def _extract_tag(self):
"""Extracts `TextValue` of tag from the current event."""
value = getattr(self._event, 'tag', None)
if value is None or value == '!':
return None
tag = TextValue(value)
tag.span = self._extract_property_span(self._event.start_mark, '!')
return tag
def _extract_anchor(self):
"""Extracts `TextValue` of anchor from the current event."""
value = getattr(self._event, 'anchor', None)
if value is None or value in ['*', '&']:
return None
anchor = TextValue(value)
symbol = '&'
if isinstance(self._event, pyyaml.AliasEvent):
symbol = '*'
anchor.span = self._extract_property_span(self._event.start_mark,
symbol)
return anchor
def _create_record_key(self):
"""Creates `TextValue` of record key."""
# check if key is scalar
if not isinstance(self._event, pyyaml.ScalarEvent):
start_pos = Position.from_mark(self._event.start_mark)
self._create_fatal_error_node(start_pos)
notification = Notification.from_name('ComplexRecordKey')
notification.span = self._fatal_error_node.span
self.notification_handler.report(notification)
self._event = None
self._iterate_events = False
return None
key = TextValue()
key.value = self._event.value
key.span = Span.from_event(self._event)
return key