Uses the HTML headers h1, h2, …, h6 (only those with valid IDs) to generate nested fragment nodes.
Public Class Methods
Create the nested fragment nodes from the content under the content node but only if there is no associated block or the block is named
Create nested fragment nodes under
sections (which can be created using parse_html_headers).
The meta info
sort_info is calculated from the base
Parse the string
content for headers
h6 and return the found, nested sections.
Only those headers are used which have an
id attribute set. The method returns a list of arrays with entries 'level, id, title, sub sections' where 'sub sections' is such a list again.