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<title>[56558] trunk/src/wp-includes/html-api: HTML API: Store current token reference in HTML Processor state.</title>
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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/56558">56558</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/56558","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>Bernhard Reiter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-09-12 15:10:19 +0000 (Tue, 12 Sep 2023)</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: Store current token reference in HTML Processor state.

The `$current_token` reference has been stored in the HTML Processor itself, but I suggested to move it into the externalized state so that it can be stored and replaced.

In this patch the reference is moved to that state variable and it should become more possible to save and load state, to resume execution after pausing.

Props dmsnell.
Fixes <a href="https://core.trac.wordpress.org/ticket/59268">#59268</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludeshtmlapiclasswphtmlprocessorstatephp">trunk/src/wp-includes/html-api/class-wp-html-processor-state.php</a></li>
<li><a href="#trunksrcwpincludeshtmlapiclasswphtmlprocessorphp">trunk/src/wp-includes/html-api/class-wp-html-processor.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludeshtmlapiclasswphtmlprocessorstatephp"></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-state.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-state.php  2023-09-12 13:00:32 UTC (rev 56557)
+++ trunk/src/wp-includes/html-api/class-wp-html-processor-state.php    2023-09-12 15:10:19 UTC (rev 56558)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -86,6 +86,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">        public $active_formatting_elements = null;
</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">+         * Refers to the currently-matched tag, if any.
+        *
+        * @since 6.4.0
+        *
+        * @var WP_HTML_Token|null
+        */
+       public $current_token = null;
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Tree construction insertion mode.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @since 6.4.0
</span></span></pre></div>
<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        2023-09-12 13:00:32 UTC (rev 56557)
+++ trunk/src/wp-includes/html-api/class-wp-html-processor.php  2023-09-12 15:10:19 UTC (rev 56558)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -165,15 +165,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">        private $bookmark_counter = 0;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-         * Refers to the currently-matched tag, if any.
-        *
-        * @since 6.4.0
-        *
-        * @var WP_HTML_Token|null
-        */
-       private $current_token = null;
-
-       /**
</del><span class="cx" style="display: block; padding: 0 10px">          * Stores an explanation for why something failed, if it did.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * @see self::get_last_error
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -451,7 +442,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        return false;
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $this->current_token = new WP_HTML_Token(
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $this->state->current_token = new WP_HTML_Token(
</ins><span class="cx" style="display: block; padding: 0 10px">                         $this->bookmark_tag(),
</span><span class="cx" style="display: block; padding: 0 10px">                        $this->get_tag(),
</span><span class="cx" style="display: block; padding: 0 10px">                        $this->is_tag_closer(),
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -538,7 +529,7 @@
</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">                                $this->reconstruct_active_formatting_elements();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 $this->state->frameset_ok = false;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                return true;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -558,7 +549,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                        $this->close_a_p_element();
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return true;
</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">@@ -590,7 +581,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><span class="cx" style="display: block; padding: 0 10px">                        case '-P':
</span><span class="cx" style="display: block; padding: 0 10px">                                if ( ! $this->state->stack_of_open_elements->has_p_in_button_scope() ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        $this->insert_html_element( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 $this->insert_html_element( $this->state->current_token );
</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">                                $this->close_a_p_element();
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -612,8 +603,8 @@
</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">                                $this->reconstruct_active_formatting_elements();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
-                               $this->state->active_formatting_elements->push( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
+                               $this->state->active_formatting_elements->push( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return true;
</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">@@ -633,8 +624,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        case '+TT':
</span><span class="cx" style="display: block; padding: 0 10px">                        case '+U':
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->reconstruct_active_formatting_elements();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
-                               $this->state->active_formatting_elements->push( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
+                               $this->state->active_formatting_elements->push( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return true;
</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">@@ -662,7 +653,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><span class="cx" style="display: block; padding: 0 10px">                        case '+IMG':
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->reconstruct_active_formatting_elements();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return true;
</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">@@ -670,7 +661,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><span class="cx" style="display: block; padding: 0 10px">                        case '+SPAN':
</span><span class="cx" style="display: block; padding: 0 10px">                                $this->reconstruct_active_formatting_elements();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $this->insert_html_element( $this->current_token );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $this->insert_html_element( $this->state->current_token );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return true;
</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">@@ -796,7 +787,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">         */
</span><span class="cx" style="display: block; padding: 0 10px">        public function seek( $bookmark_name ) {
</span><span class="cx" style="display: block; padding: 0 10px">                $actual_bookmark_name = "_{$bookmark_name}";
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $processor_started_at = $this->current_token ? $this->bookmarks[ $this->current_token->bookmark_name ]->start : 0;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $processor_started_at = $this->state->current_token
+                       ? $this->bookmarks[ $this->state->current_token->bookmark_name ]->start
+                       : 0;
</ins><span class="cx" style="display: block; padding: 0 10px">                 $bookmark_starts_at   = $this->bookmarks[ $actual_bookmark_name ]->start;
</span><span class="cx" style="display: block; padding: 0 10px">                $direction            = $bookmark_starts_at > $processor_started_at ? 'forward' : 'backward';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -804,7 +797,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        case 'forward':
</span><span class="cx" style="display: block; padding: 0 10px">                                // When moving forwards, re-parse the document until reaching the same location as the original bookmark.
</span><span class="cx" style="display: block; padding: 0 10px">                                while ( $this->step() ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( $bookmark_starts_at === $this->bookmarks[ $this->current_token->bookmark_name ]->start ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 if ( $bookmark_starts_at === $this->bookmarks[ $this->state->current_token->bookmark_name ]->start ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 return true;
</span><span class="cx" style="display: block; padding: 0 10px">                                        }
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span></span></pre>
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