1 files changed, 4 insertions, 4 deletions

diff --git a/src/gram.y b/src/gram.y
index d3f64b8..0791b20 100755
--- a/src/gram.y
+++ b/src/gram.y
@@ -419,14 +419,14 @@ command:
                                   extern graphADT graph;
                                   #ifdef UNDO
                                   create_undo_action();
-                                  copy_to_undostruct($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col, 'd');
+                                  copy_to_undostruct($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col, UNDO_DEL);
                                   // here we save in undostruct, all the ents that depends on the deleted one (before change)
                                   extern struct ent_ptr * deps;
                                   int i, n = 0;
                                   ents_that_depends_on_range($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col);
                                   if (deps != NULL) {
                                       for (i = 0, n = deps->vf; i < n; i++)
-                                          copy_to_undostruct(deps[i].vp->row, deps[i].vp->col, deps[i].vp->row, deps[i].vp->col, 'd');
+                                          copy_to_undostruct(deps[i].vp->row, deps[i].vp->col, deps[i].vp->row, deps[i].vp->col, UNDO_DEL);
                                   }
                                   #endif
                                   if (getVertex(graph, lookat($2.left.vp->row, $2.left.vp->col), 0) != NULL) destroy_vertex(lookat($2.left.vp->row, $2.left.vp->col));
@@ -446,13 +446,13 @@ command:
                                       do_trigger($2.left.vp,TRG_WRITE);
 
                                   #ifdef UNDO
-                                  copy_to_undostruct($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col, 'a');
+                                  copy_to_undostruct($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col, UNDO_ADD);
                                   // here we save in undostruct, all the ents that depends on the deleted one (after change)
                                   if (deps != NULL) free(deps);
                                   ents_that_depends_on_range($2.left.vp->row, $2.left.vp->col, $2.left.vp->row, $2.left.vp->col);
                                   if (deps != NULL) {
                                       for (i = 0, n = deps->vf; i < n; i++)
-                                          copy_to_undostruct(deps[i].vp->row, deps[i].vp->col, deps[i].vp->row, deps[i].vp->col, 'a');
+                                          copy_to_undostruct(deps[i].vp->row, deps[i].vp->col, deps[i].vp->row, deps[i].vp->col, UNDO_ADD);
                                       free(deps);
                                       deps = NULL;
                                   }