Update of /cvsroot/python/python/nondist/peps/docutils/parsers/rst/directives
In directory usw-pr-cvs1:/tmp/cvs-serv8387/docutils/parsers/rst/directives
Added Files:
.cvsignore __init__.py admonitions.py body.py html.py
images.py misc.py parts.py references.py
Log Message:
local copy of Docutils for PEP processing
--- NEW FILE: .cvsignore ---
*.pyc
--- NEW FILE: __init__.py ---
# Author: David Goodger
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
This package contains directive implementation modules.
The interface for directive functions is as follows::
def directive_fn(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
code...
# Set function attributes:
directive_fn.arguments = ...
directive_fn.options = ...
direcitve_fn.content = ...
Parameters:
- ``name`` is the directive type or name.
- ``arguments`` is a list of positional arguments.
- ``options`` is a dictionary mapping option names to values.
- ``content`` is a list of strings, the directive content.
- ``lineno`` is the line number of the first line of the directive.
- ``content_offset`` is the line offset of the first line of the content from
the beginning of the current input. Used when initiating a nested parse.
- ``block_text`` is a string containing the entire directive. Include it as
the content of a literal block in a system message if there is a problem.
- ``state`` is the state which called the directive function.
- ``state_machine`` is the state machine which controls the state which called
the directive function.
Function attributes, interpreted by the directive parser (which calls the
directive function):
- ``arguments``: A 3-tuple specifying the expected positional arguments, or
``None`` if the directive has no arguments. The 3 items in the tuple are
``(required, optional, whitespace OK in last argument)``:
1. The number of required arguments.
2. The number of optional arguments.
3. A boolean, indicating if the final argument may contain whitespace.
Arguments are normally single whitespace-separated words. The final
argument may contain whitespace if the third item in the argument spec tuple
is 1/True. If the form of the arguments is more complex, specify only one
argument (either required or optional) and indicate that final whitespace is
OK; the client code must do any context-sensitive parsing.
- ``options``: A dictionary, mapping known option names to conversion
functions such as `int` or `float`. ``None`` or an empty dict implies no
options to parse.
- ``content``: A boolean; true if content is allowed. Client code must handle
the case where content is required but not supplied (an empty content list
will be supplied).
Directive functions return a list of nodes which will be inserted into the
document tree at the point where the directive was encountered (can be an
empty list).
See `Creating reStructuredText Directives`_ for more information.
.. _Creating reStructuredText Directives:
http://docutils.sourceforge.net/spec/howto/rst-directives.html
"""
__docformat__ = 'reStructuredText'
from docutils import nodes
from docutils.parsers.rst.languages import en as _fallback_language_module
_directive_registry = {
'attention': ('admonitions', 'attention'),
'caution': ('admonitions', 'caution'),
'danger': ('admonitions', 'danger'),
'error': ('admonitions', 'error'),
'important': ('admonitions', 'important'),
'note': ('admonitions', 'note'),
'tip': ('admonitions', 'tip'),
'hint': ('admonitions', 'hint'),
'warning': ('admonitions', 'warning'),
'topic': ('body', 'topic'),
'line-block': ('body', 'line_block'),
'parsed-literal': ('body', 'parsed_literal'),
#'questions': ('body', 'question_list'),
'image': ('images', 'image'),
'figure': ('images', 'figure'),
'contents': ('parts', 'contents'),
'sectnum': ('parts', 'sectnum'),
#'footnotes': ('parts', 'footnotes'),
#'citations': ('parts', 'citations'),
'target-notes': ('references', 'target_notes'),
'meta': ('html', 'meta'),
#'imagemap': ('html', 'imagemap'),
'raw': ('misc', 'raw'),
'include': ('misc', 'include'),
'replace': ('misc', 'replace'),
'restructuredtext-test-directive': ('misc', 'directive_test_function'),}
"""Mapping of directive name to (module name, function name). The directive
name is canonical & must be lowercase. Language-dependent names are defined
in the ``language`` subpackage."""
_modules = {}
"""Cache of imported directive modules."""
_directives = {}
"""Cache of imported directive functions."""
def directive(directive_name, language_module, document):
"""
Locate and return a directive function from its language-dependent name.
If not found in the current language, check English.
"""
normname = directive_name.lower()
messages = []
if _directives.has_key(normname):
return _directives[normname], messages
try:
canonicalname = language_module.directives[normname]
except (KeyError, AttributeError):
msg_text = ('No directive entry for "%s" in module "%s".'
% (directive_name, language_module.__name__))
try:
canonicalname = _fallback_language_module.directives[normname]
msg_text += ('\nUsing English fallback for directive "%s".'
% directive_name)
except KeyError:
msg_text += ('\nTrying "%s" as canonical directive name.'
