Is this a quiz?

The regex, itself, is an example of an IEEE Std 1003.1, also known as POSIX character class syntax; see perlre, which states [:print:] is "Any alphanumeric or punctuation (special) character or the space character." The [^] syntax is normal regex syntax, so in this case, the regex will return true if any character which is not in the list of what [:print:] considers "printable" is found either array element.

The @{...}...appears to be an (possibly incorrectly written) dereferencing; I don't think it's relevant to the question.

emc

Any New York City or Connecticut area jobs? I'm currently unemployed.

There are some enterprises in which a careful disorderliness is the true method.

—Herman Melville

In reply to Re: Any idea what this does by swampyankee
in thread Any idea what this does by Anonymous Monk

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