docs: def parse_index_parameter(self, node):
          """
          Parses <IndexParameter>
  
          @param node: Node containing the <IndexParameter> element
          @type node: xml.etree.Element
  
          @raise ParseError: Raised when the IndexParameter does not have a name.
          """
  
          if self.current_component_type == None:
              self.raise_error('IndexParameters can only be defined in ' +
                               'a component type')
  
          try:
              name = node.lattrib['name']
          except:
              self.raise_error('<IndexParameter> must specify a name')
  
  
          index_parameter = IndexParameter(name)
  
          self.current_component_type.add_index_parameter(index_parameter)