Regular Expressions (Regex) are a special syntax for identifying one string of characters and/or numbers inside of a larger string. The special syntax for regular expressions is as follows:

Char	Description
^	Start of Input
a,b	Matches exact character
.	Matches any one character
\d	Matches any digit (\D not)
\w	Matches any letter (\W not)
\s	Matches whitespace char (\S not)
\b	Word Boundary (\B not)
\	Matches next exact char (escape)
[...]	Matches a character from a set
[^...]	Matches a character not in set
(...)	Creates a "capture group"
(?:...)	Non-"capture" group
\1, \2	Matches a prev "capture group"
(?=...)	Look ahead (?! not)
(?<...)	Look behind (?! not)
*	Matches prev 0 or more times
+	Matches prev 1 or more times
{n}	Matches prev n times
{x,y}	Matches prev x-y times