Import the framework.

2019-09-30 20:38:41 +08:00 · 2019-09-30 20:38:41 +08:00 · b845c829f6
parent 5d0e72d5da
commit b845c829f6
103 changed files with 4640 additions and 0 deletions
--- a/404.html
+++ b/404.html
@ -0,0 +1,24 @@
+---
+# The 404 page
+# © 2017-2019 Cotes Chung
+# MIT License
+layout: page
+title: "404: Page not found"
+
+permalink: /404.html
+
+redirect_from:  # Same as site.blocklist
+- /norobots/
+- /assets/
+- /tabs/
+- /categories/
+- /tags/
+- /posts/
+
+dynamic_title: true
+---
+
+<div class="lead">
+  <p>Sorry, we've misplaced that URL or it's pointing to something that doesn't exist. </p>
+  <p><a href="{{ site.baseurl }}/">Head back Home</a> to try finding it again, or search for it on the <a href="{{ site.baseurl }}/tabs/archives">Archives page</a>.</p>
+</div>
--- a/13
+++ b/13
@ -0,0 +1,13 @@
+source 'https://rubygems.org'
+
+gem 'jekyll', '>=3.8.6'
+
+# Official Plugins
+group :jekyll_plugins do
+  gem 'jekyll-paginate'
+  gem 'jekyll-redirect-from'
+  gem 'jekyll-seo-tag'
+end
+
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
--- a/21
+++ b/21
@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2019 Cotes Chung
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/_config.yml
+++ b/_config.yml
@ -0,0 +1,166 @@
+# The Site Settings
+# © 2017-2019 Cotes Chung
+# MIT licensed
+
+
+# jekyll-seo-tag settings › https://github.com/jekyll/jekyll-seo-tag/blob/master/docs/usage.md
+#--------------------------
+
+title: Chirpy
+
+description: 'A text-based Jekyll theme.'
+
+# Replace with your domain, e.g. "https://username.github.io"
+url: 'https://www.example.com'
+
+author: Chirpy                          # change to your full name
+
+logo: /assets/img/sample/profile.jpg    # Support network resources.
+
+github:
+  username: github_username             # change to your github username
+
+twitter:
+  username: twitter_username            # change to your twitter username
+
+social:
+  name: Chirpy                          # change to your full name
+  email: example@doamin.com             # change to your email address
+  links:
+    - https://twitter.com/username      # change to your twitter homepage
+    - https://github.com/username       # change to your github homepage
+    # - https://www.facebook.com/username
+    # - https://www.linkedin.com/in/username
+
+google_site_verification: google_meta_tag_verification # change to your verification string
+
+#--------------------------
+
+# Change to your Google Analytics ID
+google_analytics:
+  id: 'UA-*********-*'
+  # Switch for Google Analytics pageviews. DO NOT enable it unless you know how to deploy the Google Analytics superProxy.
+  pv: false
+
+disqus:
+  shortname: 'disqus'   # Change to your Disqus shortname.
+  comments: true        # boolean type, the gobal switch of posts' comments.
+
+# The year your website was first run.
+first_run: 2019
+
+# boolean type, gobal switch for ToC in posts.
+toc: true
+
+
+# if your site type is Project Pages site, change below value to '/projectname'
+baseurl: ''
+
+paginate: 10
+
+markdown: kramdown
+
+highlighter: rouge
+
+kramdown:
+  input: GFM
+  syntax_highlighter: rouge
+  syntax_highlighter_opts: # Rouge Options › https://github.com/jneen/rouge#full-options
+    css_class: 'highlight'
+    # default_lang: console
+    span:
+      line_numbers: false
+    block:
+      line_numbers: true
+      start_line: 1
+
+permalink: /posts/:title/
+
+defaults:
+  -
+    scope:
+      path: ""          # An empty string here means all files in the project
+      type: posts
+    values:
+      layout: post
+      comments: true    # Enable comments in posts.
+      toc: true         # Display TOC column in posts.
+      location: Post
+      breadcrumb:
+        -
+          label: Posts
+          url: /
+  -
+    scope:
+      path: _drafts
+    values:
+      comments: false
+  -
+    scope:
+      path: tags
+    values:
+      location: Tag
+      breadcrumb:
+        -
+          label: Home
+          url: /
+        -
+          label: Tags
+          url: /tabs/tags/
+  -
+    scope:
+      path: categories
+    values:
+      location: Category
+      breadcrumb:
+        -
+          label: Home
+          url: /
+        -
+          label: Categories
+          url: /tabs/categories/
+  -
+    scope:
+      path: tabs
+    values:
+      layout: page
+      dynamic_title: true    # hide title in mobile screens.
+      breadcrumb:
+        -
+          label: Home
+          url: /
+
+timezone: Asia/Shanghai
+
+sass:
+  sass_dir: /assets/css
+  style: compressed
+
+compress_html:
+  clippings: all
+  comments: ["<!-- ", " -->"]
+  endings: [html, head, body, dt, dd, rt, rp, optgroup, option, colgroup, caption, thead, tbody, tfoot, tr, td, th]
+  profile: false
+  blanklines: false
+  ignore:
+    envs: []
+
+exclude:
+  - vendor/       # Avoid Jekyll mistakenly read the vender directory in Travis-CI's VM .
+  - Gemfile.lock
+  - Gemfile
+  - run.sh
+  - build.sh
+  - init.sh
+  - pv.sh
+
+sitemap_exclude:  # Sitemap will exclude the following items.
+  - /norobots/
+  - /assets/
+  - /tabs/
+  - /categories/
+  - /tags/
+  - /posts/
+  - /404.html
+  - /redirects.json
+  - /search.json
--- a/_data/label.yml
+++ b/_data/label.yml
@ -0,0 +1,17 @@
+# The label text of site.
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+
+tabs:
+  - { name: "Home" }
+  - { name: "Categories", path: tabs, url: categories }
+  - { name: "Tags", path: tabs, url: tags }
+  - { name: "Archives", path: tabs, url: archives }
+  - { name: "About", path: tabs, url: about }
+
+panel:
+  lastmod: "Recent Update"
+  trending_tags: "Trending Tags"
+  toc: "Contents"
+
+search_hint: "Search"   # text show on search bar
--- a/_includes/date-format.html
+++ b/_includes/date-format.html
@ -0,0 +1,8 @@
+<!--
+ Define the liquid date formats.
+ © 2019 Cotes Chung
+ Published under the MIT License
+-->
+
+{% assign TOOLTIP_DATE = "%a, %b %e, %Y, %l:%M %p %z" %}
+{% assign POST_DATE = "%b %e, %Y" %}
--- a/_includes/disqus.html
+++ b/_includes/disqus.html
@ -0,0 +1,24 @@
+<!--
+  The Disqus lazy loading.
+  Powered by: https://osvaldas.info/lazy-loading-disqus-comments
+  © 2019 Cotes Chung
+  MIT License
+-->
+
+<div id="disqus" class="pt-2 pb-4">
+  <p class="font-italic text-muted small">Comments powered by <a href="https://disqus.com/">Disqus</a>.</p>
+</div>
+
+<script src="{{ site.baseurl }}/assets/lib/jquery.disqusloader.min.js"></script>
+<script>
+  var options = {
+    scriptUrl: '//{{ site.disqus.shortname }}.disqus.com/embed.js',
+
+    disqusConfig: function() {
+      this.page.url = '{{ site.url | append: site.baseurl | append: page.url }}';
+      this.page.identifier = '{{ page.url }}';
+    }
+  };
+
+  $.disqusLoader('#disqus', options);
+</script>
--- a/_includes/favicons.html
+++ b/_includes/favicons.html
@ -0,0 +1,34 @@
+<!--
+  The Favicons for Web, Android, Microsoft, and iOS (iPhone and iPad) Apps
+  Generated by: https://www.favicon-generator.org/
+  © 2019 Cotes Chung
+  Published under the MIT license
+-->
+
+{% capture icon_url %}{{ site.baseurl }}/assets/img/favicons{% endcapture %}
+
+<link rel="shortcut icon" href="{{ icon_url }}/favicon.ico" type="image/x-icon">
+<link rel="icon" href="{{ icon_url }}/favicon.ico" type="image/x-icon">
+
+<link rel="apple-touch-icon" href="{{ icon_url }}/apple-icon.png">
+<link rel="apple-touch-icon" href="{{ icon_url }}/apple-icon-precomposed.png">
+<link rel="apple-touch-icon" sizes="57x57" href="{{ icon_url }}/apple-icon-57x57.png">
+<link rel="apple-touch-icon" sizes="60x60" href="{{ icon_url }}/apple-icon-60x60.png">
+<link rel="apple-touch-icon" sizes="72x72" href="{{ icon_url }}/apple-icon-72x72.png">
+<link rel="apple-touch-icon" sizes="76x76" href="{{ icon_url }}/apple-icon-76x76.png">
+<link rel="apple-touch-icon" sizes="114x114" href="{{ icon_url }}/apple-icon-114x114.png">
+<link rel="apple-touch-icon" sizes="120x120" href="{{ icon_url }}/apple-icon-120x120.png">
+<link rel="apple-touch-icon" sizes="144x144" href="{{ icon_url }}/apple-icon-144x144.png">
+<link rel="apple-touch-icon" sizes="152x152" href="{{ icon_url }}/apple-icon-152x152.png">
+<link rel="apple-touch-icon" sizes="180x180" href="{{ icon_url }}/apple-icon-180x180.png">
+
+<link rel="icon" type="image/png" sizes="192x192"  href="{{ icon_url }}/android-icon-192x192.png">
+<link rel="icon" type="image/png" sizes="32x32" href="{{ icon_url }}/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="96x96" href="{{ icon_url }}/favicon-96x96.png">
+<link rel="icon" type="image/png" sizes="16x16" href="{{ icon_url }}/favicon-16x16.png">
+
+<link rel="manifest" href="{{ icon_url }}/manifest.json">
+<meta name='msapplication-config' content='{{ icon_url }}/browserconfig.xml'>
+<meta name="msapplication-TileColor" content="#ffffff">
+<meta name="msapplication-TileImage" content="{{ icon_url }}/ms-icon-144x144.png">
+<meta name="theme-color" content="#ffffff">
--- a/_includes/fixlinenos.html
+++ b/_includes/fixlinenos.html
@ -0,0 +1,9 @@
+<!--
+  Fixed kramdown code highlight rendering:
+  https://github.com/penibelst/jekyll-compress-html/issues/101
+  https://github.com/penibelst/jekyll-compress-html/issues/71#issuecomment-188144901
+-->
+{% if _content contains '<pre class="highlight">' %}
+  {% assign _content = _content | replace: '<pre class="highlight"><code', '<code' %}
+  {% assign _content = _content | replace: '</code></pre>', '</code>' %}
+{% endif %}
--- a/_includes/footer.html
+++ b/_includes/footer.html
@ -0,0 +1,24 @@
+<!--
+  The Footer
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+
+<footer class="d-flex w-100 justify-content-center">
+  <div class="d-flex justify-content-between  align-items-center">
+    <div class="copyright">
+      {% assign first = site.first_run | plus: 0 %}
+      {% assign last = 'now' | date: "%Y" | plus: 0 %}
+      <p class="mb-0">
+        © {% if last > first %}{{ first }}-{% endif %}{{-last-}}
+        <a href="{{ site.social.links[0] }}" class="ml-1">{{ site.social.name }}</a>.
+        <br>Powered by <a href="https://jekyllrb.com" target="_blank">Jekyll</a> & <a href="https://github.com/cotes2020/jekyll-theme-chirpy/">Chirpy</a>, hosted on <a href="https://pages.github.com/" target="_blank">GitHub Pages</a>.
+      </p>
+    </div>
+    <div class="license">
+      <p class="mb-0">
+        The blog posts on this site are licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.
