[FW]: If you like Tcl for its high-level programming style, simplicity and cross-platform compatibility, you may also want to check out REBOL: [http://www.rebol.com/]

Its main disadvantage is that it's closed-source (though there appears to be an initiative to develop an open-source clone [http://sourceforge.net/projects/primo/]).  Another disadvantage Tcl'ers (such as myself) may find is that it has many, many data types (it even has a types for things like e-mail addresses) and has no built-in implementation of threads, tasks or an event loop.  A threading engine has been implemented, but instead of internal bytecode-based threading, it threads by running one line of actual textual code at a time from each thread.  It's stupid, I know, but technically it works.

This has been an unpaid advertisement.


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http://www.rebol.com/
 What: REBOL to Tcl interface
 Where: From the contact
 Description: Contact posted a small example to comp.lang.tcl,
        demonstrating how simple it was to set up a client server
        between REBOL and Tcl/Tk interpreters so that
        REBOL could do graphics in that fashion.
        Intended only as a proof-of-concept demonstration.
 Updated: 07/1999
 Contact: mailto:icimjs@loop.com
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Another [Scripting Language].  

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[Category Language]