/usr/include/slv2/query.h is in libslv2-dev 0.6.6+dfsg1-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | /* SLV2
* Copyright (C) 2008-2009 Dave Robillard <http://drobilla.net>
*
* This library 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 2 of the License, or (at your option)
* any later version.
*
* This library 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, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __SLV2_QUERY_H__
#define __SLV2_QUERY_H__
#ifdef __cplusplus
extern "C" {
#endif
/** \addtogroup slv2_data
* @{
*/
/** Query a plugin with an arbitrary SPARQL string.
*/
SLV2Results
slv2_plugin_query_sparql(SLV2Plugin plugin,
const char* sparql_str);
/** Free query results.
*/
void
slv2_results_free(SLV2Results results);
/** Return the number of matches in \a results.
* Note this should not be used to iterate over a result set (since it will
* iterate to the end of \a results and rewinding is impossible).
* Instead, use slv2_results_next and slv2_results_finished repeatedly.
*/
unsigned
slv2_results_size(SLV2Results results);
/** Return true iff the end of \a results has been reached.
*/
bool
slv2_results_finished(SLV2Results results);
/** Return a binding in \a results by index.
* Indices correspond to selected variables in the query in order of appearance.
* Returned value must be freed by caller with slv2_value_free.
* \return NULL if binding value can not be expressed as an SLV2Value.
*/
SLV2Value
slv2_results_get_binding_value(SLV2Results results, unsigned index);
/** Return a binding in \a results by name.
* \a name corresponds to the name of the SPARQL variable (without the '?').
* Returned value must be freed by caller with slv2_value_free.
* \return NULL if binding value can not be expressed as an SLV2Value.
*/
SLV2Value
slv2_results_get_binding_value_by_name(SLV2Results results, const char* name);
/** Return the name of a binding in \a results.
* Returned value is shared and must not be freed by caller.
* Indices correspond to selected variables in the query in order of appearance.
*/
const char*
slv2_results_get_binding_name(SLV2Results results, unsigned index);
/** Increment \a results to the next match.
*/
void
slv2_results_next(SLV2Results results);
/** @} */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __SLV2_QUERY_H__ */
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