Function xmlXPathStringFunction

Externals/LibXML/xpath.c:8776–8792

* xmlXPathStringFunction: * @ctxt: the XPath Parser context * @nargs: the number of arguments * * Implement the string() XPath function * string string(object?) * The string function converts an object to a string as follows: * - A node-set is converted to a string by returning the value of * the node in the node-set that is first in document order. * If the node-set is

 * context node as its only member.
 */
void
xmlXPathStringFunction(xmlXPathParserContextPtr ctxt, int nargs) {
    xmlXPathObjectPtr cur;

    if (ctxt == NULL) return;
    if (nargs == 0) {
    valuePush(ctxt,
	xmlXPathCacheWrapString(ctxt->context,
	    xmlXPathCastNodeToString(ctxt->context->node)));
	return;
    }

    CHECK_ARITY(1);
    cur = valuePop(ctxt);
    if (cur == NULL) XP_ERROR(XPATH_INVALID_OPERAND);
    valuePush(ctxt, xmlXPathCacheConvertString(ctxt->context, cur));
}

/**
 * xmlXPathStringLengthFunction: