X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=include%2Fyaz%2Frpn2cql.h;h=a7afd0b75b1c2b312d32d24326a7cdaba3cccd84;hp=1eadae112cd54ec21e601ac2d48ea94ff2756877;hb=6dc532f9c0278f7156e2940285247442681ddbf7;hpb=b977948f73d07c0bf4478565f9af3497ffe862e7

diff --git a/include/yaz/rpn2cql.h b/include/yaz/rpn2cql.h
index 1eadae1..a7afd0b 100644
--- a/include/yaz/rpn2cql.h
+++ b/include/yaz/rpn2cql.h
@@ -1,5 +1,5 @@
 /* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2008 Index Data.
+ * Copyright (C) Index Data.
  * All rights reserved.
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -37,7 +37,25 @@
 
 YAZ_BEGIN_CDECL
 
-/** \brief transforms PQF given a CQL tree
+/** \brief transforms RPN query to CQL output stream (re-entrant)
+    \param ct CQL transform handle
+    \param addinfo for additional error info
+    \param pr print function
+    \param client_data opaque data to be passed to print handler
+    \param q RPN Query
+    \retval 0 success
+    \retval !=0 failure (error code)
+ */
+YAZ_EXPORT
+int cql_transform_rpn2cql_stream_r(cql_transform_t ct,
+                                   WRBUF addinfo,
+                                   void (*pr)(const char *buf,
+                                              void *client_data),
+                                   void *client_data,
+                                   Z_RPNQuery *q);
+
+
+/** \brief transforms RPN query to CQL output stream (NOT re-entrant)
     \param ct CQL transform handle
     \param pr print function
     \param client_data opaque data to be passed to print handler
@@ -52,7 +70,7 @@ int cql_transform_rpn2cql_stream(cql_transform_t ct,
                                  Z_RPNQuery *q);
 
 
-/** \brief transforms PQF given a CQL tree
+/** \brief transforms RPN query to CQL WRBUF (NOT re-entrant)
     \param ct CQL transform handle
     \param w WRBUF handle for result
     \param q RPN Query
@@ -60,9 +78,18 @@ int cql_transform_rpn2cql_stream(cql_transform_t ct,
     \retval !=0 failure (error code)
  */
 YAZ_EXPORT
-int cql_transform_rpn2cql_wrbuf(cql_transform_t ct,
-                                WRBUF w,
-                                Z_RPNQuery *q);
+int cql_transform_rpn2cql_wrbuf(cql_transform_t ct, WRBUF w, Z_RPNQuery *q);
+
+/** \brief find a pattern that has a subset of attributes
+    \param ct CQL transform handle
+    \param category pattern category
+    \param attributes RPN attributes
+    \returns pattern value or NULL if not found
+ */
+YAZ_EXPORT
+const char *cql_lookup_reverse(cql_transform_t ct,
+                               const char *category,
+                               Z_AttributeList *attributes);
 
 YAZ_END_CDECL
 
@@ -71,6 +98,7 @@ YAZ_END_CDECL
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab