81 lines
3.2 KiB
Python
81 lines
3.2 KiB
Python
from z3 import *
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from enum import Enum
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from logics.bags import *
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rsLTL_form_type = Enum('rsLTL_form_type', 'bag l_and l_or l_not t_globally t_finally t_next t_until t_release')
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class Formula_rsLTL(object):
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def __init__(self, f_type, L_oper = None, R_oper = None, sub_oper = None, bag = None):
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self.f_type = f_type
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self.left_operand = L_oper
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self.right_operand = R_oper
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self.sub_operand = sub_oper
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self.bag_descr = bag
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if isinstance(self.left_operand, BagDescription):
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self.left_operand = Formula_rsLTL.f_bag(self.left_operand)
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if isinstance(self.right_operand, BagDescription):
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self.right_operand = Formula_rsLTL.f_bag(self.right_operand)
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def __repr__(self):
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if self.f_type == rsLTL_form_type.bag:
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return repr(self.bag_descr)
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if self.f_type == rsLTL_form_type.l_not:
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return "~( " + repr(self.left_operand) + " )"
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if self.f_type == rsLTL_form_type.t_globally:
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return "G[" + repr(self.sub_operand) + "]( " + repr(self.left_operand) + " )"
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if self.f_type == rsLTL_form_type.t_finally:
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return "F[" + repr(self.sub_operand) + "]( " + repr(self.left_operand) + " )"
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if self.f_type == rsLTL_form_type.t_next:
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return "X[" + repr(self.sub_operand) + "]( " + repr(self.left_operand) + " )"
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if self.f_type == rsLTL_form_type.l_and:
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return "( " + repr(self.left_operand) + " & " + repr(self.right_operand) + " )"
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if self.f_type == rsLTL_form_type.l_or:
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return "( " + repr(self.left_operand) + " | " + repr(self.right_operand) + " )"
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if self.f_type == rsLTL_form_type.t_until:
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return "( " + repr(self.left_operand) + " U[" + repr(self.sub_operand) + "]" + repr(self.right_operand) + " )"
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if self.f_type == rsLTL_form_type.t_release:
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return "( " + repr(self.left_operand) + " R[" + repr(self.sub_operand) + "]" + repr(self.right_operand) + " )"
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@property
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def is_bag(self):
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return self.f_type == rsLTL_form_type.bag
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@classmethod
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def f_bag(cls, bag_descr):
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return cls(rsLTL_form_type.bag, bag = bag_descr)
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@classmethod
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def f_X(cls, sub, arg):
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return cls(rsLTL_form_type.next, L_oper = arg, sub_oper = sub)
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@classmethod
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def f_G(cls, sub, arg):
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return cls(rsLTL_form_type.t_globally, L_oper = arg, sub_oper = sub)
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@classmethod
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def f_U(cls, sub, arg_L, arg_R):
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return cls(rsLTL_form_type.t_until, L_oper = arg_L, R_oper = arg_R, sub_oper = sub)
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@classmethod
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def f_F(cls, sub, arg_L, arg_R):
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return cls(rsLTL_form_type.t_finally, L_oper = arg_L, R_oper = arg_R, sub_oper = sub)
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@classmethod
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def f_R(cls, sub, arg_L, arg_R):
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return cls(rsLTL_form_type.t_release, L_oper = arg_L, R_oper = arg_R, sub_oper = sub)
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def __and__(self, other):
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return Formula_rsLTL(rsLTL_form_type.l_and, L_oper = self, R_oper = other)
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def __or__(self, other):
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return Formula_rsLTL(rsLTL_form_type.l_or, L_oper = self, R_oper = other)
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def __invert__(self):
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return Formula_rsLTL(rsLTL_form_type.l_not, L_oper = self)
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# EOF |