/usr/lib/python2.7/dist-packages/sphinx/domains/std.py is in python-sphinx 1.2.2+dfsg-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 | # -*- coding: utf-8 -*-
"""
sphinx.domains.std
~~~~~~~~~~~~~~~~~~
The standard domain.
:copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
import unicodedata
from docutils import nodes
from docutils.parsers.rst import directives
from docutils.statemachine import ViewList
from sphinx import addnodes
from sphinx.roles import XRefRole
from sphinx.locale import l_, _
from sphinx.domains import Domain, ObjType
from sphinx.directives import ObjectDescription
from sphinx.util import ws_re
from sphinx.util.nodes import clean_astext, make_refnode
from sphinx.util.compat import Directive
# RE for option descriptions
option_desc_re = re.compile(r'((?:/|-|--)?[-_a-zA-Z0-9]+)(\s*.*)')
class GenericObject(ObjectDescription):
"""
A generic x-ref directive registered with Sphinx.add_object_type().
"""
indextemplate = ''
parse_node = None
def handle_signature(self, sig, signode):
if self.parse_node:
name = self.parse_node(self.env, sig, signode)
else:
signode.clear()
signode += addnodes.desc_name(sig, sig)
# normalize whitespace like XRefRole does
name = ws_re.sub('', sig)
return name
def add_target_and_index(self, name, sig, signode):
targetname = '%s-%s' % (self.objtype, name)
signode['ids'].append(targetname)
self.state.document.note_explicit_target(signode)
if self.indextemplate:
colon = self.indextemplate.find(':')
if colon != -1:
indextype = self.indextemplate[:colon].strip()
indexentry = self.indextemplate[colon+1:].strip() % (name,)
else:
indextype = 'single'
indexentry = self.indextemplate % (name,)
self.indexnode['entries'].append((indextype, indexentry,
targetname, ''))
self.env.domaindata['std']['objects'][self.objtype, name] = \
self.env.docname, targetname
class EnvVar(GenericObject):
indextemplate = l_('environment variable; %s')
class EnvVarXRefRole(XRefRole):
"""
Cross-referencing role for environment variables (adds an index entry).
"""
def result_nodes(self, document, env, node, is_ref):
if not is_ref:
return [node], []
varname = node['reftarget']
tgtid = 'index-%s' % env.new_serialno('index')
indexnode = addnodes.index()
indexnode['entries'] = [
('single', varname, tgtid, ''),
('single', _('environment variable; %s') % varname, tgtid, '')
]
targetnode = nodes.target('', '', ids=[tgtid])
document.note_explicit_target(targetnode)
return [indexnode, targetnode, node], []
class Target(Directive):
"""
Generic target for user-defined cross-reference types.
"""
indextemplate = ''
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
option_spec = {}
def run(self):
env = self.state.document.settings.env
# normalize whitespace in fullname like XRefRole does
fullname = ws_re.sub(' ', self.arguments[0].strip())
targetname = '%s-%s' % (self.name, fullname)
node = nodes.target('', '', ids=[targetname])
self.state.document.note_explicit_target(node)
ret = [node]
if self.indextemplate:
indexentry = self.indextemplate % (fullname,)
indextype = 'single'
colon = indexentry.find(':')
if colon != -1:
indextype = indexentry[:colon].strip()
indexentry = indexentry[colon+1:].strip()
inode = addnodes.index(entries=[(indextype, indexentry,
targetname, '')])
ret.insert(0, inode)
name = self.name
if ':' in self.name:
_, name = self.name.split(':', 1)
env.domaindata['std']['objects'][name, fullname] = \
env.docname, targetname
return ret
class Cmdoption(ObjectDescription):
"""
Description of a command-line option (.. option).
"""
def handle_signature(self, sig, signode):
"""Transform an option description into RST nodes."""
count = 0
firstname = ''
for potential_option in sig.split(', '):
potential_option = potential_option.strip()
m = option_desc_re.match(potential_option)
if not m:
self.env.warn(
self.env.docname,
'Malformed option description %r, should '
'look like "opt", "-opt args", "--opt args" or '
'"/opt args"' % potential_option, self.lineno)
continue
optname, args = m.groups()
if count:
signode += addnodes.desc_addname(', ', ', ')
signode += addnodes.desc_name(optname, optname)
signode += addnodes.desc_addname(args, args)
if not count:
firstname = optname
signode['allnames'] = [optname]
else:
signode['allnames'].append(optname)
count += 1
if not firstname:
raise ValueError
return firstname
def add_target_and_index(self, firstname, sig, signode):
currprogram = self.env.temp_data.get('std:program')
for optname in signode.get('allnames', []):
targetname = optname.replace('/', '-')
if not targetname.startswith('-'):
targetname = '-arg-' + targetname
if currprogram:
targetname = '-' + currprogram + targetname
targetname = 'cmdoption' + targetname
signode['ids'].append(targetname)
self.state.document.note_explicit_target(signode)
self.env.domaindata['std']['progoptions'][currprogram, optname] = \
self.env.docname, targetname
# create only one index entry for the whole option
if optname == firstname:
self.indexnode['entries'].append(
('pair', _('%scommand line option; %s') %
((currprogram and currprogram + ' ' or ''), sig),
targetname, ''))
class Program(Directive):
"""
Directive to name the program for which options are documented.
