How to use Genshi - 10 common examples

def test_genshi_builder():
        """Genshi template + tag builder"""
        stream = tag.TABLE([
            tag.tr([tag.td(c) for c in row.values()])
            for row in table
        ]).generate()
        stream = genshi_tmpl2.generate(table=stream)
        stream.render('html', strip_whitespace=False)

if not isinstance(value, basestring): # None or other non-splitable
            return value
        default_query = self.ticketlink_query.startswith('?') and \
                        self.ticketlink_query[1:] or self.ticketlink_query
        args = arg_list_to_args(parse_arg_list(default_query))
        items = []
        for i, word in enumerate(re.split(r'([;,\s]+)', value)):
            if i % 2:
                items.append(word)
            elif word:
                rendered = name != 'cc' and word \
                           or Chrome(self.env).format_emails(context, word)
                if rendered == word:
                    word_args = args.copy()
                    word_args[name] = '~' + word
                    items.append(tag.a(word,
                                       href=context.href.query(word_args)))
                else:
                    items.append(rendered)
        return tag(items)

def get_qname(self, name):
        """
        Return a `QName` for a name.

        :return: qname
        """
        if ':' in name:
            ns, localname = name.split(':')
            name = self.get_namespace(ns)
            if name is None:
                self.fail('The namespace alias %s is unknown' % ns)
        else:
            localname = name
            name = self.get_namespace('')
        return QName(u'%s}%s' % (name, localname))

for attr, value in attrib:
                    if attr in boolean_attrs:
                        value = attr
                    elif attr == 'xml:lang' and 'lang' not in attrib:
                        buf += [' lang="', escape(value), '"']
                    elif attr == 'xml:space':
                        continue
                    buf += [' ', attr, '="', escape(value), '"']
                if kind is EMPTY:
                    if tag in empty_elems:
                        buf.append(' />')
                    else:
                        buf.append('>' % tag)
                else:
                    buf.append('>')
                yield _emit(kind, data, Markup(''.join(buf)))

            elif kind is END:
                yield _emit(kind, data, Markup('' % data))

            elif kind is TEXT:
                if in_cdata:
                    yield _emit(kind, data, data)
                else:
                    yield _emit(kind, data, escape(data, quotes=False))

            elif kind is COMMENT:
                yield _emit(kind, data, Markup('' % data))

            elif kind is DOCTYPE and not have_doctype:
                name, pubid, sysid = data
                buf = ['

if result is True:
                    yield event
                    if event[0] is START:
                        depth = 1
                        while depth > 0:
                            subevent = stream.next()
                            if subevent[0] is START:
                                depth += 1
                            elif subevent[0] is END:
                                depth -= 1
                            yield subevent
                            test(subevent, namespaces, variables,
                                 updateonly=True)
                elif result:
                    yield result
        return Stream(_generate(),
                      serializer=getattr(stream, 'serializer', None))

yield ENTER, event
                    depth = 1
                    while depth > 0:
                        mark, subevent = next()
                        if subevent[0] is START:
                            depth += 1
                        elif subevent[0] is END:
                            depth -= 1
                        if depth == 0:
                            yield EXIT, subevent
                        else:
                            yield INSIDE, subevent
                        test(subevent, namespaces, variables, updateonly=True)
                else:
                    yield OUTSIDE, event
            elif isinstance(result, Attrs):
                # XXX  Selected *attributes* are given a "kind" of None to
                # indicate they are not really part of the stream.
                yield ATTR, (ATTR, (QName(event[1][0] + '@*'), result), event[2])
                yield None, event
            elif isinstance(result, tuple):
                yield OUTSIDE, result
            elif result:
                # XXX Assume everything else is "text"?
                yield None, (TEXT, unicode(result), (None, -1, -1))
            else:
                yield None, event

def _visit_BoolOperator(opcls):
        def _visit(self, node):
            values = [self.visit(n) for n in node.nodes]
            return self._new(_ast.BoolOp, opcls(), values)
        return _visit
    visit_And = _visit_BoolOperator(_ast.And)
    visit_Or = _visit_BoolOperator(_ast.Or)
    del _visit_BoolOperator

    cmp_operators = {
        '==': _ast.Eq,
        '!=': _ast.NotEq,
        '<': _ast.Lt,
        '<=': _ast.LtE,
        '>': _ast.Gt,
        '>=': _ast.GtE,
        'is': _ast.Is,
        'is not': _ast.IsNot,
        'in': _ast.In,
        'not in': _ast.NotIn,
    }

    def visit_Compare(self, node):
        left = self.visit(node.expr)
        ops = []
        comparators = []
        for optype, expr in node.ops:
            ops.append(self.cmp_operators[optype]())
            comparators.append(self.visit(expr))
        return self._new(_ast.Compare, left, ops, comparators)

    def visit_Lambda(self, node):

values = [self.visit(n) for n in node.nodes]
            return self._new(_ast.BoolOp, opcls(), values)
        return _visit
    visit_And = _visit_BoolOperator(_ast.And)
    visit_Or = _visit_BoolOperator(_ast.Or)
    del _visit_BoolOperator

    cmp_operators = {
        '==': _ast.Eq,
        '!=': _ast.NotEq,
        '<': _ast.Lt,
        '<=': _ast.LtE,
        '>': _ast.Gt,
        '>=': _ast.GtE,
        'is': _ast.Is,
        'is not': _ast.IsNot,
        'in': _ast.In,
        'not in': _ast.NotIn,
    }

    def visit_Compare(self, node):
        left = self.visit(node.expr)
        ops = []
        comparators = []
        for optype, expr in node.ops:
            ops.append(self.cmp_operators[optype]())
            comparators.append(self.visit(expr))
        return self._new(_ast.Compare, left, ops, comparators)

    def visit_Lambda(self, node):
        args = self._extract_args(node)
        body = self.visit(node.code)

visit_Continue = _map_class(_ast.Continue)

    def _visit_BinOperator(opcls):
        def _visit(self, node):
            return self._new(_ast.BinOp, self.visit(node.left), 
                            opcls(), self.visit(node.right)) 
        return _visit
    visit_Add = _visit_BinOperator(_ast.Add)
    visit_Div = _visit_BinOperator(_ast.Div)
    visit_FloorDiv = _visit_BinOperator(_ast.FloorDiv)
    visit_LeftShift = _visit_BinOperator(_ast.LShift)
    visit_Mod = _visit_BinOperator(_ast.Mod)
    visit_Mul = _visit_BinOperator(_ast.Mult)
    visit_Power = _visit_BinOperator(_ast.Pow)
    visit_RightShift = _visit_BinOperator(_ast.RShift)
    visit_Sub = _visit_BinOperator(_ast.Sub)
    del _visit_BinOperator

    def _visit_BitOperator(opcls):
        def _visit(self, node):
            def _make(nodes):
                if len(nodes) == 1:
                    return self.visit(nodes[0])
                left = _make(nodes[:-1])
                right = self.visit(nodes[-1])
                return self._new(_ast.BinOp, left, opcls(), right)
            return _make(node.nodes)
        return _visit
    visit_Bitand = _visit_BitOperator(_ast.BitAnd)
    visit_Bitor = _visit_BitOperator(_ast.BitOr)
    visit_Bitxor = _visit_BitOperator(_ast.BitXor)
    del _visit_BitOperator

def _visit(self, node):
            return self._new(to)
        return _visit

    visit_Pass = _map_class(_ast.Pass)
    visit_Break = _map_class(_ast.Break)
    visit_Continue = _map_class(_ast.Continue)

    def _visit_BinOperator(opcls):
        def _visit(self, node):
            return self._new(_ast.BinOp, self.visit(node.left), 
                            opcls(), self.visit(node.right)) 
        return _visit
    visit_Add = _visit_BinOperator(_ast.Add)
    visit_Div = _visit_BinOperator(_ast.Div)
    visit_FloorDiv = _visit_BinOperator(_ast.FloorDiv)
    visit_LeftShift = _visit_BinOperator(_ast.LShift)
    visit_Mod = _visit_BinOperator(_ast.Mod)
    visit_Mul = _visit_BinOperator(_ast.Mult)
    visit_Power = _visit_BinOperator(_ast.Pow)
    visit_RightShift = _visit_BinOperator(_ast.RShift)
    visit_Sub = _visit_BinOperator(_ast.Sub)
    del _visit_BinOperator

    def _visit_BitOperator(opcls):
        def _visit(self, node):
            def _make(nodes):
                if len(nodes) == 1:
                    return self.visit(nodes[0])
                left = _make(nodes[:-1])
                right = self.visit(nodes[-1])
                return self._new(_ast.BinOp, left, opcls(), right)