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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# :Author: David Goodger, Günter Milde
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# Based on the html4css1 writer by David Goodger.
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# :Maintainer: docutils-develop@lists.sourceforge.net
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# :Revision: $Revision: 8244 $
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# :Date: $Date: 2005-06-28$
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# :Copyright: © 2016 David Goodger, Günter Milde
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# :License: Released under the terms of the `2-Clause BSD license`_, in short:
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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# This file is offered as-is, without any warranty.
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#
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# .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause
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"""common definitions for Docutils HTML writers"""
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import sys
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import os.path
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import re
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import urllib.request, urllib.parse, urllib.error
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try: # check for the Python Imaging Library
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import PIL.Image
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except ImportError:
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try: # sometimes PIL modules are put in PYTHONPATH's root
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import Image
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class PIL(object): pass # dummy wrapper
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PIL.Image = Image
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except ImportError:
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PIL = None
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import docutils
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from docutils import nodes, utils, writers, languages, io
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from docutils.utils.error_reporting import SafeString
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from docutils.transforms import writer_aux
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from docutils.utils.math import (unichar2tex, pick_math_environment,
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math2html, latex2mathml, tex2mathml_extern)
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class Writer(writers.Writer):
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supported = ('html', 'xhtml') # update in subclass
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"""Formats this writer supports."""
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# default_stylesheets = [] # set in subclass!
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# default_stylesheet_dirs = ['.'] # set in subclass!
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default_template = 'template.txt'
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# default_template_path = ... # set in subclass!
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# settings_spec = ... # set in subclass!
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settings_defaults = {'output_encoding_error_handler': 'xmlcharrefreplace'}
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# config_section = ... # set in subclass!
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config_section_dependencies = ['writers', 'html writers']
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visitor_attributes = (
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'head_prefix', 'head', 'stylesheet', 'body_prefix',
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'body_pre_docinfo', 'docinfo', 'body', 'body_suffix',
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'title', 'subtitle', 'header', 'footer', 'meta', 'fragment',
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'html_prolog', 'html_head', 'html_title', 'html_subtitle',
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'html_body')
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def get_transforms(self):
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return writers.Writer.get_transforms(self) + [writer_aux.Admonitions]
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def translate(self):
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self.visitor = visitor = self.translator_class(self.document)
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self.document.walkabout(visitor)
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for attr in self.visitor_attributes:
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setattr(self, attr, getattr(visitor, attr))
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self.output = self.apply_template()
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def apply_template(self):
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template_file = open(self.document.settings.template, 'rb')
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template = str(template_file.read(), 'utf-8')
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template_file.close()
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subs = self.interpolation_dict()
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return template % subs
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def interpolation_dict(self):
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subs = {}
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settings = self.document.settings
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for attr in self.visitor_attributes:
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subs[attr] = ''.join(getattr(self, attr)).rstrip('\n')
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subs['encoding'] = settings.output_encoding
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subs['version'] = docutils.__version__
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return subs
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def assemble_parts(self):
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writers.Writer.assemble_parts(self)
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for part in self.visitor_attributes:
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self.parts[part] = ''.join(getattr(self, part))
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class HTMLTranslator(nodes.NodeVisitor):
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"""
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Generic Docutils to HTML translator.
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See the `html4css1` and `html5_polyglot` writers for full featured
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HTML writers.
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.. IMPORTANT::
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The `visit_*` and `depart_*` methods use a
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heterogeneous stack, `self.context`.
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When subclassing, make sure to be consistent in its use!
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Examples for robust coding:
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a) Override both `visit_*` and `depart_*` methods, don't call the
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parent functions.
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b) Extend both and unconditionally call the parent functions::
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def visit_example(self, node):
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if foo:
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self.body.append('<div class="foo">')
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html4css1.HTMLTranslator.visit_example(self, node)
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def depart_example(self, node):
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html4css1.HTMLTranslator.depart_example(self, node)
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if foo:
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self.body.append('</div>')
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c) Extend both, calling the parent functions under the same
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conditions::
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def visit_example(self, node):
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if foo:
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self.body.append('<div class="foo">\n')
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else: # call the parent method
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_html_base.HTMLTranslator.visit_example(self, node)
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def depart_example(self, node):
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if foo:
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self.body.append('</div>\n')
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else: # call the parent method
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_html_base.HTMLTranslator.depart_example(self, node)
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d) Extend one method (call the parent), but don't otherwise use the
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`self.context` stack::
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def depart_example(self, node):
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_html_base.HTMLTranslator.depart_example(self, node)
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if foo:
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# implementation-specific code
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# that does not use `self.context`
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self.body.append('</div>\n')
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This way, changes in stack use will not bite you.
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"""
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xml_declaration = '<?xml version="1.0" encoding="%s" ?>\n'
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doctype = '<!DOCTYPE html>\n'
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doctype_mathml = doctype
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head_prefix_template = ('<html xmlns="http://www.w3.org/1999/xhtml"'
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' xml:lang="%(lang)s" lang="%(lang)s">\n<head>\n')
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content_type = ('<meta charset="%s"/>\n')
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generator = ('<meta name="generator" content="Docutils %s: '
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'http://docutils.sourceforge.net/" />\n')
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# Template for the MathJax script in the header:
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mathjax_script = '<script type="text/javascript" src="%s"></script>\n'
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mathjax_url = 'file:/usr/share/javascript/mathjax/MathJax.js'
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"""
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URL of the MathJax javascript library.
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The MathJax library ought to be installed on the same
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server as the rest of the deployed site files and specified
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in the `math-output` setting appended to "mathjax".
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See `Docutils Configuration`__.
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__ http://docutils.sourceforge.net/docs/user/config.html#math-output
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The fallback tries a local MathJax installation at
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``/usr/share/javascript/mathjax/MathJax.js``.
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"""
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stylesheet_link = '<link rel="stylesheet" href="%s" type="text/css" />\n'
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embedded_stylesheet = '<style type="text/css">\n\n%s\n</style>\n'
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words_and_spaces = re.compile(r'[^ \n]+| +|\n')
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# wrap point inside word:
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in_word_wrap_point = re.compile(r'.+\W\W.+|[-?].+', re.U)
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lang_attribute = 'lang' # name changes to 'xml:lang' in XHTML 1.1
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special_characters = {ord('&'): '&',
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ord('<'): '<',
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ord('"'): '"',
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ord('>'): '>',
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ord('@'): '@', # may thwart address harvesters
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}
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"""Character references for characters with a special meaning in HTML."""
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def __init__(self, document):
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nodes.NodeVisitor.__init__(self, document)
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self.settings = settings = document.settings
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lcode = settings.language_code
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self.language = languages.get_language(lcode, document.reporter)
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self.meta = [self.generator % docutils.__version__]
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self.head_prefix = []
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self.html_prolog = []
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if settings.xml_declaration:
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self.head_prefix.append(self.xml_declaration
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% settings.output_encoding)
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# self.content_type = ""
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# encoding not interpolated:
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self.html_prolog.append(self.xml_declaration)
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self.head = self.meta[:]
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self.stylesheet = [self.stylesheet_call(path)
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for path in utils.get_stylesheet_list(settings)]
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self.body_prefix = ['</head>\n<body>\n']
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# document title, subtitle display
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self.body_pre_docinfo = []
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# author, date, etc.
