code: def _parse_italics(self):
          
          reset = self._head
          try:
              stack = self._parse(contexts.STYLE_ITALICS)
          except BadRoute as route:
              self._head = reset
              if route.context & contexts.STYLE_PASS_AGAIN:
                  new_ctx = contexts.STYLE_ITALICS | contexts.STYLE_SECOND_PASS
                  stack = self._parse(new_ctx)
              else:
                  return self._emit_text("''")
          self._emit_style_tag("i", "''", stack)
docs: Parse wiki-style italics.