Add some features

I add the projects and math sections.

_config.yml

@@ -167,6 +167,12 @@ kramdown:
       start_line: 1
 
 collections:
+  posts_math:
+    output: true
+    sort_by: order
+  projects:
+    output: true
+    sort_by: order
   tabs:
     output: true
     sort_by: order
@@ -182,6 +188,20 @@ defaults:
       # DO NOT modify the following parameter unless you are confident enough
       # to update the code of all other post links in this project.
       permalink: /posts/:title/
+  - scope:
+      path: "" # An empty string here means all files in the project
+      type: posts_math
+    values:
+      layout: math-post
+      toc: true
+      permalink: /math_posts/:title/  
+  - scope:
+      path: "" # An empty string here means all files in the project
+      type: projects
+    values:
+      layout: projects-post
+      toc: true
+      permalink: /projects/:title/       
   - scope:
       path: _drafts
     values:

_data/contact.yml

@@ -6,9 +6,13 @@
 # - type: twitter
 #   icon: "fa-brands fa-x-twitter"
 
-- type: email
-  icon: "fas fa-envelope"
-  noblank: true # open link in current tab
+# - type: email
+#   icon: "fas fa-envelope"
+#   noblank: true # open link in current tab
+
+- type: linkedin
+  icon: 'fab fa-linkedin'
+  url:  'https://www.linkedin.com/in/alexandru-scanteie/'                  
 
 - type: mastodon
   icon: "fab fa-mastodon"

_layouts/archives.html

@@ -0,0 +1,38 @@
+---
+layout: page
+# The Archives of posts.
+---
+
+{% include lang.html %}
+
+{% assign df_strftime_m = site.data.locales[lang].df.archives.strftime | default: '/ %m' %}
+{% assign df_dayjs_m = site.data.locales[lang].df.archives.dayjs | default: '/ MM' %}
+
+<div id="archives" class="pl-xl-3">
+  {% assign all_posts = site.posts | concat: site.posts_math | concat: site.projects %}
+  {% assign sorted_posts = all_posts | sort: 'date' | reverse %}
+
+  {% for post in sorted_posts %}
+    {% assign cur_year = post.date | date: '%Y' %}
+
+    {% if cur_year != last_year %}
+      {% unless forloop.first %}</ul>{% endunless %}
+
+      <time class="year lead d-block">{{ cur_year }}</time>
+      {{ '<ul class="list-unstyled">' }}
+
+      {% assign last_year = cur_year %}
+    {% endif %}
+
+    <li>
+      {% assign ts = post.date | date: '%s' %}
+      <span class="date day" data-ts="{{ ts }}" data-df="DD">{{ post.date | date: '%d' }}</span>
+      <span class="date month small text-muted ms-1" data-ts="{{ ts }}" data-df="{{ df_dayjs_m }}">
+        {{ post.date | date: df_strftime_m }}
+      </span>
+      <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
+    </li>
+
+    {% if forloop.last %}</ul>{% endif %}
+  {% endfor %}
+</div>