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self.docinfo = []
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self.body = []
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self.fragment = []
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self.body_suffix = ['</body>\n</html>\n']
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self.section_level = 0
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self.initial_header_level = int(settings.initial_header_level)
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self.math_output = settings.math_output.split()
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self.math_output_options = self.math_output[1:]
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self.math_output = self.math_output[0].lower()
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self.context = []
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"""Heterogeneous stack.
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Used by visit_* and depart_* functions in conjunction with the tree
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traversal. Make sure that the pops correspond to the pushes."""
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self.topic_classes = [] # TODO: replace with self_in_contents
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self.colspecs = []
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self.compact_p = True
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self.compact_simple = False
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self.compact_field_list = False
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self.in_docinfo = False
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self.in_sidebar = False
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self.in_footnote_list = False
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self.title = []
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self.subtitle = []
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self.header = []
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self.footer = []
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self.html_head = [self.content_type] # charset not interpolated
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self.html_title = []
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self.html_subtitle = []
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self.html_body = []
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self.in_document_title = 0 # len(self.body) or 0
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self.in_mailto = False
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self.author_in_authors = False # for html4css1
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self.math_header = []
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def astext(self):
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return ''.join(self.head_prefix + self.head
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+ self.stylesheet + self.body_prefix
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+ self.body_pre_docinfo + self.docinfo
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+ self.body + self.body_suffix)
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def encode(self, text):
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"""Encode special characters in `text` & return."""
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# Use only named entities known in both XML and HTML
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# other characters are automatically encoded "by number" if required.
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# @@@ A codec to do these and all other HTML entities would be nice.
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text = str(text)
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return text.translate(self.special_characters)
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def cloak_mailto(self, uri):
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"""Try to hide a mailto: URL from harvesters."""
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# Encode "@" using a URL octet reference (see RFC 1738).
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# Further cloaking with HTML entities will be done in the
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# `attval` function.
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return uri.replace('@', '%40')
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def cloak_email(self, addr):
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"""Try to hide the link text of a email link from harversters."""
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# Surround at-signs and periods with <span> tags. ("@" has
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# already been encoded to "@" by the `encode` method.)
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addr = addr.replace('@', '<span>@</span>')
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addr = addr.replace('.', '<span>.</span>')
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return addr
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def attval(self, text,
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whitespace=re.compile('[\n\r\t\v\f]')):
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"""Cleanse, HTML encode, and return attribute value text."""
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encoded = self.encode(whitespace.sub(' ', text))
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if self.in_mailto and self.settings.cloak_email_addresses:
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# Cloak at-signs ("%40") and periods with HTML entities.
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encoded = encoded.replace('%40', '%40')
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encoded = encoded.replace('.', '.')
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return encoded
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def stylesheet_call(self, path):
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"""Return code to reference or embed stylesheet file `path`"""
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if self.settings.embed_stylesheet:
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try:
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content = io.FileInput(source_path=path,
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encoding='utf-8').read()
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self.settings.record_dependencies.add(path)
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except IOError as err:
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msg = "Cannot embed stylesheet '%s': %s." % (
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path, SafeString(err.strerror))
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self.document.reporter.error(msg)
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return '<--- %s --->\n' % msg
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return self.embedded_stylesheet % content
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# else link to style file:
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if self.settings.stylesheet_path:
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# adapt path relative to output (cf. config.html#stylesheet-path)
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path = utils.relative_path(self.settings._destination, path)
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return self.stylesheet_link % self.encode(path)
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def starttag(self, node, tagname, suffix='\n', empty=False, **attributes):
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"""
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Construct and return a start tag given a node (id & class attributes
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are extracted), tag name, and optional attributes.
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"""
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tagname = tagname.lower()
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prefix = []
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atts = {}
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ids = []
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for (name, value) in list(attributes.items()):
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atts[name.lower()] = value
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classes = []
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languages = []
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# unify class arguments and move language specification
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for cls in node.get('classes', []) + atts.pop('class', '').split() :
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if cls.startswith('language-'):
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languages.append(cls[9:])
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elif cls.strip() and cls not in classes:
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classes.append(cls)
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if languages:
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# attribute name is 'lang' in XHTML 1.0 but 'xml:lang' in 1.1
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atts[self.lang_attribute] = languages[0]
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if classes:
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atts['class'] = ' '.join(classes)
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assert 'id' not in atts
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ids.extend(node.get('ids', []))
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if 'ids' in atts:
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ids.extend(atts['ids'])
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del atts['ids']
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if ids:
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atts['id'] = ids[0]
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for id in ids[1:]:
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# Add empty "span" elements for additional IDs. Note
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# that we cannot use empty "a" elements because there
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# may be targets inside of references, but nested "a"
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# elements aren't allowed in XHTML (even if they do
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# not all have a "href" attribute).
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if empty or isinstance(node,
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(nodes.bullet_list, nodes.docinfo,
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nodes.definition_list, nodes.enumerated_list,
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nodes.field_list, nodes.option_list,
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nodes.table)):
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# Insert target right in front of element.
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prefix.append('<span id="%s"></span>' % id)
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else:
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# Non-empty tag. Place the auxiliary <span> tag
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# *inside* the element, as the first child.
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suffix += '<span id="%s"></span>' % id
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attlist = list(atts.items())
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attlist.sort()
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parts = [tagname]
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for name, value in attlist:
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# value=None was used for boolean attributes without
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# value, but this isn't supported by XHTML.
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assert value is not None
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if isinstance(value, list):
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values = [str(v) for v in value]
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parts.append('%s="%s"' % (name.lower(),
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self.attval(' '.join(values))))
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else:
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parts.append('%s="%s"' % (name.lower(),
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self.attval(str(value))))
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if empty:
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infix = ' /'
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else:
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infix = ''
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return ''.join(prefix) + '<%s%s>' % (' '.join(parts), infix) + suffix
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def emptytag(self, node, tagname, suffix='\n', **attributes):
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"""Construct and return an XML-compatible empty tag."""
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return self.starttag(node, tagname, suffix, empty=True, **attributes)
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def set_class_on_child(self, node, class_, index=0):
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"""
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Set class `class_` on the visible child no. index of `node`.
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Do nothing if node has fewer children than `index`.
