+ /**
+ * Expand a string of the form `jquery.foo,bar|jquery.ui.baz,quux` to
+ * an array of module names like `[ 'jquery.foo', 'jquery.bar',
+ * 'jquery.ui.baz', 'jquery.ui.quux' ]`.
+ *
+ * This process is reversed by ResourceLoader::makePackedModulesString().
+ *
+ * @since 1.33
+ * @param string $modules Packed module name list
+ * @return array Array of module names
+ */
+ public static function expandModuleNames( $modules ) {
+ $retval = [];
+ $exploded = explode( '|', $modules );
+ foreach ( $exploded as $group ) {
+ if ( strpos( $group, ',' ) === false ) {
+ // This is not a set of modules in foo.bar,baz notation
+ // but a single module
+ $retval[] = $group;
+ } else {
+ // This is a set of modules in foo.bar,baz notation
+ $pos = strrpos( $group, '.' );
+ if ( $pos === false ) {
+ // Prefixless modules, i.e. without dots
+ $retval = array_merge( $retval, explode( ',', $group ) );
+ } else {
+ // We have a prefix and a bunch of suffixes
+ $prefix = substr( $group, 0, $pos ); // 'foo'
+ $suffixes = explode( ',', substr( $group, $pos + 1 ) ); // [ 'bar', 'baz' ]
+ foreach ( $suffixes as $suffix ) {
+ $retval[] = "$prefix.$suffix";
+ }
+ }
+ }
+ }
+ return $retval;
+ }
+