"""
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
option_spec = {}
def run(self):
env = self.state.document.settings.env
program = ws_re.sub('-', self.arguments[0].strip())
if program == 'None':
env.temp_data['std:program'] = None
else:
env.temp_data['std:program'] = program
return []
class OptionXRefRole(XRefRole):
innernodeclass = addnodes.literal_emphasis
def _split(self, text, refnode, env):
try:
program, target = re.split(' (?=-|--|/)', text, 1)
except ValueError:
env.warn_node('Malformed :option: %r, does not contain option '
'marker - or -- or /' % text, refnode)
return None, text
else:
program = ws_re.sub('-', program)
return program, target
def process_link(self, env, refnode, has_explicit_title, title, target):
program = env.temp_data.get('std:program')
if not has_explicit_title:
if ' ' in title and not (title.startswith('/') or
title.startswith('-')):
program, target = self._split(title, refnode, env)
target = target.strip()
elif ' ' in target:
program, target = self._split(target, refnode, env)
refnode['refprogram'] = program
return title, target
def make_termnodes_from_paragraph_node(env, node, new_id=None):
gloss_entries = env.temp_data.setdefault('gloss_entries', set())
objects = env.domaindata['std']['objects']
termtext = node.astext()
if new_id is None:
new_id = 'term-' + nodes.make_id(termtext)
if new_id in gloss_entries:
new_id = 'term-' + str(len(gloss_entries))
gloss_entries.add(new_id)
objects['term', termtext.lower()] = env.docname, new_id
# add an index entry too
indexnode = addnodes.index()
indexnode['entries'] = [('single', termtext, new_id, 'main')]
new_termnodes = []
new_termnodes.append(indexnode)
new_termnodes.extend(node.children)
new_termnodes.append(addnodes.termsep())
for termnode in new_termnodes:
termnode.source, termnode.line = node.source, node.line
return new_id, termtext, new_termnodes
def make_term_from_paragraph_node(termnodes, ids):
# make a single "term" node with all the terms, separated by termsep
# nodes (remove the dangling trailing separator)
term = nodes.term('', '', *termnodes[:-1])
term.source, term.line = termnodes[0].source, termnodes[0].line
term.rawsource = term.astext()
term['ids'].extend(ids)
term['names'].extend(ids)
return term
class Glossary(Directive):
"""
Directive to create a glossary with cross-reference targets for :term:
roles.
"""
has_content = True
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {
'sorted': directives.flag,
}
def run(self):
env = self.state.document.settings.env
node = addnodes.glossary()
