For each instance of the pattern found, a menu of options such as the
following may be presented.
- Confirm.
- Ignore.
- Key-Pattern List. Add the current
<key, pattern> pair to the list
associated with the current document.
- Index Level. Prompt the user for an index prefix.
The
level operator (`!'), if not given at the end
of the specified string, should be inserted automatically between
the prefix and the current key.
- Actual Field. Prompt the user for the actual field
corresponding to the current (sort) key. The
actual
operator (`@') should be automatically inserted in between.
- Page Encapsulator. Prompt the user for the page
number encapsulator. The
encap operator (`|'),
if not given, should be attached in front of the specified string.
Encapsulators corresponding to popular fonts such as bold, italic,
and slanted, or to cross references like see and
see also can be implemented as a submenu.