Weston Ruter

<p><em>This plugin is developed at<br />
<a href="http://www.shepherd-interactive.com/" title="Shepherd Interactive specializes in web design and development in Portland, Oregon" rel="nofollow ugc">Shepherd Interactive</a><br />
for the benefit of the community. No support is available. Please post any questions to the <a href="https://wordpress.org/tags/sectionize?forum_id=10" rel="ugc">support forum</a>.</em></p>
<p>Takes HTML content which contains flat heading elements inline with paragraphs<br />
and automatically nests them withing HTML5 <code><section></code> elements. It also<br />
conditionally prepends an <code><ol></code> Table of Contents (TOC) with links to the<br />
sections in the content, for example:</p>
<pre><code><nav class='toc'><ol>
    <li><a href="#section-first-top">First Top</a></li>
    <li><a href="#section-second-top">Second Top</a>
    <ol>
        <li><a href="#section-first-sub">First Sub</a></li>
        <li><a href="#section-second-sub">Second Sub</a></li>
    </ol>
    </li>
    <li><a href="#section-third-top">Third Top</a></li>
</ol></nav>
</code></pre>
<p>This would reflect original post content such as:</p>
<pre><code><h2>First Top</h2>
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
<h2>Second Top</h2>
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
<h3>First Sub</h2>
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
<h3>Second Sub</h2>
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
<h2>Third Top</h2>
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</code></pre>
<p>Original post content such as this would be sectionized as follows:</p>
<pre><code><section id="section-first-top">
    <h2>First Top</h2>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</section>
<section id="section-second-top">
    <h2>Second Top</h2>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit.
    <section id="section-first-sub">
        <h3>First Sub</h2>
        Lorem ipsum dolor sit amet, consectetur adipiscing elit.
    </section>
    <section id="section-second-sub">
        <h3>Second Sub</h2>
        Lorem ipsum dolor sit amet, consectetur adipiscing elit.
    </section>
</section>
<section id="section-third-top">
    <h2>Third Top</h2>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</section>
</code></pre>
<p>Adding a table of contents as such not only aids navigation for visitors once<br />
on the page, but Google also now provides direct links to such sections in relevant search result<br />
snippets (see <a href="http://googleblog.blogspot.com/2009/09/jump-to-information-you-want-right-from.html" title="Jump to the information you want right from the search snippets" rel="nofollow ugc">announcement</a>).<br />
So people browsing search results may be able to see your section links<br />
right from the results page and then be able to jump directly to the relevant<br />
section.</p>
<p>The start/end tags for both the sections and the TOC, as well as the prefixes<br />
used when generating the section IDs, may all be configured via the following<br />
WordPress options (with their defaults):</p>
<ul>
<li><code>sectionize_id_prefix</code>: <code>'section-'</code></li>
<li><code>sectionize_start_section</code>: <code>'<section id="%id">'</code></li>
<li><code>sectionize_end_section</code>:  <code></section></code></li>
<li><code>sectionize_include_toc_threshold</code>: <code>2</code></li>
<li><code>sectionize_before_toc</code>: <code>'<nav class="toc">'</code></li>
<li><code>sectionize_after_toc</code>: <code>'</nav>'</code></li>
<li><code>sectionize_disabled</code>: <code>false</code> (no corresponding function argument)</li>
</ul>
<p>These global WordPress options may be overridden by individual posts/pages by<br />
creating custom fields (postmeta) with the same names.</p>
<p>These options are retreived if their corresponding arguments are not supplied<br />
to the <code>sectionize()</code> function (that is, if they are <code>null</code>):</p>
<pre><code>function sectionize($original_content,
                    $id_prefix = null,
                    $start_section = null,
                    $end_section = null,
                    $include_toc_threshold = null,
                    $before_toc = null,
                    $after_toc = null)
</code></pre>
<p>This <code>sectionize()</code> function is added as a filter for <code>the_content</code> (this is<br />
disabled if the option or postmeta <code>sectionize_disabled</code> evaluates to <code>true</code>):</p>
<pre><code>add_filter('the_content', 'sectionize');
</code></pre>
<p>Noted above, the TOC is conditionally included. It is not included if:</p>
<ol>
<li>there are no headings in the content (thus there is nothing to sectionize),</li>
<li>the headings are not nested properly (see below), or</li>
<li>the heading count does not meet the threshold (or the threshold is -1)</li>
</ol>
<p>If the number of headings in the content is less than the<br />
    include_toc_threshold option/argument then the TOC is not displayed;<br />
likewise, if <code>include_toc_threshold</code> is <code>-1</code> then the TOC is not displayed.</p>
<p><em>Important!</em> Regarding headings being “nested properly”, you must ensure that<br />
you properly arrange your headings in a hierarchical manner in which no heading<br />
is immediately preceeded by another heading that is more than one level greater<br />
(e.g. an <code>h3</code> must be preceeded by an <code>h2</code> or another <code>h3</code>). For example, this<br />
works:</p>
<pre><code>h2
    h3
    h3
        h4
    h3
h2
</code></pre>
<p>But this does not:</p>
<pre><code>h2
    h4 -- fail
        h6 -- fail
h2
</code></pre>
<p>If you make such a mistake, this plugin will abort and have no effect. An error<br />
notice will be included in the HTML output in the form of an HTML comment.</p>
<p>Please see source code for additional documentation: numerous filters are provided<br />
to further customize the behavior. <em>Be one with the code!</em><br />
To help serve HTML5 content, see the <a href="https://wordpress.org/extend/plugins/xhtml5-support/" rel="ugc">XHTML5 Support</a<> plugin.</a></p>


