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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/57314">57314</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/57314","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>dmsnell</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2024-01-19 19:01:29 +0000 (Fri, 19 Jan 2024)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>HTML API: Add support for HR element.

Adds support for the following HTML elements to the HTML Processor:

 - HR

Previously, this element was not supported and the HTML Processor would bail when encountering
it. Now, with this patch, it will proceed to parse an HTML document when encountering one.

Developed in WordPress/wordpress-develop<a href="https://core.trac.wordpress.org/ticket/5897">#5897</a>

Props jonsurrell, dmsnell
Fixes <a href="https://core.trac.wordpress.org/ticket/60283">#60283</a></pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludeshtmlapiclasswphtmlprocessorphp">trunk/src/wp-includes/html-api/class-wp-html-processor.php</a></li>
<li><a href="#trunktestsphpunittestshtmlapiwpHtmlProcessorphp">trunk/tests/phpunit/tests/html-api/wpHtmlProcessor.php</a></li>
<li><a href="#trunktestsphpunittestshtmlapiwpHtmlProcessorBreadcrumbsphp">trunk/tests/phpunit/tests/html-api/wpHtmlProcessorBreadcrumbs.php</a></li>
<li><a href="#trunktestsphpunittestshtmlapiwpHtmlProcessorSemanticRulesphp">trunk/tests/phpunit/tests/html-api/wpHtmlProcessorSemanticRules.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludeshtmlapiclasswphtmlprocessorphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/html-api/class-wp-html-processor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/html-api/class-wp-html-processor.php        2024-01-19 18:24:36 UTC (rev 57313)
+++ trunk/src/wp-includes/html-api/class-wp-html-processor.php  2024-01-19 19:01:29 UTC (rev 57314)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -109,7 +109,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">  *  - Media elements: AUDIO, CANVAS, FIGCAPTION, FIGURE, IMG, MAP, PICTURE, VIDEO.
</span><span class="cx" style="display: block; padding: 0 10px">  *  - Paragraph: P.
</span><span class="cx" style="display: block; padding: 0 10px">  *  - Phrasing elements: ABBR, BDI, BDO, CITE, DATA, DEL, DFN, INS, MARK, OUTPUT, Q, SAMP, SUB, SUP, TIME, VAR.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- *  - Sectioning elements: ARTICLE, ASIDE, NAV, SECTION.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ *  - Sectioning elements: ARTICLE, ASIDE, HR, NAV, SECTION.
</ins><span class="cx" style="display: block; padding: 0 10px">  *  - Templating elements: SLOT.
</span><span class="cx" style="display: block; padding: 0 10px">  *  - Text decoration: RUBY.
</span><span class="cx" style="display: block; padding: 0 10px">  *  - Deprecated elements: ACRONYM, BLINK, CENTER, DIR, ISINDEX, MULTICOL, NEXTID, SPACER.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -941,6 +941,17 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->reconstruct_active_formatting_elements();
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->insert_html_element( $this->state->current_token );
</span><span class="cx" style="display: block; padding: 0 10px">                                return true;
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+                       /*
+                        * > A start tag whose tag name is "hr"
+                        */
+                       case '+HR':
+                               if ( $this->state->stack_of_open_elements->has_p_in_button_scope() ) {
+                                       $this->close_a_p_element();
+                               }
+                               $this->insert_html_element( $this->state->current_token );
+                               $this->state->frameset_ok = false;
+                               return true;
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /*
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -977,7 +988,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'FRAME':
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'FRAMESET':
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'HEAD':
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        case 'HR':
</del><span class="cx" style="display: block; padding: 0 10px">                         case 'HTML':
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'IFRAME':
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'INPUT':
</span></span></pre></div>
<a id="trunktestsphpunittestshtmlapiwpHtmlProcessorphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/html-api/wpHtmlProcessor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/html-api/wpHtmlProcessor.php    2024-01-19 18:24:36 UTC (rev 57313)
+++ trunk/tests/phpunit/tests/html-api/wpHtmlProcessor.php      2024-01-19 19:01:29 UTC (rev 57314)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -173,7 +173,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        'FRAME'     => array( 'FRAME' ),
</span><span class="cx" style="display: block; padding: 0 10px">                        'FRAMESET'  => array( 'FRAMESET' ),
</span><span class="cx" style="display: block; padding: 0 10px">                        'HEAD'      => array( 'HEAD' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        'HR'        => array( 'HR' ),
</del><span class="cx" style="display: block; padding: 0 10px">                         'HTML'      => array( 'HTML' ),
</span><span class="cx" style="display: block; padding: 0 10px">                        'IFRAME'    => array( 'IFRAME' ),
</span><span class="cx" style="display: block; padding: 0 10px">                        'INPUT'     => array( 'INPUT' ),
</span></span></pre></div>
<a id="trunktestsphpunittestshtmlapiwpHtmlProcessorBreadcrumbsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/html-api/wpHtmlProcessorBreadcrumbs.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/html-api/wpHtmlProcessorBreadcrumbs.php 2024-01-19 18:24:36 UTC (rev 57313)
+++ trunk/tests/phpunit/tests/html-api/wpHtmlProcessorBreadcrumbs.php   2024-01-19 19:01:29 UTC (rev 57314)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -175,7 +175,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        'FRAME',
</span><span class="cx" style="display: block; padding: 0 10px">                        'FRAMESET',
</span><span class="cx" style="display: block; padding: 0 10px">                        'HEAD',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        'HR',
</del><span class="cx" style="display: block; padding: 0 10px">                         'HTML',
</span><span class="cx" style="display: block; padding: 0 10px">                        'IFRAME',
</span><span class="cx" style="display: block; padding: 0 10px">                        'INPUT',
</span></span></pre></div>
<a id="trunktestsphpunittestshtmlapiwpHtmlProcessorSemanticRulesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/html-api/wpHtmlProcessorSemanticRules.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/html-api/wpHtmlProcessorSemanticRules.php       2024-01-19 18:24:36 UTC (rev 57313)
+++ trunk/tests/phpunit/tests/html-api/wpHtmlProcessorSemanticRules.php 2024-01-19 19:01:29 UTC (rev 57314)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -225,6 +225,22 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * Verifies that HR closes an open p tag
+        *
+        * @ticket 60283
+        */
+       public function test_in_body_hr_element_closes_open_p_tag() {
+               $processor = WP_HTML_Processor::create_fragment( '<p><hr>' );
+
+               $processor->next_tag( 'HR' );
+               $this->assertSame(
+                       array( 'HTML', 'BODY', 'HR' ),
+                       $processor->get_breadcrumbs(),
+                       'Expected HR to be a direct child of the BODY, having closed the open P element.'
+               );
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Verifies that H1 through H6 elements close an open P element.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @ticket 60215
</span></span></pre>
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