1 files changed, 11 insertions, 0 deletions
diff --git a/undo.cpp b/undo.cpp
index da0b593..8072540 100644
--- a/undo.cpp
+++ b/undo.cpp
@@ -1,7 +1,9 @@
+#include <stdio.h>
 #include <string.h>
 #include <bsd/sys/queue.h>
 
 #include <glib.h>
+#include <glib/gstdio.h>
 
 #include <Scintilla.h>
 
@@ -9,6 +11,8 @@
 #include "interface.h"
 #include "undo.h"
 
+//#define DEBUG
+
 UndoStack undo;
 
 void
@@ -21,6 +25,9 @@ void
 UndoStack::push(UndoToken *token)
 {
 	if (enabled) {
+#ifdef DEBUG
+		g_printf("UNDO PUSH %p\n", token);
+#endif
 		token->pos = strlen(cmdline);
 		SLIST_INSERT_HEAD(&head, token, tokens);
 	} else {
@@ -39,6 +46,10 @@ UndoStack::pop(gint pos)
 {
 	while (!SLIST_EMPTY(&head) && SLIST_FIRST(&head)->pos >= pos) {
 		UndoToken *top = SLIST_FIRST(&head);
+#ifdef DEBUG
+		g_printf("UNDO POP %p\n", top);
+		fflush(stdout);
+#endif
 
 		top->run();