postgresql/contrib/tsearch/txtidx.h

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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