+      </p>
+    </div>
+  </div> <!-- div.d-flex -->
+</footer>
--- a/_includes/google-analytics.html
+++ b/_includes/google-analytics.html
@ -0,0 +1,14 @@
+<!--
+  The GA snippet
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+
+  ga('create', '{{ site.google_analytics.id }}', 'auto');
+  ga('send', 'pageview');
+</script>
--- a/_includes/head.html
+++ b/_includes/head.html
@ -0,0 +1,53 @@
+<!--
+  The Head
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+
+<head>
+  <title>
+    {%- if page.layout == "home" -%}
+      {{- site.title -}}
+    {%- else -%}
+      {{ page.title }} | {{ site.title }}
+    {%- endif -%}
+  </title>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+  {% seo title=false %}
+
+  {% include favicons.html %}
+
+  <link rel="stylesheet"
+    href="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/css/bootstrap.min.css"
+    integrity="sha256-LA89z+k9fjgMKQ/kq4OO2Mrf8VltYml/VES+Rg0fh20=" crossorigin="anonymous">
+
+  <link rel="stylesheet"
+    href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.11.2/css/all.min.css"
+    integrity="sha256-+N4/V/SbAFiW1MPBCXnfnP9QSN3+Keu+NlB+0ev/YKQ="
+    crossorigin="anonymous">
+
+  <link rel="stylesheet"
+    href="{{ site.baseurl }}/assets/css/styles.css">
+
+  <script src="https://cdn.jsdelivr.net/npm/jquery@3.4.1/dist/jquery.min.js"
+    integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
+
+  <script>
+    document.jQuery || document.write('<script src="{{ site.baseurl }}/assets/lib/jquery-3.4.1.min.js"><\/script>');
+  </script>
+
+  <script src="https://cdn.jsdelivr.net/npm/popper.js@1.15.0/dist/umd/popper.min.js"
+    integrity="sha256-fTuUgtT7O2rqoImwjrhDgbXTKUwyxxujIMRIK7TbuNU=" crossorigin="anonymous"></script>
+
+  <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/js/bootstrap.min.js"
+    integrity="sha256-5+02zu5UULQkO7w1GIr6vftCgMfFdZcAHeDtFnKZsBs=" crossorigin="anonymous"></script>
+
+  <script src="{{ site.baseurl }}/assets/js/dist/commons.js" async></script>
+
+  {% if jekyll.environment == 'production' %}
+    {% include google-analytics.html %}
+  {% endif %}
+
+</head>
--- a/_includes/panel.html
+++ b/_includes/panel.html
@ -0,0 +1,72 @@
+<!--
+  The Pannel on right side (Desktop views)
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+
+<div class="panel-group">
+
+  {% assign lastmod_list = "" | split: "" %}
+
+  {% for post in site.posts %}
+    {% if post.date >= post.seo.date_modified or post.seo.date_modified == nil %}
+      {% continue %}
+    {% endif%}
+    {% capture item %}
+      {{ post.seo.date_modified }}::{{ post.title }}::{{ post.url }}
+    {% endcapture %}
+    {% assign lastmod_list = lastmod_list | push: item %}
+  {% endfor %}
+
+  {% if lastmod_list.size > 0 %}
+  <div id="panel-update" class="post mb-4"">
+    <h3 data-toc-skip>
+      {{ site.data.label.panel.lastmod }}
+    </h3>
+    <ul class="post-content pl-0 mt-2 pb-1">
+    {% assign MAX_SIZE = 5 %}
+    {% assign sum = 0 %}
+    {% assign sorted_posts = lastmod_list | sort | reverse %}
+    {% for post in sorted_posts %}
+      {% assign meta = post | split: "::" %}
+      <li><a href="{{ meta[2] | prepend: site.baseurl }}">{{ meta[1] }}</a></li>
+      {% assign sum = sum | plus: 1 %}
+      {% if sum >= MAX_SIZE %}
+        {% break %}
+      {% endif %}
+    {% endfor %}
+    </ul>
+  </div><!-- #panel-update -->
+  {% endif %}
+
+  <div id="panel-tags">
+    <h3 data-toc-skip>
+      {{ site.data.label.panel.trending_tags }}
+    </h3>
+    <div class="d-flex flex-wrap mt-2 pb-1 pr-3">
+      {% capture tags_array %}
+        {% for tag in site.tags %}
+          {{ tag[1] | size }}:{{ tag[0] | replace: ' ', '-' }}
+        {% endfor %}
+      {% endcapture %}
+
+      {% assign MAX = 10 %}
+      {% assign count = 0 %}
+      {% assign trends = tags_array | split: " " | sort | reverse %}
+
+      <div>
+      <!-- <p>tags_array->{{ tags_array }}</p> -->
+      {% for trend in trends %}
+        {% assign count = count | plus: 1 %}
+        {% assign tag = trend | split: ":" | last  %}
+        <a class="post-tag" href="{{ site.baseurl }}/tags/{{ tag | downcase }}/">{{ tag | replace: '-', ' ' }}</a>
+        {% if count >= MAX %}
+          {% break %}
+        {% endif %}
+      {% endfor %}
+      </div>
+
+    </div>
+  </div><!-- #panel-tags -->
+
+</div>
--- a/_includes/search-results.html
+++ b/_includes/search-results.html
@ -0,0 +1,15 @@
+<!--
+  The Search results
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+<div id="search-result-wrap">
+  <div class="row justify-content-center bg-white">
+    <div class="col-12 col-md-12 col-lg-11 col-xl-9 pl-xl-5 pr-xl-5 pb-5 mt-3 mb-3">
+      <h2 class="mt-3 pt-3 ml-3 ml-md-5 ml-lg-0" data-toc-skip>Search Results</h2>
+      <div class="post-content ml-1 ml-md-5 ml-lg-0">
+        <ul id="search-results" ></ul>
+      </div>
+    </div>
+  </div>
+</div>
--- a/_includes/search.html
+++ b/_includes/search.html
@ -0,0 +1,13 @@
+<!--
+  The Search
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+<script src="{{ site.baseurl }}/assets/lib/simple-jekyll-search-1.7.1.min.js"></script>
+<script>
+SimpleJekyllSearch({
+  searchInput: document.getElementById('search-input'),
+  resultsContainer: document.getElementById('search-results'),
+  json: '{{ site.baseurl }}/search.json'
+})
+</script>
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@ -0,0 +1,65 @@
+<!--
+  The Side Bar
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+
+<div id="nav-wrap">
+  <div id="profile-wrap" class="d-flex justify-content-center">
+    <div id="profile">
+      <a href="{{ site.baseurl }}/" alt="profile-photo">
+        {% assign profile_img = site.logo %}
+        {% if profile_img | slice: 0 == '/' %}
+          {% assign profile_img = profile_img | prepend: site.baseurl %}
+        {% endif %}
+        <img src="{{ profile_img }}"></img>
+      </a>
+    </div>
+  </div>
+  <div id="site-title" class="d-flex justify-content-center align-items-center">
+    <a href="{{ site.baseurl }}/">{{- site.title -}}</a>
+  </div>
+  <div id="site-subtitle" class="font-italic">{{ site.description }}</div>
+  <ul class="nav flex-column">
+
+  {% assign page_urls = page.url | split: "/" %}
+
+  {% for item in site.data.label.tabs %}
+    {% assign ref = site.baseurl | append: "/" %}
+
+    {% if item.path %}
+      {% assign ref = ref | append: item.path | append: "/" %}
+      {% if item.url %}
+        {% assign ref = ref | append: item.url | append: "/" %}
+      {% endif %}
+    {% endif %}
+
+    <li class="nav-item d-flex justify-content-center
+      {% if item.url == page_urls.last or
+        item.name == "Home" and page.layout == "home" %}active{% endif %}">
+      <a href="{{ ref }}" class="nav-link d-flex justify-content-center align-items-center w-100"><!-- <i class="{{ item.icon }}"></i> -->
+      {{ item.name | upcase }}
+      </a>
+    </li> <!-- .nav-item -->
+  {% endfor %}
+
+    <span class="cursor"></span>
+  </ul> <!-- ul.nav.flex-column -->
+
+</div><!-- #nav-wrap -->
+
+<div class="contact d-flex justify-content-around mt-3">
+  <a href="https://github.com/{{ site.github.username }}" target="_blank">
+    <i class="fab fa-github"></i>
+  </a>
+  <a href="https://twitter.com/{{ site.twitter.username }}" target="_blank">
+    <i class="fab fa-twitter"></i>
+  </a>
+  {% assign email = site.social.email | split: '@' %}
+  <a href="javascript:window.open('mailto:' + ['{{ email[0] }}','{{ email[1] }}'].join('@'))">
+    <i class="fas fa-envelope"></i>
+  </a>
+  <a href="{{ site.baseurl }}/feed.xml" target="_blank">
+    <i class="fas fa-rss"></i>
+  </a>
+</div>
--- a/_includes/topbar.html
+++ b/_includes/topbar.html
@ -0,0 +1,49 @@
+<!--
+  The Top Bar
+  © 2017-2019 Cotes Chung
+  MIT License
+-->
+<div id="topbar" class="bg-white row justify-content-center topbar-down">
+
+  <div id="topbar-main" class="d-flex h-100 align-items-center justify-content-between col-12 col-md-12 col-lg-11 col-xl-11 pl-md-2 pr-md-2 pl-lg-2 pr-lg-2">
+
+    <span id="breadcrumb">
+      {% for item in page.breadcrumb %}
+        {% if item.url %}
+        <span>
+          <a href="{{ site.baseurl }}{{ item.url | remove: '.html'}}">
+            {{ item.label }}
+          </a>
+        </span>
+        {% else %}
+          <span>{{ item.label }}</span>
+        {% endif %}
+      {% endfor %}
+
+      {% unless page.layout == "home" %}
+        <span>{{ page.title }}</span>
+      {% endunless %}
+
+    </span><!-- endof #breadcrumb -->
+
+    <i id="sidebar-trigger" class="fas fa-bars fa-fw"></i>
+
+    <div id="topbar-title">
+    {% if page.location %}
+      {{- page.location -}}
+    {% elsif page.layout == "home" %}
+      {{- site.title -}}
+    {% else %}
+      {{- page.title -}}
+    {% endif %}
+    </div>
+
+    <i id="search-trigger" class="fas fa-search fa-fw"></i>
+    <span id="search-wrap">
+      <i class="fas fa-search fa-fw"></i>
+      <input class="form-control" id="search-input" type="search" placeholder="{{ site.data.label.search_hint }}...">
+    </span>
+    <a href="javascript:;">Cancel</a>
+  </div>
+
+</div>
--- a/_layouts/category.html
+++ b/_layouts/category.html
@ -0,0 +1,26 @@
+---
+layout: page
+# The Category layout
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+{% include date-format.html %}
+
+<div id="page-category">
+  <h1>
+    <i class="far fa-folder-open fa-fw text-muted"></i>
+    {{ page.title }}
+    <span class="lead text-muted pl-2">{{ site.categories[page.category] | size }}</span>
+  </h1>
+
+  <ul class="post-content pl-0">
+    {% for post in site.categories[page.category] %}
+    <li class="d-flex justify-content-between pl-md-3 pr-md-3">
+      <a href="{{ post.url | absolute_url }}">{{ post.title }}</a>
+      <span class="dash flex-grow-1"></span>
+      <span class="text-muted small">{{ post.date | date: POST_DATE }}</span>
+    </li>
+    {% endfor %}
+  </ul>
+</div>
--- a/_layouts/compress.html
+++ b/_layouts/compress.html
@ -0,0 +1,10 @@
+---
+# Jekyll layout that compresses HTML
+# v3.1.0
+# http://jch.penibelst.de/
+# © 2014–2015 Anatol Broder
+# MIT License
+---
+
+{% capture _LINE_FEED %}
+{% endcapture %}{% if site.compress_html.ignore.envs contains jekyll.environment or site.compress_html.ignore.envs == "all" %}{{ content }}{% else %}{% capture _content %}{{ content }}{% endcapture %}{% assign _profile = site.compress_html.profile %}{% if site.compress_html.endings == "all" %}{% assign _endings = "html head body li dt dd optgroup option colgroup caption thead tbody tfoot tr td th" | split: " " %}{% else %}{% assign _endings = site.compress_html.endings %}{% endif %}{% for _element in _endings %}{% capture _end %}</{{ _element }}>{% endcapture %}{% assign _content = _content | remove: _end %}{% endfor %}{% if _profile and _endings %}{% assign _profile_endings = _content | size | plus: 1 %}{% endif %}{% for _element in site.compress_html.startings %}{% capture _start %}<{{ _element }}>{% endcapture %}{% assign _content = _content | remove: _start %}{% endfor %}{% if _profile and site.compress_html.startings %}{% assign _profile_startings = _content | size | plus: 1 %}{% endif %}{% if site.compress_html.comments == "all" %}{% assign _comments = "<!-- -->" | split: " " %}{% else %}{% assign _comments = site.compress_html.comments %}{% endif %}{% if _comments.size == 2 %}{% capture _comment_befores %}.{{ _content }}{% endcapture %}{% assign _comment_befores = _comment_befores | split: _comments.first %}{% for _comment_before in _comment_befores %}{% if forloop.first %}{% continue %}{% endif %}{% capture _comment_outside %}{% if _carry %}{{ _comments.first }}{% endif %}{{ _comment_before }}{% endcapture %}{% capture _comment %}{% unless _carry %}{{ _comments.first }}{% endunless %}{{ _comment_outside | split: _comments.last | first }}{% if _comment_outside contains _comments.last %}{{ _comments.last }}{% assign _carry = false %}{% else %}{% assign _carry = true %}{% endif %}{% endcapture %}{% assign _content = _content | remove_first: _comment %}{% endfor %}{% if _profile %}{% assign _profile_comments = _content | size | plus: 1 %}{% endif %}{% endif %}{% assign _pre_befores = _content | split: "<pre" %}{% assign _content = "" %}{% for _pre_before in _pre_befores %}{% assign _pres = _pre_before | split: "</pre>" %}{% assign _pres_after = "" %}{% if _pres.size != 0 %}{% if site.compress_html.blanklines %}{% assign _lines = _pres.last | split: _LINE_FEED %}{% capture _pres_after %}{% for _line in _lines %}{% assign _trimmed = _line | split: " " | join: " " %}{% if _trimmed != empty or forloop.last %}{% unless forloop.first %}{{ _LINE_FEED }}{% endunless %}{{ _line }}{% endif %}{% endfor %}{% endcapture %}{% else %}{% assign _pres_after = _pres.last | split: " " | join: " " %}{% endif %}{% endif %}{% capture _content %}{{ _content }}{% if _pre_before contains "</pre>" %}<pre{{ _pres.first }}</pre>{% endif %}{% unless _pre_before contains "</pre>" and _pres.size == 1 %}{{ _pres_after }}{% endunless %}{% endcapture %}{% endfor %}{% if _profile %}{% assign _profile_collapse = _content | size | plus: 1 %}{% endif %}{% if site.compress_html.clippings == "all" %}{% assign _clippings = "html head title base link meta style body article section nav aside h1 h2 h3 h4 h5 h6 hgroup header footer address p hr blockquote ol ul li dl dt dd figure figcaption main div table caption colgroup col tbody thead tfoot tr td th" | split: " " %}{% else %}{% assign _clippings = site.compress_html.clippings %}{% endif %}{% for _element in _clippings %}{% assign _edges = " <e;<e; </e>;</e>;</e> ;</e>" | replace: "e", _element | split: ";" %}{% assign _content = _content | replace: _edges[0], _edges[1] | replace: _edges[2], _edges[3] | replace: _edges[4], _edges[5] %}{% endfor %}{% if _profile and _clippings %}{% assign _profile_clippings = _content | size | plus: 1 %}{% endif %}{{ _content }}{% if _profile %} <table id="compress_html_profile_{{ site.time | date: "%Y%m%d" }}" class="compress_html_profile"> <thead> <tr> <td>Step <td>Bytes <tbody> <tr> <td>raw <td>{{ content | size }}{% if _profile_endings %} <tr> <td>endings <td>{{ _profile_endings }}{% endif %}{% if _profile_startings %} <tr> <td>startings <td>{{ _profile_startings }}{% endif %}{% if _profile_comments %} <tr> <td>comments <td>{{ _profile_comments }}{% endif %}{% if _profile_collapse %} <tr> <td>collapse <td>{{ _profile_collapse }}{% endif %}{% if _profile_clippings %} <tr> <td>clippings <td>{{ _profile_clippings }}{% endif %} </table>{% endif %}{% endif %}
--- a/_layouts/default.html
+++ b/_layouts/default.html
@ -0,0 +1,44 @@
+---
+layout: compress
+# Default layout
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+<!DOCTYPE html>
+<html lang="en">
+
+  {% include head.html %}
+
+  <body data-spy="scroll" data-target="#toc">
+    <div id="sidebar" class="d-flex flex-column">
+      {% include sidebar.html %}
+    </div>
+    <div id="main-wrap">
+      {% include topbar.html %}
+      <div id="main">
+        <div class="row justify-content-center bg-white">
+
+        {% capture _content %}
+          {{ content }}
+        {% endcapture %}
+
+        {% include fixlinenos.html %}
+        {{ _content }}
+
+        </div>
+        {% include footer.html %}
+      </div>
+      {% include search-results.html %}
+    </div>
+
+    <div id="mask"></div>
+
+    {% include search.html %}
+
+    <a id="back-to-top" href="#" class="btn btn-lg btn-box-shadow" role="button">
+      <i class="fas fa-angle-up"></i>
+    </a>
+  </body>
+
+</html>
--- a/_layouts/home.html
+++ b/_layouts/home.html
@ -0,0 +1,128 @@
+---
+layout: page
+# The Home page layout
