nicolabs.net/tags.html

---
layout: page
title: Articles by tag
---

{% comment %}
See https://codinfox.github.io/dev/2015/03/06/use-tags-and-categories-in-your-jekyll-based-github-pages/
{% endcomment %}

{% include allposts.liquid %}

<h2 class="chapter-links">
    <a href="{{ '/articles' | prepend: site.baseurl }}">all articles</a>
</h2>

{% comment %}
=======================
The following part extracts all the tags from your posts and sort tags, so that you do not need to manually collect your tags to a place.
=======================
{% endcomment %}
{% assign rawtags = "" %}
{% for post in allposts %}
	{% assign ttags = post.tags | join:'|' | append:'|' %}
	{% assign rawtags = rawtags | append:ttags %}
{% endfor %}
{% assign rawtags = rawtags | split:'|' | sort_natural %}

{% comment %}
=======================
The following part removes duplicated tags and invalid tags like blank tag.

It also removes duplicates with different character case :
`normtags` is the list of normalized tags (lower case) ; each tag is normalized and tested
against this list before being added to the final list.
=======================
{% endcomment %}
{% assign tags = "" %}
{% assign normtags = "" %}
{% for tag in rawtags %}
  {% assign norm_tag = tag|downcase %}
	{% if tag != "" %}
		{% if tags == "" %}
			{% assign tags = tag | split:'|' %}
		{% endif %}
    {% unless normtags contains norm_tag %}
      {% assign tags = tags | join:'|' | append:'|' | append:tag | split:'|' %}
      {% assign normtags = normtags | join:'|' | append:'|' | append:norm_tag | split:'|' %}
    {% endunless %}
	{% endif %}
{% endfor %}

{% comment %}
=======================
The purpose of this snippet is to list all your posts posted with a certain tag.

norm_tag and normtags are the current tag and the current post's tags
in a normalized format (lower case) to be able to remove duplicates with different case
=======================
{% endcomment %}
{% for tag in tags %}
	<h2 class="tag" id="{{ tag | slugify }}"><a href="#{{tag | slugify}}"><span class="tag-decoration">#</span>{{ tag }}</a></h2>
	<ul>
	 {% for post in allposts %}

     {% assign norm_tag = tag|downcase %}
     {% assign normtags = post.tags | join:'|' | downcase | split:'|' %}
		 {% if normtags contains norm_tag %}
		 <li>
      <strong><a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a></strong>
      <span class="post-meta-separator">•</span> <time class="post-meta datePublished" datetime="{{ post.date | date_to_xmlschema }}" itemprop="datePublished">{{ post.date | date: "%b %-d, %Y" }}</time>
      {% if post.last_modified_at %}<span class="post-meta-separator">•</span> <time class="post-meta dateModified" datetime="{{ post.last_modified_at | date_to_xmlschema }}" itemprop="dateModified">Updated on {{ post.last_modified_at  | date: "%b %-d, %Y" }}</time>{% endif %}
		 </li>
		 {% endif %}
	 {% endfor %}
	</ul>
{% endfor %}