Forgive me monks, for i have sinned. It has been many months since my last visit to the monastery...
So, here's a question for anyone wiser than me (read: everybody here) - if I have a string, let's say $string = abcdef
, and I want to search a textfile, I can do a simple m//
But, what if i want to be able to match any 5 out of the 6 characters in string? i.e., the following would all be desired matches to the pattern:
but none of the following would match:
How would I set up that as a search pattern, or a regexp? And, of course, the $64,000 twist to the question becomes, if $string is user input, and rather than a strict 5/6 match, the user wants to define the stringency of the match (i.e., allow $n non-matching characters in $string, how could I do that?
I know that I could laboriously go through and search for each of the entries in that first code block above, but I'd prefer to automate this task, and the length of $string may regularly be 10-15 characters long, with up to 5 non-matching characters permitted per search. That becomes a large quantity of different combinations to throw in to the search... Any ideas on how to do it better?
Any and all help would be greatly appreciated,