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import sys
from docutils import nodes
from docutils.parsers.rst import roles
def setup(app):
app.add_role('requires-ext', RequiresExtRole(app))
class RequiresExtRole(object):
def __init__(self, app):
self.app = app
def __call__(self, name, rawtext, text, lineno, inliner,
options={}, content=[]):
if text.startswith('rfc'):
rfc_text = text[3:]
rfc_node, rfc_msg = roles.rfc_reference_role(
'rfc', ':rfc:`%s`' % rfc_text, rfc_text, lineno,
inliner, options, content)
if rfc_msg:
# error
return (rfc_node, rfc_msg)
else:
middle_parts = rfc_node + [nodes.Text(" extension",
" extension")]
else:
ext_name = 'gssapi.raw.ext_%s' % text
# autodoc has already imported everything
try:
ext_module = sys.modules[ext_name]
except KeyError:
ext_title = text + " extension"
else:
if ext_module.__doc__:
ext_title = ext_module.__doc__.splitlines()[0]
else:
ext_title = text + " extension"
ref_nodes, ref_messages = self.app.env.domains['py'].role('mod')(
'mod', rawtext, ext_name, lineno, inliner)
if ref_messages:
# error
return (ref_nodes, ref_messages)
title_node = nodes.Text(ext_title, ext_title)
ref_nodes[0].clear()
ref_nodes[0].append(title_node)
middle_parts = ref_nodes
begin_text = nodes.Text("requires the ", "requires the ")
main_nodes = [begin_text] + middle_parts
wrapper_node = nodes.emphasis('', '', *main_nodes)
return ([nodes.Text('', ''), wrapper_node, nodes.Text('', '')], [])
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