+ @staticmethod
+ def _hidden_inputs(html):
+ return dict([
+ (input.group('name'), input.group('value')) for input in re.finditer(
+ r'''(?x)
+ <input\s+
+ type=(?P<q_hidden>["\'])hidden(?P=q_hidden)\s+
+ name=(?P<q_name>["\'])(?P<name>.+?)(?P=q_name)\s+
+ (?:id=(?P<q_id>["\']).+?(?P=q_id)\s+)?
+ value=(?P<q_value>["\'])(?P<value>.*?)(?P=q_value)
+ ''', html)
+ ])
+
+ def _form_hidden_inputs(self, form_id, html):
+ form = self._search_regex(
+ r'(?s)<form[^>]+?id=(["\'])%s\1[^>]*>(?P<form>.+?)</form>' % form_id,
+ html, '%s form' % form_id, group='form')
+ return self._hidden_inputs(form)
+
+ def _sort_formats(self, formats, field_preference=None):