Ticket #47014: 47014.0.diff

src/wp-includes/formatting.php

@@ -2465 +2465 @@
         // WP bug fix for LOVE <3 (and other situations with '<' before a number)
         $text = preg_replace( '#<([0-9]{1})#', '&lt;$1', $text );
 
-        while ( preg_match( '/<(\/?[\w:]*)\s*([^>]*)>/', $text, $regex ) ) {
+        while ( preg_match( '/<(\/?[\w:\-]*)\s*([^>]*)>/', $text, $regex ) ) {
                 $newtext .= $tagqueue;
 
                 $i = strpos( $text, $regex[0] );

tests/phpunit/tests/formatting/balanceTags.php

@@ -221 +221 @@
                 }
         }
 
+        /**
+         * Get custom element data.
+         *
+         * @return array Data.
+         */
+        public function get_custom_element_data() {
+                return array(
+                        array(
+                                '<my-custom-element>Test</my-custom-element>',
+                                '<my-custom-element>Test</my-custom-element>',
+                        ),
+                        array(
+                                '<my-custom-element>Test',
+                                '<my-custom-element>Test</my-custom-element>',
+                        ),
+                        array(
+                                'Test</my-custom-element>',
+                                'Test',
+                        ),
+                        array(
+                                '</my-custom-element>Test',
+                                'Test',
+                        ),
+                );
+        }
+
+        /**
+         * Test custom elements.
+         *
+         * @ticket 47014
+         * @dataProvider get_custom_element_data()
+         *
+         * @param string $source   Source.
+         * @param string $expected Expected.
+         */
+        public function test_custom_elements( $source, $expected ) {
+                $this->assertEquals( $expected, balanceTags( $source, true ) );
+        }
 }