Docs: Improve inline comments per the documentation standards.

Includes minor code layout fixes for better readability.

See #48303.
Built from https://develop.svn.wordpress.org/trunk@47122


git-svn-id: http://core.svn.wordpress.org/trunk@46922 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-activate.php

@@ -68,7 +68,7 @@ if ( is_object( $wp_object_cache ) ) {
 	$wp_object_cache->cache_enabled = false;
 }
 
-// Fix for page title
+// Fix for page title.
 $wp_query->is_404 = false;
 
 /**

wp-admin/admin-ajax.php

@@ -27,7 +27,7 @@ send_origin_headers();
 header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
 header( 'X-Robots-Tag: noindex' );
 
-// Require an action parameter
+// Require an action parameter.
 if ( empty( $_REQUEST['action'] ) ) {
 	wp_die( '0', 400 );
 }
@@ -141,7 +141,7 @@ $core_actions_post = array(
 	'health-check-get-sizes',
 );
 
-// Deprecated
+// Deprecated.
 $core_actions_post_deprecated = array( 'wp-fullscreen-save-post', 'press-this-save-post', 'press-this-add-category' );
 $core_actions_post            = array_merge( $core_actions_post, $core_actions_post_deprecated );
 
@@ -189,5 +189,5 @@ if ( is_user_logged_in() ) {
 	 */
 	do_action( "wp_ajax_nopriv_{$action}" );
 }
-// Default status
+// Default status.
 wp_die( '0' );

wp-admin/admin-footer.php

@@ -6,7 +6,7 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }
@@ -104,7 +104,7 @@ do_action( 'admin_print_footer_scripts' );
  */
 do_action( "admin_footer-{$hook_suffix}" ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 
-// get_site_option() won't exist when auto upgrading from <= 2.7
+// get_site_option() won't exist when auto upgrading from <= 2.7.
 if ( function_exists( 'get_site_option' ) ) {
 	if ( false === get_site_option( 'can_compress_scripts' ) ) {
 		compression_test();

wp-admin/admin.php

@@ -93,12 +93,12 @@ require_once( ABSPATH . 'wp-admin/includes/admin.php' );
 
 auth_redirect();
 
-// Schedule trash collection
+// Schedule trash collection.
 if ( ! wp_next_scheduled( 'wp_scheduled_delete' ) && ! wp_installing() ) {
 	wp_schedule_event( time(), 'daily', 'wp_scheduled_delete' );
 }
 
-// Schedule Transient cleanup.
+// Schedule transient cleanup.
 if ( ! wp_next_scheduled( 'delete_expired_transients' ) && ! wp_installing() ) {
 	wp_schedule_event( time(), 'daily', 'delete_expired_transients' );
 }
@@ -182,7 +182,7 @@ if ( isset( $plugin_page ) ) {
 
 		// Back-compat for plugins using add_management_page().
 		if ( empty( $page_hook ) && 'edit.php' == $pagenow && '' != get_plugin_page_hook( $plugin_page, 'tools.php' ) ) {
-			// There could be plugin specific params on the URL, so we need the whole query string
+			// There could be plugin specific params on the URL, so we need the whole query string.
 			if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
 				$query_string = $_SERVER['QUERY_STRING'];
 			} else {
@@ -347,7 +347,7 @@ if ( isset( $plugin_page ) ) {
 
 	include( ABSPATH . 'wp-admin/admin-footer.php' );
 
-	// Make sure rules are flushed
+	// Make sure rules are flushed.
 	flush_rewrite_rules( false );
 
 	exit();

wp-admin/async-upload.php

@@ -38,7 +38,7 @@ if ( ! current_user_can( 'upload_files' ) ) {
 	wp_die( __( 'Sorry, you are not allowed to upload files.' ) );
 }
 
-// just fetch the detail form for that attachment
+// Just fetch the detail form for that attachment.
 if ( isset( $_REQUEST['attachment_id'] ) && intval( $_REQUEST['attachment_id'] ) && $_REQUEST['fetch'] ) {
 	$id   = intval( $_REQUEST['attachment_id'] );
 	$post = get_post( $id );
@@ -112,7 +112,7 @@ if ( $_REQUEST['short'] ) {
 	// Short form response - attachment ID only.
 	echo $id;
 } else {
-	// Long form response - big chunk of html.
+	// Long form response - big chunk of HTML.
 	$type = $_REQUEST['type'];
 
 	/**

wp-admin/comment.php

@@ -137,7 +137,7 @@ switch ( $action ) {
 				break;
 		}
 
-		if ( $comment->comment_approved != '0' ) { // if not unapproved
+		if ( $comment->comment_approved != '0' ) { // If not unapproved.
 			$message = '';
 			switch ( $comment->comment_approved ) {
 				case '1':
@@ -355,6 +355,6 @@ switch ( $action ) {
 	default:
 		wp_die( __( 'Unknown action.' ) );
 
-} // end switch
+} // End switch.
 
 include( ABSPATH . 'wp-admin/admin-footer.php' );

wp-admin/credits.php

@@ -133,7 +133,7 @@ include( ABSPATH . 'wp-admin/admin-footer.php' );
 
 return;
 
-// These are strings returned by the API that we want to be translatable
+// These are strings returned by the API that we want to be translatable.
 __( 'Project Leaders' );
 /* translators: %s: The current WordPress version number. */
 __( 'Core Contributors to WordPress %s' );

wp-admin/edit-comments.php

@@ -52,7 +52,7 @@ if ( $doaction ) {
 
 	wp_defer_comment_counting( true );
 
-	foreach ( $comment_ids as $comment_id ) { // Check the permissions on each
+	foreach ( $comment_ids as $comment_id ) { // Check the permissions on each.
 		if ( ! current_user_can( 'edit_comment', $comment_id ) ) {
 			continue;
 		}

wp-admin/edit-form-advanced.php

@@ -6,7 +6,7 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }
@@ -95,7 +95,7 @@ if ( $thumbnail_support ) {
 	wp_enqueue_media( array( 'post' => $post_ID ) );
 }
 
-// Add the local autosave notice HTML
+// Add the local autosave notice HTML.
 add_action( 'admin_footer', '_local_storage_notice' );
 
 /*
@@ -242,7 +242,7 @@ $form_action  = 'editpost';
 $nonce_action = 'update-post_' . $post_ID;
 $form_extra  .= "<input type='hidden' id='post_ID' name='post_ID' value='" . esc_attr( $post_ID ) . "' />";
 
-// Detect if there exists an autosave newer than the post and if that autosave is different than the post
+// Detect if there exists an autosave newer than the post and if that autosave is different than the post.
 if ( $autosave && mysql2date( 'U', $autosave->post_modified_gmt, false ) > mysql2date( 'U', $post->post_modified_gmt, false ) ) {
 	foreach ( _wp_post_revision_fields( $post ) as $autosave_field => $_autosave_field ) {
 		if ( normalize_whitespace( $autosave->$autosave_field ) != normalize_whitespace( $post->$autosave_field ) ) {

wp-admin/edit-form-blocks.php

@@ -8,7 +8,7 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }
@@ -148,10 +148,12 @@ $font_sizes    = current( (array) get_theme_support( 'editor-font-sizes' ) );
  */
 $allowed_block_types = apply_filters( 'allowed_block_types', true, $post );
 
-// Get all available templates for the post/page attributes meta-box.
+/*
-// The "Default template" array element should only be added if the array is
+ * Get all available templates for the post/page attributes meta-box.
-// not empty so we do not trigger the template select element without any options
+ * The "Default template" array element should only be added if the array is
-// besides the default value.
+ * not empty so we do not trigger the template select element without any options
+ * besides the default value.
+ */
 $available_templates = wp_get_theme()->get_page_templates( get_post( $post->ID ) );
 $available_templates = ! empty( $available_templates ) ? array_merge(
 	array(

wp-admin/edit-form-comment.php

@@ -6,7 +6,7 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }

wp-admin/edit-link-form.php

@@ -6,7 +6,7 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }

wp-admin/edit-tag-form.php

@@ -6,12 +6,12 @@
  * @subpackage Administration
  */
 
-// don't load directly
+// Don't load directly.
 if ( ! defined( 'ABSPATH' ) ) {
 	die( '-1' );
 }
 
-// Back compat hooks
+// Back compat hooks.
 if ( 'category' == $taxonomy ) {
 	/**
 	 * Fires before the Edit Category form.
@@ -191,7 +191,7 @@ if ( isset( $tag->name ) ) {
 			<p class="description"><?php _e( 'The description is not prominent by default; however, some themes may show it.' ); ?></p></td>
 		</tr>
 		<?php
-		// Back compat hooks
+		// Back compat hooks.
 		if ( 'category' == $taxonomy ) {
 			/**
 			 * Fires after the Edit Category form fields are displayed.
@@ -238,7 +238,7 @@ if ( isset( $tag->name ) ) {
 		?>
 	</table>
 <?php
-// Back compat hooks
+// Back compat hooks.
 if ( 'category' == $taxonomy ) {
 	/** This action is documented in wp-admin/edit-tags.php */
 	do_action_deprecated( 'edit_category_form', array( $tag ), '3.0.0', '{$taxonomy}_add_form' );

wp-admin/edit.php

@@ -47,7 +47,7 @@ if ( ! current_user_can( $post_type_object->cap->edit_posts ) ) {
 $wp_list_table = _get_list_table( 'WP_Posts_List_Table' );
 $pagenum       = $wp_list_table->get_pagenum();
 
-// Back-compat for viewing comments of an entry
+// Back-compat for viewing comments of an entry.
 foreach ( array( 'p', 'attachment_id', 'page_id' ) as $_redirect ) {
 	if ( ! empty( $_REQUEST[ $_redirect ] ) ) {
 		wp_redirect( admin_url( 'edit-comments.php?p=' . absint( $_REQUEST[ $_redirect ] ) ) );

wp-admin/import.php

@@ -39,7 +39,7 @@ if ( current_user_can( 'install_plugins' ) ) {
 	$popular_importers = array();
 }
 
-// Detect and redirect invalid importers like 'movabletype', which is registered as 'mt'
+// Detect and redirect invalid importers like 'movabletype', which is registered as 'mt'.
 if ( ! empty( $_GET['invalid'] ) && isset( $popular_importers[ $_GET['invalid'] ] ) ) {
 	$importer_id = $popular_importers[ $_GET['invalid'] ]['importer-id'];
 	if ( $importer_id != $_GET['invalid'] ) { // Prevent redirect loops.
@@ -93,7 +93,7 @@ foreach ( $popular_importers as $pop_importer => $pop_data ) {
 }
 
 if ( empty( $importers ) ) {
-	echo '<p>' . __( 'No importers are available.' ) . '</p>'; // TODO: make more helpful
+	echo '<p>' . __( 'No importers are available.' ) . '</p>'; // TODO: Make more helpful.
 } else {
 	uasort( $importers, '_usort_by_first_member' );
 	?>

wp-admin/includes/admin-filters.php

@@ -128,7 +128,7 @@ add_action( 'upgrader_process_complete', 'wp_version_check', 10, 0 );
 add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );
 add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
 
-// Privacy hooks
+// Privacy hooks.
 add_filter( 'wp_privacy_personal_data_erasure_page', 'wp_privacy_process_personal_data_erasure_page', 10, 5 );
 add_filter( 'wp_privacy_personal_data_export_page', 'wp_privacy_process_personal_data_export_page', 10, 7 );
 add_action( 'wp_privacy_personal_data_export_file', 'wp_privacy_generate_personal_data_export_file', 10 );

wp-admin/includes/admin.php

@@ -74,7 +74,7 @@ require_once( ABSPATH . 'wp-admin/includes/theme.php' );
 require_once( ABSPATH . 'wp-admin/includes/privacy-tools.php' );
 
