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 /*****************************************************************************/
41 /*****************************************************************************/
43 /*****************************************************************************/
47 /* Struct holding a token */
48 typedef struct TokNode 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 */
57 /* Struct holding a token list */
58 typedef struct TokList TokList;
60 TokList* Next; /* Single linked list (for replay) */
61 TokNode* Root; /* First node in list */
62 TokNode* Last; /* Last node in list or replay */
63 unsigned Repeat; /* Repeat counter (used for replay) */
64 unsigned Count; /* Token count */
69 /* Return codes for TokCmp - higher numeric code means better match */
71 tcDifferent, /* Different tokents */
72 tcSameToken, /* Same token, different attribute */
73 tcIdentical /* Identical (token + attribute) */
78 /*****************************************************************************/
80 /*****************************************************************************/
84 TokNode* NewTokNode (void);
85 /* Create and return a token node with the current token value */
87 void FreeTokNode (TokNode* T);
88 /* Free the given token node */
90 void TokSet (TokNode* T);
91 /* Set the scanner token from the given token node */
93 enum TC TokCmp (const TokNode* T);
94 /* Compare the token given as parameter against the current token */
96 void InitTokList (TokList* T);
97 /* Initialize a token list structure for later use */
99 TokList* NewTokList (void);
100 /* Create a new, empty token list */
102 void FreeTokList (TokList* T);
103 /* Delete the token list including all token nodes */
105 void AddCurTok (TokList* T);
106 /* Add the current token to the token list */
110 /* End of toklist.h */