lib: define notmuch_query_create_with_syntax

Set the parsing syntax when the (notmuch) query object is
created. Initially the library always returns a trivial query that
matches all messages when using s-expression syntax.

It seems better to select the syntax at query creation time because
the lazy parsing is an implementation detail.

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/notmuch.h b/lib/notmuch.h
index ef11ed1b..2f1ee951 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -961,6 +961,16 @@ notmuch_query_t *
 notmuch_query_create (notmuch_database_t *database,
 		      const char *query_string);
 
+typedef enum {
+    NOTMUCH_QUERY_SYNTAX_XAPIAN,
+    NOTMUCH_QUERY_SYNTAX_SEXP
+} notmuch_query_syntax_t;
+
+notmuch_status_t
+notmuch_query_create_with_syntax (notmuch_database_t *database,
+				  const char *query_string,
+				  notmuch_query_syntax_t syntax,
+				  notmuch_query_t **output);
 /**
  * Sort values for notmuch_query_set_sort.
  */