# .. coding: utf8
# :Author: Günter Milde
# :Revision: $Revision: 7952 $
# :Date: $Date: 2005-06-28$
# :Copyright: © 2005, 2009 Günter Milde.
# :License: Released under the terms of the `2-Clause BSD license`_, in short:
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
# This file is offered as-is, without any warranty.
#
# .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause
# Use "best practice" as recommended by the W3C:
# http://www.w3.org/2009/cheatsheet/
"""
Plain HyperText Markup Language document tree Writer.
The output conforms to the `HTML 5` specification.
The cascading style sheet "minimal.css" is required for proper viewing,
the style sheet "plain.css" improves reading experience.
"""
__docformat__ = 'reStructuredText'
import sys
import os
import os.path
import re
import urllib
try: # check for the Python Imaging Library
import PIL.Image
except ImportError:
try: # sometimes PIL modules are put in PYTHONPATH's root
import Image
class PIL(object): pass # dummy wrapper
PIL.Image = Image
except ImportError:
PIL = None
import docutils
from docutils import frontend, nodes, utils, writers, languages, io
from docutils.utils.error_reporting import SafeString
from docutils.transforms import writer_aux
from docutils.utils.math import (unichar2tex, pick_math_environment,
math2html, latex2mathml, tex2mathml_extern)
class Writer(writers.Writer):
supported = ('html', 'html5', 'html4', 'xhtml', 'xhtml10')
"""Formats this writer supports."""
default_stylesheets = ['minimal.css','plain.css']
default_stylesheet_dirs = ['.', os.path.abspath(os.path.dirname(__file__))]
default_template = 'template.txt'
default_template_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)), default_template)
settings_spec = (
'HTML-Specific Options',
None,
(('Specify the template file (UTF-8 encoded). Default is "%s".'
% default_template_path,
['--template'],
{'default': default_template_path, 'metavar': ''}),
('Comma separated list of stylesheet URLs. '
'Overrides previous --stylesheet and --stylesheet-path settings.',
['--stylesheet'],
{'metavar': '', 'overrides': 'stylesheet_path',
'validator': frontend.validate_comma_separated_list}),
('Comma separated list of stylesheet paths. '
'Relative paths are expanded if a matching file is found in '
'the --stylesheet-dirs. With --link-stylesheet, '
'the path is rewritten relative to the output HTML file. '
'Default: "%s"' % ','.join(default_stylesheets),
['--stylesheet-path'],
{'metavar': '', 'overrides': 'stylesheet',
'validator': frontend.validate_comma_separated_list,
'default': default_stylesheets}),
('Embed the stylesheet(s) in the output HTML file. The stylesheet '
'files must be accessible during processing. This is the default.',
['--embed-stylesheet'],
{'default': 1, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Link to the stylesheet(s) in the output HTML file. '
'Default: embed stylesheets.',
['--link-stylesheet'],
{'dest': 'embed_stylesheet', 'action': 'store_false'}),
('Comma-separated list of directories where stylesheets are found. '
'Used by --stylesheet-path when expanding relative path arguments. '
'Default: "%s"' % default_stylesheet_dirs,
['--stylesheet-dirs'],
{'metavar': '',
'validator': frontend.validate_comma_separated_list,
'default': default_stylesheet_dirs}),
('Specify the initial header level. Default is 1 for "". '
'Does not affect document title & subtitle (see --no-doc-title).',
['--initial-header-level'],
{'choices': '1 2 3 4 5 6'.split(), 'default': '1',
'metavar': ''}),
('Format for footnote references: one of "superscript" or '
'"brackets". Default is "brackets".',
['--footnote-references'],
{'choices': ['superscript', 'brackets'], 'default': 'brackets',
'metavar': '',
'overrides': 'trim_footnote_reference_space'}),
('Format for block quote attributions: one of "dash" (em-dash '
