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-Introduction
-============
-
-.. module:: fun
-
-**Lua Fun** is a high-performance functional programming library
-designed for `LuaJIT tracing just-in-time compiler
-<http://luajit.org/luajit.html>`_.
-
-The library provides a set of more than 50 programming primitives typically
-found in languages like Standard ML, Haskell, Erlang, JavaScript, Python and
-even Lisp. High-order functions such as :func:`map`, :func:`filter`,
-:func:`reduce`, :func:`zip` will help you to **write simple and efficient
-functional code**.
-
-Let's see an example:
-
-.. code-block:: lua
-   :emphasize-lines: 2, 4
-
-    -- Functional style
-    require "fun" ()
-    n = 100
-    x = sum(map(function(x) return x^2 end, take(n, tabulate(math.sin))))
-    -- calculate sum(sin(x)^2 for x in 0..n-1)
-    print(x)
-    50.011981355266
-
-.. code-block:: lua
-   :emphasize-lines: 2, 4
-
-    -- Object-oriented style
-    local fun = require "fun"
-    n = 100
-    x = fun.tabulate(math.sin):take(n):map(function(x) return x^2 end):sum()
-    -- calculate sum(sin(x)^2 for x in 0..n-1)
-    print(x)
-    50.011981355266
-
-**Lua Fun** takes full advantage of the innovative **tracing JIT compiler**
-to achieve transcendental performance on nested functional expressions.
-Functional compositions and high-order functions can be translated into
-**efficient machine code**. Can you believe it? Just try to run the example above
-with ``luajit -jdump`` and see what happens:
-
-.. code-block:: none
-   :emphasize-lines: 2,14
-
-    -- skip some initilization code --
-    ->LOOP:
-    0bcaffd0  movsd [rsp+0x8], xmm7
-    0bcaffd6  addsd xmm4, xmm5
-    0bcaffda  ucomisd xmm6, xmm1
-    0bcaffde  jnb 0x0bca0028        ->6
-    0bcaffe4  addsd xmm6, xmm0
-    0bcaffe8  addsd xmm7, xmm0
-    0bcaffec  fld qword [rsp+0x8]
-    0bcafff0  fsin
-    0bcafff2  fstp qword [rsp]
-    0bcafff5  movsd xmm5, [rsp]
-    0bcafffa  mulsd xmm5, xmm5
-    0bcafffe  jmp 0x0bcaffd0        ->LOOP
-    ---- TRACE 1 stop -> loop
-
-
-The functional chain above was translated by LuaJIT to (!) **one machine loop**
-containing just 10 CPU assembly instructions without CALL. Unbelievable!
-
-Readable? Efficient? Can your Python/Ruby/V8 do better?