I think we understand how your input works. But what are you looking for for output? Do you want a graph like what TiddlyMaps draws? Do you want something like what I earlier proposed for breadcrumbs?:
OnePath.json (983 Bytes)
Are you simply looking to collect the data, and if so, what’s the output format? I wrote a JS implementation to collect this information as an array of arrays of tiddler names, but that format isn’t so useful in TW. (It’s also based on tags, not links, but that’s an easy switch.) And it collected all paths from certain root nodes
One other concern: any realistic techniques to do this through links are going to have to deal with the fact that only hard links are readily available to work with.