2 * Copyright (C) 1994-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.13 1999-02-18 15:01:04 adam
8 * Structure=key uses register type 0.
10 * Revision 1.12 1999/02/12 13:29:25 adam
11 * Implemented position-flag for registers.
13 * Revision 1.11 1998/10/13 20:09:19 adam
14 * Changed call to readconf_line.
16 * Revision 1.10 1998/06/23 15:33:37 adam
17 * Added feature to specify sort criteria in query (type 7 specifies
20 * Revision 1.9 1998/04/02 14:35:30 adam
21 * First version of Zebra that works with compiled ASN.1.
23 * Revision 1.8 1998/03/05 08:42:44 adam
24 * Minor changes to zebramap data structures. Query mapping rules changed.
26 * Revision 1.7 1998/02/10 12:03:07 adam
29 * Revision 1.6 1998/01/29 13:36:01 adam
30 * Structure word-list, free-form-text and document-text all
31 * trigger ranked search.
33 * Revision 1.5 1997/11/19 10:22:14 adam
34 * Bug fix (introduced by previous commit).
36 * Revision 1.4 1997/11/18 10:05:08 adam
37 * Changed character map facility so that admin can specify character
38 * mapping files for each register type, w, p, etc.
40 * Revision 1.3 1997/11/17 15:35:26 adam
41 * Bug fix. Relation=relevance wasn't observed.
43 * Revision 1.2 1997/10/31 12:39:30 adam
44 * Changed log message.
46 * Revision 1.1 1997/10/27 14:33:06 adam
47 * Moved towards generic character mapping depending on "structure"
48 * field in abstract syntax file. Fixed a few memory leaks. Fixed
49 * bug with negative integers when doing searches with relational
61 #define ZEBRA_MAP_TYPE_SORT 1
62 #define ZEBRA_MAP_TYPE_INDEX 2
78 const char *maptab_name;
79 struct zebra_map *next;
85 struct zebra_map *map_list;
87 const char *temp_map_ptr[2];
88 struct zebra_map **lookup_array;
91 void zebra_maps_close (ZebraMaps zms)
93 struct zebra_map *zm = zms->map_list;
97 chrmaptab_destroy (zm->maptab);
100 nmem_destroy (zms->nmem);
104 static void zebra_map_read (ZebraMaps zms, const char *name)
111 struct zebra_map **zm = 0, *zp;
113 if (!(f = yaz_path_fopen(zms->tabpath, name, "r")))
115 logf(LOG_WARN|LOG_ERRNO, "%s", name);
118 while ((argc = readconf_line(f, &lineno, line, 512, argv, 10)))
120 if (!yaz_matchstr (argv[0], "index") && argc == 2)
126 *zm = nmem_malloc (zms->nmem, sizeof(**zm));
127 (*zm)->reg_id = argv[1][0];
128 (*zm)->maptab_name = NULL;
129 (*zm)->maptab = NULL;
130 (*zm)->type = ZEBRA_MAP_TYPE_INDEX;
131 (*zm)->completeness = 0;
132 (*zm)->positioned = 1;
134 else if (!yaz_matchstr (argv[0], "sort") && argc == 2)
140 *zm = nmem_malloc (zms->nmem, sizeof(**zm));
141 (*zm)->reg_id = argv[1][0];
142 (*zm)->maptab_name = NULL;
143 (*zm)->type = ZEBRA_MAP_TYPE_SORT;
144 (*zm)->u.sort.entry_size = 80;
145 (*zm)->maptab = NULL;
146 (*zm)->completeness = 0;
147 (*zm)->positioned = 0;
149 else if (zm && !yaz_matchstr (argv[0], "charmap") && argc == 2)
151 (*zm)->maptab_name = nmem_strdup (zms->nmem, argv[1]);
153 else if (zm && !yaz_matchstr (argv[0], "completeness") && argc == 2)
155 (*zm)->completeness = atoi (argv[1]);
157 else if (zm && !yaz_matchstr (argv[0], "position") && argc == 2)
159 (*zm)->positioned = atoi (argv[1]);
161 else if (zm && !yaz_matchstr (argv[0], "entrysize") && argc == 2)
163 if ((*zm)->type == ZEBRA_MAP_TYPE_SORT)
164 (*zm)->u.sort.entry_size = atoi (argv[1]);
171 for (zp = zms->map_list; zp; zp = zp->next)
172 zms->lookup_array[zp->reg_id] = zp;
175 static void zms_map_handle (void *p, const char *name, const char *value)
179 zebra_map_read (zms, value);
182 ZebraMaps zebra_maps_open (Res res)
184 ZebraMaps zms = xmalloc (sizeof(*zms));
187 zms->nmem = nmem_create ();
188 zms->tabpath = nmem_strdup (zms->nmem, res_get (res, "profilePath"));
189 zms->map_list = NULL;
191 zms->temp_map_str[0] = '\0';
192 zms->temp_map_str[1] = '\0';
194 zms->temp_map_ptr[0] = zms->temp_map_str;
195 zms->temp_map_ptr[1] = NULL;
198 nmem_malloc (zms->nmem, sizeof(*zms->lookup_array)*256);
199 for (i = 0; i<256; i++)
200 zms->lookup_array[i] = 0;
201 if (!res || !res_trav (res, "index", zms, zms_map_handle))
202 zebra_map_read (zms, "default.idx");
206 struct zebra_map *zebra_map_get (ZebraMaps zms, unsigned reg_id)
208 return zms->lookup_array[reg_id];
211 chrmaptab zebra_charmap_get (ZebraMaps zms, unsigned reg_id)
213 struct zebra_map *zm = zebra_map_get (zms, reg_id);
216 zm = nmem_malloc (zms->nmem, sizeof(*zm));
217 logf (LOG_WARN, "Unknown register type: %c", reg_id);
