Textual Content  

Because of its support for the Unicode character set, XML supports a range of characters, including letters, digits, punctuation, and symbols. Most control characters and Unicode compatibility characters are not allowed. For a complete list of character classes, see Appendix B of the XML specification.

Note

Because XML relies on <, >, and & to delimit markup, you should represent these characters using the character and entity references described in the following topic, or confine them to CDATA sections.

See Also

Concepts

CDATA Sections [XML Standards]
Character and Entity References [XML Standards]