Function xmlXPtrAdvanceNode

ThirdParty/libxml2/vtklibxml2/xpointer.c:2251–2290

* xmlXPtrAdvanceNode: * @cur: the node * @level: incremented/decremented to show level in tree * * Advance to the next element or text node in document order * TODO: add a stack for entering/exiting entities * * Returns -1 in case of failure, 0 otherwise */

 * Returns -1 in case of failure, 0 otherwise
 */
xmlNodePtr
xmlXPtrAdvanceNode(xmlNodePtr cur, int *level) {
next:
    if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL))
	return(NULL);
    if (cur->children != NULL) {
        cur = cur->children ;
	if (level != NULL)
	    (*level)++;
	goto found;
    }
skip:		/* This label should only be needed if something is wrong! */
    if (cur->next != NULL) {
	cur = cur->next;
	goto found;
    }
    do {
        cur = cur->parent;
	if (level != NULL)
	    (*level)--;
        if (cur == NULL) return(NULL);
        if (cur->next != NULL) {
	    cur = cur->next;
	    goto found;
	}
    } while (cur != NULL);

found:
    if ((cur->type != XML_ELEMENT_NODE) &&
	(cur->type != XML_TEXT_NODE) &&
	(cur->type != XML_DOCUMENT_NODE) &&
	(cur->type != XML_HTML_DOCUMENT_NODE) &&
	(cur->type != XML_CDATA_SECTION_NODE)) {
	    if (cur->type == XML_ENTITY_REF_NODE) {	/* Shouldn't happen */
		goto skip;
	    }
	    goto next;
	}
    return(cur);
}

/**
 * xmlXPtrAdvanceChar: