# cat json.txt 
{
   "menu" : {
      "header" : "SVG Viewer",
      "items" : [
         {
            "id" : "Open"
         },
         {
            "id" : "OpenNew",
            "label" : "Open New"
         },
         null,
         {
            "id" : "ZoomIn",
            "label" : "Zoom In"
         },
         {
            "id" : "OriginalView",
            "label" : "Original View"
         }
      ]
   }
}


# cat json.txt | ./json_to_paths
"menu" ➔ "header" ➔ "SVG Viewer"
"menu" ➔ "items" ➔ 0 ➔ "id" ➔ "Open"
"menu" ➔ "items" ➔ 1 ➔ "id" ➔ "OpenNew"
"menu" ➔ "items" ➔ 1 ➔ "label" ➔ "Open New"
"menu" ➔ "items" ➔ 2 ➔ null
"menu" ➔ "items" ➔ 3 ➔ "id" ➔ "ZoomIn"
"menu" ➔ "items" ➔ 3 ➔ "label" ➔ "Zoom In"
"menu" ➔ "items" ➔ 4 ➔ "id" ➔ "OriginalView"
"menu" ➔ "items" ➔ 4 ➔ "label" ➔ "Original View"


# cat json.txt | ./json_to_paths | ./paths_to_json 
{
   "menu" : {
      "header" : "SVG Viewer",
      "items" : [
         {
            "id" : "Open"
         },
         {
            "id" : "OpenNew",
            "label" : "Open New"
         },
         null,
         {
            "id" : "ZoomIn",
            "label" : "Zoom In"
         },
         {
            "id" : "OriginalView",
            "label" : "Original View"
         }
      ]
   }
}