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"""
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children = [n for n in node if not isinstance(n, nodes.Invisible)]
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try:
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child = children[index]
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except IndexError:
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return
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child['classes'].append(class_)
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def visit_Text(self, node):
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text = node.astext()
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encoded = self.encode(text)
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if self.in_mailto and self.settings.cloak_email_addresses:
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encoded = self.cloak_email(encoded)
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self.body.append(encoded)
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def depart_Text(self, node):
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pass
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def visit_abbreviation(self, node):
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|
# @@@ implementation incomplete ("title" attribute)
|
|
|
self.body.append(self.starttag(node, 'abbr', ''))
|
|
|
|
|
|
def depart_abbreviation(self, node):
|
|
|
self.body.append('</abbr>')
|
|
|
|
|
|
def visit_acronym(self, node):
|
|
|
# @@@ implementation incomplete ("title" attribute)
|
|
|
self.body.append(self.starttag(node, 'acronym', ''))
|
|
|
|
|
|
def depart_acronym(self, node):
|
|
|
self.body.append('</acronym>')
|
|
|
|
|
|
def visit_address(self, node):
|
|
|
self.visit_docinfo_item(node, 'address', meta=False)
|
|
|
self.body.append(self.starttag(node, 'pre',
|
|
|
suffix= '', CLASS='address'))
|
|
|
|
|
|
def depart_address(self, node):
|
|
|
self.body.append('\n</pre>\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('</div>\n')
|
|
|
|
|
|
attribution_formats = {'dash': ('\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'))
|
|
|
|
|
|
def depart_attribution(self, node):
|
|
|
self.body.append(self.context.pop() + '</p>\n')
|
|
|
|
|
|
def visit_author(self, node):
|
|
|
if not(isinstance(node.parent, nodes.authors)):
|
|
|
self.visit_docinfo_item(node, 'author')
|
|
|
self.body.append('<p>')
|
|
|
|
|
|
def depart_author(self, node):
|
|
|
self.body.append('</p>')
|
|
|
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')
|
|
|
|
|
|
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('</blockquote>\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 False
|
|
|
else:
|
|
|
return True
|
|
|
|
|
|
# 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']:
|
|
|
return True
|
|
|
if 'open' in node['classes']:
|
|
|
return False
|
|
|
# check config setting:
|
|
|
if (isinstance(node, (nodes.field_list, nodes.definition_list))
|
|
|
and not self.settings.compact_field_lists):
|
|
|
# print "`compact-field-lists` is False"
|
|
|
return False
|
|
|
if (isinstance(node, (nodes.enumerated_list, 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:
|
|
|
return self.check_simple_list(node)
|
|
|
|
|
|
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('</ul>\n')
|
|
|
|
|
|
def visit_caption(self, node):
|
|
|
self.body.append(self.starttag(node, 'p', '', CLASS='caption'))
|
|
|
|
|
|
def depart_caption(self, node):
|
|
|
self.body.append('</p>\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('<dl class="citation">\n')
|
|
|
self.in_footnote_list = True
|
|
|
|
|
|
def depart_citation(self, node):
|
|
|
self.body.append('</dd>\n')
|
|
|
if not isinstance(node.next_node(descend=False, siblings=True),
|
|
|
nodes.citation):
|
|
|
self.body.append('</dl>\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(']</a>')
|
|
|
|
|
|
# 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('</span>')
|
|
|
|
|
|
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):
|
|
|
# write out <colgroup> when all colspecs are processed
|
|
|
if isinstance(node.next_node(descend=False, siblings=True),
|
|
|
nodes.colspec):
|
|
|
return
|
|
|
if 'colwidths-auto' in node.parent.parent['classes'] or (
|
|
|
'colwidths-auto' in self.settings.table_style and
|
|
|
('colwidths-given' not in node.parent.parent['classes'])):
|
|
|
return
|
|
|
total_width = sum(node['colwidth'] for node in self.colspecs)
|
|
|
self.body.append(self.starttag(node, 'colgroup'))
|
|
|
for node in self.colspecs:
|
|
|
colwidth = int(node['colwidth'] * 100.0 / total_width + 0.5)
|
|
|
self.body.append(self.emptytag(node, 'col',
|
|
|
style='width: %i%%' % colwidth))
|
|
|
self.body.append('</colgroup>\n')
|
|
|
|
|
|
def visit_comment(self, node,
|
|
|
sub=re.compile('-(?=-)').sub):
|
|
|
"""Escape double-dashes in comment text."""
|
|
|
self.body.append('<!-- %s -->\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('</div>\n')
|
|
|
|
|
|
def visit_container(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', CLASS='docutils container'))
|
|
|
|
|
|
def depart_container(self, node):
|
|
|
self.body.append('</div>\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')
|
|
|
|
|
|
def depart_copyright(self, node):
|
|
|
self.depart_docinfo_item()
|
|
|
|
|
|
def visit_date(self, node):
|
|
|
self.visit_docinfo_item(node, 'date')
|
|
|
|
|
|
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('</dt>\n')
|
|
|
self.body.append(self.starttag(node, 'dd', ''))
|
|
|
|
|
|
def depart_definition(self, node):
|
|
|
self.body.append('</dd>\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('</dl>\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('</dd>\n')
|
|
|
|
|
|
def visit_docinfo(self, node):
|
|
|
self.context.append(len(self.body))
|
|
|
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('</dl>\n')
|
|
|
start = self.context.pop()
|
|
|
self.docinfo = self.body[start:]
|
|
|
self.body = []
|
|
|
|
|
|
def visit_docinfo_item(self, node, name, meta=True):
|
|
|
if meta:
|
|
|
meta_tag = '<meta name="%s" content="%s" />\n' \
|
|
|
% (name, self.attval(node.astext()))
|
|
|
self.add_meta(meta_tag)
|
|
|
self.body.append('<dt class="%s">%s</dt>\n'
|
|
|
% (name, self.language.labels[name]))
|
|
|
self.body.append(self.starttag(node, 'dd', '', CLASS=name))
|
|
|
|
|
|
def depart_docinfo_item(self):
|
|
|
self.body.append('</dd>\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</pre>\n')
|
|
|
|
|
|
def visit_document(self, node):
