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from sphinx.util.docutils import SphinxDirective |
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from sphinx.locale import _ |
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from docutils import nodes |
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from sphinx import addnodes |
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from collections import OrderedDict, namedtuple |
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import importlib |
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import inspect |
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import os |
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import re |
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class attributetable(nodes.General, nodes.Element): |
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pass |
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class attributetablecolumn(nodes.General, nodes.Element): |
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pass |
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class attributetabletitle(nodes.TextElement): |
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pass |
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class attributetableplaceholder(nodes.General, nodes.Element): |
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pass |
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class attributetablebadge(nodes.TextElement): |
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pass |
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class attributetable_item(nodes.Part, nodes.Element): |
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pass |
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def visit_attributetable_node(self, node): |
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class_ = node["python-class"] |
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self.body.append( |
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f'<div class="py-attribute-table" data-move-to-id="{class_}">' |
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) |
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def visit_attributetablecolumn_node(self, node): |
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self.body.append(self.starttag( |
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node, 'div', CLASS='py-attribute-table-column') |
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) |
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def visit_attributetabletitle_node(self, node): |
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self.body.append(self.starttag(node, 'span')) |
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def visit_attributetablebadge_node(self, node): |
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attributes = { |
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'class': 'py-attribute-table-badge', |
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'title': node['badge-type'], |
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} |
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self.body.append(self.starttag(node, 'span', **attributes)) |
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def visit_attributetable_item_node(self, node): |
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self.body.append(self.starttag( |
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node, 'li', CLASS='py-attribute-table-entry') |
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) |
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def depart_attributetable_node(self, node): |
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self.body.append('</div>') |
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def depart_attributetablecolumn_node(self, node): |
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self.body.append('</div>') |
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def depart_attributetabletitle_node(self, node): |
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self.body.append('</span>') |
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def depart_attributetablebadge_node(self, node): |
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self.body.append('</span>') |
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def depart_attributetable_item_node(self, node): |
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self.body.append('</li>') |
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_name_parser_regex = re.compile(r'(?P<module>[\w.]+\.)?(?P<name>\w+)') |
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class PyAttributeTable(SphinxDirective): |
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has_content = False |
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required_arguments = 1 |
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optional_arguments = 0 |
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final_argument_whitespace = False |
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option_spec = {} |
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def parse_name(self, content): |
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path, name = _name_parser_regex.match(content).groups() |
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if path: |
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modulename = path.rstrip('.') |
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else: |
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modulename = self.env.temp_data.get('autodoc:module') |
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if not modulename: |
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modulename = self.env.ref_context.get('py:module') |
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if modulename is None: |
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raise RuntimeError('modulename somehow None for %s in %s.' % ( |
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content, self.env.docname)) |
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return modulename, name |
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def run(self): |
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"""If you're curious on the HTML this is meant to generate: |
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<div class="py-attribute-table"> |
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<div class="py-attribute-table-column"> |
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<span>_('Attributes')</span> |
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<ul> |
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<li> |
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<a href="..."> |
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</li> |
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</ul> |
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</div> |
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<div class="py-attribute-table-column"> |
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<span>_('Methods')</span> |
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<ul> |
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<li> |
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<a href="..."></a> |
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<span class="py-attribute-badge" title="decorator">D</span> |
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</li> |
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</ul> |
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</div> |
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</div> |
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However, since this requires the tree to be complete |
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and parsed, it'll need to be done at a different stage and then |
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replaced. |
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""" |
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content = self.arguments[0].strip() |
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node = attributetableplaceholder('') |
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modulename, name = self.parse_name(content) |
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node['python-doc'] = self.env.docname |
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node['python-module'] = modulename |
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node['python-class'] = name |
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node['python-full-name'] = f'{modulename}.{name}' |
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return [node] |
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def build_lookup_table(env): |
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# Given an environment, load up a lookup table of |
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# full-class-name: objects |
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result = {} |
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domain = env.domains['py'] |
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ignored = { |
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'data', 'exception', 'module', 'class', |
