Initiated by [Bryan Oakley] on news:comp.lang.tcl Dejanews thread waaayyy back in early 1999: [http://x3.dejanews.com/thread/447256341]

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Extensions which are already considered as ''official'' [[by whom?  Who makes the decision that Tk is official and other extensions are not?]] and included in the standard distribution of Tcl or Tk.

In Tcl, there is:

   * optparse  [Chris Nelson] said that he would like to work on this one, and that he already had made some speed improvements.  I submitted those improvements and I believe they'll be in 8.4 but N.B., the opt package is officially deprecated. -- [CLN]
   * http
   * dde (Win32 specific)
   * registry (Win32 specific)
   * Tclapplescript (MacOS specific)
   * resource (MacOS specific)
   * msgcat
   * [Stubs]


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[Tk] - a seperate source and binary distribution

Is there any additional extensions that come in Tk?

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[Tcllib]: pure-Tcl extension from http://sourceforge.net/projects/tcllib/

The 1.1 version of [tcllib] includes the following modules: 

   * [base64]     Base64 encoder and decoder.
   * [cmdline]    Command line argument processor similar to opt.
   * [comm]
   * [control]
   * [counter]    Event counters, interval timers, and histogram display
   * [csv]
   * [fileutil]   Tcl implementations of some standard Unix utilities.
   * [ftp]        Implementation of an ftp client..
   * [ftpd]       FTP server
   * [html]       HTML generation procedures. This uses ncgi.
   * [htmlparse]
   * [javascript] Javascript generation procedures
   * [log]
   * [math]       Common math functions like min, max, and others.
   * [md5]
   * [mime]       MIME encoder and decoder.
   * [ncgi]       New CGI processing module.
   * [nntp]       Network news transport protocol client support
   * [pop3]       POP3 protocol implementation
   * [profiler]   Function level Tcl source code profiler
   * [report]
   * [sha1]
   * [smtp]       Simple mail transport protocol implementation. Part of [mime].
   * [struct]     Tcl implementations of common data structures (tree, stack, graph)
   * [textutil]
   * [uri]        Manipulate universal resource indicators/location strings

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Proposed extensions:

   * [Additional list functions].
   * [Additional string functions].
   * Simple additional [package management] functionality.
   * [Additional math functions].
   * Additional file function [tailf]

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Others: Object-Oriented support, megawidgets,
ensembles, telnet, more image file format support - like png,
jpg, etc., more Tk widgets, generic database interface,
replacement for send that works cross platform and without requiring x, drag and drop,...

''Remark'': The proposed extensions are something I believe that most  will agree should be part of the library. In the "Others" section I listed everything else I could remember. We might have to discuss their placement.

-- [AK]