Function xmlFreeDocElementContent

ThirdParty/libxml2/vtklibxml2/valid.c:914–971

* xmlFreeDocElementContent: * @doc: the document owning the element declaration * @cur: the element content tree to free * * Free an element content structure. The whole subtree is removed. */

 * Free an element content structure. The whole subtree is removed.
 */
void
xmlFreeDocElementContent(xmlDocPtr doc, xmlElementContentPtr cur) {
    xmlDictPtr dict = NULL;
    size_t depth = 0;

    if (cur == NULL)
        return;
    if (doc != NULL)
        dict = doc->dict;

    while (1) {
        xmlElementContentPtr parent;

        while ((cur->c1 != NULL) || (cur->c2 != NULL)) {
            cur = (cur->c1 != NULL) ? cur->c1 : cur->c2;
            depth += 1;
        }

	switch (cur->type) {
	    case XML_ELEMENT_CONTENT_PCDATA:
	    case XML_ELEMENT_CONTENT_ELEMENT:
	    case XML_ELEMENT_CONTENT_SEQ:
	    case XML_ELEMENT_CONTENT_OR:
		break;
	    default:
		xmlErrValid(NULL, XML_ERR_INTERNAL_ERROR,
			"Internal: ELEMENT content corrupted invalid type\n",
			NULL);
		return;
	}
	if (dict) {
	    if ((cur->name != NULL) && (!xmlDictOwns(dict, cur->name)))
	        xmlFree((xmlChar *) cur->name);
	    if ((cur->prefix != NULL) && (!xmlDictOwns(dict, cur->prefix)))
	        xmlFree((xmlChar *) cur->prefix);
	} else {
	    if (cur->name != NULL) xmlFree((xmlChar *) cur->name);
	    if (cur->prefix != NULL) xmlFree((xmlChar *) cur->prefix);
	}
        parent = cur->parent;
        if ((depth == 0) || (parent == NULL)) {
            xmlFree(cur);
            break;
        }
        if (cur == parent->c1)
            parent->c1 = NULL;
        else
            parent->c2 = NULL;
	xmlFree(cur);

        if (parent->c2 != NULL) {
	    cur = parent->c2;
        } else {
            depth -= 1;
            cur = parent;
        }
    }
}