FM / jinja2

/usr/lib64/python2.6/site-packages/jinja2/

/usr/lib64/python2.6/site-packages/jinja2

Name	Size	Mode	Actions
bccache.py	11294	0644	edit dl rm
bccache.pyc	13477	0644	edit dl rm
bccache.pyo	13477	0644	edit dl rm
compiler.py	55923	0644	edit dl rm
compiler.pyc	50915	0644	edit dl rm
compiler.pyo	50845	0644	edit dl rm
constants.py	6229	0644	edit dl rm
constants.pyc	7697	0644	edit dl rm
constants.pyo	7697	0644	edit dl rm
debug.py	9927	0644	edit dl rm
debug.pyc	10166	0644	edit dl rm
debug.pyo	10094	0644	edit dl rm
defaults.py	1050	0644	edit dl rm
defaults.pyc	1614	0644	edit dl rm
defaults.pyo	1614	0644	edit dl rm
environment.py	34651	0644	edit dl rm
environment.pyc	34522	0644	edit dl rm
environment.pyo	34103	0644	edit dl rm
exceptions.py	3073	0644	edit dl rm
exceptions.pyc	4721	0644	edit dl rm
exceptions.pyo	4721	0644	edit dl rm
ext.py	18107	0644	edit dl rm
ext.pyc	17681	0644	edit dl rm
ext.pyo	17614	0644	edit dl rm
filters.py	21806	0644	edit dl rm
filters.pyc	24774	0644	edit dl rm
filters.pyo	24774	0644	edit dl rm
lexer.py	24664	0644	edit dl rm
lexer.pyc	20566	0644	edit dl rm
lexer.pyo	20397	0644	edit dl rm
loaders.py	11507	0644	edit dl rm
loaders.pyc	13218	0644	edit dl rm
loaders.pyo	13218	0644	edit dl rm
meta.py	2846	0644	edit dl rm
meta.pyc	3667	0644	edit dl rm
meta.pyo	3667	0644	edit dl rm
nodes.py	23464	0644	edit dl rm
nodes.pyc	38188	0644	edit dl rm
nodes.pyo	37693	0644	edit dl rm
optimizer.py	2302	0644	edit dl rm
optimizer.pyc	2873	0644	edit dl rm
optimizer.pyo	2873	0644	edit dl rm
parser.py	30676	0644	edit dl rm
parser.pyc	28852	0644	edit dl rm
parser.pyo	28852	0644	edit dl rm
runtime.py	17605	0644	edit dl rm
runtime.pyc	21447	0644	edit dl rm
runtime.pyo	21411	0644	edit dl rm
sandbox.py	9260	0644	edit dl rm
sandbox.pyc	9718	0644	edit dl rm
sandbox.pyo	9718	0644	edit dl rm
tests.py	3266	0644	edit dl rm
tests.pyc	4922	0644	edit dl rm
tests.pyo	4922	0644	edit dl rm
utils.py	24894	0644	edit dl rm
utils.pyc	31508	0644	edit dl rm
utils.pyo	31508	0644	edit dl rm
visitor.py	3316	0644	edit dl rm
visitor.pyc	3850	0644	edit dl rm
visitor.pyo	3850	0644	edit dl rm
_ipysupport.py	949	0644	edit dl rm
_ipysupport.pyc	1776	0644	edit dl rm
_ipysupport.pyo	1776	0644	edit dl rm
_speedups.so	8232	0755	edit dl rm
_stringdefs.py	404256	0644	edit dl rm
_stringdefs.pyc	208525	0644	edit dl rm
_stringdefs.pyo	208525	0644	edit dl rm
__init__.py	2195	0644	edit dl rm
__init__.pyc	2396	0644	edit dl rm
__init__.pyo	2396	0644	edit dl rm

Edit: /usr/lib64/python2.6/site-packages/jinja2/parser.py (30676B)

# -*- coding: utf-8 -*-
"""
    jinja2.parser
    ~~~~~~~~~~~~~

Implements the template parser.