|
|
|
title = (node.get('title', '') or os.path.basename(node['source'])
|
|
|
or 'docutils document without title')
|
|
|
self.head.append('<title>%s</title>\n' % self.encode(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 'name="dcterms.' in ''.join(self.meta):
|
|
|
self.head.append(
|
|
|
'<link rel="schema.dcterms" href="http://purl.org/dc/terms/">')
|
|
|
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, '</div>\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('</em>')
|
|
|
|
|
|
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 does 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):
|
|
|
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('</ol>\n')
|
|
|
|
|
|
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('</dl>\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('</dt>\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('<p></p>')
|
|
|
|
|
|
def depart_field_body(self, node):
|
|
|
self.body.append('</dd>\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('</div>\n')
|
|
|
|
|
|
# use HTML 5 <footer> 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'),
|
|
|
'<hr class="footer" />\n']
|
|
|
footer.extend(self.body[start:])
|
|
|
footer.append('\n</div>\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 <aside>? (Also for footnote text)
|
|
|
def visit_footnote(self, node):
|
|
|
if not self.in_footnote_list:
|
|
|
classes = 'footnote ' + self.settings.footnote_references
|
|
|
self.body.append('<dl class="%s">\n'%classes)
|
|
|
self.in_footnote_list = True
|
|
|
|
|
|
def depart_footnote(self, node):
|
|
|
self.body.append('</dd>\n')
|
|
|
if not isinstance(node.next_node(descend=False, siblings=True),
|
|
|
nodes.footnote):
|
|
|
self.body.append('</dl>\n')
|
|
|
self.in_footnote_list = False
|
|
|
|
|
|
def visit_footnote_reference(self, node):
|
|
|
href = '#' + node['refid']
|
|
|
classes = 'footnote-reference ' + self.settings.footnote_references
|
|
|
self.body.append(self.starttag(node, 'a', '', #suffix,
|
|
|
CLASS=classes, href=href))
|
|
|
|
|
|
def depart_footnote_reference(self, node):
|
|
|
self.body.append('</a>')
|
|
|
|
|
|
# Docutils-generated text: put section numbers in a span for CSS styling:
|
|
|
def visit_generated(self, node):
|
|
|
if 'sectnum' in node['classes']:
|
|
|
# get section number (strip trailing no-break-spaces)
|
|
|
sectnum = node.astext().rstrip(' ')
|
|
|
# print sectnum.encode('utf-8')
|
|
|
self.body.append('<span class="sectnum">%s</span> '
|
|
|
% self.encode(sectnum))
|
|
|
# Content already processed:
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def depart_generated(self, node):
|
|
|
pass
|
|
|
|
|
|
def visit_header(self, node):
|
|
|
self.context.append(len(self.body))
|
|
|
|
|
|
def depart_header(self, node):
|
|
|
start = self.context.pop()
|
|
|
header = [self.starttag(node, 'div', CLASS='header')]
|
|
|
header.extend(self.body[start:])
|
|
|
header.append('\n<hr class="header"/>\n</div>\n')
|
|
|
self.body_prefix.extend(header)
|
|
|
self.header.extend(header)
|
|
|
del self.body[start:]
|
|
|
|
|
|
# Image types to place in an <object> element
|
|
|
object_image_types = {'.swf': 'application/x-shockwave-flash'}
|
|
|
|
|
|
def visit_image(self, node):
|
|
|
atts = {}
|
|
|
uri = node['uri']
|
|
|
ext = os.path.splitext(uri)[1].lower()
|
|
|
if ext in self.object_image_types:
|
|
|
atts['data'] = uri
|
|
|
atts['type'] = self.object_image_types[ext]
|
|
|
else:
|
|
|
atts['src'] = uri
|
|
|
atts['alt'] = node.get('alt', uri)
|
|
|
# image size
|
|
|
if 'width' in node:
|
|
|
atts['width'] = node['width']
|
|
|
if 'height' in node:
|
|
|
atts['height'] = node['height']
|
|
|
if 'scale' in node:
|
|
|
if (PIL and not ('width' in node and 'height' in node)
|
|
|
and self.settings.file_insertion_enabled):
|
|
|
imagepath = urllib.request.url2pathname(uri)
|
|
|
try:
|
|
|
img = PIL.Image.open(
|
|
|
imagepath.encode(sys.getfilesystemencoding()))
|
|
|
except (IOError, UnicodeEncodeError):
|
|
|
pass # TODO: warn?
|
|
|
else:
|
|
|
self.settings.record_dependencies.add(
|
|
|
imagepath.replace('\\', '/'))
|
|
|
if 'width' not in atts:
|
|
|
atts['width'] = '%dpx' % img.size[0]
|
|
|
if 'height' not in atts:
|
|
|
atts['height'] = '%dpx' % img.size[1]
|
|
|
del img
|
|
|
for att_name in 'width', 'height':
|
|
|
if att_name in atts:
|
|
|
match = re.match(r'([0-9.]+)(\S*)$', atts[att_name])
|
|
|
assert match
|
|
|
atts[att_name] = '%s%s' % (
|
|
|
float(match.group(1)) * (float(node['scale']) / 100),
|
|
|
match.group(2))
|
|
|
style = []
|
|
|
for att_name in 'width', 'height':
|
|
|
if att_name in atts:
|
|
|
if re.match(r'^[0-9.]+$', atts[att_name]):
|
|
|
# Interpret unitless values as pixels.
|
|
|
atts[att_name] += 'px'
|
|
|
style.append('%s: %s;' % (att_name, atts[att_name]))
|
|
|
del atts[att_name]
|
|
|
if style:
|
|
|
atts['style'] = ' '.join(style)
|
|
|
if (isinstance(node.parent, nodes.TextElement) or
|
|
|
(isinstance(node.parent, nodes.reference) and
|
|
|
not isinstance(node.parent.parent, nodes.TextElement))):
|
|
|
# Inline context or surrounded by <a>...</a>.
|
|
|
suffix = ''
|
|
|
else:
|
|
|
suffix = '\n'
|
|
|
if 'align' in node:
|
|
|
atts['class'] = 'align-%s' % node['align']
|
|
|
if ext in self.object_image_types:
|
|
|
# do NOT use an empty tag: incorrect rendering in browsers
|
|
|
self.body.append(self.starttag(node, 'object', suffix, **atts) +
|
|
|
node.get('alt', uri) + '</object>' + suffix)
|
|
|
else:
|
|
|
self.body.append(self.emptytag(node, 'img', suffix, **atts))
|
|
|
|
|
|
def depart_image(self, node):
|
|
|
# self.body.append(self.context.pop())
|
|
|
pass
|
|
|
|
|
|
def visit_inline(self, node):
|
|
|
self.body.append(self.starttag(node, 'span', ''))
|
|
|
|
|
|
def depart_inline(self, node):
|
|
|
self.body.append('</span>')
|
|
|
|
|
|
# footnote and citation labels:
|
|
|
def visit_label(self, node):
|
|
|
if (isinstance(node.parent, nodes.footnote)):
|
|
|
classes = self.settings.footnote_references
|
|
|
else:
|
|
|
classes = 'brackets'
|
|
|
# pass parent node to get id into starttag:
|
|
|
self.body.append(self.starttag(node.parent, 'dt', '', CLASS='label'))
|
|
|
self.body.append(self.starttag(node, 'span', '', CLASS=classes))
|
|
|
# footnote/citation backrefs:
|
|
|
if self.settings.footnote_backlinks:
|
|
|
backrefs = node.parent['backrefs']
|
|
|
if len(backrefs) == 1:
|
|
|
self.body.append('<a class="fn-backref" href="#%s">'
|
|
|
% backrefs[0])
|
|
|
|
|
|
def depart_label(self, node):
|
|
|
if self.settings.footnote_backlinks:
|
|
|
backrefs = node.parent['backrefs']
