fix bug with verbs ending in -er, bump version

lib/suffix.ex

@@ -1,7 +1,7 @@
 defmodule Suffix do
 
  @consonant_pattern "[bcdfghjklmnpqrstvwxz]"
- @doubled_consonant_pattern "[bcdfghklmnprstz]"
+ @doubled_consonant_pattern "[bcdfghklmnprstz]{2}"
  @vowel_pattern "[aeiouy]"
  @doubled_vowel_pattern "[aeiouy]"
 
@@ -12,6 +12,8 @@ defmodule Suffix do
  String.replace_suffix(infinitive, "y", "ied")
  ends_vowel_lf?(infinitive) ->
  String.replace_suffix(infinitive, "lf", "lved")
+ ends_er?(infinitive) ->
+ infinitive <> "ed"
  ends_consonant_vowel_consonant?(infinitive) ->
  infinitive <> String.last(infinitive) <> "ed"
  true -> infinitive <> "ed"
@@ -47,11 +49,15 @@ defmodule Suffix do
  def ends_consonant_vowel_consonant?(infinitive) do
  pattern = @consonant_pattern <>
  @doubled_vowel_pattern <>
- @doubled_consonant_pattern <> "$"
+ @consonant_pattern <> "$"
  {:ok, regex} = Regex.compile(pattern, "i")
  Regex.match?(regex, infinitive)
  end
 
+ def ends_er?(infinitive) do
+ Regex.match?(~r/er/, infinitive)
+ end
+
  def ends_consonant_plus_y?(infinitive) do
  {:ok, regex} = Regex.compile(@consonant_pattern <> "y$", "i")
  Regex.match?(regex, infinitive)

mix.exs

@@ -8,7 +8,7 @@ defmodule Verbs.Mixfile do
  source_url: "https://github.com/shannonwells/verbs_ex",
  homepage_url: "https://github.com/shannonwells/verbs_ex",
  package: package(),
- version: "0.6.0",
+ version: "0.6.1",
  elixir: "~> 1.5",
  build_embedded: Mix.env == :prod,
  start_permanent: Mix.env == :prod,

test/conjugate_regular_test.exs

@@ -142,5 +142,23 @@ defmodule ConjugateRegularTest do
 
  end
 
+ test "ends two consonants" do
+ [ %{tense: "past", verb: "hack", expected: "hacked"},
+ ]
+ end
 
-end
+ test "-er, and odd, not irregular verb forms" do
+ [
+ %{tense: "past", verb: "clobber", expected: "clobbered"},
+ %{tense: "past", verb: "shatter", expected: "shattered"},
+ %{tense: "past", verb: "hack", expected: "hacked"},
+ %{tense: "past", verb: "miter", expected: "mitered"},
+ %{tense: "past", verb: "corner", expected: "cornered"},
+ %{tense: "past", verb: "belittle", expected: "belittled"},
+ ]
+ |> Enum.each( fn tc ->
+ options = %{:tense => tc.tense, :person => "first", :plurality => "singular"}
+ assert ConjugateRegular.conjugate(tc.verb, options) == tc.expected
+ end)
+ end
+end