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Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/docs/sphinxext/inheritance_diagram.py')
| -rw-r--r-- | external_libs/python/pyzmq-14.7.0/docs/sphinxext/inheritance_diagram.py | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/docs/sphinxext/inheritance_diagram.py b/external_libs/python/pyzmq-14.7.0/docs/sphinxext/inheritance_diagram.py deleted file mode 100644 index 407fc13f..00000000 --- a/external_libs/python/pyzmq-14.7.0/docs/sphinxext/inheritance_diagram.py +++ /dev/null @@ -1,407 +0,0 @@ -""" -Defines a docutils directive for inserting inheritance diagrams. - -Provide the directive with one or more classes or modules (separated -by whitespace). For modules, all of the classes in that module will -be used. - -Example:: - - Given the following classes: - - class A: pass - class B(A): pass - class C(A): pass - class D(B, C): pass - class E(B): pass - - .. inheritance-diagram: D E - - Produces a graph like the following: - - A - / \ - B C - / \ / - E D - -The graph is inserted as a PNG+image map into HTML and a PDF in -LaTeX. -""" - -import inspect -import os -import re -import subprocess -try: - from hashlib import md5 -except ImportError: - from md5 import md5 - -from docutils.nodes import Body, Element -from docutils.parsers.rst import directives -from sphinx.roles import xfileref_role - -def my_import(name): - """Module importer - taken from the python documentation. - - This function allows importing names with dots in them.""" - - mod = __import__(name) - components = name.split('.') - for comp in components[1:]: - mod = getattr(mod, comp) - return mod - -class DotException(Exception): - pass - -class InheritanceGraph(object): - """ - Given a list of classes, determines the set of classes that - they inherit from all the way to the root "object", and then - is able to generate a graphviz dot graph from them. - """ - def __init__(self, class_names, show_builtins=False): - """ - *class_names* is a list of child classes to show bases from. - - If *show_builtins* is True, then Python builtins will be shown - in the graph. - """ - self.class_names = class_names - self.classes = self._import_classes(class_names) - self.all_classes = self._all_classes(self.classes) - if len(self.all_classes) == 0: - raise ValueError("No classes found for inheritance diagram") - self.show_builtins = show_builtins - - py_sig_re = re.compile(r'''^([\w.]*\.)? # class names - (\w+) \s* $ # optionally arguments - ''', re.VERBOSE) - - def _import_class_or_module(self, name): - """ - Import a class using its fully-qualified *name*. - """ - try: - path, base = self.py_sig_re.match(name).groups() - except: - raise ValueError( - "Invalid class or module '%s' specified for inheritance diagram" % name) - fullname = (path or '') + base - path = (path and path.rstrip('.')) - if not path: - path = base - try: - module = __import__(path, None, None, []) - # We must do an import of the fully qualified name. Otherwise if a - # subpackage 'a.b' is requested where 'import a' does NOT provide - # 'a.b' automatically, then 'a.b' will not be found below. This - # second call will force the equivalent of 'import a.b' to happen - # after the top-level import above. - my_import(fullname) - - except ImportError: - raise ValueError( - "Could not import class or module '%s' specified for inheritance diagram" % name) - - try: - todoc = module - for comp in fullname.split('.')[1:]: - todoc = getattr(todoc, comp) - except AttributeError: - raise ValueError( - "Could not find class or module '%s' specified for inheritance diagram" % name) - - # If a class, just return it - if inspect.isclass(todoc): - return [todoc] - elif inspect.ismodule(todoc): - classes = [] - for cls in todoc.__dict__.values(): - if inspect.isclass(cls) and cls.__module__ == todoc.