2 # Input: string (tab) [arab or roman]
3 # Output: string (tab) [arab]
5 # Roman numeral n is replaced by arab n-1000 (e.g., iii -> -997)
6 BEGIN { FS = OFS = "\t"
7 # set a["i"] = 1, a["ii"] = 2, ...
8 s = "i ii iii iv v vi vii viii ix x"
9 s = s " xi xii xiii xiv xv xvi xvii xviii xix xx"
10 s = s " xxi xxii xxiii xxiv xxv xxvi xxvii xxviii xxix xxx"
12 for (i = 1; i <= n; i++) a[b[i]] = i
14 $2~/^[ivxlc]+$/ { if ($2 in a) $2 = -1000 + a[$2]
15 else print "deroman: bad number: " $0 | "cat 1>&2"