special display of rdf:List

[VladimirAlexiev]

Continuing #10, the display of rdf:Lists is pretty ugly because it puts siblings (list members) at different ranks in the diagram, and thus obscures what is going on. Lists are involved in:

• OWL constructs (eg intersectionOf, unionOf)
• SHACL constructs (eg sh:and, sh:or)

It would be nicer to have a special display: a horizontal box with dots inside, something like

• PlantUML YAML (but horizontal):
  or JSON (pretty similar)
• dot record-based nodes:
  

This won't be easy for several reasons.

RDF processing

• most lists in the wild don't have type a rdf:List but need to be recognized by rdf:first, rdf:rest
• need special processing of the list RDF: to consume it all, produce diagram markup, and delete the triples

PlantUML

• PlantUML can mix JSON structures into class/object diagrams, eg see
  
• but those cannot refer to other class/object nodes i.e. they are trees not graphs
  (unlike standalone JSON diagrams, JSON embedded in class/object diagram never displays links, only nested tree structures)

So currently I don't see any way to do this with PlantUML. I could do it with Graphviz dot (or with https://plantuml.com/dot) but I can't afford to rework (downgrade) my tool to use dot instead of PlantUML.

Discussion at https://forum.plantuml.net/15481/possible-link-elements-from-two-jsons-with-both-jsons-embeded?show=15567#c15567