__name__: - classes.append(cls) - return classes - raise ValueError( - "'%s' does not resolve to a class or module" % name) - - def _import_classes(self, class_names): - """ - Import a list of classes. - """ - classes = [] - for name in class_names: - classes.extend(self._import_class_or_module(name)) - return classes - - def _all_classes(self, classes): - """ - Return a list of all classes that are ancestors of *classes*. - """ - all_classes = {} - - def recurse(cls): - all_classes[cls] = None - for c in cls.__bases__: - if c not in all_classes: - recurse(c) - - for cls in classes: - recurse(cls) - - return all_classes.keys() - - def class_name(self, cls, parts=0): - """ - Given a class object, return a fully-qualified name. This - works for things I've tested in matplotlib so far, but may not - be completely general. - """ - module = cls.__module__ - if module == '__builtin__': - fullname = cls.__name__ - else: - fullname = "%s.%s" % (module, cls.__name__) - if parts == 0: - return fullname - name_parts = fullname.split('.') - return '.'.join(name_parts[-parts:]) - - def get_all_class_names(self): - """ - Get all of the class names involved in the graph. - """ - return [self.class_name(x) for x in self.all_classes] - - # These are the default options for graphviz - default_graph_options = { - "rankdir": "LR", - "size": '"8.0, 12.0"' - } - default_node_options = { - "shape": "box", - "fontsize": 10, - "height": 0.25, - "fontname": "Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans", - "style": '"setlinewidth(0.5)"' - } - default_edge_options = { - "arrowsize": 0.5, - "style": '"setlinewidth(0.5)"' - } - - def _format_node_options(self, options): - return ','.join(["%s=%s" % x for x in options.items()]) - def _format_graph_options(self, options): - return ''.join(["%s=%s;\n" % x for x in options.items()]) - - def generate_dot(self, fd, name, parts=0, urls={}, - graph_options={}, node_options={}, - edge_options={}): - """ - Generate a graphviz dot graph from the classes that - were passed in to __init__. - - *fd* is a Python file-like object to write to. - - *name* is the name of the graph - - *urls* is a dictionary mapping class names to http urls - - *graph_options*, *node_options*, *edge_options* are - dictionaries containing key/value pairs to pass on as graphviz - properties. - """ - g_options = self.default_graph_options.copy() - g_options.update(graph_options) - n_options = self.default_node_options.copy() - n_options.update(node_options) - e_options = self.default_edge_options.copy() - e_options.update(edge_options) - - fd.write('digraph %s {\n' % name) - fd.write(self._format_graph_options(g_options)) - - for cls in self.all_classes: - if not self.show_builtins and cls in __builtins__.values(): - continue - - name = self.class_name(cls, parts) - - # Write the node - this_node_options = n_options.copy() - url = urls.get(self.class_name(cls)) - if url is not None: - this_node_options['URL'] = '"%s"' % url - fd.write(' "%s" [%s];\n' % - (name, self._format_node_options(this_node_options))) - - # Write the edges - for base in cls.__bases__: - if not self.show_builtins and base in __builtins__.values(): - continue - - base_name = self.class_name(base, parts) - fd.write(' "%s" -> "%s" [%s];\n' % - (base_name, name, - self._format_node_options(e_options))) - fd.write('}\n') - - def run_dot(self, args, name, parts=0, urls={}, - graph_options={}, node_options={}, edge_options={}): - """ - Run graphviz 'dot' over this graph, returning whatever 'dot' - writes to stdout. - - *args* will be passed along as commandline arguments. - - *name* is the name of the graph - - *urls* is a dictionary mapping class names to http urls - - Raises DotException for any of the many os and - installation-related errors that may occur. - """ - try: - dot = subprocess.Popen(['dot'] + list(args), - stdin=subprocess.PIPE, stdout=subprocess.PIPE, - close_fds=True) - except OSError: - raise DotException("Could not execute 'dot'. Are you sure you have 'graphviz' installed?") - except ValueError: - raise DotException("'dot' called with invalid arguments") - except: - raise DotException("Unexpected error calling 'dot'") - - self.generate_dot(dot.stdin, name, parts, urls, graph_options, - node_options, edge_options) - dot.stdin.close() - result = dot.stdout.read() - returncode = dot.wait() - if returncode != 0: - raise DotException("'dot' returned the errorcode %d" % returncode) - return result - -class inheritance_diagram(Body, Element): - """ - A docutils node to use as a placeholder for the inheritance - diagram. - """ - pass - -def inheritance_diagram_directive(name, arguments, options, content, lineno, - content_offset, block_text, state, - state_machine): - """ - Run when the inheritance_diagram directive is first encountered. - """ - node = inheritance_diagram() - - class_names = arguments - - # Create a graph starting with the list of classes - graph = InheritanceGraph(class_names) - - # Create xref nodes for each target of the graph's image map and - # add them to the doc tree so that Sphinx can resolve the - # references to real URLs later. These nodes will eventually be - # removed from the doctree after we're done with them. - for name in graph.get_all_class_names(): - refnodes, x = xfileref_role( - 'class', ':class:`%s`' % name, name, 0, state) - node.extend(refnodes) - # Store the graph object so we can use it to generate the - # dot file later - node['graph'] = graph - # Store the original content for use as a hash - node['parts'] = options.get('parts', 0) - node['content'] = " ".join(class_names) - return [node] - -def get_graph_hash(node): - return md5(node['content'] + str(node['parts'])).hexdigest()[-10:] - -def html_output_graph(self, node): - """ - Output the graph for HTML. This will insert a PNG with clickable - image map. - """ - graph = node['graph'] - parts = node['parts'] - - graph_hash = get_graph_hash(node) - name = "inheritance%s" % graph_hash - path = '_images' - dest_path = os.path.join(setup.app.builder.outdir, path) - if not os.path.exists(dest_path): - os.makedirs(dest_path) - png_path = os.path.join(dest_path, name + ".png") - path = setup.app.builder.imgpath - - # Create a mapping from fully-qualified class names to URLs. - urls = {} - for child in node: - if child.get('refuri') is not None: - urls[child['reftitle']] = child.get('refuri') - elif child.get('refid') is not None: - urls[child['reftitle']] = '#' + child.get('refid') - - # These arguments to dot will save a PNG file to disk and write - # an HTML image map to stdout. - image_map = graph.run_dot(['-Tpng', '-o%s' % png_path, '-Tcmapx'], - name, parts, urls) - return ('<img src="%s/%s.png" usemap="#%s" class="inheritance"/>%s' % - (path, name, name, image_map)) - -def latex_output_graph(self, node): - """ - Output the graph for LaTeX. This will insert a PDF. - """ - graph = node['graph'] - parts = node['parts'] - - graph_hash = get_graph_hash(node) - name = "inheritance%s" % graph_hash - dest_path = os.path.abspath(os.path.join(setup.app.builder.outdir, '_images')) - if not os.path.exists(dest_path): - os.makedirs(dest_path) - pdf_path = os.path.abspath(os.path.join(dest_path, name + ".pdf")) - - graph.run_dot(['-Tpdf', '-o%s' % pdf_path], - name, parts, graph_options={'size': '"6.0,6.0"'}) - return '\n\\includegraphics{%s}\n\n' % pdf_path - -def visit_inheritance_diagram(inner_func): - """ - This is just a wrapper around html/latex_output_graph to make it - easier to handle errors and insert warnings. - """ - def visitor(self, node): - try: - content = inner_func(self, node) - except DotException, e: - # Insert the exception as a warning in the document - warning = self.document.reporter.warning(str(e), line=node.line) - warning.parent = node - node.children = [warning] - else: - source = self.document.attributes['source'] - self.body.append(content) - node.children = [] - return visitor - -def do_nothing(self, node): - pass - -def setup(app): - setup.app = app - setup.confdir = app.confdir - - app.add_node( - inheritance_diagram, - latex=(visit_inheritance_diagram(latex_output_graph), do_nothing), - html=(visit_inheritance_diagram(html_output_graph), do_nothing)) - app.add_directive( - 'inheritance-diagram', inheritance_diagram_directive, - False, (1, 100, 0), parts = directives.nonnegative_int) |