:copyright: (c) 2009 by the Jinja Team.
    :license: BSD, see LICENSE for more details.
"""
from jinja2 import nodes
from jinja2.exceptions import TemplateSyntaxError, TemplateAssertionError
from jinja2.utils import next

_statement_keywords = frozenset(['for', 'if', 'block', 'extends', 'print',
                                 'macro', 'include', 'from', 'import',
                                 'set'])
_compare_operators = frozenset(['eq', 'ne', 'lt', 'lteq', 'gt', 'gteq'])

class Parser(object):
    """This is the central parsing class Jinja2 uses.  It's passed to
    extensions and can be used to parse expressions or statements.
    """

def __init__(self, environment, source, name=None, filename=None,
                 state=None):
        self.environment = environment
        self.stream = environment._tokenize(source, name, filename, state)
        self.name = name
        self.filename = filename
        self.closed = False
        self.extensions = {}
        for extension in environment.extensions.itervalues():
            for tag in extension.tags:
                self.extensions[tag] = extension.parse
        self._last_identifier = 0

def fail(self, msg, lineno=None, exc=TemplateSyntaxError):
        """Convenience method that raises `exc` with the message, passed
        line number or last line number as well as the current name and
        filename.
        """
        if lineno is None:
            lineno = self.stream.current.lineno
        raise exc(msg, lineno, self.name, self.filename)

def is_tuple_end(self, extra_end_rules=None):
        """Are we at the end of a tuple?"""
        if self.stream.current.type in ('variable_end', 'block_end', 'rparen'):
            return True
        elif extra_end_rules is not None:
            return self.stream.current.test_any(extra_end_rules)
        return False

def free_identifier(self, lineno=None):
        """Return a new free identifier as :class:`~jinja2.nodes.InternalName`."""
        self._last_identifier += 1
        rv = object.__new__(nodes.InternalName)
        nodes.Node.__init__(rv, 'fi%d' % self._last_identifier, lineno=lineno)
        return rv

def parse_statement(self):
        """Parse a single statement."""
        token = self.stream.current
        if token.type != 'name':
            self.fail('tag name expected', token.lineno)
        if token.value in _statement_keywords:
            return getattr(self, 'parse_' + self.stream.current.value)()
        if token.value == 'call':
            return self.parse_call_block()
        if token.value == 'filter':
            return self.parse_filter_block()
        ext = self.extensions.get(token.value)
        if ext is not None:
            return ext(self)
        self.fail('unknown tag %r' % token.value, token.lineno)

def parse_statements(self, end_tokens, drop_needle=False):
        """Parse multiple statements into a list until one of the end tokens
        is reached.  This is used to parse the body of statements as it also
        parses template data if appropriate.  The parser checks first if the
        current token is a colon and skips it if there is one.  Then it checks
        for the block end and parses until if one of the `end_tokens` is
        reached.  Per default the active token in the stream at the end of
        the call is the matched end token.  If this is not wanted `drop_needle`
        can be set to `True` and the end token is removed.
        """
        # the first token may be a colon for python compatibility
        self.stream.skip_if('colon')

# in the future it would be possible to add whole code sections
        # by adding some sort of end of statement token and parsing those here.
        self.stream.expect('block_end')
        result = self.subparse(end_tokens)

if drop_needle:
            next(self.stream)
        return result

def parse_set(self):
        """Parse an assign statement."""
        lineno = next(self.stream).lineno
        target = self.parse_assign_target()
        self.stream.expect('assign')
        expr = self.parse_tuple()
        return nodes.Assign(target, expr, lineno=lineno)

def parse_for(self):
        """Parse a for loop."""
        lineno = self.stream.expect('name:for').lineno
        target = self.parse_assign_target(extra_end_rules=('name:in',))
        self.stream.expect('name:in')
        iter = self.parse_tuple(with_condexpr=False,
                                extra_end_rules=('name:recursive',))
        test = None
        if self.stream.skip_if('name:if'):
            test = self.parse_expression()
        recursive = self.stream.skip_if('name:recursive')
        body = self.parse_statements(('name:endfor', 'name:else'))
        if next(self.stream).value == 'endfor':
            else_ = []
        else:
            else_ = self.parse_statements(('name:endfor',), drop_needle=True)
        return nodes.For(target, iter, body, else_, test,
                         recursive, lineno=lineno)

def parse_if(self):
        """Parse an if construct."""
        node = result = nodes.If(lineno=self.stream.expect('name:if').lineno)
        while 1:
            node.test = self.parse_tuple(with_condexpr=False)
            node.body = self.parse_statements(('name:elif', 'name:else',
                                               'name:endif'))
            token = next(self.stream)
            if token.test('name:elif'):
                new_node = nodes.If(lineno=self.stream.current.lineno)
                node.else_ = [new_node]
                node = new_node
                continue
            elif token.test('name:else'):
                node.else_ = self.parse_statements(('name:endif',),
                                                   drop_needle=True)
            else:
                node.else_ = []
            break
        return result

