Changeset 59014 for trunk/src/wp-includes/html-api/class-wp-html-processor.php

Timestamp:

09/11/2024 04:11:32 PM (9 months ago)

Author:

dmsnell

Message:

HTML API: Make WP_HTML_Processor::get_tag() namespace aware.

The HTML specification indicates that an HTML tag with the name "IMAGE"
should be renamed as "IMG" and handled as if it were an "IMG", but this
only applies to elements in the HTML namespace.

In this patch the HTML Processor is updated to ensure that it doesn't
remap the tag name when processing foreign content, such as SVG and
MathML markup.

Developed in ​https://github.com/wordpress/wordpress-develop/7330
Discussed in https://core.trac.wordpress.org/ticket/61656

Props dmsnell, jonsurrell.
See #61576.

File:

• trunk/src/wp-includes/html-api/class-wp-html-processor.php (modified) (1 diff)

trunk/src/wp-includes/html-api/class-wp-html-processor.php

@@ -4728 +4728 @@
         $tag_name = parent::get_tag();
 
-        switch ( $tag_name ) {
-            case 'IMAGE':
-                /*
-                 * > A start tag whose tag name is "image"
-                 * > Change the token's tag name to "img" and reprocess it. (Don't ask.)
-                 */
-                return 'IMG';
-
-            default:
-                return $tag_name;
-        }
+        /*
+         * > A start tag whose tag name is "image"
+         * > Change the token's tag name to "img" and reprocess it. (Don't ask.)
+         */
+        return ( 'IMAGE' === $tag_name && 'html' === $this->get_namespace() )
+            ? 'IMG'
+            : $tag_name;
     }