|
|
|
if len(backrefs) == 1:
|
|
|
self.body.append('</a>')
|
|
|
self.body.append('</span>')
|
|
|
if self.settings.footnote_backlinks and len(backrefs) > 1:
|
|
|
backlinks = ['<a href="#%s">%s</a>' % (ref, i)
|
|
|
for (i, ref) in enumerate(backrefs, 1)]
|
|
|
self.body.append('<span class="fn-backref">(%s)</span>'
|
|
|
% ','.join(backlinks))
|
|
|
self.body.append('</dt>\n<dd>')
|
|
|
|
|
|
def visit_legend(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', CLASS='legend'))
|
|
|
|
|
|
def depart_legend(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
|
|
|
def visit_line(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', suffix='', CLASS='line'))
|
|
|
if not len(node):
|
|
|
self.body.append('<br />')
|
|
|
|
|
|
def depart_line(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
|
|
|
def visit_line_block(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', CLASS='line-block'))
|
|
|
|
|
|
def depart_line_block(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
|
|
|
def visit_list_item(self, node):
|
|
|
self.body.append(self.starttag(node, 'li', ''))
|
|
|
|
|
|
def depart_list_item(self, node):
|
|
|
self.body.append('</li>\n')
|
|
|
|
|
|
# inline literal
|
|
|
def visit_literal(self, node):
|
|
|
# special case: "code" role
|
|
|
classes = node.get('classes', [])
|
|
|
if 'code' in classes:
|
|
|
# filter 'code' from class arguments
|
|
|
node['classes'] = [cls for cls in classes if cls != 'code']
|
|
|
self.body.append(self.starttag(node, 'code', ''))
|
|
|
return
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'span', '', CLASS='docutils literal'))
|
|
|
text = node.astext()
|
|
|
# remove hard line breaks (except if in a parsed-literal block)
|
|
|
if not isinstance(node.parent, nodes.literal_block):
|
|
|
text = text.replace('\n', ' ')
|
|
|
# Protect text like ``--an-option`` and the regular expression
|
|
|
# ``[+]?(\d+(\.\d*)?|\.\d+)`` from bad line wrapping
|
|
|
for token in self.words_and_spaces.findall(text):
|
|
|
if token.strip() and self.in_word_wrap_point.search(token):
|
|
|
self.body.append('<span class="pre">%s</span>'
|
|
|
% self.encode(token))
|
|
|
else:
|
|
|
self.body.append(self.encode(token))
|
|
|
self.body.append('</span>')
|
|
|
# Content already processed:
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def depart_literal(self, node):
|
|
|
# skipped unless literal element is from "code" role:
|
|
|
self.body.append('</code>')
|
|
|
|
|
|
def visit_literal_block(self, node):
|
|
|
self.body.append(self.starttag(node, 'pre', '', CLASS='literal-block'))
|
|
|
if 'code' in node.get('classes', []):
|
|
|
self.body.append('<code>')
|
|
|
|
|
|
def depart_literal_block(self, node):
|
|
|
if 'code' in node.get('classes', []):
|
|
|
self.body.append('</code>')
|
|
|
self.body.append('</pre>\n')
|
|
|
|
|
|
# Mathematics:
|
|
|
# As there is no native HTML math support, we provide alternatives
|
|
|
# for the math-output: LaTeX and MathJax simply wrap the content,
|
|
|
# HTML and MathML also convert the math_code.
|
|
|
# HTML container
|
|
|
math_tags = {# math_output: (block, inline, class-arguments)
|
|
|
'mathml': ('div', '', ''),
|
|
|
'html': ('div', 'span', 'formula'),
|
|
|
'mathjax': ('div', 'span', 'math'),
|
|
|
'latex': ('pre', 'tt', 'math'),
|
|
|
}
|
|
|
|
|
|
def visit_math(self, node, math_env=''):
|
|
|
# If the method is called from visit_math_block(), math_env != ''.
|
|
|
|
|
|
if self.math_output not in self.math_tags:
|
|
|
self.document.reporter.error(
|
|
|
'math-output format "%s" not supported '
|
|
|
'falling back to "latex"'% self.math_output)
|
|
|
self.math_output = 'latex'
|
|
|
tag = self.math_tags[self.math_output][math_env == '']
|
|
|
clsarg = self.math_tags[self.math_output][2]
|
|
|
# LaTeX container
|
|
|
wrappers = {# math_mode: (inline, block)
|
|
|
'mathml': ('$%s$', '\\begin{%s}\n%s\n\\end{%s}'),
|
|
|
'html': ('$%s$', '\\begin{%s}\n%s\n\\end{%s}'),
|
|
|
'mathjax': (r'\(%s\)', '\\begin{%s}\n%s\n\\end{%s}'),
|
|
|
'latex': (None, None),
|
|
|
}
|
|
|
wrapper = wrappers[self.math_output][math_env != '']
|
|
|
if self.math_output == 'mathml' and (not self.math_output_options or
|
|
|
self.math_output_options[0] == 'blahtexml'):
|
|
|
wrapper = None
|
|
|
# get and wrap content
|
|
|
math_code = node.astext().translate(unichar2tex.uni2tex_table)
|
|
|
if wrapper:
|
|
|
try: # wrapper with three "%s"
|
|
|
math_code = wrapper % (math_env, math_code, math_env)
|
|
|
except TypeError: # wrapper with one "%s"
|
|
|
math_code = wrapper % math_code
|
|
|
# settings and conversion
|
|
|
if self.math_output in ('latex', 'mathjax'):
|
|
|
math_code = self.encode(math_code)
|
|
|
if self.math_output == 'mathjax' and not self.math_header:
|
|
|
try:
|
|
|
self.mathjax_url = self.math_output_options[0]
|
|
|
except IndexError:
|
|
|
self.document.reporter.warning('No MathJax URL specified, '
|
|
|
'using local fallback (see config.html)')
|
|
|
# append configuration, if not already present in the URL:
|
|
|
# input LaTeX with AMS, output common HTML
|
|
|
if '?' not in self.mathjax_url:
|
|
|
self.mathjax_url += '?config=TeX-AMS_CHTML'
|
|
|
self.math_header = [self.mathjax_script % self.mathjax_url]
|
|
|
elif self.math_output == 'html':
|
|
|
if self.math_output_options and not self.math_header:
|
|
|
self.math_header = [self.stylesheet_call(
|
|
|
utils.find_file_in_dirs(s, self.settings.stylesheet_dirs))
|
|
|
for s in self.math_output_options[0].split(',')]
|
|
|
# TODO: fix display mode in matrices and fractions
|
|
|
math2html.DocumentParameters.displaymode = (math_env != '')
|
|
|
math_code = math2html.math2html(math_code)
|
|
|
elif self.math_output == 'mathml':
|
|
|
if 'XHTML 1' in self.doctype:
|
|
|
self.doctype = self.doctype_mathml
|
|
|
self.content_type = self.content_type_mathml
|
|
|
converter = ' '.join(self.math_output_options).lower()
|
|
|
try:
|
|
|
if converter == 'latexml':
|
|
|
math_code = tex2mathml_extern.latexml(math_code,
|
|
|
self.document.reporter)
|
|
|
elif converter == 'ttm':
|
|
|
math_code = tex2mathml_extern.ttm(math_code,
|
|
|
self.document.reporter)
|
|
|
elif converter == 'blahtexml':
|
|
|
math_code = tex2mathml_extern.blahtexml(math_code,
|
|
|
inline=not(math_env),
|
|
|
reporter=self.document.reporter)
|
|
|
elif not converter:
|
|
|
math_code = latex2mathml.tex2mathml(math_code,
|
|
|
inline=not(math_env))
|
|
|
else:
|
|
|
self.document.reporter.error('option "%s" not supported '
|
|
|
'with math-output "MathML"')
|
|
|
except OSError:
|
|
|
raise OSError('is "latexmlmath" in your PATH?')