def parse_block(self):
        node = nodes.Block(lineno=next(self.stream).lineno)
        node.name = self.stream.expect('name').value
        node.scoped = self.stream.skip_if('name:scoped')
        node.body = self.parse_statements(('name:endblock',), drop_needle=True)
        self.stream.skip_if('name:' + node.name)
        return node

def parse_extends(self):
        node = nodes.Extends(lineno=next(self.stream).lineno)
        node.template = self.parse_expression()
        return node

def parse_import_context(self, node, default):
        if self.stream.current.test_any('name:with', 'name:without') and \
           self.stream.look().test('name:context'):
            node.with_context = next(self.stream).value == 'with'
            self.stream.skip()
        else:
            node.with_context = default
        return node

def parse_include(self):
        node = nodes.Include(lineno=next(self.stream).lineno)
        node.template = self.parse_expression()
        if self.stream.current.test('name:ignore') and \
           self.stream.look().test('name:missing'):
            node.ignore_missing = True
            self.stream.skip(2)
        else:
            node.ignore_missing = False
        return self.parse_import_context(node, True)

def parse_import(self):
        node = nodes.Import(lineno=next(self.stream).lineno)
        node.template = self.parse_expression()
        self.stream.expect('name:as')
        node.target = self.parse_assign_target(name_only=True).name
        return self.parse_import_context(node, False)

def parse_from(self):
        node = nodes.FromImport(lineno=next(self.stream).lineno)
        node.template = self.parse_expression()
        self.stream.expect('name:import')
        node.names = []

def parse_context():
            if self.stream.current.value in ('with', 'without') and \
               self.stream.look().test('name:context'):
                node.with_context = next(self.stream).value == 'with'
                self.stream.skip()
                return True
            return False

while 1:
            if node.names:
                self.stream.expect('comma')
            if self.stream.current.type == 'name':
                if parse_context():
                    break
                target = self.parse_assign_target(name_only=True)
                if target.name.startswith('_'):
                    self.fail('names starting with an underline can not '
                              'be imported', target.lineno,
                              exc=TemplateAssertionError)
                if self.stream.skip_if('name:as'):
                    alias = self.parse_assign_target(name_only=True)
                    node.names.append((target.name, alias.name))
                else:
                    node.names.append(target.name)
                if parse_context() or self.stream.current.type != 'comma':
                    break
            else:
                break
        if not hasattr(node, 'with_context'):
            node.with_context = False
            self.stream.skip_if('comma')
        return node

def parse_signature(self, node):
        node.args = args = []
        node.defaults = defaults = []
        self.stream.expect('lparen')
        while self.stream.current.type != 'rparen':
            if args:
                self.stream.expect('comma')
            arg = self.parse_assign_target(name_only=True)
            arg.set_ctx('param')
            if self.stream.skip_if('assign'):
                defaults.append(self.parse_expression())
            args.append(arg)
        self.stream.expect('rparen')

def parse_call_block(self):
        node = nodes.CallBlock(lineno=next(self.stream).lineno)
        if self.stream.current.type == 'lparen':
            self.parse_signature(node)
        else:
            node.args = []
            node.defaults = []

node.call = self.parse_expression()
        if not isinstance(node.call, nodes.Call):
            self.fail('expected call', node.lineno)
        node.body = self.parse_statements(('name:endcall',), drop_needle=True)
        return node

def parse_filter_block(self):
        node = nodes.FilterBlock(lineno=next(self.stream).lineno)
        node.filter = self.parse_filter(None, start_inline=True)
        node.body = self.parse_statements(('name:endfilter',),
                                          drop_needle=True)
        return node

def parse_macro(self):
        node = nodes.Macro(lineno=next(self.stream).lineno)
        node.name = self.parse_assign_target(name_only=True).name
        self.parse_signature(node)
        node.body = self.parse_statements(('name:endmacro',),
                                          drop_needle=True)
        return node

def parse_print(self):
        node = nodes.Output(lineno=next(self.stream).lineno)
        node.nodes = []
        while self.stream.current.type != 'block_end':
            if node.nodes:
                self.stream.expect('comma')
            node.nodes.append(self.parse_expression())
        return node

