Which programming languages should we add?

Question

Which programming languages would you like to see here for you to learn that we don't already have?

If possible also include a link to an open source implementation you suggest we use (if you know of one, otherwise don't worry, please still make your suggestion).

Answer 1

I would like to see a functional language like Haskell or Scala to highlight the pragmatic importance of functional and concurrent paradigms.

Comments

lisp is also good.

Answer 2

MySQL, C, C++, Java ...

Answer 3

HP OpenVMS DCL (Digital Command Language)
Prolog

Answer 4

java and c and c++

Answer 5

C, C++, and Java seem like the obvious choices, due to their popularity.  However, they also increase complexity, being compiled.  Objective-C might be worth looking at, eventually.

The ones I'd like to see, and think would be good choices, are Lisp/Scheme, Lua, and maybe Shell Scripting.

Other future choices that might be interesting are Google's Go, Erlang, Pascal, C#, and some form of Basic.

Note: I'm not necessarily a fan of all of these languages, but they are all getting used enough to make them worth considering.

Answer 6

freepascal, Lazarus -  http://www.lazarus.freepascal.org/