Including a link tag in the front matter
For this Stackoverflow question, I could add ansnwer because I have found this blog post some time ago. The question was how to add a link inside a variable in the front matter.
1. Create a filter plugin
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# file: _plugins/expand_nested_variable_filter.rb
module Jekyll
module ExpandNestedVariableFilter
def flatify(input)
Liquid::Template.parse(input).render(@context)
end
end
end
Liquid::Template.register_filter(Jekyll::ExpandNestedVariableFilter)
2. Apply the filter
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---
layout: post
title: "Title"
date: 2022-12-06 18:26:05 +0100
categories: category
author: Author name
author-pic: author.jpg
banner-bottom: [Link to this post]({% link 2022-12-12-flatify-link-from-a-Jekyll-link-tag-in-frontmatter.md %}) using a Jekyll link tag in the page's front matter.
---
{{ site.baseurl | flatify }}
The result
The link tag in the front matter displayed above is properly converted into a link in the content:
This is a Link to this post using a Jekyll link tag in the page’s front matter.
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