18.104.22.168. Element: patterns
An element containing the patterns of the rule. If a <patterns> element contains multiple <pattern> elements, the class of the <rule> is assigned to every syslog message matching any of the patterns.
pattern: A pattern describing a log message. This element is also called
message pattern. For example:
<pattern>+ ??? root-</pattern>
Support for XML entities is limited, you can use only the following entities:
& < > " '. User-defined entities are not supported.
description: OPTIONAL — A description of the pattern or the log message matching the pattern.