# Path: mcm/datastructures.py
# class CmdPathRow(dict):
# 
# 
#     def __str__(self):
#         bool_map = {True:'yes', False:'no', None:'""', '':'""'}
#         return ' '.join('{}={}'.format(key, bool_map.get(value, value)) for key, value in self.items())
# 
# 
#     def __hash__(self):
#         return hash(tuple(self.items()))
# 
# 
#     def __sub__(self, other):
#         '''Return new instance with key,valie pairs from self not listed in other.'''
# 
#         diff = dict(set(self.items()) - set(other.items()))
#         return CmdPathRow( diff )
# 
# 
#     def isunique(self, other, keys):
#         '''Test whether every key,value pair (from keys) is in other.'''
# 
#         pairs = set( (key,self[key]) for key in keys )
#         return pairs <= set(other.items())


from itertools import zip_longest
from mcm.datastructures import CmdPathRow
    elif path.type == 'ordered':
        return OrderedComparator()
    elif path.type == 'uniquekey':
        return UniqueKeyComparator(keys=path.keys)



class OrderedComparator:


    def __init__(self):

        self.DEL = []
        self.SET= []
        self.ADD = []


    def decide(self, wanted, difference, present):

        if wanted and difference and not present:
            self.ADD.append( wanted )
        elif not wanted and not difference and present:
            self.DEL.append( present )
        elif wanted and difference and present:
            difference['.id'] = present['.id']
            self.SET.append( difference )


    def compare(self, wanted, present):


# Path: mcm/datastructures.py
# class CmdPathRow(dict):
# 
# 
#     def __str__(self):
#         bool_map = {True:'yes', False:'no', None:'""', '':'""'}
#         return ' '.join('{}={}'.format(key, bool_map.get(value, value)) for key, value in self.items())
# 
# 
#     def __hash__(self):
#         return hash(tuple(self.items()))
# 
# 
#     def __sub__(self, other):
#         '''Return new instance with key,valie pairs from self not listed in other.'''
# 
#         diff = dict(set(self.items()) - set(other.items()))
#         return CmdPathRow( diff )
# 
# 
#     def isunique(self, other, keys):
#         '''Test whether every key,value pair (from keys) is in other.'''
# 
#         pairs = set( (key,self[key]) for key in keys )
#         return pairs <= set(other.items())


# Path: mcm/comparators.py
from itertools import zip_longest
from mcm.datastructures import CmdPathRow

    elif path.type == 'ordered':
        return OrderedComparator()
    elif path.type == 'uniquekey':
        return UniqueKeyComparator(keys=path.keys)



class OrderedComparator:


    def __init__(self):

        self.DEL = []
        self.SET= []
        self.ADD = []


    def decide(self, wanted, difference, present):

        if wanted and difference and not present:
            self.ADD.append( wanted )
        elif not wanted and not difference and present:
            self.DEL.append( present )
        elif wanted and difference and present:
            difference['.id'] = present['.id']
            self.SET.append( difference )


    def compare(self, wanted, present):


        fillval = CmdPathRow(dict())