{% capture tocWorkspace %}

{% comment %}

"...like all things liquid - where there's a will, and ~36 hours to spare, there's usually a/some way" ~jaybe

Usage:

{% include toc_pure_liquid.html html=content sanitize=true class="inline_toc" id="my_toc" toc_min=2 toc_max=3 my_name="unnamed" %}

Variables:

* html (string) - the HTML of compiled markdown generated by kramdown in Jekyll

* sanitize (bool) - when set to true, the headers will be sanitized in the TOC

* class (string) - a CSS class assigned to the TOC

* id (string) - an ID to assigned to the TOC

* toc_min (int) - the minimum TOC header level to use (if not set, check page, then site, then default to 2)

* toc_max (int) - the maximum TOC header level to use (if not set, check page, then site, then default to 3)

* page_name (string) - the URL of the page

Output:

An unordered list representing the table of contents of a markdown block. This snippet will only generate the table of contents and will NOT output the markdown given to it

{% endcomment %}

{% capture my_toc %}{% endcapture %}

{% assign minHeader = include.toc_min | default: 2 %}

{% assign maxHeader = include.toc_max | default: 3 %}

{% assign my_name = include.page_name | default: "unnamed" %}

{% assign nodes = include.html | split: '<h' %}

{% for node in nodes %}

{% if node == "" %}

{% continue %}

{% endif %}

{% assign headerLevel = node | replace: '"', '' | slice: 0, 1 %}

{% assign headerLevel = headerLevel | times: 1 %}

{% assign indentAmount = headerLevel | minus: minHeader | add: 1 %}

{% assign _workspace = node | split: '</h' %}

{% unless headerLevel >= minHeader %}

{% continue %}

{% endunless %}

{% if headerLevel > maxHeader %}

{% continue %}

{% endif %}

{% assign _idWorkspace = _workspace[0] | split: '"' %}

{% assign html_id = _idWorkspace[1] %}

{% capture _hAttrToStrip %}{{ headerLevel }} id="{{ html_id }}">{% endcapture %}

{% assign header = _workspace[0] | replace: _hAttrToStrip, '' | remove_first: "1>" %}

{% assign space = '' %}

{% for i in (1..indentAmount) %}

{% assign space = space | prepend: ' ' %}

{% endfor %}

{% capture my_toc %}{{ my_toc }}

{{ space }}- [{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}]({{ my_name }}#{{ html_id }}){: class="nomunge" }{% endcapture %}

{% endfor %}

{% if include.class %}

{% capture my_toc %}{:.{{ include.class }}}

{{ my_toc | lstrip }}{% endcapture %}

{% endif %}

{% if include.id %}

{% capture my_toc %}{: #{{ include.id }}}

{{ my_toc | lstrip }}{% endcapture %}

{% endif %}

{% endcapture %}{% assign tocWorkspace = '' %}

{{ my_toc | markdownify }}