69 lines
2.8 KiB
HTML
69 lines
2.8 KiB
HTML
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{% capture tocWorkspace %}
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{% comment %}
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"...like all things liquid - where there's a will, and ~36 hours to spare, there's usually a/some way" ~jaybe
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Usage:
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{% include toc_pure_liquid.html html=content sanitize=true class="inline_toc" id="my_toc" toc_min=2 toc_max=3 %}
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Variables:
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* html (string) - the HTML of compiled markdown generated by kramdown in Jekyll
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* sanitize (bool) - when set to true, the headers will be sanitized in the TOC
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* class (string) - a CSS class assigned to the TOC
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* id (string) - an ID to assigned to the TOC
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* toc_min (int) - the minimum TOC header level to use (if not set, check page, then site, then default to 2)
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* toc_max (int) - the maximum TOC header level to use (if not set, check page, then site, then default to 3)
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Output:
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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
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{% endcomment %}
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{% capture my_toc %}{% endcapture %}
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{% assign minHeader = include.toc_min | default: 2 %}
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{% assign maxHeader = include.toc_max | default: 3 %}
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{% assign nodes = include.html | split: '<h' %}
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{% for node in nodes %}
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{% if node == "" %}
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{% continue %}
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{% endif %}
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{% assign headerLevel = node | replace: '"', '' | slice: 0, 1 %}
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{% assign headerLevel = headerLevel | times: 1 %}
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{% assign indentAmount = headerLevel | minus: minHeader | add: 1 %}
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{% assign _workspace = node | split: '</h' %}
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{% unless headerLevel >= minHeader %}
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{% continue %}
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{% endunless %}
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{% if headerLevel > maxHeader %}
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{% continue %}
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{% endif %}
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{% assign _idWorkspace = _workspace[0] | split: '"' %}
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{% assign html_id = _idWorkspace[1] %}
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{% capture _hAttrToStrip %}{{ headerLevel }} id="{{ html_id }}">{% endcapture %}
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{% assign header = _workspace[0] | replace: _hAttrToStrip, '' | remove_first: "1>" %}
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{% assign space = '' %}
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{% for i in (1..indentAmount) %}
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{% assign space = space | prepend: ' ' %}
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{% endfor %}
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{% capture my_toc %}{{ my_toc }}
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{{ space }}- [{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}](#{{ html_id }}){: class="nomunge" }{% endcapture %}
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{% endfor %}
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{% if include.class %}
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{% capture my_toc %}{:.{{ include.class }}}
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{{ my_toc | lstrip }}{% endcapture %}
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{% endif %}
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{% if include.id %}
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{% capture my_toc %}{: #{{ include.id }}}
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{{ my_toc | lstrip }}{% endcapture %}
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{% endif %}
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{% endcapture %}{% assign tocWorkspace = '' %}
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{{ my_toc | markdownify }}
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