Not to mention that if you "learn" regular expressions with this library, you'll become an expert at this library and useless with "regular expressions", which

Not to mention that if you "learn" regular expressions with this library, you'll become an expert at this library and useless with "regular expressions", which is just one more example of things that can result in your inability to learn and use other languages effectively. Regular expressions are a pain, but I strongly believe that you shouldn't use abstractions unless you have at least a functional understanding of what you're abstracting.