def bool_opr(lval, rval, op):
if isAthValue(lval):
lval = AthSymbol(bool(lval), left=lval)
if isAthValue(rval):
rval = AthSymbol(bool(rval), left=rval)
if op == 'l&':
return lval and rval
elif op == 'l|':
return lval or rval
elif op == 'l^':
return (lval if lval and not rval else
rval if rval and not lval else AthSymbol(False))
raise SyntaxError(f'Invalid comparison operator: {op}')
def unopr_expression(env, opr, val):
ans = unops[opr](val)
if isAthValue(ans):
return AthSymbol(left=ans)
return ans
def biopr_expression(env, opr, lft, rht):
ans = biops[opr](lft, rht)
if isAthValue(ans):
return AthSymbol(left=ans)
return ans
def bool_not(val):
if isAthValue(val):
val = AthSymbol(bool(val), left=val)
return AthSymbol(not val, val.left, val.right)
def cmp_opr(lval, rval, op):
if isAthValue(lval):
lval = AthSymbol(bool(lval), left=lval)
return op(lval, rval)