... two-letter country codes other than.us are “foreign” (to Americans, at least); for instance, the .pl domain stands for Poland, and .au stands for Australia. 22 Although this example works at the time ... case differencesMatches perl , PERL , Perl , and so on in $data.$data =~ / perl /xi Same, except x requests extended syntaxMatches perl , PERL , Perl , and so on in $data. Because ... record, and returns different values for scalar and list contexts (details in part 2) . e Eval(uate) Evaluates new as Perl code, and substitutes its result for what RE matches. a. RE stands for...