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/* This file is part of the YAZ toolkit.
* 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Index Data nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file sortspec.h
* \brief Header for SortSpec parsing.
*/
#ifndef SORTSPEC_H
#define SORTSPEC_H
#include <yaz/yconfig.h>
#include <yaz/wrbuf.h>
#include <yaz/z-core.h>
YAZ_BEGIN_CDECL
/** \brief parse sort spec string
\param odr memory for result
\param arg sort spec string
\returns Z39.50 SortKeySpecList or NULL on error
The sort spec list is of the form:
(field flags)+
where field is either a string or one or more attribute pairs
key=value (there must be no blanks in either field of flags).
flags is a character list:
dD> : descending
aA< : ascending (default)
iI : ignoreccase / case-insensitive (default)
sS : respectcase / case-sensitive
! : abort of key is omitted in result
=value : missing value
Examples:
title a
1=4 ia 1=1003 sd
*/
YAZ_EXPORT Z_SortKeySpecList *yaz_sort_spec(ODR odr, const char *arg);
/* \brief converts SortKeySpecList to CQL sortby string
\param sksl SortKeySpecList
\param w resulting CQL SORTBY string (of string to be appended)
\retval 0 successful
\retval -1 failure
*/
YAZ_EXPORT int yaz_sort_spec_to_cql(Z_SortKeySpecList *sksl, WRBUF w);
/* \brief adds PQF type-7 sorting to existing PQF from SortKeySpecList
\param sksl SortKeySpecList
\param w original PQF (without the Type-7)
\retval 0 successful
\retval -1 failure
If successful, the pqf WRBUF holds the new PQF including the Type-7
part.
*/
YAZ_EXPORT int yaz_sort_spec_to_type7(Z_SortKeySpecList *sksl, WRBUF pqf);
/* \brief converts Z39.50 SortKeySpecList to SRU 1.1 sort key
\param sksl SortKeySpecList
\param w resulting sortkey will be appended to this
\retval 0 successful
\retval -1 failure
*/
YAZ_EXPORT int yaz_sort_spec_to_srw_sortkeys(Z_SortKeySpecList *sksl, WRBUF w);
/* \brief converts SRU/SRW 1.1 sortkeys to Z39.50 sortspec (WRBUF)
\param srw_sortkeys SRU sortkeys string
\param w resulting Z39.50 sortspec, WRBUF string
\retval 0 successful
\retval -1 failure
*/
YAZ_EXPORT int yaz_srw_sortkeys_to_sort_spec(const char *srw_sortkeys, WRBUF w);
/* \brief converts Z39.50 SortKeySpecList to Solr sort key
\param sksl SortKeySpecList
\param w resulting sortkey will be appended to this
\retval 0 successful
\retval -1 failure
*/
YAZ_EXPORT int yaz_sort_spec_to_solr_sortkeys(Z_SortKeySpecList *sksl, WRBUF w);
/* \brief converts Solr sortkeys to Z39.50 sortspec (WRBUF)
\param srw_sortkeys Solr sortkeys string
\param w resulting Z39.50 sortspec, WRBUF string
\retval 0 successful
\retval -1 failure
*/
YAZ_EXPORT int yaz_solr_sortkeys_to_sort_spec(const char *srw_sortkeys, WRBUF w);
YAZ_END_CDECL
#endif
/*
* Local variables:
* c-basic-offset: 4
* c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/