Does this regular expression mean that at least one of the following that isn't a-z:
(?=.*(?:[a-z]))
It's part of the following expression:
/^(?=[A-Za-z0-9\'\s\d\.]{2,50}$)(?=.*(?:[a-z]))[a-zA-Z0-9]+[A-Za-z0-9\'\s\.]+$/m
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Avinash Raj
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somejkuser
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No, (?=.*(?:[a-z])) means that there could be whatever but must finish with a lowercase letter.
This regex means:
/^(?=[A-Za-z0-9\'\s\d\.]{2,50}$)(?=.*(?:[a-z]))[a-zA-Z0-9]+[A-Za-z0-9\'\s\.]+$/m
Match the line that starts with 2 to 50 alphanumeric, single quote, spaces or a dot, and then follows with lower case letter, and continues with alphanumerics and must ends followed by alphanumerics, spaces, single quote or dot.
Here you can see a better graphical approach for your regex:
Actually, this can be improved as:
/^(?=[A-Za-z\d'\s.]{2,50}$)(?=.*[a-z])[a-zA-Z\d]+[A-Za-z\d'\s.]+$/m
Federico Piazza
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can you please elaborate on "AND follows with lower case letter," – somejkuser Mar 25 '15 at 23:23
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@jkushner I enphatized how your patterns were used lol, like "start with A and then x and then blablabla". Will update it – Federico Piazza Mar 25 '15 at 23:31
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I understand. So what is the exact purpose of having the non-capturing group in here? – somejkuser Mar 25 '15 at 23:34
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@jkushner nothing, it has no sense. That's why I added `this can be improved as` part. – Federico Piazza Mar 25 '15 at 23:43