-<h2>XAPIAN FIELD PROCESSORS</h2>
-<pre>
- Certain optional features of the notmuch query processor rely on the
- presence of the Xapian field processor API. You can determine if your
- notmuch was built against a sufficiently recent version of Xapian by
- running
-
- % notmuch config get built_with.field_processor
-
- Currently the following features require field processor support:
-
- · non-range date queries, e.g. "date:today"
-
- · named queries e.g. "query:my_special_query"
-
- · regular expression searches, e.g. "subject:/^\[SPAM\]/"
-
- · thread subqueries, e.g. "thread:{from:bob}"
-</pre>
-