support elixir 1.5.1

.travis.yml

@@ -4,3 +4,4 @@ elixir:
   - 1.2.6
   - 1.3.4
   - 1.4.1
+  - 1.5.0

lib/readability/article_builder.ex

@@ -58,13 +58,15 @@ defmodule Readability.ArticleBuilder do
 
   defp find_article(candidates, html_tree) do
     best_candidate = CandidateFinder.find_best_candidate(candidates)
-    unless best_candidate do
-      best_candidate = case html_tree |> Floki.find("body") do
+    article_trees = if best_candidate do
+                      find_article_trees(best_candidate, candidates)
+                    else
+                      fallback_candidate = case html_tree |> Floki.find("body") do
                                              [tree|_] -> %Candidate{html_tree: tree}
                                              _ -> %Candidate{html_tree: {}}
                                            end
+                      find_article_trees(fallback_candidate, candidates)
                     end
-    article_trees = find_article_trees(best_candidate, candidates)
     {"div", [], article_trees}
   end
 
@@ -73,11 +75,12 @@ defmodule Readability.ArticleBuilder do
 
     candidates
     |> Enum.filter(&(&1.tree_depth == best_candidate.tree_depth))
-    |> Enum.filter_map(fn(candidate) ->
+    |> Enum.filter(fn(candidate) ->
          candidate == best_candidate
          || candidate.score >= score_threshold
          || append?(candidate)
-       end, &(to_article_tag(&1.html_tree)))
+       end)
+    |> Enum.map(&(to_article_tag(&1.html_tree)))
   end
 
   defp append?(%Candidate{html_tree: html_tree}) when elem(html_tree, 0) == "p" do

mix.exs

@@ -40,7 +40,7 @@ defmodule Readability.Mixfile do
   #
   # Type "mix help deps" for more examples and options
   defp deps do
-    [{:floki, "~> 0.18.0"},
+    [{:floki, "~> 0.14.0"},
      {:httpoison, "~> 0.13.0"},
      {:ex_doc, "~> 0.14", only: :dev},
      {:credo, "~> 0.6.1", only: [:dev, :test]},

mix.lock

@@ -4,7 +4,7 @@
   "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], []},
   "earmark": {:hex, :earmark, "1.2.3", "206eb2e2ac1a794aa5256f3982de7a76bf4579ff91cb28d0e17ea2c9491e46a4", [:mix], []},
   "ex_doc": {:hex, :ex_doc, "0.16.3", "cd2a4cfe5d26e37502d3ec776702c72efa1adfa24ed9ce723bb565f4c30bd31a", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, optional: false]}]},
-  "floki": {:hex, :floki, "0.18.0", "643d5e4bb325905328d250760ea622faebac4f7e1521f770d35fbb43d8dd4f5f", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, optional: false]}]},
+  "floki": {:hex, :floki, "0.14.0", "91a6be57349e10a63cf52d7890479a19012cef9185fa93c305d4fe42e6a50dee", [:mix], [{:mochiweb, "~> 2.15", [hex: :mochiweb, optional: false]}]},
   "hackney": {:hex, :hackney, "1.9.0", "51c506afc0a365868469dcfc79a9d0b94d896ec741cfd5bd338f49a5ec515bfe", [:rebar3], [{:certifi, "2.0.0", [hex: :certifi, optional: false]}, {:idna, "5.1.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, optional: false]}]},
   "httpoison": {:hex, :httpoison, "0.13.0", "bfaf44d9f133a6599886720f3937a7699466d23bb0cd7a88b6ba011f53c6f562", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, optional: false]}]},
   "idna": {:hex, :idna, "5.1.0", "d72b4effeb324ad5da3cab1767cb16b17939004e789d8c0ad5b70f3cea20c89a", [:rebar3], [{:unicode_util_compat, "0.3.1", [hex: :unicode_util_compat, optional: false]}]},