Function xmlSchemaCheckCVCIDCKeyRef

ThirdParty/libxml2/vtklibxml2/xmlschemas.c:23700–23844

* xmlSchemaCheckCVCIDCKeyRef: * @vctxt: the WXS validation context * @elemDecl: the element declaration * * Check the cvc-idc-keyref constraints. */

 * Check the cvc-idc-keyref constraints.
 */
static int
xmlSchemaCheckCVCIDCKeyRef(xmlSchemaValidCtxtPtr vctxt)
{
    xmlSchemaIDCMatcherPtr matcher;
    xmlSchemaPSVIIDCBindingPtr bind;

    matcher = vctxt->inode->idcMatchers;
    /*
    * Find a keyref.
    */
    while (matcher != NULL) {
	if ((matcher->idcType == XML_SCHEMA_TYPE_IDC_KEYREF) &&
	    matcher->targets &&
	    matcher->targets->nbItems)
	{
	    int i, j, k, res, nbFields, hasDupls;
	    xmlSchemaPSVIIDCKeyPtr *refKeys, *keys;
	    xmlSchemaPSVIIDCNodePtr refNode = NULL;
	    xmlHashTablePtr table = NULL;

	    nbFields = matcher->aidc->def->nbFields;

	    /*
	    * Find the IDC node-table for the referenced IDC key/unique.
	    */
	    bind = vctxt->inode->idcTable;
	    while (bind != NULL) {
		if ((xmlSchemaIDCPtr) matcher->aidc->def->ref->item ==
		    bind->definition)
		    break;
		bind = bind->next;
	    }
	    hasDupls = (bind && bind->dupls && bind->dupls->nbItems) ? 1 : 0;
	    /*
	    * Search for a matching key-sequences.
	    */
	    if (bind) {
		table = xmlHashCreate(bind->nbNodes * 2);
		for (j = 0; j < bind->nbNodes; j++) {
		    xmlChar *value;
		    xmlIDCHashEntryPtr r, e;
		    keys = bind->nodeTable[j]->keys;
		    xmlSchemaHashKeySequence(vctxt, &value, keys, nbFields);
		    e = xmlMalloc(sizeof *e);
		    e->index = j;
		    r = xmlHashLookup(table, value);
		    if (r) {
			e->next = r->next;
			r->next = e;
		    } else {
			e->next = NULL;
			xmlHashAddEntry(table, value, e);
		    }
		    FREE_AND_NULL(value);
		}
	    }
	    for (i = 0; i < matcher->targets->nbItems; i++) {
		res = 0;