ref: 0623c113aa1e3bb7a1173b45335ba0a4ec14fba9 dir: /test/t.split8/
{ n = split ($0, x, /[ ]+/) print n if (n != NF) print "split botch at ", NR, n, NF for (i=1; i<=n; i++) if ($i != x[i]) print "different element at ", i, x[i], $i }