% directive_name)
# The canonical name should be an English name, but just in case:
canonicalname = normname
warning = document.reporter.warning(
msg_text, line=document.current_line)
messages.append(warning)
try:
modulename, functionname = _directive_registry[canonicalname]
except KeyError:
return None, messages
if _modules.has_key(modulename):
module = _modules[modulename]
else:
try:
module = __import__(modulename, globals(), locals())
except ImportError:
return None, messages
try:
function = getattr(module, functionname)
_directives[normname] = function
except AttributeError:
return None, messages
return function, messages
def flag(argument):
"""
Check for a valid flag option (no argument) and return ``None``.
Raise ``ValueError`` if an argument is found.
"""
if argument and argument.strip():
raise ValueError('no argument is allowed; "%s" supplied' % argument)
else:
return None
def unchanged(argument):
"""
Return the argument, unchanged.
Raise ``ValueError`` if no argument is found.
"""
if argument is None:
raise ValueError('argument required but none supplied')
else:
return argument # unchanged!
def path(argument):
"""
Return the path argument unwrapped (with newlines removed).
Raise ``ValueError`` if no argument is found or if the path contains
internal whitespace.
"""
if argument is None:
raise ValueError('argument required but none supplied')
else:
path = ''.join([s.strip() for s in argument.splitlines()])
if path.find(' ') == -1:
return path
else:
raise ValueError('path contains whitespace')
def nonnegative_int(argument):
"""
Check for a nonnegative integer argument; raise ``ValueError`` if not.
"""
value = int(argument)
if value < 0:
raise ValueError('negative value; must be positive or zero')
return value
def format_values(values):
return '%s, or "%s"' % (', '.join(['"%s"' % s for s in values[:-1]]),
values[-1])
def choice(argument, values):
try:
value = argument.lower().strip()
except AttributeError:
raise ValueError('must supply an argument; choose from %s'
% format_values(values))
if value in values:
return value
else:
raise ValueError('"%s" unknown; choose from %s'
% (argument, format_values(values)))
--- NEW FILE: admonitions.py ---
# Author: David Goodger
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Admonition directives.
"""
__docformat__ = 'reStructuredText'
from docutils.parsers.rst import states
from docutils import nodes
def admonition(node_class, name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
text = '\n'.join(content)
admonition_node = node_class(text)
if text:
state.nested_parse(content, content_offset, admonition_node)
return [admonition_node]
else:
error = state_machine.reporter.error(
'The "%s" admonition is empty; content required.' % (name),
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
def attention(*args):
return admonition(nodes.attention, *args)
attention.content = 1
def caution(*args):
return admonition(nodes.caution, *args)
caution.content = 1
def danger(*args):
return admonition(nodes.danger, *args)
danger.content = 1
def error(*args):
return admonition(nodes.error, *args)
error.content = 1
def important(*args):
return admonition(nodes.important, *args)
important.content = 1
def note(*args):
return admonition(nodes.note, *args)
note.content = 1
def tip(*args):
return admonition(nodes.tip, *args)
tip.content = 1
def hint(*args):
return admonition(nodes.hint, *args)
hint.content = 1
def warning(*args):
return admonition(nodes.warning, *args)
warning.content = 1
--- NEW FILE: body.py ---
# Author: David Goodger
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Directives for additional body elements.
"""
__docformat__ = 'reStructuredText'
import sys
from docutils import nodes
def topic(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
if not state_machine.match_titles:
error = state_machine.reporter.error(
'Topics may not be nested within topics or body elements.',
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
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)
return [warning]
title_text = arguments[0]
textnodes, messages = state.inline_text(title_text, lineno)
title = nodes.title(title_text, '', *textnodes)
text = '\n'.join(content)
topic_node = nodes.topic(text, title, *messages)
if text:
state.nested_parse(content, content_offset, topic_node)
return [topic_node]
topic.arguments = (1, 0, 1)
topic.content = 1
def line_block(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine,
node_class=nodes.line_block):
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)
return [warning]
text = '\n'.join(content)
text_nodes, messages = state.inline_text(text, lineno)
node = node_class(text, '', *text_nodes)
return [node] + messages
line_block.content = 1
def parsed_literal(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
return line_block(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine,
node_class=nodes.literal_block)
parsed_literal.content = 1
--- NEW FILE: html.py ---
# Author: David Goodger
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Directives for typically HTML-specific constructs.
