tcl::chan::cat - Concatenation channel
package require Tcl 8.5
package require TclOO
package require tcl::chan::core ?1?
package require tcl::chan::cat ?1?
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
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
The internal TclOO
class implementing the channel handler is a sub-class
of the tcl::chan::core
Event handling is delegated to the currently active sub-channel.
- ::tcl::chan::cat chan...
- This command creates the concatenation channel using all
the provided channels, and returns its handle.
This document, and the package it describes, will undoubtedly contain bugs and
other problems. Please report such in the category virtchannel
[http://core.tcl.tk/tcllib/reportlist]. Please also
report any ideas for enhancements you may have for either package and/or
concatenation channel, reflected channel, tip 219, virtual channel
Copyright (c) 2011 Andreas Kupries <email@example.com>