'prefix), "parentheses"/"parens", or "none". Default is "dash".',
['--attribution'],
{'choices': ['dash', 'parentheses', 'parens', 'none'],
'default': 'dash', 'metavar': ''}),
('Remove extra vertical whitespace between items of "simple" bullet '
'lists and enumerated lists. Default: enabled.',
['--compact-lists'],
{'default': True, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Disable compact simple bullet and enumerated lists.',
['--no-compact-lists'],
{'dest': 'compact_lists', 'action': 'store_false'}),
('Remove extra vertical whitespace between items of simple field '
'lists. Default: enabled.',
['--compact-field-lists'],
{'default': True, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Disable compact simple field lists.',
['--no-compact-field-lists'],
{'dest': 'compact_field_lists', 'action': 'store_false'}),
('Added to standard table classes. '
'Defined styles: "borderless". Default: ""',
['--table-style'],
{'default': ''}),
('Math output format (one of "MathML", "HTML", "MathJax", '
'or "LaTeX") and option(s). '
'Default: "HTML math.css"',
['--math-output'],
{'default': 'HTML math.css'}),
('Prepend an XML declaration. (Thwarts HTML5 conformance.) '
'Default: False',
['--xml-declaration'],
{'default': False, 'action': 'store_true',
'validator': frontend.validate_boolean}),
('Omit the XML declaration.',
['--no-xml-declaration'],
{'dest': 'xml_declaration', 'action': 'store_false'}),
('Obfuscate email addresses to confuse harvesters while still '
'keeping email links usable with standards-compliant browsers.',
['--cloak-email-addresses'],
{'action': 'store_true', 'validator': frontend.validate_boolean}),))
settings_defaults = {'output_encoding_error_handler': 'xmlcharrefreplace'}
config_section = 'html-plain writer'
config_section_dependencies = ('writers',)
visitor_attributes = (
'head_prefix', 'head', 'stylesheet', 'body_prefix',
'body_pre_docinfo', 'docinfo', 'body', 'body_suffix',
'title', 'subtitle', 'header', 'footer', 'meta', 'fragment',
'html_prolog', 'html_head', 'html_title', 'html_subtitle',
'html_body')
def get_transforms(self):
return writers.Writer.get_transforms(self) + [writer_aux.Admonitions]
def __init__(self):
writers.Writer.__init__(self)
self.translator_class = HTMLTranslator
def translate(self):
self.visitor = visitor = self.translator_class(self.document)
self.document.walkabout(visitor)
for attr in self.visitor_attributes:
setattr(self, attr, getattr(visitor, attr))
self.output = self.apply_template()
def apply_template(self):
template_file = open(self.document.settings.template, 'rb')
template = unicode(template_file.read(), 'utf-8')
template_file.close()
subs = self.interpolation_dict()
return template % subs
def interpolation_dict(self):
subs = {}
settings = self.document.settings
for attr in self.visitor_attributes:
subs[attr] = ''.join(getattr(self, attr)).rstrip('\n')
subs['encoding'] = settings.output_encoding
subs['version'] = docutils.__version__
return subs
def assemble_parts(self):
writers.Writer.assemble_parts(self)
for part in self.visitor_attributes:
self.parts[part] = ''.join(getattr(self, part))
class HTMLTranslator(nodes.NodeVisitor):
"""
This writer generates `polyglott markup`: HTML 5 that is also valid XML.
"""
xml_declaration = '\n'
doctype = (
'\n')
doctype_mathml = doctype
head_prefix_template = ('\n\n')
content_type = (' \n')
generator = (' \n')
# Template for the MathJax script in the header:
mathjax_script = '\n'
# The latest version of MathJax from the distributed server:
# avaliable to the public under the `MathJax CDN Terms of Service`__
# __http://www.mathjax.org/download/mathjax-cdn-terms-of-service/
# may be overwritten by custom URL appended to "mathjax"
mathjax_url = ('https://cdn.mathjax.org/mathjax/latest/MathJax.js?'
