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# -*- coding: utf-8 -*-
"""
pygments.sphinxext
~~~~~~~~~~~~~~~~~~
Sphinx extension to generate automatic documentation of lexers,
formatters and filters.
:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from __future__ import print_function
import sys
from docutils import nodes
from docutils.statemachine import ViewList
from sphinx.util.compat import Directive
from sphinx.util.nodes import nested_parse_with_titles
MODULEDOC = '''
.. module:: %s
%s
%s
'''
LEXERDOC = '''
.. class:: %s
:Short names: %s
:Filenames: %s
:MIME types: %s
%s
'''
FMTERDOC = '''
.. class:: %s
:Short names: %s
:Filenames: %s
%s
'''
FILTERDOC = '''
.. class:: %s
:Name: %s
%s
'''
class PygmentsDoc(Directive):
"""
A directive to collect all lexers/formatters/filters and generate
autoclass directives for them.
"""
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
option_spec = {}
def run(self):
self.filenames = set()
if self.arguments[0] == 'lexers':
out = self.document_lexers()
elif self.arguments[0] == 'formatters':
out = self.document_formatters()
elif self.arguments[0] == 'filters':
out = self.document_filters()
else:
raise Exception('invalid argument for "pygmentsdoc" directive')
node = nodes.compound()
vl = ViewList(out.split('\n'), source='')
nested_parse_with_titles(self.state, vl, node)
for fn in self.filenames:
self.state.document.settings.record_dependencies.add(fn)
return node.children
def document_lexers(self):
from pygments.lexers._mapping import LEXERS
out = []
modules = {}
moduledocstrings = {}
for classname, data in sorted(LEXERS.items(), key=lambda x: x[0]):
module = data[0]
mod = __import__(module, None, None, [classname])
self.filenames.add(mod.__file__)
cls = getattr(mod, classname)
if not cls.__doc__:
print("Warning: %s does not have a docstring." % classname)
docstring = cls.__doc__
if isinstance(docstring, bytes):
docstring = docstring.decode('utf8')
modules.setdefault(module, []).append((
classname,
', '.join(data[2]) or 'None',
', '.join(data[3]).replace('*', '\\*').replace('_', '\\') or 'None',
', '.join(data[4]) or 'None',
docstring))
if module not in moduledocstrings:
moddoc = mod.__doc__
if isinstance(moddoc, bytes):
moddoc = moddoc.decode('utf8')
moduledocstrings[module] = moddoc
for module, lexers in sorted(modules.items(), key=lambda x: x[0]):
if moduledocstrings[module] is None:
raise Exception("Missing docstring for %s" % (module,))
heading = moduledocstrings[module].splitlines()[4].strip().rstrip('.')
out.append(MODULEDOC % (module, heading, '-'*len(heading)))
for data in lexers:
out.append(LEXERDOC % data)
return ''.join(out)
def document_formatters(self):
from pygments.formatters import FORMATTERS
out = []
for classname, data in sorted(FORMATTERS.items(), key=lambda x: x[0]):
module = data[0]
mod = __import__(module, None, None, [classname])
self.filenames.add(mod.__file__)
cls = getattr(mod, classname)
docstring = cls.__doc__
if isinstance(docstring, bytes):
docstring = docstring.decode('utf8')
heading = cls.__name__
out.append(FMTERDOC % (heading, ', '.join(data[2]) or 'None',
', '.join(data[3]).replace('*', '\\*') or 'None',
docstring))
return ''.join(out)
def document_filters(self):
from pygments.filters import FILTERS
out = []
for name, cls in FILTERS.items():
self.filenames.add(sys.modules[cls.__module__].__file__)
docstring = cls.__doc__
if isinstance(docstring, bytes):
docstring = docstring.decode('utf8')
out.append(FILTERDOC % (cls.__name__, name, docstring))
return ''.join(out)
def setup(app):
app.add_directive('pygmentsdoc', PygmentsDoc)
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