lib: add field processor for lastmod: prefix

[notmuch] / lib / lastmod-fp.h

diff --git a/lib/lastmod-fp.h b/lib/lastmod-fp.h
new file mode 100644 (file)
index 0000000..8168fe7
--- /dev/null
+++ b/lib/lastmod-fp.h
@@ -0,0 +1,41 @@
+/* lastmod-fp.h - database revision query glue
+ *
+ * This file is part of notmuch.
+ *
+ * Copyright © 2022 David Bremner
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see https://www.gnu.org/licenses/ .
+ *
+ * Author: David Bremner <david@tethera.net>
+ */
+
+#ifndef NOTMUCH_LASTMOD_FP_H
+#define NOTMUCH_LASTMOD_FP_H
+
+#include <xapian.h>
+
+class LastModRangeProcessor : public Xapian::RangeProcessor {
+protected:
+    notmuch_database_t *notmuch;
+
+public:
+    LastModRangeProcessor (notmuch_database_t *notmuch_, const std::string prefix_)
+       :  Xapian::RangeProcessor (NOTMUCH_VALUE_LAST_MOD, prefix_, 0), notmuch (notmuch_)
+    {
+    }
+
+    Xapian::Query operator() (const std::string &begin, const std::string &end);
+};
+
+#endif /* NOTMUCH_LASTMOD_FP_H */