'config=TeX-AMS_CHTML')
stylesheet_link = ' \n'
embedded_stylesheet = '\n'
words_and_spaces = re.compile(r'\S+| +|\n')
sollbruchstelle = re.compile(r'.+\W\W.+|[-?].+', re.U) # wrap point inside word
lang_attribute = 'lang' # name changes to 'xml:lang' in XHTML 1.1
def __init__(self, document):
nodes.NodeVisitor.__init__(self, document)
self.settings = settings = document.settings
lcode = settings.language_code
self.language = languages.get_language(lcode, document.reporter)
self.meta = [self.generator % docutils.__version__]
self.head_prefix = []
self.html_prolog = []
if settings.xml_declaration:
self.head_prefix.append(self.xml_declaration
% settings.output_encoding)
self.content_type = ""
# encoding not interpolated:
self.html_prolog.append(self.xml_declaration)
self.head = self.meta[:]
self.stylesheet = [self.stylesheet_call(path)
for path in utils.get_stylesheet_list(settings)]
self.body_prefix = ['\n\n']
# document title, subtitle display
self.body_pre_docinfo = []
# author, date, etc.
self.docinfo = []
self.body = []
self.fragment = []
self.body_suffix = ['\n\n']
self.section_level = 0
self.initial_header_level = int(settings.initial_header_level)
self.math_output = settings.math_output.split()
self.math_output_options = self.math_output[1:]
self.math_output = self.math_output[0].lower()
# A heterogenous stack used in conjunction with the tree traversal.
# Make sure that the pops correspond to the pushes:
self.context = []
self.topic_classes = [] # TODO: replace with self_in_contents
self.colspecs = []
self.compact_p = True
self.compact_simple = False
self.compact_field_list = False
self.in_docinfo = False
self.in_sidebar = False
self.in_footnote_list = False
self.title = []
self.subtitle = []
self.header = []
self.footer = []
self.html_head = [self.content_type] # charset not interpolated
self.html_title = []
self.html_subtitle = []
self.html_body = []
self.in_document_title = 0 # len(self.body) or 0
self.in_mailto = False
self.author_in_authors = False
self.math_header = []
def astext(self):
return ''.join(self.head_prefix + self.head
+ self.stylesheet + self.body_prefix
+ self.body_pre_docinfo + self.docinfo
+ self.body + self.body_suffix)
def encode(self, text):
"""Encode special characters in `text` & return."""
# Use only named entities known in both XML and HTML
# other characters are automatically encoded "by number" if required.
text = unicode(text)
return text.translate({
ord('&'): u'&',
ord('<'): u'<',
ord('"'): u'"',
ord('>'): u'>',
ord('@'): u'@', # may thwart some address harvesters
})
def cloak_mailto(self, uri):
"""Try to hide a mailto: URL from harvesters."""
# Encode "@" using a URL octet reference (see RFC 1738).
# Further cloaking with HTML entities will be done in the
# `attval` function.
return uri.replace('@', '%40')
def cloak_email(self, addr):
"""Try to hide the link text of a email link from harversters."""
# Surround at-signs and periods with tags. ("@" has
# already been encoded to "@" by the `encode` method.)
addr = addr.replace('@', '@ ')
addr = addr.replace('.', '. ')
return addr
def attval(self, text,
whitespace=re.compile('[\n\r\t\v\f]')):
"""Cleanse, HTML encode, and return attribute value text."""
encoded = self.encode(whitespace.sub(' ', text))
if self.in_mailto and self.settings.cloak_email_addresses:
# Cloak at-signs ("%40") and periods with HTML entities.
encoded = encoded.replace('%40', '%40')
encoded = encoded.replace('.', '.')
return encoded
def stylesheet_call(self, path):
"""Return code to reference or embed stylesheet file `path`"""
if self.settings.embed_stylesheet:
try:
content = io.FileInput(source_path=path,
encoding='utf-8').read()
self.settings.record_dependencies.add(path)
except IOError, err:
msg = u"Cannot embed stylesheet '%s': %s." % (
path, SafeString(err.strerror))
self.document.reporter.error(msg)
return '<--- %s --->\n' % msg
return self.embedded_stylesheet % content
# else link to style file:
if self.settings.stylesheet_path:
# adapt path relative to output (cf. config.html#stylesheet-path)
path = utils.relative_path(self.settings._destination, path)
return self.stylesheet_link % self.encode(path)
def starttag(self, node, tagname, suffix='\n', empty=False, **attributes):
"""
Construct and return a start tag given a node (id & class attributes
are extracted), tag name, and optional attributes.
