From c5921aec313cefa8bd6e8f4c70f057c137133028 Mon Sep 17 00:00:00 2001
From: Pedro Souza <pedro@masba.net>
Date: Wed, 3 Apr 2024 07:27:36 -0300
Subject: add parethesis support

---
 tree.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'tree.c')

diff --git a/tree.c b/tree.c
index b53ece2..fbb561a 100644
--- a/tree.c
+++ b/tree.c
@@ -62,3 +62,10 @@ void fprintTree(FILE *stream, node *root, int level) {
 void printTree(node *root, int level) {
   fprintTree(stdout, root, level);
 }
+
+void free_node(node *n) {
+  if (n->lhs) free_node(n->lhs);
+  if (n->rhs) free_node(n->rhs);
+  free(n);
+}
+
-- 
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