220 zm->maptab_name = NULL;
222 zm->type = ZEBRA_MAP_TYPE_INDEX;
223 zm->completeness = 0;
224 zm->next = zms->map_list;
225 zms->map_list = zm->next;
227 zms->lookup_array[zm->reg_id & 255] = zm;
231 if (!zm->maptab_name || !yaz_matchstr (zm->maptab_name, "@"))
233 if (!(zm->maptab = chrmaptab_create (zms->tabpath,
234 zm->maptab_name, 0)))
235 logf(LOG_WARN, "Failed to read character table %s",
238 logf(LOG_DEBUG, "Read character table %s", zm->maptab_name);
243 const char **zebra_maps_input (ZebraMaps zms, unsigned reg_id,
244 const char **from, int len)
248 maptab = zebra_charmap_get (zms, reg_id);
250 return chr_map_input(maptab, from, len);
252 zms->temp_map_str[0] = **from;
255 return zms->temp_map_ptr;
258 const char *zebra_maps_output(ZebraMaps zms, unsigned reg_id,
262 unsigned char i = (unsigned char) **from;
263 static char buf[2] = {0,0};
265 maptab = zebra_charmap_get (zms, reg_id);
267 return chr_map_output (maptab, from, 1);
274 /* ------------------------------------ */
280 Z_AttributeElement **attributeList;
284 static int attr_find (AttrType *src, oid_value *attributeSetP)
286 while (src->major < src->num_attributes)
288 Z_AttributeElement *element;
290 element = src->attributeList[src->major];
291 if (src->type == *element->attributeType)
293 switch (element->which)
295 case Z_AttributeValue_numeric:
297 if (element->attributeSet && attributeSetP)
301 attrset = oid_getentbyoid (element->attributeSet);
302 *attributeSetP = attrset->value;
304 return *element->value.numeric;
306 case Z_AttributeValue_complex:
307 if (src->minor >= element->value.complex->num_list ||
308 element->value.complex->list[src->minor]->which !=
309 Z_StringOrNumeric_numeric)
312 if (element->attributeSet && attributeSetP)
316 attrset = oid_getentbyoid (element->attributeSet);
317 *attributeSetP = attrset->value;
319 return *element->value.complex->list[src->minor-1]->u.numeric;
329 static void attr_init_APT (AttrType *src, Z_AttributesPlusTerm *zapt, int type)
332 src->attributeList = zapt->attributes->attributes;
333 src->num_attributes = zapt->attributes->num_attributes;
335 src->attributeList = zapt->attributeList;
336 src->num_attributes = zapt->num_attributes;
343 static void attr_init_AttrList (AttrType *src, Z_AttributeList *list, int type)
345 src->attributeList = list->attributes;
346 src->num_attributes = list->num_attributes;
352 /* ------------------------------------ */
354 int zebra_maps_is_complete (ZebraMaps zms, unsigned reg_id)
356 struct zebra_map *zm = zebra_map_get (zms, reg_id);
358 return zm->completeness;
362 int zebra_maps_is_positioned (ZebraMaps zms, unsigned reg_id)
364 struct zebra_map *zm = zebra_map_get (zms, reg_id);
366 return zm->positioned;
370 int zebra_maps_is_sort (ZebraMaps zms, unsigned reg_id)
372 struct zebra_map *zm = zebra_map_get (zms, reg_id);
374 return zm->type == ZEBRA_MAP_TYPE_SORT;
378 int zebra_maps_sort (ZebraMaps zms, Z_SortAttributes *sortAttributes)
381 attr_init_AttrList (&use, sortAttributes->list, 1);
383 return attr_find (&use, NULL);
386 int zebra_maps_attr (ZebraMaps zms, Z_AttributesPlusTerm *zapt,
387 unsigned *reg_id, char **search_type, char **rank_type,
388 int *complete_flag, int *sort_flag)
390 AttrType completeness;
393 AttrType sort_relation;
394 int completeness_value;
397 int sort_relation_value;
399 attr_init_APT (&structure, zapt, 4);
400 attr_init_APT (&completeness, zapt, 6);
401 attr_init_APT (&relation, zapt, 2);
402 attr_init_APT (&sort_relation, zapt, 7);
404 completeness_value = attr_find (&completeness, NULL);
405 structure_value = attr_find (&structure, NULL);
406 relation_value = attr_find (&relation, NULL);
407 sort_relation_value = attr_find (&sort_relation, NULL);
409 if (completeness_value == 2 || completeness_value == 3)
415 *sort_flag = (sort_relation_value > 0) ? 1 : 0;
416 *search_type = "phrase";
418 if (relation_value == 102)
425 switch (structure_value)
427 case 6: /* word list */
428 *search_type = "and-list";
430 case 105: /* free-form-text */
431 *search_type = "or-list";
433 case 106: /* document-text */
434 *search_type = "or-list";
439 case 108: /* string */
440 *search_type = "phrase";
442 case 107: /* local-number */
443 *search_type = "local";
446 case 109: /* numeric string */
448 *search_type = "numeric";
452 *search_type = "phrase";
456 *search_type = "phrase";