Added RPN

Author: KrowosDogg

RPN/funс.c

@@ -9,7 +9,6 @@
 
 int IsNumber (char *lexem)
 {
-    //FIXME in future -- correctness of number is not checked absolutely
     return lexem[0] <= '9' && lexem[0] >= '0';
 }
 

RPN/main.c

@@ -27,7 +27,6 @@ void printHelp()
            "Operations: +, -, *, / -- only binary ones.\n");
 }
 
-//Ðàáîòàåò òîëüêî åñëè ëåêñåìû ðàçäåëåíû ðîâíî îäíèì ïðîáåëîì!!!
 char ** parceLexems(char *line, int *lexems_number)
 {
     const int max_lexems_number = 10000;

RPN/stackBridge.c

@@ -13,7 +13,7 @@ void stackBridge_push (stackBridge *S, int value)
 int stackBridge_pop (stackBridge *S)
 {
     if (stackBridge_is_empty(S))
-        return -1; //BUG. Need to throw exception here.
+        return -1;
     int value = stackBridge_top(S);
 
     struct List *temp = S->listBegin;
@@ -35,7 +35,7 @@ int stackBridge_is_empty (const stackBridge *S)
 
 int stackBridge_is_full (const stackBridge *S)
 {
-    return 0; //Ñ÷èòàåì, ÷òî íèêîãäà íå ïåðåïîëíÿåòñÿ
+    return 0;
 }
 
 void stackBridge_init (stackBridge *S)