\w matches different things depending on your locale. If you have a German locale, for instance, it will match ß.

The danger of using perl's shortcut character classes, as was pointed out to me by DrHyde.

"Cogito cogito ergo cogito sum - I think that I think, therefore I think that I am." Ambrose Bierce

In reply to Re^3: Security techniques every programmer should know by kutsu
in thread Security techniques every programmer should know by Juerd

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