Initial source code check-in

.gitignore

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+/ebin
+/deps
+erl_crash.dump

README.md

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+# EXN — Elixir Notation

lib/exn.ex

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+defmodule Exn do
+  def decode(string) when is_binary(string) do
+    values =
+    case Code.string_to_ast!(string) do
+      {:__block__,_, [item]} -> item
+      {:__block__,_, items} -> items
+      item -> item
+    end
+    unless Macro.term?(values) do
+      {:error, :term_expected}
+    else 
+      values
+    end
+  end
+
+  def encode(terms) when is_list(terms) do
+    if keywords?(terms) do
+      "[" <> 
+      Enum.join(
+      lc {key, value} inlist terms do
+        "#{key}: " <> encode(value)
+      end, ", ")
+       <> "]"
+    else
+      inspect terms
+    end
+  end
+  def encode(term), do: inspect(term)
+
+  defp keywords?(terms) do
+    Enum.all?(terms,
+              function do
+               {key, _value} ->
+                is_atom(key)
+               _ ->
+                false
+              end) and
+    List.sort(terms) == terms
+  end
+end

mix.exs

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+defmodule Exn.Mixfile do
+  use Mix.Project
+
+  def project do
+    [ app: :exn,
+      version: "0.0.1",
+      deps: deps ]
+  end
+
+  # Configuration for the OTP application
+  def application do
+    []
+  end
+
+  # Returns the list of dependencies in the format:
+  # { :foobar, "0.1", git: "https://github.com/elixir-lang/foobar.git" }
+  defp deps do
+    []
+  end
+end

test/exn_test.exs

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+Code.require_file "../test_helper.exs", __FILE__
+
+defmodule ExnTest do
+  use ExUnit.Case
+
+  test "the truth" do
+    assert true
+  end
+end

test/test_helper.exs

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+ExUnit.start