Ticket #35582: 35582.1.diff

src/wp-includes/functions.php

@@ -3276 +3276 @@
 }
 
 /**
+ * Clean up an array, comma- or space-separated list of slugs.
+ *
+ * @since 4.5.0
+ *
+ * @param array|string $list List of slugs.
+ * @return array Sanitized array of slugs.
+ */
+function wp_parse_slug_list( $list ) {
+        if ( ! is_array( $list ) ) {
+                $list = preg_split( '/[\s,]+/', $list );
+        }
+
+        foreach( $list as $key => $value ) {
+                $list[ $key ] = sanitize_title( $value );
+        }
+
+        return array_unique( $list );
+}
+
+/**
  * Extract a slice of an array, given a list of keys.
  *
  * @since 3.1.0

tests/phpunit/tests/functions.php

@@ -412 +412 @@
         }
 
         /**
+         * @dataProvider data_wp_parse_slug_list
+         */
+        function test_wp_parse_slug_list( $expected, $actual ) {
+                $this->assertSame( $expected, array_values( wp_parse_slug_list( $actual ) ) );
+        }
+
+        function data_wp_parse_slug_list() {
+                return array(
+                        array( array( 'apple', 'banana', 'carrot', 'dog' ), 'apple,banana,carrot,dog' ),
+                        array( array( 'apple', 'banana', 'carrot', 'dog' ), 'apple, banana,,carrot,dog' ),
+                        array( array( 'apple', 'banana', 'carrot', 'dog' ), 'apple banana carrot dog' ),
+                        array( array( 'apple', 'banana-carrot', 'd-o-g' ), array( 'apple ', 'banana carrot', 'd o g' ) ),
+                );
+        }
+
+        /**
          * @ticket 19354
          */
         function test_data_is_not_an_allowed_protocol() {