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-rw-r--r--src/nvim/fold.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/src/nvim/fold.c b/src/nvim/fold.c
index ad0bfe29e2..5ce953e626 100644
--- a/src/nvim/fold.c
+++ b/src/nvim/fold.c
@@ -1645,19 +1645,22 @@ deleteFoldMarkers(
foldendmarkerlen);
}
-/* foldDelMarker() {{{2 */
-/*
- * Delete marker "marker[markerlen]" at the end of line "lnum".
- * Delete 'commentstring' if it matches.
- * If the marker is not found, there is no error message. Could a missing
- * close-marker.
- */
+// foldDelMarker() {{{2
+//
+// Delete marker "marker[markerlen]" at the end of line "lnum".
+// Delete 'commentstring' if it matches.
+// If the marker is not found, there is no error message. Could be a missing
+// close-marker.
static void foldDelMarker(linenr_T lnum, char_u *marker, size_t markerlen)
{
char_u *newline;
char_u *cms = curbuf->b_p_cms;
char_u *cms2;
+ // end marker may be missing and fold extends below the last line
+ if (lnum > curbuf->b_ml.ml_line_count) {
+ return;
+ }
char_u *line = ml_get(lnum);
for (char_u *p = line; *p != NUL; ++p) {
if (STRNCMP(p, marker, markerlen) != 0) {
@@ -2426,15 +2429,18 @@ static linenr_T foldUpdateIEMSRecurse(
* lvl >= level: fold continues below "bot"
*/
- /* Current fold at least extends until lnum. */
+ // Current fold at least extends until lnum.
if (fp->fd_len < flp->lnum - fp->fd_top) {
fp->fd_len = flp->lnum - fp->fd_top;
fp->fd_small = kNone;
fold_changed = true;
+ } else if (fp->fd_top + fp->fd_len > linecount) {
+ // running into the end of the buffer (deleted last line)
+ fp->fd_len = linecount - fp->fd_top + 1;
}
- /* Delete contained folds from the end of the last one found until where
- * we stopped looking. */
+ // Delete contained folds from the end of the last one found until where
+ // we stopped looking.
foldRemove(&fp->fd_nested, startlnum2 - fp->fd_top,
flp->lnum - 1 - fp->fd_top);