+++ /dev/null
-/*
- * Copyright (c) 1995-2002, Index Data.
- * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Id: d1_doespec.c,v 1.15 2002-09-24 13:58:13 adam Exp $
- */
-
-#include <assert.h>
-
-#include <yaz/oid.h>
-#include <yaz/log.h>
-#include <yaz/proto.h>
-#include <yaz/data1.h>
-
-static int match_children(data1_handle dh, data1_node *n,
- Z_Espec1 *e, int i, Z_ETagUnit **t,
- int num);
-
-static int match_children_wildpath(data1_handle dh, data1_node *n,
- Z_Espec1 *e, int i,
- Z_ETagUnit **t, int num)
-{
- return 0;
-}
-
-/*
- * Locate a specific triple within a variant.
- * set is the set to look for, universal set is the set that applies to a
- * triple with an unknown set.
- */
-static Z_Triple *find_triple(Z_Variant *var, oid_value universalset,
- oid_value set, int zclass, int type)
-{
- int i;
- oident *defaultsetent = oid_getentbyoid(var->globalVariantSetId);
- oid_value defaultset = defaultsetent ? defaultsetent->value :
- universalset;
-
- for (i = 0; i < var->num_triples; i++)
- {
- oident *cursetent =
- oid_getentbyoid(var->triples[i]->variantSetId);
- oid_value curset = cursetent ? cursetent->value : defaultset;
-
- if (set == curset &&
- *var->triples[i]->zclass == zclass &&
- *var->triples[i]->type == type)
- return var->triples[i];
- }
- return 0;
-}
-
-static void mark_subtree(data1_node *n, int make_variantlist, int no_data,
- int get_bytes, Z_Variant *vreq)
-{
- data1_node *c;
-
-#if 1
- if (n->which == DATA1N_tag)
-#else
- if (n->which == DATA1N_tag && (!n->child || n->child->which != DATA1N_tag))
- /*
- * This seems to cause multi-level elements to fall out when only a
- * top-level elementRequest has been given... Problem is, I can't figure
- * out what it was supposed to ACHIEVE.... delete when code has been
- * verified.
- */
-#endif
- {
- n->u.tag.node_selected = 1;
- n->u.tag.make_variantlist = make_variantlist;
- n->u.tag.no_data_requested = no_data;
- n->u.tag.get_bytes = get_bytes;
- }
-
- for (c = n->child; c; c = c->next)
- {
- if (c->which == DATA1N_tag && (!n->child ||
- n->child->which != DATA1N_tag))
- {
- c->u.tag.node_selected = 1;
- c->u.tag.make_variantlist = make_variantlist;
- c->u.tag.no_data_requested = no_data;
- c->u.tag.get_bytes = get_bytes;
- }
- mark_subtree(c, make_variantlist, no_data, get_bytes, vreq);
- }
-}
-
-
-static void match_triple (data1_handle dh, Z_Variant *vreq,
- oid_value defsetval,
- oid_value var1, data1_node *n)
-{
- data1_node **c;
-
- if (!(n = n->child))
- return;
- if (n->which != DATA1N_variant)
- return;
- c = &n->child;
- while (*c)
- {
- int remove_flag = 0;
- Z_Triple *r;
-
- assert ((*c)->which == DATA1N_variant);
-
- if ((*c)->u.variant.type->zclass->zclass == 4 &&
- (*c)->u.variant.type->type == 1)
- {
- if ((r = find_triple(vreq, defsetval, var1, 4, 1)) &&
- (r->which == Z_Triple_internationalString))
- {
- const char *string_value =
- r->value.internationalString;
- if (strcmp ((*c)->u.variant.value, string_value))
- remove_flag = 1;
- }
- }
- if (remove_flag)
- {
- data1_free_tree (dh, *c);
- *c = (*c)->next;
- }
- else
- {
- match_triple (dh, vreq, defsetval, var1, *c);
- c = &(*c)->next;
- }
- }
-}
-
-static int match_children_here (data1_handle dh, data1_node *n,
- Z_Espec1 *e, int i,
- Z_ETagUnit **t, int num)
-{
- int counter = 0, hits = 0;
- data1_node *c;
- Z_ETagUnit *tp = *t;
- Z_Occurrences *occur;
-
- for (c = n->child; c ; c = c->next)
- {
- data1_tag *tag = 0;
-
- if (c->which != DATA1N_tag)
- continue;
-
- if (tp->which == Z_ETagUnit_specificTag)
- {
- Z_SpecificTag *want = tp->u.specificTag;
- occur = want->occurrences;
- if (c->u.tag.element)
- tag = c->u.tag.element->tag;
- if (*want->tagType != ((tag && tag->tagset) ? tag->tagset->type :
- 3))
- continue;
- if (want->tagValue->which == Z_StringOrNumeric_numeric)
- {
- if (!tag || tag->which != DATA1T_numeric)
- continue;
- if (*want->tagValue->u.numeric != tag->value.numeric)
- continue;
- }
- else
- {
- assert(want->tagValue->which == Z_StringOrNumeric_string);
- if (tag && tag->which != DATA1T_string)
- continue;
- if (data1_matchstr(want->tagValue->u.string,
- tag ? tag->value.string : c->u.tag.tag))
- continue;
- }
- }
- else
- occur = tp->u.wildThing;
-
- /*
- * Ok, so we have a matching tag. Are we within occurrences-range?
