mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-12-21 08:29:39 +08:00
324300bc7c
regression=# select to_tsquery( '\'fotballklubber\'');
to_tsquery
------------------------------------------------
'fotball' & 'klubb' | 'fot' & 'ball' & 'klubb'
(1 row)
So, changed interface to dictionaries, lexize method of dictionary shoud return
pointer to aray of TSLexeme structs instead of char**. Last element should
have TSLexeme->lexeme == NULL.
typedef struct {
/* number of variant of split word , for example
Word 'fotballklubber' (norwegian) has two varian to split:
( fotball, klubb ) and ( fot, ball, klubb ). So, dictionary
should return:
nvariant lexeme
1 fotball
1 klubb
2 fot
2 ball
2 klubb
*/
uint16 nvariant;
/* currently unused */
uint16 flags;
/* C-string */
char *lexeme;
} TSLexeme;
65 lines
1.1 KiB
C
65 lines
1.1 KiB
C
#ifndef __DICT_H__
|
|
#define __DICT_H__
|
|
#include "postgres.h"
|
|
#include "fmgr.h"
|
|
|
|
typedef struct
|
|
{
|
|
int len;
|
|
char **stop;
|
|
char *(*wordop) (char *);
|
|
} StopList;
|
|
|
|
void sortstoplist(StopList * s);
|
|
void freestoplist(StopList * s);
|
|
void readstoplist(text *in, StopList * s);
|
|
bool searchstoplist(StopList * s, char *key);
|
|
char *lowerstr(char *str);
|
|
|
|
typedef struct
|
|
{
|
|
Oid dict_id;
|
|
FmgrInfo lexize_info;
|
|
void *dictionary;
|
|
} DictInfo;
|
|
|
|
void init_dict(Oid id, DictInfo * dict);
|
|
DictInfo *finddict(Oid id);
|
|
Oid name2id_dict(text *name);
|
|
void reset_dict(void);
|
|
|
|
|
|
/* simple parser of cfg string */
|
|
typedef struct
|
|
{
|
|
char *key;
|
|
char *value;
|
|
} Map;
|
|
|
|
void parse_cfgdict(text *in, Map ** m);
|
|
|
|
/* return struct for any lexize function */
|
|
typedef struct {
|
|
/* number of variant of split word , for example
|
|
Word 'fotballklubber' (norwegian) has two varian to split:
|
|
( fotball, klubb ) and ( fot, ball, klubb ). So, dictionary
|
|
should return:
|
|
nvariant lexeme
|
|
1 fotball
|
|
1 klubb
|
|
2 fot
|
|
2 ball
|
|
2 klubb
|
|
|
|
*/
|
|
uint16 nvariant;
|
|
|
|
/* currently unused */
|
|
uint16 flags;
|
|
|
|
/* C-string */
|
|
char *lexeme;
|
|
} TSLexeme;
|
|
|
|
#endif
|