Processes the specified xml list and executable to link *embedded*
        types and executables to their docstrings.

        :arg xlist: a list of XML elements returned by parse_docs().
        :arg add: when true, docstrings are only appended, never overwritten.

def process_embedded(self, xlist, anexec, add=True):
        """Processes the specified xml list and executable to link *embedded*
        types and executables to their docstrings.

        :arg xlist: a list of XML elements returned by parse_docs().
        :arg add: when true, docstrings are only appended, never overwritten.
        """
        #Keep track of the changes that took place in the lengths of the 
        #docstrings that got added/updated on the elements children.
        delta = 0
        for t in anexec.types:
            key = "{}.{}".format(anexec.name, t)
            if key in xlist:
                docs = self.to_doc(xlist[key][0], t)
                self.process_memberdocs(docs, anexec.types[t], add)
                anexec.types[t].docstart = xlist[key][1]
                delta += xlist[key][2] - anexec.types[t].docend
                anexec.types[t].docend = xlist[key][2]

        for iexec in anexec.executables:
            key = "{}.{}".format(anexec.name, iexec)
            if key in xlist:
                docs = self.to_doc(xlist[key][0], t)
                self.process_memberdocs(docs, anexec.executables[iexec], add)
                anexec.executables[iexec].docstart = xlist[key][1]
                delta += xlist[key][2] - anexec.executables[iexec].docend
                anexec.executables[iexec].docend = xlist[key][2]

        if not add:
            return delta