add parethesis support

1 files changed, 5 insertions, 1 deletions

diff --git a/main.c b/main.c
index 5d51875..0477bae 100644
--- a/main.c
+++ b/main.c
@@ -23,6 +23,8 @@ struct chartoken lex_str(void *v) {
       case '!': token.id = TOKEN_UNARY_OPERATOR; break;
       case '*':
       case '+': token.id = TOKEN_BINARY_OPERATOR; break;
+      case '(': token.id = TOKEN_OPEN_PAREN; break;
+      case ')': token.id = TOKEN_CLOSE_PAREN; break;
       default: break;
     }
   }
@@ -36,7 +38,9 @@ int main(){
   scanf("%[^\n]", str);
   char str2[100];
   strncpy(str2, str, 100);
-  printTree(parse(str2),0);
+  node *exp = parse(str2);
+  printTree(exp,0);
+  free_node(exp);
 
   struct lex_str_data lxd;
   lxd.str = str;