Function xmlReconciliateNs

ThirdParty/libxml2/vtklibxml2/tree.c:6388–6525

* xmlReconciliateNs: * @doc: the document * @tree: a node defining the subtree to reconciliate * * This function checks that all the namespaces declared within the given * tree are properly declared. This is needed for example after Copy or Cut * and then paste operations. The subtree may still hold pointers to * namespace declarations outside the subtree or invalid/masked. As much * as

 * Returns 0 on success or -1 in case of error.
 */
int
xmlReconciliateNs(xmlDocPtr doc, xmlNodePtr tree) {
    xmlNsCache *cache = NULL;
    int sizeCache = 0;
    int nbCache = 0;

    xmlNsPtr n;
    xmlNodePtr node = tree;
    xmlAttrPtr attr;
    int ret = 0, i;

    if ((node == NULL) || (node->type != XML_ELEMENT_NODE)) return(-1);
    if (node->doc != doc) return(-1);
    while (node != NULL) {
        /*
	 * Reconciliate the node namespace
	 */
	if (node->ns != NULL) {
	    for (i = 0; i < nbCache; i++) {
	        if (cache[i].oldNs == node->ns) {
		    node->ns = cache[i].newNs;
		    break;
		}
	    }
	    if (i == nbCache) {
	        /*
		 * OK we need to recreate a new namespace definition
		 */
		n = xmlNewReconciledNs(tree, node->ns);
		if (n == NULL) {
                    ret = -1;
                } else {
		    /*
		     * check if we need to grow the cache buffers.
		     */
		    if (sizeCache <= nbCache) {
                        xmlNsCache *tmp;
                        size_t newSize = sizeCache ? sizeCache * 2 : 10;

			tmp = xmlRealloc(cache, newSize * sizeof(tmp[0]));
		        if (tmp == NULL) {
                            ret = -1;
			} else {
                            cache = tmp;
                            sizeCache = newSize;
                        }
		    }
		    if (nbCache < sizeCache) {
                        cache[nbCache].newNs = n;
                        cache[nbCache++].oldNs = node->ns;
                    }
                }
		node->ns = n;
	    }
	}
	/*
	 * now check for namespace held by attributes on the node.
	 */