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