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"""
Sphinx/docutils extension to create links to pyDoctor documentation using a
RestructuredText interpreted text role that looks like this::
:api:`python_object_to_link_to <label>`
for example::
:api:`twisted.internet.defer.Deferred <Deferred>`
"""
from twisted.python.reflect import namedAny
from types import FunctionType
def make_api_link(name, rawtext, text, lineno, inliner,
options={}, content=[]):
from docutils import nodes, utils
# quick, dirty, and ugly...
if '<' in text and '>' in text:
full_name, label = text.split('<')
full_name = full_name.strip()
label = label.strip('>').strip()
else:
full_name = label = text
#get the base url for api links from the config file
env = inliner.document.settings.env
if full_name.startswith("twisted"):
base_url = env.config.apilinks_base_url
else:
base_url = "https://twisted.org/tubes/docs/"
# not really sufficient, but just testing...
# ...hmmm, maybe this is good enough after all
try:
consider = namedAny(full_name)
except:
consider = None
if isinstance(consider, (type(None), FunctionType)):
dot_path, fragment = full_name.rsplit(".", 1)
if fragment:
fragment = "#" + fragment
else:
dot_path = full_name
fragment = ""
ref = ''.join((base_url, dot_path, '.html', fragment))
options.update(classes=["api"])
node = nodes.reference(rawtext, utils.unescape(label), refuri=ref,
**options)
nodes = [node]
sys_msgs = []
return nodes, sys_msgs
# setup function to register the extension
def setup(app):
app.add_config_value('apilinks_base_url',
'https://twistedmatrix.com/documents/current/api/',
'env')
app.add_role('api', make_api_link)
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