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Regular Expression
(?<scheme>[a-zA-Z][a-zA-Z0-9\+\-\.]*):(?://(?:(?<username>(?:[a-zA-Z0-9_~!&',;=\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))+):?(?:[a-zA-Z0-9_~!&',;=\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*@)?(?<host>(?:[a-zA-Z0-9_~!&',;=\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*)(?::(?<port>[0-9]*))?(?<path>(?:/(?:[a-zA-Z0-9_~!&',;=:@\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*)*)|(?<path>/(?:(?:[a-zA-Z0-9_~!&',;=:@\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))+(?:/(?:[a-zA-Z0-9_~!&',;=:@\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*)*)?)|(?<path>(?:[a-zA-Z0-9_~!&',;=:@\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))+(?:/(?:[a-zA-Z0-9_~!&',;=:@\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*)*))?(?:\?(?<query>(?:[a-zA-Z0-9_~!&',;=:@/?\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*))?(?:\#(?<fragment>(?:[a-zA-Z0-9_~!&',;=:@/?\.\-\$\*\+]|(?:%[0-9a-fA-F]{2}))*))?

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