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How do I validate input?

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How do I validate input?

The answer to this question is usually a regular expression, perhaps with auxiliary logic. See the more specific questions (numbers, email addresses, etc.) for details.

Source: Perl FAQ: Data Manipulation
Copyright: Copyright (c) 1997 Tom Christiansen and Nathan Torkington.
Next: How do I unescape a string?

Previous: Data: Strings

(Corrections, notes, and links courtesy of RocketAware.com)

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