greenplumn regis 源码
greenplumn regis 代码
文件路径：/src/include/tsearch/dicts/regis.h
/*-------------------------------------------------------------------------
*
* regis.h
*
* Declarations for fast regex subset, used by ISpell
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
*
* src/include/tsearch/dicts/regis.h
*
*-------------------------------------------------------------------------
*/
#ifndef __REGIS_H__
#define __REGIS_H__
typedef struct RegisNode
{
uint32
type:2,
len:16,
unused:14;
struct RegisNode *next;
unsigned char data[FLEXIBLE_ARRAY_MEMBER];
} RegisNode;
#define RNHDRSZ (offsetof(RegisNode,data))
#define RSF_ONEOF 1
#define RSF_NONEOF 2
typedef struct Regis
{
RegisNode *node;
uint32
issuffix:1,
nchar:16,
unused:15;
} Regis;
bool RS_isRegis(const char *str);
void RS_compile(Regis *r, bool issuffix, const char *str);
void RS_free(Regis *r);
/*returns true if matches */
bool RS_execute(Regis *r, char *str);
#endif
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