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1 /*****************************************************************************/
2 /*                                                                           */
3 /*                                 toknode.h                                 */
4 /*                                                                           */
5 /*                Token list node for the ca65 macroassembler                */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 1998     Ullrich von Bassewitz                                        */
10 /*              Wacholderweg 14                                              */
11 /*              D-70597 Stuttgart                                            */
12 /* EMail:       uz@musoftware.de                                             */
13 /*                                                                           */
14 /*                                                                           */
15 /* This software is provided 'as-is', without any expressed or implied       */
16 /* warranty.  In no event will the authors be held liable for any damages    */
17 /* arising from the use of this software.                                    */
18 /*                                                                           */
19 /* Permission is granted to anyone to use this software for any purpose,     */
20 /* including commercial applications, and to alter it and redistribute it    */
21 /* freely, subject to the following restrictions:                            */
22 /*                                                                           */
23 /* 1. The origin of this software must not be misrepresented; you must not   */
24 /*    claim that you wrote the original software. If you use this software   */
25 /*    in a product, an acknowledgment in the product documentation would be  */
26 /*    appreciated but is not required.                                       */
27 /* 2. Altered source versions must be plainly marked as such, and must not   */
28 /*    be misrepresented as being the original software.                      */
29 /* 3. This notice may not be removed or altered from any source              */
30 /*    distribution.                                                          */
31 /*                                                                           */
32 /*****************************************************************************/
33
34
35
36 #ifndef TOKNODE_H
37 #define TOKNODE_H
38
39
40
41 /*****************************************************************************/
42 /*                                   Data                                    */
43 /*****************************************************************************/
44
45
46
47 /* Struct holding a token */
48 typedef struct TokNode_ TokNode;
49 struct TokNode_ {
50     TokNode*            Next;           /* For single linked list */
51     enum Token          Tok;            /* Token value */
52     int                 WS;             /* Whitespace before token? */
53     long                IVal;           /* Integer token attribute */
54     char                SVal [1];       /* String attribute, dyn. allocated */
55 };
56
57
58
59 /* Return codes for TokCmp - higher numeric code means better match */
60 enum TC {
61     tcDifferent,                        /* Different tokents */
62     tcSameToken,                        /* Same token, different attribute */
63     tcIdentical                         /* Identical (token + attribute) */
64 };
65
66
67
68 /*****************************************************************************/
69 /*                                   Code                                    */
70 /*****************************************************************************/
71
72
73
74 TokNode* NewTokNode (void);
75 /* Create and return a token node with the current token value */
76
77 void FreeTokNode (TokNode* T);
78 /* Free the given token node */
79
80 void TokSet (TokNode* T);
81 /* Set the scanner token from the given token node */
82
83 enum TC TokCmp (const TokNode* T);
84 /* Compare the token given as parameter against the current token */
85
86
87
88 /* End of toknode.h */
89
90 #endif
91
92
93
94