/usr/lib/python2.7/dist-packages/docutils/transforms/universal.py is in python-docutils 0.12+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 | # $Id: universal.py 7668 2013-06-04 12:46:30Z milde $
# -*- coding: utf-8 -*-
# Authors: David Goodger <goodger@python.org>; Ueli Schlaepfer; Günter Milde
# Maintainer: docutils-develop@lists.sourceforge.net
# Copyright: This module has been placed in the public domain.
"""
Transforms needed by most or all documents:
- `Decorations`: Generate a document's header & footer.
- `Messages`: Placement of system messages stored in
`nodes.document.transform_messages`.
- `TestMessages`: Like `Messages`, used on test runs.
- `FinalReferences`: Resolve remaining references.
"""
__docformat__ = 'reStructuredText'
import re
import sys
import time
from docutils import nodes, utils
from docutils.transforms import TransformError, Transform
from docutils.utils import smartquotes
class Decorations(Transform):
"""
Populate a document's decoration element (header, footer).
"""
default_priority = 820
def apply(self):
header_nodes = self.generate_header()
if header_nodes:
decoration = self.document.get_decoration()
header = decoration.get_header()
header.extend(header_nodes)
footer_nodes = self.generate_footer()
if footer_nodes:
decoration = self.document.get_decoration()
footer = decoration.get_footer()
footer.extend(footer_nodes)
def generate_header(self):
return None
def generate_footer(self):
# @@@ Text is hard-coded for now.
# Should be made dynamic (language-dependent).
settings = self.document.settings
if settings.generator or settings.datestamp or settings.source_link \
or settings.source_url:
text = []
if settings.source_link and settings._source \
or settings.source_url:
if settings.source_url:
source = settings.source_url
else:
source = utils.relative_path(settings._destination,
settings._source)
text.extend([
nodes.reference('', 'View document source',
refuri=source),
nodes.Text('.\n')])
if settings.datestamp:
datestamp = time.strftime(settings.datestamp, time.gmtime())
text.append(nodes.Text('Generated on: ' + datestamp + '.\n'))
if settings.generator:
text.extend([
nodes.Text('Generated by '),
nodes.reference('', 'Docutils', refuri=
'http://docutils.sourceforge.net/'),
nodes.Text(' from '),
nodes.reference('', 'reStructuredText', refuri='http://'
'docutils.sourceforge.net/rst.html'),
nodes.Text(' source.\n')])
return [nodes.paragraph('', '', *text)]
else:
return None
class ExposeInternals(Transform):
"""
Expose internal attributes if ``expose_internals`` setting is set.
"""
default_priority = 840
def not_Text(self, node):
return not isinstance(node, nodes.Text)
def apply(self):
if self.document.settings.expose_internals:
for node in self.document.traverse(self.not_Text):
for att in self.document.settings.expose_internals:
value = getattr(node, att, None)
if value is not None:
node['internal:' + att] = value
class Messages(Transform):
"""
Place any system messages generated after parsing into a dedicated section
of the document.
"""
default_priority = 860
def apply(self):
unfiltered = self.document.transform_messages
threshold = self.document.reporter.report_level
messages = []
for msg in unfiltered:
if msg['level'] >= threshold and not msg.parent:
messages.append(msg)
if messages:
section = nodes.section(classes=['system-messages'])
# @@@ get this from the language module?
section += nodes.title('', 'Docutils System Messages')
section += messages
self.document.transform_messages[:] = []
self.document += section
class FilterMessages(Transform):
"""
Remove system messages below verbosity threshold.
"""
default_priority = 870
def apply(self):
for node in self.document.traverse(nodes.system_message):
if node['level'] < self.document.reporter.report_level:
node.parent.remove(node)
class TestMessages(Transform):
"""
Append all post-parse system messages to the end of the document.
Used for testing purposes.
