in reply to Manipulating multiple matches

The code points for ASCII only go from 0 up to 127 inclusive. There are no ASCII characters 15123, 32714, 04271. Perhaps you mean Unicode equivalents, but then the question arises, in which encoding? If you have a modern enough Perl, and you want UTF-8 encoding, chr 32714 etc will give you that. Otherwise, use of one of the Encode modules (which come with perl 5.8) might help you.

Abigail