X-Git-Url: https://git.cworth.org/git?p=notmuch;a=blobdiff_plain;f=doc%2Fman7%2Fnotmuch-sexp-queries.rst;h=7eaffe569f0ea42a8f8c8a44c9489547f1e27322;hp=f32bab9c730ead23409d46c615a1ea6400dc2643;hb=1870b3ae4bae5e68296e63acc81965eea04a1a7a;hpb=5cb452c325e1f69e43dca610f48b9396cba9c039

diff --git a/doc/man7/notmuch-sexp-queries.rst b/doc/man7/notmuch-sexp-queries.rst
index f32bab9c..7eaffe56 100644
--- a/doc/man7/notmuch-sexp-queries.rst
+++ b/doc/man7/notmuch-sexp-queries.rst
@@ -144,6 +144,11 @@ MODIFIERS
 *Modifiers* refer to any prefixes (first elements of compound queries)
 that are neither operators nor fields.
 
+``(regex`` *atom* ``)`` ``(rx`` *atom* ``)``
+    Interpret *atom* as a POSIX.2 regular expression (see
+    :manpage:`regex(7)`). This applies in term fields and a subset [#not-phrase]_ of
+    phrase fields (see :any:`field-table`).
+
 ``(starts-with`` *subword* ``)``
     Matches any term starting with *subword*.  This applies in either
     phrase or term :any:`fields <fields>`, or outside of fields [#not-body]_. Note that
@@ -205,6 +210,9 @@ NOTES
 
 .. [#aka-bool] a.k.a. boolean prefixes
 
+.. [#not-phrase] Due to the implemention of phrase fields in Xapian,
+                 regex queries could only match individual words.
+
 .. [#not-body] Due the the way ``body`` is implemented in notmuch,
                this modifier is not supported in the ``body`` field.