"""
__docformat__ = 'reStructuredText'
import sys
from docutils import nodes, utils
from docutils.parsers.rst import states
from docutils.transforms import components
def meta(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
node = nodes.Element()
if content:
new_line_offset, blank_finish = state.nested_list_parse(
content, content_offset, node, initial_state='MetaBody',
blank_finish=1, state_machine_kwargs=metaSMkwargs)
if (new_line_offset - content_offset) != len(content):
# incomplete parse of block?
error = state_machine.reporter.error(
'Invalid meta directive.',
nodes.literal_block(block_text, block_text), line=lineno)
node += error
else:
error = state_machine.reporter.error(
'Empty meta directive.',
nodes.literal_block(block_text, block_text), line=lineno)
node += error
return node.get_children()
meta.content = 1
def imagemap(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
return []
class MetaBody(states.SpecializedBody):
class meta(nodes.Special, nodes.PreBibliographic, nodes.Element):
"""HTML-specific "meta" element."""
pass
def field_marker(self, match, context, next_state):
"""Meta element."""
node, blank_finish = self.parsemeta(match)
self.parent += node
return [], next_state, []
def parsemeta(self, match):
name = self.parse_field_marker(match)
indented, indent, line_offset, blank_finish = \
self.state_machine.get_first_known_indented(match.end())
node = self.meta()
pending = nodes.pending(components.Filter,
{'component': 'writer',
'format': 'html',
'nodes': [node]})
node['content'] = ' '.join(indented)
if not indented:
line = self.state_machine.line
msg = self.reporter.info(
'No content for meta tag "%s".' % name,
nodes.literal_block(line, line),
line=self.state_machine.abs_line_number())
return msg, blank_finish
tokens = name.split()
try:
attname, val = utils.extract_name_value(tokens[0])[0]
node[attname.lower()] = val
except utils.NameValueError:
node['name'] = tokens[0]
for token in tokens[1:]:
try:
attname, val = utils.extract_name_value(token)[0]
node[attname.lower()] = val
except utils.NameValueError, detail:
line = self.state_machine.line
msg = self.reporter.error(
'Error parsing meta tag attribute "%s": %s.'
% (token, detail), nodes.literal_block(line, line),
line=self.state_machine.abs_line_number())
return msg, blank_finish
self.document.note_pending(pending)
return pending, blank_finish
metaSMkwargs = {'state_classes': (MetaBody,)}
--- NEW FILE: images.py ---
# Author: David Goodger
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Directives for figures and simple images.
"""
__docformat__ = 'reStructuredText'
import sys
from docutils import nodes, utils
from docutils.parsers.rst import directives
align_values = ('top', 'middle', 'bottom', 'left', 'center', 'right')
def align(argument):
return directives.choice(argument, align_values)
def image(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
reference = ''.join(arguments[0].split('\n'))
if reference.find(' ') != -1:
error = state_machine.reporter.error(
'Image URI contains whitespace.',
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
options['uri'] = reference
image_node = nodes.image(block_text, **options)
return [image_node]
image.arguments = (1, 0, 1)
image.options = {'alt': directives.unchanged,
'height': directives.nonnegative_int,
'width': directives.nonnegative_int,
'scale': directives.nonnegative_int,
'align': align}
def figure(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
(image_node,) = image(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine)
if isinstance(image_node, nodes.system_message):
return [image_node]
figure_node = nodes.figure('', image_node)
if content:
node = nodes.Element() # anonymous container for parsing
state.nested_parse(content, content_offset, node)
first_node = node[0]
if isinstance(first_node, nodes.paragraph):
caption = nodes.caption(first_node.rawsource, '',
*first_node.children)
figure_node += caption
elif not (isinstance(first_node, nodes.comment)
and len(first_node) == 0):
error = state_machine.reporter.error(
'Figure caption must be a paragraph or empty comment.',
nodes.literal_block(block_text, block_text), line=lineno)
return [figure_node, error]
if len(node) > 1:
figure_node += nodes.legend('', *node[1:])
return [figure_node]
figure.arguments = (1, 0, 1)
figure.options = image.options
figure.content = 1
--- NEW FILE: misc.py ---
# Authors: David Goodger, Dethe Elza
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""Miscellaneous directives."""
__docformat__ = 'reStructuredText'
import sys
import os.path
from urllib2 import urlopen, URLError
from docutils import nodes, statemachine, utils
from docutils.parsers.rst import directives, states
def include(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""Include a reST file as part of the content of this reST file."""
source_dir = os.path.dirname(
os.path.abspath(state.document.current_source))
path = ''.join(arguments[0].splitlines())
if path.find(' ') != -1:
error = state_machine.reporter.error(
'"%s" directive path contains whitespace.' % name,
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
path = os.path.normpath(os.path.join(source_dir, path))
path = utils.relative_path(None, path)
try:
include_file = open(path)
except IOError, error:
severe = state_machine.reporter.severe(
'Problems with "%s" directive path:\n%s.' % (name, error),
nodes.literal_block(block_text, block_text), line=lineno)
return [severe]
include_text = include_file.read()
include_file.close()
if options.has_key('literal'):
literal_block = nodes.literal_block(include_text, include_text,
source=path)
literal_block.line = 1
return literal_block
else:
include_lines = statemachine.string2lines(include_text,
convert_whitespace=1)
state_machine.insert_input(include_lines, path)
return []
include.arguments = (1, 0, 1)
include.options = {'literal': directives.flag}
def raw(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""
Pass through content unchanged
Content is included in output based on type argument
Content may be included inline (content section of directive) or
imported from a file or url.
