Regex Cheat Sheet

Found this really useful regex cheatsheet.
Checkout their full cheatsheet at Rexegg Cheatsheet

Character	Legend	Example	Sample Match
\t	Tab	T\t\w{2}	T     ab
\r	Carriage return character	see below
\n	Line feed character	see below
\r\n	Line separator on Windows	AB\r\nCD	AB CD
\N	Perl, PCRE (C, PHP, R…): one character that is not a line break	\N+	ABC
\h	Perl, PCRE (C, PHP, R…), Java: one horizontal whitespace character: tab or Unicode space separator
\H	One character that is not a horizontal whitespace
\v	.NET, JavaScript, Python, Ruby: vertical tab
\v	Perl, PCRE (C, PHP, R…), Java: one vertical whitespace character: line feed, carriage return, vertical tab, form feed, paragraph or line separator
\V	Perl, PCRE (C, PHP, R…), Java: any character that is not a vertical whitespace
\R	Perl, PCRE (C, PHP, R…), Java: one line break (carriage return + line feed pair, and all the characters matched by \v)