code: def _parse_italics_and_bold(self):
          
          reset = self._head
          try:
              stack = self._parse(contexts.STYLE_BOLD)
          except BadRoute:
              self._head = reset
              try:
                  stack = self._parse(contexts.STYLE_ITALICS)
              except BadRoute:
                  self._head = reset
                  self._emit_text("'''''")
              else:
                  reset = self._head
                  try:
                      stack2 = self._parse(contexts.STYLE_BOLD)
                  except BadRoute:
                      self._head = reset
                      self._emit_text("'''")
                      self._emit_style_tag("i", "''", stack)
                  else:
                      self._push()
                      self._emit_style_tag("i", "''", stack)
                      self._emit_all(stack2)
                      self._emit_style_tag("b", "'''", self._pop())
          else:
              reset = self._head
              try:
                  stack2 = self._parse(contexts.STYLE_ITALICS)
              except BadRoute:
                  self._head = reset
                  self._emit_text("''")
                  self._emit_style_tag("b", "'''", stack)
              else:
                  self._push()
                  self._emit_style_tag("b", "'''", stack)
                  self._emit_all(stack2)
                  self._emit_style_tag("i", "''", self._pop())
docs: Parse wiki-style italics and bold together (i.e., five ticks).