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regex for URL Validation

807605Jun 25 2007 — edited Jun 25 2007

HI I am validating a field which takes a url as input from the user.So the url may contain http,https,ftp links or the user may specify the ip address.So can anyone please help me out to create a suitable regex for that.I just need to check the validness of link and not that it exists or not.

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Locked on Jul 23 2007

Added on Jun 25 2007

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