# HG changeset patch
# User Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
# Date 1439359850 -32400
# Node ID eecddded9b9140aed1091b0029dc5ee92f6b572e
# Parent  d27b3af1fe75ec63e44460806255eb69a9a314f7
implement printTree

diff -r d27b3af1fe75 -r eecddded9b91 c/regexParser/main.cc
--- a/c/regexParser/main.cc	Tue Aug 11 19:46:33 2015 +0900
+++ b/c/regexParser/main.cc	Wed Aug 12 15:10:50 2015 +0900
@@ -203,21 +203,23 @@
  *       a
  */
 
-void descendTree(NodePtr n,int d) {
+void descendTree(NodePtr n) {
+    static int d = 0;
     if (n->right != NULL) {
         d++;
-        descendTree(n->right, d);
-    } else if (n->left != NULL) {
+        descendTree(n->right);
+        d--;
+    }
+    printf("%*c%c\n",d*4, ' ',n->Value.character);
+    if (n->left != NULL) {
         d++;
-        descendTree(n->right, d);
-    } else {
-        printf("%c\n",n->Value.character);
+        descendTree(n->left);
+        d--;
     }
 }
 
 void printTree(NodePtr n) {
-    int depth = 0;
-    descendTree(n,depth);
+    descendTree(n);
 }