OK sthen@
test your regular expressions
This module is intended to test your regular expressions. Given a
subject string and a regular expression (aka pattern), the module
not only tests whether the regular expression complete matches the
subject string, it performs a utf8::upgrade or utf8::downgrade on
the subject string and performs the tests again, if necessary.
Furthermore, given a pattern with capturing parenthesis, it checks
whether all captures are present, and in the right order. Both
named and unnamed captures are checked.
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