lib/parse-sexp: support phrase queries.

[notmuch] / doc / man7 / notmuch-sexp-queries.rst

diff --git a/doc/man7/notmuch-sexp-queries.rst b/doc/man7/notmuch-sexp-queries.rst
index 0304759e2418b68b09ed7491404ebb75c084c835..b763876d3672ddffc51aa8cc810ec67c85ea1503 100644 (file)
--- a/doc/man7/notmuch-sexp-queries.rst
+++ b/doc/man7/notmuch-sexp-queries.rst
@@ -36,15 +36,16 @@ An s-expression query is either an atom, the empty list, or a
 a *field*, *logical operation*, or *modifier*, and 0 or more
 subqueries.
 
-``*``
-``()``
-    The empty list matches all messages
+``*`` ``()``
+    Match all messages.
 
 *term*
-    Match all messages containing *term*, possibly after
-    stemming or phase splitting. For discussion of stemming in
-    notmuch see :any:`notmuch-search-terms(7)`. Stemming only applies
-    to unquoted terms (basic values) in s-expression queries.
+
+    Match all messages containing *term*, possibly after stemming or
+    phrase splitting. For discussion of stemming in notmuch see
+    :any:`notmuch-search-terms(7)`. Stemming only applies to unquoted
+    terms (basic values) in s-expression queries.  For information on
+    phrase splitting see :any:`fields`.
 
 ``(`` *field* |q1| |q2| ... |qn| ``)``
     Restrict the queries |q1| to |qn| to *field*, and combine with *and*
@@ -64,6 +65,66 @@ subqueries.
 FIELDS
 ``````
 
+*Fields* [#aka-pref]_
+correspond to attributes of mail messages. Some are inherent (and
+immutable) like ``subject``, while others ``tag`` and ``property`` are
+settable by the user.  Each concrete field in
+:any:`the table below <field-table>`
+is discussed further under "Search prefixes" in
+:any:`notmuch-search-terms(7)`. The row *user* refers to user defined
+fields, described in :any:`notmuch-config(1)`.
+
+Most fields are either *phrase fields* [#aka-prob]_ (which match
+sequences of words), or *term fields* [#aka-bool]_ (which match exact
+strings). *Phrase splitting* breaks the term (basic value or quoted
+string) into words, ignore punctuation. Phrase splitting is applied to
+terms in phrase (probabilistic) fields. Both phrase splitting and
+stemming apply only in phrase fields.
+
+.. _field-table:
+
+.. table:: Fields with supported modifiers
+
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |   field    |  combine  |   type    |  expand   | wildcard  |  regex   |
+  +============+===========+===========+===========+===========+==========+
+  |   *none*   |    and    |           |    no     |    yes    |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |   *user*   |    and    |  phrase   |    no     |    yes    |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  | attachment |    and    |  phrase   |    yes    |    yes    |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    body    |    and    |  phrase   |    no     |    no     |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    date    |           |   range   |    no     |    no     |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |   folder   |    or     |  phrase   |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    from    |    and    |  phrase   |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |     id     |    or     |   term    |    no     |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |     is     |    and    |   term    |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |  lastmod   |           |   range   |    no     |    no     |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    mid     |    or     |   term    |    no     |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |  mimetype  |    or     |  phrase   |    yes    |    yes    |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    path    |    or     |   term    |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |  property  |    and    |   term    |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |  subject   |    and    |  phrase   |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |    tag     |    and    |   term    |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |   thread   |    or     |   term    |    yes    |    yes    |   yes    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+  |     to     |    and    |  phrase   |    yes    |    yes    |    no    |
+  +------------+-----------+-----------+-----------+-----------+----------+
+
 .. _modifiers:
 
 MODIFIERS
@@ -86,6 +147,23 @@ EXAMPLES
 ``(not Bob Marley)``
     Match messages containing neither "Bob" nor "Marley", nor their stems,
 
+``"quick fox"`` ``quick-fox`` ``quick@fox``
+    Match the *phrase* "quick" followed by "fox" in phrase fields (or
+    outside a field). Match the literal string in a term field.
+
+``(subject quick "brown fox")``
+    Match messages whose subject contains "quick" (anywhere, stemmed) and
+    the phrase "brown fox".
+
+NOTES
+=====
+
+.. [#aka-pref] a.k.a. prefixes
+
+.. [#aka-prob] a.k.a. probabilistic prefixes
+
+.. [#aka-bool] a.k.a. boolean prefixes
+
 .. |q1| replace:: :math:`q_1`
 .. |q2| replace:: :math:`q_2`
 .. |qn| replace:: :math:`q_n`