_layouts/categories.html

@@ -0,0 +1,138 @@
+---
+layout: page
+# All the Categories of posts
+---
+
+{% include lang.html %}
+
+{% assign HEAD_PREFIX = 'h_' %}
+{% assign LIST_PREFIX = 'l_' %}
+
+{% assign group_index = 0 %}
+
+{% assign sort_categories = site.categories | sort %}
+
+{% for category in sort_categories %}
+  {% assign category_name = category | first %}
+  {% assign posts_of_category = category | last %}
+  {% assign first_post = posts_of_category | first %}
+
+  {% if category_name == first_post.categories[0] %}
+    {% assign sub_categories = '' | split: '' %}
+
+    {% for post in posts_of_category %}
+      {% assign second_category = post.categories[1] %}
+      {% if second_category %}
+        {% unless sub_categories contains second_category %}
+          {% assign sub_categories = sub_categories | push: second_category %}
+        {% endunless %}
+      {% endif %}
+    {% endfor %}
+
+    {% assign sub_categories = sub_categories | sort %}
+    {% assign sub_categories_size = sub_categories | size %}
+
+    <div class="card categories">
+      <!-- top-category -->
+      <div
+        id="{{ HEAD_PREFIX }}{{ group_index }}"
+        class="card-header d-flex justify-content-between hide-border-bottom"
+      >
+        <span class="ms-2">
+          <i class="far fa-folder{% if sub_categories_size > 0 %}-open{% endif %} fa-fw"></i>
+
+          {% capture _category_url %}/categories/{{ category_name | slugify | url_encode }}/{% endcapture %}
+          <a href="{{ _category_url | relative_url }}" class="mx-2">{{ category_name }}</a>
+
+          <!-- content count -->
+          {% assign top_posts_size = site.categories[category_name] | size %}
+          <span class="text-muted small font-weight-light">
+            {% if sub_categories_size > 0 %}
+              {{ sub_categories_size }}
+              {% if sub_categories_size > 1 %}
+                {{
+                  site.data.locales[lang].categories.category_measure.plural
+                  | default: site.data.locales[lang].categories.category_measure
+                }}
+              {% else %}
+                {{
+                  site.data.locales[lang].categories.category_measure.singular
+                  | default: site.data.locales[lang].categories.category_measure
+                }}
+              {% endif -%}
+              ,
+            {% endif %}
+
+            {{ top_posts_size }}
+
+            {% if top_posts_size > 1 %}
+              {{
+                site.data.locales[lang].categories.post_measure.plural
+                | default: site.data.locales[lang].categories.post_measure
+              }}
+            {% else %}
+              {{
+                site.data.locales[lang].categories.post_measure.singular
+                | default: site.data.locales[lang].categories.post_measure
+              }}
+            {% endif %}
+          </span>
+        </span>
+
+        <!-- arrow -->
+        {% if sub_categories_size > 0 %}
+          <a
+            href="#{{ LIST_PREFIX }}{{ group_index }}"
+            data-bs-toggle="collapse"
+            aria-expanded="true"
+            aria-label="{{ HEAD_PREFIX }}{{ group_index }}-trigger"
+            class="category-trigger hide-border-bottom"
+          >
+            <i class="fas fa-fw fa-angle-down"></i>
+          </a>
+        {% else %}
+          <span data-bs-toggle="collapse" class="category-trigger hide-border-bottom disabled">
+            <i class="fas fa-fw fa-angle-right"></i>
+          </span>
+        {% endif %}
+      </div>
+      <!-- .card-header -->
+
+      <!-- Sub-categories -->
+      {% if sub_categories_size > 0 %}
+        <div id="{{ LIST_PREFIX }}{{ group_index }}" class="collapse show" aria-expanded="true">
+          <ul class="list-group">
+            {% for sub_category in sub_categories %}
+              <li class="list-group-item">
+                <i class="far fa-folder fa-fw"></i>
+
+                {% capture _sub_ctg_url %}/categories/{{ sub_category | slugify | url_encode }}/{% endcapture %}
+                <a href="{{ _sub_ctg_url | relative_url }}" class="mx-2">{{ sub_category }}</a>
+
+                {% assign posts_size = site.categories[sub_category] | size %}
+                <span class="text-muted small font-weight-light">
+                  {{ posts_size }}
+
+                  {% if posts_size > 1 %}
+                    {{
+                      site.data.locales[lang].categories.post_measure.plural
+                      | default: site.data.locales[lang].categories.post_measure
+                    }}
+                  {% else %}
+                    {{
+                      site.data.locales[lang].categories.post_measure.singular
+                      | default: site.data.locales[lang].categories.post_measure
+                    }}
+                  {% endif %}
+                </span>
+              </li>
+            {% endfor %}
+          </ul>
+        </div>
+      {% endif %}
+    </div>
+    <!-- .card -->
+
+    {% assign group_index = group_index | plus: 1 %}
+  {% endif %}
+{% endfor %}

_layouts/category.html

@@ -0,0 +1,24 @@
+---
+layout: page
+# The Category layout
+---
+
+{% include lang.html %}
+
+<div id="page-category">
+  <h1 class="ps-lg-2">
+    <i class="far fa-folder-open fa-fw text-muted"></i>
+    {{ page.title }}
+    <span class="lead text-muted ps-2">{{ page.posts | size }}</span>
+  </h1>
+
+  <ul class="content ps-0">
+    {% for post in page.posts %}
+      <li class="d-flex justify-content-between px-md-3">
+        <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
+        <span class="dash flex-grow-1"></span>
+        {% include datetime.html date=post.date class='text-muted small text-nowrap' lang=lang %}
+      </li>
+    {% endfor %}
+  </ul>
+</div>