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External Data Source

Source

Regular Expression
((http|ftp|https|ftps):\/\/)?[\w\-_\.]+\.(([0-9]{1,3})|([a-zA-Z]{2,3})|(aero|arpa|asia|coop|info|jobs|mobi|museum|name|travel))+(:[0-9]+)?\/?(([\w\-\.,@^%:/~\+#]*[\w\-\@^%/~\+#])((\?[a-zA-Z0-9\[\]\-\._+%\$#\=~',]*=[a-zA-Z0-9\[\]\-\._+%\$#\=~',]*)+(&[a-zA-Z0-9\[\]\-\._+%\$#\=~',]*=[a-zA-Z0-9\[\]\-\._+%\$#\=~',]*)*)?)?