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#ifndef __TXTIDX_H__
#define __TXTIDX_H__

/*
#define TXTIDX_DEBUG
*/

#include "postgres.h"

#include "access/gist.h"
#include "access/itup.h"
#include "utils/elog.h"
#include "utils/palloc.h"
#include "utils/builtins.h"
#include "storage/bufpage.h"

typedef struct {
	uint16	len;
	uint16	pos;
} WordEntry;

typedef struct {
	int4	len;
	int4	size;
	char	data[1];
} txtidx;

#define DATAHDRSIZE	(sizeof(int4)*2)
#define CALCDATASIZE(x, lenstr)	( x * sizeof(WordEntry) + DATAHDRSIZE + lenstr )
#define ARRPTR(x)   ( (WordEntry*) ( (char*)x + DATAHDRSIZE ) )
#define STRPTR(x)   ( (char*)x + DATAHDRSIZE + ( sizeof(WordEntry) * ((txtidx*)x)->size ) )
#define STRSIZE(x)  ( ((txtidx*)x)->len - DATAHDRSIZE - ( sizeof(WordEntry) * ((txtidx*)x)->size ) )

typedef struct {
	char *prsbuf;
	char *word;
	char *curpos;
	int4 len;
	int4 state;
	bool oprisdelim;
} TI_IN_STATE;

int4 gettoken_txtidx( TI_IN_STATE *state );

#endif