Character data (also known as CDATA) is a special form of textual data. In HTML and XML, it is used both for attribute values and as textual content of elements. User agents process text in the form of character data in the following way: * Character entities are replaced with their corresponding characters. * Carriage returns and tab characters are each replaced with a single space. * Leading and trailing white space may be ignored (decision is up to the user agent). For example, the CDATA "éé twee drie" is interpreted as "één twee drie".