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} |
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for (fullname, _, objtype, docname, _, _) in domain.get_objects(): |
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if objtype in ignored: |
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continue |
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classname, _, child = fullname.rpartition('.') |
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try: |
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result[classname].append(child) |
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except KeyError: |
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result[classname] = [child] |
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return result |
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TableElement = namedtuple('TableElement', 'fullname label badge') |
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def process_attributetable(app, doctree, fromdocname): |
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env = app.builder.env |
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lookup = build_lookup_table(env) |
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for node in doctree.traverse(attributetableplaceholder): |
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modulename, classname, fullname = node['python-module'], node['python-class'], node['python-full-name'] |
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groups = get_class_results(lookup, modulename, classname, fullname) |
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table = attributetable('') |
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for label, subitems in groups.items(): |
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if not subitems: |
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continue |
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table.append(class_results_to_node( |
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label, sorted(subitems, key=lambda c: c.label))) |
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table['python-class'] = fullname |
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if not table: |
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node.replace_self([]) |
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else: |
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node.replace_self([table]) |
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def get_class_results(lookup, modulename, name, fullname): |
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module = importlib.import_module(modulename) |
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cls = getattr(module, name) |
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groups = OrderedDict([ |
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(_('Attributes'), []), |
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(_('Methods'), []), |
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]) |
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try: |
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members = lookup[fullname] |
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except KeyError: |
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return groups |
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for attr in members: |
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attrlookup = f'{fullname}.{attr}' |
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key = _('Attributes') |
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badge = None |
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label = attr |
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value = None |
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for base in cls.__mro__: |
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value = base.__dict__.get(attr) |
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if value is not None: |
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break |
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if value is not None: |
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doc = value.__doc__ or '' |
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if inspect.iscoroutinefunction(value) or doc.startswith('|coro|'): |
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key = _('Methods') |
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badge = attributetablebadge('async', 'async') |
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badge['badge-type'] = _('coroutine') |
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elif isinstance(value, classmethod): |
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key = _('Methods') |
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label = f'{name}.{attr}' |
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badge = attributetablebadge('cls', 'cls') |
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badge['badge-type'] = _('classmethod') |
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elif ( |
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inspect.isfunction(value) |
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or isinstance(value, staticmethod) |
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): |
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if ( |
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doc.startswith(('A decorator', 'A shortcut decorator')) |
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or label in ("event", "loop") |
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): |
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# finicky but surprisingly consistent |
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badge = attributetablebadge('@', '@') |
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badge['badge-type'] = _('decorator') |
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key = _('Methods') |
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else: |
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key = _('Methods') |
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badge = attributetablebadge('def', 'def') |
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badge['badge-type'] = _('method') |
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groups[key].append(TableElement( |
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fullname=attrlookup, label=label, badge=badge)) |
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return groups |
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def class_results_to_node(key, elements): |
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title = attributetabletitle(key, key) |
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ul = nodes.bullet_list('') |
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for element in elements: |
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ref = nodes.reference('', '', internal=True, |
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refuri='#' + element.fullname, |
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anchorname='', |
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*[nodes.Text(element.label)]) |
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para = addnodes.compact_paragraph('', '', ref) |
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if element.badge is not None: |
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ul.append(attributetable_item('', element.badge, para)) |
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else: |
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ul.append(attributetable_item('', para)) |
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return attributetablecolumn('', title, ul) |
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def setup(app): |
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app.add_directive('attributetable', PyAttributeTable) |
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app.add_node(attributetable, html=( |
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visit_attributetable_node, depart_attributetable_node)) |
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app.add_node(attributetablecolumn, html=( |
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visit_attributetablecolumn_node, depart_attributetablecolumn_node)) |
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app.add_node(attributetabletitle, html=( |
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visit_attributetabletitle_node, depart_attributetabletitle_node)) |
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app.add_node(attributetablebadge, html=( |
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visit_attributetablebadge_node, depart_attributetablebadge_node)) |
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app.add_node(attributetable_item, html=( |
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visit_attributetable_item_node, depart_attributetable_item_node)) |
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app.add_node(attributetableplaceholder) |
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app.connect('doctree-resolved', process_attributetable) |
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Pincer-org /
Pincer
