's status codes and crc32/adler32.
Carrays are read without copying and can receive the output directly.