+
+int yaz_sort_spec_to_cql(Z_SortKeySpecList *sksl, WRBUF w)
+{
+ int i;
+ for (i = 0; i < sksl->num_specs; i++)
+ {
+ Z_SortKeySpec *sks = sksl->specs[i];
+ Z_SortKey *sk;
+
+ if (sks->sortElement->which != Z_SortElement_generic)
+ return -1;
+
+ sk = sks->sortElement->u.generic;
+ if (i)
+ wrbuf_puts(w, " ");
+ else
+ wrbuf_puts(w, " SORTBY ");
+ if (sk->which == Z_SortKey_sortAttributes)
+ return -1;
+ else if (sk->which == Z_SortKey_sortField)
+ wrbuf_puts(w, sk->u.sortField);
+ switch (*sks->sortRelation)
+ {
+ case Z_SortKeySpec_ascending:
+ wrbuf_puts(w, "/ascending");
+ break;
+ case Z_SortKeySpec_descending:
+ wrbuf_puts(w, "/descending");
+ break;
+ }
+ switch (*sks->caseSensitivity)
+ {
+ case Z_SortKeySpec_caseSensitive:
+ wrbuf_puts(w, "/respectCase");
+ break;
+ case Z_SortKeySpec_caseInsensitive:
+ wrbuf_puts(w, "/ignoreCase");
+ break;
+ }
+ switch (sks->which)
+ {
+ case Z_SortKeySpec_null:
+ break;
+ case Z_SortKeySpec_abort:
+ wrbuf_puts(w, "/missingFail");
+ break;
+ case Z_SortKeySpec_missingValueData:
+ wrbuf_puts(w, "/missingValue=");
+ wrbuf_write(w, (const char *) sks->u.missingValueData->buf,
+ sks->u.missingValueData->len);
+ break;
+ }
+ }
+ return 0;
+}
+
+int yaz_sort_spec_to_type7(Z_SortKeySpecList *sksl, WRBUF pqf)
+{
+ int i;
+ for (i = 0; i < sksl->num_specs; i++)
+ {
+ Z_SortKeySpec *sks = sksl->specs[i];
+ Z_SortKey *sk;
+
+ if (sks->sortElement->which != Z_SortElement_generic)
+ return -1;
+
+ sk = sks->sortElement->u.generic;
+
+ wrbuf_insert(pqf, 0, "@or ", 4);
+
+ if (sk->which == Z_SortKey_sortAttributes)
+ {
+ int j;
+ for (j = 0; j < sk->u.sortAttributes->list->num_attributes; j++)
+ {
+ Z_AttributeElement *el =
+ sk->u.sortAttributes->list->attributes[j];
+ if (el->which != Z_AttributeValue_numeric)
+ return -1;
+ wrbuf_printf(pqf, " @attr " ODR_INT_PRINTF "=" ODR_INT_PRINTF,
+ *el->attributeType, *el->value.numeric);
+ }
+ }
+ else if (sk->which == Z_SortKey_sortField)
+ {
+ wrbuf_puts(pqf, " @attr 1=");
+ wrbuf_puts(pqf, sk->u.sortField);
+ }
+ switch (*sks->sortRelation)
+ {
+ case Z_SortKeySpec_ascending:
+ wrbuf_puts(pqf, " @attr 7=1 ");
+ break;
+ case Z_SortKeySpec_descending:
+ wrbuf_puts(pqf, " @attr 7=2 ");
+ break;
+ }
+ wrbuf_printf(pqf, "%d", i);
+ }
+ return 0;
+}
+
+int yaz_sort_spec_to_srw_sortkeys(Z_SortKeySpecList *sksl, WRBUF w)
+{
+ int i;
+ for (i = 0; i < sksl->num_specs; i++)
+ {
+ Z_SortKeySpec *sks = sksl->specs[i];
+ Z_SortKey *sk;
+
+ if (sks->sortElement->which != Z_SortElement_generic)
+ return -1;
+
+ sk = sks->sortElement->u.generic;
+
+ if (i)
+ wrbuf_puts(w, " ");
+
+ if (sk->which == Z_SortKey_sortAttributes)
+ return -1;
+ else if (sk->which == Z_SortKey_sortField)
+ {
+ wrbuf_puts(w, sk->u.sortField);
+ }
+ wrbuf_puts(w, ",,"); /* path is absent */
+ switch (*sks->sortRelation)
+ {
+ case Z_SortKeySpec_ascending:
+ wrbuf_puts(w, "1");
+ break;
+ case Z_SortKeySpec_descending:
+ wrbuf_puts(w, "0");
+ break;
+ }
+ wrbuf_puts(w, ",");
+ switch (*sks->caseSensitivity)
+ {
+ case Z_SortKeySpec_caseSensitive:
+ wrbuf_puts(w, "1");
+ break;
+ case Z_SortKeySpec_caseInsensitive:
+ wrbuf_puts(w, "0");
+ break;
+ }
+ wrbuf_puts(w, ",");
+ switch (sks->which)
+ {
