Merge in lone underscore fix from asummers#46

lib/erlex.ex

@@ -565,7 +565,7 @@ defmodule Erlex do
  end
  end
 
- defp atomize(<<number>>) when is_number(number) do
+ defp atomize(<<number>>) when is_number(number) and number != ?_ do
  to_string(number)
  end
 

test/literals_pretty_print_test.exs

@@ -131,4 +131,11 @@ defmodule Erlex.Test.LiteralsPretyPrintTest do
 
  assert pretty_printed == "<<_ :: 8, _ :: size(1)>>, false"
  end
+
+ test "keep underscore in pattern" do
+ input = "{'embed', __@3, __@4}"
+ pretty_printed = Erlex.pretty_print_type(input)
+
+ assert pretty_printed == "{:embed, _, _}"
+ end
 end