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/structs.h b/src/structs.h
index d6f9030..eb4f60e 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -742,6 +742,15 @@
#endif
} memline_T;
+// Values for the flags argument of ml_delete_flags().
+#define ML_DEL_MESSAGE 1 // may give a "No lines in buffer" message
+#define ML_DEL_UNDO 2 // called from undo, do not update textprops
+
+// Values for the flags argument of ml_append_int().
+#define ML_APPEND_NEW 1 // starting to edit a new file
+#define ML_APPEND_MARK 2 // mark the new line
+#define ML_APPEND_UNDO 4 // called from undo
+
/*
* Structure defining text properties. These stick with the text.