def process_doc(self, app, doctree):
     # type: (Sphinx, nodes.Node) -> None
     docname = app.env.docname
     entries = app.env.indexentries[docname] = []
     for node in doctree.traverse(addnodes.index):
         try:
             for entry in node['entries']:
                 split_index_msg(entry[0], entry[1])
         except ValueError as exc:
             logger.warning(text_type(exc), location=node)
             node.parent.remove(node)
         else:
             for entry in node['entries']:
                 entries.append(entry)

 def process_doc(self, docname, doctree):
     entries = self.data[docname] = []
     for node in doctree.traverse(addnodes.index):
         try:
             for entry in node['entries']:
                 split_index_msg(entry[0], entry[1])
         except ValueError as exc:
             self.env.warn_node(exc, node)
             node.parent.remove(node)
         else:
             for entry in node['entries']:
                 if len(entry) == 5:
                     # Since 1.4: new index structure including index_key (5th column)
                     entries.append(entry)
                 else:
                     entries.append(entry + (None,))

 def process_doc(self, app, doctree):
     # type: (Sphinx, nodes.Node) -> None
     docname = app.env.docname
     entries = app.env.indexentries[docname] = []
     for node in doctree.traverse(addnodes.index):
         try:
             for entry in node['entries']:
                 split_index_msg(entry[0], entry[1])
         except ValueError as exc:
             logger.warning(text_type(exc), location=node)
             node.parent.remove(node)
         else:
             for entry in node['entries']:
                 if len(entry) == 5:
                     # Since 1.4: new index structure including index_key (5th column)
                     entries.append(entry)
                 else:
                     entries.append(entry + (None,))

    def write_doc(self, docname, doctree):
        catalog = self.catalogs[find_catalog(docname, self.config.gettext_compact)]

        for node, msg in extract_messages(doctree):
            catalog.add(msg, node)

        if "index" in self.env.config.gettext_additional_targets:
            # Extract translatable messages from index entries.
            for node, entries in traverse_translatable_index(doctree):
                for typ, msg, tid, main in entries:
                    for m in split_index_msg(typ, msg):
                        if typ == "pair" and m in pairindextypes.values():
                            # avoid built-in translated message was incorporated
                            # in 'sphinx.util.nodes.process_index_entry'
                            continue
                        catalog.add(m, node)

    def write_doc(self, docname, doctree):
        # type: (str, nodes.document) -> None
        catalog = self.catalogs[find_catalog(docname, self.config.gettext_compact)]

        for toctree in self.env.tocs[docname].traverse(addnodes.toctree):
            for node, msg in extract_messages(toctree):
                node.uid = ''  # type: ignore  # Hack UUID model
                catalog.add(msg, node)

        for node, msg in extract_messages(doctree):
            catalog.add(msg, node)

        if 'index' in self.env.config.gettext_additional_targets:
            # Extract translatable messages from index entries.
            for node, entries in traverse_translatable_index(doctree):
                for typ, msg, tid, main, key_ in entries:
                    for m in split_index_msg(typ, msg):
                        if typ == 'pair' and m in pairindextypes.values():
                            # avoid built-in translated message was incorporated
                            # in 'sphinx.util.nodes.process_index_entry'
                            continue
                        catalog.add(m, node)

#.........这里部分代码省略.........
            new_ref_names = [r['refname'] for r in new_refs]
            orphans = list(set(old_ref_names) - set(new_ref_names))
            for new in new_refs:
                if not self.document.has_name(new['refname']):
                    # Maybe refname is translated but target is not translated.
                    # Note: multiple translated refnames break link ordering.
                    if orphans:
                        new['refname'] = orphans.pop(0)
                    else:
                        # orphan refnames is already empty!
                        # reference number is same in new_refs and old_refs.
                        pass

                self.document.note_refname(new)

            # refnamed footnote and citation should use original 'ids'.
            def is_refnamed_footnote_ref(node):
                footnote_ref_classes = (nodes.footnote_reference,
                                        nodes.citation_reference)
                return isinstance(node, footnote_ref_classes) and \
                    'refname' in node
            old_refs = node.traverse(is_refnamed_footnote_ref)
            new_refs = patch.traverse(is_refnamed_footnote_ref)
            refname_ids_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent references in '
                              'translated message', node)
            for old in old_refs:
                refname_ids_map[old["refname"]] = old["ids"]
            for new in new_refs:
                refname = new["refname"]
                if refname in refname_ids_map:
                    new["ids"] = refname_ids_map[refname]

