Add reserved words

cinc/main.c

@@ -11,8 +11,6 @@
 #include <stdlib.h>
 #include "tokenize.h"
 
-Token* tokenfunc(void);
-
 int main(int argc, const char * argv[]) {
     char* prgstr="int main() {\nreturn 0;\n}";
     Token* tokens=tokenize(prgstr);

cinc/token.c

@@ -59,6 +59,12 @@ void print_tok(Token* token) {
             case TYPE_NUM:
                 printf("NUM");
                 break;
+            case TYPE_RETURN:
+                printf("RETURN");
+                break;
+            case TYPE_TYPE:
+                printf("TYPE");
+                break;
             default:
                 break;
         }

cinc/tokenize.c

@@ -12,6 +12,7 @@
 #include <stdlib.h>
 #include <stdbool.h>
 #include <ctype.h>
+#include <string.h>
 
 #define ID_MAX_SIZE 31
 
@@ -36,6 +37,11 @@ Token* next_token(int* strpos, char* prg, Token* prev) {
             }
         }
         id[length]=0;
+        if (strcmp("return",id)==0) {
+            return new_token(TYPE_RETURN, NULL, prev);
+        } else if (strcmp("int",id)==0) {
+           return new_token(TYPE_TYPE, val_from_const_str("int"), prev);
+        }
         return new_token(TYPE_IDENT, val_from_str(id), prev);
     } else if (isdigit(current)) {
         char* id=malloc(sizeof(char)*ID_MAX_SIZE+1);