"""
default_priority = 880
def apply(self):
for msg in self.document.transform_messages:
if not msg.parent:
self.document += msg
class StripComments(Transform):
"""
Remove comment elements from the document tree (only if the
``strip_comments`` setting is enabled).
"""
default_priority = 740
def apply(self):
if self.document.settings.strip_comments:
for node in self.document.traverse(nodes.comment):
node.parent.remove(node)
class StripClassesAndElements(Transform):
"""
Remove from the document tree all elements with classes in
`self.document.settings.strip_elements_with_classes` and all "classes"
attribute values in `self.document.settings.strip_classes`.
"""
default_priority = 420
def apply(self):
if not (self.document.settings.strip_elements_with_classes
or self.document.settings.strip_classes):
return
# prepare dicts for lookup (not sets, for Python 2.2 compatibility):
self.strip_elements = dict(
[(key, None)
for key in (self.document.settings.strip_elements_with_classes
or [])])
self.strip_classes = dict(
[(key, None) for key in (self.document.settings.strip_classes
or [])])
for node in self.document.traverse(self.check_classes):
node.parent.remove(node)
def check_classes(self, node):
if isinstance(node, nodes.Element):
for class_value in node['classes'][:]:
if class_value in self.strip_classes:
node['classes'].remove(class_value)
if class_value in self.strip_elements:
return 1
class SmartQuotes(Transform):
"""
Replace ASCII quotation marks with typographic form.
Also replace multiple dashes with em-dash/en-dash characters.
"""
default_priority = 850
def __init__(self, document, startnode):
Transform.__init__(self, document, startnode=startnode)
self.unsupported_languages = set()
def get_tokens(self, txtnodes):
# A generator that yields ``(texttype, nodetext)`` tuples for a list
# of "Text" nodes (interface to ``smartquotes.educate_tokens()``).
texttype = {True: 'literal', # "literal" text is not changed:
False: 'plain'}
for txtnode in txtnodes:
nodetype = texttype[isinstance(txtnode.parent,
(nodes.literal,
nodes.math,
nodes.image,
nodes.raw,
nodes.problematic))]
yield (nodetype, txtnode.astext())
def apply(self):
smart_quotes = self.document.settings.smart_quotes
if not smart_quotes:
return
try:
alternative = smart_quotes.startswith('alt')
except AttributeError:
alternative = False
# print repr(alternative)
document_language = self.document.settings.language_code
# "Educate" quotes in normal text. Handle each block of text
# (TextElement node) as a unit to keep context around inline nodes:
for node in self.document.traverse(nodes.TextElement):
# skip preformatted text blocks and special elements:
if isinstance(node, (nodes.FixedTextElement, nodes.Special)):
continue
# nested TextElements are not "block-level" elements:
if isinstance(node.parent, nodes.TextElement):
continue
# list of text nodes in the "text block":
txtnodes = [txtnode for txtnode in node.traverse(nodes.Text)
if not isinstance(txtnode.parent,
nodes.option_string)]
# language: use typographical quotes for language "lang"
lang = node.get_language_code(document_language)
# use alternative form if `smart-quotes` setting starts with "alt":
if alternative:
if '-x-altquot' in lang:
lang = lang.replace('-x-altquot', '')
else:
lang += '-x-altquot'
# drop subtags missing in quotes:
for tag in utils.normalize_language_tag(lang):
if tag in smartquotes.smartchars.quotes:
lang = tag
break
else: # language not supported: (keep ASCII quotes)
if lang not in self.unsupported_languages:
self.document.reporter.warning('No smart quotes '
'defined for language "%s".'%lang, base_node=node)
self.unsupported_languages.add(lang)
lang = ''
# Iterator educating quotes in plain text:
# '2': set all, using old school en- and em- dash shortcuts
teacher = smartquotes.educate_tokens(self.get_tokens(txtnodes),
attr='2', language=lang)
for txtnode, newtext in zip(txtnodes, teacher):
txtnode.parent.replace(txtnode, nodes.Text(newtext))
self.unsupported_languages = set() # reset
|