 /** WordPress Privacy List Table classes. */
-// Previously in wp-admin/includes/user.php. Need to be loaded for backwards compatibility.
+// Previously in wp-admin/includes/user.php. Need to be loaded for backward compatibility.
 require_once( ABSPATH . 'wp-admin/includes/class-wp-privacy-requests-table.php' );
 require_once( ABSPATH . 'wp-admin/includes/class-wp-privacy-data-export-requests-list-table.php' );
 require_once( ABSPATH . 'wp-admin/includes/class-wp-privacy-data-removal-requests-list-table.php' );

wp-admin/includes/ajax-actions.php

@@ -22,7 +22,7 @@
 function wp_ajax_nopriv_heartbeat() {
 	$response = array();
 
-	// screen_id is the same as $current_screen->id and the JS global 'pagenow'.
+	// 'screen_id' is the same as $current_screen->id and the JS global 'pagenow'.
 	if ( ! empty( $_POST['screen_id'] ) ) {
 		$screen_id = sanitize_key( $_POST['screen_id'] );
 	} else {
@@ -272,23 +272,23 @@ function wp_ajax_autocomplete_user() {
 
 	$return = array();
 
-	// Check the type of request
+	// Check the type of request.
-	// Current allowed values are `add` and `search`
+	// Current allowed values are `add` and `search`.
 	if ( isset( $_REQUEST['autocomplete_type'] ) && 'search' === $_REQUEST['autocomplete_type'] ) {
 		$type = $_REQUEST['autocomplete_type'];
 	} else {
 		$type = 'add';
 	}
 
-	// Check the desired field for value
+	// Check the desired field for value.
-	// Current allowed values are `user_email` and `user_login`
+	// Current allowed values are `user_email` and `user_login`.
 	if ( isset( $_REQUEST['autocomplete_field'] ) && 'user_email' === $_REQUEST['autocomplete_field'] ) {
 		$field = $_REQUEST['autocomplete_field'];
 	} else {
 		$field = 'user_login';
 	}
 
-	// Exclude current users of this blog
+	// Exclude current users of this blog.
 	if ( isset( $_REQUEST['site_id'] ) ) {
 		$id = absint( $_REQUEST['site_id'] );
 	} else {
@@ -433,7 +433,7 @@ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) {
 	$page     = isset( $_POST['_page'] ) ? (int) $_POST['_page'] : 0;
 	$url      = isset( $_POST['_url'] ) ? esc_url_raw( $_POST['_url'] ) : '';
 
-	// JS didn't send us everything we need to know. Just die with success message
+	// JS didn't send us everything we need to know. Just die with success message.
 	if ( ! $total || ! $per_page || ! $page || ! $url ) {
 		$time           = time();
 		$comment        = get_comment( $comment_id );
@@ -482,7 +482,7 @@ function _wp_ajax_delete_comment_response( $comment_id, $delta = -1 ) {
 		$total = 0;
 	}
 
-	// Only do the expensive stuff on a page-break, and about 1 other time per page
+	// Only do the expensive stuff on a page-break, and about 1 other time per page.
 	if ( 0 == $total % $per_page || 1 == mt_rand( 1, $per_page ) ) {
 		$post_id = 0;
 		// What type of comment count are we looking for?
@@ -600,7 +600,7 @@ function _wp_ajax_add_hierarchical_term() {
 
 		$checked_categories[] = $cat_id;
 
-		if ( $parent ) { // Do these all at once in a second
+		if ( $parent ) { // Do these all at once in a second.
 			continue;
 		}
 
@@ -626,11 +626,11 @@ function _wp_ajax_add_hierarchical_term() {
 		);
 	}
 
-	if ( $parent ) { // Foncy - replace the parent and all its children
+	if ( $parent ) { // Foncy - replace the parent and all its children.
 		$parent  = get_term( $parent, $taxonomy->name );
 		$term_id = $parent->term_id;
 
-		while ( $parent->parent ) { // get the top parent
+		while ( $parent->parent ) { // Get the top parent.
 			$parent = get_term( $parent->parent, $taxonomy->name );
 			if ( is_wp_error( $parent ) ) {
 				break;
@@ -716,7 +716,8 @@ function wp_ajax_delete_comment() {
 
 		$r = wp_untrash_comment( $comment );
 
-		if ( ! isset( $_POST['comment_status'] ) || $_POST['comment_status'] != 'trash' ) { // undo trash, not in trash
+		// Undo trash, not in trash.
+		if ( ! isset( $_POST['comment_status'] ) || $_POST['comment_status'] != 'trash' ) {
 			$delta = 1;
 		}
 	} elseif ( isset( $_POST['spam'] ) && 1 == $_POST['spam'] ) {
@@ -732,7 +733,8 @@ function wp_ajax_delete_comment() {
 
 		$r = wp_unspam_comment( $comment );
 
-		if ( ! isset( $_POST['comment_status'] ) || $_POST['comment_status'] != 'spam' ) { // undo spam, not in spam
+		// Undo spam, not in spam.
+		if ( ! isset( $_POST['comment_status'] ) || $_POST['comment_status'] != 'spam' ) {
 			$delta = 1;
 		}
 	} elseif ( isset( $_POST['delete'] ) && 1 == $_POST['delete'] ) {
@@ -741,7 +743,8 @@ function wp_ajax_delete_comment() {
 		wp_die( -1 );
 	}
 
-	if ( $r ) { // Decide if we need to send back '1' or a more complicated response including page links and comment counts
+	if ( $r ) {
+		// Decide if we need to send back '1' or a more complicated response including page links and comment counts.
 		_wp_ajax_delete_comment_response( $comment->comment_ID, $delta );
 	}
 
@@ -989,7 +992,7 @@ function wp_ajax_dim_comment() {
 		$x->send();
 	}
 
-	// Decide if we need to send back '1' or a more complicated response including page links and comment counts
+	// Decide if we need to send back '1' or a more complicated response including page links and comment counts.
 	_wp_ajax_delete_comment_response( $comment->comment_ID );
 	wp_die( 0 );
 }
@@ -1161,7 +1164,7 @@ function wp_ajax_get_tagcloud() {
 		$tags[ $key ]->id   = $tag->term_id;
 	}
 
-	// We need raw tag names here, so don't filter the output
+	// We need raw tag names here, so don't filter the output.
 	$return = wp_generate_tag_cloud(
 		$tags,
 		array(
@@ -1288,8 +1291,8 @@ function wp_ajax_replyto_comment( $action ) {
 			}
 
 			if ( wp_create_nonce( 'unfiltered-html-comment' ) != $_POST['_wp_unfiltered_html_comment'] ) {
-				kses_remove_filters(); // start with a clean slate
+				kses_remove_filters(); // Start with a clean slate.
-				kses_init_filters(); // set up the filters
+				kses_init_filters();   // Set up the filters.
 				remove_filter( 'pre_comment_content', 'wp_filter_post_kses' );
 				add_filter( 'pre_comment_content', 'wp_filter_kses' );
 			}
@@ -1478,7 +1481,7 @@ function wp_ajax_add_menu_item() {
 			$_menu_items = array_map( 'wp_setup_nav_menu_item', array( $_object ) );
 			$_menu_item  = reset( $_menu_items );
 
-			// Restore the missing menu item properties
+			// Restore the missing menu item properties.
 			$menu_item_data['menu-item-description'] = $_menu_item->description;
 		}
 
@@ -1498,7 +1501,7 @@ function wp_ajax_add_menu_item() {
 		if ( ! empty( $menu_obj->ID ) ) {
 			$menu_obj        = wp_setup_nav_menu_item( $menu_obj );
 			$menu_obj->title = empty( $menu_obj->title ) ? __( 'Menu Item' ) : $menu_obj->title;
-			$menu_obj->label = $menu_obj->title; // don't show "(pending)" in ajax-added items
+			$menu_obj->label = $menu_obj->title; // Don't show "(pending)" in ajax-added items.
 			$menu_items[]    = $menu_obj;
 		}
 	}
@@ -1548,7 +1551,7 @@ function wp_ajax_add_meta() {
 		// If the post is an autodraft, save the post as a draft and then attempt to save the meta.
 		if ( $post->post_status == 'auto-draft' ) {
 			$post_data                = array();
-			$post_data['action']      = 'draft'; // Warning fix
+			$post_data['action']      = 'draft'; // Warning fix.
 			$post_data['post_ID']     = $pid;
 			$post_data['post_type']   = $post->post_type;
 			$post_data['post_status'] = 'draft';
@@ -1608,7 +1611,7 @@ function wp_ajax_add_meta() {
 		$meta = get_metadata_by_mid( 'post', $mid );
 
 		if ( ! $meta ) {
-			wp_die( 0 ); // if meta doesn't exist
+			wp_die( 0 ); // If meta doesn't exist.
 		}
 
 		if (
@@ -1731,7 +1734,8 @@ function wp_ajax_closed_postboxes() {
 	}
 
 	if ( is_array( $hidden ) ) {
-		$hidden = array_diff( $hidden, array( 'submitdiv', 'linksubmitdiv', 'manage-menu', 'create-menu' ) ); // postboxes that are always shown
+		// Postboxes that are always shown.
+		$hidden = array_diff( $hidden, array( 'submitdiv', 'linksubmitdiv', 'manage-menu', 'create-menu' ) );
 		update_user_option( $user->ID, "metaboxhidden_$page", $hidden, true );
 	}
 
@@ -2620,7 +2624,7 @@ function wp_ajax_image_editor() {
  * @since 3.1.0
  */
 function wp_ajax_set_post_thumbnail() {
-	$json = ! empty( $_REQUEST['json'] ); // New-style request
+	$json = ! empty( $_REQUEST['json'] ); // New-style request.
 
