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-rw-r--r--src/nvim/undo.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/src/nvim/undo.c b/src/nvim/undo.c
index 937e86b161..529eef19a3 100644
--- a/src/nvim/undo.c
+++ b/src/nvim/undo.c
@@ -702,7 +702,7 @@ char *u_get_undo_file_name(const char *const buf_ffname, const bool reading)
const size_t ffname_len = strlen(ffname);
undo_file_name = xmalloc(ffname_len + 6);
memmove(undo_file_name, ffname, ffname_len + 1);
- char *const tail = (char *)path_tail((char_u *)undo_file_name);
+ char *const tail = path_tail(undo_file_name);
const size_t tail_len = strlen(tail);
memmove(tail + 1, tail, tail_len + 1);
*tail = '.';
@@ -2418,10 +2418,11 @@ static void u_undoredo(int undo, bool do_buf_event)
changed_lines(top + 1, 0, bot, newsize - oldsize, do_buf_event);
- // set '[ and '] mark
+ // Set the '[ mark.
if (top + 1 < curbuf->b_op_start.lnum) {
curbuf->b_op_start.lnum = top + 1;
}
+ // Set the '] mark.
if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum) {
curbuf->b_op_end.lnum = top + 1;
} else if (top + newsize > curbuf->b_op_end.lnum) {
@@ -2442,6 +2443,14 @@ static void u_undoredo(int undo, bool do_buf_event)
newlist = uep;
}
+ // Ensure the '[ and '] marks are within bounds.
+ if (curbuf->b_op_start.lnum > curbuf->b_ml.ml_line_count) {
+ curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
+ }
+ if (curbuf->b_op_end.lnum > curbuf->b_ml.ml_line_count) {
+ curbuf->b_op_end.lnum = curbuf->b_ml.ml_line_count;
+ }
+
// Adjust Extmarks
ExtmarkUndoObject undo_info;
if (undo) {