440 lines
16 KiB
Python
440 lines
16 KiB
Python
# -*- coding: utf-8 -*-
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"""
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pyspecific.py
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~~~~~~~~~~~~~
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Sphinx extension with Python doc-specific markup.
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:copyright: 2008-2014 by Georg Brandl.
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:license: Python license.
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"""
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import re
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import io
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from os import path
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from time import asctime
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from pprint import pformat
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from docutils.io import StringOutput
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from docutils.parsers.rst import Directive
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from docutils.utils import new_document
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from docutils import nodes, utils
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from sphinx import addnodes
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from sphinx.builders import Builder
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from sphinx.locale import translators
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from sphinx.util import status_iterator
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from sphinx.util.nodes import split_explicit_title
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from sphinx.writers.html import HTMLTranslator
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from sphinx.writers.text import TextWriter, TextTranslator
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from sphinx.writers.latex import LaTeXTranslator
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from sphinx.domains.python import PyModulelevel, PyClassmember
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# Support for checking for suspicious markup
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import suspicious
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ISSUE_URI = 'https://bugs.python.org/issue%s'
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SOURCE_URI = 'https://github.com/python/cpython/tree/3.7/%s'
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# monkey-patch reST parser to disable alphabetic and roman enumerated lists
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from docutils.parsers.rst.states import Body
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Body.enum.converters['loweralpha'] = \
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Body.enum.converters['upperalpha'] = \
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Body.enum.converters['lowerroman'] = \
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Body.enum.converters['upperroman'] = lambda x: None
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# monkey-patch HTML and LaTeX translators to keep doctest blocks in the
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# doctest docs themselves
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orig_visit_literal_block = HTMLTranslator.visit_literal_block
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orig_depart_literal_block = LaTeXTranslator.depart_literal_block
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def new_visit_literal_block(self, node):
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meta = self.builder.env.metadata[self.builder.current_docname]
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old_trim_doctest_flags = self.highlighter.trim_doctest_flags
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if 'keepdoctest' in meta:
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self.highlighter.trim_doctest_flags = False
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try:
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orig_visit_literal_block(self, node)
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finally:
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self.highlighter.trim_doctest_flags = old_trim_doctest_flags
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def new_depart_literal_block(self, node):
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meta = self.builder.env.metadata[self.curfilestack[-1]]
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old_trim_doctest_flags = self.highlighter.trim_doctest_flags
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if 'keepdoctest' in meta:
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self.highlighter.trim_doctest_flags = False
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try:
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orig_depart_literal_block(self, node)
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finally:
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self.highlighter.trim_doctest_flags = old_trim_doctest_flags
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HTMLTranslator.visit_literal_block = new_visit_literal_block
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LaTeXTranslator.depart_literal_block = new_depart_literal_block
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# Support for marking up and linking to bugs.python.org issues
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def issue_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
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issue = utils.unescape(text)
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text = 'bpo-' + issue
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refnode = nodes.reference(text, text, refuri=ISSUE_URI % issue)
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return [refnode], []
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# Support for linking to Python source files easily
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def source_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
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has_t, title, target = split_explicit_title(text)
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title = utils.unescape(title)
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target = utils.unescape(target)
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refnode = nodes.reference(title, title, refuri=SOURCE_URI % target)
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return [refnode], []
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# Support for marking up implementation details
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class ImplementationDetail(Directive):
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has_content = True
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required_arguments = 0
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optional_arguments = 1
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final_argument_whitespace = True
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# This text is copied to templates/dummy.html
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label_text = 'CPython implementation detail:'
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def run(self):
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pnode = nodes.compound(classes=['impl-detail'])
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label = translators['sphinx'].gettext(self.label_text)
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content = self.content
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add_text = nodes.strong(label, label)
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if self.arguments:
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n, m = self.state.inline_text(self.arguments[0], self.lineno)
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pnode.append(nodes.paragraph('', '', *(n + m)))
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self.state.nested_parse(content, self.content_offset, pnode)
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if pnode.children and isinstance(pnode[0], nodes.paragraph):
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content = nodes.inline(pnode[0].rawsource, translatable=True)
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content.source = pnode[0].source
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content.line = pnode[0].line
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content += pnode[0].children
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pnode[0].replace_self(nodes.paragraph('', '', content,
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translatable=False))
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pnode[0].insert(0, add_text)
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pnode[0].insert(1, nodes.Text(' '))
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else:
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pnode.insert(0, nodes.paragraph('', '', add_text))
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return [pnode]
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# Support for documenting platform availability
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class Availability(Directive):
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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 = True
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def run(self):
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availability_ref = ':ref:`Availability <availability>`: '
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pnode = nodes.paragraph(availability_ref + self.arguments[0],