 	$post_ID = intval( $_POST['post_id'] );
 	if ( ! current_user_can( 'edit_post', $post_ID ) ) {
@@ -3226,7 +3230,7 @@ function wp_ajax_send_attachment_to_editor() {
 		$html = stripslashes_deep( $_POST['html'] );
 	} else {
 		$html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
-		$rel  = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized
+		$rel  = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized.
 
 		if ( ! empty( $url ) ) {
 			$html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>';
@@ -3287,7 +3291,7 @@ function wp_ajax_send_link_to_editor() {
 	$fallback = $wp_embed->maybe_make_link( $src );
 
 	if ( $check_embed !== $fallback ) {
-		// TinyMCE view for [embed] will parse this
+		// TinyMCE view for [embed] will parse this.
 		$html = '[embed]' . $src . '[/embed]';
 	} elseif ( $link_text ) {
 		$html = '<a href="' . esc_url( $src ) . '">' . $link_text . '</a>';
@@ -3327,7 +3331,7 @@ function wp_ajax_heartbeat() {
 	$data        = array();
 	$nonce_state = wp_verify_nonce( $_POST['_nonce'], 'heartbeat-nonce' );
 
-	// screen_id is the same as $current_screen->id and the JS global 'pagenow'.
+	// 'screen_id' is the same as $current_screen->id and the JS global 'pagenow'.
 	if ( ! empty( $_POST['screen_id'] ) ) {
 		$screen_id = sanitize_key( $_POST['screen_id'] );
 	} else {
@@ -3392,7 +3396,7 @@ function wp_ajax_heartbeat() {
 	 */
 	do_action( 'heartbeat_tick', $response, $screen_id );
 
-	// Send the current time according to the server
+	// Send the current time according to the server.
 	$response['server_time'] = time();
 
 	wp_send_json( $response );
@@ -3735,7 +3739,7 @@ function wp_ajax_parse_media_shortcode() {
 		$post = get_post( (int) $_POST['post_ID'] );
 	}
 
-	// the embed shortcode requires a post
+	// The embed shortcode requires a post.
 	if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) {
 		if ( 'embed' === $shortcode ) {
 			wp_send_json_error();

wp-admin/includes/class-automatic-upgrader-skin.php

@@ -41,8 +41,10 @@ class Automatic_Upgrader_Skin extends WP_Upgrader_Skin {
 		if ( $context ) {
 			$this->options['context'] = $context;
 		}
-		// TODO: fix up request_filesystem_credentials(), or split it, to allow us to request a no-output version
+		/*
-		// This will output a credentials form in event of failure, We don't want that, so just hide with a buffer
+		 * TODO: Fix up request_filesystem_credentials(), or split it, to allow us to request a no-output version.
+		 * This will output a credentials form in event of failure. We don't want that, so just hide with a buffer.
+		 */
 		ob_start();
 		$result = parent::request_filesystem_credentials( $error, $context, $allow_relaxed_file_ownership );
 		ob_end_clean();

wp-admin/includes/class-core-upgrader.php

@@ -115,7 +115,7 @@ class Core_Upgrader extends WP_Upgrader {
 			$to_download = 'full';
 		}
 
-		// Lock to prevent multiple Core Updates occurring
+		// Lock to prevent multiple Core Updates occurring.
 		$lock = WP_Upgrader::create_lock( 'core_updater', 15 * MINUTE_IN_SECONDS );
 		if ( ! $lock ) {
 			return new WP_Error( 'locked', $this->strings['locked'] );
@@ -220,7 +220,7 @@ class Core_Upgrader extends WP_Upgrader {
 			)
 		);
 
-		// Clear the current updates
+		// Clear the current updates.
 		delete_site_transient( 'update_core' );
 
 		if ( ! $parsed_args['do_rollback'] ) {
@@ -274,6 +274,7 @@ class Core_Upgrader extends WP_Upgrader {
 
 		$current_branch = implode( '.', array_slice( preg_split( '/[.-]/', $wp_version ), 0, 2 ) ); // x.y
 		$new_branch     = implode( '.', array_slice( preg_split( '/[.-]/', $offered_ver ), 0, 2 ) ); // x.y
+
 		$current_is_development_version = (bool) strpos( $wp_version, '-' );
 
 		// Defaults:
@@ -284,17 +285,17 @@ class Core_Upgrader extends WP_Upgrader {
 		// WP_AUTO_UPDATE_CORE = true (all), 'minor', false.
 		if ( defined( 'WP_AUTO_UPDATE_CORE' ) ) {
 			if ( false === WP_AUTO_UPDATE_CORE ) {
-				// Defaults to turned off, unless a filter allows it
+				// Defaults to turned off, unless a filter allows it.
 				$upgrade_dev   = false;
 				$upgrade_minor = false;
 				$upgrade_major = false;
 			} elseif ( true === WP_AUTO_UPDATE_CORE ) {
-				// ALL updates for core
+				// ALL updates for core.
 				$upgrade_dev   = true;
 				$upgrade_minor = true;
 				$upgrade_major = true;
 			} elseif ( 'minor' === WP_AUTO_UPDATE_CORE ) {
-				// Only minor updates for core
+				// Only minor updates for core.
 				$upgrade_dev   = false;
 				$upgrade_minor = true;
 				$upgrade_major = false;
@@ -306,7 +307,7 @@ class Core_Upgrader extends WP_Upgrader {
 			return false;
 		}
 
-		// 2: If we're running a newer version, that's a nope
+		// 2: If we're running a newer version, that's a nope.
 		if ( version_compare( $wp_version, $offered_ver, '>' ) ) {
 			return false;
 		}
@@ -323,15 +324,17 @@ class Core_Upgrader extends WP_Upgrader {
 				return false;
 			}
 
-			// Cannot update if we're retrying the same A to B update that caused a non-critical failure.
+			/*
-			// Some non-critical failures do allow retries, like download_failed.
+			 * Cannot update if we're retrying the same A to B update that caused a non-critical failure.
-			// 3.7.1 => 3.7.2 resulted in files_not_writable, if we are still on 3.7.1 and still trying to update to 3.7.2.
+			 * Some non-critical failures do allow retries, like download_failed.
+			 * 3.7.1 => 3.7.2 resulted in files_not_writable, if we are still on 3.7.1 and still trying to update to 3.7.2.
+			 */
 			if ( empty( $failure_data['retry'] ) && $wp_version == $failure_data['current'] && $offered_ver == $failure_data['attempted'] ) {
 				return false;
 			}
 		}
 
-		// 3: 3.7-alpha-25000 -> 3.7-alpha-25678 -> 3.7-beta1 -> 3.7-beta2
+		// 3: 3.7-alpha-25000 -> 3.7-alpha-25678 -> 3.7-beta1 -> 3.7-beta2.
 		if ( $current_is_development_version ) {
 
 			/**
@@ -348,7 +351,7 @@ class Core_Upgrader extends WP_Upgrader {
 			// Else fall through to minor + major branches below.
 		}
 
-		// 4: Minor In-branch updates (3.7.0 -> 3.7.1 -> 3.7.2 -> 3.7.4)
+		// 4: Minor in-branch updates (3.7.0 -> 3.7.1 -> 3.7.2 -> 3.7.4).
 		if ( $current_branch == $new_branch ) {
 
 			/**
@@ -361,7 +364,7 @@ class Core_Upgrader extends WP_Upgrader {
 			return apply_filters( 'allow_minor_auto_core_updates', $upgrade_minor );
 		}
 
-		// 5: Major version updates (3.7.0 -> 3.8.0 -> 3.9.1)
+		// 5: Major version updates (3.7.0 -> 3.8.0 -> 3.9.1).
 		if ( version_compare( $new_branch, $current_branch, '>' ) ) {
 
 			/**
@@ -374,7 +377,7 @@ class Core_Upgrader extends WP_Upgrader {
 			return apply_filters( 'allow_major_auto_core_updates', $upgrade_major );
 		}
 
-		// If we're not sure, we don't want it
+		// If we're not sure, we don't want it.
 		return false;
 	}
 
@@ -398,7 +401,7 @@ class Core_Upgrader extends WP_Upgrader {
 		}
 
 		foreach ( $checksums as $file => $checksum ) {
-			// Skip files which get updated
+			// Skip files which get updated.
 			if ( 'wp-content' == substr( $file, 0, 10 ) ) {
 				continue;
 			}

wp-admin/includes/class-custom-background.php

@@ -124,7 +124,7 @@ class Custom_Background {
 		}
 
 		if ( isset( $_POST['remove-background'] ) ) {
-			// @TODO: Uploaded files are not removed here.
+			// @todo Uploaded files are not removed here.
 			check_admin_referer( 'custom-background-remove', '_wpnonce-custom-background-remove' );
 			set_theme_mod( 'background_image', '' );
 			set_theme_mod( 'background_image_thumb', '' );
@@ -284,7 +284,7 @@ class Custom_Background {
 				. " background-attachment: $background_attachment;";
 			}
 			?>
-	<div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // must be double quote, see above ?>
+	<div id="custom-background-image" style="<?php echo $background_styles; ?>"><?php // Must be double quote, see above. ?>
 			<?php if ( $background_image_thumb ) { ?>
 		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" /><br />
 		<img class="custom-background-image" src="<?php echo $background_image_thumb; ?>" style="visibility:hidden;" alt="" />
@@ -503,7 +503,7 @@ class Custom_Background {
 		$file     = $file['file'];
 		$filename = wp_basename( $file );
 
-		// Construct the object array
+		// Construct the object array.
 		$object = array(
 			'post_title'     => $filename,
 			'post_content'   => $url,
@@ -512,10 +512,10 @@ class Custom_Background {
 			'context'        => 'custom-background',
 		);
 
-		// Save the data
+		// Save the data.
 		$id = wp_insert_attachment( $object, $file );
 
-		// Add the meta-data
+		// Add the metadata.
 		wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
 		update_post_meta( $id, '_wp_attachment_is_custom_background', get_option( 'stylesheet' ) );
 
@@ -525,7 +525,7 @@ class Custom_Background {
 		set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );
 
 		/** This action is documented in wp-admin/includes/class-custom-image-header.php */
-		do_action( 'wp_create_file_in_uploads', $file, $id ); // For replication
+		do_action( 'wp_create_file_in_uploads', $file, $id ); // For replication.
 		$this->updated = true;
 	}
 

wp-admin/includes/class-custom-image-header.php

@@ -800,7 +800,7 @@ endif;
 		}
 
 		$max_width = 0;
-		// For flex, limit size of image displayed to 1500px unless theme says otherwise
+		// For flex, limit size of image displayed to 1500px unless theme says otherwise.
 		if ( current_theme_supports( 'custom-header', 'flex-width' ) ) {
 			$max_width = 1500;
 		}
@@ -810,10 +810,10 @@ endif;
 		}
 		$max_width = max( $max_width, get_theme_support( 'custom-header', 'width' ) );
 
-		// If flexible height isn't supported and the image is the exact right size
+		// If flexible height isn't supported and the image is the exact right size.
 		if ( ! current_theme_supports( 'custom-header', 'flex-height' ) && ! current_theme_supports( 'custom-header', 'flex-width' )
 			&& $width == get_theme_support( 'custom-header', 'width' ) && $height == get_theme_support( 'custom-header', 'height' ) ) {
-			// Add the meta-data
+			// Add the metadata.
 			if ( file_exists( $file ) ) {
 				wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 			}
@@ -828,7 +828,7 @@ endif;
 			 * @param string $file          Path to the file.
 			 * @param int    $attachment_id Attachment ID.
 			 */
-			do_action( 'wp_create_file_in_uploads', $file, $attachment_id ); // For replication
+			do_action( 'wp_create_file_in_uploads', $file, $attachment_id ); // For replication.
 
 			return $this->finished();
 		} elseif ( $width > $max_width ) {
@@ -839,7 +839,7 @@ endif;
 			}
 
 			/** This filter is documented in wp-admin/includes/class-custom-image-header.php */
-			$image = apply_filters( 'wp_create_file_in_uploads', $image, $attachment_id ); // For replication
+			$image = apply_filters( 'wp_create_file_in_uploads', $image, $attachment_id ); // For replication.
 
 			$url    = str_replace( wp_basename( $url ), wp_basename( $image ), $url );
 			$width  = $width / $oitar;
@@ -910,7 +910,7 @@ endif;
 		$file     = $file['file'];
 		$filename = wp_basename( $file );
 
-		// Construct the object array
+		// Construct the object array.
 		$object = array(
 			'post_title'     => $filename,
 			'post_content'   => $url,
@@ -919,7 +919,7 @@ endif;
 			'context'        => 'custom-header',
 		);
 
-		// Save the data
+		// Save the data.
 		$attachment_id = wp_insert_attachment( $object, $file );
 		return compact( 'attachment_id', 'file', 'filename', 'url', 'type' );
 	}
@@ -982,7 +982,7 @@ endif;
 		}
 
 		/** This filter is documented in wp-admin/includes/class-custom-image-header.php */
-		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication
+		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication.
 
