The documentation that you are reading right now, can be generated by running doxygen in this directory without arguments. The generated documentation can subsequently be browsed from internal-docs/html/index.html.
@returns and @param paragraphs are terminated with a period.tt HTML tag.@author tag, specifying who is the main author of it.@include or @dontinclude.@c or the tt HTML tag:NaN true and false, when referred to as boolean valuesitem\() and xs:string. Remember to use the tt HTML tag in these cases in order to include non-trivial characters such as parantesesnull stderr, stdout, and stdin The current Doxygen comments does in some cases not adhere to this, but the idea is to harmonize in that direction over time.
PatternistSDK, located in the test sources, is documented in the PatternistSDK Doxygen module.