"""
tagname = tagname.lower()
prefix = []
atts = {}
ids = []
for (name, value) in attributes.items():
atts[name.lower()] = value
classes = []
languages = []
# unify class arguments and move language specification
for cls in node.get('classes', []) + atts.pop('class', '').split() :
if cls.startswith('language-'):
languages.append(cls[9:])
elif cls.strip() and cls not in classes:
classes.append(cls)
if languages:
# attribute name is 'lang' in XHTML 1.0 but 'xml:lang' in 1.1
atts[self.lang_attribute] = languages[0]
if classes:
atts['class'] = ' '.join(classes)
assert 'id' not in atts
ids.extend(node.get('ids', []))
if 'ids' in atts:
ids.extend(atts['ids'])
del atts['ids']
if ids:
atts['id'] = ids[0]
for id in ids[1:]:
# Add empty "span" elements for additional IDs. Note
# that we cannot use empty "a" elements because there
# may be targets inside of references, but nested "a"
# elements aren't allowed in XHTML (even if they do
# not all have a "href" attribute).
if empty:
# Empty tag. Insert target right in front of element.
prefix.append(' ' % id)
else:
# Non-empty tag. Place the auxiliary tag
# *inside* the element, as the first child.
suffix += ' ' % id
attlist = atts.items()
attlist.sort()
parts = [tagname]
for name, value in attlist:
# value=None was used for boolean attributes without
# value, but this isn't supported by XHTML.
assert value is not None
if isinstance(value, list):
values = [unicode(v) for v in value]
parts.append('%s="%s"' % (name.lower(),
self.attval(' '.join(values))))
else:
parts.append('%s="%s"' % (name.lower(),
self.attval(unicode(value))))
if empty:
infix = ' /'
else:
infix = ''
return ''.join(prefix) + '<%s%s>' % (' '.join(parts), infix) + suffix
def emptytag(self, node, tagname, suffix='\n', **attributes):
"""Construct and return an XML-compatible empty tag."""
return self.starttag(node, tagname, suffix, empty=True, **attributes)
def set_class_on_child(self, node, class_, index=0):
"""
Set class `class_` on the visible child no. index of `node`.
Do nothing if node has fewer children than `index`.
"""
children = [n for n in node if not isinstance(n, nodes.Invisible)]
try:
child = children[index]
except IndexError:
return
child['classes'].append(class_)
def visit_Text(self, node):
text = node.astext()
encoded = self.encode(text)
if self.in_mailto and self.settings.cloak_email_addresses:
encoded = self.cloak_email(encoded)
self.body.append(encoded)
def depart_Text(self, node):
pass
def visit_abbreviation(self, node):
# @@@ implementation incomplete ("title" attribute)
self.body.append(self.starttag(node, 'abbr', ''))
def depart_abbreviation(self, node):
self.body.append('')
def visit_acronym(self, node):
# @@@ implementation incomplete ("title" attribute)
self.body.append(self.starttag(node, 'abbr', ''))
def depart_acronym(self, node):
self.body.append('')
def visit_address(self, node):
self.visit_docinfo_item(node, 'address', meta=False)
self.body.append(self.starttag(node, 'pre', '', CLASS='address'))
def depart_address(self, node):
self.body.append('\n\n')
self.depart_docinfo_item()
def visit_admonition(self, node):
node['classes'].insert(0, 'admonition')
self.body.append(self.starttag(node, 'div'))
def depart_admonition(self, node=None):
self.body.append('\n')
attribution_formats = {'dash': (u'\u2014', ''),
'parentheses': ('(', ')'),
'parens': ('(', ')'),
'none': ('', '')}
def visit_attribution(self, node):
prefix, suffix = self.attribution_formats[self.settings.attribution]
self.context.append(suffix)
self.body.append(
self.starttag(node, 'p', prefix, CLASS='attribution'))
self.body.append(self.starttag(node, 'cite', ''))
def depart_attribution(self, node):
self.body.append('' + self.context.pop() + '
\n')
