#include <u.h>#include <libc.h>#include "xml.h" char *xmlvalue(Elem *ep, char *name){	Attr *ap; 	/*	 * This enables the common idiom: xmlvalue(xmllook(), name);	 */	if (ep == nil)		return nil;	for(ap = ep->attrs; ap; ap = ap->next)		if(strcmp(ap->name, name) == 0)			return ap->value;	return nil;}