Optional
noIf true, do not output text for child nodes. The comment function will handle that. If true, ensure that the text returned by the comment function ends in a newline.
Optional
commentWhen commenting on this tag, if this function returns a string, it will be appended after the tag number and a colon.
The tag to comment on.
Options.
How deep are we in indentation clicks so far?
Apply this to a TagDecoder function to get commenting support.