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111 lines
4.5 KiB
C
111 lines
4.5 KiB
C
/*****************************************************************************/
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/* */
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/* scanner.h */
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/* */
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/* The scanner for the ca65 macroassembler */
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/* */
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/* */
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/* */
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/* (C) 1998-2011, Ullrich von Bassewitz */
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/* Roemerstrasse 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 SCANNER_H
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#define SCANNER_H
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/* ca65 */
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#include "token.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Scanner variables */
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extern Token CurTok; /* Current input token incl. attributes */
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extern int ForcedEnd; /* Force end of assembly */
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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int IsIdChar (int C);
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/* Return true if the character is a valid character for an identifier */
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int IsIdStart (int C);
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/* Return true if the character may start an identifier */
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int NewInputFile (const char* Name);
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/* Open a new input file. Returns true if the file could be successfully opened
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** and false otherwise.
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*/
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void NewInputData (char* Text, int Malloced);
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/* Add a chunk of input data to the input stream */
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void LocaseSVal (void);
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/* Make SVal lower case */
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void UpcaseSVal (void);
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/* Make SVal upper case */
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void NextRawTok (void);
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/* Read the next raw token from the input stream */
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int GetSubKey (const char** Keys, unsigned Count);
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/* Search for a subkey in a table of keywords. The current token must be an
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** identifier and all keys must be in upper case. The identifier will be
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** uppercased in the process. The function returns the index of the keyword,
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** or -1 if the keyword was not found.
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*/
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unsigned char ParseAddrSize (void);
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/* Check if the next token is a keyword that denotes an address size specifier.
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** If so, return the corresponding address size constant, otherwise output an
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** error message and return ADDR_SIZE_DEFAULT.
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*/
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void InitScanner (const char* InFile);
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/* Initialize the scanner, open the given input file */
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void DoneScanner (void);
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/* Release scanner resources */
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/* End of scanner.h */
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#endif
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