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85 lines
3.9 KiB
HTML
85 lines
3.9 KiB
HTML
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{% capture tocWorkspace %}
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{% comment %}
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Version 1.0.5
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https://github.com/allejo/jekyll-toc
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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.html html=content sanitize=true class="inline_toc" id="my_toc" h_min=2 h_max=3 %}
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Parameters:
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* html (string) - the HTML of compiled markdown generated by kramdown in Jekyll
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Optional Parameters:
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* sanitize (bool) : false - when set to true, the headers will be stripped of any HTML 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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* h_min (int) : 1 - the minimum TOC header level to use; any header lower than this value will be ignored
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* h_max (int) : 6 - the maximum TOC header level to use; any header greater than this value will be ignored
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* ordered (bool) : false - when set to true, an ordered list will be outputted instead of an unordered list
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* item_class (string) : '' - add custom class for each list item; has support for '%level%' placeholder, which is the current heading level
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* baseurl (string) : '' - add a base url to the TOC links for when your TOC is on another page than the actual content
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Output:
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An ordered or 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 orderedList = include.ordered | default: false %}
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{% assign minHeader = include.h_min | default: 1 %}
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{% assign maxHeader = include.h_max | default: 6 %}
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{% assign nodes = include.html | split: '<h' %}
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{% assign firstHeader = true %}
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{% capture listModifier %}{% if orderedList %}1.{% else %}-{% endif %}{% endcapture %}
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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 | times: 1 %}
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{% if headerLevel < minHeader or headerLevel > maxHeader %}
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{% continue %}
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{% endif %}
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{% if firstHeader %}
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{% assign firstHeader = false %}
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{% assign minHeader = headerLevel %}
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{% endif %}
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{% assign indentAmount = headerLevel | minus: minHeader | add: 1 %}
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{% assign _workspace = node | split: '</h' %}
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{% assign _idWorkspace = _workspace[0] | split: 'id="' %}
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{% assign _idWorkspace = _idWorkspace[1] | split: '"' %}
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{% assign html_id = _idWorkspace[0] %}
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{% capture _hAttrToStrip %}{{ _workspace[0] | split: '>' | first }}>{% endcapture %}
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{% assign header = _workspace[0] | replace: _hAttrToStrip, '' %}
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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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{% unless include.item_class == blank %}
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{% capture listItemClass %}{:.{{ include.item_class | replace: '%level%', headerLevel }}}{% endcapture %}
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{% endunless %}
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{% capture my_toc %}{{ my_toc }}
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{{ space }}{{ listModifier }} {{ listItemClass }} [{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}]({% if include.baseurl %}{{ include.baseurl }}{% endif %}#{{ html_id }}){% 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 = '' %}{{ my_toc | markdownify | strip }}
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