How to use the jinja2.nodes.Name function in Jinja2

script tags (e.g. {% css ... %}, {% js ...%}).
		"""
		tag = parser.stream.current.value
		lineno = next(parser.stream).lineno

		default_bundle_name = u"%s" % (self.environment.default_bundle_name)
		default_bundle_name.encode('utf-8')
		bundle_name = nodes.Const(default_bundle_name)

		#parse filename
		if parser.stream.current.type != 'block_end':
			value = parser.parse_expression()
			# get first optional argument: bundle_name
			if parser.stream.skip_if('comma'):
				bundle_name = parser.parse_expression()
				if isinstance(bundle_name, nodes.Name):
					bundle_name = nodes.Name(bundle_name.name, 'load')
		else:
			value = parser.parse_tuple()

		args = [nodes.Const(tag), value, bundle_name]

		# Return html tag with link to corresponding script file.
		if self.environment.use_bundle is False:
			value = value.value
			if callable(self.environment.collection_templates[tag]):
				node = self.environment.collection_templates[tag](value)
			else:
				node = self.environment.collection_templates[tag] % value
			return nodes.Output([nodes.MarkSafeIfAutoescape(nodes.Const(node))])

		# Call :meth:`_update` to collect names of used scripts.

.. versionadded:: 2.1
        """
        parser = Parser(self, source, state='variable')
        exc_info = None
        try:
            expr = parser.parse_expression()
            if not parser.stream.eos:
                raise TemplateSyntaxError('chunk after expression',
                                          parser.stream.current.lineno,
                                          None, None)
            expr.set_environment(self)
        except TemplateSyntaxError:
            exc_info = sys.exc_info()
        if exc_info is not None:
            self.handle_exception(exc_info, source_hint=source)
        body = [nodes.Assign(nodes.Name('result', 'store'), expr, lineno=1)]
        template = self.from_string(nodes.Template(body, lineno=1))
        return TemplateExpression(template, undefined_to_none)

def parse_primary(self):
        token = self.stream.current
        if token.type == 'name':
            if token.value in ('true', 'false', 'True', 'False'):
                node = nodes.Const(token.value in ('true', 'True'),
                                   lineno=token.lineno)
            elif token.value in ('none', 'None'):
                node = nodes.Const(None, lineno=token.lineno)
            else:
                node = nodes.Name(token.value, 'load', lineno=token.lineno)
            next(self.stream)
        elif token.type == 'string':
            next(self.stream)
            buf = [token.value]
            lineno = token.lineno
            while self.stream.current.type == 'string':
                buf.append(self.stream.current.value)
                next(self.stream)
            node = nodes.Const(''.join(buf), lineno=lineno)
        elif token.type in ('integer', 'float'):
            next(self.stream)
            node = nodes.Const(token.value, lineno=token.lineno)
        elif token.type == 'lparen':
            next(self.stream)
            node = self.parse_tuple(explicit_parentheses=True)
            self.stream.expect('rparen')

def parse_primary(self):
        token = self.stream.current
        if token.type == 'name':
            if token.value in ('true', 'false', 'True', 'False'):
                node = nodes.Const(token.value in ('true', 'True'),
                                   lineno=token.lineno)
            elif token.value in ('none', 'None'):
                node = nodes.Const(None, lineno=token.lineno)
            else:
                node = nodes.Name(token.value, 'load', lineno=token.lineno)
            next(self.stream)
        elif token.type == 'string':
            next(self.stream)
            buf = [token.value]
            lineno = token.lineno
            while self.stream.current.type == 'string':
                buf.append(self.stream.current.value)
                next(self.stream)
            node = nodes.Const(''.join(buf), lineno=lineno)
        elif token.type in ('integer', 'float'):
            next(self.stream)
            node = nodes.Const(token.value, lineno=token.lineno)
        elif token.type == 'lparen':
            next(self.stream)
            node = self.parse_tuple(explicit_parentheses=True)
            self.stream.expect('rparen')

def parse_assign_target(self, with_tuple=True, name_only=False,
                            extra_end_rules=None):
        """Parse an assignment target.  As Jinja2 allows assignments to
        tuples, this function can parse all allowed assignment targets.  Per
        default assignments to tuples are parsed, that can be disable however
        by setting `with_tuple` to `False`.  If only assignments to names are
        wanted `name_only` can be set to `True`.  The `extra_end_rules`
        parameter is forwarded to the tuple parsing function.
        """
        if name_only:
            token = self.stream.expect('name')
            target = nodes.Name(token.value, 'store', lineno=token.lineno)
        else:
            if with_tuple:
                target = self.parse_tuple(simplified=True,
                                          extra_end_rules=extra_end_rules)
            else:
                target = self.parse_primary()
            target.set_ctx('store')
        if not target.can_assign():
            self.fail('can\'t assign to %r' % target.__class__.
                      __name__.lower(), target.lineno)
        return target

def extract_from_ast(node, gettext_functions=GETTEXT_FUNCTIONS):
    """Extract localizable strings from the given template node.

