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naoqi.py
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naoqi.py
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# coding=utf-8
"""
Sphinx domain for documenting NAOqi-specific concepts such as events, memory
keys and modules.
This domain heavily borrows from the C one.
Oddities:
- variables (memory keys and event data) types link back to the corresponding
cpp type.
Limitations:
- event signature parsing is rudimentary. It should be enough though.
- permalink to events are similar to the C ones: no support for overload.
"""
__author__ = (u"Sébastien BARTHÉLEMY <sbarthelemy@aldebaran-robotics.com>")
__copyright__ = u"Copyright (C) 2011, 2012 Aldebaran Robotics"
import re
import string
import sphinx
from docutils import nodes
from sphinx import addnodes
from sphinx.util.docfields import DocFieldTransformer
from sphinx.locale import l_, _
from sphinx.domains import ObjType, Index
from sphinx.util.docfields import TypedField
from sphinx.roles import XRefRole
from sphinx.util.nodes import make_refnode
# REs for signatures
memkey_sig_re = re.compile(
r'''^([a-zA-Z0-9_:<>]*)\s+ # type
([a-zA-Z0-9_:/<>]*)\s*$ # name
''', re.VERBOSE)
event_sig_re = re.compile(
r'''^([a-zA-Z0-9_:/<>]+) \s* # name
(?: \((.*)\) )?$ # optionally arguments
''', re.VERBOSE)
wsplit_re = re.compile(r'([^a-zA-Z0-9_:]+)')
stopwords = set(('const', 'void', 'FILE', 'struct'))
def _parse_type(node, argtype):
# add cross-ref nodes for all words
for part in filter(None, wsplit_re.split(argtype)):
tnode = nodes.Text(part, part)
if part[0] in string.ascii_letters+'_'+':' and \
part not in stopwords:
pnode = sphinx.addnodes.pending_xref(
'', refdomain='cpp', reftype='type', reftarget=part,
modname=None, classname=None)
pnode += tnode
node += pnode
else:
node += tnode
class NaoQiObject(sphinx.directives.ObjectDescription):
def add_target_and_index(self, name, sig, signode):
signode['ids'].append(name)
self.state.document.note_explicit_target(signode)
inv = self.env.domaindata['naoqi'][self.objtype]
if name in inv:
msg = 'duplicate NAOqi {0} description of {1}, other instance ' \
'in {2}'.format(self.objtype, name,
self.env.doc2path(inv[name]))
self.env.warn(self.env.docname, msg, self.lineno)
inv[name] = self.env.docname
indextext = u"{0} ({1})".format(name, self.objtype_pretty)
self.indexnode['entries'].append(('single', indextext, name, name))
class NaoQiMemKey(NaoQiObject):
objtype_pretty = u"ALMemory key"
def handle_signature(self, sig, signode):
"""
Transform a memory key signature into RST nodes.
Returns the name of the event
"""
m = memkey_sig_re.match(sig)
if m is None:
raise ValueError
type, name = m.groups()
signode += addnodes.desc_type('', '')
_parse_type(signode[-1], type)
#_parse_type(signode, type)
signode += nodes.Text(" ")
signode += sphinx.addnodes.desc_name(name, name)
return name
class NaoQiEvent(NaoQiObject):
objtype_pretty = u"NAOqi event"
doc_field_types = [
TypedField('parameter', label=l_('Parameters'),
names=('param', 'parameter', 'arg', 'argument'),
typerolename='type', typenames=('type',)),
]
def handle_signature(self, sig, signode):
"""
Transform an event signature into RST nodes.
Returns the name of the event
"""
m = event_sig_re.match(sig)
if m is None:
# todo: add warning
raise ValueError
(name, arglist) = m.groups()
line0 = nodes.line('', u"Event: ")
line0 += sphinx.addnodes.desc_name(name, '"' + name + '"')
if arglist is None:
return name
signode += line0
signode += nodes.Text(u'callback')
paramlist = addnodes.desc_parameterlist()
arglist = arglist.replace('`', '').replace('\\ ', '') # remove markup
args = arglist.split(',')
args.insert(0, u'std::string eventName')
args.append(u'std::string subscriberIdentifier')
for arg in args:
arg = arg.strip()
if not arg:
continue
param = addnodes.desc_parameter('', '', noemph=True)
try:
argtype, argname = arg.rsplit(' ', 1)
except ValueError:
# no argument name given, only the type
argtype = arg
_parse_type(param, argtype)
else:
_parse_type(param, argtype)
param += nodes.emphasis(argname, ' '+argname)
paramlist += param
signode += paramlist
return name
def run(self):
"""
Main directive entry function, called by docutils upon encountering the
directive.
