EEx do/end within a cond macro

[Andy-Richards]

Raising this issue as requested as per the mailing list https://groups.google.com/forum/#!topic/elixir-lang-talk/keFkzq-cs18

The issue can be seen when using a nested do/end tag within a cond macro in a EEx template. Its a little tricky to explain so the following unit test shows the problem. Basically the first test "nested cond" passes as expected, the second test "nested cond with end" containing a if/else macro fails returning what seems to be the value in the last case statement containing a do/end macro (in this case if/else/end). Hopefully that makes sense along with the unit test below.

ExUnit.start [trace: "--trace" in System.argv]

defmodule CondTest do
 use ExUnit.Case

 test "nested cond" do
  str = """
   <% y = ["a", "b", "c"] %>
   <% x = [1, 2, 3] %>   
   <%= cond do %>
    <% "a" in y -> %> <%# this matches as expected %>
     Good
    <% 1 in x -> %>
     Weird    
    <% true -> %>
     Bad
   <% end %>
  """
  assert "Good" === String.strip( EEx.eval_string(str, args: []) )
 end

 test "nested cond with end" do
  str = """
   <% y = ["a", "b", "c"] %>
   <% x = [1, 2, 3] %>   
   <%= cond do %>
    <% "a" in y -> %> <%# this doesnt match the last case below conatining an end tag does ? %>
     Good
    <% "b" in y -> %>
     <% if true do %>True<% else %>false<% end %>
     Weird2
    <% 1 in x -> %>
     <% if true do %>True<% else %>false<% end %>
     Weird
    <% 1 == 2 -> %>
     Weird3  
    <% true -> %>
     Bad
   <% end %>
  """
  assert "Good" === String.strip( EEx.eval_string(str, args: []) )
 end
end

Thanks,

Andy.