node.document = self.state.document
# This directive implements a custom format of the reST definition list
# that allows multiple lines of terms before the definition. This is
# easy to parse since we know that the contents of the glossary *must
# be* a definition list.
# first, collect single entries
entries = []
in_definition = True
was_empty = True
messages = []
for line, (source, lineno) in zip(self.content, self.content.items):
# empty line -> add to last definition
if not line:
if in_definition and entries:
entries[-1][1].append('', source, lineno)
was_empty = True
continue
# unindented line -> a term
if line and not line[0].isspace():
# enable comments
if line.startswith('.. '):
continue
# first term of definition
if in_definition:
if not was_empty:
messages.append(self.state.reporter.system_message(
2, 'glossary term must be preceded by empty line',
source=source, line=lineno))
entries.append(([(line, source, lineno)], ViewList()))
in_definition = False
# second term and following
else:
if was_empty:
messages.append(self.state.reporter.system_message(
2, 'glossary terms must not be separated by empty '
'lines', source=source, line=lineno))
if entries:
entries[-1][0].append((line, source, lineno))
else:
messages.append(self.state.reporter.system_message(
2, 'glossary seems to be misformatted, check '
'indentation', source=source, line=lineno))
else:
if not in_definition:
# first line of definition, determines indentation
in_definition = True
indent_len = len(line) - len(line.lstrip())
if entries:
entries[-1][1].append(line[indent_len:], source, lineno)
else:
messages.append(self.state.reporter.system_message(
2, 'glossary seems to be misformatted, check '
'indentation', source=source, line=lineno))
was_empty = False
# now, parse all the entries into a big definition list
items = []
for terms, definition in entries:
termtexts = []
termnodes = []
system_messages = []
ids = []
for line, source, lineno in terms:
# parse the term with inline markup
res = self.state.inline_text(line, lineno)
system_messages.extend(res[1])
# get a text-only representation of the term and register it
# as a cross-reference target
tmp = nodes.paragraph('', '', *res[0])
tmp.source = source
tmp.line = lineno
new_id, termtext, new_termnodes = \
make_termnodes_from_paragraph_node(env, tmp)
ids.append(new_id)
termtexts.append(termtext)
termnodes.extend(new_termnodes)
term = make_term_from_paragraph_node(termnodes, ids)
term += system_messages
defnode = nodes.definition()
if definition:
self.state.nested_parse(definition, definition.items[0][1],
defnode)
items.append((termtexts,
nodes.definition_list_item('', term, defnode)))
if 'sorted' in self.options:
items.sort(key=lambda x:
unicodedata.normalize('NFD', x[0][0].lower()))
dlist = nodes.definition_list()
dlist['classes'].append('glossary')
dlist.extend(item[1] for item in items)
node += dlist
return messages + [node]
token_re = re.compile('`(\w+)`', re.U)
def token_xrefs(text):
retnodes = []
pos = 0
for m in token_re.finditer(text):
if m.start() > pos:
txt = text[pos:m.start()]
retnodes.append(nodes.Text(txt, txt))
refnode = addnodes.pending_xref(
m.group(1), reftype='token', refdomain='std', reftarget=m.group(1))
refnode += nodes.literal(m.group(1), m.group(1), classes=['xref'])
retnodes.append(refnode)
pos = m.end()
if pos < len(text):
retnodes.append(nodes.Text(text[pos:], text[pos:]))
return retnodes
class ProductionList(Directive):
"""
Directive to list grammar productions.
"""
has_content = False
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
option_spec = {}
def run(self):
env = self.state.document.settings.env
objects = env.domaindata['std']['objects']
node = addnodes.productionlist()
messages = []
i = 0
for rule in self.arguments[0].split('\n'):
if i == 0 and ':' not in rule:
# production group
continue
i += 1
try:
name, tokens = rule.split(':', 1)
except ValueError:
break
subnode = addnodes.production()
subnode['tokenname'] = name.strip()
if subnode['tokenname']:
idname = 'grammar-token-%s' % subnode['tokenname']
if idname not in self.state.document.ids:
subnode['ids'].append(idname)
self.state.document.note_implicit_target(subnode, subnode)
objects['token', subnode['tokenname']] = env.docname, idname
subnode.extend(token_xrefs(tokens))
node.append(subnode)
return [node] + messages
class StandardDomain(Domain):
"""
Domain for all objects that don't fit into another domain or are added
via the application interface.
"""
name = 'std'
label = 'Default'
object_types = {
'term': ObjType(l_('glossary term'), 'term', searchprio=-1),
'token': ObjType(l_('grammar token'), 'token', searchprio=-1),
'label': ObjType(l_('reference label'), 'ref', 'keyword',
searchprio=-1),
'envvar': ObjType(l_('environment variable'), 'envvar'),
'cmdoption': ObjType(l_('program option'), 'option'),
}
directives = {
'program': Program,
'cmdoption': Cmdoption, # old name for backwards compatibility
'option': Cmdoption,
'envvar': EnvVar,
'glossary': Glossary,
'productionlist': ProductionList,
}
roles = {
'option': OptionXRefRole(innernodeclass=addnodes.literal_emphasis),