This directive is meant to be quite easily subclassable, so it delegates
to several additional methods. What it does:
* find out if called as a domain-specific directive, set self.domain
* create a `desc` node to fit all description inside
* parse standard options, currently `noindex`
* create an index node if needed as self.indexnode
* parse all given signatures (as returned by self.get_signatures())
using self.handle_signature(), which should either return a name
or raise ValueError
* add index entries using self.add_target_and_index()
* parse the content and handle doc fields in it
This method was copied and adapted from
sphinx.directive.ObjectDescription.run() (in Sphinx 1.1)
"""
if ':' in self.name:
self.domain, self.objtype = self.name.split(':', 1)
else:
self.domain, self.objtype = '', self.name
self.env = self.state.document.settings.env
self.indexnode = addnodes.index(entries=[])
node = addnodes.desc()
node.document = self.state.document
node['domain'] = self.domain
# 'desctype' is a backwards compatible attribute
node['objtype'] = node['desctype'] = self.objtype
node['noindex'] = noindex = ('noindex' in self.options)
self.names = []
signatures = self.get_signatures()
name = None
for i, sig in enumerate(signatures):
# add a signature node for each signature in the current unit
# and add a reference target for it
signode = addnodes.desc_signature(sig, '')
signode['first'] = False
node.append(signode)
try:
# name can also be a tuple, e.g. (classname, objname);
# this is strictly domain-specific (i.e. no assumptions may
# be made in this base class)
name = self.handle_signature(sig, signode)
except ValueError:
# signature parsing failed
signode.clear()
signode += addnodes.desc_name(sig, sig)
continue # we don't want an index entry here
if not noindex and name is not None and name not in self.names:
# only add target and index entry if this is the first
# description of the object with this name in this desc block
self.names.append(name)
self.add_target_and_index(name, sig, signode)
contentnode = addnodes.desc_content()
node.append(contentnode)
if self.names:
# needed for association of version{added,changed} directives
self.env.temp_data['object'] = self.names[0]
self.before_content()
self.state.nested_parse(self.content, self.content_offset, contentnode)
for child in contentnode:
if isinstance(child, nodes.field_list):
child.insert(0, nodes.field('',
nodes.field_name('', u'param std::string eventName'),
nodes.field_body('', nodes.paragraph('', u'"{0}"'.format(name)))))
child.append(nodes.field('',
nodes.field_name('', u'param std::string subscriberIdentifier'),
nodes.field_body('', nodes.paragraph('', u''))))
DocFieldTransformer(self).transform_all(contentnode)
self.env.temp_data['object'] = None
self.after_content()
return [self.indexnode, node]
class NAOqiIndex(Index):
"""
Index subclass to provide the Python module index.
"""
def generate(self, docnames=None):
# entries = content.setdefault("l", [])
# entries.append(["LogManager", 1, '', '', '', '', ''])
# entries.append(["LogManager.logError", 2, 'logmanager', 'logWarning', '', '', ''])
# entries.append(["LogManager.logWarning", 2, 'logmanager', 'logError', '', '', ''])
content = {}
for ev, modname in sorted(self.domain.data[self._data].iteritems()):
entries = content.setdefault(ev[0].lower(), [])
entries.append([ev, 2, modname, ev, '', '', ''])
# sort by first letter
result = sorted(content.iteritems())
collapse = False
return result, collapse
class NAOqiEventIndex(NAOqiIndex):
name = 'eventindex'
localname = l_('NAOqi Event Index')
shortname = l_('events')
_data = 'event'
class NAOqiMemoryIndex(NAOqiIndex):
name = 'memoryindex'
localname = l_('NAOqi Memory Key Index')
shortname = l_('memorykeys')
_data = 'memkey'
class NaoQiDomain(sphinx.domains.Domain):
name = 'naoqi'
label = 'NAOqi'
object_types = {
'event': ObjType(l_('event'), 'event'),
'memkey': ObjType(l_('memory key'), 'memkey'),
}
directives = {
'event': NaoQiEvent,
'memkey': NaoQiMemKey,
}
roles = {
'event': XRefRole(fix_parens=True),
'memkey': XRefRole(),
}
initial_data = {
'event': {}, # fullname -> docname
'memkey': {}, # fullname -> docname
}
indices = [
NAOqiEventIndex,
NAOqiMemoryIndex,
]
def clear_doc(self, docname):
for objtype in (u'event', u'memkey'):
for (objname, objdocname) in self.data[objtype].items():
if objdocname == docname:
del self.data[objtype][objname]
def resolve_xref(self, env, fromdocname, builder,
typ, target, node, contnode):
try:
todocname = self.data[typ][target]
except KeyError:
return None
return make_refnode(builder, fromdocname, todocname, target,
contnode, target)
def setup(app):
app.add_domain(NaoQiDomain)