Changeset 55767

Timestamp:

05/16/2023 02:43:46 PM (19 months ago)

Author:

audrasjb

Message:

Editor: Ensure block comments are of a valid form.

Ensures that the block delimiter comments are of a valid form: opening with <!-- and closing with -->.

Props xknown, isabel_brison, peterwilsoncc.
Merges [55762] to branch 6.2.

File:

• branches/6.2/src/wp-includes/blocks.php (modified) (2 diffs)

branches/6.2/src/wp-includes/blocks.php

@@ -799 +799 @@
     $result = '';
 
+    if ( false !== strpos( $text, '<!--' ) && false !== strpos( $text, '--->' ) ) {
+        $text = preg_replace_callback( '%<!--(.*?)--->%', '_filter_block_content_callback', $text );
+    }
+
     $blocks = parse_blocks( $text );
     foreach ( $blocks as $block ) {
@@ -806 +810 @@
 
     return $result;
+}
+
+/**
+ * Callback used for regular expression replacement in filter_block_content().
+ *
+ * @private
+ * @since 6.2.1
+ *
+ * @param array $matches Array of preg_replace_callback matches.
+ * @return string Replacement string.
+ */
+function _filter_block_content_callback( $matches ) {
+    return '<!--' . rtrim( $matches[1], '-' ) . '-->';
 }