/usr/lib/python2.7/dist-packages/sphinxarg/ext.py is in python-sphinx-argparse 0.1.15-1.
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import os
from docutils import nodes
from docutils.statemachine import StringList
from docutils.parsers.rst.directives import flag, unchanged
from sphinx.util.compat import Directive
from sphinx.util.nodes import nested_parse_with_titles
from sphinxarg.parser import parse_parser, parser_navigate
def map_nested_definitions(nested_content):
if nested_content is None:
raise Exception('Nested content should be iterable, not null')
# build definition dictionary
definitions = {}
for item in nested_content:
if not isinstance(item, nodes.definition_list):
continue
for subitem in item:
if not isinstance(subitem, nodes.definition_list_item):
continue
if not len(subitem.children) > 0:
continue
classifier = '@after'
idx = subitem.first_child_matching_class(nodes.classifier)
if idx is not None:
ci = subitem[idx]
if len(ci.children) > 0:
classifier = ci.children[0].astext()
if classifier is not None and classifier not in (
'@replace', '@before', '@after'):
raise Exception('Unknown classifier: %s' % classifier)
idx = subitem.first_child_matching_class(nodes.term)
if idx is not None:
ch = subitem[idx]
if len(ch.children) > 0:
term = ch.children[0].astext()
idx = subitem.first_child_matching_class(nodes.definition)
if idx is not None:
def_node = subitem[idx]
def_node.attributes['classifier'] = classifier
definitions[term] = def_node
return definitions
def print_arg_list(data, nested_content):
definitions = map_nested_definitions(nested_content)
items = []
if 'args' in data:
for arg in data['args']:
my_def = [nodes.paragraph(text=arg['help'])] if arg['help'] else []
name = arg['name']
my_def = apply_definition(definitions, my_def, name)
if len(my_def) == 0:
my_def.append(nodes.paragraph(text='Undocumented'))
if 'choices' in arg:
my_def.append(nodes.paragraph(
text=('Possible choices: %s' % ', '.join([str(c) for c in arg['choices']]))))
items.append(
nodes.option_list_item(
'', nodes.option_group('', nodes.option_string(text=name)),
nodes.description('', *my_def)))
return nodes.option_list('', *items) if items else None
def print_opt_list(data, nested_content):
definitions = map_nested_definitions(nested_content)
items = []
if 'options' in data:
for opt in data['options']:
names = []
my_def = [nodes.paragraph(text=opt['help'])] if opt['help'] else []
for name in opt['name']:
option_declaration = [nodes.option_string(text=name)]
if opt['default'] is not None \
and opt['default'] != '==SUPPRESS==':
option_declaration += nodes.option_argument(
'', text='=' + str(opt['default']))
names.append(nodes.option('', *option_declaration))
my_def = apply_definition(definitions, my_def, name)
if len(my_def) == 0:
my_def.append(nodes.paragraph(text='Undocumented'))
if 'choices' in opt:
my_def.append(nodes.paragraph(
text=('Possible choices: %s' % ', '.join([str(c) for c in opt['choices']]))))
items.append(
nodes.option_list_item(
'', nodes.option_group('', *names),
nodes.description('', *my_def)))
return nodes.option_list('', *items) if items else None
def print_command_args_and_opts(arg_list, opt_list, sub_list=None):
items = []
if arg_list:
items.append(nodes.definition_list_item(
'', nodes.term(text='Positional arguments:'),
nodes.definition('', arg_list)))
if opt_list:
items.append(nodes.definition_list_item(
'', nodes.term(text='Options:'),
nodes.definition('', opt_list)))
if sub_list and len(sub_list):
items.append(nodes.definition_list_item(
'', nodes.term(text='Sub-commands:'),
nodes.definition('', sub_list)))
return nodes.definition_list('', *items)
def apply_definition(definitions, my_def, name):
if name in definitions:
definition = definitions[name]
classifier = definition['classifier']
if classifier == '@replace':
return definition.children
