1 /*
2 * SysDB - src/frontend/parser.c
3 * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #include "sysdb.h"
30 #include "frontend/connection-private.h"
31 #include "frontend/parser.h"
32 #include "frontend/grammar.h"
34 #include "utils/llist.h"
36 #include <string.h>
38 /*
39 * public API
40 */
42 sdb_llist_t *
43 sdb_fe_parse(const char *query, int len)
44 {
45 sdb_fe_yyscan_t scanner;
46 sdb_fe_yyextra_t yyextra;
47 int yyres;
49 if (! query)
50 return NULL;
52 memset(&yyextra, 0, sizeof(yyextra));
53 yyextra.parsetree = sdb_llist_create();
55 scanner = sdb_fe_scanner_init(query, len, &yyextra);
56 if (! scanner) {
57 sdb_llist_destroy(yyextra.parsetree);
58 return NULL;
59 }
61 yyres = sdb_fe_yyparse(scanner);
62 sdb_fe_scanner_destroy(scanner);
64 if (yyres) {
65 sdb_llist_destroy(yyextra.parsetree);
66 return NULL;
67 }
68 return yyextra.parsetree;
69 } /* sdb_fe_parse */
71 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */