`yank-excluded-properties'. Otherwise just like (insert STRING).
If STRING has a non-nil `yank-handler' property on the first character,
-the normal insert behaviour is modified in various ways. The value of
+the normal insert behavior is modified in various ways. The value of
the yank-handler property must be a list with one to five elements
with the following format: (FUNCTION PARAM NOEXCLUDE UNDO).
When FUNCTION is present and non-nil, it is called instead of `insert'