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# Author: David Goodger, Dmitry Jemerov
# Contact: goodger@users.sourceforge.net
# Revision: $Revision$
# Date: $Date$
# Copyright: This module has been placed in the public domain.
"""
Directives for document parts.
"""
__docformat__ = 'reStructuredText'
from docutils import nodes, languages
from docutils.transforms import parts
from docutils.parsers.rst import directives
backlinks_values = ('top', 'entry', 'none')
def backlinks(arg):
value = directives.choice(arg, backlinks_values)
if value == 'none':
return None
else:
return value
def contents(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""
Table of contents.
The table of contents is generated in two passes: initial parse and
transform. During the initial parse, a 'pending' element is generated
which acts as a placeholder, storing the TOC title and any options
internally. At a later stage in the processing, the 'pending' element is
replaced by a 'topic' element, a title and the table of contents proper.
"""
if not (state_machine.match_titles
or isinstance(state_machine.node, nodes.sidebar)):
error = state_machine.reporter.error(
'The "%s" directive may not be used within topics '
'or body elements.' % name,
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
document = state_machine.document
language = languages.get_language(document.settings.language_code)
if arguments:
title_text = arguments[0]
text_nodes, messages = state.inline_text(title_text, lineno)
title = nodes.title(title_text, '', *text_nodes)
else:
messages = []
if options.has_key('local'):
title = None
else:
title = nodes.title('', language.labels['contents'])
topic = nodes.topic(classes=['contents'])
topic['classes'] += options.get('class', [])
if options.has_key('local'):
topic['classes'].append('local')
if title:
name = title.astext()
topic += title
else:
name = language.labels['contents']
name = nodes.fully_normalize_name(name)
if not document.has_name(name):
topic['names'].append(name)
document.note_implicit_target(topic)
pending = nodes.pending(parts.Contents, rawsource=block_text)
pending.details.update(options)
document.note_pending(pending)
topic += pending
return [topic] + messages
contents.arguments = (0, 1, 1)
contents.options = {'depth': directives.nonnegative_int,
'local': directives.flag,
'backlinks': backlinks,
'class': directives.class_option}
def sectnum(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""Automatic section numbering."""
pending = nodes.pending(parts.SectNum)
pending.details.update(options)
state_machine.document.note_pending(pending)
return [pending]
sectnum.options = {'depth': int,
'start': int,
'prefix': directives.unchanged_required,
'suffix': directives.unchanged_required}
def header_footer(node, name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""Contents of document header or footer."""
if not content:
warning = state_machine.reporter.warning(
'Content block expected for the "%s" directive; none found.'
% name, nodes.literal_block(block_text, block_text),
line=lineno)
node.append(nodes.paragraph(
'', 'Problem with the "%s" directive: no content supplied.' % name))
return [warning]
text = '\n'.join(content)
state.nested_parse(content, content_offset, node)
return []
def header(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
decoration = state_machine.document.get_decoration()
node = decoration.get_header()
return header_footer(node, name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine)
header.content = 1
def footer(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
decoration = state_machine.document.get_decoration()
node = decoration.get_footer()
return header_footer(node, name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine)
footer.content = 1
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