User:IMSoP/parse t t.pl

This is a perl script I made to eliminate formatting inconsistencies, and fill in missing information, in Twin towns. Specifically, it parses every listing to make sure that there are entries for both ends of the twinning (until I made it, more than 50% of the entries were under UK, which is of course impossible; they are all twinned with somewhere, which is therefore twinned back with them).