Contents

defmodule Words do
  @ascii_punctuation ~r/!|"|\#|\$|%|&|'|\(|\)|\*|\+|,|\.|\/|:|;|<|=|>|\?|@|\[|\\|]|\^|_|`|\{|\||}|~/

  def count(sentence) do
    sentence
    |> String.downcase()
    |> remove_punctuation
    |> to_words
    |> summarize
  end

  defp remove_punctuation(string), do: String.replace(string, @ascii_punctuation, " ")

  defp to_words(sentence), do: List.flatten(String.split(sentence))

  defp summarize(words) do
    Enum.reduce(words, %{}, &add_count/2)
  end

  defp add_count(word, counts) do
    Map.update(counts, word, 1, &(&1 + 1))
  end
end

Version data entries

69 entries across 69 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.179	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.178	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.177	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.176	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.175	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.174	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.173	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.172	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.171	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.170	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.169	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.167	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.166	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.165	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.164	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.163	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.162	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.161	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.160	tracks/elixir/exercises/word-count/example.exs