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External Data Source

Source

Regular Expression
^(?:(?<scheme>[a-z]+):\/\/)?(?:(?<usern>[a-z0-9_.]*)(?::(?<passw>[a-z0-9_.]*))?@)?(?<domain>(?:(?:[a-z][a-z0-9_-]+\.?)+|[0-9]{1,3}(?:\.[0-9]{1,3}){3}))(?::(?<port>[0-9]+))?(?<path>(?:\/[.%a-z0-9_]*)+)?(?:\?(?<query>(?:&?[][a-z0-9_]+(?:\=?[a-z0-9_;]*)?)+))?(?:#(?<fragment>[a-z0-9_]+))?$