1 /*****************************************************************************/
5 /* Token list for the ca65 macroassembler */
9 /* (C) 2000 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
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. */
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: */
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 */
32 /*****************************************************************************/
45 /*****************************************************************************/
47 /*****************************************************************************/
51 /* Struct holding a token */
52 typedef struct TokNode TokNode;
54 TokNode* Next; /* For single linked list */
55 enum Token Tok; /* Token value */
56 int WS; /* Whitespace before token? */
57 long IVal; /* Integer token attribute */
58 char SVal [1]; /* String attribute, dyn. allocated */
61 /* Struct holding a token list */
62 typedef struct TokList TokList;
64 TokList* Next; /* Single linked list (for replay) */
65 TokNode* Root; /* First node in list */
66 TokNode* Last; /* Last node in list or replay */
67 unsigned RepCount; /* Repeat counter (used for replay) */
68 unsigned RepMax; /* Maximum repeat count for replay */
69 unsigned Count; /* Token count */
70 void (*Check)(TokList*); /* Token check function */
71 void* Data; /* Additional data for check */
76 /* Return codes for TokCmp - higher numeric code means better match */
78 tcDifferent, /* Different tokents */
79 tcSameToken, /* Same token, different attribute */
80 tcIdentical /* Identical (token + attribute) */
85 /*****************************************************************************/
87 /*****************************************************************************/
91 TokNode* NewTokNode (void);
92 /* Create and return a token node with the current token value */
94 void FreeTokNode (TokNode* T);
95 /* Free the given token node */
97 void TokSet (TokNode* T);
98 /* Set the scanner token from the given token node */
100 enum TC TokCmp (const TokNode* T);
101 /* Compare the token given as parameter against the current token */
103 void InitTokList (TokList* T);
104 /* Initialize a token list structure for later use */
106 TokList* NewTokList (void);
107 /* Create a new, empty token list */
109 void FreeTokList (TokList* T);
110 /* Delete the token list including all token nodes */
112 void AddCurTok (TokList* T);
113 /* Add the current token to the token list */
115 void PushTokList (TokList* List, const char* Desc);
116 /* Push a token list to be used as input for InputFromStack. This includes
117 * several initializations needed in the token list structure, so don't use
118 * PushInput directly.
123 /* End of toklist.h */