First I was trying to quickly put together a file/package that provides macros for building Nassi-Shneidermann diagrams, but after a while it gave me a head ache – literally.
So I decided to seek out a package on the internet, especially when I figured out that they are also called this, with no luck. I know of an existing package called
stuki.sty, but that is for LaTeX, and I couldn't find the
stuki.tex file that it was based on, as it mentioned by the author. Neither of these available as a package for download.
Is there any kind of package that provides similar?