default behavior is inherited and it displays a RecipeOp assuming there are no children to display.
default behavior is inherited and it displays a RecipeOp assuming there are no children to display. Override and make it call one of the above toXML methods if there are children to display.
Returns the local part of the name of $arg as an xs:string that will either be the zero-length string or will have the lexical form of an xs:NCName
If the argument is omitted, it defaults to the context item (.). The behavior of the function if the argument is omitted is exactly the same as if the context item had been passed as the argument.
This function is called when 0 arguments are provided. We treat this as if the argument passed was "." to denote self.