TclX (http://tclx.sf.net/) is an essential package of extensions for Tcl.  
This package creates interpreters known as tcl.  It adds:
   * advanced code loading facility,
   * new programming constructs,
   * debugging and profiling facilities,
   * unix access commands,
   * file I/O facilities including awk-like scanning for strings,
   * extended list and a new key list capability,
   * extended character and string manipulation commands, and
   * time and date manipulation commands.

Extended Tcl is oriented towards system programming tasks and large application development.  
It provides a variety of additional interfaces to the underlying operating system, as well as many new programming constructs, text manipulation tools, and debugging capabilities.

Over the years, a variety of features originally appeared in TclX, and then, as the ideas were proven, migrated to the Tcl core.  These features include Tcl's I/O system, its associative [array]s, Internet
networking interfaces, [upvar], memory debugging... even [incr].

TclX includes documentation on debugging memory problems 
on how to use its '''[keyed list]''' data type, manipulating binary structures via handles,
a guide to writing Tcl commands in C , and a reference manual for the new TclX commands themselves.

(Give an alternate description of TclX as Tcl augmented with POSIX stuff, such as [fork], 
plus other conveniences common among Unixoids, including keyed lists, profiling, [signal] and [kill], ...)
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On SourceForge it can be found at http://sourceforge.net/projects/tclx

   * Please report bugs to http://sourceforge.net/bugs/?group_id=13247
   * and place patches at http://sourceforge.net/patch/?group_id=13247

see ftp://ftp.tcl.tk/pub/tcl/nightly-cvs/ for a tar file of the sf.net cvs head .
 
The [ActiveTcl] Batteries Included distribution includes TclX.

[TclX Future] contains discussion about the interface and interaction between Tcl and TclX.

[TclX Commands] has a list of TclX's commands
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'''TclX Evolution, State and History''':

[Karl Lehenbauer] first wrote TclX, and he and [Mark Diekhans] maintained it for a long time.  
In spring 2002, [Jeffrey Hobbs] is "reforming" TclX, although he doesn't "own" it.

[JH]: TclX 8.4.0 was released on Nov 21, 2005.  There is no more Tk (aka wishx) component or stand-alone binary ('tcl' exe) support.  It is a true extension, now with better portability and a cleaner codebase.

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'''Replacement for wishx'''

Put this script, called wishx and marked executable, in your path:
 #!/bin/sh
 #\
 exec wish "$0" ${1+"$@"}
 package require Tk
 package require Tclx
 set argv [lassign $argv argv0]
 source $argv0

''Note: script fixed by [MS] after a bug report in clt [http://groups.google.com/group/comp.lang.tcl/browse_frm/thread/ac3da323fbc98717/8bbb2c39936cddc9#8bbb2c39936cddc9]''
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How many people use [TclX for Unix System Programming]?

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See also [scanxxx without tclx]

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[DKF]: TclX is useful when you're running [tclsh] in setuid or setgid mode, since it's [id] command can be used to perform the uid/gid changing often required when doing such things.

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%| [Category Package] | [Category TclX] |%
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