|  | awk ' # reroman | 
|  | #   Output: string (tab) arab1            [(space) arab2] | 
|  | #   Input:  string (tab) arab1 or roman1  [(space) arab2 or roman2] | 
|  |  | 
|  | BEGIN	{ FS = OFS = "\t" | 
|  | # set a[1] = "i", a[2] = "ii", ... | 
|  | s =   "i ii iii iv v vi vii viii ix x" | 
|  | s = s " xi xii xiii xiv xv xvi xvii xviii xix xx" | 
|  | s = s " xxi xxii xxiii xxiv xxv xxvi xxvii xxviii xxix xxx" | 
|  | split(s, a, " ") | 
|  | } | 
|  | $2 < 0	{ n = split($2, b, " ") | 
|  | for (i = 1; i <= n; i++) { | 
|  | if (b[i] >= 0) continue | 
|  | j = 1000 + b[i] | 
|  | if (j in a) b[i] = a[j] | 
|  | else print "reroman: bad number: " $0  | "cat 1>&2" | 
|  | } | 
|  | $2 = b[1] | 
|  | if (n > 1) $2 = b[1] " " b[2] | 
|  | } | 
|  | { print } | 
|  | ' $* |