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+{% include date-format.html %}
+
+<div id="post-list">
+  {% for post in paginator.posts %}
+  <div class="post-preview">
+    <h1>
+      <a href="{{ site.baseurl }}{{ post.url }}">{{ post.title }}</a>
+    </h1>
+    <div class="post-content">
+      <p>
+      {{ post.content | strip_html | truncate: 200 }}
+      </p>
+    </div>
+
+    <div class="post-meta text-muted pt-1">
+      <!-- posted date -->
+      <i class="far fa-clock fa-fw"></i>
+      <span class="timeago" data-toggle="tooltip" title="{{ post.date | date: TOOLTIP_DATE }}">
+      {{ post.date | date: POST_DATE }}
+      <i class="hidden">{{ post.date | date_to_xmlschema }}</i>
+      </span>
+      <!-- page views -->
+      {% if site.google_analytics.pv %}
+      <i class="far fa-eye fa-fw"></i>
+      <span id="pv_{{-post.title-}}" class="pageviews">
+        <i class="fas fa-spinner fa-spin"></i>
+      </span>
+      {% endif %}
+    </div>
+  </div> <!-- .post-review -->
+  {% endfor %}
+</div> <!-- #post-list -->
+
+{% if paginator.total_pages > 0 %}
+<ul class="pagination mt-4 mb-0 pl-lg-2">
+  <!-- left arrow -->
+  {% if paginator.previous_page %}
+  <li class="page-item">
+    <a class="page-link btn-box-shadow" href="{{ site.baseurl }}{{ paginator.previous_page_path }}">
+      <i class="fas fa-angle-left"></i>
+    </a>
+  </li>
+  {% else %}
+  <li class="page-item disabled">
+    <a class="page-link btn-box-shadow" href="#"><i class="fas fa-angle-left"></i></a>
+  </li>
+  {% endif %}
+  <!-- endof left arrow -->
+
+  <!-- page numbers -->
+  {% assign left_ellipsis = false %}
+  {% assign right_ellipsis = false %}
+
+  {% for i in (1..paginator.total_pages) %}
+
+    {% assign pre = paginator.page | minus: 1 %}
+    {% assign next = paginator.page | plus: 1 %}
+    {% assign pre_less = pre | minus: 1 %}
+    {% assign next_more = next | plus: 1 %}
+    {% assign show = false %}
+
+    {% if paginator.page == 1 %}
+      {% if i <= 3 or i == paginator.total_pages %}
+        {% assign show = true %}
+      {% endif %}
+    {% elsif paginator.page == paginator.total_pages %}
+      {% if i == 1 or i >= pre_less %}
+        {% assign show = true %}
+      {% endif %}
+    {% else %}
+      {% if i == 1 or i == paginator.total_pages%}
+        {% assign show = true %}
+      {% elsif i >= pre and i <= next %}
+        {% assign show = true %}
+      {% endif %}
+    {% endif %}
+
+    {% if show %}
+        <!-- show number -->
+        <li class="page-item {% if i == paginator.page %} active{% endif %}">
+          <a class="page-link btn-box-shadow" href="{{ site.baseurl }}/{% if i > 1%}page{{ i }}/{% endif %}">{{ i }}</a>
+        </li>
+      {% else %}
+        <!-- hide number -->
+        {% if i < pre and left_ellipsis == false %}
+          <li class="page-item disabled">
+            <span class="page-link btn-box-shadow">...</span>
+          </li>
+          {% assign left_ellipsis = true %}
+        {% elsif i > next and right_ellipsis == false %}
+          <li class="page-item disabled">
+            <span class="page-link btn-box-shadow">...</span>
+          </li>
+          {% assign right_ellipsis = true %}
+        {% endif %}
+      {% endif %}
+
+  {% endfor %}
+
+  <!-- right arrow -->
+  {% if paginator.next_page %}
+  <li class="page-item">
+    <a class="page-link btn-box-shadow" href="{{ site.baseurl }}{{ paginator.next_page_path }}">
+      <i class="fas fa-angle-right"></i>
+    </a>
+  </li>
+  {% else %}
+  <li class="page-item disabled">
+    <a class="page-link btn-box-shadow" href="#"><i class="fas fa-angle-right"></i></a>
+  </li>
+  {% endif %}
+
+</ul> <!-- .pagination -->
+{% endif %}
+
+<script src="{{ site.baseurl }}/assets/js/dist/timeago.min.js"></script>
+
+{% if site.google_analytics.pv %}
+<script src="{{ site.baseurl }}/assets/js/dist/countUp.min.js" async></script>
+<script src="{{ site.baseurl }}/assets/js/dist/pageviews.min.js" async></script>
+{% endif %}
--- a/_layouts/page.html
+++ b/_layouts/page.html
@ -0,0 +1,29 @@
+---
+layout: default
+# The page layout
+# © 2017-2019 Cotes Chung
+# MIT License
+---
+
+<div class="col-12 col-lg-11 col-xl-8">
+  <div id="page" class="post pb-5 pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4 pl-xl-3">
+
+  {% if page.dynamic_title %}
+
+    <h1 class="dynamic-title">{{ page.title }}</h1>
+    <div class="post-content">
+      {{ content }}
+    </div>
+
+  {% else %}
+
+    {{ content }}
+
+  {% endif %}
+
+  </div> <!-- #page -->
+</div><!-- end .col-12 -->
+
+<div id="panel-wrap" class="col-xl-3 pl-2">
+  {% include panel.html %}
+</div>
--- a/_layouts/post.html
+++ b/_layouts/post.html
@ -0,0 +1,117 @@
+---
+layout: default
+# The posts' layout
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+{% include date-format.html %}
+
+<div class="col-12 col-lg-11 col-xl-8">
+  <div id="post-wrap" class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4 pl-xl-3">
+    <div class="post">
+      <h1 data-toc-skip>{{ page.title }}</h1>
+      <div class="post-meta text-muted d-flex flex-column">
+        <!-- Published Date and Categoreis -->
+        <div>
+          <span class="timeago" data-toggle="tooltip" title="{{ page.date | date: TOOLTIP_DATE }}">
+            {{ page.date | date: POST_DATE }}
+            <i class="hidden">{{ page.date | date_to_xmlschema }}</i>
+          </span>
+        {% if page.categories.size > 0 %}on{% endif %}
+        {% for category in page.categories %}
+          <a href='{{ site.baseurl }}/categories/{{ category | replace: ' ', '-' | downcase }}/'>{{ category }}</a>
+          {%- unless forloop.last -%}, {%- endunless -%}
+        {% endfor %}
+        </div>
+        <!-- lastmod -->
+        {% if page.seo.date_modified > page.date %}
+        <div>
+          Updated
+          <span class="timeago lastmod" data-toggle="tooltip" title="{{ page.seo.date_modified | date: TOOLTIP_DATE }}">
+            {{ page.seo.date_modified | date: POST_DATE }}
+            <i class="hidden">{{ page.seo.date_modified | date_to_xmlschema}}</i>
+          </span>
+        </div>
+        {% endif %}
+        <!-- page views -->
+        {% if site.google_analytics.pv %}
+        <div>
+          <span id="pv" class="pageviews"><i class="fas fa-spinner fa-spin"></i></span> views
+        </div>
+        {% endif %}
+      </div> <!-- .post-meta -->
+
+      <div class="post-content">
+        {% if page.image %}
+        <img src="{{ page.image }}" class="img-rounded">
+        {% endif %}
+        {{ content }}
+      </div><!-- .post-content -->
+
+      <div class="post-tail text-muted">
+        <!-- Tags -->
+        {% if page.tags.size > 0 %}
+        <div class="mb-2">
+          {% for tag in page.tags %}
+          <a href="{{ site.baseurl }}/tags/{{ tag | replace: ' ', '-' | downcase }}/"
+            class="post-tag no-text-decoration" >
+            {{- tag -}}
+          </a>{%- if forloop.last != true -%}&ensp;{%- endif -%}
+          {% endfor %}
+        </div>
+        {% endif %}
+
+      </div><!-- endof .post-tail -->
+
+    </div> <!-- .post -->
+
+    <div class="post-pager d-flex justify-content-between">
+    {% if page.previous.url %}
+      <a href="{{ site.baseurl }}{{page.previous.url}}" class="btn btn-outline-primary">
+    {% else %}
+      <a href="javascript:;" class="btn btn-outline-primary disabled">
+    {% endif %}
+        <i class="fas fa-angle-left mr-1"></i>
+        OLDER POST
+      </a>
+
+    {% if page.next.url %}
+      <a href="{{ site.baseurl }}{{page.next.url}}" class="btn btn-outline-primary">
+    {% else %}
+      <a href="javascript:;" class="btn btn-outline-primary disabled">
+    {% endif %}
+      NEWER POST
+      <i class="fas fa-angle-right ml-1"></i>
+      </a>
+    </div> <!-- end .post-pager -->
+
+    {% if site.disqus.comments and page.comments %}
+      {% include disqus.html %}
+    {% else %}
+      <br>
+    {% endif %}
+
+  </div> <!-- #post-wrap -->
+</div> <!-- div.col-12..col-lg-11.col-xl-8 -->
+
+<div id="post-panel" class="col-xl-3 pl-2">
+  {% include panel.html %}
+  {% if site.toc and page.toc %}
+  <div id="toc-wrap" class="topbar-down pr-4">
+    <h3 data-toc-skip class="pl-3 pt-2">
+      {{ site.data.label.panel.toc }}
+    </h3>
+    <nav id="toc" data-toggle="toc"></nav>
+  </div>
+  <link rel="stylesheet" href="{{ site.baseurl }}/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.css" />
+  <script src="{{ site.baseurl }}/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.js"></script>
+  {% endif %}
+</div> <!-- #post-panel -->
+
+<script src="{{ site.baseurl }}/assets/js/dist/timeago.min.js"></script>
+
+{% if site.google_analytics.pv %}
+<script src="{{ site.baseurl }}/assets/js/dist/countUp.min.js" async></script>
+<script src="{{ site.baseurl }}/assets/js/dist/pageviews.min.js" async></script>
+{% endif %}
--- a/_layouts/tag.html
+++ b/_layouts/tag.html
@ -0,0 +1,25 @@
+---
+layout: page
+# The layout for Tag page
+# © 2017-2019 Cotes Chung
+# MIT Licensed
+---
+
+{% include date-format.html %}
+
+<div id="page-tag">
+  <h1>
+    <i class="fa fa-tag fa-fw text-muted"></i>
+    {{ page.title }}
+    <span class="lead text-muted pl-2">{{ site.tags[page.tag] | size }}</span>
+  </h1>
+  <ul class="post-content pl-0">
+    {% for post in site.tags[page.tag] %}
+    <li class="d-flex justify-content-between pl-md-3 pr-md-3">
+      <a href="{{ post.url | absolute_url }}">{{ post.title }}</a>
+      <span class="dash flex-grow-1"></span>
+      <span class="text-muted small">{{ post.date | date: POST_DATE }}</span>
+    </li>
+    {% endfor %}
+  </ul>
+</div>
--- a/_scripts/py/init_all.py
+++ b/_scripts/py/init_all.py
@ -0,0 +1,16 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Automatic invokes all initial scripts for project.
+© 2018-2019 Cotes Chung
+Licensed under MIT
+"""
+
+import update_posts_lastmod
+import pages_generator
+
+
+update_posts_lastmod
+
+pages_generator
--- a/_scripts/py/pages_generator.py
+++ b/_scripts/py/pages_generator.py
@ -0,0 +1,190 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+'''
+Generates HTML pages for Categories and Tags in posts.
+
+Dependencies:
+  - git
+  - ruamel.yaml
+
+© 2018-2019 Cotes Chung
+MIT License
+'''
+
+
+import os
+import glob
+import shutil
+import sys
+import subprocess
+
+from ruamel.yaml import YAML
+from utils.common import get_yaml
+from utils.common import check_py_version
+
+
+DRAFTS_DIR = '_drafts'
+POSTS_DIR = ['_posts']
+
+CATEGORIES_DIR = 'categories'
+CATEGORY_LAYOUT = 'category'
+
+TAG_DIR = 'tags'
+TAG_LAYOUT = 'tag'
+
+LEVEL = 3  # Tree level for current script file.
+
+
+def help():
+    print("Usage: "
+          "   python pages_generator.py [Option]\n\n"
+          "Options:\n"
+          "   -d, --drafts         Enable drafts\n"
+          "   -v, --verbose        Print verbose logs\n")
+
+
+def get_path(dir):
+    path = os.path.abspath(__file__)
+    count = LEVEL
+    r_index = len(path)
+    while r_index > 0:
+        r_index -= 1
+        if (path[r_index] == '/' or path[r_index] == '\\'):
+            count -= 1
+            if count == 0:
+                return path[:r_index + 1] + dir
+
+
+def get_categories():
+    all_categories = []
+    yaml = YAML()
+
+    for dir in POSTS_DIR:
+        path = get_path(dir)
+        for file in glob.glob(os.path.join(path, '*.md')):
+            meta = yaml.load(get_yaml(file)[0])
+
+            if 'category' in meta:
+                if type(meta['category']) == list:
+                    err_msg = (
+                        "[Error] File {} 'category' type"
+                        " can not be LIST!").format(file)
+                    raise Exception(err_msg)
+                else:
+                    if meta['category'] not in all_categories:
+                        all_categories.append(meta['category'])
+            else:
+                if 'categories' in meta:
+                    if type(meta['categories']) == str:
+                        error_msg = (
+                            "[Error] File {} 'categories' type"
+                            " can not be STR!").format(file)
+                        raise Exception(error_msg)
+
+                    for ctg in meta['categories']:
+                        if ctg not in all_categories:
+                            all_categories.append(ctg)
+                else:
+                    err_msg = (
+                        "[Error] File:{} at least "
+                        "have one category.").format(file)
+                    print(err_msg)
+
+    return all_categories
+
+
+def generate_category_pages(is_verbose):
+    categories = get_categories()
+    path = get_path(CATEGORIES_DIR)
+
+    if os.path.exists(path):
+        shutil.rmtree(path)
+
+    os.makedirs(path)
+
+    for category in categories:
+        new_page = path + '/' + category.replace(' ', '-').lower() + '.html'
+        with open(new_page, 'w+', encoding='utf-8') as html:
+            html.write("---\n")
+            html.write("layout: {}\n".format(CATEGORY_LAYOUT))
+            html.write("title: {}\n".format(category))
+            html.write("category: {}\n".format(category))
+            html.write("---")
+
+            if is_verbose:
+                print("[INFO] Created page: " + new_page)
+
+    change = subprocess.getoutput("git status categories -s")
+    if change:
+        print("[INFO] Succeed! {} category-pages created."
+              .format(len(categories)))
+
+
+def get_all_tags():
+    all_tags = []
+    yaml = YAML()
+
+    for dir in POSTS_DIR:
+        path = get_path(dir)
+        for file in glob.glob(os.path.join(path, '*.md')):
+            meta = yaml.load(get_yaml(file)[0])
+
+            if 'tags' in meta:
+                for tag in meta['tags']:
+                    if tag not in all_tags:
+                        all_tags.append(tag)
+            else:
+                raise Exception("Didn't find 'tags' in \
+                  post '{}' !".format(file))
+
+    return all_tags
+
+
+def generate_tag_pages(is_verbose):
+    all_tags = get_all_tags()
+    tag_path = get_path(TAG_DIR)
+
+    if os.path.exists(tag_path):
+        shutil.rmtree(tag_path)
+
+    os.makedirs(tag_path)
+
+    for tag in all_tags:
+        tag_page = tag_path + '/' + tag.replace(' ', '-').lower() + '.html'
+        with open(tag_page, 'w+', encoding='utf-8') as html:
+            html.write("---\n")
+            html.write("layout: {}\n".format(TAG_LAYOUT))
+            html.write("title: {}\n".format(tag))
+            html.write("tag: {}\n".format(tag))
+            html.write("---")
+
+            if is_verbose:
+                print("[INFO] Created page: " + tag_page)
+
+    change = subprocess.getoutput("git status tags -s")
+    if change:
+        print("[INFO] Succeed! {} tag-pages created.".format(len(all_tags)))
+
+
+def main():
+    check_py_version()
+
+    is_verbose = False
+
+    if len(sys.argv) > 1:
+        for arg in sys.argv:
+            if arg != sys.argv[0]:
+                if arg == '-d' or arg == '--drafts':
+                    POSTS_DIR.insert(0, DRAFTS_DIR)
+                elif arg == '-v' or arg == '--verbose':
+                    is_verbose = True
+                else:
+                    help()
+                    return
+
+    generate_category_pages(is_verbose)
+    generate_tag_pages(is_verbose)
+
+
+main()
--- a/_scripts/py/update_posts_lastmod.py
+++ b/_scripts/py/update_posts_lastmod.py
@ -0,0 +1,121 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Update (or create if not existed) field 'seo.date_modified'
+in posts' Front Matter by their latest git commit date.
