get("#349") -- table functions

-- without bridge stuff & invalidated
function printShortenedReferenceTree(id, indent, seen, result)
  if seen[id] then
    table.insert(result, indent..id.." (see above)")
  else
    title = getSnippetTitle(id)
    if not (title:find("^Need bridge ") or title:find("^A bridge ") or title:find("^A master bridge ") or hasNTTitle("Invalidate "..id)) then
      table.insert(result, indent..id.. " - "..title)
      seen[id] = true
      
      local refs = getTitleReferences(id)
      --print("Refs: "..tableToString(refs))
      for r in all(refs) do
        printShortenedReferenceTree(r, indent.."  ", seen, result)
      end
    end
  end
end

Began life as a copy of #536