1. would be easy to implement (generate all strings, match) - but is probably much too slow (just counting the letters and numbers would give you 26+26+10 different characters at each position of your string ...

Only 62 letters and numbers? That's so limiting.... That doesn't even cover most European languages. Currently, Perl has thousands of characters that are considered letters and digits.

In reply to Re^2: Analysis of Regular Expressions by JavaFan
in thread Analysis of Regular Expressions by PetaMem

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