in reply to Re^4: Nonrepeating characters in an RE (simple)
in thread Nonrepeating characters in an RE

I agree with your interpretation. It seems to imply that the length of the target must match the length of the 'template'. It sounds like a tool for solving Jumble by searching a dictionary for valid words that match the given pattern.
Bill
  • Comment on Re^5: Nonrepeating characters in an RE (simple)

In Section Seekers of Perl Wisdom