Ticket #12061: 12061.2.diff

src/wp-includes/formatting.php

@@ -476 +476 @@
                 return $pee;
         }
 
-        $tagregexp = join( '|', array_map( 'preg_quote', array_keys( $shortcode_tags ) ) );
+        /**
+         * Filter the list of shortcodes to run through the 'unautop' routine.
+         *
+         * @since 4.1.0
+         *
+         * @param array $shortcode_tags Shortcode tags to run through the 'unautop' routine.
+         */
+        $shortcode_tags = apply_filters( 'unautop_shortcodes', $shortcode_tags );
+
+        $tagregexp = join( '|', array_map( 'preg_quote', $shortcode_tags ) );
         $spaces = wp_spaces_regexp();
 
         $pattern =