1 /*===========================================================================
2  *
3  *                            PUBLIC DOMAIN NOTICE
4  *               National Center for Biotechnology Information
5  *
6  *  This software/database is a "United States Government Work" under the
7  *  terms of the United States Copyright Act.  It was written as part of
8  *  the author's official duties as a United States Government employee and
9  *  thus cannot be copyrighted.  This software/database is freely available
10  *  to the public for use. The National Library of Medicine and the U.S.
11  *  Government have not placed any restriction on its use or reproduction.
12  *
13  *  Although all reasonable efforts have been taken to ensure the accuracy
14  *  and reliability of the software and data, the NLM and the U.S.
15  *  Government do not and cannot warrant the performance or results that
16  *  may be obtained by using this software or data. The NLM and the U.S.
17  *  Government disclaim all warranties, express or implied, including
18  *  warranties of performance, merchantability or fitness for any particular
19  *  purpose.
20  *
21  *  Please cite the author in any work or product based on this material.
22  *
23  * ===========================================================================
24  *
25  */
26 
27 #ifndef _h_kfg_lex_
28 #define _h_kfg_lex_
29 
30 #include <string.h>
31 #include <stdbool.h>
32 
33 typedef struct KFGToken
34 {
35     const char* tokenText;
36     size_t tokenLength;
37     int tokenId;
38     size_t line_no;
39     size_t column_no;
40 } KFGToken;
41 
42 typedef struct KFGScanBlock
43 {
44     void* scanner;
45     void* buffer;
46     void* self;
47     const char* file;
48     KFGToken* lastToken; /* used for error reporting */
49     bool (*look_up_var)(void * self, struct KFGToken*);
50     void (*report_error)(struct KFGScanBlock* sb, const char* msg);
51 } KFGScanBlock;
52 
53 struct VNamelist;
54 typedef union
55 {
56 	KFGToken            pb;
57 	struct VNamelist*   namelist;
58 } KFGSymbol;
59 
60 extern bool KFGScan_yylex_init(KFGScanBlock* sb, const char *str); /* false = out of memory */
61 extern void KFGScan_yylex_destroy(KFGScanBlock* sb);
62 
63 extern void KFGScan_set_debug(bool on, KFGScanBlock* scannerContext);
64 
65 extern int KFGScan_yylex(KFGSymbol* pb, KFGScanBlock* scannerContext);
66 
67 #endif /* _h_kfg_lex_ */
68