 		$object = $this->create_attachment_object( $cropped, $attachment_id );
 
@@ -990,7 +990,7 @@ endif;
 			unset( $object['ID'] );
 		}
 
-		// Update the attachment
+		// Update the attachment.
 		$attachment_id = $this->insert_attachment( $object, $cropped );
 
 		$url = wp_get_attachment_url( $attachment_id );
@@ -1180,7 +1180,7 @@ endif;
 			'dst_width'  => null,
 		);
 
-		// For flex, limit size of image displayed to 1500px unless theme says otherwise
+		// For flex, limit size of image displayed to 1500px unless theme says otherwise.
 		if ( $has_flex_width ) {
 			$max_width = 1500;
 		}
@@ -1318,7 +1318,7 @@ endif;
 		}
 
 		/** This filter is documented in wp-admin/includes/class-custom-image-header.php */
-		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication
+		$cropped = apply_filters( 'wp_create_file_in_uploads', $cropped, $attachment_id ); // For replication.
 
 		$object = $this->create_attachment_object( $cropped, $attachment_id );
 
@@ -1434,8 +1434,8 @@ endif;
 		// Get the default image if there is one.
 		$default = get_theme_support( 'custom-header', 'default-image' );
 
-		if ( ! $default ) { // If not,
+		if ( ! $default ) { // If not, easy peasy.
-			return $this->default_headers; // easy peasy.
+			return $this->default_headers;
 		}
 
 		$default             = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );

wp-admin/includes/class-file-upload-upgrader.php

@@ -56,7 +56,7 @@ class File_Upload_Upgrader {
 			wp_die( __( 'Please select a file' ) );
 		}
 
-		//Handle a newly uploaded file, Else assume it's already been uploaded
+		// Handle a newly uploaded file. Else, assume it's already been uploaded.
 		if ( ! empty( $_FILES ) ) {
 			$overrides = array(
 				'test_form' => false,
@@ -71,7 +71,7 @@ class File_Upload_Upgrader {
 			$this->filename = $_FILES[ $form ]['name'];
 			$this->package  = $file['file'];
 
-			// Construct the object array
+			// Construct the object array.
 			$object = array(
 				'post_title'     => $this->filename,
 				'post_content'   => $file['url'],

wp-admin/includes/class-language-pack-upgrader.php

@@ -192,7 +192,7 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 			$this->skin->feedback( 'starting_upgrade' );
 		}
 
-		// Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 & #WP29230
+		// Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 & #WP29230.
 		remove_all_filters( 'upgrader_pre_install' );
 		remove_all_filters( 'upgrader_clear_destination' );
 		remove_all_filters( 'upgrader_post_install' );
@@ -202,7 +202,7 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 
 		$this->skin->header();
 
-		// Connect to the Filesystem first.
+		// Connect to the filesystem first.
 		$res = $this->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
 		if ( ! $res ) {
 			$this->skin->footer();
@@ -369,7 +369,7 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 	public function get_name_for_update( $update ) {
 		switch ( $update->type ) {
 			case 'core':
-				return 'WordPress'; // Not translated
+				return 'WordPress'; // Not translated.
 
 			case 'theme':
 				$theme = wp_get_theme( $update->slug );

wp-admin/includes/class-plugin-upgrader.php

@@ -123,7 +123,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return $this->result;
 		}
 
-		// Force refresh of plugin update information
+		// Force refresh of plugin update information.
 		wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
 
 		return true;
@@ -163,12 +163,13 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return false;
 		}
 
-		// Get the URL to the zip file
+		// Get the URL to the zip file.
 		$r = $current->response[ $plugin ];
 
 		add_filter( 'upgrader_pre_install', array( $this, 'deactivate_plugin_before_upgrade' ), 10, 2 );
 		add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_plugin' ), 10, 4 );
-		//'source_selection' => array($this, 'source_selection'), //there's a trac ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
+		// There's a Trac ticket to move up the directory for zips which are made a bit differently, useful for non-.org plugins.
+		// 'source_selection' => array( $this, 'source_selection' ),
 		if ( $parsed_args['clear_update_cache'] ) {
 			// Clear cache so wp_update_plugins() knows about the new plugin.
 			add_action( 'upgrader_process_complete', 'wp_clean_plugins_cache', 9, 0 );
@@ -197,7 +198,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return $this->result;
 		}
 
-		// Force refresh of plugin update information
+		// Force refresh of plugin update information.
 		wp_clean_plugins_cache( $parsed_args['clear_update_cache'] );
 
 		return true;
@@ -234,7 +235,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 
 		$this->skin->header();
 
-		// Connect to the Filesystem first.
+		// Connect to the filesystem first.
 		$res = $this->fs_connect( array( WP_CONTENT_DIR, WP_PLUGIN_DIR ) );
 		if ( ! $res ) {
 			$this->skin->footer();
@@ -247,7 +248,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 		 * Only start maintenance mode if:
 		 * - running Multisite and there are one or more plugins specified, OR
 		 * - a plugin with an update available is currently active.
-		 * @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
+		 * @todo For multisite, maintenance mode should only kick in for individual sites if at all possible.
 		 */
 		$maintenance = ( is_multisite() && ! empty( $plugins ) );
 		foreach ( $plugins as $plugin ) {
@@ -294,11 +295,11 @@ class Plugin_Upgrader extends WP_Upgrader {
 
 			$results[ $plugin ] = $this->result;
 
-			// Prevent credentials auth screen from displaying multiple times
+			// Prevent credentials auth screen from displaying multiple times.
 			if ( false === $result ) {
 				break;
 			}
-		} //end foreach $plugins
+		} // End foreach $plugins.
 
 		$this->maintenance_mode( false );
 
@@ -353,7 +354,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return $source;
 		}
 
-		// Check the folder contains at least 1 valid plugin.
+		// Check that the folder contains at least 1 valid plugin.
 		$plugins_found = false;
 		$files         = glob( $working_directory . '*.php' );
 		if ( $files ) {
@@ -390,12 +391,14 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return false;
 		}
 
-		$plugin = get_plugins( '/' . $this->result['destination_name'] ); //Ensure to pass with leading slash
+		// Ensure to pass with leading slash.
+		$plugin = get_plugins( '/' . $this->result['destination_name'] );
 		if ( empty( $plugin ) ) {
 			return false;
 		}
 
-		$pluginfiles = array_keys( $plugin ); //Assume the requested plugin is the first in the list
+		// Assume the requested plugin is the first in the list.
+		$pluginfiles = array_keys( $plugin );
 
 		return $this->result['destination_name'] . '/' . $pluginfiles[0];
 	}
@@ -418,7 +421,7 @@ class Plugin_Upgrader extends WP_Upgrader {
 			return $return;
 		}
 
-		// When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it
+		// When in cron (background updates) don't deactivate the plugin, as we require a browser to reactivate it.
 		if ( wp_doing_cron() ) {
 			return $return;
 		}
@@ -472,7 +475,8 @@ class Plugin_Upgrader extends WP_Upgrader {
 		}
 
 		// If plugin is in its own directory, recursively delete the directory.
-		if ( strpos( $plugin, '/' ) && $this_plugin_dir != $plugins_dir ) { //base check on if plugin includes directory separator AND that it's not the root plugin folder
+		// Base check on if plugin includes directory separator AND that it's not the root plugin folder.
+		if ( strpos( $plugin, '/' ) && $this_plugin_dir != $plugins_dir ) {
 			$deleted = $wp_filesystem->delete( $this_plugin_dir, true );
 		} else {
 			$deleted = $wp_filesystem->delete( $plugins_dir . $plugin );

wp-admin/includes/class-theme-upgrader.php

@@ -94,7 +94,7 @@ class Theme_Upgrader extends WP_Upgrader {
 	 * @return bool
 	 */
 	public function check_parent_theme_filter( $install_result, $hook_extra, $child_result ) {
-		// Check to see if we need to install a parent theme
+		// Check to see if we need to install a parent theme.
 		$theme_info = $this->theme_info();
 
 		if ( ! $theme_info->parent() ) {
@@ -123,7 +123,7 @@ class Theme_Upgrader extends WP_Upgrader {
 
 		if ( ! $api || is_wp_error( $api ) ) {
 			$this->skin->feedback( 'parent_theme_not_found', $theme_info->get( 'Template' ) );
-			// Don't show activate or preview actions after installation
+			// Don't show activate or preview actions after installation.
 			add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
 			return $install_result;
 		}
@@ -132,15 +132,16 @@ class Theme_Upgrader extends WP_Upgrader {
 		$child_api             = $this->skin->api;
 		$child_success_message = $this->strings['process_success'];
 
-		// Override them
+		// Override them.
 		$this->skin->api = $api;
+
 		$this->strings['process_success_specific'] = $this->strings['parent_theme_install_success']; //, $api->name, $api->version );
 
 		$this->skin->feedback( 'parent_theme_prepare_install', $api->name, $api->version );
 
 		add_filter( 'install_theme_complete_actions', '__return_false', 999 ); // Don't show any actions after installing the theme.
 
-		// Install the parent theme
+		// Install the parent theme.
 		$parent_result = $this->run(
 			array(
 				'package'           => $api->download_link,
@@ -154,10 +155,10 @@ class Theme_Upgrader extends WP_Upgrader {
 			add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
 		}
 
-		// Start cleaning up after the parents installation
+		// Start cleaning up after the parent's installation.
 		remove_filter( 'install_theme_complete_actions', '__return_false', 999 );
 
-		// Reset child's result and data
+		// Reset child's result and data.
 		$this->result                     = $child_result;
 		$this->skin->api                  = $child_api;
 		$this->strings['process_success'] = $child_success_message;
@@ -236,7 +237,7 @@ class Theme_Upgrader extends WP_Upgrader {
 			return $this->result;
 		}
 
-		// Refresh the Theme Update information
+		// Refresh the Theme Update information.
 		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
 
 		return true;
@@ -349,7 +350,7 @@ class Theme_Upgrader extends WP_Upgrader {
 
 		$this->skin->header();
 
-		// Connect to the Filesystem first.
+		// Connect to the filesystem first.
 		$res = $this->fs_connect( array( WP_CONTENT_DIR ) );
 		if ( ! $res ) {
 			$this->skin->footer();
@@ -358,10 +359,12 @@ class Theme_Upgrader extends WP_Upgrader {
 
 		$this->skin->bulk_header();
 
-		// Only start maintenance mode if:
+		/*
-		// - running Multisite and there are one or more themes specified, OR
+		 * Only start maintenance mode if:
-		// - a theme with an update available is currently in use.
+		 * - running Multisite and there are one or more themes specified, OR
-		// @TODO: For multisite, maintenance mode should only kick in for individual sites if at all possible.
+		 * - a theme with an update available is currently in use.
+		 * @todo For multisite, maintenance mode should only kick in for individual sites if at all possible.
+		 */
 		$maintenance = ( is_multisite() && ! empty( $themes ) );
 		foreach ( $themes as $theme ) {
 			$maintenance = $maintenance || $theme == get_stylesheet() || $theme == get_template();
@@ -388,7 +391,7 @@ class Theme_Upgrader extends WP_Upgrader {
 				continue;
 			}
 
-			// Get the URL to the zip file
+			// Get the URL to the zip file.
 			$r = $current->response[ $theme ];
 
 			$result = $this->run(
@@ -406,15 +409,15 @@ class Theme_Upgrader extends WP_Upgrader {
 
 			$results[ $theme ] = $this->result;
 
-			// Prevent credentials auth screen from displaying multiple times
+			// Prevent credentials auth screen from displaying multiple times.
 			if ( false === $result ) {
 				break;
 			}
-		} //end foreach $plugins
+		} // End foreach $themes.
 
 		$this->maintenance_mode( false );
 
-		// Refresh the Theme Update information
+		// Refresh the Theme Update information.
 		wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
 
 		/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
@@ -462,13 +465,13 @@ class Theme_Upgrader extends WP_Upgrader {
 			return $source;
 		}
 
-		// Check the folder contains a valid theme
+		// Check that the folder contains a valid theme.
 		$working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit( WP_CONTENT_DIR ), $source );
 		if ( ! is_dir( $working_directory ) ) { // Sanity check, if the above fails, let's not prevent installation.
 			return $source;
 		}
 
-		// A proper archive should have a style.css file in the single subdirectory
+		// A proper archive should have a style.css file in the single subdirectory.
 		if ( ! file_exists( $working_directory . 'style.css' ) ) {
 			return new WP_Error(
 				'incompatible_archive_theme_no_style',
@@ -536,9 +539,10 @@ class Theme_Upgrader extends WP_Upgrader {
 
 		$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
 
-		if ( $theme != get_stylesheet() ) { //If not current
+		if ( $theme != get_stylesheet() ) { // If not current.
 			return $return;
 		}
+
 		// Change to maintenance mode now.
 		if ( ! $this->bulk ) {
 			$this->maintenance_mode( true );
@@ -566,7 +570,7 @@ class Theme_Upgrader extends WP_Upgrader {
 
 		$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
 
-		if ( $theme != get_stylesheet() ) { // If not current
+		if ( $theme != get_stylesheet() ) { // If not current.
 			return $return;
 		}
 
@@ -577,7 +581,7 @@ class Theme_Upgrader extends WP_Upgrader {
 			switch_theme( $stylesheet );
 		}
 
-		//Time to remove maintenance mode
+		// Time to remove maintenance mode.
 		if ( ! $this->bulk ) {
 			$this->maintenance_mode( false );
 		}

wp-admin/includes/class-walker-category-checklist.php

@@ -21,7 +21,7 @@ class Walker_Category_Checklist extends Walker {
 	public $db_fields = array(
 		'parent' => 'parent',
 		'id'     => 'term_id',
-	); //TODO: decouple this
+	); // TODO: Decouple this.
 
 	/**
 	 * Starts the list before the elements are added.

wp-admin/includes/class-walker-nav-menu-checklist.php

@@ -106,7 +106,7 @@ class Walker_Nav_Menu_Checklist extends Walker_Nav_Menu {
 
 		$output .= '</label>';
 
-		// Menu item hidden fields
+		// Menu item hidden fields.
 		$output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />';
 		$output .= '<input type="hidden" class="menu-item-object" name="menu-item[' . $possible_object_id . '][menu-item-object]" value="' . esc_attr( $item->object ) . '" />';
 		$output .= '<input type="hidden" class="menu-item-parent-id" name="menu-item[' . $possible_object_id . '][menu-item-parent-id]" value="' . esc_attr( $item->menu_item_parent ) . '" />';
@@ -119,4 +119,4 @@ class Walker_Nav_Menu_Checklist extends Walker_Nav_Menu {
 		$output .= '<input type="hidden" class="menu-item-xfn" name="menu-item[' . $possible_object_id . '][menu-item-xfn]" value="' . esc_attr( $item->xfn ) . '" />';
 	}
 
-} // Walker_Nav_Menu_Checklist
+}

wp-admin/includes/class-walker-nav-menu-edit.php

@@ -295,4 +295,4 @@ class Walker_Nav_Menu_Edit extends Walker_Nav_Menu {
 		$output .= ob_get_clean();
 	}
 
-} // Walker_Nav_Menu_Edit
+}

wp-admin/includes/class-wp-automatic-updater.php

@@ -141,7 +141,7 @@ class WP_Automatic_Updater {
 			return false;
 		}
 
-		// Only relax the filesystem checks when the update doesn't include new files
+		// Only relax the filesystem checks when the update doesn't include new files.
 		$allow_relaxed_file_ownership = false;
 		if ( 'core' == $type && isset( $item->new_files ) && ! $item->new_files ) {
 			$allow_relaxed_file_ownership = true;
@@ -283,7 +283,7 @@ class WP_Automatic_Updater {
 				break;
 			case 'plugin':
 				$upgrader = new Plugin_Upgrader( $skin );
-				$context  = WP_PLUGIN_DIR; // We don't support custom Plugin directories, or updates for WPMU_PLUGIN_DIR
+				$context  = WP_PLUGIN_DIR; // We don't support custom Plugin directories, or updates for WPMU_PLUGIN_DIR.
 				break;
 			case 'theme':
 				$upgrader = new Theme_Upgrader( $skin );
@@ -357,7 +357,7 @@ class WP_Automatic_Updater {
 				'pre_check_md5'                => false,
 				// Only available for core updates.
 				'attempt_rollback'             => true,
-				// Allow relaxed file ownership in some scenarios
+				// Allow relaxed file ownership in some scenarios.
 				'allow_relaxed_file_ownership' => $allow_relaxed_file_ownership,
 			)
 		);
@@ -409,51 +409,51 @@ class WP_Automatic_Updater {
 			return;
 		}
 
-		// Don't automatically run these thins, as we'll handle it ourselves
+		// Don't automatically run these things, as we'll handle it ourselves.
 		remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
 		remove_action( 'upgrader_process_complete', 'wp_version_check' );
 		remove_action( 'upgrader_process_complete', 'wp_update_plugins' );
 		remove_action( 'upgrader_process_complete', 'wp_update_themes' );
 
-		// Next, Plugins
+		// Next, plugins.
-		wp_update_plugins(); // Check for Plugin updates
+		wp_update_plugins(); // Check for plugin updates.
 		$plugin_updates = get_site_transient( 'update_plugins' );
 		if ( $plugin_updates && ! empty( $plugin_updates->response ) ) {
 			foreach ( $plugin_updates->response as $plugin ) {
 				$this->update( 'plugin', $plugin );
 			}
-			// Force refresh of plugin update information
+			// Force refresh of plugin update information.
 			wp_clean_plugins_cache();
 		}
 
-		// Next, those themes we all love
+		// Next, those themes we all love.
-		wp_update_themes();  // Check for Theme updates
+		wp_update_themes();  // Check for theme updates.
 		$theme_updates = get_site_transient( 'update_themes' );
 		if ( $theme_updates && ! empty( $theme_updates->response ) ) {
 			foreach ( $theme_updates->response as $theme ) {
 				$this->update( 'theme', (object) $theme );
 			}
-			// Force refresh of theme update information
+			// Force refresh of theme update information.
 			wp_clean_themes_cache();
 		}
 
-		// Next, Process any core update
+		// Next, process any core update.
-		wp_version_check(); // Check for Core updates
+		wp_version_check(); // Check for core updates.
 		$core_update = find_core_auto_update();
 
 		if ( $core_update ) {
 			$this->update( 'core', $core_update );
 		}
 
-		// Clean up, and check for any pending translations
+		// Clean up, and check for any pending translations.
-		// (Core_Upgrader checks for core updates)
+		// (Core_Upgrader checks for core updates.)
 		$theme_stats = array();
 		if ( isset( $this->update_results['theme'] ) ) {
 			foreach ( $this->update_results['theme'] as $upgrade ) {
 				$theme_stats[ $upgrade->item->theme ] = ( true === $upgrade->result );
 			}
 		}
-		wp_update_themes( $theme_stats );  // Check for Theme updates
+		wp_update_themes( $theme_stats ); // Check for theme updates.
 
 		$plugin_stats = array();
 		if ( isset( $this->update_results['plugin'] ) ) {
@@ -461,21 +461,21 @@ class WP_Automatic_Updater {
 				$plugin_stats[ $upgrade->item->plugin ] = ( true === $upgrade->result );
 			}
 		}
-		wp_update_plugins( $plugin_stats ); // Check for Plugin updates
+		wp_update_plugins( $plugin_stats ); // Check for plugin updates.
 
-		// Finally, Process any new translations
+		// Finally, process any new translations.
 		$language_updates = wp_get_translation_updates();
 		if ( $language_updates ) {
 			foreach ( $language_updates as $update ) {
 				$this->update( 'translation', $update );
 			}
 
-			// Clear existing caches
+			// Clear existing caches.
 			wp_clean_update_cache();
 
-			wp_version_check();  // check for Core updates
+			wp_version_check();  // Check for core updates.
-			wp_update_themes();  // Check for Theme updates
+			wp_update_themes();  // Check for theme updates.
-			wp_update_plugins(); // Check for Plugin updates
+			wp_update_plugins(); // Check for plugin updates.
 		}
 
 		// Send debugging email to admin for all development installations.
@@ -626,7 +626,7 @@ class WP_Automatic_Updater {
 		);
 
 		$next_user_core_update = get_preferred_from_update_core();
-		// If the update transient is empty, use the update we just performed
+		// If the update transient is empty, use the update we just performed.
 		if ( ! $next_user_core_update ) {
 			$next_user_core_update = $core_update;
 		}
@@ -860,7 +860,7 @@ class WP_Automatic_Updater {
 		/* translators: %s: Network home URL. */
 		$body[] = sprintf( __( 'WordPress site: %s' ), network_home_url( '/' ) );
 
-		// Core
+		// Core.
 		if ( isset( $this->update_results['core'] ) ) {
 			$result = $this->update_results['core'][0];
 			if ( $result->result && ! is_wp_error( $result->result ) ) {
@@ -874,7 +874,7 @@ class WP_Automatic_Updater {
 			$body[] = '';
 		}
 
-		// Plugins, Themes, Translations
+		// Plugins, Themes, Translations.
 		foreach ( array( 'plugin', 'theme', 'translation' ) as $type ) {
 			if ( ! isset( $this->update_results[ $type ] ) ) {
 				continue;
@@ -894,7 +894,7 @@ class WP_Automatic_Updater {
 				}
 			}
 			if ( $success_items != $this->update_results[ $type ] ) {
-				// Failed updates
+				// Failed updates.
 				$messages = array(
 					'plugin'      => __( 'The following plugins failed to update:' ),
 					'theme'       => __( 'The following themes failed to update:' ),

wp-admin/includes/class-wp-comments-list-table.php

@@ -100,7 +100,7 @@ class WP_Comments_List_Table extends WP_List_Table {
 		if ( isset( $_REQUEST['number'] ) ) {
 			$number = (int) $_REQUEST['number'];
 		} else {
-			$number = $comments_per_page + min( 8, $comments_per_page ); // Grab a few extra
+			$number = $comments_per_page + min( 8, $comments_per_page ); // Grab a few extra.
 		}
 
 		$page = $this->get_pagenum();
@@ -222,7 +222,7 @@ class WP_Comments_List_Table extends WP_List_Table {
 				'All <span class="count">(%s)</span>',
 				'All <span class="count">(%s)</span>',
 				'comments'
-			), // singular not used
+			), // Singular not used.
 
