VDict mobile



language /tik*l/ (Tcl) An interpreted string processing
language for issuing commands to interactive programs,
developed by John Ousterhout at UCB. Each applicationprogram can extend tcl with its own set of commands.
Tcl is like a text-oriented Lisp, but lets you write
algebraic expressions for simplicity and to avoid scaring
people away. Though originally designed to be a "scripting
language" rather than for serious programming, Tcl has been
used successfully for programs with hundreds of thousands of
lines.
It has a peculiar but simple syntax. It may be used as an
embedded interpreter in application programs. It has
exceptions and packages (called libraries), name-spaces
for procedures and variables, and provide/require. It
supports dynamic loading of object code. It is eight-bitclean. It has only three variable types: strings, lists and
Tcl and its associated GUI toolkit, Tk run on all
Tcl runs on the Amiga and many other platforms.
Current version: 8.0.3, as of 1998-09-25.
See also expect (control interactive programs and pattern
match on their output), Cygnus Tcl Tools, [incr Tcl] (adds
classes and inheritence to Tcl), Scriptics (John
Ousterhout's company that is the home of Tcl development and
the TclPro tool suite), Tcl Consortium (a non-profit agency
dedicated to promoting Tcl), tclhttpd (an embeddable
Tcl-based web server), tclx (adds many commands to Tcl),
["Tcl: An Embeddable Command Language", J. Ousterhout, Proc
1990 Winter USENIX Conf].
(1998-11-27)