Manipulate tokens both when indexing and searching.
When Comments have been added to a WP_Post-based Source, control whether the Comment Email is indexed.
When Comments have been added to a WP_Post-based Source, control whether the Comment Author is indexed.
By default SearchWP utilizes its background process when handling delta updates. This helps keep page load times to a minimum. If instead you would prefer that SearchWP applies delta updates inline with content edits you may use this hook.
This action is fired any time the Index is reset, just prior to the rebuilding job is triggered.