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127 lines
4.2 KiB
127 lines
4.2 KiB
4 years ago
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# $Id: parts.py 7308 2012-01-06 12:08:43Z milde $
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# Authors: David Goodger <goodger@python.org>; Dmitry Jemerov
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# Copyright: This module has been placed in the public domain.
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"""
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Directives for document parts.
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"""
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__docformat__ = 'reStructuredText'
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from docutils import nodes, languages
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from docutils.transforms import parts
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from docutils.parsers.rst import Directive
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from docutils.parsers.rst import directives
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class Contents(Directive):
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"""
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Table of contents.
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The table of contents is generated in two passes: initial parse and
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transform. During the initial parse, a 'pending' element is generated
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which acts as a placeholder, storing the TOC title and any options
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internally. At a later stage in the processing, the 'pending' element is
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replaced by a 'topic' element, a title and the table of contents proper.
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"""
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backlinks_values = ('top', 'entry', 'none')
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def backlinks(arg):
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value = directives.choice(arg, Contents.backlinks_values)
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if value == 'none':
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return None
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else:
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return value
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optional_arguments = 1
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final_argument_whitespace = True
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option_spec = {'depth': directives.nonnegative_int,
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'local': directives.flag,
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'backlinks': backlinks,
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'class': directives.class_option}
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def run(self):
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if not (self.state_machine.match_titles
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or isinstance(self.state_machine.node, nodes.sidebar)):
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raise self.error('The "%s" directive may not be used within '
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'topics or body elements.' % self.name)
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document = self.state_machine.document
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language = languages.get_language(document.settings.language_code,
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document.reporter)
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if self.arguments:
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title_text = self.arguments[0]
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text_nodes, messages = self.state.inline_text(title_text,
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self.lineno)
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title = nodes.title(title_text, '', *text_nodes)
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else:
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messages = []
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if 'local' in self.options:
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title = None
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else:
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title = nodes.title('', language.labels['contents'])
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topic = nodes.topic(classes=['contents'])
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topic['classes'] += self.options.get('class', [])
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# the latex2e writer needs source and line for a warning:
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topic.source, topic.line = self.state_machine.get_source_and_line()
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topic.line -= 1
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if 'local' in self.options:
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topic['classes'].append('local')
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if title:
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name = title.astext()
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topic += title
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else:
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name = language.labels['contents']
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name = nodes.fully_normalize_name(name)
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if not document.has_name(name):
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topic['names'].append(name)
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document.note_implicit_target(topic)
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pending = nodes.pending(parts.Contents, rawsource=self.block_text)
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pending.details.update(self.options)
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document.note_pending(pending)
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topic += pending
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return [topic] + messages
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class Sectnum(Directive):
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"""Automatic section numbering."""
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option_spec = {'depth': int,
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'start': int,
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'prefix': directives.unchanged_required,
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'suffix': directives.unchanged_required}
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def run(self):
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pending = nodes.pending(parts.SectNum)
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pending.details.update(self.options)
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self.state_machine.document.note_pending(pending)
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return [pending]
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class Header(Directive):
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"""Contents of document header."""
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has_content = True
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def run(self):
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self.assert_has_content()
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header = self.state_machine.document.get_decoration().get_header()
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self.state.nested_parse(self.content, self.content_offset, header)
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return []
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class Footer(Directive):
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"""Contents of document footer."""
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has_content = True
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def run(self):
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self.assert_has_content()
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footer = self.state_machine.document.get_decoration().get_footer()
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self.state.nested_parse(self.content, self.content_offset, footer)
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return []
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