zahlifat.py

import string
import sys
import re

if __name__ == "__main__":
	args = sys.argv[1:]
	decode = len(args) >= 2 and "d" == args[0]
	if decode:
		reDec = re.compile("(\d+)\*([^\d\*]*)")
		for s in args[1:]:
			r = ""
			for m in reDec.finditer(s):
				n = int(m.group(1))
				if n > len(string.ascii_lowercase):
					continue
				r += string.ascii_lowercase[n]
				if m.group(2):
					r += m.group(2)
			print(r)
	else:
		for s in args[1:]:
			r = ""
			for c in s:
				i = string.ascii_lowercase.find(c.lower())
				if i == -1:
					r += c
					continue
				r += "{0}*".format(i)
			print(r)