public static String htmlspecialchars ( String input ) { if ( input == null ) { return null ; } String retval = input . replace ( "&" , "&amp;" ) ; retval = retval . replace ( "\"" , "&quot;" ) ; retval = retval . replace ( "<" , "&lt;" ) ; retval = retval . replace ( ">" , "&gt;" ) ; retval = retval . replace ( ">" , "&gt;" ) ; retval = retval . replace ( "=" , "&#61;" ) ; return retval ; }
Basic utility to encode form text - handle the safe cases