 			/* translators: %s: Number of comments. */
 			'mine'      => _nx_noop(
@@ -746,7 +746,7 @@ class WP_Comments_List_Table extends WP_List_Table {
 			++$i;
 			( ( ( 'approve' === $action || 'unapprove' === $action ) && 2 === $i ) || 1 === $i ) ? $sep = '' : $sep = ' | ';
 
-			// Reply and quickedit need a hide-if-no-js span when not added with ajax
+			// Reply and quickedit need a hide-if-no-js span when not added with ajax.
 			if ( ( 'reply' === $action || 'quickedit' === $action ) && ! wp_doing_ajax() ) {
 				$action .= ' hide-if-no-js';
 			} elseif ( ( $action === 'untrash' && $the_comment_status === 'trash' ) || ( $action === 'unspam' && $the_comment_status === 'spam' ) ) {

wp-admin/includes/class-wp-community-events.php

@@ -92,7 +92,7 @@ class WP_Community_Events {
 			return $cached_events;
 		}
 
-		// include an unmodified $wp_version
+		// Include an unmodified $wp_version.
 		include( ABSPATH . WPINC . '/version.php' );
 
 		$api_url                    = 'http://api.wordpress.org/events/1.0/';

wp-admin/includes/class-wp-debug-data.php

@@ -580,7 +580,7 @@ class WP_Debug_Data {
 
 		if ( function_exists( 'phpversion' ) ) {
 			$php_version_debug = phpversion();
-			// Whether PHP supports 64bit
+			// Whether PHP supports 64-bit.
 			$php64bit = ( PHP_INT_SIZE * 8 === 64 );
 
 			$php_version = sprintf(
@@ -677,7 +677,7 @@ class WP_Debug_Data {
 			);
 		}
 
-		// SUHOSIN
+		// SUHOSIN.
 		$suhosin_loaded = ( extension_loaded( 'suhosin' ) || ( defined( 'SUHOSIN_PATCH' ) && constant( 'SUHOSIN_PATCH' ) ) );
 
 		$info['wp-server']['fields']['suhosin'] = array(
@@ -686,7 +686,7 @@ class WP_Debug_Data {
 			'debug' => $suhosin_loaded,
 		);
 
-		// Imagick
+		// Imagick.
 		$imagick_loaded = extension_loaded( 'imagick' );
 
 		$info['wp-server']['fields']['imagick_availability'] = array(
@@ -1012,7 +1012,7 @@ class WP_Debug_Data {
 			$theme_version = $theme->version;
 			$theme_author  = $theme->author;
 
-			// Sanitize
+			// Sanitize.
 			$theme_author = wp_kses( $theme_author, array() );
 
 			$theme_version_string       = __( 'No version or author information is available.' );
@@ -1054,7 +1054,7 @@ class WP_Debug_Data {
 			);
 		}
 
-		// Add more filesystem checks
+		// Add more filesystem checks.
 		if ( defined( 'WPMU_PLUGIN_DIR' ) && is_dir( WPMU_PLUGIN_DIR ) ) {
 			$is_writable_wpmu_plugin_dir = wp_is_writable( WPMU_PLUGIN_DIR );
 

wp-admin/includes/class-wp-filesystem-base.php

@@ -55,7 +55,8 @@ class WP_Filesystem_Base {
 	 */
 	public function abspath() {
 		$folder = $this->find_folder( ABSPATH );
-		// Perhaps the FTP folder is rooted at the WordPress install, Check for wp-includes folder in root, Could have some false positives, but rare.
+		// Perhaps the FTP folder is rooted at the WordPress install.
+		// Check for wp-includes folder in root. Could have some false positives, but rare.
 		if ( ! $folder && $this->is_dir( '/' . WPINC ) ) {
 			$folder = '/';
 		}
@@ -96,7 +97,7 @@ class WP_Filesystem_Base {
 	public function wp_themes_dir( $theme = false ) {
 		$theme_root = get_theme_root( $theme );
 
-		// Account for relative theme roots
+		// Account for relative theme roots.
 		if ( '/themes' == $theme_root || ! is_dir( $theme_root ) ) {
 			$theme_root = WP_CONTENT_DIR . $theme_root;
 		}
@@ -182,7 +183,7 @@ class WP_Filesystem_Base {
 				'FTP_LANG_DIR'    => WP_LANG_DIR,
 			);
 
-			// Direct matches ( folder = CONSTANT/ )
+			// Direct matches ( folder = CONSTANT/ ).
 			foreach ( $constant_overrides as $constant => $dir ) {
 				if ( ! defined( $constant ) ) {
 					continue;
@@ -192,12 +193,12 @@ class WP_Filesystem_Base {
 				}
 			}
 
-			// Prefix Matches ( folder = CONSTANT/subdir )
+			// Prefix matches ( folder = CONSTANT/subdir ),
 			foreach ( $constant_overrides as $constant => $dir ) {
 				if ( ! defined( $constant ) ) {
 					continue;
 				}
-				if ( 0 === stripos( $folder, $dir ) ) { // $folder starts with $dir
+				if ( 0 === stripos( $folder, $dir ) ) { // $folder starts with $dir.
 					$potential_folder = preg_replace( '#^' . preg_quote( $dir, '#' ) . '/#i', trailingslashit( constant( $constant ) ), $folder );
 					$potential_folder = trailingslashit( $potential_folder );
 
@@ -208,12 +209,12 @@ class WP_Filesystem_Base {
 				}
 			}
 		} elseif ( 'direct' == $this->method ) {
-			$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation
+			$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation.
 			return trailingslashit( $folder );
 		}
 
-		$folder = preg_replace( '|^([a-z]{1}):|i', '', $folder ); // Strip out windows drive letter if it's there.
+		$folder = preg_replace( '|^([a-z]{1}):|i', '', $folder ); // Strip out Windows drive letter if it's there.
-		$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation
+		$folder = str_replace( '\\', '/', $folder ); // Windows path sanitisation.
 
 		if ( isset( $this->cache[ $folder ] ) ) {
 			return $this->cache[ $folder ];
@@ -240,7 +241,7 @@ class WP_Filesystem_Base {
 	 *
 	 * @param string $folder The folder to locate.
 	 * @param string $base   The folder to start searching from.
-	 * @param bool   $loop   If the function has recursed, Internal use only.
+	 * @param bool   $loop   If the function has recursed. Internal use only.
 	 * @return string|false The location of the remote path, false to cease looping.
 	 */
 	public function search_for_folder( $folder, $base = '.', $loop = false ) {
@@ -303,7 +304,7 @@ class WP_Filesystem_Base {
 		}
 
 		// Prevent this function from looping again.
-		// No need to proceed if we've just searched in /
+		// No need to proceed if we've just searched in `/`.
 		if ( $loop || '/' == $base ) {
 			return false;
 		}
@@ -328,39 +329,39 @@ class WP_Filesystem_Base {
 	 */
 	public function gethchmod( $file ) {
 		$perms = intval( $this->getchmod( $file ), 8 );
-		if ( ( $perms & 0xC000 ) == 0xC000 ) { // Socket
+		if ( ( $perms & 0xC000 ) == 0xC000 ) { // Socket.
 			$info = 's';
-		} elseif ( ( $perms & 0xA000 ) == 0xA000 ) { // Symbolic Link
+		} elseif ( ( $perms & 0xA000 ) == 0xA000 ) { // Symbolic Link.
 			$info = 'l';
-		} elseif ( ( $perms & 0x8000 ) == 0x8000 ) { // Regular
+		} elseif ( ( $perms & 0x8000 ) == 0x8000 ) { // Regular.
 			$info = '-';
-		} elseif ( ( $perms & 0x6000 ) == 0x6000 ) { // Block special
+		} elseif ( ( $perms & 0x6000 ) == 0x6000 ) { // Block special.
 			$info = 'b';
-		} elseif ( ( $perms & 0x4000 ) == 0x4000 ) { // Directory
+		} elseif ( ( $perms & 0x4000 ) == 0x4000 ) { // Directory.
 			$info = 'd';
-		} elseif ( ( $perms & 0x2000 ) == 0x2000 ) { // Character special
+		} elseif ( ( $perms & 0x2000 ) == 0x2000 ) { // Character special.
 			$info = 'c';
-		} elseif ( ( $perms & 0x1000 ) == 0x1000 ) { // FIFO pipe
+		} elseif ( ( $perms & 0x1000 ) == 0x1000 ) { // FIFO pipe.
 			$info = 'p';
-		} else { // Unknown
+		} else { // Unknown.
 			$info = 'u';
 		}
 
-		// Owner
+		// Owner.
 		$info .= ( ( $perms & 0x0100 ) ? 'r' : '-' );
 		$info .= ( ( $perms & 0x0080 ) ? 'w' : '-' );
 		$info .= ( ( $perms & 0x0040 ) ?
 					( ( $perms & 0x0800 ) ? 's' : 'x' ) :
 					( ( $perms & 0x0800 ) ? 'S' : '-' ) );
 
-		// Group
+		// Group.
 		$info .= ( ( $perms & 0x0020 ) ? 'r' : '-' );
 		$info .= ( ( $perms & 0x0010 ) ? 'w' : '-' );
 		$info .= ( ( $perms & 0x0008 ) ?
 					( ( $perms & 0x0400 ) ? 's' : 'x' ) :
 					( ( $perms & 0x0400 ) ? 'S' : '-' ) );
 
-		// World
+		// World.
 		$info .= ( ( $perms & 0x0004 ) ? 'r' : '-' );
 		$info .= ( ( $perms & 0x0002 ) ? 'w' : '-' );
 		$info .= ( ( $perms & 0x0001 ) ?
@@ -827,4 +828,4 @@ class WP_Filesystem_Base {
 		return false;
 	}
 
-} // WP_Filesystem_Base
+}

wp-admin/includes/class-wp-filesystem-direct.php

@@ -131,7 +131,7 @@ class WP_Filesystem_Direct extends WP_Filesystem_Base {
 		if ( ! $this->is_dir( $file ) ) {
 			return chgrp( $file, $group );
 		}
-		// Is a directory, and we want recursive
+		// Is a directory, and we want recursive.
 		$file     = trailingslashit( $file );
 		$filelist = $this->dirlist( $file );
 		foreach ( $filelist as $filename ) {
@@ -167,7 +167,7 @@ class WP_Filesystem_Direct extends WP_Filesystem_Base {
 		if ( ! $recursive || ! $this->is_dir( $file ) ) {
 			return chmod( $file, $mode );
 		}
-		// Is a directory, and we want recursive
+		// Is a directory, and we want recursive.
 		$file     = trailingslashit( $file );
 		$filelist = $this->dirlist( $file );
 		foreach ( (array) $filelist as $filename => $filemeta ) {
@@ -198,7 +198,7 @@ class WP_Filesystem_Direct extends WP_Filesystem_Base {
 		if ( ! $this->is_dir( $file ) ) {
 			return chown( $file, $owner );
 		}
-		// Is a directory, and we want recursive
+		// Is a directory, and we want recursive.
 		$filelist = $this->dirlist( $file );
 		foreach ( $filelist as $filename ) {
 			$this->chown( $file . '/' . $filename, $owner, $recursive );
@@ -327,10 +327,11 @@ class WP_Filesystem_Direct extends WP_Filesystem_Base {
 	 * @return bool True on success, false on failure.
 	 */
 	public function delete( $file, $recursive = false, $type = false ) {
-		if ( empty( $file ) ) { // Some filesystems report this as /, which can cause non-expected recursive deletion of all files in the filesystem.
+		if ( empty( $file ) ) {
+			// Some filesystems report this as /, which can cause non-expected recursive deletion of all files in the filesystem.
 			return false;
 		}
-		$file = str_replace( '\\', '/', $file ); // for win32, occasional problems deleting files otherwise
+		$file = str_replace( '\\', '/', $file ); // For Win32, occasional problems deleting files otherwise.
 
 		if ( 'f' == $type || $this->is_file( $file ) ) {
 			return @unlink( $file );
@@ -339,7 +340,7 @@ class WP_Filesystem_Direct extends WP_Filesystem_Base {
 			return @rmdir( $file );
 		}
 
-		// At this point it's a folder, and we're in recursive mode
+		// At this point it's a folder, and we're in recursive mode.
 		$file     = trailingslashit( $file );
 		$filelist = $this->dirlist( $file, true );
 

wp-admin/includes/class-wp-filesystem-ftpext.php

@@ -38,8 +38,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			return;
 		}
 
-		// This Class uses the timeout on a per-connection basis, Others use it on a per-action basis.
+		// This class uses the timeout on a per-connection basis, others use it on a per-action basis.
-
 		if ( ! defined( 'FS_TIMEOUT' ) ) {
 			define( 'FS_TIMEOUT', 240 );
 		}
@@ -113,7 +112,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			return false;
 		}
 
-		// Set the Connection to use Passive FTP
+		// Set the connection to use Passive FTP.
 		ftp_pasv( $this->link, true );
 		if ( @ftp_get_option( $this->link, FTP_TIMEOUT_SEC ) < FS_TIMEOUT ) {
 			@ftp_set_option( $this->link, FTP_TIMEOUT_SEC, FS_TIMEOUT );
@@ -146,7 +145,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			return false;
 		}
 
-		fseek( $temp, 0 ); // Skip back to the start of the file being written to
+		fseek( $temp, 0 ); // Skip back to the start of the file being written to.
 		$contents = '';
 
 		while ( ! feof( $temp ) ) {
@@ -203,7 +202,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			return false;
 		}
 
-		fseek( $temp, 0 ); // Skip back to the start of the file being written to
+		fseek( $temp, 0 ); // Skip back to the start of the file being written to.
 
