class Asciidoctor::Extensions::Treeprocessor

Treeprocessors must extend Asciidoctor::Extensions::Treeprocessor.
QUESTION should the treeprocessor get invoked after parse header too?
Treeprocessor.
Asciidoctor invokes the process method on an instance of each registered
and its child Node objects.
parsed into an abstract syntax tree, as represented by the Document object
Public: Treeprocessors are run on the Document after the source has been