def mcompose(*mfuncs):
return compose(unit, bind_compose(*mfuncs))
import ast
import collections
import operator
from hornet.util import pairwise, identity, const, decrement
from hornet.util import compose2 as compose
from hornet.expressions import is_name, is_operator, is_tuple, is_astwrapper
from hornet.expressions import lift, promote
class ParseError(Exception):
pass
parse_error = compose('Precedence conflict: ({}) {} ({})'.format, ParseError)
class Token(collections.namedtuple('BaseToken', 'lbp rbp node')):
__slots__ = ()
def __lt__(self, other):
return self.rbp < other.lbp
def __gt__(self, other):
return self.rbp > other.lbp
@classmethod
def fixity(cls, left, right):
def lift(func):
return compose(func, unit)
