Fixed issue #33 (via fczuardi): "multiline comments not working"

  See https://github.com/defunkt/pystache/issues/33

pystache/renderengine.py

@@ -106,7 +106,8 @@ class RenderEngine(object):
         self.section_re = re.compile(section, re.M|re.S)
 
         tag = r"%(otag)s(#|=|&|!|>|\{)?(.+?)\1?%(ctag)s+" % tags
-        self.tag_re = re.compile(tag)
+        # We use re.DOTALL to permit multiline comments, in accordance with the spec.
+        self.tag_re = re.compile(tag, re.DOTALL)
 
     def _render_tags(self, template):
         output = []

tests/test_renderengine.py

@@ -166,3 +166,11 @@ class RenderEngineTestCase(unittest.TestCase):
         context = {'test': (lambda text: '{{hi}} %s' % text)}
         self._assert_render('{{hi}} Mom', template, context)
 
+    def test_render__section__comment__multiline(self):
+        """
+        Check that multiline comments are permitted.
+
+        """
+        self._assert_render('foobar', 'foo{{! baz }}bar')
+        self._assert_render('foobar', 'foo{{! \nbaz }}bar')
+