Core undo tree changes

1 files changed, 2 insertions, 0 deletions

diff --git a/text.h b/text.h
index 099cbe4..f5091c5 100644
--- a/text.h
+++ b/text.h
@@ -49,6 +49,8 @@ void text_snapshot(Text*);
  * the change occured or EPOS if nothing could be undo/redo. */
 size_t text_undo(Text*);
 size_t text_redo(Text*);
+size_t text_earlier(Text*);
+size_t text_later(Text*);
 
 size_t text_pos_by_lineno(Text*, size_t lineno);
 size_t text_lineno_by_pos(Text*, size_t pos);