[wdb] As an [Emacs] fan, here are the features I like mostly:

   * double-click on opening paren selects complete expr
   * speedbar shows procs and methods
   * command line allows quick tests

I submitted a question concerning how to customize Emacs to accept not only
procs but also self-defined xprocs etc, but I got no answer. 
The solution of learning [Elisp] would take me more time than to make a new environment in Tcl/Tk. 
So, here it is: yet another IDE [http://wolf-dieter-busch.de/html/res/Heimatseite/download/IDE.zip], written in pure Tcl/Tk, optimised only for Tcl/Tk, quick'n'easy.

[http://wolf-dieter-busch.de/html/res/Heimatseite/img/sw/ScreenshotTclIDEsyntaxHighlight.png]

Written in pure Tcl/Tk such that you are not stuck to some special OO extension etc.
Documentation (Beta) included: [http://wolf-dieter-busch.de/html/Software/Tools/Tiny_TclTkIDE.htm].
2007-05-28 -- update: syntax hilight making switchable because in very long procedures, has heavy work. Fixed a bug with smart-indent on non-complete strings in text window.

The Hilight deals only with the [Endekalogue], i.e. the procedure [if] is recognized by its first position on command line, but the keyword [else] is '''not''' recognized as it is just another pure-string argument to an arbitrary procedure. 
Completely spoken: Tcl has '''no keywords'''.
--
This syntax hilight recognizes [{expand}] constructions [{*}]...
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More on the GUI of syntax hilight: if you open a file which is '''very''' large, then you can edit it immediately, but it can take several seconds before you see the syntax hilighting as it is bound to [after idle] event. This idea is stolen from MS Frontpage (which I do not like very much, but honour to those who honour deserve).

By the way. How do we think about software patents? '''Never ever!''' Thank you for your patience.

'''Features'''

   * syntax hilight -- see screenshot above
   * double-click, see above
   * Tab key on start of line invokes smart indent
   * bookmarks
   * directory window provides preview of procs in closed docs
   * keywords (method, proc ...) are hideable as well as namespace paths in directory window
   * command-line provides quick test,
   * send regions from text window directly to console window.

'''Moreover'''

These features are packaged such that they can be used separately (feel free to test them):

   * syntaxhilight -- the main command is ''syntaxhighlight::highlight win''
   * double-click -- changes Text bindings, see above
   * emacsIndent -- provides smart indent on Tab key
   * scrolledtext -- text widget with scrollbars
   * speedbar -- provides double-window with directory and file contents
   * consoleframe -- provides tiny console, not as top-level but as frame

Being optimised to easy overview on a project, this tool should be usable for a beginner. 
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2007 May 22 rgf To run this under linux with tclkit 8.4 I needed to comment out line 15 "namespace  import speedbar::speedbar" ... apparently this is already done by the package?

[wdb] Yes it is.
Some style guides say about delivering packages: do not pollute root namespace by importing your commands.
But, formally seen, speedbar is constructor of a mega-widget, and I put it to the root namespace as well as constructors of core widgets.
The double call of  ''namespace import speedbar::speedbar'' is now removed.

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[Category Dev. Tools] - [Category Development] - [IDE]