:- use_module(library(iostream)).
[semidet,multifile]open_hook(+Spec,
+Mode, -Stream, -Close, +Options0, -Options)| Close | is unified to a goal that must be
called to undo the side-effects of the action, e.g., typically the term close(Stream) |
| Options0 | are the options passed to open_any/5 |
| Options | are passed to the post processing filters that may be installed by open_any/5. |