'envvar': EnvVarXRefRole(),
# links to tokens in grammar productions
'token': XRefRole(),
# links to terms in glossary
'term': XRefRole(lowercase=True, innernodeclass=nodes.emphasis,
warn_dangling=True),
# links to headings or arbitrary labels
'ref': XRefRole(lowercase=True, innernodeclass=nodes.emphasis,
warn_dangling=True),
# links to labels, without a different title
'keyword': XRefRole(warn_dangling=True),
}
initial_data = {
'progoptions': {}, # (program, name) -> docname, labelid
'objects': {}, # (type, name) -> docname, labelid
'labels': { # labelname -> docname, labelid, sectionname
'genindex': ('genindex', '', l_('Index')),
'modindex': ('py-modindex', '', l_('Module Index')),
'search': ('search', '', l_('Search Page')),
},
'anonlabels': { # labelname -> docname, labelid
'genindex': ('genindex', ''),
'modindex': ('py-modindex', ''),
'search': ('search', ''),
},
}
dangling_warnings = {
'term': 'term not in glossary: %(target)s',
'ref': 'undefined label: %(target)s (if the link has no caption '
'the label must precede a section header)',
'keyword': 'unknown keyword: %(target)s',
}
def clear_doc(self, docname):
for key, (fn, _) in self.data['progoptions'].items():
if fn == docname:
del self.data['progoptions'][key]
for key, (fn, _) in self.data['objects'].items():
if fn == docname:
del self.data['objects'][key]
for key, (fn, _, _) in self.data['labels'].items():
if fn == docname:
del self.data['labels'][key]
for key, (fn, _) in self.data['anonlabels'].items():
if fn == docname:
del self.data['anonlabels'][key]
def process_doc(self, env, docname, document):
labels, anonlabels = self.data['labels'], self.data['anonlabels']
for name, explicit in document.nametypes.iteritems():
if not explicit:
continue
labelid = document.nameids[name]
if labelid is None:
continue
node = document.ids[labelid]
if name.isdigit() or node.has_key('refuri') or \
node.tagname.startswith('desc_'):
# ignore footnote labels, labels automatically generated from a
# link and object descriptions
continue
if name in labels:
env.warn_node('duplicate label %s, ' % name + 'other instance '
'in ' + env.doc2path(labels[name][0]), node)
anonlabels[name] = docname, labelid
if node.tagname == 'section':
sectname = clean_astext(node[0]) # node[0] == title node
elif node.tagname == 'figure':
for n in node:
if n.tagname == 'caption':
sectname = clean_astext(n)
break
else:
continue
elif node.tagname == 'table':
for n in node:
if n.tagname == 'title':
sectname = clean_astext(n)
break
else:
continue
else:
# anonymous-only labels
continue
labels[name] = docname, labelid, sectname
def resolve_xref(self, env, fromdocname, builder,
typ, target, node, contnode):
if typ == 'ref':
if node['refexplicit']:
# reference to anonymous label; the reference uses
# the supplied link caption
docname, labelid = self.data['anonlabels'].get(target, ('',''))
sectname = node.astext()
else:
# reference to named label; the final node will
# contain the section name after the label
docname, labelid, sectname = self.data['labels'].get(target,
('','',''))
if not docname:
return None
newnode = nodes.reference('', '', internal=True)
innernode = nodes.emphasis(sectname, sectname)
if docname == fromdocname:
newnode['refid'] = labelid
else:
# set more info in contnode; in case the
# get_relative_uri call raises NoUri,
# the builder will then have to resolve these
contnode = addnodes.pending_xref('')
contnode['refdocname'] = docname
contnode['refsectname'] = sectname
newnode['refuri'] = builder.get_relative_uri(
fromdocname, docname)
if labelid:
newnode['refuri'] += '#' + labelid
newnode.append(innernode)
return newnode
elif typ == 'keyword':
# keywords are oddballs: they are referenced by named labels
docname, labelid, _ = self.data['labels'].get(target, ('','',''))
if not docname:
return None
return make_refnode(builder, fromdocname, docname,
labelid, contnode)
elif typ == 'option':
progname = node['refprogram']
docname, labelid = self.data['progoptions'].get((progname, target),
('', ''))
if not docname:
return None
return make_refnode(builder, fromdocname, docname,
labelid, contnode)
else:
objtypes = self.objtypes_for_role(typ) or []
for objtype in objtypes:
if (objtype, target) in self.data['objects']:
docname, labelid = self.data['objects'][objtype, target]
break
else:
docname, labelid = '', ''
if not docname:
return None
return make_refnode(builder, fromdocname, docname,
labelid, contnode)
def get_objects(self):
for (prog, option), info in self.data['progoptions'].iteritems():
yield (option, option, 'option', info[0], info[1], 1)
for (type, name), info in self.data['objects'].iteritems():
yield (name, name, type, info[0], info[1],
self.object_types[type].attrs['searchprio'])
for name, info in self.data['labels'].iteritems():
yield (name, info[2], 'label', info[0], info[1], -1)
# add anonymous-only labels as well
non_anon_labels = set(self.data['labels'])
for name, info in self.data['anonlabels'].iteritems():
if name not in non_anon_labels:
yield (name, name, 'label', info[0], info[1], -1)
def get_type_name(self, type, primary=False):
# never prepend "Default"
return type.lname
|