Ticket #23776: autoembed-preserve-whitespace.diff

src/wp-includes/class-wp-embed.php

@@ -326 +326 @@
          * @return string Potentially modified $content.
          */
         public function autoembed( $content ) {
-                return preg_replace_callback( '|^\s*(https?://[^\s"]+)\s*$|im', array( $this, 'autoembed_callback' ), $content );
+                return preg_replace_callback( '|^(\s*)(https?://[^\s"]+)(\s*)$|im', array( $this, 'autoembed_callback' ), $content );
         }
 
         /**
@@ -340 +340 @@
         public function autoembed_callback( $match ) {
                 $oldval = $this->linkifunknown;
                 $this->linkifunknown = false;
-                $return = $this->shortcode( array(), $match[1] );
+                $return = $this->shortcode( array(), $match[2] );
                 $this->linkifunknown = $oldval;
 
-                return "\n$return\n";
+                return $match[1] . $return . $match[3];
         }
 
         /**