From 6202be57112ed26410889081bb0ab87a779ae0bf Mon Sep 17 00:00:00 2001
From: Mike Taylor <mike@indexdata.com>
Date: Wed, 21 Dec 2005 16:41:36 +0000
Subject: [PATCH] Add ZOOM_query_cql2rpn()

---
 include/yaz/zoom.h |    5 ++++-
 src/zoom-c.c       |   29 +++++++++++++++++++++++++++--
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/include/yaz/zoom.h b/include/yaz/zoom.h
index 185e315..70f7231 100644
--- a/include/yaz/zoom.h
+++ b/include/yaz/zoom.h
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: zoom.h,v 1.32 2005-12-20 22:23:04 mike Exp $
+ * $Id: zoom.h,v 1.33 2005-12-21 16:43:13 mike Exp $
  */
 /**
  * \file zoom.h
@@ -196,6 +196,9 @@ ZOOM_query_destroy(ZOOM_query s);
 /* CQL */
 ZOOM_API(int)
 ZOOM_query_cql(ZOOM_query s, const char *str);
+/* CQL translated client-side into RPN: `conn' is optional for diagnostics */
+ZOOM_API(int)
+ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn);
 /* PQF */
 ZOOM_API(int)
 ZOOM_query_prefix(ZOOM_query s, const char *str);
diff --git a/src/zoom-c.c b/src/zoom-c.c
index e5fbd38..cd13a01 100644
--- a/src/zoom-c.c
+++ b/src/zoom-c.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: zoom-c.c,v 1.61 2005-12-21 08:35:36 mike Exp $
+ * $Id: zoom-c.c,v 1.62 2005-12-21 16:41:36 mike Exp $
  */
 /**
  * \file zoom-c.c
@@ -530,6 +530,31 @@ ZOOM_query_cql(ZOOM_query s, const char *str)
     return 0;
 }
 
+/*
+ * Translate the CQL string client-side into RPN which is passed to
+ * the server.  This is useful for server's that don't themselves
+ * support CQL, for which ZOOM_query_cql() is useless.  `conn' is used
+ * only as a place to stash diagnostics if compilation fails; if this
+ * information is not needed, a null pointer may be used.
+ */
+ZOOM_API(int)
+ZOOM_query_cql2rpn(ZOOM_query s, const char *str, ZOOM_connection conn)
+{
+    char *rpn;
+    int ret;
+
+    yaz_log(log_details, "%p ZOOM_query_cql2rpn str=%s conn=%p", s, str, conn);
+    if (conn == 0)
+        conn = ZOOM_connection_create(0);
+
+    if ((rpn = cql2pqf(conn, str)) == 0)
+        return -1;
+
+    ret = ZOOM_query_prefix(s, rpn);
+    xfree(rpn);
+    return ret;
+}
+
 ZOOM_API(int)
 ZOOM_query_sortby(ZOOM_query s, const char *criteria)
 {
@@ -1104,7 +1129,7 @@ static zoom_ret ZOOM_connection_send_init (ZOOM_connection c)
         ZOOM_options_get(c->options, "implementationName"),
         odr_prepend(c->odr_out, "ZOOM-C", ireq->implementationName));
 
-    version = odr_strdup(c->odr_out, "$Revision: 1.61 $");
+    version = odr_strdup(c->odr_out, "$Revision: 1.62 $");
     if (strlen(version) > 10)   /* check for unexpanded CVS strings */
         version[strlen(version)-2] = '\0';
     ireq->implementationVersion = odr_prepend(c->odr_out,
-- 
1.7.10.4