From 0726692546c16c16344c8fcdc21942e999d52ea9 Mon Sep 17 00:00:00 2001
From: "Kartik K. Agaram" <vc@akkartik.com>
Date: Fri, 26 Nov 2021 19:45:19 -0800
Subject: more obvious serialization of undo events

---
 src/lua.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lua.c b/src/lua.c
index 7662a55..d34b902 100644
--- a/src/lua.c
+++ b/src/lua.c
@@ -453,6 +453,10 @@ static void save_image (lua_State *L) {
     fprintf(out, "  {\n");
     for (lua_pushnil(L); lua_next(L, table) != 0; lua_pop(L, 1)) {
       const char* key = lua_tostring(L, -2);
+      if (strcmp(key, "__teliva_undo") == 0) {
+        fprintf(out, "    %s = %d\n", key, lua_tointeger(L, -1));
+        continue;
+      }
       const char* value = lua_tostring(L, -1);
       fprintf(out, "    %s = [==[\n", key);
       fprintf(out, "%s", value);
-- 
cgit 1.4.1-2-gfad0