+
+Dependencies:
+  - git
+  - ruamel.yaml
+
+© 2018-2019 Cotes Chung
+Licensed under MIT
+"""
+
+import sys
+import glob
+import os
+import subprocess
+import shutil
+
+from ruamel.yaml import YAML
+from utils.common import get_yaml
+from utils.common import check_py_version
+
+
+POSTS_PATH = "_posts"
+
+
+def help():
+    print("Usage: "
+          "   python update_posts_lastmod.py [option]\n"
+          "Options:\n"
+          "   -v, --verbose      Print verbose logs\n")
+
+
+def update_lastmod(verbose):
+    count = 0
+    yaml = YAML()
+
+    for post in glob.glob(os.path.join(POSTS_PATH, "*.md")):
+        git_log_count = subprocess.getoutput(
+            "git log --pretty=%ad \"{}\" | wc -l".format(post))
+
+        if git_log_count == "1":
+            continue
+
+        git_lastmod = subprocess.getoutput(
+            "git log -1 --pretty=%ad --date=iso \"{}\"".format(post))
+
+        if not git_lastmod:
+            continue
+
+        lates_commit = subprocess.check_output(
+            ['git', 'log', '-1', '--pretty=%B', post]).decode('utf-8')
+
+        if "[Automation]" in lates_commit and "Lastmod" in lates_commit:
+            continue
+
+        frontmatter, line_num = get_yaml(post)
+        meta = yaml.load(frontmatter)
+
+        if 'seo' in meta:
+            if ('date_modified' in meta['seo'] and
+                    meta['seo']['date_modified'] == git_lastmod):
+                continue
+            else:
+                meta['seo']['date_modified'] = git_lastmod
+        else:
+            meta.insert(line_num, 'seo', dict(date_modified=git_lastmod))
+
+        output = 'new.md'
+        if os.path.isfile(output):
+            os.remove(output)
+
+        with open(output, 'w', encoding='utf-8') as new, \
+                open(post, 'r', encoding='utf-8') as old:
+            new.write("---\n")
+            yaml.dump(meta, new)
+            new.write("---\n")
+            line_num += 2
+
+            lines = old.readlines()
+
+            for line in lines:
+                if line_num > 0:
+                    line_num -= 1
+                    continue
+                else:
+                    new.write(line)
+
+        shutil.move(output, post)
+        count += 1
+
+        if verbose:
+            print("[INFO] update 'lastmod' for:" + post)
+
+    if count > 0:
+        print("[INFO] Success to update lastmod for {} post(s).".format(count))
+
+
+def main():
+    check_py_version()
+
+    verbose = False
+
+    if len(sys.argv) > 1:
+        for arg in sys.argv:
+            if arg == sys.argv[0]:
+                continue
+            else:
+                if arg == '-v' or arg == '--verbose':
+                    verbose = True
+                else:
+                    help()
+                    return
+
+    update_lastmod(verbose)
+
+
+main()
--- a/_scripts/py/utils/common.py
+++ b/_scripts/py/utils/common.py
@ -0,0 +1,43 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+'''
+Common functions to other scripts.
+
+© 2018-2019 Cotes Chung
+MIT License
+'''
+
+import sys
+
+
+def get_yaml(path):
+    """
+    Return the Yaml block of a post and the linenumbers of it.
+    """
+    end = False
+    yaml = ""
+    num = 0
+
+    with open(path, 'r', encoding='utf-8') as f:
+        for line in f.readlines():
+            if line.strip() == '---':
+                if end:
+                    break
+                else:
+                    end = True
+                    continue
+            else:
+                num += 1
+
+            yaml += line
+
+    return yaml, num
+
+
+def check_py_version():
+    if not sys.version_info.major == 3 and sys.version_info.minor >= 5:
+        print("WARNING: This script requires Python 3.5 or higher, "
+              "however you are using Python {}.{}."
+              .format(sys.version_info.major, sys.version_info.minor))
+        sys.exit(1)
--- a/assets/css/_src/fonts.scss
+++ b/assets/css/_src/fonts.scss
@ -0,0 +1,312 @@
+/*
+ * The field 'font-display' is added for Google-fonts.
+ *
+ * See https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,600,700,900|Oswald|Lato
+ *
+ */
+/* latin-ext */
+@font-face {
+  font-family: 'Lato';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v14/S6uyw4BMUTPHjxAwXjeu.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Lato';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v14/S6uyw4BMUTPHjx4wXg.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Oswald';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Oswald Regular'), local('Oswald-Regular'), url(https://fonts.gstatic.com/s/oswald/v16/TK3iWkUHHAIjg752HT8Ghe4.woff2) format('woff2');
+  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Oswald';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Oswald Regular'), local('Oswald-Regular'), url(https://fonts.gstatic.com/s/oswald/v16/TK3iWkUHHAIjg752Fj8Ghe4.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Oswald';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Oswald Regular'), local('Oswald-Regular'), url(https://fonts.gstatic.com/s/oswald/v16/TK3iWkUHHAIjg752Fz8Ghe4.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Oswald';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Oswald Regular'), local('Oswald-Regular'), url(https://fonts.gstatic.com/s/oswald/v16/TK3iWkUHHAIjg752GT8G.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* cyrillic-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qNa7lqDY.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qPK7lqDY.woff2) format('woff2');
+  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* greek-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qNK7lqDY.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* greek */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qO67lqDY.woff2) format('woff2');
+  unicode-range: U+0370-03FF;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qN67lqDY.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qNq7lqDY.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* cyrillic-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmhduz8A.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwkxduz8A.woff2) format('woff2');
+  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* greek-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmxduz8A.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* greek */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlBduz8A.woff2) format('woff2');
+  unicode-range: U+0370-03FF;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmBduz8A.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmRduz8A.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdu.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* cyrillic-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmhduz8A.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwkxduz8A.woff2) format('woff2');
+  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* greek-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmxduz8A.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* greek */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlBduz8A.woff2) format('woff2');
+  unicode-range: U+0370-03FF;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmBduz8A.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmRduz8A.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
+/* cyrillic-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmhduz8A.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwkxduz8A.woff2) format('woff2');
+  unicode-range: U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* greek-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmxduz8A.woff2) format('woff2');
+  unicode-range: U+1F00-1FFF;
+}
+/* greek */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwlBduz8A.woff2) format('woff2');
+  unicode-range: U+0370-03FF;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmBduz8A.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmRduz8A.woff2) format('woff2');
+  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 900;
+  font-display: swap;
+  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v11/6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwlxdu.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}
--- a/assets/css/_src/main.scss
+++ b/assets/css/_src/main.scss
--- a/assets/css/_src/syntax.scss
+++ b/assets/css/_src/syntax.scss
@ -0,0 +1,157 @@
+/*!
+* The syntax highlight.
+* © 2018-2019 Cotes Chung
+* MIT Licensed
+*/
+
+.highlight .hll { background-color: #ffc; }
+.highlight .c { color: #999; } /* Comment */
+.highlight .err { color: #a00; background-color: #faa } /* Error */
+.highlight .k { color: #069; } /* Keyword */
+.highlight .o { color: #555 } /* Operator */
+.highlight .cm { color: #09f; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #099 } /* Comment.Preproc */
+.highlight .c1 { color: #999; } /* Comment.Single */
+.highlight .cs { color: #999; } /* Comment.Special */
+.highlight .gd { background-color: #fcc; border: 1px solid #c00 } /* Generic.Deleted */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gr { color: #f00 } /* Generic.Error */
+.highlight .gh { color: #030; } /* Generic.Heading */
+.highlight .gi { background-color: #cfc; border: 1px solid #0c0 } /* Generic.Inserted */
+.highlight .go { color: #aaa } /* Generic.Output */
+.highlight .gp { color: #009; } /* Generic.Prompt */
+.highlight .gs { } /* Generic.Strong */
+.highlight .gu { color: #030; } /* Generic.Subheading */
+.highlight .gt { color: #9c6 } /* Generic.Traceback */
+.highlight .kc { color: #069; } /* Keyword.Constant */
+.highlight .kd { color: #069; } /* Keyword.Declaration */
+.highlight .kn { color: #069; } /* Keyword.Namespace */
+.highlight .kp { color: #069 } /* Keyword.Pseudo */
+.highlight .kr { color: #069; } /* Keyword.Reserved */
+.highlight .kt { color: #078; } /* Keyword.Type */
+.highlight .m { color: #f60 } /* Literal.Number */
+.highlight .s { color: #d44950 } /* Literal.String */
+.highlight .na { color: #4f9fcf } /* Name.Attribute */
+.highlight .nb { color: #366 } /* Name.Builtin */
+.highlight .nc { color: #0a8; } /* Name.Class */
+.highlight .no { color: #360 } /* Name.Constant */
+.highlight .nd { color: #99f } /* Name.Decorator */
+.highlight .ni { color: #999; } /* Name.Entity */
+.highlight .ne { color: #c00; } /* Name.Exception */
+.highlight .nf { color: #c0f } /* Name.Function */
+.highlight .nl { color: #99f } /* Name.Label */
+.highlight .nn { color: #0cf; } /* Name.Namespace */
+.highlight .nt { color: #2f6f9f; } /* Name.Tag */
+.highlight .nv { color: #033 } /* Name.Variable */
+.highlight .ow { color: #000; } /* Operator.Word */
+.highlight .w { color: #bbb } /* Text.Whitespace */
+.highlight .mf { color: #f60 } /* Literal.Number.Float */
+.highlight .mh { color: #f60 } /* Literal.Number.Hex */
+.highlight .mi { color: #f60 } /* Literal.Number.Integer */
+.highlight .mo { color: #f60 } /* Literal.Number.Oct */
+.highlight .sb { color: #c30 } /* Literal.String.Backtick */
+.highlight .sc { color: #c30 } /* Literal.String.Char */
+.highlight .sd { color: #c30; font-style: italic } /* Literal.String.Doc */
+.highlight .s2 { color: #c30 } /* Literal.String.Double */
+.highlight .se { color: #c30; } /* Literal.String.Escape */
+.highlight .sh { color: #c30 } /* Literal.String.Heredoc */
+.highlight .si { color: #a00 } /* Literal.String.Interpol */
+.highlight .sx { color: #c30 } /* Literal.String.Other */
+.highlight .sr { color: #3aa } /* Literal.String.Regex */
+.highlight .s1 { color: #c30 } /* Literal.String.Single */
+.highlight .ss { color: #fc3 } /* Literal.String.Symbol */
+.highlight .bp { color: #366 } /* Name.Builtin.Pseudo */
+.highlight .vc { color: #033 } /* Name.Variable.Class */
+.highlight .vg { color: #033 } /* Name.Variable.Global */
+.highlight .vi { color: #033 } /* Name.Variable.Instance */
+.highlight .il { color: #f60 } /* Literal.Number.Integer.Long */
+
+/*-- Codes Snippet --*/
+
+div.highlight,
+figure.highlight,
+.highlighter-rouge {
+  background: #f7f7f7;
+}
+
+.highlight {
+  overflow: auto;
+  -moz-box-shadow: inset 0 0 2px #e9ecef;
+  -webkit-box-shadow: inset 0 0 2px #e9ecef;
+  box-shadow: inset 0 0 2px #e9ecef;
+}
+
+.highlight .lineno {
+  padding: .8rem .5rem;
+  min-width: 2rem;
+  text-align: right;
+  color: rgba(140, 134, 126, 0.67);
+  background: rgb(234, 236, 242);
+  -webkit-user-select: none;
+  -khtml-user-select: none;
+  -moz-user-select: none;
+  -ms-user-select: none;
+  -o-user-select: none;
+  user-select: none;
+}
+.highlight table {
+  padding: 0;
+  border: 0;
+}
+
+.highlight td {
+  padding: 0;
+  border: 0;
+}
+
+.highlight pre {
+  margin-bottom: 0;
+  font-size: .85rem;
+  line-height: 1.4rem;
+  word-wrap: normal;  /* Fixed Safari overflow-x */
+}
+
+.highlight table td pre {
+  overflow: visible;  /* Fixed iOS safari overflow-x */
+  word-break: normal; /* Fixed iOS safari linenos code break */
+}
+
+/* Override BS Inline-code style */
+.highlighter-rouge {
+  color: black;
+  margin-bottom: 1.2em;
+}
+
+code {
+  -webkit-hyphens: none;
+  -ms-hyphens: none;
+  -moz-hyphens: none;
+  hyphens: none;
+}
+
+code.highlighter-rouge {
+  padding: 2px 4px;
+  margin: 0 .3rem;
+  border-radius: 4px;
+  border: 1px solid #e9ecef;
+}
+
+td.rouge-code {
+  padding-left: 1rem;
+  padding-right: 1rem;
+}
+
+/* code snippet radius */
+.highlighter-rouge,
+.highlight {
+  border-radius: 5px;
+}
+
+
+/* Hide line numbers for code snippets without specific language */
+div[class^='highlighter-rouge'] pre.lineno {
+  display: none;
+}
+div[class^='highlighter-rouge'] td.rouge-code {
+  padding: .8rem 1rem;
+}
--- a/assets/css/styles.scss
+++ b/assets/css/styles.scss
@ -0,0 +1,9 @@
+---
+# Aggregation of CSS files.