            # Original pending_xref['reftarget'] contain not-translated
            # target name, new pending_xref must use original one.
            # This code restricts to change ref-targets in the translation.
            old_refs = node.traverse(addnodes.pending_xref)
            new_refs = patch.traverse(addnodes.pending_xref)
            xref_reftarget_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent term references in '
                              'translated message', node)

            def get_ref_key(node):
                case = node["refdomain"], node["reftype"]
                if case == ('std', 'term'):
                    return None
                else:
                    return (
                        node["refdomain"],
                        node["reftype"],
                        node['reftarget'],)

            for old in old_refs:
                key = get_ref_key(old)
                if key:
                    xref_reftarget_map[key] = old.attributes
            for new in new_refs:
                key = get_ref_key(new)
                # Copy attributes to keep original node behavior. Especially
                # copying 'reftarget', 'py:module', 'py:class' are needed.
                for k, v in xref_reftarget_map.get(key, {}).items():
                    # Note: This implementation overwrite all attributes.
                    # if some attributes `k` should not be overwritten,
                    # you should provide exclude list as:
                    # `if k not in EXCLUDE_LIST: new[k] = v`
                    new[k] = v

            # update leaves
            for child in patch.children:
                child.parent = node
            node.children = patch.children

            # for highlighting that expects .rawsource and .astext() are same.
            if isinstance(node, LITERAL_TYPE_NODES):
                node.rawsource = node.astext()

            if isinstance(node, IMAGE_TYPE_NODES):
                node.update_all_atts(patch)

            node['translated'] = True

        if 'index' in env.config.gettext_additional_targets:
            # Extract and translate messages for index entries.
            for node, entries in traverse_translatable_index(self.document):
                new_entries = []
                for type, msg, tid, main in entries:
                    msg_parts = split_index_msg(type, msg)
                    msgstr_parts = []
                    for part in msg_parts:
                        msgstr = catalog.gettext(part)
                        if not msgstr:
                            msgstr = part
                        msgstr_parts.append(msgstr)

                    new_entries.append((type, ';'.join(msgstr_parts), tid, main))

                node['raw_entries'] = entries
                node['entries'] = new_entries

#.........这里部分代码省略.........
                        self.document.refnames.setdefault(refname, []),
                        old, new)

            # reference should use new (translated) 'refname'.
            # * reference target ".. _Python: ..." is not translatable.
            # * use translated refname for section refname.
            # * inline reference "`Python <...>`_" has no 'refname'.
            def is_refnamed_ref(node):
                return isinstance(node, nodes.reference) and  \
                    'refname' in node
            old_refs = node.traverse(is_refnamed_ref)
            new_refs = patch.traverse(is_refnamed_ref)
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent references in '
                              'translated message', node)
            old_ref_names = [r['refname'] for r in old_refs]
            new_ref_names = [r['refname'] for r in new_refs]
            orphans = list(set(old_ref_names) - set(new_ref_names))
            for new in new_refs:
                if not self.document.has_name(new['refname']):
                    # Maybe refname is translated but target is not translated.
                    # Note: multiple translated refnames break link ordering.
                    if orphans:
                        new['refname'] = orphans.pop(0)
                    else:
                        # orphan refnames is already empty!
                        # reference number is same in new_refs and old_refs.
                        pass

                self.document.note_refname(new)

            # refnamed footnote and citation should use original 'ids'.
            def is_refnamed_footnote_ref(node):
                footnote_ref_classes = (nodes.footnote_reference,
                                        nodes.citation_reference)
                return isinstance(node, footnote_ref_classes) and \
                    'refname' in node
            old_refs = node.traverse(is_refnamed_footnote_ref)
            new_refs = patch.traverse(is_refnamed_footnote_ref)
            refname_ids_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent references in '
                              'translated message', node)
            for old in old_refs:
                refname_ids_map[old["refname"]] = old["ids"]
            for new in new_refs:
                refname = new["refname"]
                if refname in refname_ids_map:
                    new["ids"] = refname_ids_map[refname]

            # Original pending_xref['reftarget'] contain not-translated
            # target name, new pending_xref must use original one.
            # This code restricts to change ref-targets in the translation.
            old_refs = node.traverse(addnodes.pending_xref)
            new_refs = patch.traverse(addnodes.pending_xref)
            xref_reftarget_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent term references in '
                              'translated message', node)
            def get_ref_key(node):
                case = node["refdomain"], node["reftype"]
                if case == ('std', 'term'):
                    return None
                else:
                    return (
                        node["refdomain"],
                        node["reftype"],
                        node['reftarget'],)

            for old in old_refs:
                key = get_ref_key(old)
                if key:
                    xref_reftarget_map[key] = old["reftarget"]
            for new in new_refs:
                key = get_ref_key(new)
                if key in xref_reftarget_map:
                    new['reftarget'] = xref_reftarget_map[key]

