2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.24 1995-11-21 15:01:15 adam
8 * New general match criteria implemented.
9 * New feature: document groups.
11 * Revision 1.23 1995/11/20 16:59:45 adam
12 * New update method: the 'old' keys are saved for each records.
14 * Revision 1.22 1995/11/20 11:56:26 adam
15 * Work on new traversal.
17 * Revision 1.21 1995/11/16 15:34:55 adam
18 * Uses new record management system in both indexer and server.
20 * Revision 1.20 1995/11/15 14:46:18 adam
21 * Started work on better record management system.
23 * Revision 1.19 1995/10/27 14:00:11 adam
24 * Implemented detection of database availability.
26 * Revision 1.18 1995/10/17 18:02:08 adam
27 * New feature: databases. Implemented as prefix to words in dictionary.
29 * Revision 1.17 1995/10/13 16:01:49 adam
32 * Revision 1.16 1995/10/10 12:24:38 adam
33 * Temporary sort files are compressed.
35 * Revision 1.15 1995/10/04 16:57:19 adam
36 * Key input and merge sort in one pass.
38 * Revision 1.14 1995/09/29 14:01:40 adam
41 * Revision 1.13 1995/09/28 14:22:56 adam
42 * Sort uses smaller temporary files.
44 * Revision 1.12 1995/09/28 12:10:32 adam
45 * Bug fixes. Field prefix used in queries.
47 * Revision 1.11 1995/09/27 12:22:28 adam
48 * More work on extract in record control.
49 * Field name is not in isam keys but in prefix in dictionary words.
51 * Revision 1.10 1995/09/14 07:48:23 adam
52 * Record control management.
54 * Revision 1.9 1995/09/11 13:09:33 adam
55 * More work on relevance feedback.
57 * Revision 1.8 1995/09/08 14:52:27 adam
58 * Minor changes. Dictionary is lower case now.
60 * Revision 1.7 1995/09/06 16:11:16 adam
61 * Option: only one word key per file.
63 * Revision 1.6 1995/09/05 15:28:39 adam
64 * More work on search engine.
66 * Revision 1.5 1995/09/04 12:33:42 adam
67 * Various cleanup. YAZ util used instead.
69 * Revision 1.4 1995/09/04 09:10:35 adam
70 * More work on index add/del/update.
71 * Merge sort implemented.
72 * Initial work on z39 server.
74 * Revision 1.3 1995/09/01 14:06:35 adam
75 * Split of work into more files.
77 * Revision 1.2 1995/09/01 10:30:24 adam
78 * More work on indexing. Not working yet.
80 * Revision 1.1 1995/08/31 14:50:24 adam
81 * New simple file index tool.
89 #define IT_MAX_WORD 256
90 #define IT_KEY_HAVE_SEQNO 1
91 #define IT_KEY_HAVE_FIELD 0
98 enum dirsKind { dirs_dir, dirs_file };
119 struct dirs_info *dirs_open (Dict dict, const char *rep);
120 struct dirs_entry *dirs_read (struct dirs_info *p);
121 struct dirs_entry *dirs_last (struct dirs_info *p);
122 void dirs_mkdir (struct dirs_info *p, const char *src, int ctime);
123 void dirs_rmdir (struct dirs_info *p, const char *src);
124 void dirs_add (struct dirs_info *p, const char *src, int sysno, int ctime);
125 void dirs_del (struct dirs_info *p, const char *src);
126 void dirs_free (struct dirs_info **pp);
128 struct dir_entry *dir_open (const char *rep);
129 void dir_sort (struct dir_entry *e);
130 void dir_free (struct dir_entry **e_p);
132 void repositoryUpdate (struct recordGroup *rGroup);
133 void repositoryExtract (struct recordGroup *rGroup);
135 void key_open (int mem);
136 int key_close (void);
137 void key_write (int cmd, struct it_key *k, const char *str);
138 int key_compare (const void *p1, const void *p2);
139 int key_qsort_compare (const void *p1, const void *p2);
140 void key_logdump (int mask, const void *p);
141 void key_input (const char *dict_fname, const char *isam_fname,
142 int nkeys, int cache);
143 int merge_sort (char **buf, int from, int to);
145 #define TEMP_FNAME "keys%d.tmp"
146 #define FNAME_WORD_DICT "worddict"
147 #define FNAME_WORD_ISAM "wordisam"
148 #define FNAME_FILE_DICT "filedict"
150 #define RECORD_BASE 1
153 #define FNAME_SYS_IDX "sysidx"
154 #define SYS_IDX_ENTRY_LEN 120
157 struct strtab *strtab_mk (void);
158 int strtab_src (struct strtab *t, const char *name, void ***infop);
159 void strtab_del (struct strtab *t,
160 void (*func)(const char *name, void *info, void *data),
162 int index_char_cvt (int c);
163 int index_word_prefix (char *string, int attset_ordinal,
164 int local_attribute, const char *databaseName);
166 int fileExtract (SYSNO *sysno, const char *fname,
167 struct recordGroup *rGroup, int deleteFlag);