+# © 2018-2019 Cotes Chung
+# MIT License
+---
+
+@import "_src/main";
+@import "_src/syntax";
+@import "_src/fonts";
--- a/assets/data/proxy.json
+++ b/assets/data/proxy.json
@ -0,0 +1 @@
+{"proxyUrl":"https://your-gae.appspot.com/query?id=the_secrt_id"}
--- a/assets/img/favicons/android-icon-144x144.png
+++ b/assets/img/favicons/android-icon-144x144.png
--- a/assets/img/favicons/android-icon-192x192.png
+++ b/assets/img/favicons/android-icon-192x192.png
--- a/assets/img/favicons/android-icon-36x36.png
+++ b/assets/img/favicons/android-icon-36x36.png
--- a/assets/img/favicons/android-icon-48x48.png
+++ b/assets/img/favicons/android-icon-48x48.png
--- a/assets/img/favicons/android-icon-72x72.png
+++ b/assets/img/favicons/android-icon-72x72.png
--- a/assets/img/favicons/android-icon-96x96.png
+++ b/assets/img/favicons/android-icon-96x96.png
--- a/assets/img/favicons/apple-icon-114x114.png
+++ b/assets/img/favicons/apple-icon-114x114.png
--- a/assets/img/favicons/apple-icon-120x120.png
+++ b/assets/img/favicons/apple-icon-120x120.png
--- a/assets/img/favicons/apple-icon-144x144.png
+++ b/assets/img/favicons/apple-icon-144x144.png
--- a/assets/img/favicons/apple-icon-152x152.png
+++ b/assets/img/favicons/apple-icon-152x152.png
--- a/assets/img/favicons/apple-icon-180x180.png
+++ b/assets/img/favicons/apple-icon-180x180.png
--- a/assets/img/favicons/apple-icon-57x57.png
+++ b/assets/img/favicons/apple-icon-57x57.png
--- a/assets/img/favicons/apple-icon-60x60.png
+++ b/assets/img/favicons/apple-icon-60x60.png
--- a/assets/img/favicons/apple-icon-72x72.png
+++ b/assets/img/favicons/apple-icon-72x72.png
--- a/assets/img/favicons/apple-icon-76x76.png
+++ b/assets/img/favicons/apple-icon-76x76.png
--- a/assets/img/favicons/apple-icon-precomposed.png
+++ b/assets/img/favicons/apple-icon-precomposed.png
--- a/assets/img/favicons/apple-icon.png
+++ b/assets/img/favicons/apple-icon.png
--- a/assets/img/favicons/browserconfig.xml
+++ b/assets/img/favicons/browserconfig.xml
@ -0,0 +1,17 @@
+---
+# A part of the Favicons
+# © 2019 Cotes Chung
+# MIT License
+layout: compress
+---
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+  <msapplication>
+    <tile>
+      <square70x70logo src="{{ site.baseurl }}/assets/img/favicons/ms-icon-70x70.png" />
+      <square150x150logo src="{{ site.baseurl }}/assets/img/favicons/ms-icon-150x150.png" />
+      <square310x310logo src="{{ site.baseurl }}/assets/img/favicons/ms-icon-310x310.png" />
+      <TileColor>#ffffff</TileColor>
+    </tile>
+  </msapplication>
+</browserconfig>
--- a/assets/img/favicons/favicon-16x16.png
+++ b/assets/img/favicons/favicon-16x16.png
--- a/assets/img/favicons/favicon-32x32.png
+++ b/assets/img/favicons/favicon-32x32.png
--- a/assets/img/favicons/favicon-96x96.png
+++ b/assets/img/favicons/favicon-96x96.png
--- a/assets/img/favicons/favicon.ico
+++ b/assets/img/favicons/favicon.ico
--- a/assets/img/favicons/manifest.json
+++ b/assets/img/favicons/manifest.json
@ -0,0 +1,48 @@
+---
+# A part of the Favicons
+# © 2019 Cotes Chung
+# MIT License
+layout: compress
+---
+
+{
+ "name": "App",
+ "icons": [
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-36x36.png",
+   "sizes": "36x36",
+   "type": "image\/png",
+   "density": "0.75"
+  },
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-48x48.png",
+   "sizes": "48x48",
+   "type": "image\/png",
+   "density": "1.0"
+  },
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-72x72.png",
+   "sizes": "72x72",
+   "type": "image\/png",
+   "density": "1.5"
+  },
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-96x96.png",
+   "sizes": "96x96",
+   "type": "image\/png",
+   "density": "2.0"
+  },
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-144x144.png",
+   "sizes": "144x144",
+   "type": "image\/png",
+   "density": "3.0"
+  },
+  {
+   "src": "{{ site.baseurl }}\/assets\/img\/favicons\/android-icon-192x192.png",
+   "sizes": "192x192",
+   "type": "image\/png",
+   "density": "4.0"
+  }
+ ]
+}
--- a/assets/img/favicons/ms-icon-144x144.png
+++ b/assets/img/favicons/ms-icon-144x144.png
--- a/assets/img/favicons/ms-icon-150x150.png
+++ b/assets/img/favicons/ms-icon-150x150.png
--- a/assets/img/favicons/ms-icon-310x310.png
+++ b/assets/img/favicons/ms-icon-310x310.png
--- a/assets/img/favicons/ms-icon-70x70.png
+++ b/assets/img/favicons/ms-icon-70x70.png
--- a/assets/img/sample/devices-mockup.png
+++ b/assets/img/sample/devices-mockup.png
--- a/assets/img/sample/download-icons.png
+++ b/assets/img/sample/download-icons.png
--- a/assets/img/sample/mockup.png
+++ b/assets/img/sample/mockup.png
--- a/assets/img/sample/profile.jpg
+++ b/assets/img/sample/profile.jpg
--- a/assets/img/sample/upload-image.png
+++ b/assets/img/sample/upload-image.png
--- a/assets/js/_src/_commons/back-to-top.js
+++ b/assets/js/_src/_commons/back-to-top.js
@ -0,0 +1,18 @@
+/*
+Reference: https://bootsnipp.com/snippets/featured/link-to-top-page
+*/
+$(window).scroll(function() {
+  if ($(this).scrollTop() > 50
+      && $('#sidebar-trigger').css('display') == 'none') {
+    $('#back-to-top').fadeIn();
+  } else {
+    $('#back-to-top').fadeOut();
+  }
+});
+
+$(function() {
+  $('#back-to-top').click(function() {
+    $('body,html').animate({scrollTop: 0}, 800);
+    return false;
+  });
+});
--- a/assets/js/_src/_commons/search-display.js
+++ b/assets/js/_src/_commons/search-display.js
@ -0,0 +1,88 @@
+/*
+* This script make #search-result-wrap switch to hidden or shown automatically.
+* © 2018-2019 Cotes Chung
+* MIT License
+*/
+
+$(function() {
+
+  var offset = 0;
+
+  var btnCancel = $('#search-wrap + a');
+  var btnSbTrigger = $('#sidebar-trigger');
+  var btnSearchTrigger = $('#search-trigger');
+  var btnCloseSearch = $('#search-wrap + a');
+  var topbarTitle = $('#topbar-title');
+  var searchWrap = $('#search-wrap');
+
+  /*--- Actions in small screens ---*/
+
+  btnSearchTrigger.click(function() {
+
+    offset = $(window).scrollTop();
+
+    $('body').addClass('no-scroll');
+    // $('body').css('top', -offset + 'px');
+    // $('html,body').addClass('input-focus');
+
+    btnSbTrigger.addClass('hidden');
+    topbarTitle.addClass('hidden');
+    btnSearchTrigger.addClass('hidden');
+
+    searchWrap.addClass('shown flex-grow-1');
+    btnCancel.addClass('shown');
+
+    $('#main').addClass('hidden');
+    $('#search-result-wrap').addClass('shown');
+    $('#search-input').focus();
+
+  });
+
+  btnCancel.click(function() {
+
+    btnCancel.removeClass('shown');
+
+    $('#search-input').val('');
+    $('#search-results').empty();
+
+    searchWrap.removeClass('shown flex-grow-1');
+
+    btnSbTrigger.removeClass('hidden');
+    topbarTitle.removeClass('hidden');
+    btnSearchTrigger.removeClass('hidden');
+
+    $('#main').removeClass('hidden');
+    $('#search-result-wrap').removeClass('shown');
+
+    $('body').removeClass('no-scroll');
+    // $('html,body').removeClass('input-focus');
+
+    $('html,body').scrollTop(offset);
+
+  });
+
+  /*--- Actions in large screens. ---*/
+
+  var isShown = false;
+
+  $('#search-input').on('input', function(){
+    if (isShown == false) {
+      offset = $(window).scrollTop();
+      $('body,html').scrollTop(0);
+      $('#search-result-wrap').addClass('shown');
+      $('#main').addClass('hidden');
+      isShown = true;
+    }
+  });
+
+  $('#search-input').on('keyup', function(e){
+    var input = $('#search-input').val();
+    if (e.keyCode == 8 && input == '' && btnCloseSearch.css('display') == 'none') {
+      $('#main').removeClass('hidden');
+      $('#search-result-wrap').removeClass('shown');
+      $('body,html').scrollTop(offset);
+      isShown = false;
+    }
+  });
+
+});
--- a/assets/js/_src/_commons/sidebar.js
+++ b/assets/js/_src/_commons/sidebar.js
@ -0,0 +1,54 @@
+/**
+ * Expand or close the sidebar in mobile screens.
+ * © 2018-2019 Cotes Chung
+ * MIT License
+ */
+$(function(){
+
+  var isExpanded = false;
+
+  $("#sidebar-trigger").click(function() {
+    if (isExpanded == false) {
+      $("#sidebar").addClass("sidebar-expand");
+      openModal();
+      isExpanded = true;
+    }
+  });
+
+  $("#mask").click(function() {
+    $("#sidebar").removeClass("sidebar-expand");
+    closeModal();
+    isExpanded = false;
+  });
+
+  /**
+  * ModalHelper helpers resolve the modal scrolling issue on mobile devices
+  * https://github.com/twbs/bootstrap/issues/15852
+  * requires document.scrollingElement polyfill https://github.com/yangg/scrolling-element
+  */
+  var ModalHelper = (function(bodyCls) {
+    var scrollTop;
+    return {
+      afterOpen: function() {
+        scrollTop = document.scrollingElement.scrollTop;
+        document.body.classList.add(bodyCls);
+        document.body.style.top = -scrollTop + 'px';
+      },
+      beforeClose: function() {
+        document.body.classList.remove(bodyCls);
+        // scrollTop lost after set position:fixed, restore it back.
+        document.scrollingElement.scrollTop = scrollTop;
+        document.body.style.top = '';
+      }
+    };
+  })('no-scroll');
+
+  function openModal() {
+    ModalHelper.afterOpen();
+  }
+
+  function closeModal() {
+    ModalHelper.beforeClose();
+  }
+
+});
--- a/assets/js/_src/_commons/tooltip.js
+++ b/assets/js/_src/_commons/tooltip.js
@ -0,0 +1,8 @@
+/**
+* Initial Bootstrap Tooltip.
+* © 2019 Cotes Chung
+* MIT License
+*/
+$(function () {
+  $('[data-toggle="tooltip"]').tooltip({placement: "auto"});
+})
--- a/assets/js/_src/_commons/topbar-switch.js
+++ b/assets/js/_src/_commons/topbar-switch.js
@ -0,0 +1,64 @@
+/*
+ * Hide Header on scroll down
+ * © 2018-2019 Cotes Chung
+ * MIT License
+ */
+$(function() {
+
+  var didScroll;
+  var lastScrollTop = 0;
+  var delta = 5;
+  var topbarHeight = $('#topbar').outerHeight();
+
+  $(window).scroll(function(event) {
+    if ($("#topbar-title").is(":hidden")) { // Not in small screens
+      didScroll = true;
+    }
+  });
+
+  setInterval(function() {
+    if (didScroll) {
+      hasScrolled();
+      didScroll = false;
+    }
+  }, 250);
+
+  function hasScrolled() {
+    var st = $(this).scrollTop();
+
+    // Make sure they scroll more than delta
+    if (Math.abs(lastScrollTop - st) <= delta)
+      return;
+
+    if (st > lastScrollTop && st > topbarHeight) {
+      // Scroll Down
+      $('#topbar').removeClass('topbar-down').addClass('topbar-up');
+
+      if ( $('#toc-wrap').length > 0) {
+        $('#toc-wrap').removeClass('topbar-down');
+      }
+
+      if ( $('.panel-group').length > 0) {
+        $('.panel-group').removeClass('topbar-down');
+      }
+
+      if ($('#search-input').is(':focus')) {
+        $('#search-input').blur(); // remove focus
+      }
+
+    } else {
+      // Scroll Up
+      if (st + $(window).height() < $(document).height()) {
+        $('#topbar').removeClass('topbar-up').addClass('topbar-down');
+        if ( $('#toc-wrap').length > 0) {
+          $('#toc-wrap').addClass('topbar-down');
+        }
+        if ( $('.panel-group').length > 0) {
+          $('.panel-group').addClass('topbar-down');
+        }
+      }
+    }
+
+    lastScrollTop = st;
+  }
+});
--- a/assets/js/_src/_commons/topbar-title.js
+++ b/assets/js/_src/_commons/topbar-title.js
@ -0,0 +1,44 @@
+/*
+* Topbar title auto change while scrolling in mobile screens.
+* © 2018-2019 Cotes Chung
+* MIT License
+*/
+$(function(){
+
+  var DEFAULT = $("#topbar-title").text().trim();
+  var title = ($("div.post>h1").length > 0) ?
+          $("div.post>h1").text().trim() : $("h1").text().trim();
+
+  if ($("#page-category").length || $("#page-tag").length) {
+    /* The title in Category or Tag page will be '<title> <count_of_posts>' */
+    if (/\s/.test(title)) {
+      title = title.replace(/[0-9]/g, '').trim();
+    }
+  }
+
+  // Replace topbar title while scroll screens.
+  $(window).scroll(function () {
+    if ($("#post-list").length // in Home page
+      || $("div.post>h1").is(":hidden") // is tab pages
+      || $("#topbar-title").is(":hidden") // not mobile screens
+      || $("#sidebar.sidebar-expand").length) { // when the sidebar trigger is clicked
+      return false;
+    }
+
+    if ($(this).scrollTop() >= 95) {
+      if ($("#topbar-title").text() != title) {
+        $("#topbar-title").text(title);
+      }
+    } else {
+      if ($("#topbar-title").text() != DEFAULT) {
+        $("#topbar-title").text(DEFAULT);
+      }
+    }
+  })
+
+  // Click title remove hover effect.
+  $('#topbar-title').click(function() {
+    $('body,html').animate({scrollTop: 0}, 800);
+  });
+
+});
--- a/assets/js/_src/category-collapse.js
+++ b/assets/js/_src/category-collapse.js
@ -0,0 +1,31 @@
+/*
+ * Tab 'Categories' expand/close effect.
+ * © 2018-2019 Cotes Chung
+ * MIT License
+ */
+
+$(function() {
+  var child_prefix = "l_";
+  var parent_prefix = "h_";
+
+  // close up Top
+  $(".collapse").on("hide.bs.collapse", function() { // Bootstrap collapse events.
+    var parent_id = parent_prefix + $(this).attr('id').substring(child_prefix.length);
+    if (parent_id) {
+      $("#" + parent_id + " .far.fa-folder-open").attr("class", "far fa-folder fa-fw");
+      $("#" + parent_id + " i.fas.fa-angle-up").addClass("flip");
+      $("#" + parent_id).removeClass("hide-border-bottom");
+    }
+  });
+
+  // expand Top Category
+  $(".collapse").on("show.bs.collapse", function() {
+    var parent_id = parent_prefix + $(this).attr('id').substring(child_prefix.length);
+    if (parent_id) {
+      $("#" + parent_id + " .far.fa-folder").attr("class", "far fa-folder-open fa-fw");
+      $("#" + parent_id + " i.fas.fa-angle-up").removeClass("flip");
+      $("#" + parent_id).addClass("hide-border-bottom");
+    }
+  });
+
+});
--- a/assets/js/_src/pageviews.js
+++ b/assets/js/_src/pageviews.js
@ -0,0 +1,111 @@
+/**
+ * Count pageviews form GA or local cache file.