# author, authors
# ---------------
# Use paragraphs instead of hard-coded linebreaks.
def visit_author(self, node):
if not(isinstance(node.parent, nodes.authors)):
self.visit_docinfo_item(node, 'author')
self.body.append('')
def depart_author(self, node):
self.body.append('
')
if isinstance(node.parent, nodes.authors):
self.body.append('\n')
else:
self.depart_docinfo_item()
def visit_authors(self, node):
self.visit_docinfo_item(node, 'authors', meta=False)
def depart_authors(self, node):
self.depart_docinfo_item()
def visit_block_quote(self, node):
self.body.append(self.starttag(node, 'blockquote'))
def depart_block_quote(self, node):
self.body.append('\n')
def check_simple_list(self, node):
"""Check for a simple list that can be rendered compactly."""
visitor = SimpleListChecker(self.document)
try:
node.walk(visitor)
except nodes.NodeFound:
return None
else:
return 1
# Compact lists
# ------------
# Include definition lists and field lists (in addition to ordered
# and unordered lists) in the test if a list is "simple" (cf. the
# html4css1.HTMLTranslator docstring and the SimpleListChecker class at
# the end of this file).
def is_compactable(self, node):
# print "is_compactable %s ?" % node.__class__,
# explicite class arguments have precedence
if 'compact' in node['classes']:
# print "explicitely compact"
return True
if 'open' in node['classes']:
# print "explicitely open"
return False
# check config setting:
if (isinstance(node, nodes.field_list) or
isinstance(node, nodes.definition_list)
) and not self.settings.compact_field_lists:
# print "`compact-field-lists` is False"
return False
if (isinstance(node, nodes.enumerated_list) or
isinstance(node, nodes.bullet_list)
) and not self.settings.compact_lists:
# print "`compact-lists` is False"
return False
# more special cases:
if (self.topic_classes == ['contents']): # TODO: self.in_contents
return True
# check the list items:
visitor = SimpleListChecker(self.document)
try:
node.walk(visitor)
except nodes.NodeFound:
# print "complex node"
return False
else:
# print "simple list"
return True
def visit_bullet_list(self, node):
atts = {}
old_compact_simple = self.compact_simple
self.context.append((self.compact_simple, self.compact_p))
self.compact_p = None
self.compact_simple = self.is_compactable(node)
if self.compact_simple and not old_compact_simple:
atts['class'] = 'simple'
self.body.append(self.starttag(node, 'ul', **atts))
def depart_bullet_list(self, node):
self.compact_simple, self.compact_p = self.context.pop()
self.body.append('\n')
def visit_caption(self, node):
self.body.append(self.starttag(node, 'p', '', CLASS='caption'))
def depart_caption(self, node):
self.body.append('\n')
# citations
# ---------
# Use definition list instead of table for bibliographic references.
# Join adjacent citation entries.
def visit_citation(self, node):
if not self.in_footnote_list:
self.body.append('\n')
self.in_footnote_list = True
def depart_citation(self, node):
self.body.append('\n')
if not isinstance(node.next_node(descend=False, siblings=True),
nodes.citation):
self.body.append(' \n')
self.in_footnote_list = False
def visit_citation_reference(self, node):
href = '#'
if 'refid' in node:
href += node['refid']
elif 'refname' in node:
href += self.document.nameids[node['refname']]
# else: # TODO system message (or already in the transform)?
# 'Citation reference missing.'
self.body.append(self.starttag(
node, 'a', '[', CLASS='citation-reference', href=href))
def depart_citation_reference(self, node):
self.body.append(']')
# classifier
# ----------
# don't insert classifier-delimiter here (done by CSS)
def visit_classifier(self, node):
self.body.append(self.starttag(node, 'span', '', CLASS='classifier'))
def depart_classifier(self, node):
self.body.append('')
def visit_colspec(self, node):
self.colspecs.append(node)
# "stubs" list is an attribute of the tgroup element:
node.parent.stubs.append(node.attributes.get('stub'))
def depart_colspec(self, node):
pass
def write_colspecs(self):
width = 0
for node in self.colspecs:
width += node['colwidth']
for node in self.colspecs:
colwidth = int(node['colwidth'] * 100.0 / width + 0.5)
self.body.append(self.emptytag(node, 'col',
style='width: %i%%' % colwidth))
self.colspecs = []
def visit_comment(self, node,
sub=re.compile('-(?=-)').sub):
"""Escape double-dashes in comment text."""