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(with_postfix=False)
            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_expression(self, with_condexpr=True):
        """Parse an expression.  Per default all expressions are parsed, if
        the optional `with_condexpr` parameter is set to `False` conditional
        expressions are not parsed.
        """
        if with_condexpr:
            return self.parse_condexpr()
        return self.parse_or()

def parse_condexpr(self):
        lineno = self.stream.current.lineno
        expr1 = self.parse_or()
        while self.stream.skip_if('name:if'):
            expr2 = self.parse_or()
            if self.stream.skip_if('name:else'):
                expr3 = self.parse_condexpr()
            else:
                expr3 = None
            expr1 = nodes.CondExpr(expr2, expr1, expr3, lineno=lineno)
            lineno = self.stream.current.lineno
        return expr1

def parse_or(self):
        lineno = self.stream.current.lineno
        left = self.parse_and()
        while self.stream.skip_if('name:or'):
            right = self.parse_and()
            left = nodes.Or(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_and(self):
        lineno = self.stream.current.lineno
        left = self.parse_not()
        while self.stream.skip_if('name:and'):
            right = self.parse_not()
            left = nodes.And(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_not(self):
        if self.stream.current.test('name:not'):
            lineno = next(self.stream).lineno
            return nodes.Not(self.parse_not(), lineno=lineno)
        return self.parse_compare()

def parse_compare(self):
        lineno = self.stream.current.lineno
        expr = self.parse_add()
        ops = []
        while 1:
            token_type = self.stream.current.type
            if token_type in _compare_operators:
                next(self.stream)
                ops.append(nodes.Operand(token_type, self.parse_add()))
            elif self.stream.skip_if('name:in'):
                ops.append(nodes.Operand('in', self.parse_add()))
            elif self.stream.current.test('name:not') and \
                 self.stream.look().test('name:in'):
                self.stream.skip(2)
                ops.append(nodes.Operand('notin', self.parse_add()))
            else:
                break
            lineno = self.stream.current.lineno
        if not ops:
            return expr
        return nodes.Compare(expr, ops, lineno=lineno)

def parse_add(self):
        lineno = self.stream.current.lineno
        left = self.parse_sub()
        while self.stream.current.type == 'add':
            next(self.stream)
            right = self.parse_sub()
            left = nodes.Add(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_sub(self):
        lineno = self.stream.current.lineno
        left = self.parse_concat()
        while self.stream.current.type == 'sub':
            next(self.stream)
            right = self.parse_concat()
            left = nodes.Sub(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_concat(self):
        lineno = self.stream.current.lineno
        args = [self.parse_mul()]
        while self.stream.current.type == 'tilde':
            next(self.stream)
            args.append(self.parse_mul())
        if len(args) == 1:
            return args[0]
        return nodes.Concat(args, lineno=lineno)

def parse_mul(self):
        lineno = self.stream.current.lineno
        left = self.parse_div()
        while self.stream.current.type == 'mul':
            next(self.stream)
            right = self.parse_div()
            left = nodes.Mul(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_div(self):
        lineno = self.stream.current.lineno
        left = self.parse_floordiv()
        while self.stream.current.type == 'div':
            next(self.stream)
            right = self.parse_floordiv()
            left = nodes.Div(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_floordiv(self):
        lineno = self.stream.current.lineno
        left = self.parse_mod()
        while self.stream.current.type == 'floordiv':
            next(self.stream)
            right = self.parse_mod()
            left = nodes.FloorDiv(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_mod(self):
        lineno = self.stream.current.lineno
        left = self.parse_pow()
        while self.stream.current.type == 'mod':
            next(self.stream)
            right = self.parse_pow()
            left = nodes.Mod(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_pow(self):
        lineno = self.stream.current.lineno
        left = self.parse_unary()
        while self.stream.current.type == 'pow':
            next(self.stream)
            right = self.parse_unary()
            left = nodes.Pow(left, right, lineno=lineno)
            lineno = self.stream.current.lineno
        return left

def parse_unary(self):
        token_type = self.stream.current.type
        lineno = self.stream.current.lineno
        if token_type == 'sub':
            next(self.stream)
            node = self.parse_unary()
            return nodes.Neg(node, lineno=lineno)
        if token_type == 'add':
            next(self.stream)
            node = self.parse_unary()
            return nodes.Pos(node, lineno=lineno)
        return self.parse_primary()

def parse_primary(self, with_postfix=True):
        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()
            self.stream.expect('rparen')
        elif token.type == 'lbracket':
            node = self.parse_list()
        elif token.type == 'lbrace':
            node = self.parse_dict()
        else:
            self.fail("unexpected token '%s'" % (token,), token.lineno)
        if with_postfix:
            node = self.parse_postfix(node)
        return node

def parse_tuple(self, simplified=False, with_condexpr=True,
                    extra_end_rules=None):
        """Works like `parse_expression` but if multiple expressions are
        delimited by a comma a :class:`~jinja2.nodes.Tuple` node is created.
        This method could also return a regular expression instead of a tuple
        if no commas where found.