+ *
+ * Dependences:
+ *   - jQuery
+ *   - countUp.js(https://github.com/inorganik/countUp.js)
+ *
+ * © 2018-2019 Cotes Chung
+ * MIT License
+ */
+
+function countUp(min, max, dest) {
+  if (min < max) {
+    var numAnim = new CountUp(dest, min, max);
+    if (!numAnim.error) {
+      numAnim.start();
+    } else {
+      console.error(numAnim.error);
+    }
+  }
+}
+
+function countPV(path, rows) {
+  /* path permalink looks like: '/posts/post-title/' */
+  var fileName = path.replace(/\/posts\//g, '').replace(/\//g, '.html'); /* e.g. post-title.html */
+  var count = 0;
+
+  var _v2_url = path.replace(/posts\//g, ''); /* the v2.0+ blog permalink: "/post-title/" */
+
+  for (var i = 0; i < rows.length; ++i) {
+    var gaPath = rows[i][0];
+    if (gaPath == path ||
+      gaPath == _v2_url ||
+      gaPath.concat('/') == _v2_url ||
+      gaPath.slice(gaPath.lastIndexOf('/') + 1) === fileName) { // old permalink record
+      count += parseInt(rows[i][1]);
+    }
+  }
+
+  return count;
+}
+
+function displayPageviews(rows, hasInit) {
+  if (rows === undefined) {
+    return;
+  }
+
+  if ($("#post-list").length > 0) { // the Home page
+    $(".post-preview").each(function() {
+      var path = $(this).children("h1").children("a").attr("href");
+      var count = countPV(path, rows);
+      count = (count == 0 ? 1 : count);
+
+      if (!hasInit) {
+        $(this).find('.pageviews').text(count);
+      } else {
+        var initCount = parseInt($(this).find('.pageviews').text());
+        if (count > initCount) {
+          countUp(initCount, count, $(this).find('.pageviews').attr('id'));
+        }
+      }
+    });
+
+  } else if ($(".post").length > 0) { // the post
+    var path = window.location.pathname;
+    var count = countPV(path, rows);
+    count = (count == 0 ? 1 : count);
+
+    if (!hasInit) {
+      $('#pv').text(count);
+    } else {
+      var initCount = parseInt($('#pv').text());
+      if (count > initCount) {
+        countUp(initCount, count, 'pv');
+      }
+    }
+  }
+
+}
+
+$(function() {
+  // load pageview if this page has .pageviews
+  if ($('.pageviews').length > 0) {
+    var hasInit = false;
+
+    // Get data from daily cache.
+    $.getJSON('/assets/data/pageviews.json', function(data) {
+      displayPageviews(data.rows, hasInit);
+      hasInit = true;
+    });
+
+    $.getJSON('/assets/data/proxy.json', function(data) {
+      $.ajax({
+        url: data.proxyUrl,
+        dataType: 'jsonp',
+        timeout: 2000,
+        success: function(data) {
+          displayPageviews(data.rows, hasInit);
+        },
+        error: function(xhr, status, err) {
+          console.log("Failed to load pageviews from proxy server.");
+          xhr.abort();
+          return;
+        }
+      });
+
+    });
+
+  } // endif
+
+});
--- a/assets/js/_src/timeago.js
+++ b/assets/js/_src/timeago.js
@ -0,0 +1,77 @@
+/*
+ * Caculate the Timeago
+ *
+ * © 2019 Cotes Chung
+ * MIT Licensed
+ */
+
+$(function() {
+
+  function timeago(date, isLastmod) {
+    var now = new Date();
+    var past = new Date(date);
+    var seconds = Math.floor((now - past) / 1000);
+
+    var year = Math.floor(seconds / 31536000);
+    if (year >= 1) {
+      return year + " year" + (year > 1 ? "s" : "") + " ago";
+    }
+
+    var month = Math.floor(seconds / 2592000);
+    if (month >= 1) {
+      return month + " month" + (month > 1 ? "s" : "") + " ago";
+    }
+
+    var week = Math.floor(seconds / 604800);
+    if (week >= 1) {
+      return week + " week" + (week > 1 ? "s" : "") + " ago";
+    }
+
+    var day = Math.floor(seconds / 86400);
+    if (day >= 1) {
+      return day + " day" + (day > 1 ? "s" : "") + " ago";
+    }
+
+    var hour = Math.floor(seconds / 3600);
+    if (hour >= 1) {
+      return hour + " hour" + (hour > 1 ? "s" : "") + " ago";
+    }
+
+    var minute = Math.floor(seconds / 60);
+    if (minute >= 1) {
+      return minute + " minute" + (minute > 1 ? "s" : "") + " ago";
+    }
+
+    return (isLastmod? "just" : "Just") + " now";
+  }
+
+
+  function updateTimeago() {
+    $(".timeago").each(function() {
+      if ($(this).children("i").length > 0) {
+        var isLastmod = $(this).hasClass('lastmod');
+        var node = $(this).children("i");
+        var date = node.text();   /* ISO Dates: 'YYYY-MM-DDTHH:MM:SSZ' */
+        $(this).text(timeago(date, isLastmod));
+        $(this).append(node);
+      }
+    });
+
+    if (vote == 0 && intervalId != undefined) {
+      clearInterval(intervalId);  /* stop interval */
+    }
+    return vote;
+  }
+
+
+  var vote = $(".timeago").length;
+  if (vote == 0) {
+    return;
+  }
+
+  if (updateTimeago() > 0) {      /* run immediately */
+    vote = $(".timeago").length;  /* resume */
+    var intervalId = setInterval(updateTimeago, 60000); /* loop every minutes */
+  }
+
+});
--- a/assets/js/dist/_commons/back-to-top.min.js
+++ b/assets/js/dist/_commons/back-to-top.min.js
@ -0,0 +1 @@
+$(window).scroll(function(){if($(this).scrollTop()>50&&$("#sidebar-trigger").css("display")=="none"){$("#back-to-top").fadeIn()}else{$("#back-to-top").fadeOut()}});$(function(){$("#back-to-top").click(function(){$("body,html").animate({scrollTop:0},800);return false})});
--- a/assets/js/dist/_commons/search-display.min.js
+++ b/assets/js/dist/_commons/search-display.min.js
@ -0,0 +1 @@
+$(function(){var g=0;var e=$("#search-wrap + a");var c=$("#sidebar-trigger");var h=$("#search-trigger");var d=$("#search-wrap + a");var a=$("#topbar-title");var b=$("#search-wrap");h.click(function(){g=$(window).scrollTop();$("body").addClass("no-scroll");c.addClass("hidden");a.addClass("hidden");h.addClass("hidden");b.addClass("shown flex-grow-1");e.addClass("shown");$("#main").addClass("hidden");$("#search-result-wrap").addClass("shown");$("#search-input").focus()});e.click(function(){e.removeClass("shown");$("#search-input").val("");$("#search-results").empty();b.removeClass("shown flex-grow-1");c.removeClass("hidden");a.removeClass("hidden");h.removeClass("hidden");$("#main").removeClass("hidden");$("#search-result-wrap").removeClass("shown");$("body").removeClass("no-scroll");$("html,body").scrollTop(g)});var f=false;$("#search-input").on("input",function(){if(f==false){g=$(window).scrollTop();$("body,html").scrollTop(0);$("#search-result-wrap").addClass("shown");$("#main").addClass("hidden");f=true}});$("#search-input").on("keyup",function(j){var i=$("#search-input").val();if(j.keyCode==8&&i==""&&d.css("display")=="none"){$("#main").removeClass("hidden");$("#search-result-wrap").removeClass("shown");$("body,html").scrollTop(g);f=false}})});
--- a/assets/js/dist/_commons/sidebar.min.js
+++ b/assets/js/dist/_commons/sidebar.min.js
@ -0,0 +1 @@
+$(function(){var d=false;$("#sidebar-trigger").click(function(){if(d==false){$("#sidebar").addClass("sidebar-expand");b();d=true}});$("#mask").click(function(){$("#sidebar").removeClass("sidebar-expand");c();d=false});var a=(function(e){var f;return{afterOpen:function(){f=document.scrollingElement.scrollTop;document.body.classList.add(e);document.body.style.top=-f+"px"},beforeClose:function(){document.body.classList.remove(e);document.scrollingElement.scrollTop=f;document.body.style.top=""}}})("no-scroll");function b(){a.afterOpen()}function c(){a.beforeClose()}});
--- a/assets/js/dist/_commons/tooltip.min.js
+++ b/assets/js/dist/_commons/tooltip.min.js
@ -0,0 +1 @@
+$(function(){$('[data-toggle="tooltip"]').tooltip({placement:"auto"})});
--- a/assets/js/dist/_commons/topbar-switch.min.js
+++ b/assets/js/dist/_commons/topbar-switch.min.js
@ -0,0 +1 @@
+$(function(){var d;var c=0;var e=5;var b=$("#topbar").outerHeight();$(window).scroll(function(f){if($("#topbar-title").is(":hidden")){d=true}});setInterval(function(){if(d){a();d=false}},250);function a(){var f=$(this).scrollTop();if(Math.abs(c-f)<=e){return}if(f>c&&f>b){$("#topbar").removeClass("topbar-down").addClass("topbar-up");if($("#toc-wrap").length>0){$("#toc-wrap").removeClass("topbar-down")}if($(".panel-group").length>0){$(".panel-group").removeClass("topbar-down")}if($("#search-input").is(":focus")){$("#search-input").blur()}}else{if(f+$(window).height()<$(document).height()){$("#topbar").removeClass("topbar-up").addClass("topbar-down");if($("#toc-wrap").length>0){$("#toc-wrap").addClass("topbar-down")}if($(".panel-group").length>0){$(".panel-group").addClass("topbar-down")}}}c=f}});
--- a/assets/js/dist/_commons/topbar-title.min.js
+++ b/assets/js/dist/_commons/topbar-title.min.js
@ -0,0 +1 @@
+$(function(){var a=$("#topbar-title").text().trim();var b=($("div.post>h1").length>0)?$("div.post>h1").text().trim():$("h1").text().trim();if($("#page-category").length||$("#page-tag").length){if(/\s/.test(b)){b=b.replace(/[0-9]/g,"").trim()}}$(window).scroll(function(){if($("#post-list").length||$("div.post>h1").is(":hidden")||$("#topbar-title").is(":hidden")||$("#sidebar.sidebar-expand").length){return false}if($(this).scrollTop()>=95){if($("#topbar-title").text()!=b){$("#topbar-title").text(b)}}else{if($("#topbar-title").text()!=a){$("#topbar-title").text(a)}}});$("#topbar-title").click(function(){$("body,html").animate({scrollTop:0},800)})});
--- a/assets/js/dist/category-collapse.min.js
+++ b/assets/js/dist/category-collapse.min.js
@ -0,0 +1 @@
+$(function(){var b="l_";var a="h_";$(".collapse").on("hide.bs.collapse",function(){var c=a+$(this).attr("id").substring(b.length);if(c){$("#"+c+" .far.fa-folder-open").attr("class","far fa-folder fa-fw");$("#"+c+" i.fas.fa-angle-up").addClass("flip");$("#"+c).removeClass("hide-border-bottom")}});$(".collapse").on("show.bs.collapse",function(){var c=a+$(this).attr("id").substring(b.length);if(c){$("#"+c+" .far.fa-folder").attr("class","far fa-folder-open fa-fw");$("#"+c+" i.fas.fa-angle-up").removeClass("flip");$("#"+c).addClass("hide-border-bottom")}})});
--- a/assets/js/dist/commons.js
+++ b/assets/js/dist/commons.js
@ -0,0 +1,12 @@
+---
+# Aggregation of common JS.
