elixir haml

form.html.eex

This is what I ultimately want to reproduce:

<%= form_for @changeset, @action, fn f -> %>
  <div class="form-group">
    <label for="page[title]">Title</label>
    <%= text_input f, :title, class: "form-control" %>
  </div>
  <div class="form-group">
    <label for="page[body"]>Body</label>
    <%= textarea f, :body, class: "form-control" %>
  </div>
  <div class="form-group">
    <%= submit "Submit", class: "btn btn-primary" %>
  </div>
<% end %>

form.html.haml

This "works" in that it produces what I want. But it's an abomination.

- form_for(@changeset, @action, fn f ->
  [safe("<div class=\"form-group\">"),
  safe("<label for=\"page[title]\">Title:</label>"),
  text_input(f, :title, class: "form-control"),
  safe("</div>"),
  safe("<div class=\"form-group\">"),
  safe("<label for=\"page[body]\">Body:</label>"),
  textarea(f, :body, class: "form-control"),
  safe("</div>"),
  safe("<div class=\"form-group\">"),
  submit("Submit", class: "btn btn-primary"),
  safe("</div>")]