python类TextElement()的实例源码

def rst2ansi(input_string, output_encoding='utf-8'):

  overrides = {}
  overrides['input_encoding'] = 'unicode'

  def style_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
    return [nodes.TextElement(rawtext, text, classes=[name])], []

  for color in COLORS:
    roles.register_local_role('ansi-fg-' + color, style_role)
    roles.register_local_role('ansi-bg-' + color, style_role)
  for style in STYLES:
    roles.register_local_role('ansi-' + style, style_role)

  out = core.publish_string(input_string.decode('utf-8'), settings_overrides=overrides, writer=Writer(unicode=output_encoding.startswith('utf')))
  return out.decode(output_encoding)

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 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 latex2html(node, source):
    inline = isinstance(node.parent, nodes.TextElement)
    latex = node['latex']
    name = 'math-%s' % md5(latex).hexdigest()[-10:]
    dest = '_static/%s.png' % name
    depth = latex2png(latex, dest, node['fontset'])

    path = '_static'
    count = source.split('/doc/')[-1].count('/')
    for i in range(count):
        if os.path.exists(path): break
        path = '../'+path
    path = '../'+path #specifically added for matplotlib
    if inline:
        cls = ''
    else:
        cls = 'class="center" '
    if inline and depth != 0:
        style = 'style="position: relative; bottom: -%dpx"' % (depth + 1)
    else:
        style = ''

    return '<img src="%s/%s.png" %s%s/>' % (path, name, cls, style)

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 is_translatable(node):
    if isinstance(node, nodes.TextElement):
        if not node.source:
            return False  # built-in message
        if isinstance(node, IGNORED_NODES) and 'translatable' not in node:
            return False
        if not node.get('translatable', True):
            # not(node['translatable'] == True or node['translatable'] is None)
            return False
        # <field_name>orphan</field_name>
        # XXX ignore all metadata (== docinfo)
        if isinstance(node, nodes.field_name) and node.children[0] == 'orphan':
            return False
        return True

    if isinstance(node, nodes.image) and node.get('translatable'):
        return True

    return False

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 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 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 is_inline(self, node):
        """Check whether a node represents an inline element."""
        return isinstance(node.parent, nodes.TextElement)

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_raw(self, node):
        if 'xml' not in node.get('format', '').split():
            # skip other raw content?
            # raise nodes.SkipNode
            self.default_visit(node)
            return
        # wrap in <raw> element
        self.default_visit(node)      # or not?
        xml_string = node.astext()
        self.output.append(xml_string)
        self.default_departure(node)  # or not?
        # Check validity of raw XML:
        if isinstance(xml_string, unicode) and sys.version_info < (3,):
            xml_string = xml_string.encode('utf8')
        try:
            self.xmlparser.parse(StringIO(xml_string))
        except xml.sax._exceptions.SAXParseException, error:
            col_num = self.the_handle.locator.getColumnNumber()
            line_num =  self.the_handle.locator.getLineNumber()
            srcline = node.line
            if not isinstance(node.parent, nodes.TextElement):
                srcline += 2 # directive content start line
            msg = 'Invalid raw XML in column %d, line offset %d:\n%s' % (
                   col_num, line_num, node.astext())
            self.warn(msg, source=node.source, line=srcline+line_num-1)
        raise nodes.SkipNode # content already processed

def is_inline(self, node):
        """Check whether a node represents an inline or block-level element"""
        return isinstance(node.parent, nodes.TextElement)

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_raw(self, node):
        if 'xml' not in node.get('format', '').split():
            # skip other raw content?
            # raise nodes.SkipNode
            self.default_visit(node)
            return
        # wrap in <raw> element
        self.default_visit(node)      # or not?
        xml_string = node.astext()
        self.output.append(xml_string)
        self.default_departure(node)  # or not?
        # Check validity of raw XML:
        if isinstance(xml_string, unicode) and sys.version_info < (3,):
            xml_string = xml_string.encode('utf8')
        try:
            self.xmlparser.parse(StringIO(xml_string))
        except xml.sax._exceptions.SAXParseException, error:
            col_num = self.the_handle.locator.getColumnNumber()
            line_num =  self.the_handle.locator.getLineNumber()
            srcline = node.line
            if not isinstance(node.parent, nodes.TextElement):
                srcline += 2 # directive content start line
            msg = 'Invalid raw XML in column %d, line offset %d:\n%s' % (
                   col_num, line_num, node.astext())
            self.warn(msg, source=node.source, line=srcline+line_num-1)
        raise nodes.SkipNode # content already processed

def is_inline(self, node):
        """Check whether a node represents an inline or block-level element"""
        return isinstance(node.parent, nodes.TextElement)

def setup(app):
    app.add_node(latex_math)
    app.add_role('math', math_role)

    # Add visit/depart methods to HTML-Translator:
    def visit_latex_math_html(self, node):
        source = self.document.attributes['source']
        self.body.append(latex2html(node, source))
    def depart_latex_math_html(self, node):
            pass
    HTMLTranslator.visit_latex_math = visit_latex_math_html
    HTMLTranslator.depart_latex_math = depart_latex_math_html

