dodanie kilku edge caseów

program.py

@@ -19,7 +19,7 @@ class SimpleInterpreter(AbstractInterpreter):
             logic_signs = ['=', '>', '&', '|', '!', '(', ')']
             return char in logic_signs
         def isParentice(char):
-            return char in ('(', ')')
+            return char in ['(', ')']
         def isVariable(char):
             return  not isSign(char) 
         def isNegation(char):
@@ -31,13 +31,21 @@ class SimpleInterpreter(AbstractInterpreter):
             prev = formula.s[i-1] if i>0 else None #None, gdy jesteśmy na pierwszym znaku
             if (char=='(' and isVariable(prev) and prev is not None): #a(b|c)
                 return False
+            if (prev is None):
+                if not (isVariable(char) or isParentice(char) or isNegation(char)):
+                    return False
             if isSign(char):
+                
                 if (not isNegation(char)):
                     if isSign(prev) and not isNegation(prev): # tylko negacje mogą się powtarzać po innym znaku
                         return False
-                else:
-                    if isVariable(prev) and prev is not None: # obrona przed a!>b
-                        return False
+                if isNegation(prev):
+                  
+                    if not (isNegation(char) or isParentice(char)):
+                        print("xd")
+                        return False 
+                if isVariable(prev): #a!
+                    return False
             else:
                  #if current char is a variable
                  if isVariable(prev) and prev is not None: #Obrona abc>d
@@ -113,6 +121,7 @@ class ProperInterpreter(AbstractInterpreter):
         if len(formula)==0:
             # print("Empty subformula")
              return None
+        if (formula=='!'): raise Exception("Negacja źle postawiona")
         x=[0 for u in formula]
         current_depth=0
         for i,char in enumerate(formula):
@@ -131,7 +140,7 @@ class ProperInterpreter(AbstractInterpreter):
         if current_depth!=0:
              raise Exception("Nawiasy źle umieszczone w podformule: {0}".format(formula))
            
-        #print(formula)
+        print(formula)
         
         min_depth = min(x)
         
@@ -148,7 +157,7 @@ class ProperInterpreter(AbstractInterpreter):
                 slice_point = i
                 break
         if is_simple:
-           # print(formula, " is simple")
+            #print(formula, " is simple")
             if not self.check_simple_formula(formula):
                 raise Exception("Błąd na poziomie formuły bez zagnieżdzeń: {0}".format(formula))
                 return False
@@ -177,7 +186,7 @@ class Formula:
     def isValid(self, interpreter=None)->bool:
         i = self.__i if interpreter is None else interpreter
         return i.isValid(self)
-
+sim = SimpleInterpreter()
 if len(sys.argv) > 1 :
     i = ProperInterpreter()
     if '-g' in sys.argv: 
@@ -192,7 +201,9 @@ if len(sys.argv) > 1 :
         for l in u:
             print(Formula(l,i).isValid())
     else:
-        print(Formula( sys.argv[1] if sys.argv[1] != '-g' else sys.argv[2],i).isValid())
+        print(
+            Formula(sys.argv[1] if sys.argv[1] != '-g' else sys.argv[2],i).isValid()
+            )
    
 else:
     print("help?")