Shortcuts for Character Ranges in Perl

You're programming along in Perl and want to use a code shortcut to represent anything from a number to a non-number to any letter or number. You're in luck, because the following table gives you the code, shows you what it’s a shortcut for, and describes it.

Code	Replaces	Description
\d	[0..9]	Any digit
\w	[a-zA-Z_0-9]	Any alphanumeric character
\s	[ tnrf]	A whitespace character
\D	^[0..9]	Any non-digit
\W	^[a-zA-Z_0-9]	Any non-alphanumeric character
\S	^[ tnrf]	A non-whitespace character

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