"""
attributes = {'format': arguments[0]}
if content:
if options.has_key('file') or options.has_key('url'):
error = state_machine.reporter.error(
'"%s" directive may not both specify an external file and '
'have content.' % name,
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
text = '\n'.join(content)
elif options.has_key('file'):
if options.has_key('url'):
error = state_machine.reporter.error(
'The "file" and "url" options may not be simultaneously '
'specified for the "%s" directive.' % name,
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
source_dir = os.path.dirname(
os.path.abspath(state.document.current_source))
path = os.path.normpath(os.path.join(source_dir, options['file']))
path = utils.relative_path(None, path)
try:
raw_file = open(path)
except IOError, error:
severe = state_machine.reporter.severe(
'Problems with "%s" directive path:\n%s.' % (name, error),
nodes.literal_block(block_text, block_text), line=lineno)
return [severe]
text = raw_file.read()
raw_file.close()
attributes['source'] = path
elif options.has_key('url'):
try:
raw_file = urlopen(options['url'])
except (URLError, IOError, OSError), error:
severe = state_machine.reporter.severe(
'Problems with "%s" directive URL "%s":\n%s.'
% (name, options['url'], error),
nodes.literal_block(block_text, block_text), line=lineno)
return [severe]
text = raw_file.read()
raw_file.close()
attributes['source'] = options['file']
else:
error = state_machine.reporter.warning(
'The "%s" directive requires content; none supplied.' % (name),
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
raw_node = nodes.raw('', text, **attributes)
return [raw_node]
raw.arguments = (1, 0, 1)
raw.options = {'file': directives.path,
'url': directives.path}
raw.content = 1
def replace(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
if not isinstance(state, states.SubstitutionDef):
error = state_machine.reporter.error(
'Invalid context: the "%s" directive can only be used within a '
'substitution definition.' % (name),
nodes.literal_block(block_text, block_text), line=lineno)
return [error]
text = '\n'.join(content)
element = nodes.Element(text)
if text:
state.nested_parse(content, content_offset, element)
if len(element) != 1 or not isinstance(element[0], nodes.paragraph):
messages = []
for node in element:
if isinstance(node, nodes.system_message):
if node.has_key('backrefs'):
del node['backrefs']
messages.append(node)
error = state_machine.reporter.error(
'Error in "%s" directive: may contain a single paragraph '
'only.' % (name), line=lineno)
messages.append(error)
return messages
else:
return element[0].children
else:
error = state_machine.reporter.error(
'The "%s" directive is empty; content required.' % (name),
line=lineno)
return [error]
replace.content = 1
def directive_test_function(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
if content:
text = '\n'.join(content)
info = state_machine.reporter.info(
'Directive processed. Type="%s", arguments=%r, options=%r, '
'content:' % (name, arguments, options),
nodes.literal_block(text, text), line=lineno)
else:
info = state_machine.reporter.info(
'Directive processed. Type="%s", arguments=%r, options=%r, '
'content: None' % (name, arguments, options), line=lineno)
return [info]
directive_test_function.arguments = (0, 1, 1)
directive_test_function.options = {'option': directives.unchanged}
directive_test_function.content = 1
--- NEW FILE: parts.py ---
# Author: David Goodger, Dmitry Jemerov
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Directives for document parts.
"""
__docformat__ = 'reStructuredText'
from docutils import nodes
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."""
if arguments:
title_text = arguments[0]
text_nodes, messages = state.inline_text(title_text, lineno)
title = nodes.title(title_text, '', *text_nodes)
else:
messages = []
title = None
pending = nodes.pending(parts.Contents, {'title': title}, block_text)
pending.details.update(options)
state_machine.document.note_pending(pending)
return [pending] + messages
contents.arguments = (0, 1, 1)
contents.options = {'depth': directives.nonnegative_int,
'local': directives.flag,
'backlinks': backlinks}
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}
--- NEW FILE: references.py ---
# Author: David Goodger, Dmitry Jemerov
# Contact: goodger@users.sourceforge.net
# Revision: $Revision: 1.1 $
# Date: $Date: 2002/11/08 23:47:52 $
# Copyright: This module has been placed in the public domain.
"""
Directives for references and targets.
"""
__docformat__ = 'reStructuredText'
from docutils import nodes
from docutils.transforms import references
def target_notes(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""Target footnote generation."""
pending = nodes.pending(references.TargetNotes)
state_machine.document.note_pending(pending)
nodelist = [pending]
return nodelist
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