 		$ret = ftp_fput( $this->link, $file, $temp, FTP_BINARY );
 
@@ -273,7 +272,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			}
 		}
 
-		// chmod the file or directory
+		// chmod the file or directory.
 		if ( ! function_exists( 'ftp_chmod' ) ) {
 			return (bool) ftp_site( $this->link, sprintf( 'CHMOD %o %s', $mode, $file ) );
 		}
@@ -405,7 +404,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			return true; // File is an empty directory.
 		}
 
-		return ! empty( $list ); //empty list = no file, so invert.
+		return ! empty( $list ); // Empty list = no file, so invert.
 	}
 
 	/**
@@ -573,7 +572,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			if ( $lucifer[3] < 70 ) {
 				$lucifer[3] += 2000;
 			} else {
-				$lucifer[3] += 1900; // 4digit year fix
+				$lucifer[3] += 1900; // 4-digit year fix.
 			}
 			$b['isdir'] = ( $lucifer[7] == '<DIR>' );
 			if ( $b['isdir'] ) {
@@ -637,7 +636,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 			}
 		}
 
-		// Replace symlinks formatted as "source -> target" with just the source name
+		// Replace symlinks formatted as "source -> target" with just the source name.
 		if ( isset( $b['islink'] ) && $b['islink'] ) {
 			$b['name'] = preg_replace( '/(\s*->\s*.*)$/', '', $b['name'] );
 		}

wp-admin/includes/class-wp-filesystem-ftpsockets.php

@@ -150,12 +150,12 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 
 			reset_mbstring_encoding();
 
-			return ''; // Blank document, File does exist, It's just blank.
+			return ''; // Blank document. File does exist, it's just blank.
 		}
 
 		reset_mbstring_encoding();
 
-		fseek( $temphandle, 0 ); // Skip back to the start of the file being written to
+		fseek( $temphandle, 0 ); // Skip back to the start of the file being written to.
 		$contents = '';
 
 		while ( ! feof( $temphandle ) ) {
@@ -198,7 +198,7 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 			return false;
 		}
 
-		// The FTP class uses string functions internally during file download/upload
+		// The FTP class uses string functions internally during file download/upload.
 		mbstring_binary_safe_encoding();
 
 		$bytes_written = fwrite( $temphandle, $contents );
@@ -211,7 +211,7 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 			return false;
 		}
 
-		fseek( $temphandle, 0 ); // Skip back to the start of the file being written to
+		fseek( $temphandle, 0 ); // Skip back to the start of the file being written to.
 
 		$ret = $this->ftp->fput( $file, $temphandle );
 
@@ -283,7 +283,7 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 			}
 		}
 
-		// chmod the file or directory
+		// chmod the file or directory.
 		return $this->ftp->chmod( $file, $mode );
 	}
 
@@ -408,7 +408,7 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 			return true; // File is an empty directory.
 		}
 
-		return ! empty( $list ); //empty list = no file, so invert.
+		return ! empty( $list ); // Empty list = no file, so invert.
 		// Return $this->ftp->is_exists($file); has issues with ABOR+426 responses on the ncFTPd server.
 	}
 
@@ -635,12 +635,12 @@ class WP_Filesystem_ftpsockets extends WP_Filesystem_Base {
 				}
 			}
 
-			// Replace symlinks formatted as "source -> target" with just the source name
+			// Replace symlinks formatted as "source -> target" with just the source name.
 			if ( $struc['islink'] ) {
 				$struc['name'] = preg_replace( '/(\s*->\s*.*)$/', '', $struc['name'] );
 			}
 
-			// Add the Octal representation of the file permissions
+			// Add the octal representation of the file permissions.
 			$struc['permsn'] = $this->getnumchmodfromh( $struc['perms'] );
 
 			$ret[ $struc['name'] ] = $struc;

wp-admin/includes/class-wp-filesystem-ssh2.php

@@ -582,7 +582,7 @@ class WP_Filesystem_SSH2 extends WP_Filesystem_Base {
 	 * @return bool Whether $file is writable.
 	 */
 	public function is_writable( $file ) {
-		// PHP will base it's writable checks on system_user === file_owner, not ssh_user === file_owner
+		// PHP will base its writable checks on system_user === file_owner, not ssh_user === file_owner.
 		return true;
 	}
 

wp-admin/includes/class-wp-importer.php

@@ -25,18 +25,18 @@ class WP_Importer {
 		$limit  = 100;
 		$offset = 0;
 
-		// Grab all posts in chunks
+		// Grab all posts in chunks.
 		do {
 			$meta_key = $importer_name . '_' . $bid . '_permalink';
 			$sql      = $wpdb->prepare( "SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = %s LIMIT %d,%d", $meta_key, $offset, $limit );
 			$results  = $wpdb->get_results( $sql );
 
-			// Increment offset
+			// Increment offset.
 			$offset = ( $limit + $offset );
 
 			if ( ! empty( $results ) ) {
 				foreach ( $results as $r ) {
-					// Set permalinks into array
+					// Set permalinks into array.
 					$hashtable[ $r->meta_value ] = intval( $r->post_id );
 				}
 			}
@@ -62,7 +62,7 @@ class WP_Importer {
 
 		$count = 0;
 
-		// Get count of permalinks
+		// Get count of permalinks.
 		$meta_key = $importer_name . '_' . $bid . '_permalink';
 		$sql      = $wpdb->prepare( "SELECT COUNT( post_id ) AS cnt FROM $wpdb->postmeta WHERE meta_key = %s", $meta_key );
 
@@ -94,21 +94,21 @@ class WP_Importer {
 		$limit  = 100;
 		$offset = 0;
 
-		// Grab all comments in chunks
+		// Grab all comments in chunks.
 		do {
 			$sql     = $wpdb->prepare( "SELECT comment_ID, comment_agent FROM $wpdb->comments LIMIT %d,%d", $offset, $limit );
 			$results = $wpdb->get_results( $sql );
 
-			// Increment offset
+			// Increment offset.
 			$offset = ( $limit + $offset );
 
 			if ( ! empty( $results ) ) {
 				foreach ( $results as $r ) {
-					// Explode comment_agent key
+					// Explode comment_agent key.
 					list ( $ca_bid, $source_comment_id ) = explode( '-', $r->comment_agent );
 					$source_comment_id                   = intval( $source_comment_id );
 
-					// Check if this comment came from this blog
+					// Check if this comment came from this blog.
 					if ( $bid == $ca_bid ) {
 						$hashtable[ $source_comment_id ] = intval( $r->comment_ID );
 					}
@@ -203,7 +203,7 @@ class WP_Importer {
 	 * @return array
 	 */
 	public function get_page( $url, $username = '', $password = '', $head = false ) {
-		// Increase the timeout
+		// Increase the timeout.
 		add_filter( 'http_request_timeout', array( $this, 'bump_request_timeout' ) );
 
 		$headers = array();
@@ -267,7 +267,7 @@ class WP_Importer {
 		global $wpdb, $wp_actions;
 		// Or define( 'WP_IMPORTING', true );
 		$wpdb->queries = array();
-		// Reset $wp_actions to keep it from growing out of control
+		// Reset $wp_actions to keep it from growing out of control.
 		$wp_actions = array();
 	}
 }
@@ -317,15 +317,15 @@ function get_cli_args( $param, $required = false ) {
 		}
 	}
 
-	// Check array for specified param
+	// Check array for specified param.
 	if ( isset( $out[ $param ] ) ) {
-		// Set return value
+		// Set return value.
 		$return = $out[ $param ];
 	}
 
-	// Check for missing required param
+	// Check for missing required param.
 	if ( ! isset( $out[ $param ] ) && $required ) {
-		// Display message and exit
+		// Display message and exit.
 		echo "\"$param\" parameter is required but was not specified\n";
 		exit();
 	}

wp-admin/includes/class-wp-internal-pointers.php

@@ -51,7 +51,7 @@ final class WP_Internal_Pointers {
 			// None currently.
 		);
 
-		// Check if screen related pointer is registered
+		// Check if screen related pointer is registered.
 		if ( empty( $registered_pointers[ $hook_suffix ] ) ) {
 			return;
 		}
@@ -75,7 +75,7 @@ final class WP_Internal_Pointers {
 			// None currently.
 		);
 
-		// Get dismissed pointers
+		// Get dismissed pointers.
 		$dismissed = explode( ',', (string) get_user_meta( get_current_user_id(), 'dismissed_wp_pointers', true ) );
 
 		$got_pointers = false;
@@ -88,7 +88,7 @@ final class WP_Internal_Pointers {
 				}
 			}
 
-			// Bind pointer print function
+			// Bind pointer print function.
 			add_action( 'admin_print_footer_scripts', array( 'WP_Internal_Pointers', 'pointer_' . $pointer ) );
 			$got_pointers = true;
 		}
@@ -97,7 +97,7 @@ final class WP_Internal_Pointers {
 			return;
 		}
 
-		// Add pointers script and style to queue
+		// Add pointers script and style to queue.
 		wp_enqueue_style( 'wp-pointer' );
 		wp_enqueue_script( 'wp-pointer' );
 	}

wp-admin/includes/class-wp-list-table.php

@@ -1004,8 +1004,8 @@ class WP_List_Table {
 		$columns = get_column_headers( $this->screen );
 		$default = $this->get_default_primary_column_name();
 
-		// If the primary column doesn't exist fall back to the
+		// If the primary column doesn't exist,
-		// first non-checkbox column.
+		// fall back to the first non-checkbox column.
 		if ( ! isset( $columns[ $default ] ) ) {
 			$default = WP_List_Table::get_default_primary_column_name();
 		}
@@ -1035,7 +1035,7 @@ class WP_List_Table {
 	 * @return array
 	 */
 	protected function get_column_info() {
-		// $_column_headers is already set / cached
+		// $_column_headers is already set / cached.
 		if ( isset( $this->_column_headers ) && is_array( $this->_column_headers ) ) {
 			// Back-compat for list tables that have been manually setting $_column_headers for horse reasons.
 			// In 4.3, we added a fourth argument for primary column.

