tcl::transform::observe - Observer transformation, stream copy

::tcl::transform::observechanlogwlogr
              This command creates an observer transformation on top of the channel chan and returns its handle.
              The channel handles logr and logw are there the data is copied to.

       This document, and the package it describes, will undoubtedly contain bugs and  other  problems.   Please
       report  such  in  the category virtchannel of the TcllibTrackers [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 unifieddiffs, 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.

       Channels

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

tcllib                                                 1.1                         tcl::transform::observe(3tcl)

       The  tcl::transform::observer  package  provides a command creating a channel transformation which passes
       the read and written bytes through unchanged (like tcl::transform::identity), but additionally copies the
       data it has seen for each direction into channels specified at construction time.

       Related  transformations   in   this   module   are   tcl::transform::adler32,   tcl::transform::counter,
       tcl::transform::crc32, and tcl::transform::identity.

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

       channel transformation, observer, reflected  channel,  stream  copy,  tip  230,  transformation,  virtual
       channel

       tcl::transform::observe - Observer transformation, stream copy

       package require Tcl8.69

       package require tcl::transform::core?1.1?

       package require tcl::transform::observe?1.1?::tcl::transform::observechanlogwlogr

________________________________________________________________________________________________________________