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.blank and .tcount. git-svn-id: svn://svn.cc65.org/cc65/trunk@3014 b7a2c559-68d2-44c3-8de9-860c34a00d81
136 lines
5.2 KiB
C
136 lines
5.2 KiB
C
/*****************************************************************************/
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/* */
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/* toklist.h */
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/* */
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/* Token list for the ca65 macroassembler */
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/* */
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/* */
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/* */
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/* (C) 2000-2004 Ullrich von Bassewitz */
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/* Römerstraße 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef TOKLIST_H
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#define TOKLIST_H
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#include "scanner.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Struct holding a token */
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typedef struct TokNode TokNode;
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struct TokNode {
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TokNode* Next; /* For single linked list */
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enum Token Tok; /* Token value */
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int WS; /* Whitespace before token? */
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long IVal; /* Integer token attribute */
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char SVal [1]; /* String attribute, dyn. allocated */
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};
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/* Struct holding a token list */
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typedef struct TokList TokList;
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struct TokList {
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TokList* Next; /* Single linked list (for replay) */
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TokNode* Root; /* First node in list */
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TokNode* Last; /* Last node in list or replay */
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unsigned RepCount; /* Repeat counter (used for replay) */
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unsigned RepMax; /* Maximum repeat count for replay */
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unsigned Count; /* Token count */
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void (*Check)(TokList*); /* Token check function */
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void* Data; /* Additional data for check */
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};
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/* Return codes for TokCmp - higher numeric code means better match */
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enum TC {
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tcDifferent, /* Different tokents */
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tcSameToken, /* Same token, different attribute */
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tcIdentical /* Identical (token + attribute) */
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};
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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TokNode* NewTokNode (void);
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/* Create and return a token node with the current token value */
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void FreeTokNode (TokNode* T);
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/* Free the given token node */
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void TokSet (TokNode* T);
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/* Set the scanner token from the given token node */
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enum TC TokCmp (const TokNode* T);
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/* Compare the token given as parameter against the current token */
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void InitTokList (TokList* T);
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/* Initialize a token list structure for later use */
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TokList* NewTokList (void);
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/* Create a new, empty token list */
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void FreeTokList (TokList* T);
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/* Delete the token list including all token nodes */
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enum Token GetTokListTerm (enum Token Term);
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/* Determine if the following token list is enclosed in curly braces. This is
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* the case if the next token is the opening brace. If so, skip it and return
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* a closing brace, otherwise return Term.
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*/
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void AddCurTok (TokList* T);
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/* Add the current token to the token list */
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void PushTokList (TokList* List, const char* Desc);
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/* Push a token list to be used as input for InputFromStack. This includes
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* several initializations needed in the token list structure, so don't use
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* PushInput directly.
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*/
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/* End of toklist.h */
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#endif
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