+
−#!/hackenv/bin/shebang_args_or_input python
+
−
+
−import re, sys, unicodedata as U
+
−def tr(c):
+
−    m = re.match(r'(.*\bLATIN\b.*\bLETTER )([A-Z])\b(.*)', U.name(c, ''))
+
−    if m:
+
−        p, q, r = m.groups()
+
−        n = ord(q) - ord('A')
+
−        try:
+
−            return U.lookup(p + chr(ord('A') + (n + 13) % 26) + r)
+
−        except KeyError:
+
−            return c
+
−    return c
+
−
+
−def tr2(c):
+
−    d = tr(c)
+
−    if d != c:
+
−        return d
+
−    else:
+
−        cs = [unichr(int(x, 16)) for x in U.decomposition(c).split()]
+
−        ds = [tr(x) for x in cs]
+
−        if cs != ds:
+
−            return u''.join(ds)
+
−        else:
+
−            return c
+
−
+
−for c in unicode(sys.stdin.read(), 'utf8'):
+
−    sys.stdout.write(tr2(c).encode('utf8'))
+
−