patch 8.2.0844: text properties crossing lines not handled correctly
Problem: Text properties crossing lines not handled correctly.
Solution: When saving for undo include an extra line when needed and do not
adjust properties when undoing. (Axel Forsman, closes #5875)
diff --git a/src/proto/memline.pro b/src/proto/memline.pro
index 1134170..de11868 100644
--- a/src/proto/memline.pro
+++ b/src/proto/memline.pro
@@ -22,10 +22,12 @@
char_u *ml_get_buf(buf_T *buf, linenr_T lnum, int will_change);
int ml_line_alloced(void);
int ml_append(linenr_T lnum, char_u *line, colnr_T len, int newfile);
+int ml_append_flags(linenr_T lnum, char_u *line, colnr_T len, int flags);
int ml_append_buf(buf_T *buf, linenr_T lnum, char_u *line, colnr_T len, int newfile);
int ml_replace(linenr_T lnum, char_u *line, int copy);
int ml_replace_len(linenr_T lnum, char_u *line_arg, colnr_T len_arg, int has_props, int copy);
int ml_delete(linenr_T lnum, int message);
+int ml_delete_flags(linenr_T lnum, int flags);
void ml_setmarked(linenr_T lnum);
linenr_T ml_firstmarked(void);
void ml_clearmarked(void);