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Lua Bash is a bridge between GNU bash and the Lua scripting language. It allows replacing hot and complex code paths that formerly would be written in awk, sed, or even Perl with run-time efficient Lua code. It was developed and is used in the T2 SDE to accelerate code fragments that became too slow over the years.

Perl5, like Lua, has no OO model, just OO mechanism. This allows a proliferation (or experimentation) of different model.

Now with Moose, Perl5 find its ultimate OO model. Moose borrows all the best features from Perl6, CLOS (LISP), Smalltalk and many other languages. Moose is built on top of a metaobject protocol, with full introspection.

Coat is light-weight Perl5 module which just mimics Moose.

Finally, lua-Coat is the Lua port of Coat.