+# © 2018-2019 Cotes Chung
+# MIT License
+---
+
+{% include_relative _commons/back-to-top.min.js %}
+{% include_relative _commons/search-display.min.js %}
+{% include_relative _commons/sidebar.min.js %}
+{% include_relative _commons/topbar-switch.min.js %}
+{% include_relative _commons/topbar-title.min.js %}
+{% include_relative _commons/tooltip.min.js %}
--- a/assets/js/dist/countUp.min.js
+++ b/assets/js/dist/countUp.min.js
@ -0,0 +1 @@
+var CountUp=function(h,b,i,e,g,n){var m=this;m.version=function(){return"1.9.3"};m.options={useEasing:true,useGrouping:true,separator:",",decimal:".",easingFn:c,formattingFn:d,prefix:"",suffix:"",numerals:[]};if(n&&typeof n==="object"){for(var k in m.options){if(n.hasOwnProperty(k)&&n[k]!==null){m.options[k]=n[k]}}}if(m.options.separator===""){m.options.useGrouping=false}else{m.options.separator=""+m.options.separator}var a=0;var l=["webkit","moz","ms","o"];for(var j=0;j<l.length&&!window.requestAnimationFrame;++j){window.requestAnimationFrame=window[l[j]+"RequestAnimationFrame"];window.cancelAnimationFrame=window[l[j]+"CancelAnimationFrame"]||window[l[j]+"CancelRequestAnimationFrame"]}if(!window.requestAnimationFrame){window.requestAnimationFrame=function(s,p){var o=new Date().getTime();var q=Math.max(0,16-(o-a));var r=window.setTimeout(function(){s(o+q)},q);a=o+q;return r}}if(!window.cancelAnimationFrame){window.cancelAnimationFrame=function(o){clearTimeout(o)}}function d(t){var v=(t<0),p,s,r,q,u,o;t=Math.abs(t).toFixed(m.decimals);t+="";p=t.split(".");s=p[0];r=p.length>1?m.options.decimal+p[1]:"";if(m.options.useGrouping){q="";for(u=0,o=s.length;u<o;++u){if(u!==0&&((u%3)===0)){q=m.options.separator+q}q=s[o-u-1]+q}s=q}if(m.options.numerals.length){s=s.replace(/[0-9]/g,function(x){return m.options.numerals[+x]});r=r.replace(/[0-9]/g,function(x){return m.options.numerals[+x]})}return(v?"-":"")+m.options.prefix+s+r+m.options.suffix}function c(p,o,r,q){return r*(-Math.pow(2,-10*p/q)+1)*1024/1023+o}function f(o){return(typeof o==="number"&&!isNaN(o))}m.initialize=function(){if(m.initialized){return true}m.error="";m.d=(typeof h==="string")?document.getElementById(h):h;if(!m.d){m.error="[CountUp] target is null or undefined";return false}m.startVal=Number(b);m.endVal=Number(i);if(f(m.startVal)&&f(m.endVal)){m.decimals=Math.max(0,e||0);m.dec=Math.pow(10,m.decimals);m.duration=Number(g)*1000||2000;m.countDown=(m.startVal>m.endVal);m.frameVal=m.startVal;m.initialized=true;return true}else{m.error="[CountUp] startVal ("+b+") or endVal ("+i+") is not a number";return false}};m.printValue=function(p){var o=m.options.formattingFn(p);if(m.d.tagName==="INPUT"){this.d.value=o}else{if(m.d.tagName==="text"||m.d.tagName==="tspan"){this.d.textContent=o}else{this.d.innerHTML=o}}};m.count=function(p){if(!m.startTime){m.startTime=p}m.timestamp=p;var o=p-m.startTime;m.remaining=m.duration-o;if(m.options.useEasing){if(m.countDown){m.frameVal=m.startVal-m.options.easingFn(o,0,m.startVal-m.endVal,m.duration)}else{m.frameVal=m.options.easingFn(o,m.startVal,m.endVal-m.startVal,m.duration)}}else{if(m.countDown){m.frameVal=m.startVal-((m.startVal-m.endVal)*(o/m.duration))}else{m.frameVal=m.startVal+(m.endVal-m.startVal)*(o/m.duration)}}if(m.countDown){m.frameVal=(m.frameVal<m.endVal)?m.endVal:m.frameVal}else{m.frameVal=(m.frameVal>m.endVal)?m.endVal:m.frameVal}m.frameVal=Math.round(m.frameVal*m.dec)/m.dec;m.printValue(m.frameVal);if(o<m.duration){m.rAF=requestAnimationFrame(m.count)}else{if(m.callback){m.callback()}}};m.start=function(o){if(!m.initialize()){return}m.callback=o;m.rAF=requestAnimationFrame(m.count)};m.pauseResume=function(){if(!m.paused){m.paused=true;cancelAnimationFrame(m.rAF)}else{m.paused=false;delete m.startTime;m.duration=m.remaining;m.startVal=m.frameVal;requestAnimationFrame(m.count)}};m.reset=function(){m.paused=false;delete m.startTime;m.initialized=false;if(m.initialize()){cancelAnimationFrame(m.rAF);m.printValue(m.startVal)}};m.update=function(o){if(!m.initialize()){return}o=Number(o);if(!f(o)){m.error="[CountUp] update() - new endVal is not a number: "+o;return}m.error="";if(o===m.frameVal){return}cancelAnimationFrame(m.rAF);m.paused=false;delete m.startTime;m.startVal=m.frameVal;m.endVal=o;m.countDown=(m.startVal>m.endVal);m.rAF=requestAnimationFrame(m.count)};if(m.initialize()){m.printValue(m.startVal)}};
--- a/assets/js/dist/pageviews.min.js
+++ b/assets/js/dist/pageviews.min.js
@ -0,0 +1 @@
+function countUp(c,a,b){if(c<a){var d=new CountUp(b,c,a);if(!d.error){d.start()}else{console.error(d.error)}}}function countPV(f,e){var g=f.replace(/\/posts\//g,"").replace(/\//g,".html");var d=0;var c=f.replace(/posts\//g,"");for(var b=0;b<e.length;++b){var a=e[b][0];if(a==f||a==c||a.concat("/")==c||a.slice(a.lastIndexOf("/")+1)===g){d+=parseInt(e[b][1])}}return d}function displayPageviews(d,b){if(d===undefined){return}if($("#post-list").length>0){$(".post-preview").each(function(){var h=$(this).children("h1").children("a").attr("href");var g=countPV(h,d);g=(g==0?1:g);if(!b){$(this).find(".pageviews").text(g)}else{var f=parseInt($(this).find(".pageviews").text());if(g>f){countUp(f,g,$(this).find(".pageviews").attr("id"))}}})}else{if($(".post").length>0){var e=window.location.pathname;var c=countPV(e,d);c=(c==0?1:c);if(!b){$("#pv").text(c)}else{var a=parseInt($("#pv").text());if(c>a){countUp(a,c,"pv")}}}}}$(function(){if($(".pageviews").length>0){var a=false;$.getJSON("/assets/data/pageviews.json",function(b){displayPageviews(b.rows,a);a=true});$.getJSON("/assets/data/proxy.json",function(b){$.ajax({url:b.proxyUrl,dataType:"jsonp",timeout:2000,success:function(c){displayPageviews(c.rows,a)},error:function(e,c,d){console.log("Failed to load pageviews from proxy server.");e.abort();return}})})}});
--- a/assets/js/dist/timeago.min.js
+++ b/assets/js/dist/timeago.min.js
@ -0,0 +1 @@
+$(function(){function d(h,g){var f=new Date();var o=new Date(h);var n=Math.floor((f-o)/1000);var l=Math.floor(n/31536000);if(l>=1){return l+" year"+(l>1?"s":"")+" ago"}var k=Math.floor(n/2592000);if(k>=1){return k+" month"+(k>1?"s":"")+" ago"}var e=Math.floor(n/604800);if(e>=1){return e+" week"+(e>1?"s":"")+" ago"}var m=Math.floor(n/86400);if(m>=1){return m+" day"+(m>1?"s":"")+" ago"}var j=Math.floor(n/3600);if(j>=1){return j+" hour"+(j>1?"s":"")+" ago"}var i=Math.floor(n/60);if(i>=1){return i+" minute"+(i>1?"s":"")+" ago"}return(g?"just":"Just")+" now"}function c(){$(".timeago").each(function(){if($(this).children("i").length>0){var g=$(this).hasClass("lastmod");var f=$(this).children("i");var e=f.text();$(this).text(d(e,g));$(this).append(f)}});if(a==0&&b!=undefined){clearInterval(b)}return a}var a=$(".timeago").length;if(a==0){return}if(c()>0){a=$(".timeago").length;var b=setInterval(c,60000)}});
--- a/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.css
+++ b/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.css
@ -0,0 +1,4 @@
+/*!
+ * Bootstrap Table of Contents v1.0.1 (http://afeld.github.io/bootstrap-toc/)
+ * Copyright 2015 Aidan Feldman
+ * Licensed under MIT (https://github.com/afeld/bootstrap-toc/blob/gh-pages/LICENSE.md) */nav[data-toggle=toc] .nav>li>a{display:block;padding:4px 20px;font-size:13px;font-weight:500;color:#767676}nav[data-toggle=toc] .nav>li>a:focus,nav[data-toggle=toc] .nav>li>a:hover{padding-left:19px;color:#563d7c;text-decoration:none;background-color:transparent;border-left:1px solid #563d7c}nav[data-toggle=toc] .nav-link.active,nav[data-toggle=toc] .nav-link.active:focus,nav[data-toggle=toc] .nav-link.active:hover{padding-left:18px;font-weight:700;color:#563d7c;background-color:transparent;border-left:2px solid #563d7c}nav[data-toggle=toc] .nav-link+ul{display:none;padding-bottom:10px}nav[data-toggle=toc] .nav .nav>li>a{padding-top:1px;padding-bottom:1px;padding-left:30px;font-size:12px;font-weight:400}nav[data-toggle=toc] .nav .nav>li>a:focus,nav[data-toggle=toc] .nav .nav>li>a:hover{padding-left:29px}nav[data-toggle=toc] .nav .nav>li>.active,nav[data-toggle=toc] .nav .nav>li>.active:focus,nav[data-toggle=toc] .nav .nav>li>.active:hover{padding-left:28px;font-weight:500}nav[data-toggle=toc] .nav-link.active+ul{display:block}
--- a/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.js
+++ b/assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.js
@ -0,0 +1,5 @@
+/*!
+ * Bootstrap Table of Contents v1.0.1 (http://afeld.github.io/bootstrap-toc/)
+ * Copyright 2015 Aidan Feldman
+ * Licensed under MIT (https://github.com/afeld/bootstrap-toc/blob/gh-pages/LICENSE.md) */
+!function(a){"use strict";window.Toc={helpers:{findOrFilter:function(e,t){var n=e.find(t);return e.filter(t).add(n).filter(":not([data-toc-skip])")},generateUniqueIdBase:function(e){return a(e).text().trim().replace(/\'/gi,"").replace(/[& +$,:;=?@"#{}|^~[`%!'<>\]\.\/\(\)\*\\\n\t\b\v]/g,"-").replace(/-{2,}/g,"-").substring(0,64).replace(/^-+|-+$/gm,"").toLowerCase()||e.tagName.toLowerCase()},generateUniqueId:function(e){for(var t=this.generateUniqueIdBase(e),n=0;;n++){var r=t;if(0<n&&(r+="-"+n),!document.getElementById(r))return r}},generateAnchor:function(e){if(e.id)return e.id;var t=this.generateUniqueId(e);return e.id=t},createNavList:function(){return a('<ul class="nav navbar-nav"></ul>')},createChildNavList:function(e){var t=this.createNavList();return e.append(t),t},generateNavEl:function(e,t){var n=a('<a class="nav-link"></a>');n.attr("href","#"+e),n.text(t);var r=a("<li></li>");return r.append(n),r},generateNavItem:function(e){var t=this.generateAnchor(e),n=a(e),r=n.data("toc-text")||n.text();return this.generateNavEl(t,r)},getTopLevel:function(e){for(var t=1;t<=6;t++){if(1<this.findOrFilter(e,"h"+t).length)return t}return 1},getHeadings:function(e,t){var n="h"+t,r="h"+(t+1);return this.findOrFilter(e,n+","+r)},getNavLevel:function(e){return parseInt(e.tagName.charAt(1),10)},populateNav:function(r,a,e){var i,s=r,c=this;e.each(function(e,t){var n=c.generateNavItem(t);c.getNavLevel(t)===a?s=r:i&&s===r&&(s=c.createChildNavList(i)),s.append(n),i=n})},parseOps:function(e){var t;return(t=e.jquery?{$nav:e}:e).$scope=t.$scope||a(document.body),t}},init:function(e){(e=this.helpers.parseOps(e)).$nav.attr("data-toggle","toc");var t=this.helpers.createChildNavList(e.$nav),n=this.helpers.getTopLevel(e.$scope),r=this.helpers.getHeadings(e.$scope,n);this.helpers.populateNav(t,n,r)}},a(function(){a('nav[data-toggle="toc"]').each(function(e,t){var n=a(t);Toc.init(n)})})}(jQuery);
--- a/assets/lib/jquery-3.4.1.min.js
+++ b/assets/lib/jquery-3.4.1.min.js
--- a/assets/lib/jquery.disqusloader.min.js
+++ b/assets/lib/jquery.disqusloader.min.js
@ -0,0 +1,8 @@
+/*!
+  disqusLoader.js v1.0
+  A JavaScript plugin for lazy-loading Disqus comments widget.
+  -
+  By Osvaldas Valutis, www.osvaldas.info
+  Available for use under the MIT License
+*/
+(function(e,g,h,d){var a=e(g),k=function(o,n){var q,p;return function(){var t=this,s=arguments,r=+new Date;q&&r<q+o?(clearTimeout(p),p=setTimeout(function(){q=r,n.apply(t,s)},o)):(q=r,n.apply(t,s))}},m=false,j=false,i=false,c=false,f="unloaded",b=e(),l=function(){if(!b.length||b.data("disqusLoaderStatus")=="loaded"){return true}var n=a.scrollTop();if(b.offset().top-n>a.height()*j||n-b.offset().top-b.outerHeight()-(a.height()*j)>0){return true}e("#disqus_thread").removeAttr("id");b.attr("id","disqus_thread").data("disqusLoaderStatus","loaded");if(f=="loaded"){DISQUS.reset({reload:true,config:i})}else{g.disqus_config=i;if(f=="unloaded"){f="loading";e.ajax({url:c,async:true,cache:true,dataType:"script",success:function(){f="loaded"}})}}};a.on("scroll resize",k(m,l));e.disqusLoader=function(o,n){n=e.extend({},{laziness:1,throttle:250,scriptUrl:false,disqusConfig:false},n);j=n.laziness+1;m=n.throttle;i=n.disqusConfig;c=c===false?n.scriptUrl:c;b=(typeof o=="string"?e(o):o).eq(0);b.data("disqusLoaderStatus","unloaded");l()}})(jQuery,window,document);
--- a/assets/lib/simple-jekyll-search-1.7.1.min.js
+++ b/assets/lib/simple-jekyll-search-1.7.1.min.js
@ -0,0 +1,6 @@
+/*!
+  * Simple-Jekyll-Search v1.7.1 (https://github.com/christian-fei/Simple-Jekyll-Search)
+  * Copyright 2015-2018, Christian Fei
+  * Licensed under the MIT License.
