which language

[Peter L. Peres]

I am working on my idea of writing state machine descriptions in a
'language' of mine. I do not know what language is best to implement it.
To the point: I would like to use arity and type-based function
implementation matching, as is available in C++ and Prolog. Can this be
done in Perl or TCL or Python without reinventing the wheel ? I.e. is
there a straightforward syntax to write:

function foo(a) { print a }
function foo(a,b) { print a+b }

? what now ? Lisp ? Scheme ? tia,

Peter
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