2 * Copyright (c) 1995, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.3 1995-11-13 09:27:35 quinn
8 * Fiddling with the variant stuff.
10 * Revision 1.2 1995/11/01 13:54:46 quinn
13 * Revision 1.1 1995/11/01 11:56:07 quinn
14 * Added Retrieval (data management) functions en masse.
27 #define D1_VARIANTARRAY 20 /* fixed max length on sup'd variant-list. Lazy me */
29 Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o);
31 static Z_ElementMetaData *get_ElementMetaData(ODR o)
33 Z_ElementMetaData *r = odr_malloc(o, sizeof(*r));
40 r->num_supportedVariants = 0;
41 r->supportedVariants = 0;
43 r->elementDescriptor = 0;
45 r->surrogateElement = 0;
52 * N should point to the *last* (leaf) triple in a sequence. Construct a variant
53 * from each of the triples beginning (ending) with 'n', up to the
54 * nearest parent tag. num should equal the number of triples in the
57 static Z_Variant *make_variant(data1_node *n, int num, ODR o)
59 Z_Variant *v = odr_malloc(o, sizeof(*v));
62 v->globalVariantSetId = 0;
64 v->triples = odr_malloc(o, sizeof(Z_Triple*) * num);
67 * cycle back up through the tree of variants
68 * (traversing exactly 'level' variants).
70 for (p = n, num--; p && num >= 0; p = p->parent, num--)
74 assert(p->which == DATA1N_variant);
75 t = v->triples[num] = odr_malloc(o, sizeof(*t));
77 t->class = odr_malloc(o, sizeof(int));
78 *t->class = p->u.variant.type->class->class;
79 t->type = odr_malloc(o, sizeof(int));
80 *t->type = p->u.variant.type->type;
82 switch (p->u.variant.type->datatype)
85 t->which = Z_Triple_internationalString;
86 t->value.internationalString = odr_malloc(o,
87 strlen(p->u.variant.value)+1);
88 strcpy(t->value.internationalString, p->u.variant.value);
91 logf(LOG_WARN, "Unable to handle value for variant %s",
92 p->u.variant.type->name);
100 * Traverse the variant children of n, constructing a supportedVariant list.
102 static int traverse_triples(data1_node *n, int level, Z_ElementMetaData *m,
107 for (c = n->child; c; c = c->next)
108 if (c->which == DATA1N_data && level)
110 if (!m->supportedVariants)
111 m->supportedVariants = odr_malloc(o, sizeof(Z_Variant*) *
113 else if (m->num_supportedVariants >= D1_VARIANTARRAY)
115 logf(LOG_WARN, "Too many variants (D1_VARIANTARRAY==%d)",
120 if (!(m->supportedVariants[m->num_supportedVariants++] =
121 make_variant(n, level, o)))
124 else if (c->which == DATA1N_variant)
125 if (traverse_triples(c, level+1, m, o) < 0)
130 static Z_ElementData *nodetoelementdata(data1_node *n, int select, int leaf,
133 Z_ElementData *res = odr_malloc(o, sizeof(*res));
137 res->which = Z_ElementData_elementNotThere;
138 res->u.elementNotThere = ODR_NULLVAL;
140 else if (n->which == DATA1N_data && (leaf || n->parent->num_children == 1))
142 switch (n->u.data.what)
145 res->which = Z_ElementData_numeric;
146 res->u.numeric = odr_malloc(o, sizeof(int));
147 *res->u.numeric = atoi(n->u.data.data);
150 res->which = Z_ElementData_string;
151 res->u.string = odr_malloc(o, n->u.data.len+1);
152 memcpy(res->u.string, n->u.data.data, n->u.data.len);
153 res->u.string[n->u.data.len] = '\0';
156 logf(LOG_WARN, "Can't handle datatype.");
162 res->which = Z_ElementData_subtree;
163 if (!(res->u.subtree = data1_nodetogr(n->parent, select, o)))
169 static Z_TaggedElement *nodetotaggedelement(data1_node *n, int select, ODR o)
171 Z_TaggedElement *res = odr_malloc(o, sizeof(*res));
176 if (n->which == DATA1N_tag)
178 if (n->u.tag.element)
179 tag = n->u.tag.element->tag;
184 * If we're a data element at this point, we need to insert a
185 * wellKnown tag to wrap us up.
187 else if (n->which == DATA1N_data || n->which == DATA1N_variant)
189 if (!(tag = data1_gettagbyname(n->root->u.root.absyn->tagset,
192 logf(LOG_WARN, "Unable to locate tag for 'wellKnown'");
200 logf(LOG_WARN, "Bad data.");
204 res->tagType = odr_malloc(o, sizeof(int));
205 *res->tagType = tag ? tag->tagset->type : 3;
206 res->tagValue = odr_malloc(o, sizeof(Z_StringOrNumeric));
207 if (tag && tag->which == DATA1T_numeric)
209 res->tagValue->which = Z_StringOrNumeric_numeric;
210 res->tagValue->u.numeric = odr_malloc(o, sizeof(int));
211 *res->tagValue->u.numeric = tag->value.numeric;
217 if (tag) /* well-known tag */
218 tagstr = tag->value.string;
219 else /* tag local to this file */
220 tagstr = n->u.tag.tag;
222 res->tagValue->which = Z_StringOrNumeric_string;
223 res->tagValue->u.string = odr_malloc(o, strlen(tagstr)+1);
224 strcpy(res->tagValue->u.string, tagstr);
226 res->tagOccurrence = 0;
227 res->appliedVariant = 0;
229 if (n->which == DATA1N_variant || (data && data->which ==
230 DATA1N_variant && data->parent->num_children == 1))
234 res->metaData = get_ElementMetaData(o);
235 if (n->which == DATA1N_tag && n->u.tag.make_variantlist)
236 if (traverse_triples(data, 0, res->metaData, o) < 0)
238 while (data && data->which == DATA1N_variant)
243 if (n->which != DATA1N_tag || !n->u.tag.no_data_requested)
244 res->appliedVariant = make_variant(data->parent, nvars-1, o);
246 if (n->which == DATA1N_tag && n->u.tag.no_data_requested)
248 res->content = odr_malloc(o, sizeof(*res->content));
249 res->content->which = Z_ElementData_noDataRequested;
250 res->content->u.noDataRequested = ODR_NULLVAL;
252 else if (!(res->content = nodetoelementdata(data, select, leaf, o)))
257 Z_GenericRecord *data1_nodetogr(data1_node *n, int select, ODR o)
259 Z_GenericRecord *res = odr_malloc(o, sizeof(*res));
262 res->elements = odr_malloc(o, sizeof(Z_TaggedElement *) * n->num_children);
263 res->num_elements = 0;
264 for (c = n->child; c; c = c->next)
266 if (c->which == DATA1N_tag && select && !c->u.tag.node_selected)
268 if (!(res->elements[res->num_elements++] =
269 nodetotaggedelement(c, select, o)))