acronym elixir solution

elixir/acronym/.exercism/metadata.json

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+{"track":"elixir","exercise":"acronym","id":"f0e509924ee3483c83a8e3f370eade53","url":"https://exercism.io/my/solutions/f0e509924ee3483c83a8e3f370eade53","handle":"Xevion","is_requester":true,"auto_approve":false}

elixir/acronym/.formatter.exs

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+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]

elixir/acronym/.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+acronym-*.tar
+

elixir/acronym/README.md

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+# Acronym
+
+Convert a phrase to its acronym.
+
+Techies love their TLA (Three Letter Acronyms)!
+
+Help generate some jargon by writing a program that converts a long name
+like Portable Network Graphics to its acronym (PNG).
+
+## Running tests
+
+Execute the tests with:
+
+```bash
+$ mix test
+```
+
+### Pending tests
+
+In the test suites, all but the first test have been skipped.
+
+Once you get a test passing, you can unskip the next one by
+commenting out the relevant `@tag :pending` with a `#` symbol.
+
+For example:
+
+```elixir
+# @tag :pending
+test "shouting" do
+  assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
+end
+```
+
+Or, you can enable all the tests by commenting out the
+`ExUnit.configure` line in the test suite.
+
+```elixir
+# ExUnit.configure exclude: :pending, trace: true
+```
+
+If you're stuck on something, it may help to look at some of
+the [available resources](https://exercism.io/tracks/elixir/resources)
+out there where answers might be found.
+
+## Source
+
+Julien Vanier [https://github.com/monkbroc](https://github.com/monkbroc)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.

elixir/acronym/lib/acronym.ex

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+defmodule Acronym do
+  @doc """
+  Generate an acronym from a string.
+  "This is a string" => "TIAS"
+  """
+  @spec abbreviate(String.t()) :: String.t()
+  def abbreviate(string) do
+    string
+    |> String.split(~r/\s|[-]|(?<=[a-z])-(?=[A-Z])|(?<=[a-z])(?=[A-Z])/)
+    |> Enum.filter(&String.match?(&1, ~r/^\w/))
+    |> Enum.map(&String.upcase(String.at(String.trim(&1, "_"), 0)))
+    |> Enum.join("")
+  end
+end

elixir/acronym/mix.exs

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+defmodule Acronym.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :acronym,
+      version: "0.1.0",
+      # elixir: "~> 1.8",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end

elixir/acronym/test/acronym_test.exs

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+defmodule AcronymTest do
+  use ExUnit.Case
+
+  test "it produces acronyms from title case" do
+    assert Acronym.abbreviate("Portable Networks Graphic") === "PNG"
+  end
+
+  @tag :pending
+  test "it produces acronyms from lower case" do
+    assert Acronym.abbreviate("Ruby on Rails") === "ROR"
+  end
+
+  @tag :pending
+  test "it ignores punctuation" do
+    assert Acronym.abbreviate("First in, First out") === "FIFO"
+  end
+
+  @tag :pending
+  test "it produces acronyms from phrases with acronyms" do
+    assert Acronym.abbreviate("GNU Image Manipulation Program") === "GIMP"
+  end
+
+  @tag :pending
+  test "it produces acronyms ignoring punctuation and casing" do
+    assert Acronym.abbreviate("Complementary Metal-Oxide semiconductor") === "CMOS"
+  end
+
+  @tag :pending
+  test "it produces a very long abbreviation" do
+    assert Acronym.abbreviate(
+             "Rolling On The Floor Laughing So Hard That My Dogs Came Over And Licked Me"
+           ) === "ROTFLSHTMDCOALM"
+  end
+
+  @tag :pending
+  test "it produces acronyms from phrases with consecutive delimiters" do
+    assert Acronym.abbreviate("Something - I made up from thin air") === "SIMUFTA"
+  end
+
+  @tag :pending
+  test "it produces acronyms from phrases with apostrophes" do
+    assert Acronym.abbreviate("Halley's Comet") === "HC"
+  end
+
+  @tag :pending
+  test "it produces acronyms from phrases with underscore emphasis" do
+    assert Acronym.abbreviate("The Road _Not_ Taken") === "TRNT"
+  end
+
+  # Track specific test case: additional case
+  @tag :pending
+  test "it produces acronyms from inconsistent case" do
+    assert Acronym.abbreviate("HyperText Markup Language") === "HTML"
+  end
+end

elixir/acronym/test/test_helper.exs

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+ExUnit.start()
+# ExUnit.configure(exclude: :pending, trace: true)