Am 07.04.2010 um 17:42 schrieb Aristotle Pagaltzis: > * Michael Ludwig <michael.lud...@xing.com> [2010-04-07 15:00]: >> >> • utf8::upgrade before doing lc/lcfirst/uc >> • utf8::upgrade before doing case insensitive matching >> • utf8::upgrade before matching predefined character classes >> like w and s >> >> Can anyone enlighten me on the background of using >> utf8::upgrade here? > > Perl versions up to the upcoming 5.12.0 (I think) are buggy in > that they apply ISO-8859-1 semantics to downgraded strings and > Unicode semantics to upgraded strings, even when they contain the > same data. By upgrading your strings, you make sure that you get > Unicode semantics consistently.
Thanks, Aristotle - that makes sense to me. -- Michael.Ludwig (#) XING.com
