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External Data Source

Source

Regular Expression
^(http|https|ftp|ftps)\://([a-zA-Z0-9\-]+)(\.[a-zA-Z0-9\-]+)*(\.[a-zA-Z]{2,3})(:[0-9]*)?(/[a-zA-Z0-9_\-]*)*(\.?[a-zA-Z0-9#]{1,10})?([\?][a-zA-Z0-9\-\._\,\'\+&%\$#\=~]*)?$