Problem

As much as possible, communications protocol delimiters should be allowed within messages.

Solution

Use an "escaping" mechanism to indicate that a value should be interpreted as message content, so the parser should not inspect it for protocol delimiters.

Implementation

Wrap all appropriate message values in XML CDATA tags. Specifically test to make sure >, <, =, ", ', can be included in attribute names and values, message names, and room ids.