            # update leaves
            for child in patch.children:
                child.parent = node
            node.children = patch.children
            node['translated'] = True

        # Extract and translate messages for index entries.
        for node, entries in traverse_translatable_index(self.document):
            new_entries = []
            for type, msg, tid, main in entries:
                msg_parts = split_index_msg(type, msg)
                msgstr_parts = []
                for part in msg_parts:
                    msgstr = catalog.gettext(part)
                    if not msgstr:
                        msgstr = part
                    msgstr_parts.append(msgstr)

                new_entries.append((type, ';'.join(msgstr_parts), tid, main))

            node['raw_entries'] = entries
            node['entries'] = new_entries

#.........这里部分代码省略.........
                refname_ids_map.setdefault(oldf["refname"], []).append(oldf["ids"])
            for newf in new_foot_refs:
                refname = newf["refname"]
                if refname_ids_map.get(refname):
                    newf["ids"] = refname_ids_map[refname].pop(0)

            # citation should use original 'ids'.
            is_citation_ref = NodeMatcher(nodes.citation_reference, refname=Any)
            old_cite_refs = node.traverse(is_citation_ref)  # type: List[nodes.citation_reference]  # NOQA
            new_cite_refs = patch.traverse(is_citation_ref)  # type: List[nodes.citation_reference]  # NOQA
            refname_ids_map = {}
            if len(old_cite_refs) != len(new_cite_refs):
                old_cite_ref_rawsources = [ref.rawsource for ref in old_cite_refs]
                new_cite_ref_rawsources = [ref.rawsource for ref in new_cite_refs]
                logger.warning(__('inconsistent citation references in translated message.' +
                                  ' original: {0}, translated: {1}')
                               .format(old_cite_ref_rawsources, new_cite_ref_rawsources),
                               location=node)
            for oldc in old_cite_refs:
                refname_ids_map.setdefault(oldc["refname"], []).append(oldc["ids"])
            for newc in new_cite_refs:
                refname = newc["refname"]
                if refname_ids_map.get(refname):
                    newc["ids"] = refname_ids_map[refname].pop()

            # Original pending_xref['reftarget'] contain not-translated
            # target name, new pending_xref must use original one.
            # This code restricts to change ref-targets in the translation.
            old_xrefs = node.traverse(addnodes.pending_xref)
            new_xrefs = patch.traverse(addnodes.pending_xref)
            xref_reftarget_map = {}
            if len(old_xrefs) != len(new_xrefs):
                old_xref_rawsources = [xref.rawsource for xref in old_xrefs]
                new_xref_rawsources = [xref.rawsource for xref in new_xrefs]
                logger.warning(__('inconsistent term references in translated message.' +
                                  ' original: {0}, translated: {1}')
                               .format(old_xref_rawsources, new_xref_rawsources),
                               location=node)

            def get_ref_key(node):
                # type: (addnodes.pending_xref) -> Tuple[str, str, str]
                case = node["refdomain"], node["reftype"]
                if case == ('std', 'term'):
                    return None
                else:
                    return (
                        node["refdomain"],
                        node["reftype"],
                        node['reftarget'],)

            for old in old_xrefs:
                key = get_ref_key(old)
                if key:
                    xref_reftarget_map[key] = old.attributes
            for new in new_xrefs:
                key = get_ref_key(new)
                # Copy attributes to keep original node behavior. Especially
                # copying 'reftarget', 'py:module', 'py:class' are needed.
                for k, v in xref_reftarget_map.get(key, {}).items():
                    # Note: This implementation overwrite all attributes.
                    # if some attributes `k` should not be overwritten,
                    # you should provide exclude list as:
                    # `if k not in EXCLUDE_LIST: new[k] = v`
                    new[k] = v

            # update leaves
            for child in patch.children:
                child.parent = node
            node.children = patch.children