|
|
|
except SyntaxError as err:
|
|
|
err_node = self.document.reporter.error(err, base_node=node)
|
|
|
self.visit_system_message(err_node)
|
|
|
self.body.append(self.starttag(node, 'p'))
|
|
|
self.body.append(','.join(err.args))
|
|
|
self.body.append('</p>\n')
|
|
|
self.body.append(self.starttag(node, 'pre',
|
|
|
CLASS='literal-block'))
|
|
|
self.body.append(self.encode(math_code))
|
|
|
self.body.append('\n</pre>\n')
|
|
|
self.depart_system_message(err_node)
|
|
|
raise nodes.SkipNode
|
|
|
# append to document body
|
|
|
if tag:
|
|
|
self.body.append(self.starttag(node, tag,
|
|
|
suffix='\n'*bool(math_env),
|
|
|
CLASS=clsarg))
|
|
|
self.body.append(math_code)
|
|
|
if math_env: # block mode (equation, display)
|
|
|
self.body.append('\n')
|
|
|
if tag:
|
|
|
self.body.append('</%s>' % tag)
|
|
|
if math_env:
|
|
|
self.body.append('\n')
|
|
|
# Content already processed:
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def depart_math(self, node):
|
|
|
pass # never reached
|
|
|
|
|
|
def visit_math_block(self, node):
|
|
|
# print node.astext().encode('utf8')
|
|
|
math_env = pick_math_environment(node.astext())
|
|
|
self.visit_math(node, math_env=math_env)
|
|
|
|
|
|
def depart_math_block(self, node):
|
|
|
pass # never reached
|
|
|
|
|
|
# Meta tags: 'lang' attribute replaced by 'xml:lang' in XHTML 1.1
|
|
|
# HTML5/polyglot recommends using both
|
|
|
def visit_meta(self, node):
|
|
|
meta = self.emptytag(node, 'meta', **node.non_default_attributes())
|
|
|
self.add_meta(meta)
|
|
|
|
|
|
def depart_meta(self, node):
|
|
|
pass
|
|
|
|
|
|
def add_meta(self, tag):
|
|
|
self.meta.append(tag)
|
|
|
self.head.append(tag)
|
|
|
|
|
|
def visit_option(self, node):
|
|
|
self.body.append(self.starttag(node, 'span', '', CLASS='option'))
|
|
|
|
|
|
def depart_option(self, node):
|
|
|
self.body.append('</span>')
|
|
|
if isinstance(node.next_node(descend=False, siblings=True),
|
|
|
nodes.option):
|
|
|
self.body.append(', ')
|
|
|
|
|
|
def visit_option_argument(self, node):
|
|
|
self.body.append(node.get('delimiter', ' '))
|
|
|
self.body.append(self.starttag(node, 'var', ''))
|
|
|
|
|
|
def depart_option_argument(self, node):
|
|
|
self.body.append('</var>')
|
|
|
|
|
|
def visit_option_group(self, node):
|
|
|
self.body.append(self.starttag(node, 'dt', ''))
|
|
|
self.body.append('<kbd>')
|
|
|
|
|
|
def depart_option_group(self, node):
|
|
|
self.body.append('</kbd></dt>\n')
|
|
|
|
|
|
def visit_option_list(self, node):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'dl', CLASS='option-list'))
|
|
|
|
|
|
def depart_option_list(self, node):
|
|
|
self.body.append('</dl>\n')
|
|
|
|
|
|
def visit_option_list_item(self, node):
|
|
|
pass
|
|
|
|
|
|
def depart_option_list_item(self, node):
|
|
|
pass
|
|
|
|
|
|
def visit_option_string(self, node):
|
|
|
pass
|
|
|
|
|
|
def depart_option_string(self, node):
|
|
|
pass
|
|
|
|
|
|
def visit_organization(self, node):
|
|
|
self.visit_docinfo_item(node, 'organization')
|
|
|
|
|
|
def depart_organization(self, node):
|
|
|
self.depart_docinfo_item()
|
|
|
|
|
|
# Do not omit <p> tags
|
|
|
# --------------------
|
|
|
#
|
|
|
# The HTML4CSS1 writer does this to "produce
|
|
|
# visually compact lists (less vertical whitespace)". This writer
|
|
|
# relies on CSS rules for"visual compactness".
|
|
|
#
|
|
|
# * In XHTML 1.1, e.g. a <blockquote> element may not contain
|
|
|
# character data, so you cannot drop the <p> tags.
|
|
|
# * Keeping simple paragraphs in the field_body enables a CSS
|
|
|
# rule to start the field-body on a new line if the label is too long
|
|
|
# * it makes the code simpler.
|
|
|
#
|
|
|
# TODO: omit paragraph tags in simple table cells?
|
|
|
|
|
|
def visit_paragraph(self, node):
|
|
|
self.body.append(self.starttag(node, 'p', ''))
|
|
|
|
|
|
def depart_paragraph(self, node):
|
|
|
self.body.append('</p>')
|
|
|
if not (isinstance(node.parent, (nodes.list_item, nodes.entry)) and
|
|
|
(len(node.parent) == 1)):
|
|
|
self.body.append('\n')
|
|
|
|
|
|
def visit_problematic(self, node):
|
|
|
if node.hasattr('refid'):
|
|
|
self.body.append('<a href="#%s">' % node['refid'])
|
|
|
self.context.append('</a>')
|
|
|
else:
|
|
|
self.context.append('')
|
|
|
self.body.append(self.starttag(node, 'span', '', CLASS='problematic'))
|
|
|
|
|
|
def depart_problematic(self, node):
|
|
|
self.body.append('</span>')
|
|
|
self.body.append(self.context.pop())
|
|
|
|
|
|
def visit_raw(self, node):
|
|
|
if 'html' in node.get('format', '').split():
|
|
|
t = isinstance(node.parent, nodes.TextElement) and 'span' or 'div'
|
|
|
if node['classes']:
|
|
|
self.body.append(self.starttag(node, t, suffix=''))
|
|
|
self.body.append(node.astext())
|
|
|
if node['classes']:
|
|
|
self.body.append('</%s>' % t)
|
|
|
# Keep non-HTML raw text out of output:
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def visit_reference(self, node):
|
|
|
atts = {'class': 'reference'}
|
|
|
if 'refuri' in node:
|
|
|
atts['href'] = node['refuri']
|
|
|
if ( self.settings.cloak_email_addresses
|
|
|
and atts['href'].startswith('mailto:')):
|
|
|
atts['href'] = self.cloak_mailto(atts['href'])
|
|
|
self.in_mailto = True
|
|
|
atts['class'] += ' external'
|
|
|
else:
|
|
|
assert 'refid' in node, \
|
|
|
'References must have "refuri" or "refid" attribute.'
