I am struggling with recursive for loops.

[Tory Berra]

Documenation:

http://jinja.pocoo.org/docs/dev/templates/#for

If you scroll down to "recursive" you will see an example. I copy/pasted that code, and I have data that looks identical to the data it wants. But I get this:

[Line 24, Column 37] expected block end in for statement

[Tory Berra]

DATA:

[

  {

    "id": 1,

    "User_id": 1,

    "ForumThread_id": 1,

    "ForumPost_id": null,

    "post": "Heh.",

    "createdAt": 1456765537963 

  },

  {

    "id": 2,

    "User_id": 2,

    "ForumThread_id": 1,

    "ForumPost_id": null,

    "post": "I love this site!",

    "createdAt": 1456765537963

  },

  {

    "id": 3,

    "User_id": 3,

    "ForumThread_id": 1,

    "ForumPost_id": null,

    "post": "Hello?",

    "createdAt": 1456765537963,

    "children": [

      {

        "id": 4,

        "User_id": 2,

        "ForumThread_id": 1,

        "ForumPost_id": 3,

        "post": "Yes where here.",

        "createdAt": 1456765537963,

        "children": [

          {

            "id": 5,

            "User_id": 1,

            "ForumThread_id": 1,

            "ForumPost_id": 4,

            "post": "Banned for discussing secrets.",

            "createdAt": 1456765537963

          }

        ]

      }

    ]

  }

]

[Tory Berra]

Nunjucks code

<ul class="sitemap">
{%- for item in thread.posts recursive %}
    <li><a>{{ item.post }}</a>
    {%- if item.children -%}
        <ul class="submenu">{{ loop(item.children) }}</ul>
    {%- endif %}</li>
{%- endfor %}
</ul>

[Tory Berra]

So turns out this isnt even a supported feature of Nunjucks. I thought Nunjucks was a direct port of Jinja 2?  This seems like a really powerful feature to not have in the library and im going through some real trouble trying to build a custom tag with the terrible parser API documentation. It would be much appreciated for someone who already understands and knows the Nunjucks codebase to allow a for loop to be called again and passing it new data when a global function "call(newData)" is seen inside the for loop.