Zlib
Compression and decompression with zlib.
To use the bindings from this module:
(import :std/text/zlib)
compress
(compress data [level = 6]) -> u8vector | string | port | error
data := u8vector, string or input-port
level := optional integer value, from 0 to 9
Compresses given data using zlib. The return value varies by given data's type. If given u8vector the return value is newly allocated u8vector with contents of data compressed. Signals a error on wrong type of data.
The optional level parameter sets the compression level used. Value of 1 gives best speed, 9 gives best compression, 0 gives no compression at all (the input data is simply copied a block at a time).
compress-gz
(compress-gz data [level = 6]) -> u8vector | string | input-port | error
data := u8vector, string, or input-port
level := optional integer value, from 0 to 9
Compresses data given in data as compress
procedure but in addition gzip
encodes it. Signals a error on wrong type of data.
uncompress
(uncompress data) -> u8vector | error
data := u8vector or input-port
Returns uncompressed bytes from data. Signals a error on wrong type of data.