|
|
|
atts['href'] = '#' + node['refid']
|
|
|
atts['class'] += ' internal'
|
|
|
if not isinstance(node.parent, nodes.TextElement):
|
|
|
assert len(node) == 1 and isinstance(node[0], nodes.image)
|
|
|
atts['class'] += ' image-reference'
|
|
|
self.body.append(self.starttag(node, 'a', '', **atts))
|
|
|
|
|
|
def depart_reference(self, node):
|
|
|
self.body.append('</a>')
|
|
|
if not isinstance(node.parent, nodes.TextElement):
|
|
|
self.body.append('\n')
|
|
|
self.in_mailto = False
|
|
|
|
|
|
def visit_revision(self, node):
|
|
|
self.visit_docinfo_item(node, 'revision', meta=False)
|
|
|
|
|
|
def depart_revision(self, node):
|
|
|
self.depart_docinfo_item()
|
|
|
|
|
|
def visit_row(self, node):
|
|
|
self.body.append(self.starttag(node, 'tr', ''))
|
|
|
node.column = 0
|
|
|
|
|
|
def depart_row(self, node):
|
|
|
self.body.append('</tr>\n')
|
|
|
|
|
|
def visit_rubric(self, node):
|
|
|
self.body.append(self.starttag(node, 'p', '', CLASS='rubric'))
|
|
|
|
|
|
def depart_rubric(self, node):
|
|
|
self.body.append('</p>\n')
|
|
|
|
|
|
# TODO: use the new HTML 5 element <section>?
|
|
|
def visit_section(self, node):
|
|
|
self.section_level += 1
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'div', CLASS='section'))
|
|
|
|
|
|
def depart_section(self, node):
|
|
|
self.section_level -= 1
|
|
|
self.body.append('</div>\n')
|
|
|
|
|
|
# TODO: use the new HTML5 element <aside>? (Also for footnote text)
|
|
|
def visit_sidebar(self, node):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'div', CLASS='sidebar'))
|
|
|
self.in_sidebar = True
|
|
|
|
|
|
def depart_sidebar(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
self.in_sidebar = False
|
|
|
|
|
|
def visit_status(self, node):
|
|
|
self.visit_docinfo_item(node, 'status', meta=False)
|
|
|
|
|
|
def depart_status(self, node):
|
|
|
self.depart_docinfo_item()
|
|
|
|
|
|
def visit_strong(self, node):
|
|
|
self.body.append(self.starttag(node, 'strong', ''))
|
|
|
|
|
|
def depart_strong(self, node):
|
|
|
self.body.append('</strong>')
|
|
|
|
|
|
def visit_subscript(self, node):
|
|
|
self.body.append(self.starttag(node, 'sub', ''))
|
|
|
|
|
|
def depart_subscript(self, node):
|
|
|
self.body.append('</sub>')
|
|
|
|
|
|
def visit_substitution_definition(self, node):
|
|
|
"""Internal only."""
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
def visit_substitution_reference(self, node):
|
|
|
self.unimplemented_visit(node)
|
|
|
|
|
|
# h1–h6 elements must not be used to markup subheadings, subtitles,
|
|
|
# alternative titles and taglines unless intended to be the heading for a
|
|
|
# new section or subsection.
|
|
|
# -- http://www.w3.org/TR/html/sections.html#headings-and-sections
|
|
|
def visit_subtitle(self, node):
|
|
|
if isinstance(node.parent, nodes.sidebar):
|
|
|
classes = 'sidebar-subtitle'
|
|
|
elif isinstance(node.parent, nodes.document):
|
|
|
classes = 'subtitle'
|
|
|
self.in_document_title = len(self.body)+1
|
|
|
elif isinstance(node.parent, nodes.section):
|
|
|
classes = 'section-subtitle'
|
|
|
self.body.append(self.starttag(node, 'p', '', CLASS=classes))
|
|
|
|
|
|
def depart_subtitle(self, node):
|
|
|
self.body.append('</p>\n')
|
|
|
if isinstance(node.parent, nodes.document):
|
|
|
self.subtitle = self.body[self.in_document_title:-1]
|
|
|
self.in_document_title = 0
|
|
|
self.body_pre_docinfo.extend(self.body)
|
|
|
self.html_subtitle.extend(self.body)
|
|
|
del self.body[:]
|
|
|
|
|
|
def visit_superscript(self, node):
|
|
|
self.body.append(self.starttag(node, 'sup', ''))
|
|
|
|
|
|
def depart_superscript(self, node):
|
|
|
self.body.append('</sup>')
|
|
|
|
|
|
def visit_system_message(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', CLASS='system-message'))
|
|
|
self.body.append('<p class="system-message-title">')
|
|
|
backref_text = ''
|
|
|
if len(node['backrefs']):
|
|
|
backrefs = node['backrefs']
|
|
|
if len(backrefs) == 1:
|
|
|
backref_text = ('; <em><a href="#%s">backlink</a></em>'
|
|
|
% backrefs[0])
|
|
|
else:
|
|
|
i = 1
|
|
|
backlinks = []
|
|
|
for backref in backrefs:
|
|
|
backlinks.append('<a href="#%s">%s</a>' % (backref, i))
|
|
|
i += 1
|
|
|
backref_text = ('; <em>backlinks: %s</em>'
|
|
|
% ', '.join(backlinks))
|
|
|
if node.hasattr('line'):
|
|
|
line = ', line %s' % node['line']
|
|
|
else:
|
|
|
line = ''
|
|
|
self.body.append('System Message: %s/%s '
|
|
|
'(<span class="docutils literal">%s</span>%s)%s</p>\n'
|
|
|
% (node['type'], node['level'],
|
|
|
self.encode(node['source']), line, backref_text))
|
|
|
|
|
|
def depart_system_message(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
|
|
|
def visit_table(self, node):
|
|
|
atts = {}
|
|
|
classes = [cls.strip(' \t\n')
|
|
|
for cls in self.settings.table_style.split(',')]
|
|
|
if 'align' in node:
|
|
|
classes.append('align-%s' % node['align'])
|
|
|
if 'width' in node:
|
|
|
atts['style'] = 'width: %s' % node['width']
|
|
|
tag = self.starttag(node, 'table', CLASS=' '.join(classes), **atts)
|
|
|
self.body.append(tag)
|
|
|
|
|
|
def depart_table(self, node):
|
|
|
self.body.append('</table>\n')
|
|
|
|
|
|
def visit_target(self, node):
|
|
|
if not ('refuri' in node or 'refid' in node
|
|
|
or 'refname' in node):
|
|
|
self.body.append(self.starttag(node, 'span', '', CLASS='target'))
|
|
|
self.context.append('</span>')
|
|
|
else:
|
|
|
self.context.append('')
|
|
|
|
|
|
def depart_target(self, node):
|
|
|
self.body.append(self.context.pop())
|
|
|
|
|
|
# no hard-coded vertical alignment in table body
|
|
|
def visit_tbody(self, node):
|
|
|
self.body.append(self.starttag(node, 'tbody'))
|
|
|
|
|
|
def depart_tbody(self, node):
|
|
|
self.body.append('</tbody>\n')
|
|
|
|
|
|
def visit_term(self, node):
|
|
|
self.body.append(self.starttag(node, 'dt', ''))
|
|
|
|
|
|
def depart_term(self, node):
|
|
|
"""
|
|
|
Leave the end tag to `self.visit_definition()`, in case there's a
|
|
|
classifier.
|
|
|
"""
|
|
|
pass
|
|
|
|
|
|
def visit_tgroup(self, node):
|
|
|
self.colspecs = []
|
|
|
node.stubs = []
|
|
|
|
|
|
def depart_tgroup(self, node):
|
|
|
pass
|
|
|
|
|
|
def visit_thead(self, node):
|
|
|
self.body.append(self.starttag(node, 'thead'))
|
|
|
|
|
|
def depart_thead(self, node):
|
|
|
self.body.append('</thead>\n')
|
|
|
|
|
|
def visit_title(self, node):
|
|
|
"""Only 6 section levels are supported by HTML."""