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classes=["availability"],)
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n, m = self.state.inline_text(availability_ref, self.lineno)
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pnode.extend(n + m)
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n, m = self.state.inline_text(self.arguments[0], self.lineno)
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pnode.extend(n + m)
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return [pnode]
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# Support for documenting decorators
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class PyDecoratorMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyDecoratorMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_addname('@', '@'))
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return ret
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def needs_arglist(self):
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return False
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class PyDecoratorFunction(PyDecoratorMixin, PyModulelevel):
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def run(self):
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# a decorator function is a function after all
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self.name = 'py:function'
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return PyModulelevel.run(self)
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class PyDecoratorMethod(PyDecoratorMixin, PyClassmember):
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def run(self):
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self.name = 'py:method'
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return PyClassmember.run(self)
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class PyCoroutineMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyCoroutineMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('coroutine ', 'coroutine '))
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return ret
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class PyAwaitableMixin(object):
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def handle_signature(self, sig, signode):
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ret = super(PyAwaitableMixin, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('awaitable ', 'awaitable '))
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return ret
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class PyCoroutineFunction(PyCoroutineMixin, PyModulelevel):
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def run(self):
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self.name = 'py:function'
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return PyModulelevel.run(self)
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class PyCoroutineMethod(PyCoroutineMixin, PyClassmember):
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def run(self):
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self.name = 'py:method'
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return PyClassmember.run(self)
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class PyAwaitableFunction(PyAwaitableMixin, PyClassmember):
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def run(self):
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self.name = 'py:function'
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return PyClassmember.run(self)
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class PyAwaitableMethod(PyAwaitableMixin, PyClassmember):
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def run(self):
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self.name = 'py:method'
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return PyClassmember.run(self)
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class PyAbstractMethod(PyClassmember):
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def handle_signature(self, sig, signode):
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ret = super(PyAbstractMethod, self).handle_signature(sig, signode)
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signode.insert(0, addnodes.desc_annotation('abstractmethod ',
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'abstractmethod '))
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return ret
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def run(self):
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self.name = 'py:method'
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return PyClassmember.run(self)
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# Support for documenting version of removal in deprecations
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class DeprecatedRemoved(Directive):
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has_content = True
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required_arguments = 2
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optional_arguments = 1
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final_argument_whitespace = True
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option_spec = {}
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_label = 'Deprecated since version {deprecated}, will be removed in version {removed}'
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def run(self):
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node = addnodes.versionmodified()
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node.document = self.state.document
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node['type'] = 'deprecated-removed'
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version = (self.arguments[0], self.arguments[1])
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node['version'] = version
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label = translators['sphinx'].gettext(self._label)
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text = label.format(deprecated=self.arguments[0], removed=self.arguments[1])
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if len(self.arguments) == 3:
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inodes, messages = self.state.inline_text(self.arguments[2],
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self.lineno+1)
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para = nodes.paragraph(self.arguments[2], '', *inodes, translatable=False)
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node.append(para)
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else:
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messages = []
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if self.content:
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self.state.nested_parse(self.content, self.content_offset, node)
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if len(node):
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if isinstance(node[0], nodes.paragraph) and node[0].rawsource:
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content = nodes.inline(node[0].rawsource, translatable=True)
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content.source = node[0].source
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content.line = node[0].line
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content += node[0].children
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node[0].replace_self(nodes.paragraph('', '', content, translatable=False))
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node[0].insert(0, nodes.inline('', '%s: ' % text,
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classes=['versionmodified']))
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else:
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para = nodes.paragraph('', '',
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nodes.inline('', '%s.' % text,
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classes=['versionmodified']),
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translatable=False)
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node.append(para)
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env = self.state.document.settings.env
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env.note_versionchange('deprecated', version[0], node, self.lineno)
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return [node] + messages
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# Support for including Misc/NEWS
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issue_re = re.compile('(?:[Ii]ssue #|bpo-)([0-9]+)')
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whatsnew_re = re.compile(r"(?im)^what's new in (.*?)\??$")
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class MiscNews(Directive):
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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 run(self):
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fname = self.arguments[0]
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source = self.state_machine.input_lines.source(
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self.lineno - self.state_machine.input_offset - 1)
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source_dir = path.dirname(path.abspath(source))
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fpath = path.join(source_dir, fname)
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self.state.document.settings.record_dependencies.add(fpath)
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try:
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with io.open(fpath, encoding='utf-8') as fp:
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content = fp.read()
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except Exception:
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text = 'The NEWS file is not available.'
