2 * Copyright (c) 1995, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.1 1995-11-01 11:56:07 quinn
8 * Added Retrieval (data management) functions en masse.
21 #define D1_VARIANTARRAY 20 /* fixed max length on sup'd variant-list. Lazy me */
23 Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o);
25 static Z_ElementMetaData *get_ElementMetaData(ODR o)
27 Z_ElementMetaData *r = odr_malloc(o, sizeof(*r));
34 r->num_supportedVariants = 0;
35 r->supportedVariants = 0;
37 r->elementDescriptor = 0;
39 r->surrogateElement = 0;
46 * N should point to the *last* (leaf) triple in a sequence. Construct a variant
47 * from each of the triples beginning (ending) with 'n', up to the
48 * nearest parent tag. num should equal the number of triples in the
51 static Z_Variant *make_variant(data1_node *n, int num, ODR o)
53 Z_Variant *v = odr_malloc(o, sizeof(*v));
56 v->globalVariantSetId = 0;
58 v->triples = odr_malloc(o, sizeof(Z_Triple*) * num);
61 * cycle back up through the tree of variants
62 * (traversing exactly 'level' variants).
64 for (p = n, num--; p && num >= 0; p = p->parent, num--)
68 assert(p->which == DATA1N_variant);
69 t = v->triples[num] = odr_malloc(o, sizeof(*t));
71 t->class = odr_malloc(o, sizeof(int));
72 *t->class = p->u.variant.type->class->class;
73 t->type = odr_malloc(o, sizeof(int));
74 *t->type = p->u.variant.type->type;
76 switch (p->u.variant.type->datatype)
79 t->which = Z_Triple_internationalString;
80 t->value.internationalString = odr_malloc(o,
81 strlen(p->u.variant.value)+1);
82 strcpy(t->value.internationalString, p->u.variant.value);
85 logf(LOG_WARN, "Unable to handle value for variant %s",
86 p->u.variant.type->name);
94 * Traverse the variant children of n, constructing a supportedVariant list.
96 static int traverse_triples(data1_node *n, int level, Z_ElementMetaData *m,
101 for (c = n->child; c; c = c->next)
102 if (c->which == DATA1N_data && level)
104 if (!m->supportedVariants)
105 m->supportedVariants = odr_malloc(o, sizeof(Z_Variant*) *
107 else if (m->num_supportedVariants >= D1_VARIANTARRAY)
109 logf(LOG_WARN, "Too many variants (D1_VARIANTARRAY==%d)",
114 if (!(m->supportedVariants[m->num_supportedVariants++] =
115 make_variant(n, level, o)))
118 else if (c->which == DATA1N_variant)
119 if (traverse_triples(c, level+1, m, o) < 0)
124 static Z_ElementData *nodetoelementdata(data1_node *n, int select, int leaf,
127 Z_ElementData *res = odr_malloc(o, sizeof(*res));
131 res->which = Z_ElementData_elementNotThere;
132 res->u.elementNotThere = ODR_NULLVAL;
134 else if (n->which == DATA1N_data && (leaf || n->parent->num_children == 1))
136 switch (n->u.data.what)
139 res->which = Z_ElementData_numeric;
140 res->u.numeric = odr_malloc(o, sizeof(int));
141 *res->u.numeric = atoi(n->u.data.data);
144 res->which = Z_ElementData_string;
145 res->u.string = odr_malloc(o, n->u.data.len+1);
146 memcpy(res->u.string, n->u.data.data, n->u.data.len);
147 res->u.string[n->u.data.len] = '\0';
150 logf(LOG_WARN, "Can't handle datatype.");
156 res->which = Z_ElementData_subtree;
157 if (!(res->u.subtree = data1_nodetogr(n->parent, select, o)))
163 static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o)
165 Z_TaggedElement *res = odr_malloc(o, sizeof(*res));
170 if (n->which == DATA1N_tag)
172 if (n->u.tag.element)
173 tag = n->u.tag.element->tag;
177 else if (n->which == DATA1N_data || n->which == DATA1N_variant)
179 if (!(tag = data1_gettagbyname(n->root->u.root.absyn->tagset,
182 logf(LOG_WARN, "Unable to locate tag for 'wellKnown'");
190 logf(LOG_WARN, "Bad data.");
194 res->tagType = odr_malloc(o, sizeof(int));
195 *res->tagType = tag ? tag->tagset->type : 3;
196 res->tagValue = odr_malloc(o, sizeof(Z_StringOrNumeric));
197 if (tag && tag->which == DATA1T_numeric)
199 res->tagValue->which = Z_StringOrNumeric_numeric;
200 res->tagValue->u.numeric = odr_malloc(o, sizeof(int));
201 *res->tagValue->u.numeric = tag->value.numeric;
207 if (tag) /* well-known tag */
208 tagstr = tag->value.string;
209 else /* tag local to this file */
210 tagstr = n->u.tag.tag;
212 res->tagValue->which = Z_StringOrNumeric_string;
213 res->tagValue->u.string = odr_malloc(o, strlen(tagstr)+1);
214 strcpy(res->tagValue->u.string, tagstr);
216 res->tagOccurrence = 0;
217 res->appliedVariant = 0;
219 if (n->which == DATA1N_variant || (data && data->which ==
220 DATA1N_variant && data->parent->num_children == 1))
224 res->metaData = get_ElementMetaData(o);
225 if (traverse_triples(data, 0, res->metaData, o) < 0)
227 while (data && data->which == DATA1N_variant)
232 res->appliedVariant = make_variant(data->parent, nvars-1, o);
234 if (!(res->content = nodetoelementdata(data, select, leaf, o)))
239 Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o)
241 Z_GenericRecord *res = odr_malloc(o, sizeof(*res));
244 res->elements = odr_malloc(o, sizeof(Z_TaggedElement *) * n->num_children);
245 res->num_elements = 0;
246 for (c = n->child; c; c = c->next)
248 if (c->which == DATA1N_tag && select && !c->u.tag.node_selected)
250 if (!(res->elements[res->num_elements++] =
251 nodetotaggedelement(c, select, o)))