if classifier == '@after':
return my_def + definition.children
if classifier == '@before':
return definition.children + my_def
raise Exception('Unknown classifier: %s' % classifier)
return my_def
def print_subcommand_list(data, nested_content):
definitions = map_nested_definitions(nested_content)
items = []
if 'children' in data:
for child in data['children']:
my_def = [nodes.paragraph(
text=child['help'])] if child['help'] else []
name = child['name']
my_def = apply_definition(definitions, my_def, name)
if len(my_def) == 0:
my_def.append(nodes.paragraph(text='Undocumented'))
if 'description' in child:
my_def.append(nodes.paragraph(text=child['description']))
my_def.append(nodes.literal_block(text=child['usage']))
my_def.append(print_command_args_and_opts(
print_arg_list(child, nested_content),
print_opt_list(child, nested_content),
print_subcommand_list(child, nested_content)
))
items.append(
nodes.definition_list_item(
'',
nodes.term('', '', nodes.strong(text=name)),
nodes.definition('', *my_def)
)
)
return nodes.definition_list('', *items)
class ArgParseDirective(Directive):
has_content = True
option_spec = dict(module=unchanged, func=unchanged, ref=unchanged,
prog=unchanged, path=unchanged, nodefault=flag,
manpage=unchanged, nosubcommands=unchanged, passparser=flag)
def _construct_manpage_specific_structure(self, parser_info):
"""
Construct a typical man page consisting of the following elements:
NAME (automatically generated, out of our control)
SYNOPSIS
DESCRIPTION
OPTIONS
FILES
SEE ALSO
BUGS
"""
# SYNOPSIS section
synopsis_section = nodes.section(
'',
nodes.title(text='Synopsis'),
nodes.literal_block(text=parser_info["bare_usage"]),
ids=['synopsis-section'])
# DESCRIPTION section
description_section = nodes.section(
'',
nodes.title(text='Description'),
nodes.paragraph(text=parser_info.get(
'description', parser_info.get(
'help', "undocumented").capitalize())),
ids=['description-section'])
nested_parse_with_titles(
self.state, self.content, description_section)
if parser_info.get('epilog'):
# TODO: do whatever sphinx does to understand ReST inside
# docstrings magically imported from other places. The nested
# parse method invoked above seem to be able to do this but
# I haven't found a way to do it for arbitrary text
description_section += nodes.paragraph(
text=parser_info['epilog'])
# OPTIONS section
options_section = nodes.section(
'',
nodes.title(text='Options'),
ids=['options-section'])
if 'args' in parser_info:
options_section += nodes.paragraph()
options_section += nodes.subtitle(text='Positional arguments:')
options_section += self._format_positional_arguments(parser_info)
if 'options' in parser_info:
options_section += nodes.paragraph()
options_section += nodes.subtitle(text='Optional arguments:')
options_section += self._format_optional_arguments(parser_info)
items = [
# NOTE: we cannot generate NAME ourselves. It is generated by
# docutils.writers.manpage
synopsis_section,
description_section,
# TODO: files
# TODO: see also
# TODO: bugs
]
if len(options_section.children) > 1:
items.append(options_section)
if 'nosubcommands' not in self.options:
# SUBCOMMANDS section (non-standard)
subcommands_section = nodes.section(
'',
nodes.title(text='Sub-Commands'),
ids=['subcommands-section'])
if 'children' in parser_info:
subcommands_section += self._format_subcommands(parser_info)
if len(subcommands_section) > 1:
items.append(subcommands_section)
if os.getenv("INCLUDE_DEBUG_SECTION"):
import json
# DEBUG section (non-standard)
debug_section = nodes.section(
'',
nodes.title(text="Argparse + Sphinx Debugging"),
nodes.literal_block(text=json.dumps(parser_info, indent=' ')),
ids=['debug-section'])
items.append(debug_section)
return items
def _format_positional_arguments(self, parser_info):
assert 'args' in parser_info
items = []
for arg in parser_info['args']:
arg_items = []