The default parsing mode is a full tuple.  If `simplified` is `True`
        only names and literals are parsed.  The `no_condexpr` parameter is
        forwarded to :meth:`parse_expression`.

Because tuples do not require delimiters and may end in a bogus comma
        an extra hint is needed that marks the end of a tuple.  For example
        for loops support tuples between `for` and `in`.  In that case the
        `extra_end_rules` is set to ``['name:in']``.
        """
        lineno = self.stream.current.lineno
        if simplified:
            parse = lambda: self.parse_primary(with_postfix=False)
        elif with_condexpr:
            parse = self.parse_expression
        else:
            parse = lambda: self.parse_expression(with_condexpr=False)
        args = []
        is_tuple = False
        while 1:
            if args:
                self.stream.expect('comma')
            if self.is_tuple_end(extra_end_rules):
                break
            args.append(parse())
            if self.stream.current.type == 'comma':
                is_tuple = True
            else:
                break
            lineno = self.stream.current.lineno
        if not is_tuple and args:
            return args[0]
        return nodes.Tuple(args, 'load', lineno=lineno)

def parse_list(self):
        token = self.stream.expect('lbracket')
        items = []
        while self.stream.current.type != 'rbracket':
            if items:
                self.stream.expect('comma')
            if self.stream.current.type == 'rbracket':
                break
            items.append(self.parse_expression())
        self.stream.expect('rbracket')
        return nodes.List(items, lineno=token.lineno)

def parse_dict(self):
        token = self.stream.expect('lbrace')
        items = []
        while self.stream.current.type != 'rbrace':
            if items:
                self.stream.expect('comma')
            if self.stream.current.type == 'rbrace':
                break
            key = self.parse_expression()
            self.stream.expect('colon')
            value = self.parse_expression()
            items.append(nodes.Pair(key, value, lineno=key.lineno))
        self.stream.expect('rbrace')
        return nodes.Dict(items, lineno=token.lineno)

def parse_postfix(self, node):
        while 1:
            token_type = self.stream.current.type
            if token_type == 'dot' or token_type == 'lbracket':
                node = self.parse_subscript(node)
            elif token_type == 'lparen':
                node = self.parse_call(node)
            elif token_type == 'pipe':
                node = self.parse_filter(node)
            elif token_type == 'name' and self.stream.current.value == 'is':
                node = self.parse_test(node)
            else:
                break
        return node

def parse_subscript(self, node):
        token = next(self.stream)
        if token.type == 'dot':
            attr_token = self.stream.current
            next(self.stream)
            if attr_token.type == 'name':
                return nodes.Getattr(node, attr_token.value, 'load',
                                     lineno=token.lineno)
            elif attr_token.type != 'integer':
                self.fail('expected name or number', attr_token.lineno)
            arg = nodes.Const(attr_token.value, lineno=attr_token.lineno)
            return nodes.Getitem(node, arg, 'load', lineno=token.lineno)
        if token.type == 'lbracket':
            priority_on_attribute = False
            args = []
            while self.stream.current.type != 'rbracket':
                if args:
                    self.stream.expect('comma')
                args.append(self.parse_subscribed())
            self.stream.expect('rbracket')
            if len(args) == 1:
                arg = args[0]
            else:
                arg = nodes.Tuple(args, 'load', lineno=token.lineno)
            return nodes.Getitem(node, arg, 'load', lineno=token.lineno)
        self.fail('expected subscript expression', self.lineno)

def parse_subscribed(self):
        lineno = self.stream.current.lineno

if self.stream.current.type == 'colon':
            next(self.stream)
            args = [None]
        else:
            node = self.parse_expression()
            if self.stream.current.type != 'colon':
                return node
            next(self.stream)
            args = [node]

if self.stream.current.type == 'colon':
            args.append(None)
        elif self.stream.current.type not in ('rbracket', 'comma'):
            args.append(self.parse_expression())
        else:
            args.append(None)

if self.stream.current.type == 'colon':
            next(self.stream)
            if self.stream.current.type not in ('rbracket', 'comma'):
                args.append(self.parse_expression())
            else:
                args.append(None)
        else:
            args.append(None)

return nodes.Slice(lineno=lineno, *args)