- */
- counter++;
- if (occur && occur->which == Z_Occurrences_last)
- {
- yaz_log(LOG_WARN, "Can't do occurrences=last (yet)");
- return 0;
- }
- if (!occur || occur->which == Z_Occurrences_all ||
- (occur->which == Z_Occurrences_values && counter >=
- *occur->u.values->start))
- {
- if (match_children(dh, c, e, i, t + 1, num - 1))
- {
- c->u.tag.node_selected = 1;
- /*
- * Consider the variant specification if this is a complete
- * match.
- */
- if (num == 1)
- {
- int show_variantlist = 0;
- int no_data = 0;
- int get_bytes = -1;
-
- Z_Variant *vreq =
- e->elements[i]->u.simpleElement->variantRequest;
- oident *defset = oid_getentbyoid(e->defaultVariantSetId);
- oid_value defsetval = defset ? defset->value : VAL_NONE;
- oid_value var1 = oid_getvalbyname("Variant-1");
-
- if (!vreq)
- vreq = e->defaultVariantRequest;
-
- if (vreq)
- {
- Z_Triple *r;
-
- /*
- * 6,5: meta-data requested, variant list.
- */
- if (find_triple(vreq, defsetval, var1, 6, 5))
- show_variantlist = 1;
- /*
- * 9,1: Miscellaneous, no data requested.
- */
- if (find_triple(vreq, defsetval, var1, 9, 1))
- no_data = 1;
-
- /* howmuch */
- if ((r = find_triple(vreq, defsetval, var1, 5, 5)))
- if (r->which == Z_Triple_integer)
- get_bytes = *r->value.integer;
-
- if (!show_variantlist)
- match_triple (dh, vreq, defsetval, var1, c);
- }
- mark_subtree(c, show_variantlist, no_data, get_bytes, vreq);
- }
- hits++;
- /*
- * have we looked at enough children?
- */
- if (!occur || (occur->which == Z_Occurrences_values &&
- (!occur->u.values->howMany ||
- counter - *occur->u.values->start >=
- *occur->u.values->howMany - 1)))
- return hits;
- }
- }
- }
- return hits;
-}
-
-static int match_children(data1_handle dh, data1_node *n, Z_Espec1 *e,
- int i, Z_ETagUnit **t, int num)
-{
- int res;
-
- if (!num)
- return 1;
- switch (t[0]->which)
- {
- case Z_ETagUnit_wildThing:
- case Z_ETagUnit_specificTag:
- res = match_children_here(dh, n, e, i, t, num); break;
- case Z_ETagUnit_wildPath:
- res = match_children_wildpath(dh, n, e, i, t, num); break;
- default:
- abort();
- }
- return res;
-}
-
-int data1_doespec1 (data1_handle dh, data1_node *n, Z_Espec1 *e)
-{
- int i;
-
- n = data1_get_root_tag (dh, n);
- if (n && n->which == DATA1N_tag)
- n->u.tag.node_selected = 1;
-
- for (i = 0; i < e->num_elements; i++)
- {
- if (e->elements[i]->which != Z_ERequest_simpleElement)
- return 100;
- match_children(dh, n, e, i,
- e->elements[i]->u.simpleElement->path->tags,
- e->elements[i]->u.simpleElement->path->num_tags);
- }
- return 0;
-}
projects / yaz-moved-to-github.git / blobdiff