            # for highlighting that expects .rawsource and .astext() are same.
            if isinstance(node, LITERAL_TYPE_NODES):
                node.rawsource = node.astext()

            if isinstance(node, IMAGE_TYPE_NODES):
                node.update_all_atts(patch)

            node['translated'] = True  # to avoid double translation

        if 'index' in self.config.gettext_additional_targets:
            # Extract and translate messages for index entries.
            for node, entries in traverse_translatable_index(self.document):
                new_entries = []   # type: List[Tuple[str, str, str, str, str]]
                for type, msg, tid, main, key_ in entries:
                    msg_parts = split_index_msg(type, msg)
                    msgstr_parts = []
                    for part in msg_parts:
                        msgstr = catalog.gettext(part)
                        if not msgstr:
                            msgstr = part
                        msgstr_parts.append(msgstr)

                    new_entries.append((type, ';'.join(msgstr_parts), tid, main, None))

                node['raw_entries'] = entries
                node['entries'] = new_entries

        # remove translated attribute that is used for avoiding double translation.
        for translated in self.document.traverse(NodeMatcher(translated=Any)):  # type: nodes.Element  # NOQA
            translated.delattr('translated')

#.........这里部分代码省略.........
                return isinstance(node, nodes.footnote_reference) and \
                    node.get('auto') == 1
            old_foot_refs = node.traverse(is_autonumber_footnote_ref)
            new_foot_refs = patch.traverse(is_autonumber_footnote_ref)
            if len(old_foot_refs) != len(new_foot_refs):
                env.warn_node('inconsistent footnote references in '
                              'translated message', node)
            for old, new in zip(old_foot_refs, new_foot_refs):
                new['ids'] = old['ids']
                for id in new['ids']:
                    self.document.ids[id] = new
                self.document.autofootnote_refs.remove(old)
                self.document.note_autofootnote_ref(new)

            # reference should use original 'refname'.
            # * reference target ".. _Python: ..." is not translatable.
            # * section refname is not translatable.
            # * inline reference "`Python <...>`_" has no 'refname'.
            def is_refnamed_ref(node):
                return isinstance(node, nodes.reference) and  \
                    'refname' in node
            old_refs = node.traverse(is_refnamed_ref)
            new_refs = patch.traverse(is_refnamed_ref)
            applied_refname_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent references in '
                              'translated message', node)
            for new in new_refs:
                if new['refname'] in applied_refname_map:
                    # 2nd appearance of the reference
                    new['refname'] = applied_refname_map[new['refname']]
                elif old_refs:
                    # 1st appearance of the reference in old_refs
                    old = old_refs.pop(0)
                    refname = old['refname']
                    new['refname'] = refname
                    applied_refname_map[new['refname']] = refname
                else:
                    # the reference is not found in old_refs
                    applied_refname_map[new['refname']] = new['refname']

                self.document.note_refname(new)

            # refnamed footnote and citation should use original 'ids'.
            def is_refnamed_footnote_ref(node):
                footnote_ref_classes = (nodes.footnote_reference,
                                        nodes.citation_reference)
                return isinstance(node, footnote_ref_classes) and \
                    'refname' in node
            old_refs = node.traverse(is_refnamed_footnote_ref)
            new_refs = patch.traverse(is_refnamed_footnote_ref)
            refname_ids_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent references in '
                              'translated message', node)
            for old in old_refs:
                refname_ids_map[old["refname"]] = old["ids"]
            for new in new_refs:
                refname = new["refname"]
                if refname in refname_ids_map:
                    new["ids"] = refname_ids_map[refname]

            # Original pending_xref['reftarget'] contain not-translated
            # target name, new pending_xref must use original one.
            # This code restricts to change ref-targets in the translation.
            old_refs = node.traverse(addnodes.pending_xref)
            new_refs = patch.traverse(addnodes.pending_xref)
            xref_reftarget_map = {}
            if len(old_refs) != len(new_refs):
                env.warn_node('inconsistent term references in '
                              'translated message', node)
            for old in old_refs:
                key = old["reftype"], old["refdomain"]
                xref_reftarget_map[key] = old["reftarget"]
            for new in new_refs:
                key = new["reftype"], new["refdomain"]
                if key in xref_reftarget_map:
                    new['reftarget'] = xref_reftarget_map[key]

            # update leaves
            for child in patch.children:
                child.parent = node
            node.children = patch.children

        # Extract and translate messages for index entries.
        for node, entries in traverse_translatable_index(self.document):
            new_entries = []
            for type, msg, tid, main in entries:
                msg_parts = split_index_msg(type, msg)
                msgstr_parts = []
                for part in msg_parts:
                    msgstr = catalog.gettext(part)
                    if not msgstr:
                        msgstr = part
                    msgstr_parts.append(msgstr)

                new_entries.append((type, ';'.join(msgstr_parts), tid, main))

            node['raw_entries'] = entries
            node['entries'] = new_entries