1 /*
2  * Copyright 2011 Tresys Technology, LLC. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  *    1. Redistributions of source code must retain the above copyright notice,
8  *       this list of conditions and the following disclaimer.
9  *
10  *    2. Redistributions in binary form must reproduce the above copyright notice,
11  *       this list of conditions and the following disclaimer in the documentation
12  *       and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY TRESYS TECHNOLOGY, LLC ``AS IS'' AND ANY EXPRESS
15  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
17  * EVENT SHALL TRESYS TECHNOLOGY, LLC OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
18  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
21  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
22  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  * The views and conclusions contained in the software and documentation are those
26  * of the authors and should not be interpreted as representing official policies,
27  * either expressed or implied, of Tresys Technology, LLC.
28  */
29 
30 #ifndef CIL_LEXER_H_
31 #define CIL_LEXER_H_
32 
33 #include <stdint.h>
34 
35 #define OPAREN 1
36 #define CPAREN 2
37 #define SYMBOL 3
38 #define QSTRING 4
39 #define COMMENT 5
40 #define END_OF_FILE 6
41 #define UNKNOWN 7
42 
43 struct token {
44 	uint32_t type;
45 	char * value;
46 	uint32_t line;
47 };
48 
49 int cil_lexer_setup(char *buffer, uint32_t size);
50 void cil_lexer_destroy(void);
51 int cil_lexer_next(struct token *tok);
52 
53 #endif /* CIL_LEXER_H_ */
54