    For every string found this function yields a ``(lineno, function,
    message)`` tuple, where:

    * ``lineno`` is the number of the line on which the string was found,
    * ``function`` is the name of the ``gettext`` function used (if the
      string was extracted from embedded Python code), and
    *  ``message`` is the string itself (a ``unicode`` object, or a tuple
       of ``unicode`` objects for functions with multiple string arguments).
    """
    for node in node.find_all(nodes.Call):
        if not isinstance(node.node, nodes.Name) or \
           node.node.name not in gettext_functions:
            continue

        strings = []
        for arg in node.args:
            if isinstance(arg, nodes.Const) and \
               isinstance(arg.value, basestring):
                strings.append(arg.value)
            else:
                strings.append(None)

        if len(strings) == 1:
            strings = strings[0]
        else:
            strings = tuple(strings)
        yield node.lineno, node.node.name, strings

"""Parse an assignment target.  As Jinja2 allows assignments to
        tuples, this function can parse all allowed assignment targets.  Per
        default assignments to tuples are parsed, that can be disable however
        by setting `with_tuple` to `False`.  If only assignments to names are
        wanted `name_only` can be set to `True`.  The `extra_end_rules`
        parameter is forwarded to the tuple parsing function.  If
        `with_namespace` is enabled, a namespace assignment may be parsed.
        """
        if with_namespace and self.stream.look().type == 'dot':
            token = self.stream.expect('name')
            next(self.stream)  # dot
            attr = self.stream.expect('name')
            target = nodes.NSRef(token.value, attr.value, lineno=token.lineno)
        elif name_only:
            token = self.stream.expect('name')
            target = nodes.Name(token.value, 'store', lineno=token.lineno)
        else:
            if with_tuple:
                target = self.parse_tuple(simplified=True,
                                          extra_end_rules=extra_end_rules)
            else:
                target = self.parse_primary()
            target.set_ctx('store')
        if not target.can_assign():
            self.fail('can\'t assign to %r' % target.__class__.
                      __name__.lower(), target.lineno)
        return target

def parse_assign_target(self, with_tuple=True, name_only=False,
                            extra_end_rules=None):
        """Parse an assignment target.  As Jinja2 allows assignments to
        tuples, this function can parse all allowed assignment targets.  Per
        default assignments to tuples are parsed, that can be disable however
        by setting `with_tuple` to `False`.  If only assignments to names are
        wanted `name_only` can be set to `True`.  The `extra_end_rules`
        parameter is forwarded to the tuple parsing function.
        """
        if name_only:
            token = self.stream.expect('name')
            target = nodes.Name(token.value, 'store', lineno=token.lineno)
        else:
            if with_tuple:
                target = self.parse_tuple(simplified=True,
                                          extra_end_rules=extra_end_rules)
            else:
                target = self.parse_primary()
            target.set_ctx('store')
        if not target.can_assign():
            self.fail('can\'t assign to %r' % target.__class__.
                      __name__.lower(), target.lineno)
        return target

if not node.recursive:
            aliases = self.push_scope(loop_frame, ('loop',))

        # otherwise we set up a buffer and add a function def
        else:
            self.writeline('def loop(reciter, loop_render_func, depth=0):', node)
            self.indent()
            self.buffer(loop_frame)
            aliases = {}

        # make sure the loop variable is a special one and raise a template
        # assertion error if a loop tries to write to loop
        if extended_loop:
            self.writeline('l_loop = missing')
            loop_frame.identifiers.add_special('loop')
        for name in node.find_all(nodes.Name):
            if name.ctx == 'store' and name.name == 'loop':
                self.fail('Can\'t assign to special loop variable '
                          'in for-loop target', name.lineno)

        self.pull_locals(loop_frame)
        if node.else_:
            iteration_indicator = self.temporary_identifier()
            self.writeline('%s = 1' % iteration_indicator)

        # Create a fake parent loop if the else or test section of a
        # loop is accessing the special loop variable and no parent loop
        # exists.
        if 'loop' not in aliases and 'loop' in find_undeclared(
           node.iter_child_nodes(only=('else_', 'test')), ('loop',)):
            self.writeline("l_loop = environment.undefined(%r, name='loop')" %
                ("'loop' is undefined. the filter section of a loop as well "

dbg = value
                else:
                    parser.fail('Invalid keyword argument: %s' % name)
            # otherwise assume a source file is given, which may
            # be any expression, except note that strings are handled
            # separately above
            else:
                files.append(parser.parse_expression())

        # parse the contents of this tag, and return a block
        body = parser.parse_statements(['name:endassets'], drop_needle=True)

        return nodes.CallBlock(
                self.call_method('_render_assets',
                                 args=[filters, output, dbg, nodes.List(files)]),
                [nodes.Name('ASSET_URL', 'store')], [], body).\
                    set_lineno(lineno)