Sectionize

Parses HTML for sections demarcated by heading elements, wraps them in HTML5 section elements, and generates table of contents with links to each.

Archetyped

<p>Cornerstone makes WordPress practical for <strong>any type of site</strong> by enhancing its content management capabilities.  Too long have we had to resort to hacks like using categories in menus to build a pseudo site structure (you know what I’m talking about).</p>
<p>Cornerstone enhances your WordPress site in several ways.  One of the most useful features is one that allows WordPress to be used for sites that go beyond just blogging– <strong>Posts in Sections</strong>.  Create a section, add posts to it, they show up when visitors navigate to that section.  Simple as that.  It really is, but because you’re awesome <a href="http://archetyped.com/know/how-to-organize-posts-in-sections-in-wordpress-with-cornerstone/" rel="nofollow ugc">here’s a tutorial on how to do it</a>.</p>
<h3>Thanks for the Support!</h3>
<p>The support from the users that love Cornerstone is huge.  You can support Cornerstone’s future development and help to make it even better by donating or even just by sending me a nice message 🙂</p>
<p><a href="https://gum.co/cnr-donate" rel="nofollow ugc">Donate to Cornerstone</a></p>
<h3>Features</h3>
<ul>
<li>”NEW: Content Types” – Add custom fields to default (posts, pages, etc.) and custom (events, properties, etc.) post types</li>
<li>Posts in Sections (see above for more info.  Why are you reading from the bottom up?)</li>
<li>Structured permalinks – post permalinks are based on the section they are in (e.g. <code>/section-name/post-name/</code>)</li>
<li>RSS for Sections – Let users subscribe to and receive updates for specific sections on the site.</li>
</ul>
<h3>Next Up</h3>
<ul>
<li>Template functionality – enhanced page titles, featured content, etc.</li>
<li>And more, which is where your feedback comes in.</li>
</ul>
<p><a href="http://archetyped.com/tools/cornerstone/" rel="nofollow ugc">Plugin home page</a></p>


Cornerstone

I found the idea of this plugin quite useful so I was tempted to give a five star rating. But the permalink function is not fully configurable and does not work without trailing slashes which in some cases might be wanted. 
Since I found that a central part of the task the plugin should be used for is not functional I only gave it a 3 stars rating.



Does its job but breaks permalinks

Enhanced content management for WordPress

Sectionize vs Cornerstone