    # Add visit/depart methods to LaTeX-Translator:
    def visit_latex_math_latex(self, node):
        inline = isinstance(node.parent, nodes.TextElement)
        if inline:
            self.body.append('$%s$' % node['latex'])
        else:
            self.body.extend(['\\begin{equation}',
                              node['latex'],
                              '\\end{equation}'])
    def depart_latex_math_latex(self, node):
            pass
    LaTeXTranslator.visit_latex_math = visit_latex_math_latex
    LaTeXTranslator.depart_latex_math = depart_latex_math_latex

def setup(app):
    app.add_node(latex_math)
    app.add_role('math', math_role)

    # Add visit/depart methods to HTML-Translator:
    def visit_latex_math_html(self, node):
        mathml = ''.join(node['mathml_tree'].xml())
        self.body.append(mathml)
    def depart_latex_math_html(self, node):
            pass
    HTMLTranslator.visit_latex_math = visit_latex_math_html
    HTMLTranslator.depart_latex_math = depart_latex_math_html

    # Add visit/depart methods to LaTeX-Translator:
    def visit_latex_math_latex(self, node):
        inline = isinstance(node.parent, nodes.TextElement)
        if inline:
            self.body.append('$%s$' % node['latex'])
        else:
            self.body.extend(['\\begin{equation}',
                              node['latex'],
                              '\\end{equation}'])
    def depart_latex_math_latex(self, node):
            pass
    LaTeXTranslator.visit_latex_math = visit_latex_math_latex
    LaTeXTranslator.depart_latex_math = depart_latex_math_latex


# LaTeX to MathML translation stuff:

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 default_visit(self, node):
        """Default node visit method."""
        if not self.in_simple:
            self.output.append(self.indent*self.level)
        self.output.append(node.starttag(xml.sax.saxutils.quoteattr))
        self.level += 1
        if isinstance(node, nodes.TextElement):
            self.in_simple += 1
        if not self.in_simple:
            self.output.append(self.newline)

def default_departure(self, node):
        """Default node depart method."""
        self.level -= 1
        if not self.in_simple:
            self.output.append(self.indent*self.level)
        self.output.append(node.endtag())
        if isinstance(node, nodes.TextElement):
            self.in_simple -= 1
        if not self.in_simple:
            self.output.append(self.newline)


    # specific visit and depart methods
    # ---------------------------------

def visit_raw(self, node):
        if 'xml' not in node.get('format', '').split():
            # skip other raw content?
            # raise nodes.SkipNode
            self.default_visit(node)
            return
        # wrap in <raw> element
        self.default_visit(node)      # or not?
        xml_string = node.astext()
        self.output.append(xml_string)
        self.default_departure(node)  # or not?
        # Check validity of raw XML:
        if isinstance(xml_string, unicode) and sys.version_info < (3,):
            xml_string = xml_string.encode('utf8')
        try:
            self.xmlparser.parse(StringIO(xml_string))
        except xml.sax._exceptions.SAXParseException, error:
            col_num = self.the_handle.locator.getColumnNumber()
            line_num =  self.the_handle.locator.getLineNumber()
            srcline = node.line
            if not isinstance(node.parent, nodes.TextElement):
                srcline += 2 # directive content start line
            msg = 'Invalid raw XML in column %d, line offset %d:\n%s' % (
                   col_num, line_num, node.astext())
            self.warn(msg, source=node.source, line=srcline+line_num-1)
        raise nodes.SkipNode # content already processed

def is_inline(self, node):
        """Check whether a node represents an inline or block-level element"""
        return isinstance(node.parent, nodes.TextElement)

def process_metadata(self, docname, doctree):
        """Process the docinfo part of the doctree as metadata.

        Keep processing minimal -- just return what docutils says.
        """
        self.metadata[docname] = md = {}
        try:
            docinfo = doctree[0]
        except IndexError:
            # probably an empty document
            return
        if docinfo.__class__ is not nodes.docinfo:
            # nothing to see here
            return
        for node in docinfo:
            # nodes are multiply inherited...
            if isinstance(node, nodes.authors):
                md['authors'] = [author.astext() for author in node]
            elif isinstance(node, nodes.TextElement):  # e.g. author
                md[node.__class__.__name__] = node.astext()
            else:
                name, body = node
                md[name.astext()] = body.astext()
        for name, value in md.items():
            if name in ('tocdepth',):
                try:
                    value = int(value)
                except ValueError:
                    value = 0
                md[name] = value

        del doctree[0]

def astext(self):
        return ' -> ' + nodes.TextElement.astext(self)

def astext(self):
        return '[' + nodes.TextElement.astext(self) + ']'

def is_inline(self, node):
        """Check whether a node represents an inline element."""
        return isinstance(node.parent, nodes.TextElement)

def visit_reference(self, node):
        atts = {'class': 'reference'}
        if node.get('internal') or 'refuri' not in node:
            atts['class'] += ' internal'
        else:
            atts['class'] += ' external'
        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 = 1
        else:
            assert 'refid' in node, \
                   'References must have "refuri" or "refid" attribute.'
            atts['href'] = '#' + node['refid']
        if not isinstance(node.parent, nodes.TextElement):
            assert len(node) == 1 and isinstance(node[0], nodes.image)
            atts['class'] += ' image-reference'
        if 'reftitle' in node:
            atts['title'] = node['reftitle']
        self.body.append(self.starttag(node, 'a', '', **atts))

        if node.get('secnumber'):
            self.body.append(('%s' + self.secnumber_suffix) %
                             '.'.join(map(str, node['secnumber'])))

def astext(self):
        return ' -> ' + nodes.TextElement.astext(self)

def astext(self):
        return '[' + nodes.TextElement.astext(self) + ']'