self.body.append('\n' % sub('- ', node.astext()))
# Content already processed:
raise nodes.SkipNode
def visit_compound(self, node):
self.body.append(self.starttag(node, 'div', CLASS='compound'))
if len(node) > 1:
node[0]['classes'].append('compound-first')
node[-1]['classes'].append('compound-last')
for child in node[1:-1]:
child['classes'].append('compound-middle')
def depart_compound(self, node):
self.body.append('\n')
def visit_container(self, node):
self.body.append(self.starttag(node, 'div', CLASS='docutils container'))
def depart_container(self, node):
self.body.append('\n')
def visit_contact(self, node):
self.visit_docinfo_item(node, 'contact', meta=False)
def depart_contact(self, node):
self.depart_docinfo_item()
def visit_copyright(self, node):
self.visit_docinfo_item(node, 'copyright', meta=False)
def depart_copyright(self, node):
self.depart_docinfo_item()
def visit_date(self, node):
self.visit_docinfo_item(node, 'date', meta=False)
def depart_date(self, node):
self.depart_docinfo_item()
def visit_decoration(self, node):
pass
def depart_decoration(self, node):
pass
def visit_definition(self, node):
self.body.append('\n')
self.body.append(self.starttag(node, 'dd', ''))
def depart_definition(self, node):
self.body.append('\n')
def visit_definition_list(self, node):
classes = node.setdefault('classes', [])
if self.is_compactable(node):
classes.append('simple')
self.body.append(self.starttag(node, 'dl'))
def depart_definition_list(self, node):
self.body.append('\n')
def visit_definition_list_item(self, node):
# pass class arguments, ids and names to definition term:
node.children[0]['classes'] = (
node.get('classes', []) + node.children[0].get('classes', []))
node.children[0]['ids'] = (
node.get('ids', []) + node.children[0].get('ids', []))
node.children[0]['names'] = (
node.get('names', []) + node.children[0].get('names', []))
def depart_definition_list_item(self, node):
pass
def visit_description(self, node):
self.body.append(self.starttag(node, 'dd', ''))
def depart_description(self, node):
self.body.append('\n')
# docinfo
# -------
# use definition list instead of table
def visit_docinfo(self, node):
classes = 'docinfo'
if (self.is_compactable(node)):
classes += ' simple'
self.body.append(self.starttag(node, 'dl', CLASS=classes))
def depart_docinfo(self, node):
self.body.append('\n')
def visit_docinfo_item(self, node, name, meta=True):
if meta:
meta_tag = ' \n' \
% (name, self.attval(node.astext()))
self.add_meta(meta_tag)
self.body.append('%s \n'
% (name, self.language.labels[name]))
self.body.append(self.starttag(node, 'dd', '', CLASS=name))
def depart_docinfo_item(self):
self.body.append('\n')
def visit_doctest_block(self, node):
self.body.append(self.starttag(node, 'pre', suffix='',
CLASS='code python doctest'))
def depart_doctest_block(self, node):
self.body.append('\n\n')
def visit_document(self, node):
self.head.append('%s \n'
% self.encode(node.get('title', '')))
def depart_document(self, node):
self.head_prefix.extend([self.doctype,
self.head_prefix_template %
{'lang': self.settings.language_code}])
self.html_prolog.append(self.doctype)
self.meta.insert(0, self.content_type % self.settings.output_encoding)
self.head.insert(0, self.content_type % self.settings.output_encoding)
if self.math_header:
if self.math_output == 'mathjax':
self.head.extend(self.math_header)
else:
self.stylesheet.extend(self.math_header)
# skip content-type meta tag with interpolated charset value:
self.html_head.extend(self.head[1:])
self.body_prefix.append(self.starttag(node, 'div', CLASS='document'))
