function def(x,y) { return x ? x : y }

function s2a(s,a,   sep,    n,tmp,i,j) {
	sep = def(sep, SUBSEP)
	n=split(s,tmp,sep)
	for(i=1;i<=n;i += 2)  {
		j++
		a[tmp[i]] = tmp[i+1]
	}
	return j
}
function p(a, str, i) {
	for(i in a) print str "["i"] = " a[i]
}
function n(a,  str,order,show,   i,com) {
  str   = def(str,  "a");
  order = def(order,"-n -k 1");
  show  = def(show, "%10.3f");
  com   = "sort " order " #" rand();
  print "";
  for(i in a) 
    printf(show ": %s[ %s ]\n", a[i], str, i) | com;
  close(com);
}
function o(a,  str,order,show,  i,com) {
  str   = def(str,  "a");
  order = def(order," -k 1");
  show  = def(show, "%10s");
  com   = "sort " order " #" rand();
  print "";
  for(i in a) 
    printf("%s[ "show " ]:  %s \n", str,i,a[i] ) | com;
  close(com);
}