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-2.2.1.119	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.118	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.117	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.116	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.115	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.114	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.113	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.111	tracks/elixir/exercises/word-count/example.exs
trackler-2.2.1.110	tracks/elixir/exercises/word-count/example.exs