-int cql_transform_rpn2cql(cql_transform_t ct,
- void (*pr)(const char *buf, void *client_data),
- void *client_data,
- Z_RPNQuery *q);
+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
+ \param q RPN Query
+ \retval 0 success
+ \retval !=0 failure (error code)
+ */
+YAZ_EXPORT
+int cql_transform_rpn2cql_stream(cql_transform_t ct,
+ void (*pr)(const char *buf, void *client_data),
+ void *client_data,
+ Z_RPNQuery *q);
+
+
+/** \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
+ \retval 0 success
+ \retval !=0 failure (error code)
+ */
+YAZ_EXPORT
+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);