+ case Z_SortKeySpec_null:
+ wrbuf_puts(w, "highValue");
+ break;
+ case Z_SortKeySpec_abort:
+ wrbuf_puts(w, "abort");
+ break;
+ case Z_SortKeySpec_missingValueData:
+ wrbuf_write(w, (const char *) sks->u.missingValueData->buf,
+ sks->u.missingValueData->len);
+ break;
+ }
+ }
+ return 0;
+}
+
+int yaz_sort_spec_to_solr_sortkeys(Z_SortKeySpecList *sksl, WRBUF w)
+{
+ int i;
+ for (i = 0; i < sksl->num_specs; i++)
+ {
+ Z_SortKeySpec *sks = sksl->specs[i];
+ Z_SortKey *sk;
+
+ if (sks->sortElement->which != Z_SortElement_generic)
+ return -1;
+
+ sk = sks->sortElement->u.generic;
+
+ if (i)
+ wrbuf_puts(w, ",");
+
+ if (sk->which == Z_SortKey_sortAttributes)
+ return -1;
+ else if (sk->which == Z_SortKey_sortField)
+ {
+ wrbuf_puts(w, sk->u.sortField);
+ }
+ switch (*sks->sortRelation)
+ {
+ case Z_SortKeySpec_ascending:
+ wrbuf_puts(w, " asc");
+ break;
+ case Z_SortKeySpec_descending:
+ wrbuf_puts(w, " desc");
+ break;
+ }
+ }
+ return 0;
+}
+
+
+int yaz_srw_sortkeys_to_sort_spec(const char *srw_sortkeys, WRBUF w)
+{
+ /* sru sortkey layout: path,schema,ascending,caseSensitive,missingValue */
+ /* see cql_sortby_to_sortkeys of YAZ. */
+ char **sortspec;
+ int num_sortspec = 0;
+ int i;
+ NMEM nmem = nmem_create();
+
+ if (srw_sortkeys)
+ nmem_strsplit_blank(nmem, srw_sortkeys, &sortspec, &num_sortspec);
+ for (i = 0; i < num_sortspec; i++)
+ {
+ char **arg;
+ int num_arg;
+ int ascending = 1;
+ int case_sensitive = 0;
+ const char *missing = 0;
+ nmem_strsplitx(nmem, ",", sortspec[i], &arg, &num_arg, 0);
+
+ if (num_arg > 2 && arg[2][0])
+ ascending = atoi(arg[2]);
+ if (num_arg > 3 && arg[3][0])
+ case_sensitive = atoi(arg[3]);
+ if (num_arg > 4 && arg[4][0])
+ missing = arg[4];
+
+ if (i)
+ wrbuf_puts(w, " ");
+
+ wrbuf_puts(w, arg[0]); /* field */
+ wrbuf_puts(w, " ");
+
+ wrbuf_puts(w, ascending ? "a" : "d");
+ wrbuf_puts(w, case_sensitive ? "s" : "i");
+ if (missing)
+ {
+ if (!strcmp(missing, "omit")) {
+ ;
+ }
+ else if (!strcmp(missing, "abort"))
+ wrbuf_puts(w, "!");
+ else if (!strcmp(missing, "lowValue")) {
+ ;
+ }
+ else if (!strcmp(missing, "highValue")) {
+ ;
+ }
+ else
+ {
+ wrbuf_puts(w, "=");
+ wrbuf_puts(w, missing);
+ }
+ }
+ }
+ nmem_destroy(nmem);
+ return 0;
+}
+
+int yaz_solr_sortkeys_to_sort_spec(const char *solr_sortkeys, WRBUF w)
+{
+ /* Solr sortkey layout: field order[, field order] */
+ /* see cql_sortby_to_sortkeys of YAZ. */
+ char **sortspec;
+ int num_sortspec = 0;
+ int i;
+ NMEM nmem = nmem_create();
+
+ if (solr_sortkeys)
+ nmem_strsplit(nmem, ",", solr_sortkeys, &sortspec, &num_sortspec);
+ for (i = 0; i < num_sortspec; i++)
+ {
+ char **arg;
+ int num_arg;
+ char order = 'a';
+ int case_sensitive = 0;
+ nmem_strsplitx(nmem, " ", sortspec[i], &arg, &num_arg, 0);
+
+ if (num_arg != 2)
+ return -1;
+
+ if (!yaz_matchstr(arg[1], "asc"))
+ order = 'a';
+ else if (!yaz_matchstr(arg[1], "desc"))
+ order = 'd';
+ else
+ return -1;
+
+ if (i)
+ wrbuf_puts(w, " ");
+
+ wrbuf_puts(w, arg[0]); /* field */
+ wrbuf_puts(w, " ");
+
+ wrbuf_putc(w, order);
+ // Always in-sensitive
+ wrbuf_puts(w, case_sensitive ? "s" : "i");
+ }
+ nmem_destroy(nmem);
+ return 0;
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+