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Regular Expression!!

^Matches the beginning of a line
$Matches the end of the line
.Matches any character
\sMatches whitespace
\SMatches any non-whitespace character
*Repeats a character zero or more times
*?Repeats a character zero or more times (non-greedy)
+Repeats a character one or more times
+?Repeats a character one or more times (non-greedy)
[aeiou]Matches a single character in the listed set
[^XYZ]Matches a single character not in the listed set
[a-z0-9]The set of characters can include a range
(Indicates where string extraction is to start
)Indicates where string extraction is to end

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