+  */
+!function(){"use strict";var f={load:function(t,e){var n=window.XMLHttpRequest?new window.XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP");n.open("GET",t,!0),n.onreadystatechange=(r=n,i=e,function(){if(4===r.readyState&&200===r.status)try{i(null,JSON.parse(r.responseText))}catch(t){i(t,null)}}),n.send();var r,i}};var n=function(t,e){var n=e.length,r=t.length;if(n<r)return!1;if(r===n)return t===e;t:for(var i=0,o=0;i<r;i++){for(var u=t.charCodeAt(i);o<n;)if(e.charCodeAt(o++)===u)continue t;return!1}return!0},e=new function(){this.matches=function(t,e){return n(e.toLowerCase(),t.toLowerCase())}};var r=new function(){this.matches=function(e,t){return!!e&&(e=e.trim().toLowerCase(),0<(t=t.toLowerCase()).split(" ").filter(function(t){return 0<=e.indexOf(t)}).length)}};var l={put:function(t){if(s(t))return c(t);if(e=t,Boolean(e)&&"[object Array]"===Object.prototype.toString.call(e))return function(t){var e=[];a();for(var n=0,r=t.length;n<r;n++)s(t[n])&&e.push(c(t[n]));return e}(t);var e;return undefined},clear:a,search:function(t){if(!t)return[];return function(t,e,n,r){for(var i=[],o=0;o<t.length&&i.length<r.limit;o++){var u=p(t[o],e,n,r);u&&i.push(u)}return i}(o,t,u.searchStrategy,u).sort(u.sort)},setOptions:function(t){(u=t||{}).fuzzy=t.fuzzy||!1,u.limit=t.limit||10,u.searchStrategy=t.fuzzy?e:r,u.sort=t.sort||i}};function i(){return 0}var o=[],u={};function a(){return o.length=0,o}function s(t){return Boolean(t)&&"[object Object]"===Object.prototype.toString.call(t)}function c(t){return o.push(t),o}function p(t,e,n,r){for(var i in t)if(!d(t[i],r.exclude)&&n.matches(t[i],e))return t}function d(t,e){for(var n=!1,r=0,i=(e=e||[]).length;r<i;r++){var o=e[r];!n&&new RegExp(t).test(o)&&(n=!0)}return n}u.fuzzy=!1,u.limit=10,u.searchStrategy=u.fuzzy?e:r,u.sort=i;var h={compile:function(r){return v.template.replace(v.pattern,function(t,e){var n=v.middleware(e,r[e],v.template);return void 0!==n?n:r[e]||t})},setOptions:function(t){v.pattern=t.pattern||v.pattern,v.template=t.template||v.template,"function"==typeof t.middleware&&(v.middleware=t.middleware)}},v={};v.pattern=/\{(.*?)\}/g,v.template="",v.middleware=function(){};var m={merge:function(t,e){var n={};for(var r in t)n[r]=t[r],"undefined"!=typeof e[r]&&(n[r]=e[r]);return n},isJSON:function(t){try{return!!(t instanceof Object&&JSON.parse(JSON.stringify(t)))}catch(e){return!1}}};!function(e){var r={searchInput:null,resultsContainer:null,json:[],success:Function.prototype,searchResultTemplate:'<li><a href="{url}" title="{desc}">{title}</a></li>',templateMiddleware:Function.prototype,sortMiddleware:function(){return 0},noResultsText:"No results found",limit:10,fuzzy:!1,exclude:[]},i=["searchInput","resultsContainer","json"],o=function t(e){if(n=e,!(n&&"undefined"!=typeof n.required&&n.required instanceof Array))throw new Error("-- OptionsValidator: required options missing");var n;if(!(this instanceof t))return new t(e);var r=e.required;this.getRequiredOptions=function(){return r},this.validate=function(e){var n=[];return r.forEach(function(t){"undefined"==typeof e[t]&&n.push(t)}),n}}({required:i});function u(t){r.success(t),l.put(t),r.searchInput.addEventListener("keyup",function(t){var e;e=t.which,-1===[13,16,20,37,38,39,40,91].indexOf(e)&&(n(),s(t.target.value))})}function n(){r.resultsContainer.innerHTML=""}function a(t){r.resultsContainer.innerHTML+=t}function s(t){var e;(e=t)&&0<e.length&&(n(),function(t){var e=t.length;if(0===e)return a(r.noResultsText);for(var n=0;n<e;n++)a(h.compile(t[n]))}(l.search(t)))}function c(t){throw new Error("SimpleJekyllSearch --- "+t)}e.SimpleJekyllSearch=function(t){var n;return 0<o.validate(t).length&&c("You must specify the following required options: "+i),r=m.merge(r,t),h.setOptions({template:r.searchResultTemplate,middleware:r.templateMiddleware}),l.setOptions({fuzzy:r.fuzzy,limit:r.limit,sort:r.sortMiddleware}),m.isJSON(r.json)?u(r.json):(n=r.json,f.load(n,function(t,e){t&&c("failed to get JSON ("+n+")"),u(e)})),{search:s}}}(window)}();
--- a/build.sh
+++ b/build.sh
@ -0,0 +1,106 @@
+#!/bin/bash
+#
+# Build jekyll site and store site files in ./_site
+# © 2019 Cotes Chung
+# Published under MIT License
+
+
+help() {
+   echo "Usage:"
+   echo
+   echo "   bash build.sh [options]"
+   echo
+   echo "Options:"
+   echo "   -b, --baseurl <URL>      The site relative url that start with slash, e.g. '/project'"
+   echo "   -h, --help               Print the help information"
+   echo "   -d, --destination <DIR>  Destination directory (defaults to ./_site)"
+}
+
+
+init() {
+  set -eu
+
+  if [[ -d .container ]]; then
+    rm -rf .container
+  fi
+
+  if [[ -d _site ]]; then
+    rm -rf _site
+  fi
+
+  if [[ -d ../.chirpy-cache ]]; then
+    rm -rf ../.chirpy-cache
+  fi
+
+  mkdir ../.chirpy-cache
+  cp -r *   ../.chirpy-cache
+  cp -r .git ../.chirpy-cache
+
+  mv ../.chirpy-cache .container
+}
+
+
+check_unset() {
+  if [[ -z ${1:+unset} ]]
+  then
+    help
+    exit 1
+  fi
+}
+
+
+CMD="JEKYLL_ENV=production bundle exec jekyll b"
+DEST=`realpath "./_site"`
+
+while [[ $# -gt 0 ]]
+do
+  opt="$1"
+  case $opt in
+    -b|--baseurl)
+      check_unset $2
+
+      if [[ $2 == \/* ]]
+      then
+        CMD+=" -b $2"
+      else
+        help
+        exit 1
+      fi
+
+      shift
+      shift
+      ;;
+    -d|--destination)
+      check_unset $2
+      if [[ -d $2 ]]; then
+        rm -rf $2
+      fi
+      DEST=$2
+      shift;
+      shift;
+      ;;
+    -h|--help)
+      help
+      exit 0
+      ;;
+    *) # unknown option
+      help
+      exit 1
+      ;;
+  esac
+done
+
+init
+
+cd .container
+
+echo "$ cd $(pwd)"
+python _scripts/py/init_all.py
+
+CMD+=" -d $DEST"
+echo "\$ $CMD"
+eval $CMD
+
+echo "$(date) - Build success, the Site files placed in _site."
+
+cd .. && rm -rf .container
--- a/feed.xml
+++ b/feed.xml
@ -0,0 +1,58 @@
+---
+layout: compress
+# Atom Feed, reference: https://validator.w3.org/feed/docs/atom.html
+# © 2019 Cotes Chung
+# MIT License
+---
+
+{% capture source %}
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <id>{{ site.url }}</id>
+  <title>{{ site.title }}</title>
+  <subtitle>{{ site.description }}</subtitle>
+  <updated>{{ site.time | date_to_xmlschema }}</updated>
+  <author>
+    <name>{{ site.author }}</name>
+    <uri>{{ site.url }}</uri>
+  </author>
+  <link href="/feed.xml" rel="self" type="application/atom+xml" />
+  <link href="{{ site.url }}" rel="alternate" type="text/html" />
+  <generator uri="https://jekyllrb.com/" version="{{ jekyll.version }}">Jekyll</generator>
+  <rights> © {{ 'now' | date: '%Y' }} {{ site.author }} </rights>
+  <icon>{{ site.baseurl }}/assets/img/favicons/favicon.ico</icon>
+  <logo>{{ site.baseurl }}/assets/img/favicons/favicon-96x96.png</logo>
+
+{% for post in site.posts limit: 5 %}
+  {% assign post_absolute_url = site.url | append: post.url %}
+  <entry>
+    <title>{{ post.title }}</title>
+    <link href="{{ post_absolute_url }}" rel="alternate" type="text/html" title="{{ post.title }}" />
+    <published>{{ post.date | date_to_xmlschema }}</published>
+  {% if post.lastmod %}
+    <updated>{{ post.lastmod | date_to_xmlschema }}</updated>
+  {% else %}
+    <updated>{{ site.time | date_to_xmlschema }}</updated>
+  {% endif %}
+    <id>{{ post_absolute_url }}</id>
+    <content src="{{ post_absolute_url }}" />
+    <author>
+      <name>{{ site.author }}</name>
+    </author>
+
+  {% if post.categories %}
+    {% for category in post.categories %}
+    <category term="{{ category }}" />
+    {% endfor %}
+  {% endif %}
+
+  {% if post.summary %}
+    <summary>{{ post.summary | strip }}</summary>
+  {% else %}
+    <summary>{{ post.content | strip_html | truncate: 200 }}</summary>
+  {% endif %}
+
+  </entry>
+{% endfor %}
+</feed>
+{% endcapture %}
+{{ source | replace: '&', '&amp;' }}
--- a/index.html
+++ b/index.html
@ -0,0 +1,11 @@
+---
+layout: home
+title: Home
+breadcrumb:
+  -
+    label: Posts
+
+# Index page
+# © 2017-2019 Cotes Chung
+# MIT License
+---
--- a/init.sh
+++ b/init.sh
@ -0,0 +1,56 @@
+#!/bin/bash
+#
+# Initial the categories/tags pages and for posts.
+# © 2019 Cotes Chung
+# Published under MIT License
+
+
+CATEGORIES=false
+TAGS=false
+LASTMOD=false
+
+set -eu
+
+if [[ ! -z $(git status -s) ]]; then
+  echo "Warning: Commit the changes of the repository first."
+  git status -s
+  exit 1
+fi
+
+python _scripts/py/init_all.py
+
+msg="Updated"
+
+if [[ ! -z $(git status categories -s) ]]; then
+  git add categories/
+  msg+=" Categories' pages"
+  CATEGORIES=true
+fi
+
+
+if [[ ! -z $(git status tags -s) ]]; then
+  git add tags/
+  if [[ $CATEGORIES = true ]]; then
+    msg+=" and"
+  fi
+  msg+=" Tags' pages"
+  TAGS=true
+fi
+
+if [[ ! -z $(git status _posts -s) ]]; then
+  git add _posts/
+  if [[ $CATEGORIES = true || $TAGS = true ]]; then
+    msg+=" and"
+  fi
+  msg+=" Lastmod"
+  LASTMOD=true
+fi
+
+if [[ $CATEGORIES = true || $TAGS = true || $LASTMOD = true ]]; then
+  msg+=" for post(s)."
+  git commit -m "[Automation] $msg"
+else
+  msg="Nothing changed."
+fi
+
+echo $msg
--- a/pv.sh
+++ b/pv.sh
@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Fetch Google Analytics Pageviews reporting cache
+# and save as 'assets/data/pagevies.json'
+#
+# Requirement:
+#   - jq
+#   - wget
+#
+# © 2019 Cotes Chung
+# MIT Licensed
+
+
+URL_FILE=assets/data/proxy.json
+PV_CACHE=assets/data/pageviews.json
+
+set -eu
+
+PROXY_URL=$(jq -r '.proxyUrl' $URL_FILE)
+
+wget $PROXY_URL -O $PV_CACHE
--- a/robots.txt
+++ b/robots.txt
@ -0,0 +1,13 @@
+---
+# The robots rules
+# © 2017-2019 Cotes Chung
+# MIT License
+layout: null
+permalink: robots.txt
+---
+
+User-agent: *
+
+Disallow: /norobots/
+
+Sitemap: {{ site.url | append: site.baseurl }}/sitemap.xml
--- a/run.sh
+++ b/run.sh
@ -0,0 +1,106 @@
+#!/bin/bash
+#
+# Run jekyll site at http://127.0.0.1:4000
+# © 2019 Cotes Chung
+# Published under MIT License
+
+
+help() {
+   echo "Usage:"
+   echo
+   echo "   bash run.sh [options]"
+   echo
+   echo "Options:"
+   echo "     -H, --host    <HOST>    Host to bind to"
+   echo "     -P, --port    <PORT>    Port to listen on"
+   echo "     -b, --baseurl <URL>     The site relative url that start with slash, e.g. '/project'"
+   echo "     -h, --help              Print the help information"
+}
+
+
+cleanup() {
+   cd ../
+   rm -rf .container
+}
+
+
+init() {
+
+  set -eu
+
+  if [[ -d .container ]]; then
+    rm -rf .container
+  fi
+
+  if [[ -d ../.chirpy-cache ]]; then
+    rm -rf ../.chirpy-cache
+  fi
+
+  mkdir ../.chirpy-cache
+  cp -r * ../.chirpy-cache
+  cp -r .git  ../.chirpy-cache
+
+  mv ../.chirpy-cache .container
+
+  trap cleanup INT
+}
+
+
+check_unset() {
+  if [[ -z ${1:+unset} ]]
+  then
+    help
+    exit 1
+  fi
+}
+
+
+cmd="bundle exec jekyll s"
+
+while (( $# ))
+do
+  opt="$1"
+  case $opt in
+    -H|--host)
+      check_unset $2
+      cmd+=" -H $2"
+      shift # past argument
+      shift # past value
+      ;;
+    -P|--port)
+      check_unset $2
+      cmd+=" -P $2"
+      shift
+      shift
+      ;;
+    -b|--baseurl)
+      check_unset $2
+      if [[ $2 == \/* ]]
+      then
+        cmd+=" -b $2"
+      else
+        help
+        exit 1
+      fi
+      shift
+      shift
+      ;;
+    -h|--help)
+      help
+      exit 0
+      ;;
+    *)
+      # unknown option
+      help
+      exit 1
+      ;;
+  esac
+done
+
+init
+
+cd .container
+python _scripts/py/init_all.py
+
+echo "\$ $cmd"
+eval $cmd
--- a/search.json
+++ b/search.json
@ -0,0 +1,14 @@
+---
+layout: compress
+---
+[
+  {% for post in site.posts %}
+  {
+    "title": "{{ post.title | escape }}",
+    "url": "{{ site.baseurl }}{{ post.url }}",
+    "categories": "{{ post.categories | join: ', '}}",
+    "tags": "{{ post.tags | join: ', ' }}",
+    "date": "{{ post.date }}"
+  }{% unless forloop.last %},{% endunless %}
+  {% endfor %}
+]
--- a/sitemap.xml
+++ b/sitemap.xml
@ -0,0 +1,77 @@
+---
+layout: compress
+# The Sitemap template
+# © 2017-2019 Cotes Chung
+# MIT License
+---
+
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+{% for post in site.posts %}
+  {% unless post.published == false %}
+
+    {% capture lastmod %}
+      {% if post.lastmod %}
+        {{ post.lastmod }}
+      {% elsif post.date %}
+          {{ post.date }}
+        {% else %}
+          {{ site.time }}
+        {% endif %}
+      {% endcapture %}
+
+  <url>
+    <loc>{{ site.url | append: site.baseurl | append: post.url }}</loc>
+    <lastmod>{{ lastmod | date_to_xmlschema }}</lastmod>
+
+    {% if post.sitemap.changefreq %}
+      <changefreq>{{ post.sitemap.changefreq }}</changefreq>
+    {% else %}
+      <changefreq>monthly</changefreq>
+    {% endif %}
+
+    {% if post.sitemap.priority %}
+      <priority>{{ post.sitemap.priority }}</priority>
+    {% else %}
+      <priority>0.5</priority>
+    {% endif %}
+  </url>
+  {% endunless %}
+{% endfor %}
+
+{% for page in site.pages %}
+
+  {% if site.sitemap_exclude contains page.url %}
+    {% continue %}
+  {% endif %}
+
+  {% capture lastmod %}
+    {% if page.lastmod %}
+      {{ page.lastmod }}
+    {% elsif page.date %}
+      {{ page.date }}
+    {% else %}
+      {{ site.time }}
+    {% endif %}
+  {% endcapture %}
+
+   <url>
+    <loc>{{ site.url | append: site.baseurl | append: page.url | remove: "index.html" }}</loc>
+    <lastmod>{{ lastmod | date_to_xmlschema }}</lastmod>
+
+    {% if page.sitemap.changefreq %}
+      <changefreq>{{ page.sitemap.changefreq }}</changefreq>
+    {% else %}
+      <changefreq>monthly</changefreq>
+    {% endif %}
+
+    {% if page.sitemap.priority %}
+      <priority>{{ page.sitemap.priority }}</priority>
+    {% else %}
+      <priority>0.3</priority>
+    {% endif %}
+  </url>
+
+{% endfor %}
+
+</urlset>
--- a/tabs/about.md
+++ b/tabs/about.md
@ -0,0 +1,35 @@
+---
+title: About
+
+# The About page
+# © 2017-2019 Cotes Chung
+# MIT License
+---
+
+**Chirpy** is an responsive web design Jekyll theme developed using Bootstrap 4.
+
+
+## Features
+
+* Last modified date
+* Table of Contents
+* Disqus Comments
+* Syntax highlighting
+* Two-level Categories
+* Search
+* HTML compress
+* Atom feeds
+* Google Analytics
+* Pageviews (Advanced)
+
+## Homepage
+
+You can fork this project from the [Homepage](https://github.com/cotes2020/jekyll-theme-chirpy/). Any issues and suggestions are welcome!
+
+## Usage
+
+Follow the [tutorial posts]({{ site.baseurl }}/categories/tutorial/), it will help you build a site quickly.
+
+## License
+
+This project is published under the [MIT License](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE).
--- a/Show More
+++ b/Show More
				`@ -0,0 +1 @@`
				`{"proxyUrl":"https://your-gae.appspot.com/query?id=the_secrt_id"}`
				`@ -0,0 +1 @@`
				`$(window).scroll(function(){if($(this).scrollTop()>50&&$("#sidebar-trigger").css("display")=="none"){$("#back-to-top").fadeIn()}else{$("#back-to-top").fadeOut()}});$(function(){$("#back-to-top").click(function(){$("body,html").animate({scrollTop:0},800);return false})});`
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