def parse_call(self, node):
        token = self.stream.expect('lparen')
        args = []
        kwargs = []
        dyn_args = dyn_kwargs = None
        require_comma = False

def ensure(expr):
            if not expr:
                self.fail('invalid syntax for function call expression',
                          token.lineno)

while self.stream.current.type != 'rparen':
            if require_comma:
                self.stream.expect('comma')
                # support for trailing comma
                if self.stream.current.type == 'rparen':
                    break
            if self.stream.current.type == 'mul':
                ensure(dyn_args is None and dyn_kwargs is None)
                next(self.stream)
                dyn_args = self.parse_expression()
            elif self.stream.current.type == 'pow':
                ensure(dyn_kwargs is None)
                next(self.stream)
                dyn_kwargs = self.parse_expression()
            else:
                ensure(dyn_args is None and dyn_kwargs is None)
                if self.stream.current.type == 'name' and \
                    self.stream.look().type == 'assign':
                    key = self.stream.current.value
                    self.stream.skip(2)
                    value = self.parse_expression()
                    kwargs.append(nodes.Keyword(key, value,
                                                lineno=value.lineno))
                else:
                    ensure(not kwargs)
                    args.append(self.parse_expression())

require_comma = True
        self.stream.expect('rparen')

if node is None:
            return args, kwargs, dyn_args, dyn_kwargs
        return nodes.Call(node, args, kwargs, dyn_args, dyn_kwargs,
                          lineno=token.lineno)

def parse_filter(self, node, start_inline=False):
        while self.stream.current.type == 'pipe' or start_inline:
            if not start_inline:
                next(self.stream)
            token = self.stream.expect('name')
            name = token.value
            while self.stream.current.type == 'dot':
                next(self.stream)
                name += '.' + self.stream.expect('name').value
            if self.stream.current.type == 'lparen':
                args, kwargs, dyn_args, dyn_kwargs = self.parse_call(None)
            else:
                args = []
                kwargs = []
                dyn_args = dyn_kwargs = None
            node = nodes.Filter(node, name, args, kwargs, dyn_args,
                                dyn_kwargs, lineno=token.lineno)
            start_inline = False
        return node

def parse_test(self, node):
        token = next(self.stream)
        if self.stream.current.test('name:not'):
            next(self.stream)
            negated = True
        else:
            negated = False
        name = self.stream.expect('name').value
        while self.stream.current.type == 'dot':
            next(self.stream)
            name += '.' + self.stream.expect('name').value
        dyn_args = dyn_kwargs = None
        kwargs = []
        if self.stream.current.type == 'lparen':
            args, kwargs, dyn_args, dyn_kwargs = self.parse_call(None)
        elif self.stream.current.type in ('name', 'string', 'integer',
                                          'float', 'lparen', 'lbracket',
                                          'lbrace') and not \
             self.stream.current.test_any('name:else', 'name:or',
                                          'name:and'):
            if self.stream.current.test('name:is'):
                self.fail('You cannot chain multiple tests with is')
            args = [self.parse_expression()]
        else:
            args = []
        node = nodes.Test(node, name, args, kwargs, dyn_args,
                          dyn_kwargs, lineno=token.lineno)
        if negated:
            node = nodes.Not(node, lineno=token.lineno)
        return node

def subparse(self, end_tokens=None):
        body = []
        data_buffer = []
        add_data = data_buffer.append

def flush_data():
            if data_buffer:
                lineno = data_buffer[0].lineno
                body.append(nodes.Output(data_buffer[:], lineno=lineno))
                del data_buffer[:]

while self.stream:
            token = self.stream.current
            if token.type == 'data':
                if token.value:
                    add_data(nodes.TemplateData(token.value,
                                                lineno=token.lineno))
                next(self.stream)
            elif token.type == 'variable_begin':
                next(self.stream)
                add_data(self.parse_tuple(with_condexpr=True))
                self.stream.expect('variable_end')
            elif token.type == 'block_begin':
                flush_data()
                next(self.stream)
                if end_tokens is not None and \
                   self.stream.current.test_any(*end_tokens):
                    return body
                rv = self.parse_statement()
                if isinstance(rv, list):
                    body.extend(rv)
                else:
                    body.append(rv)
                self.stream.expect('block_end')
            else:
                raise AssertionError('internal parsing error')

flush_data()
        return body

def parse(self):
        """Parse the whole template into a `Template` node."""
        result = nodes.Template(self.subparse(), lineno=1)
        result.set_environment(self.environment)
        return result

cmd: