#include <u.h>#include <libc.h>#include "xml.h" Attr *xmlattr(Xml *xp, Attr **root, Elem *parent, char *name, char *value){	Attr *ap, *t; 	USED(xp);	if((ap = xmlcalloc(xp, sizeof(Attr), 1)) == nil)		sysfatal("no memory - %r\n");	if(*root == nil){		*root = ap;	}	else{		for (t = *root; t->next; t = t->next)			continue;		t->next = ap;	}	ap->parent = parent; 	if(name)		if((ap->name = xmlstrdup(xp, name, 1)) == nil)			sysfatal("no memory - %r\n"); 	if(value)		if((ap->value = xmlstrdup(xp, value, 0)) == nil)			sysfatal("no memory - %r\n");	return ap;}