NAME

       tcl::chan::cat - Concatenation channel

SYNOPSIS

       package require Tcl  8.5

       package require TclOO

       package require tcl::chan::core  ?1?

       package require tcl::chan::cat  ?1.0.3?

       ::tcl::chan::cat chan...

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DESCRIPTION

       The  tcl::chan::cat  package  provides  a command creating concatenation channels. These are non-seekable
       channels owning a list of subordinate channels whose  contents  they  return  in  order,  until  all  are
       exhausted.  In  this  manner  the  channel  is the concatentation of the contents of all the sub-ordinate
       channels.

       Note that the created channels take ownership of the channels they were constructed with.  Whenever  they
       have  exhausted one of their channel it will be closed. Similarly, closing the cat channel will close all
       the sub-ordinates it still has.

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

       Event handling is delegated to the currently active sub-channel.

API

       ::tcl::chan::cat chan...
              This  command  creates  the concatenation channel using all the provided channels, and returns its
              handle.

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

       concatenation channel, reflected channel, tip 219, virtual channel

CATEGORY

       Channels

COPYRIGHT

       Copyright (c) 2011 Andreas Kupries <andreas_kupries@users.sourceforge.net>