I'm not sure I understand the question. My original reply was with regards to the dangers of using time and IP address to generate a unique string. That having been said, I'll try my best to answer your question.

There are no characters that are taboo when generating a unique string. The problem lies in generating a string that's guaranteed to be unique. Using things that shouldn't collide isn't good enough. Data::UUID guarantees no collision for the very foreseeable future. Use the solution that others have done a good job at implementing. You can have more fun in the spare time that you gain that way.

thor

Feel the white light, the light within
Be your own disciple, fan the sparks of will
For all of us waiting, your kingdom will come

In reply to Re^4: Perl : How to Create Unique String/Number? by thor
in thread Perl : How to Create Unique String/Number? by EchoAngel

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