* src/main.c (clean_up): call del_frame_undo not pop_frame_undo

* src/globals.h: new global prototype rp_frame_redos

* src/globals.c: new global rp_frame_redos

* src/actions.h: new command 'undo'
(del_frame_undo): new prototype
(pop_frame_undo): delete prototype

* src/actions.c (init_user_commands): new command 'undo'
(clear_frame_redos): new function
(del_frame_undo): likewise
(push_frame_undo): call del_frame_undo instead of pop_frame_undo. call clear_frame_redos.
(pop_frame_list): new function
(pop_frame_undo): returns the popped frame. all callers updated.
(pop_frame_redo): new function
(initialize_default_keybindings): bind undo to u and C-u, bind redo to U.
(set_maxundos): call del_frame_undo instead of pop_frame_redo
(cmd_redo): new function

1 files changed, 2 insertions, 1 deletions

diff --git a/src/actions.h b/src/actions.h
index 58a18cc..1ced405 100644
--- a/src/actions.h
+++ b/src/actions.h
@@ -202,10 +202,11 @@ RP_CMD (prompt);
 RP_CMD (sdump);
 RP_CMD (sfdump);
 RP_CMD (undo);
+RP_CMD (redo);
 RP_CMD (putsel);
 RP_CMD (getsel);
 
-void pop_frame_undo (rp_frame_undo *u);
+void del_frame_undo (rp_frame_undo *u);
 
 rp_keymap *find_keymap (char *name);
 void init_user_commands();