regex for working with subdomain and to remove www

regex for working with subdomain and to remove www

References

Reference NO 1

http://stackoverflow.com/questions/15185681/regex-for-working-with-subdomain-and-to-remove-www

Reference NO 2

http://stackoverflow.com/questions/1189128/regex-to-extract-subdomain-from-url

Reference NO 3

http://www.webpronews.com/remove-the-www-subdomain-2007-02

Reference NO 4

http://snipplr.com/view/5449/

Reference NO 5

http://regexadvice.com/forums/thread/50776.aspx

Reference NO 6

http://regexlib.com/REDetails.aspx?regexp_id=1854

Reference NO 7

http://www.experts-exchange.com/Programming/Languages/Regular_Expressions/Q_26899921.html

Reference NO 8

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