Save undo records for newline insertions.

 That makes mg behave more like GNU emacs.

1 files changed, 22 insertions, 1 deletions

diff --git a/usr.bin/mg/undo.c b/usr.bin/mg/undo.c
index 1866d7432d5..2dbe5a5dbc3 100644
--- a/usr.bin/mg/undo.c
+++ b/usr.bin/mg/undo.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: undo.c,v 1.4 2002/02/21 04:16:27 vincent Exp $ */
+/* $OpenBSD: undo.c,v 1.5 2002/02/21 04:21:05 vincent Exp $ */
 /*
  * Copyright (c) 2002 Vincent Labrecque <vincent@openbsd.org>
  *							 All rights reserved.
@@ -187,6 +187,27 @@ undo_enable(int on)
 }
 
 int
+undo_add_custom(int type, LINE *lp, int offset, void *content, int size)
+{
+	struct undo_rec *rec;
+
+	if (undo_disable_flag)
+		return TRUE;
+	rec = new_undo_record();
+	rec->pos = find_offset(lp, offset);
+	rec->buf = curbp;
+	rec->type = type;
+	rec->content = content;
+	rec->region.r_linep = lp;
+	rec->region.r_offset = offset;
+	rec->region.r_size = size;
+
+	LIST_INSERT_HEAD(&undo_list, rec, next);
+	
+	return TRUE;
+}
+
+int
 undo_add_boundary(void)
 {
 	struct undo_rec *rec;