When creating XML nodes with XML elements, the name of the node can be escaped according to ANSI specification 9075-14, paragraph 4.10.3. The ANSI specification provides two modes of escaping:

TDV Server uses partial escaping. Only alphabetical characters and underscore can be leading characters. All other characters are converted.

Partially escaped identifiers escape all nonleading numerical characters except minus (-), underscore (_), and colon (:) with the format _xDDDD_ where DDDD is the hexadecimal equivalent of the ASCII character. For example, the ampersand character (&) is converted to _x0026_.

This results in <_x0032_9>text</_x0032_9>

This results in <_x003A_>black</_x003A_>

This results in <a:->black<a:->