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/* Copyright (c) 2000-2005, 2007 MySQL AB, 2009 Sun Microsystems, Inc.
Use is subject to license terms.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
/* Written by Sergei A. Golubchik, who has a shared copyright to this code */
/* some definitions for full-text indices */
/* #include "myisam.h" */
#ifndef _ft_global_h
#define _ft_global_h
#ifdef __cplusplus
extern "C" {
#endif
#include <my_compare.h>
#define HA_FT_MAXBYTELEN 254
#define HA_FT_MAXCHARLEN (HA_FT_MAXBYTELEN/3)
#define DEFAULT_FTB_SYNTAX "+ -><()~*:\"\"&|"
typedef struct st_ft_info FT_INFO;
struct _ft_vft
{
int (*read_next)(FT_INFO *, char *);
float (*find_relevance)(FT_INFO *, uchar *, uint);
void (*close_search)(FT_INFO *);
float (*get_relevance)(FT_INFO *);
void (*reinit_search)(FT_INFO *);
};
typedef struct st_ft_info_ext FT_INFO_EXT;
struct _ft_vft_ext
{
uint (*get_version)(); // Extended API version
ulonglong (*get_flags)();
ulonglong (*get_docid)(FT_INFO_EXT *);
ulonglong (*count_matches)(FT_INFO_EXT *);
};
/* Flags for extended FT API */
#define FTS_ORDERED_RESULT (1LL << 1)
#define FTS_DOCID_IN_RESULT (1LL << 2)
#define FTS_DOC_ID_COL_NAME "FTS_DOC_ID"
#ifndef FT_CORE
struct st_ft_info
{
struct _ft_vft *please; /* INTERCAL style :-) */
};
struct st_ft_info_ext
{
struct _ft_vft *please; /* INTERCAL style :-) */
struct _ft_vft_ext *could_you;
};
#endif
extern const char *ft_stopword_file;
extern const char *ft_precompiled_stopwords[];
extern ulong ft_min_word_len;
extern ulong ft_max_word_len;
extern ulong ft_query_expansion_limit;
extern const char *ft_boolean_syntax;
extern struct st_mysql_ftparser ft_default_parser;
int ft_init_stopwords(void);
void ft_free_stopwords(void);
#define FT_NL 0
#define FT_BOOL 1
#define FT_SORTED 2
#define FT_EXPAND 4 /* query expansion */
FT_INFO *ft_init_search(uint,void *, uint, uchar *, size_t,
CHARSET_INFO *, uchar *);
my_bool ft_boolean_check_syntax_string(const uchar *, size_t length,
CHARSET_INFO *cs);
/* Internal symbols for fulltext between maria and MyISAM */
#define HA_FT_WTYPE HA_KEYTYPE_FLOAT
#define HA_FT_WLEN 4
#define FT_SEGS 2
#define ft_sintXkorr(A) mi_sint4korr(A)
#define ft_intXstore(T,A) mi_int4store(T,A)
extern const HA_KEYSEG ft_keysegs[FT_SEGS];
typedef union {int32 i; float f;} FT_WEIGTH;
#ifdef __cplusplus
}
#endif
#endif
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