self.body_suffix.insert(0, '\n')
self.fragment.extend(self.body) # self.fragment is the "naked" body
self.html_body.extend(self.body_prefix[1:] + self.body_pre_docinfo
+ self.docinfo + self.body
+ self.body_suffix[:-1])
assert not self.context, 'len(context) = %s' % len(self.context)
def visit_emphasis(self, node):
self.body.append(self.starttag(node, 'em', ''))
def depart_emphasis(self, node):
self.body.append('')
def visit_entry(self, node):
atts = {'class': []}
if isinstance(node.parent.parent, nodes.thead):
atts['class'].append('head')
if node.parent.parent.parent.stubs[node.parent.column]:
# "stubs" list is an attribute of the tgroup element
atts['class'].append('stub')
if atts['class']:
tagname = 'th'
atts['class'] = ' '.join(atts['class'])
else:
tagname = 'td'
del atts['class']
node.parent.column += 1
if 'morerows' in node:
atts['rowspan'] = node['morerows'] + 1
if 'morecols' in node:
atts['colspan'] = node['morecols'] + 1
node.parent.column += node['morecols']
self.body.append(self.starttag(node, tagname, '', **atts))
self.context.append('%s>\n' % tagname.lower())
# TODO: why did the html4css1 writer insert an NBSP into empty cells?
# if len(node) == 0: # empty cell
# self.body.append(' ') # no-break space
def depart_entry(self, node):
self.body.append(self.context.pop())
def visit_enumerated_list(self, node):
"""
The 'start' attribute does not conform to HTML 4.01's strict.dtd, but
CSS1 doesn't help. CSS2 isn't widely enough supported yet to be
usable.
"""
atts = {}
if 'start' in node:
atts['start'] = node['start']
if 'enumtype' in node:
atts['class'] = node['enumtype']
if self.is_compactable(node):
atts['class'] = (atts.get('class', '') + ' simple').strip()
self.body.append(self.starttag(node, 'ol', **atts))
def depart_enumerated_list(self, node):
self.body.append('\n')
# field-list
# ----------
# set as definition list, styled with CSS
def visit_field_list(self, node):
# Keep simple paragraphs in the field_body to enable CSS
# rule to start body on new line if the label is too long
classes = 'field-list'
if (self.is_compactable(node)):
classes += ' simple'
self.body.append(self.starttag(node, 'dl', CLASS=classes))
def depart_field_list(self, node):
self.body.append('\n')
def visit_field(self, node):
pass
def depart_field(self, node):
pass
# as field is ignored, pass class arguments to field-name and field-body:
def visit_field_name(self, node):
self.body.append(self.starttag(node, 'dt', '',
CLASS=''.join(node.parent['classes'])))
def depart_field_name(self, node):
self.body.append('\n')
def visit_field_body(self, node):
self.body.append(self.starttag(node, 'dd', '',
CLASS=''.join(node.parent['classes'])))
# prevent misalignment of following content if the field is empty:
if not node.children:
self.body.append('
')
def depart_field_body(self, node):
self.body.append('\n')
def visit_figure(self, node):
atts = {'class': 'figure'}
if node.get('width'):
atts['style'] = 'width: %s' % node['width']
if node.get('align'):
atts['class'] += " align-" + node['align']
self.body.append(self.starttag(node, 'div', **atts))
def depart_figure(self, node):
self.body.append('\n')
# use HTML 5 element?
def visit_footer(self, node):
self.context.append(len(self.body))
def depart_footer(self, node):
start = self.context.pop()
footer = [self.starttag(node, 'div', CLASS='footer'),
'\n']
footer.extend(self.body[start:])
footer.append('\n\n')
self.footer.extend(footer)
self.body_suffix[:0] = footer
del self.body[start:]
# footnotes
# ---------
# use definition list instead of table for footnote text
# TODO: use the new HTML5 element