Add support for localizing UI text with a _data file

_data/ui-text.yml

@@ -0,0 +1,19 @@
+# User interface text for localization
+
+locale:
+  # English (default)
+  # -----------------
+  en: &DEFAULT_EN
+    pagination_previous: "Previous"
+    pagination_next: "Next"
+    toc_label: "Overview"
+    share_on: "Share on"
+    date_label: "Last Updated:"
+    related_label: "You May Also Enjoy"
+    follow_label: "Follow:"
+    feed_label: "Feed"
+    powered_by: "Powered by"
+  en_US:
+    <<: *DEFAULT_EN
+  en_UK:
+    <<: *DEFAULT_EN

_includes/footer

@@ -16,15 +16,15 @@
 
 <div class="follow">
   <ul>
-    <li><strong>Follow:</strong></li>
+    <li><strong>{{ site.data.ui-text.locale[site.locale].follow_label }}</strong></li>
     {% if site.twitter.username %}
       <li><a href="https://twitter.com/{{ site.twitter.username }}"><i class="fa fa-fw fa-twitter"></i> Twitter</a></li>
     {% endif %}
     {% if site.facebook.username %}
       <li><a href="https://facebook.com/{{ site.facebook.username }}"><i class="fa fa-fw fa-facebook"></i> Facebook</a></li>
     {% endif %}
-    <li><a href="{{ base_path }}/feed.xml"><i class="fa fa-fw fa-rss"></i> Feed</a></li>
+    <li><a href="{{ base_path }}/feed.xml"><i class="fa fa-fw fa-rss"></i> {{ site.data.ui-text.locale[site.locale].feed_label }}</a></li>
   </ul>
 </div>
 
-<div class="copyright">&copy; {{ site.time | date: '%Y' }} {{ site.name | default: site.title }}. Powered by <a href="http://jekyllrb.com" rel="nofollow">Jekyll</a> using the <a href="https://mademistakes.com/work/minimal-mistakes-jekyll-theme/" rel="nofollow">Minimal Mistakes</a> theme.</div>
+<div class="copyright">&copy; {{ site.time | date: '%Y' }} {{ site.name | default: site.title }}. {{ site.data.ui-text.locale[site.locale].powered_by }} <a href="http://jekyllrb.com" rel="nofollow">Jekyll</a> &amp; <a href="https://mademistakes.com/work/minimal-mistakes-jekyll-theme/" rel="nofollow">Minimal Mistakes</a>.</div>

_includes/pagination

@@ -6,9 +6,9 @@
     {% comment %} Link for previous page {% endcomment %}
     {% if paginator.previous_page %}
       {% if paginator.previous_page == 1 %}
-        <li><a href="{{ base_path }}/" class="btn">Previous</a></li>
+        <li><a href="{{ base_path }}/" class="btn">{{ site.data.ui-text.locale[site.locale].pagination_previous }}</a></li>
       {% else %}
-        <li><a href="{{ base_path }}/page{{ paginator.previous_page }}/" class="btn">Previous</a></li>
+        <li><a href="{{ base_path }}/page{{ paginator.previous_page }}/" class="btn">{{ site.data.ui-text.locale[site.locale].pagination_previous }}</a></li>
       {% endif %}
     {% endif %}
 
@@ -59,7 +59,7 @@
 
     {% comment %}Link next page{% endcomment %}
     {% if paginator.next_page %}
-      <li><a href="{{ base_path }}/page{{ paginator.next_page }}/" class="btn">Next</a></li>
+      <li><a href="{{ base_path }}/page{{ paginator.next_page }}/" class="btn">{{ site.data.ui-text.locale[site.locale].pagination_next }}</a></li>
     {% endif %}
   </ul>
 </nav>

_includes/social-share

@@ -1,5 +1,5 @@
 <div class="social-share">
-  <h4>Share on</h4>
+  <h4>{{ site.data.ui-text.locale[site.locale].share_on }}</h4>
   <ul>
     <li>
       <a href="https://twitter.com/intent/tweet?text={{ base_path }}{{ page.url }}" class="twitter" title="Share on Twitter"><i class="fa fa-twitter"></i><span> Twitter</span></a>

_includes/toc

@@ -1,5 +1,5 @@
 <section id="table-of-contents" class="toc">
-<header><h3><i class="fa fa-{{ include.icon | default: 'book' }}"></i> {{ include.title | default: "Overview" }}</h3></header>
+<header><h3><i class="fa fa-{{ include.icon | default: 'book' }}"></i> {{ include.title | default: site.data.ui-text.locale[site.locale].toc_label }}</h3></header>
 <div id="drawer" markdown="1">
 *  Auto generated table of contents
 {:toc}

_layouts/single.html

@@ -26,8 +26,10 @@ layout: default
 
     <footer role="contentinfo">
       {% if site.share and page.share %}{% include social-share %}{% endif %}
-      {% if page.date %}
-        <p class="byline"><strong>{{ page.title }}</strong> was published on <time datetime="{{ page.date | date_to_xmlschema }}">{{ page.date | date: "%B %d, %Y" }}</time>{% if page.modified %} and last modified on <time datetime="{{ page.modified | date: "%Y-%m-%d" }}">{{ page.modified | date: "%B %d, %Y" }}</time>{% endif %}.</p>
+      {% if page.modified %}
+        <p class="byline"><strong>{{ site.data.ui-text.locale[site.locale].date_label }}</strong> <time datetime="{{ page.modified | date: "%Y-%m-%d" }}">{{ page.modified | date: "%B %d, %Y" }}</time></p>
+      {% elsif page.date %}
+        <p class="byline"><strong>{{ site.data.ui-text.locale[site.locale].date_label }}</strong> <time datetime="{{ page.date | date_to_xmlschema }}">{{ page.date | date: "%B %d, %Y" }}</time></p>
       {% endif %}
     </footer>
   </div><!-- /.article-wrap -->
@@ -49,7 +51,7 @@ layout: default
 {% comment %}<!-- only show related on a post page when not disabled -->{% endcomment %}
 {% if page.id and page.related and site.related_posts.size > 0 %}
   <div class="related-articles">
-  <h4>You might also enjoy <small class="pull-right">(<a href="{{ base_path }}/posts/">View all posts</a>)</small></h4>
+  <h4>{{ site.data.ui-text.locale[site.locale].related_label }}</h4>
     <ul>
     {% for post in site.related_posts limit:3 %}
       <li><a href="{{ base_path }}{{ post.url }}" title="{{ post.title }}">{{ post.title }}</a></li>

_posts/2010-01-07-post-modified.md

@@ -0,0 +1,14 @@
+---
+title: "Post: Modified Date"
+modified: 2016-03-09T16:20:02-05:00
+categories:
+  - Post Formats
+tags:
+  - Post Formats
+  - readability
+  - standard
+---
+
+This post has been updated and should show a modified date if used in a layout.
+
+All children, except one, grow up. They soon know that they will grow up, and the way Wendy knew was this. One day when she was two years old she was playing in a garden, and she plucked another flower and ran with it to her mother. I suppose she must have looked rather delightful, for Mrs. Darling put her hand to her heart and cried, "Oh, why can't you remain like this for ever!" This was all that passed between them on the subject, but henceforth Wendy knew that she must grow up. You always know after you are two. Two is the beginning of the end.