/usr/lib/python2.7/dist-packages/sphinx/ext/todo.py is in python-sphinx 1.2.2+dfsg-1ubuntu1.
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"""
sphinx.ext.todo
~~~~~~~~~~~~~~~
Allow todos to be inserted into your documentation. Inclusion of todos can
be switched of by a configuration variable. The todolist directive collects
all todos of your project and lists them along with a backlink to the
original location.
:copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from docutils import nodes
from sphinx.locale import _
from sphinx.environment import NoUri
from sphinx.util.nodes import set_source_info
from sphinx.util.compat import Directive, make_admonition
class todo_node(nodes.Admonition, nodes.Element): pass
class todolist(nodes.General, nodes.Element): pass
class Todo(Directive):
"""
A todo entry, displayed (if configured) in the form of an admonition.
"""
has_content = True
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {}
def run(self):
env = self.state.document.settings.env
targetid = 'index-%s' % env.new_serialno('index')
targetnode = nodes.target('', '', ids=[targetid])
ad = make_admonition(todo_node, self.name, [_('Todo')], self.options,
self.content, self.lineno, self.content_offset,
self.block_text, self.state, self.state_machine)
set_source_info(self, ad[0])
return [targetnode] + ad
def process_todos(app, doctree):
# collect all todos in the environment
# this is not done in the directive itself because it some transformations
# must have already been run, e.g. substitutions
env = app.builder.env
if not hasattr(env, 'todo_all_todos'):
env.todo_all_todos = []
for node in doctree.traverse(todo_node):
try:
targetnode = node.parent[node.parent.index(node) - 1]
if not isinstance(targetnode, nodes.target):
raise IndexError
except IndexError:
targetnode = None
newnode = node.deepcopy()
del newnode['ids']
env.todo_all_todos.append({
'docname': env.docname,
'source': node.source or env.doc2path(env.docname),
'lineno': node.line,
'todo': newnode,
'target': targetnode,
})
class TodoList(Directive):
"""
A list of all todo entries.
"""
has_content = False
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {}
def run(self):
# Simply insert an empty todolist node which will be replaced later
# when process_todo_nodes is called
return [todolist('')]
def process_todo_nodes(app, doctree, fromdocname):
if not app.config['todo_include_todos']:
for node in doctree.traverse(todo_node):
node.parent.remove(node)
# Replace all todolist nodes with a list of the collected todos.
# Augment each todo with a backlink to the original location.
env = app.builder.env
if not hasattr(env, 'todo_all_todos'):
env.todo_all_todos = []
for node in doctree.traverse(todolist):
if not app.config['todo_include_todos']:
node.replace_self([])
continue
content = []
for todo_info in env.todo_all_todos:
para = nodes.paragraph(classes=['todo-source'])
description = _('(The <<original entry>> is located in '
' %s, line %d.)') % \
(todo_info['source'], todo_info['lineno'])
desc1 = description[:description.find('<<')]
desc2 = description[description.find('>>')+2:]
para += nodes.Text(desc1, desc1)
# Create a reference
newnode = nodes.reference('', '', internal=True)
innernode = nodes.emphasis(_('original entry'), _('original entry'))
try:
newnode['refuri'] = app.builder.get_relative_uri(
fromdocname, todo_info['docname'])
newnode['refuri'] += '#' + todo_info['target']['refid']
except NoUri:
# ignore if no URI can be determined, e.g. for LaTeX output
pass
newnode.append(innernode)
para += newnode
para += nodes.Text(desc2, desc2)
# (Recursively) resolve references in the todo content
todo_entry = todo_info['todo']
env.resolve_references(todo_entry, todo_info['docname'],
app.builder)
# Insert into the todolist
content.append(todo_entry)
content.append(para)
node.replace_self(content)
def purge_todos(app, env, docname):
if not hasattr(env, 'todo_all_todos'):
return
env.todo_all_todos = [todo for todo in env.todo_all_todos
if todo['docname'] != docname]
def visit_todo_node(self, node):
self.visit_admonition(node)
def depart_todo_node(self, node):
self.depart_admonition(node)
def setup(app):
app.add_config_value('todo_include_todos', False, 'html')
app.add_node(todolist)
app.add_node(todo_node,
html=(visit_todo_node, depart_todo_node),
latex=(visit_todo_node, depart_todo_node),
text=(visit_todo_node, depart_todo_node),
man=(visit_todo_node, depart_todo_node),
texinfo=(visit_todo_node, depart_todo_node))
app.add_directive('todo', Todo)
app.add_directive('todolist', TodoList)
app.connect('doctree-read', process_todos)
app.connect('doctree-resolved', process_todo_nodes)
app.connect('env-purge-doc', purge_todos)
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