fix rescue and ensure blocks (close #374)

lib/slim/end_inserter.rb

@@ -10,7 +10,7 @@ module Slim
   #
   # @api private
   class EndInserter < Filter
-    ELSE_REGEX = /\A(else|elsif|when)\b/
+    ELSE_REGEX = /\A(else|elsif|when|rescue|ensure)\b/
     END_REGEX = /\Aend\b/
 
     # Handle multi expression `[:multi, *exps]`

test/core/test_code_structure.rb

@@ -104,4 +104,46 @@ def test_render_with_yield
       'This is the menu'
     end
   end
+
+  def test_render_with_begin_rescue
+    source = %q{
+- begin
+  p Begin
+- rescue
+  p Rescue
+p After
+}
+
+    assert_html '<p>Begin</p><p>After</p>', source
+  end
+
+  def test_render_with_begin_rescue_exception
+    source = %q{
+- begin
+  p Begin
+  - raise 'Boom'
+  p After Boom
+- rescue => ex
+  p = ex.message
+p After
+}
+
+    assert_html '<p>Begin</p><p>Boom</p><p>After</p>', source
+  end
+
+  def test_render_with_begin_rescue_ensure
+    source = %q{
+- begin
+  p Begin
+  - raise 'Boom'
+  p After Boom
+- rescue => ex
+  p = ex.message
+- ensure
+  p Ensure
+p After
+}
+
+    assert_html '<p>Begin</p><p>Boom</p><p>Ensure</p><p>After</p>', source
+  end
 end