NAME

       tcl::transform::zlib - zlib (de)compression

SYNOPSIS

       package require Tcl  8.6

       package require tcl::transform::core  ?1?

       package require tcl::transform::zlib  ?1?

       ::tcl::transform::zlib chan ?level?

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DESCRIPTION

       The  tcl::transform::zlib  package  provides  a  command creating a channel transformation
       which zlib compresses the written data, and decompresses on reading.

       The internal TclOO class  implementing  the  transform  handler  is  a  sub-class  of  the
       tcl::transform::core framework.

API

       ::tcl::transform::zlib chan ?level?
              This  command  creates  a zlib compressor transformation on top of the channel chan
              and returns its handle.

              The level specifies how much effort is put into the compression, from 0 to  9,  and
              defaults to 4.

BUGS, IDEAS, FEEDBACK

       This  document,  and  the  package  it  describes, will undoubtedly contain bugs and other
       problems.  Please  report  such  in  the  category  virtchannel  of  the  Tcllib  Trackers
       [http://core.tcl.tk/tcllib/reportlist].  Please also report any ideas for enhancements you
       may have for either package and/or documentation.

       When proposing code changes, please provide unified diffs, i.e the output of diff -u.

       Note further that attachments are strongly preferred over inlined patches. Attachments can
       be  made  by going to the Edit form of the ticket immediately after its creation, and then
       using the left-most button in the secondary navigation bar.

KEYWORDS

       channel transformation, compression, decompression, reflected channel, tip 230,  tip  234,
       transformation, virtual channel, zlib

CATEGORY

       Channels

COPYRIGHT

       Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>