My friend Shawna Scott encountered a need for regular expressions for the first time recently. I went to link her to some information, but I couldn't find a single introduction online that satisfied me. That lack seems disastrous. Regular Expressions are so important that every major programming language provides an engine for executing them, and many embed that engine directly into the parent language's syntax. They're inescapable--yet no tutorial measures up. Let's see what I can do, shall we?
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