Compile all values into a single comma-separated string.

CompileStrings compiles all values into a single comma-separated string.

GetWriter removes and answers a new string writer from the global pool.

MqttMatch answers true if the topic matches the pattern according to MQTT rules: * Pattern is a slash-separated hierarchy.

PutWriter places a writer into the global pool.

--------------------------------------------------------- Pool interface describes an object that gives and receives ownership of string writers.