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PublishedAPI for packages intended to be used by Plugin and Contrib authors, or
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See also
Developing plugins,
Developer's Bible,
Technical Overview
Superclass for node types. Formatting functions are implemented by subclasses.
Checks if the current level is within bounds set by startlevel and stoplevel.
Checks if the current level is within one count to bounds set by startlevel and stoplevel. Used to properly close lists.
Might not be the best way to solve this problem.