Testing regular expressions with regexr.com

The website regexr.com provides a well developed tool for testing regular expression on the fly. Even better, it has a set of working patterns and lets you store your own patterns for later reuse. I highly recommend to test it: https://regexr.com/

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André Calero Valdez
Professor of Human-Computer Interaction and Usable Safety Engineering

I am insterested in studying effects human-algorithm interaction and their impact on safety.