I think it’s matching all control characters (not sure what “all” might be) but I can’t be certain, nor can I find it in any documentation other than some musings in a Perl forum. Does anyone know?
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I think it’s matching all control characters (not sure what “all” might be) but I can’t be certain, nor can I find it in any documentation other than some musings in a Perl forum. Does anyone know?
From the documentation of
Pattern:That is, it matches any character with hexadecimal value 00 through 1F or 7F.
The Wikipedia article on control characters lists each character and what it’s used for if you’re interested.