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node = nodes.strong(text, text)
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return [node]
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content = issue_re.sub(r'`bpo-\1 <https://bugs.python.org/issue\1>`__',
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content)
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content = whatsnew_re.sub(r'\1', content)
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# remove first 3 lines as they are the main heading
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lines = ['.. default-role:: obj', ''] + content.splitlines()[3:]
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self.state_machine.insert_input(lines, fname)
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return []
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# Support for building "topic help" for pydoc
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pydoc_topic_labels = [
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'assert', 'assignment', 'async', 'atom-identifiers', 'atom-literals',
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'attribute-access', 'attribute-references', 'augassign', 'await',
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'binary', 'bitwise', 'bltin-code-objects', 'bltin-ellipsis-object',
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'bltin-null-object', 'bltin-type-objects', 'booleans',
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'break', 'callable-types', 'calls', 'class', 'comparisons', 'compound',
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'context-managers', 'continue', 'conversions', 'customization', 'debugger',
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'del', 'dict', 'dynamic-features', 'else', 'exceptions', 'execmodel',
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'exprlists', 'floating', 'for', 'formatstrings', 'function', 'global',
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'id-classes', 'identifiers', 'if', 'imaginary', 'import', 'in', 'integers',
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'lambda', 'lists', 'naming', 'nonlocal', 'numbers', 'numeric-types',
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'objects', 'operator-summary', 'pass', 'power', 'raise', 'return',
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'sequence-types', 'shifting', 'slicings', 'specialattrs', 'specialnames',
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'string-methods', 'strings', 'subscriptions', 'truth', 'try', 'types',
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'typesfunctions', 'typesmapping', 'typesmethods', 'typesmodules',
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'typesseq', 'typesseq-mutable', 'unary', 'while', 'with', 'yield'
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]
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class PydocTopicsBuilder(Builder):
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name = 'pydoc-topics'
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default_translator_class = TextTranslator
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def init(self):
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self.topics = {}
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self.secnumbers = {}
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def get_outdated_docs(self):
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return 'all pydoc topics'
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def get_target_uri(self, docname, typ=None):
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return '' # no URIs
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def write(self, *ignored):
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writer = TextWriter(self)
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for label in status_iterator(pydoc_topic_labels,
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'building topics... ',
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length=len(pydoc_topic_labels)):
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if label not in self.env.domaindata['std']['labels']:
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self.warn('label %r not in documentation' % label)
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continue
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docname, labelid, sectname = self.env.domaindata['std']['labels'][label]
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doctree = self.env.get_and_resolve_doctree(docname, self)
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document = new_document('<section node>')
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document.append(doctree.ids[labelid])
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destination = StringOutput(encoding='utf-8')
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writer.write(document, destination)
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self.topics[label] = writer.output
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def finish(self):
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f = open(path.join(self.outdir, 'topics.py'), 'wb')
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try:
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f.write('# -*- coding: utf-8 -*-\n'.encode('utf-8'))
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f.write(('# Autogenerated by Sphinx on %s\n' % asctime()).encode('utf-8'))
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f.write(('topics = ' + pformat(self.topics) + '\n').encode('utf-8'))
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finally:
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f.close()
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# Support for documenting Opcodes
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opcode_sig_re = re.compile(r'(\w+(?:\+\d)?)(?:\s*\((.*)\))?')
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def parse_opcode_signature(env, sig, signode):
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"""Transform an opcode signature into RST nodes."""
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m = opcode_sig_re.match(sig)
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if m is None:
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raise ValueError
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opname, arglist = m.groups()
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signode += addnodes.desc_name(opname, opname)
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if arglist is not None:
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paramlist = addnodes.desc_parameterlist()
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signode += paramlist
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paramlist += addnodes.desc_parameter(arglist, arglist)
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return opname.strip()
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# Support for documenting pdb commands
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pdbcmd_sig_re = re.compile(r'([a-z()!]+)\s*(.*)')
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# later...
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# pdbargs_tokens_re = re.compile(r'''[a-zA-Z]+ | # identifiers
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# [.,:]+ | # punctuation
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# [\[\]()] | # parens
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# \s+ # whitespace
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# ''', re.X)
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def parse_pdb_command(env, sig, signode):
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"""Transform a pdb command signature into RST nodes."""
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m = pdbcmd_sig_re.match(sig)
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if m is None:
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raise ValueError
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name, args = m.groups()
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fullname = name.replace('(', '').replace(')', '')
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signode += addnodes.desc_name(name, name)
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if args:
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signode += addnodes.desc_addname(' '+args, ' '+args)
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return fullname
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def setup(app):
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app.add_role('issue', issue_role)
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app.add_role('source', source_role)
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app.add_directive('impl-detail', ImplementationDetail)
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app.add_directive('availability', Availability)
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app.add_directive('deprecated-removed', DeprecatedRemoved)
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app.add_builder(PydocTopicsBuilder)
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app.add_builder(suspicious.CheckSuspiciousMarkupBuilder)
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app.add_object_type('opcode', 'opcode', '%s (opcode)', parse_opcode_signature)
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app.add_object_type('pdbcommand', 'pdbcmd', '%s (pdb command)', parse_pdb_command)
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app.add_object_type('2to3fixer', '2to3fixer', '%s (2to3 fixer)')
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app.add_directive_to_domain('py', 'decorator', PyDecoratorFunction)
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app.add_directive_to_domain('py', 'decoratormethod', PyDecoratorMethod)
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app.add_directive_to_domain('py', 'coroutinefunction', PyCoroutineFunction)
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app.add_directive_to_domain('py', 'coroutinemethod', PyCoroutineMethod)
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app.add_directive_to_domain('py', 'awaitablefunction', PyAwaitableFunction)
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app.add_directive_to_domain('py', 'awaitablemethod', PyAwaitableMethod)
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app.add_directive_to_domain('py', 'abstractmethod', PyAbstractMethod)
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app.add_directive('miscnews', MiscNews)
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return {'version': '1.0', 'parallel_read_safe': True}
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