dep/mysqllite/include/ft_global.h

   1 /* Copyright (C) 2000-2003 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  15
  16 /* Written by Sergei A. Golubchik, who has a shared copyright to this code */
  17
  18 /* some definitions for full-text indices */
  19
  20 /* #include "myisam.h" */
  21
  22 #ifndef _ft_global_h
  23 #define _ft_global_h
  24 #ifdef  __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 #define HA_FT_MAXBYTELEN 254
  29 #define HA_FT_MAXCHARLEN (HA_FT_MAXBYTELEN/3)
  30
  31 typedef struct st_ft_info FT_INFO;
  32 struct _ft_vft
  33 {
  34   int       (*read_next)(FT_INFO *, char *);
  35   float     (*find_relevance)(FT_INFO *, uchar *, uint);
  36   void      (*close_search)(FT_INFO *);
  37   float     (*get_relevance)(FT_INFO *);
  38   void      (*reinit_search)(FT_INFO *);
  39 };
  40
  41 #ifndef FT_CORE
  42 struct st_ft_info
  43 {
  44   struct _ft_vft *please; /* INTERCAL style :-) */
  45 };
  46 #endif
  47
  48 extern const char *ft_stopword_file;
  49 extern const char *ft_precompiled_stopwords[];
  50
  51 extern ulong ft_min_word_len;
  52 extern ulong ft_max_word_len;
  53 extern ulong ft_query_expansion_limit;
  54 extern char  ft_boolean_syntax[15];
  55 extern struct st_mysql_ftparser ft_default_parser;
  56
  57 int ft_init_stopwords(void);
  58 void ft_free_stopwords(void);
  59
  60 #define FT_NL     0
  61 #define FT_BOOL   1
  62 #define FT_SORTED 2
  63 #define FT_EXPAND 4   /* query expansion */
  64
  65 FT_INFO *ft_init_search(uint,void *, uint, uchar *, uint,CHARSET_INFO *, uchar *);
  66 my_bool ft_boolean_check_syntax_string(const uchar *);
  67
  68 #ifdef  __cplusplus
  69 }
  70 #endif
  71 #endif