1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2013 Index Data
3 * See the file LICENSE for details.
7 * \brief Implements SortSpec parsing.
16 #include <yaz/matchstr.h>
18 #include <yaz/z-core.h>
19 #include <yaz/sortspec.h>
20 #include <yaz/oid_db.h>
21 #include <yaz/wrbuf.h>
23 Z_SortKeySpecList *yaz_sort_spec(ODR out, const char *arg)
25 char sort_string_buf[64], sort_flags[64];
26 Z_SortKeySpecList *sksl = (Z_SortKeySpecList *)
27 odr_malloc(out, sizeof(*sksl));
31 sksl->specs = (Z_SortKeySpec **)odr_malloc(out, sizeof(sksl->specs) * 20);
33 while ((sscanf(arg, "%63s %63s%n", sort_string_buf,
34 sort_flags, &off)) == 2 && off > 1)
37 char *sort_string_sep;
38 char *sort_string = sort_string_buf;
39 Z_SortKeySpec *sks = (Z_SortKeySpec *) odr_malloc(out, sizeof(*sks));
40 Z_SortKey *sk = (Z_SortKey *) odr_malloc(out, sizeof(*sk));
43 sksl->specs[sksl->num_specs++] = sks;
44 sks->sortElement = (Z_SortElement *)
45 odr_malloc(out, sizeof(*sks->sortElement));
46 sks->sortElement->which = Z_SortElement_generic;
47 sks->sortElement->u.generic = sk;
49 if ((sort_string_sep = strchr(sort_string, '=')))
52 sk->which = Z_SortKey_sortAttributes;
53 sk->u.sortAttributes = (Z_SortAttributes *)
54 odr_malloc(out, sizeof(*sk->u.sortAttributes));
55 sk->u.sortAttributes->id = odr_oiddup(out, yaz_oid_attset_bib_1);
56 sk->u.sortAttributes->list = (Z_AttributeList *)
57 odr_malloc(out, sizeof(*sk->u.sortAttributes->list));
58 sk->u.sortAttributes->list->attributes = (Z_AttributeElement **)
60 sizeof(*sk->u.sortAttributes->list->attributes));
61 while (i < 10 && sort_string && sort_string_sep)
63 Z_AttributeElement *el = (Z_AttributeElement *)
64 odr_malloc(out, sizeof(*el));
65 sk->u.sortAttributes->list->attributes[i] = el;
67 el->attributeType = odr_intdup(out, atoi(sort_string));
68 el->which = Z_AttributeValue_numeric;
70 odr_intdup(out, odr_atoi(sort_string_sep + 1));
72 sort_string = strchr(sort_string, ',');
76 sort_string_sep = strchr(sort_string, '=');
79 sk->u.sortAttributes->list->num_attributes = i;
83 sk->which = Z_SortKey_sortField;
84 sk->u.sortField = odr_strdup (out, sort_string);
86 sks->sortRelation = odr_intdup(out, Z_SortKeySpec_ascending);
87 sks->caseSensitivity = odr_intdup(out, Z_SortKeySpec_caseInsensitive);
89 sks->which = Z_SortKeySpec_null;
90 sks->u.null = odr_nullval ();
92 for (i = 0; sort_flags[i]; i++)
94 switch (sort_flags[i])
99 *sks->sortRelation = Z_SortKeySpec_descending;
104 *sks->sortRelation = Z_SortKeySpec_ascending;
108 *sks->caseSensitivity = Z_SortKeySpec_caseInsensitive;
112 *sks->caseSensitivity = Z_SortKeySpec_caseSensitive;
115 sks->which = Z_SortKeySpec_abort;
116 sks->u.abort = odr_nullval();
119 sks->which = Z_SortKeySpec_missingValueData;
120 sks->u.missingValueData = (Odr_oct*)
121 odr_malloc(out, sizeof(Odr_oct));
123 sks->u.missingValueData->len = strlen(sort_flags+i);
125 sks->u.missingValueData->size = sks->u.missingValueData->len;
127 sks->u.missingValueData->buf = (unsigned char*)
128 odr_strdup(out, sort_flags+i);
129 i += strlen(sort_flags+i) - 1;
134 if (!sksl->num_specs)
139 int yaz_sort_spec_to_cql(Z_SortKeySpecList *sksl, WRBUF w)
142 for (i = 0; i < sksl->num_specs; i++)
144 Z_SortKeySpec *sks = sksl->specs[i];
147 if (sks->sortElement->which != Z_SortElement_generic)
150 sk = sks->sortElement->u.generic;
154 wrbuf_puts(w, " SORTBY ");
155 if (sk->which == Z_SortKey_sortAttributes)
157 else if (sk->which == Z_SortKey_sortField)
158 wrbuf_puts(w, sk->u.sortField);
159 switch (*sks->sortRelation)
161 case Z_SortKeySpec_ascending:
162 wrbuf_puts(w, "/ascending");
164 case Z_SortKeySpec_descending:
165 wrbuf_puts(w, "/descending");
168 switch (*sks->caseSensitivity)
170 case Z_SortKeySpec_caseSensitive:
171 wrbuf_puts(w, "/respectCase");
173 case Z_SortKeySpec_caseInsensitive:
174 wrbuf_puts(w, "/ignoreCase");
179 case Z_SortKeySpec_null:
181 case Z_SortKeySpec_abort:
182 wrbuf_puts(w, "/missingFail");
184 case Z_SortKeySpec_missingValueData:
185 wrbuf_puts(w, "/missingValue=");
186 wrbuf_write(w, (const char *) sks->u.missingValueData->buf,
187 sks->u.missingValueData->len);
194 int yaz_sort_spec_to_type7(Z_SortKeySpecList *sksl, WRBUF pqf)
197 for (i = 0; i < sksl->num_specs; i++)
199 Z_SortKeySpec *sks = sksl->specs[i];
202 if (sks->sortElement->which != Z_SortElement_generic)
205 sk = sks->sortElement->u.generic;
207 wrbuf_insert(pqf, 0, "@or ", 4);
209 if (sk->which == Z_SortKey_sortAttributes)
212 for (j = 0; j < sk->u.sortAttributes->list->num_attributes; j++)
214 Z_AttributeElement *el =
215 sk->u.sortAttributes->list->attributes[j];
216 if (el->which != Z_AttributeValue_numeric)
218 wrbuf_printf(pqf, " @attr " ODR_INT_PRINTF "=" ODR_INT_PRINTF,
219 *el->attributeType, *el->value.numeric);
222 else if (sk->which == Z_SortKey_sortField)
224 wrbuf_puts(pqf, " @attr 1=");
225 wrbuf_puts(pqf, sk->u.sortField);
227 switch (*sks->sortRelation)
229 case Z_SortKeySpec_ascending:
230 wrbuf_puts(pqf, " @attr 7=1 ");
232 case Z_SortKeySpec_descending:
233 wrbuf_puts(pqf, " @attr 7=2 ");
236 wrbuf_printf(pqf, "%d", i);
241 int yaz_sort_spec_to_srw_sortkeys(Z_SortKeySpecList *sksl, WRBUF w)
244 for (i = 0; i < sksl->num_specs; i++)
246 Z_SortKeySpec *sks = sksl->specs[i];
249 if (sks->sortElement->which != Z_SortElement_generic)
252 sk = sks->sortElement->u.generic;
257 if (sk->which == Z_SortKey_sortAttributes)
259 else if (sk->which == Z_SortKey_sortField)
261 wrbuf_puts(w, sk->u.sortField);
263 wrbuf_puts(w, ",,"); /* path is absent */
264 switch (*sks->sortRelation)
266 case Z_SortKeySpec_ascending:
269 case Z_SortKeySpec_descending:
274 switch (*sks->caseSensitivity)
276 case Z_SortKeySpec_caseSensitive:
279 case Z_SortKeySpec_caseInsensitive:
286 case Z_SortKeySpec_null:
287 wrbuf_puts(w, "highValue");
289 case Z_SortKeySpec_abort:
290 wrbuf_puts(w, "abort");
292 case Z_SortKeySpec_missingValueData:
293 wrbuf_write(w, (const char *) sks->u.missingValueData->buf,
294 sks->u.missingValueData->len);
301 int yaz_sort_spec_to_solr_sortkeys(Z_SortKeySpecList *sksl, WRBUF w)
304 for (i = 0; i < sksl->num_specs; i++)
306 Z_SortKeySpec *sks = sksl->specs[i];
309 if (sks->sortElement->which != Z_SortElement_generic)
312 sk = sks->sortElement->u.generic;
317 if (sk->which == Z_SortKey_sortAttributes)
319 else if (sk->which == Z_SortKey_sortField)
321 wrbuf_puts(w, sk->u.sortField);
323 switch (*sks->sortRelation)
325 case Z_SortKeySpec_ascending:
326 wrbuf_puts(w, " asc");
328 case Z_SortKeySpec_descending:
329 wrbuf_puts(w, " desc");
337 int yaz_srw_sortkeys_to_sort_spec(const char *srw_sortkeys, WRBUF w)
339 /* sru sortkey layout: path,schema,ascending,caseSensitive,missingValue */
340 /* see cql_sortby_to_sortkeys of YAZ. */
342 int num_sortspec = 0;
344 NMEM nmem = nmem_create();
347 nmem_strsplit_blank(nmem, srw_sortkeys, &sortspec, &num_sortspec);
348 for (i = 0; i < num_sortspec; i++)
353 int case_sensitive = 0;
354 const char *missing = 0;
355 nmem_strsplitx(nmem, ",", sortspec[i], &arg, &num_arg, 0);
357 if (num_arg > 2 && arg[2][0])
358 ascending = atoi(arg[2]);
359 if (num_arg > 3 && arg[3][0])
360 case_sensitive = atoi(arg[3]);
361 if (num_arg > 4 && arg[4][0])
367 wrbuf_puts(w, arg[0]); /* field */
370 wrbuf_puts(w, ascending ? "a" : "d");
371 wrbuf_puts(w, case_sensitive ? "s" : "i");
374 if (!strcmp(missing, "omit")) {
377 else if (!strcmp(missing, "abort"))
379 else if (!strcmp(missing, "lowValue")) {
382 else if (!strcmp(missing, "highValue")) {
388 wrbuf_puts(w, missing);
396 int yaz_solr_sortkeys_to_sort_spec(const char *solr_sortkeys, WRBUF w)
398 /* Solr sortkey layout: field order[, field order] */
399 /* see cql_sortby_to_sortkeys of YAZ. */
401 int num_sortspec = 0;
403 NMEM nmem = nmem_create();
406 nmem_strsplit(nmem, ",", solr_sortkeys, &sortspec, &num_sortspec);
407 for (i = 0; i < num_sortspec; i++)
412 int case_sensitive = 0;
413 nmem_strsplitx(nmem, " ", sortspec[i], &arg, &num_arg, 0);
418 if (!yaz_matchstr(arg[1], "asc"))
420 else if (!yaz_matchstr(arg[1], "desc"))
428 wrbuf_puts(w, arg[0]); /* field */
431 wrbuf_putc(w, order);
432 // Always in-sensitive
433 wrbuf_puts(w, case_sensitive ? "s" : "i");
443 * c-file-style: "Stroustrup"
444 * indent-tabs-mode: nil
446 * vim: shiftwidth=4 tabstop=8 expandtab