cpython/Doc/tools/sphinxext/pyspecific.py

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# -*- coding: utf-8 -*-
"""
pyspecific.py
~~~~~~~~~~~~~
Sphinx extension with Python doc-specific markup.
:copyright: 2008 by Georg Brandl.
:license: Python license.
"""
ISSUE_URI = 'http://bugs.python.org/issue%s'
from docutils import nodes, utils
# monkey-patch reST parser to disable alphabetic and roman enumerated lists
from docutils.parsers.rst.states import Body
Body.enum.converters['loweralpha'] = \
Body.enum.converters['upperalpha'] = \
Body.enum.converters['lowerroman'] = \
Body.enum.converters['upperroman'] = lambda x: None
def issue_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
issue = utils.unescape(text)
text = 'issue ' + issue
refnode = nodes.reference(text, text, refuri=ISSUE_URI % issue)
return [refnode], []
# Support for building "topic help" for pydoc
pydoc_topic_labels = [
'assert', 'assignment', 'atom-identifiers', 'atom-literals',
'attribute-access', 'attribute-references', 'augassign', 'binary',
'bitwise', 'bltin-code-objects', 'bltin-ellipsis-object',
'bltin-file-objects', 'bltin-null-object', 'bltin-type-objects', 'booleans',
'break', 'callable-types', 'calls', 'class', 'coercion-rules',
'comparisons', 'compound', 'context-managers', 'continue', 'conversions',
'customization', 'debugger', 'del', 'dict', 'dynamic-features', 'else',
'exceptions', 'exec', 'execmodel', 'exprlists', 'floating', 'for',
'formatstrings', 'function', 'global', 'id-classes', 'identifiers', 'if',
'imaginary', 'import', 'in', 'integers', 'lambda', 'lists', 'naming',
'numbers', 'numeric-types', 'objects', 'operator-summary', 'pass', 'power',
'print', 'raise', 'return', 'sequence-methods', 'sequence-types',
'shifting', 'slicings', 'specialattrs', 'specialnames',
'string-conversions', 'string-methods', 'strings', 'subscriptions', 'truth',
'try', 'types', 'typesfunctions', 'typesmapping', 'typesmethods',
'typesmodules', 'typesseq', 'typesseq-mutable', 'unary', 'while', 'with',
'yield'
]
from os import path
from time import asctime
from pprint import pformat
from docutils.io import StringOutput
from docutils.utils import new_document
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from sphinx.builders import Builder
from sphinx.writers.text import TextWriter
class PydocTopicsBuilder(Builder):
name = 'pydoc-topics'
def init(self):
self.topics = {}
def get_outdated_docs(self):
return 'all pydoc topics'
def get_target_uri(self, docname, typ=None):
return '' # no URIs
def write(self, *ignored):
writer = TextWriter(self)
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for label in self.status_iterator(pydoc_topic_labels,
'building topics... ',
length=len(pydoc_topic_labels)):
if label not in self.env.labels:
self.warn('label %r not in documentation' % label)
continue
docname, labelid, sectname = self.env.labels[label]
doctree = self.env.get_and_resolve_doctree(docname, self)
document = new_document('<section node>')
document.append(doctree.ids[labelid])
destination = StringOutput(encoding='utf-8')
writer.write(document, destination)
self.topics[label] = writer.output
def finish(self):
f = open(path.join(self.outdir, 'pydoc_topics.py'), 'w')
try:
f.write('# Autogenerated by Sphinx on %s\n' % asctime())
f.write('topics = ' + pformat(self.topics) + '\n')
finally:
f.close()
# Support for checking for suspicious markup
import suspicious
# Support for documenting Opcodes
import re
from sphinx import addnodes
opcode_sig_re = re.compile(r'(\w+(?:\+\d)?)\s*\((.*)\)')
def parse_opcode_signature(env, sig, signode):
"""Transform an opcode signature into RST nodes."""
m = opcode_sig_re.match(sig)
if m is None:
raise ValueError
opname, arglist = m.groups()
signode += addnodes.desc_name(opname, opname)
paramlist = addnodes.desc_parameterlist()
signode += paramlist
paramlist += addnodes.desc_parameter(arglist, arglist)
return opname.strip()
def setup(app):
app.add_role('issue', issue_role)
app.add_builder(PydocTopicsBuilder)
app.add_builder(suspicious.CheckSuspiciousMarkupBuilder)
app.add_description_unit('opcode', 'opcode', '%s (opcode)',
parse_opcode_signature)
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app.add_description_unit('2to3fixer', '2to3fixer', '%s (2to3 fixer)')