if arg['help']:
arg_items.append(nodes.paragraph(text=arg['help']))
else:
arg_items.append(nodes.paragraph(text='Undocumented'))
if 'choices' in arg:
arg_items.append(
nodes.paragraph(
text='Possible choices: ' + ', '.join(arg['choices'])))
items.append(
nodes.option_list_item(
'',
nodes.option_group(
'', nodes.option(
'', nodes.option_string(text=arg['metavar'])
)
),
nodes.description('', *arg_items)))
return nodes.option_list('', *items)
def _format_optional_arguments(self, parser_info):
assert 'options' in parser_info
items = []
for opt in parser_info['options']:
names = []
opt_items = []
for name in opt['name']:
option_declaration = [nodes.option_string(text=name)]
if opt['default'] is not None \
and opt['default'] != '==SUPPRESS==':
option_declaration += nodes.option_argument(
'', text='=' + str(opt['default']))
names.append(nodes.option('', *option_declaration))
if opt['help']:
opt_items.append(nodes.paragraph(text=opt['help']))
else:
opt_items.append(nodes.paragraph(text='Undocumented'))
if 'choices' in opt:
opt_items.append(
nodes.paragraph(
text='Possible choices: ' + ', '.join(opt['choices'])))
items.append(
nodes.option_list_item(
'', nodes.option_group('', *names),
nodes.description('', *opt_items)))
return nodes.option_list('', *items)
def _format_subcommands(self, parser_info):
assert 'children' in parser_info
items = []
for subcmd in parser_info['children']:
subcmd_items = []
if subcmd['help']:
subcmd_items.append(nodes.paragraph(text=subcmd['help']))
else:
subcmd_items.append(nodes.paragraph(text='Undocumented'))
items.append(
nodes.definition_list_item(
'',
nodes.term('', '', nodes.strong(
text=subcmd['bare_usage'])),
nodes.definition('', *subcmd_items)))
return nodes.definition_list('', *items)
def _nested_parse_paragraph(self, text):
content = nodes.paragraph()
self.state.nested_parse(StringList(text.split("\n")), 0, content)
return content
def run(self):
if 'module' in self.options and 'func' in self.options:
module_name = self.options['module']
attr_name = self.options['func']
elif 'ref' in self.options:
_parts = self.options['ref'].split('.')
module_name = '.'.join(_parts[0:-1])
attr_name = _parts[-1]
else:
raise self.error(
':module: and :func: should be specified, or :ref:')
mod = __import__(module_name, globals(), locals(), [attr_name])
if not hasattr(mod, attr_name):
raise self.error((
'Module "%s" has no attribute "%s"\n'
'Incorrect argparse :module: or :func: values?'
) % (module_name, attr_name))
func = getattr(mod, attr_name)
if isinstance(func, ArgumentParser):
parser = func
elif 'passparser' in self.options:
parser = ArgumentParser()
func(parser)
else:
parser = func()
if 'path' not in self.options:
self.options['path'] = ''
path = str(self.options['path'])
if 'prog' in self.options:
parser.prog = self.options['prog']
result = parse_parser(
parser, skip_default_values='nodefault' in self.options)
result = parser_navigate(result, path)
if 'manpage' in self.options:
return self._construct_manpage_specific_structure(result)
nested_content = nodes.paragraph()
self.state.nested_parse(
self.content, self.content_offset, nested_content)
nested_content = nested_content.children
items = []
# add common content between
for item in nested_content:
if not isinstance(item, nodes.definition_list):
items.append(item)
if 'description' in result:
items.append(self._nested_parse_paragraph(result['description']))
items.append(nodes.literal_block(text=result['usage']))
items.append(print_command_args_and_opts(
print_arg_list(result, nested_content),
print_opt_list(result, nested_content),
print_subcommand_list(result, nested_content)
))
if 'epilog' in result:
items.append(self._nested_parse_paragraph(result['epilog']))
return items
def setup(app):
app.add_directive('argparse', ArgParseDirective)
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