Read/write compressed data based on the zlib library.

author

- Jan Wielemaker

See also

- http://www.zlib.net/

- http://www.swi-prolog.org/packages/zlib.html

 gzopen(+File, +Mode, -Stream) is det

 gzopen(+File, +Mode, -Stream, +Options) is det

Open a file compatible with the gzip program. Note that if a file is opened in append mode, a second gzip image will be added to the end of the file. The gzip standard defines that a file can hold multiple gzip images and inflating the file results in a concatenated stream of all inflated images.

Options are passed to open/4 and zopen/3. Default format is gzip.

 http:encoding_filter(+Encoding, +In0, -In) is semidet[multifile]

Act as plugin for library(http/http_open) for processing content with Content-encoding: gzip

Re-exported predicates

The following predicates are exported from this file while their implementation is defined in imported modules or non-module files loaded by this module.

 gzopen(+File, +Mode, -Stream) is det

 gzopen(+File, +Mode, -Stream, +Options) is det

Open a file compatible with the gzip program. Note that if a file is opened in append mode, a second gzip image will be added to the end of the file. The gzip standard defines that a file can hold multiple gzip images and inflating the file results in a concatenated stream of all inflated images.

Options are passed to open/4 and zopen/3. Default format is gzip.

Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 zopen(Arg1, Arg2, Arg3)