Ticket #43429: 43429.2.diff

src/wp-includes/comment-template.php

@@ -949 +949 @@
  *
  * @since 1.5.0
  * @since 4.4.0 Added the ability for `$comment_ID` to also accept a WP_Comment object.
+ * @since 5.4.0 Added 'In reply to %s.' prefix to child comments in comments feed.
  *
  * @see Walker_Comment::comment()
  *
@@ -960 +961 @@
 function get_comment_text( $comment_ID = 0, $args = array() ) {
         $comment = get_comment( $comment_ID );
 
+        $comment_content = $comment->comment_content;
+
+        if ( is_comment_feed() && $comment->comment_parent ) {
+                $parent = get_comment( $comment->comment_parent );
+                if ( $parent ) {
+                        $parent_link = esc_url( get_comment_link( $parent ) );
+                        $name        = get_comment_author( $parent );
+
+                        $comment_content = sprintf(
+                                /* translators: %s: comment link */
+                                ent2ncr( __( 'In reply to %s.' ) ),
+                                '<a href="' . $parent_link . '">' . $name . '</a>'
+                        ) . "\n\n" . $comment_content;
+                }
+        }
+
         /**
          * Filters the text of a comment.
          *
@@ -971 +988 @@
          * @param WP_Comment $comment         The comment object.
          * @param array      $args            An array of arguments.
          */
-        return apply_filters( 'get_comment_text', $comment->comment_content, $comment, $args );
+        return apply_filters( 'get_comment_text', $comment_content, $comment, $args );
 }
 
 /**