Ticket #47984: pre_do_shortcodes.diff

src/wp-includes/shortcodes.php

@@ -177 +177 @@
 function do_shortcode( $content, $ignore_html = false ) {
         global $shortcode_tags;
 
+        /**
+         * Filters whether to continue with do_shortcode.
+         *
+         * Passing a truthy value to the filter will effectively short-circuit the
+         * shortcode search & replace process, returning that value instead.
+         *
+         * @since
+         *
+         * @param bool|string $return Short-circuit return value. Either false or the value to replace the content with.
+         * @param string $content Content to search for shortcodes.
+         * @param bool $ignore_html When true, shortcodes inside HTML elements will be skipped.
+         */
+        $return = apply_filters( 'pre_do_shortcode', false, $content, $ignore_html );
+        if ( false !== $return ) {
+                return $return;
+        }
+
         if ( false === strpos( $content, '[' ) ) {
                 return $content;
         }