shithub: rgbds

ref: c0a9cf79a32d93079b471ad61b767b538d1213c1
dir: /src/asm/include/lexer.h/

#ifndef	LEXER_H
#define	LEXER_H

#include	"types.h"
#include	<stdio.h>

#define	LEXHASHSIZE	512

struct	sLexInitString
{
	char	*tzName;
	ULONG	nToken;
};

struct	sLexFloat
{
	ULONG 	(*Callback)( char *s, ULONG size );
	ULONG	nToken;
};

struct	yy_buffer_state
{
	char	*pBufferStart;
	char	*pBuffer;
	ULONG	nBufferSize;
	ULONG	oAtLineStart;
};

enum	eLexerState
{
	LEX_STATE_NORMAL,
	LEX_STATE_MACROARGS
};

#define	INITIAL			0
#define	macroarg		3

typedef	struct	yy_buffer_state	*YY_BUFFER_STATE;

extern	void	yy_set_state( enum eLexerState i );
extern	YY_BUFFER_STATE	yy_create_buffer( FILE *f );
extern	YY_BUFFER_STATE	yy_scan_bytes( char *mem, ULONG size );
extern	void	yy_delete_buffer( YY_BUFFER_STATE );
extern	void	yy_switch_to_buffer( YY_BUFFER_STATE );
extern	ULONG	lex_FloatAlloc( struct sLexFloat *tok );
extern	void	lex_FloatAddRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_FloatDeleteRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_FloatAddFirstRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_FloatDeleteFirstRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_FloatAddSecondRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_FloatDeleteSecondRange( ULONG id, UWORD start, UWORD end );
extern	void	lex_Init( void );
extern	void	lex_AddStrings( struct sLexInitString *lex );
extern	void	lex_SetBuffer( char *buffer, ULONG len );
extern	ULONG	yylex( void );
extern	void	yyunput( char c );
extern	void	yyunputstr( char *s );
extern	void	yyskipbytes( ULONG count );
extern	void	yyunputbytes( ULONG count );

extern	YY_BUFFER_STATE		pCurrentBuffer;

#ifdef	__GNUC__
extern	void	strupr( char *s );
extern	void	strlwr( char *s );
#endif

#endif