chapter.html

---
layout: default
---

{% include build-chapter-nav.html %}

{% if page_chapter_is_draft %}
  <div class="markdown-section color-callout-light with-border" style="padding: 5px; padding-left: 10px; font-size: 16px; margin-bottom: 20px;">
    This chapter is a
    <b>draft</b>.
    <a href="{{site.baseurl}}/outline.html">See the outline.</a>
  </div>
{% endif %}

  <nav aria-label="Breadcrumb" class="breadcrumb markdown-section">
    <ul>
      {% if site.bookcrumbs.book_url %}
        {% capture book_url %}{{site.baseurl}}{{site.bookcrumbs.book_url}}{% endcapture %}
          <li>
            {% unless book_url == page.url %}  
              <a href="{{ book_url }}">
            {% endunless %}
              {% if site.bookcrumbs.book_icon %}<img class="book-icon" src="{{site.baseurl}}/{{ site.bookcrumbs.book_icon }}">{% endif %}
              Book
            {% unless book_url == page.url %}
              </a>
            {% endunless %}
          </li>
      {% endif %}

      {% if site.bookcrumbs.contents_url %}
        {% capture contents_url %}{{site.baseurl}}{{site.bookcrumbs.contents_url}}{% endcapture %}
        <li {% if contents_url == page.url %}class="no-arrow"{% endif %}>
          {% if contents_url != page.url %}
            <a href="{{ contents_url }}">
          {% endif %}
            Contents
          {% if contents_url != page.url %}
            </a>
          {% endif %}
        </li>
      {% endif %}

      {% if page_chapter_is_part_index and page_part_num%}
        <li class="breadcrumb-part no-arrow">
          Part {{ page_part_num }}:
        </li>
      {% endif %}

      {% if page_chapter and page_chapter_is_part_index != true %}
        {% unless page_part_unnumbered and page_chapter_num == nil %}

          {% if page_part_folder %}
            {% unless page_part_unnumbered %}
              <li class="breadcrumb-part">
                {% if page_part_index_chapter %}
                  <a href="{{ site.baseurl }}{{ page_part_index_chapter.url }}">
                {% endif %}
                Part {{ page_part_num }}: {{ page_part_label }}
                {% if page_part_index_chapter %}
                  </a>
                {% endif %}
              </li>
            {% endunless %}
          {% endif %}

          {% if page_chapter_num %}
            <li class="no-arrow">
              Chapter {{ page_chapter_num }}.
            </li>
          {% endif %}

        {% endunless %}
      {% endif %}
    </ul>
  </nav>


<section class="normal markdown-section">

  {% if page_chapter_is_part_index %}
    {% if page_part_num or page_part_label %}
      <h1 class="heading-chapter-title heading-part">
        {% if page_part_num %}
          <div class="printable-only">PART {{ page_part_num }}:</div>
        {% endif %}
        {{ page_part_label | escape }}
      </h1>
    {% endif %}
  {% else %}
    {% if page.title %}
    <h1
      id="{{ page.slug }}"
      data-level="1.1"
      class="heading-chapter-title no_toc">
      {% if page_chapter_num %}
      <div class="printable-only">Chapter {{ page_chapter_num }}:</div>
      {% endif %}
      {{ page.title | escape }}
    </h1>
    {% endif %}
  {% endif %}

  {% if page.abstract %}
    <div class="chapter-abstract color-callout-dark">
      {{ page.abstract }}
    </div>
  {% endif %}

  {% if site.in_chapter_toc.enabled and page.disable_toc != true and page_chapter_is_part_index != true %}
    {% capture in_chapter_toc %}
      {% include toc.html html=content h_min=site.sidebar_toc.h_min h_max=site.sidebar_toc.h_max %}{% endcapture %}
    {% capture in_chapter_toc %}{{ in_chapter_toc | strip }}{% endcapture %}

    {% if in_chapter_toc and in_chapter_toc != "" %}
      <div class="page-toc">
        <div class="page-toc-heading">
          In this chapter:
          {{ in_chapter_toc }}
        </div>
      </div>
    {% endif %}
  {% endif %}

  {{ content }}

  {% comment %}{% include chapter-iterate-vars.html inspect="page" %}{% endcomment %}
</section>

{% if page_prev_chapter or page_next_chapter %}
  <div class="chapter-pager">

    {% if page_next_chapter %}
      {% if page_next_chapter_is_part_index %}
        {% assign next_title = page_next_part_label %}
      {% else %}
        {% assign next_title = page_next_chapter.title %}
      {% endif %}
      <a
        href="{{site.baseurl}}{{ page_next_chapter.url }}"
        class="chapter-next {% unless page_prev_chapter %}pager-unique{% endunless %}"
        aria-label="Next page: {{ next_title | escape }}"
        data-level="1.1"
        data-path="{{site.baseurl}}{{ page_next_chapter.url }}">
        <div class="pager-arrow">
          <i class="fa fa-arrow-right"></i>
        </div>
        <div class="pager-labels">
          <div class="part">
            Next:
            {% if page_next_chapter_is_part_index %}
              Part {{ page_next_part_num }}.
            {% else %}
              {% if page_next_part_label %}
                {{ page_next_part_label }}
                {% if page_next_chapter_num %} &#8250;{% endif %}
              {% endif %}
              {% if page_next_chapter_num %}Chapter {{ page_next_chapter_num }}.{% endif %}
            {% endif %}
          </div>
          <div class="chapter-label">
            {{ next_title | escape }}
          </div>
        </div>
      </a>
    {% endif %}

    {% if page_prev_chapter %}
      {% if page_prev_chapter_is_part_index %}
        {% assign prev_title = page_prev_part_label %}
      {% else %}
        {% assign prev_title = page_prev_chapter.title %}
      {% endif %}
      <a
        href="{{site.baseurl}}{{ page_prev_chapter.url }}"
        class="chapter-prev {% unless page_next_chapter %}pager-unique{% endunless %}"
        aria-label="Previous page: {{ prev_title | escape }}"
        data-level="1.1"
        data-path="{{site.baseurl}}{{ page_prev_chapter.url }}">
        <div class="pager-arrow">
          <i class="fa fa-arrow-left"></i>
        </div>
        <div class="pager-labels">
          <div class="part">
            Previous:
            {% if page_prev_chapter_is_part_index %}
              Part {{ page_prev_part_num }}.
            {% else %}
              {% if page_prev_part_label %}
                {{ page_prev_part_label }}
                {% if page_prev_chapter_num %}&#8250;{% endif %}
              {% endif %}
              {% if page_prev_chapter_num %}Chapter {{ page_prev_chapter_num }}.{% endif %}
            {% endif %}
          </div>
          <div class="chapter-label">
            {{ prev_title | escape }}
          </div>
        </div>
      </a>
    {% endif %}

    <div style="clear: both;"></div>
  </div>
  <!-- .chapter-pager -->
{% endif %}