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/*
* Copyright (C) 2010, Nokia <ivan.frade@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "tracker-utils.h"
#include <libtracker-sparql/core/tracker-uuid.h>
/**
* tracker_sparql_escape_string:
* @literal: a string to escape
*
* Escapes @literal so it is suitable for insertion in
* SPARQL queries as string literals.
*
* Manual construction of query strings based user input is best
* avoided at all cost, use of #TrackerSparqlStatement is recommended
* instead.
*
* Returns: (transfer full): the escaped string
**/
gchar *
tracker_sparql_escape_string (const gchar* literal)
{
GString *str;
const gchar *p;
str = g_string_new (NULL);
p = literal;
while (*p != '\0') {
size_t len;
len = strcspn (p, "\t\n\r\b\f\'\"\\");
g_string_append_len (str, p, len);
p += len;
switch (*p) {
case '\t':
g_string_append (str, "\\t");
break;
case '\n':
g_string_append (str, "\\n");
break;
case '\r':
g_string_append (str, "\\r");
break;
case '\b':
g_string_append (str, "\\b");
break;
case '\f':
g_string_append (str, "\\f");
break;
case '"':
g_string_append (str, "\\\"");
break;
case '\'':
g_string_append (str, "\\'");
break;
case '\\':
g_string_append (str, "\\\\");
break;
default:
continue;
}
p++;
}
return g_string_free (str, FALSE);
}
/**
* tracker_sparql_get_uuid_urn:
*
* Creates a fresh UUID-based URN.
*
* Returns: (transfer full): A newly generated UUID URN.
**/
gchar *
tracker_sparql_get_uuid_urn (void)
{
return tracker_generate_uuid ("urn:uuid");
}
/**
* tracker_sparql_get_ontology_nepomuk:
*
* Returns a path to the built-in Nepomuk ontologies.
*
* Returns: (transfer full): a #GFile instance.
*/
GFile *
tracker_sparql_get_ontology_nepomuk (void)
{
return g_file_new_for_path (SHAREDIR "/tracker3/ontologies/nepomuk");
}
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