|
|
|
check_id = 0 # TODO: is this a bool (False) or a counter?
|
|
|
close_tag = '</p>\n'
|
|
|
if isinstance(node.parent, nodes.topic):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'p', '', CLASS='topic-title first'))
|
|
|
elif isinstance(node.parent, nodes.sidebar):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'p', '', CLASS='sidebar-title'))
|
|
|
elif isinstance(node.parent, nodes.Admonition):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'p', '', CLASS='admonition-title'))
|
|
|
elif isinstance(node.parent, nodes.table):
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'caption', ''))
|
|
|
close_tag = '</caption>\n'
|
|
|
elif isinstance(node.parent, nodes.document):
|
|
|
self.body.append(self.starttag(node, 'h1', '', CLASS='title'))
|
|
|
close_tag = '</h1>\n'
|
|
|
self.in_document_title = len(self.body)
|
|
|
else:
|
|
|
assert isinstance(node.parent, nodes.section)
|
|
|
h_level = self.section_level + self.initial_header_level - 1
|
|
|
atts = {}
|
|
|
if (len(node.parent) >= 2 and
|
|
|
isinstance(node.parent[1], nodes.subtitle)):
|
|
|
atts['CLASS'] = 'with-subtitle'
|
|
|
self.body.append(
|
|
|
self.starttag(node, 'h%s' % h_level, '', **atts))
|
|
|
atts = {}
|
|
|
if node.hasattr('refid'):
|
|
|
atts['class'] = 'toc-backref'
|
|
|
atts['href'] = '#' + node['refid']
|
|
|
if atts:
|
|
|
self.body.append(self.starttag({}, 'a', '', **atts))
|
|
|
close_tag = '</a></h%s>\n' % (h_level)
|
|
|
else:
|
|
|
close_tag = '</h%s>\n' % (h_level)
|
|
|
self.context.append(close_tag)
|
|
|
|
|
|
def depart_title(self, node):
|
|
|
self.body.append(self.context.pop())
|
|
|
if self.in_document_title:
|
|
|
self.title = self.body[self.in_document_title:-1]
|
|
|
self.in_document_title = 0
|
|
|
self.body_pre_docinfo.extend(self.body)
|
|
|
self.html_title.extend(self.body)
|
|
|
del self.body[:]
|
|
|
|
|
|
def visit_title_reference(self, node):
|
|
|
self.body.append(self.starttag(node, 'cite', ''))
|
|
|
|
|
|
def depart_title_reference(self, node):
|
|
|
self.body.append('</cite>')
|
|
|
|
|
|
# TODO: use the new HTML5 element <aside>? (Also for footnote text)
|
|
|
def visit_topic(self, node):
|
|
|
self.body.append(self.starttag(node, 'div', CLASS='topic'))
|
|
|
self.topic_classes = node['classes']
|
|
|
# TODO: replace with ::
|
|
|
# self.in_contents = 'contents' in node['classes']
|
|
|
|
|
|
def depart_topic(self, node):
|
|
|
self.body.append('</div>\n')
|
|
|
self.topic_classes = []
|
|
|
# TODO self.in_contents = False
|
|
|
|
|
|
def visit_transition(self, node):
|
|
|
self.body.append(self.emptytag(node, 'hr', CLASS='docutils'))
|
|
|
|
|
|
def depart_transition(self, node):
|
|
|
pass
|
|
|
|
|
|
def visit_version(self, node):
|
|
|
self.visit_docinfo_item(node, 'version', meta=False)
|
|
|
|
|
|
def depart_version(self, node):
|
|
|
self.depart_docinfo_item()
|
|
|
|
|
|
def unimplemented_visit(self, node):
|
|
|
raise NotImplementedError('visiting unimplemented node type: %s'
|
|
|
% node.__class__.__name__)
|
|
|
|
|
|
|
|
|
class SimpleListChecker(nodes.GenericNodeVisitor):
|
|
|
|
|
|
"""
|
|
|
Raise `nodes.NodeFound` if non-simple list item is encountered.
|
|
|
|
|
|
Here "simple" means a list item containing nothing other than a single
|
|
|
paragraph, a simple list, or a paragraph followed by a simple list.
|
|
|
|
|
|
This version also checks for simple field lists and docinfo.
|
|
|
"""
|
|
|
|
|
|
def default_visit(self, node):
|
|
|
raise nodes.NodeFound
|
|
|
|
|
|
def visit_list_item(self, node):
|
|
|
# print "visiting list item", node.__class__
|
|
|
children = [child for child in node.children
|
|
|
if not isinstance(child, nodes.Invisible)]
|
|
|
# print "has %s visible children" % len(children)
|
|
|
if (children and isinstance(children[0], nodes.paragraph)
|
|
|
and (isinstance(children[-1], nodes.bullet_list) or
|
|
|
isinstance(children[-1], nodes.enumerated_list) or
|
|
|
isinstance(children[-1], nodes.field_list))):
|
|
|
children.pop()
|
|
|
# print "%s children remain" % len(children)
|
|
|
if len(children) <= 1:
|
|
|
return
|
|
|
else:
|
|
|
# print "found", child.__class__, "in", node.__class__
|
|
|
raise nodes.NodeFound
|
|
|
|
|
|
def pass_node(self, node):
|
|
|
pass
|
|
|
|
|
|
def ignore_node(self, node):
|
|
|
# ignore nodes that are never complex (can contain only inline nodes)
|
|
|
raise nodes.SkipNode
|
|
|
|
|
|
# Paragraphs and text
|
|
|
visit_Text = ignore_node
|
|
|
visit_paragraph = ignore_node
|
|
|
|
|
|
# Lists
|
|
|
visit_bullet_list = pass_node
|
|
|
visit_enumerated_list = pass_node
|
|
|
visit_docinfo = pass_node
|
|
|
|
|
|
# Docinfo nodes:
|
|
|
visit_author = ignore_node
|
|
|
visit_authors = visit_list_item
|
|
|
visit_address = visit_list_item
|
|
|
visit_contact = pass_node
|
|
|
visit_copyright = ignore_node
|
|
|
visit_date = ignore_node
|
|
|
visit_organization = ignore_node
|
|
|
visit_status = ignore_node
|
|
|
visit_version = visit_list_item
|
|
|
|
|
|
# Definition list:
|
|
|
visit_definition_list = pass_node
|
|
|
visit_definition_list_item = pass_node
|
|
|
visit_term = ignore_node
|
|
|
visit_classifier = pass_node
|
|
|
visit_definition = visit_list_item
|
|
|
|
|
|
# Field list:
|
|
|
visit_field_list = pass_node
|
|
|
visit_field = pass_node
|
|
|
# the field body corresponds to a list item
|
|
|
visit_field_body = visit_list_item
|
|
|
visit_field_name = ignore_node
|
|
|
|
|
|
# Invisible nodes should be ignored.
|
|
|
visit_comment = ignore_node
|
|
|
visit_substitution_definition = ignore_node
|
|
|
visit_target = ignore_node
|
|
|
visit_pending = ignore_node
|