wp-admin/includes/class-wp-ms-sites-list-table.php

@@ -114,7 +114,7 @@ class WP_MS_Sites_List_Table extends WP_List_Table {
 					preg_match( '/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.?$/', $s ) ||
 					preg_match( '/^[0-9]{1,3}\.[0-9]{1,3}\.?$/', $s ) ||
 					preg_match( '/^[0-9]{1,3}\.$/', $s ) ) {
-			// IPv4 address
+			// IPv4 address.
 			$sql          = $wpdb->prepare( "SELECT blog_id FROM {$wpdb->registration_log} WHERE {$wpdb->registration_log}.IP LIKE %s", $wpdb->esc_like( $s ) . ( ! empty( $wild ) ? '%' : '' ) );
 			$reg_blog_ids = $wpdb->get_col( $sql );
 
@@ -133,7 +133,7 @@ class WP_MS_Sites_List_Table extends WP_List_Table {
 
 		$order_by = isset( $_REQUEST['orderby'] ) ? $_REQUEST['orderby'] : '';
 		if ( 'registered' === $order_by ) {
-			// registered is a valid field name.
+			// 'registered' is a valid field name.
 		} elseif ( 'lastupdated' === $order_by ) {
 			$order_by = 'last_updated';
 		} elseif ( 'blogname' === $order_by ) {

wp-admin/includes/class-wp-ms-themes-list-table.php

@@ -62,7 +62,7 @@ class WP_MS_Themes_List_Table extends WP_List_Table {
 	 * @return array
 	 */
 	protected function get_table_classes() {
-		// todo: remove and add CSS for .themes
+		// @todo Remove and add CSS for .themes.
 		return array( 'widefat', 'plugins' );
 	}
 

wp-admin/includes/class-wp-ms-users-list-table.php

@@ -93,7 +93,7 @@ class WP_MS_Users_List_Table extends WP_List_Table {
 		/** This filter is documented in wp-admin/includes/class-wp-users-list-table.php */
 		$args = apply_filters( 'users_list_table_query_args', $args );
 
-		// Query the user IDs for this page
+		// Query the user IDs for this page.
 		$wp_user_search = new WP_User_Query( $args );
 
 		$this->items = $wp_user_search->get_results();

wp-admin/includes/class-wp-plugin-install-list-table.php

@@ -95,7 +95,7 @@ class WP_Plugin_Install_List_Table extends WP_List_Table {
 
 		$per_page = 36;
 
-		// These are the tabs which are shown on the page
+		// These are the tabs which are shown on the page.
 		$tabs = array();
 
 		if ( 'search' === $tab ) {
@@ -471,7 +471,7 @@ class WP_Plugin_Install_List_Table extends WP_List_Table {
 				$plugin = (array) $plugin;
 			}
 
-			// Display the group heading if there is one
+			// Display the group heading if there is one.
 			if ( isset( $plugin['group'] ) && $plugin['group'] != $group ) {
 				if ( isset( $this->groups[ $plugin['group'] ] ) ) {
 					$group_name = $this->groups[ $plugin['group'] ];
@@ -482,13 +482,13 @@ class WP_Plugin_Install_List_Table extends WP_List_Table {
 					$group_name = $plugin['group'];
 				}
 
-				// Starting a new group, close off the divs of the last one
+				// Starting a new group, close off the divs of the last one.
 				if ( ! empty( $group ) ) {
 					echo '</div></div>';
 				}
 
 				echo '<div class="plugin-group"><h3>' . esc_html( $group_name ) . '</h3>';
-				// needs an extra wrapping div for nth-child selectors to work
+				// Needs an extra wrapping div for nth-child selectors to work.
 				echo '<div class="plugin-items">';
 
 				$group = $plugin['group'];
@@ -768,7 +768,7 @@ class WP_Plugin_Install_List_Table extends WP_List_Table {
 			<?php
 		}
 
-		// Close off the group divs of the last one
+		// Close off the group divs of the last one.
 		if ( ! empty( $group ) ) {
 			echo '</div></div>';
 		}

wp-admin/includes/class-wp-plugins-list-table.php

@@ -186,40 +186,40 @@ class WP_Plugins_List_Table extends WP_List_Table {
 			if ( isset( $plugin_info->response[ $plugin_file ] ) ) {
 				$plugin_data                    = array_merge( (array) $plugin_info->response[ $plugin_file ], $plugin_data );
 				$plugins['all'][ $plugin_file ] = $plugin_data;
-				// Make sure that $plugins['upgrade'] also receives the extra info since it is used on ?plugin_status=upgrade
+				// Make sure that $plugins['upgrade'] also receives the extra info since it is used on ?plugin_status=upgrade.
 				if ( isset( $plugins['upgrade'][ $plugin_file ] ) ) {
 					$plugins['upgrade'][ $plugin_file ] = $plugin_data;
 				}
 			} elseif ( isset( $plugin_info->no_update[ $plugin_file ] ) ) {
 				$plugin_data                    = array_merge( (array) $plugin_info->no_update[ $plugin_file ], $plugin_data );
 				$plugins['all'][ $plugin_file ] = $plugin_data;
-				// Make sure that $plugins['upgrade'] also receives the extra info since it is used on ?plugin_status=upgrade
+				// Make sure that $plugins['upgrade'] also receives the extra info since it is used on ?plugin_status=upgrade.
 				if ( isset( $plugins['upgrade'][ $plugin_file ] ) ) {
 					$plugins['upgrade'][ $plugin_file ] = $plugin_data;
 				}
 			}
 
-			// Filter into individual sections
+			// Filter into individual sections.
 			if ( is_multisite() && ! $screen->in_admin( 'network' ) && is_network_only_plugin( $plugin_file ) && ! is_plugin_active( $plugin_file ) ) {
 				if ( $show_network_active ) {
-					// On the non-network screen, show inactive network-only plugins if allowed
+					// On the non-network screen, show inactive network-only plugins if allowed.
 					$plugins['inactive'][ $plugin_file ] = $plugin_data;
 				} else {
-					// On the non-network screen, filter out network-only plugins as long as they're not individually active
+					// On the non-network screen, filter out network-only plugins as long as they're not individually active.
 					unset( $plugins['all'][ $plugin_file ] );
 				}
 			} elseif ( ! $screen->in_admin( 'network' ) && is_plugin_active_for_network( $plugin_file ) ) {
 				if ( $show_network_active ) {
-					// On the non-network screen, show network-active plugins if allowed
+					// On the non-network screen, show network-active plugins if allowed.
 					$plugins['active'][ $plugin_file ] = $plugin_data;
 				} else {
-					// On the non-network screen, filter out network-active plugins
+					// On the non-network screen, filter out network-active plugins.
 					unset( $plugins['all'][ $plugin_file ] );
 				}
 			} elseif ( ( ! $screen->in_admin( 'network' ) && is_plugin_active( $plugin_file ) )
 				|| ( $screen->in_admin( 'network' ) && is_plugin_active_for_network( $plugin_file ) ) ) {
-				// On the non-network screen, populate the active list with plugins that are individually activated
+				// On the non-network screen, populate the active list with plugins that are individually activated.
-				// On the network-admin screen, populate the active list with plugins that are network activated
+				// On the network admin screen, populate the active list with plugins that are network-activated.
 				$plugins['active'][ $plugin_file ] = $plugin_data;
 
 				if ( ! $screen->in_admin( 'network' ) && is_plugin_paused( $plugin_file ) ) {
@@ -227,10 +227,10 @@ class WP_Plugins_List_Table extends WP_List_Table {
 				}
 			} else {
 				if ( isset( $recently_activated[ $plugin_file ] ) ) {
-					// Populate the recently activated list with plugins that have been recently activated
+					// Populate the recently activated list with plugins that have been recently activated.
 					$plugins['recently_activated'][ $plugin_file ] = $plugin_data;
 				}
-				// Populate the inactive list with plugins that aren't activated
+				// Populate the inactive list with plugins that aren't activated.
 				$plugins['inactive'][ $plugin_file ] = $plugin_data;
 			}
 		}
@@ -251,7 +251,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 
 		$this->items = array();
 		foreach ( $plugins[ $status ] as $plugin_file => $plugin_data ) {
-			// Translate, Don't Apply Markup, Sanitize HTML
+			// Translate, don't apply markup, sanitize HTML.
 			$this->items[ $plugin_file ] = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, false, true );
 		}
 
@@ -631,7 +631,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 			'delete'     => '',
 		);
 
-		// Do not restrict by default
+		// Do not restrict by default.
 		$restrict_network_active = false;
 		$restrict_network_only   = false;
 
@@ -643,10 +643,10 @@ class WP_Plugins_List_Table extends WP_List_Table {
 			if ( $plugin_file != $plugin_data['Name'] ) {
 				$plugin_name .= '<br/>' . $plugin_data['Name'];
 			}
-			if ( true === ( $dropins[ $plugin_file ][1] ) ) { // Doesn't require a constant
+			if ( true === ( $dropins[ $plugin_file ][1] ) ) { // Doesn't require a constant.
 				$is_active   = true;
 				$description = '<p><strong>' . $dropins[ $plugin_file ][0] . '</strong></p>';
-			} elseif ( defined( $dropins[ $plugin_file ][1] ) && constant( $dropins[ $plugin_file ][1] ) ) { // Constant is true
+			} elseif ( defined( $dropins[ $plugin_file ][1] ) && constant( $dropins[ $plugin_file ][1] ) ) { // Constant is true.
 				$is_active   = true;
 				$description = '<p><strong>' . $dropins[ $plugin_file ][0] . '</strong></p>';
 			} else {
@@ -750,9 +750,9 @@ class WP_Plugins_List_Table extends WP_List_Table {
 							__( 'Delete' )
 						);
 					}
-				} // end if $is_active
+				} // End if $is_active.
-			} // end if $screen->in_admin( 'network' )
+			} // End if $screen->in_admin( 'network' ).
-		} // end if $context
+		} // End if $context.
 
 		$actions = array_filter( $actions );
 
@@ -906,7 +906,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 						$plugin_meta[] = sprintf( __( 'By %s' ), $author );
 					}
 
-					// Details link using API info, if available
+					// Details link using API info, if available.
 					if ( isset( $plugin_data['slug'] ) && current_user_can( 'install_plugins' ) ) {
 						$plugin_meta[] = sprintf(
 							'<a href="%s" class="thickbox open-plugin-details-modal" aria-label="%s" data-title="%s">%s</a>',

wp-admin/includes/class-wp-posts-list-table.php

@@ -143,7 +143,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 	public function prepare_items() {
 		global $avail_post_stati, $wp_query, $per_page, $mode;
 
-		// is going to call wp()
+		// Is going to call wp().
 		$avail_post_stati = wp_edit_posts_query();
 
 		$this->set_hierarchical_display( is_post_type_hierarchical( $this->screen->post_type ) && 'menu_order title' === $wp_query->query['orderby'] );
@@ -877,7 +877,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 				$my_parents = array();
 				$my_parent  = $page->post_parent;
 				while ( $my_parent ) {
-					// Get the ID from the list or the attribute if my_parent is an object
+					// Get the ID from the list or the attribute if my_parent is an object.
 					$parent_id = $my_parent;
 					if ( is_object( $my_parent ) ) {
 						$parent_id = $my_parent->ID;
@@ -906,7 +906,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 			$this->_page_rows( $children_pages, $count, $page->ID, $level + 1, $pagenum, $per_page, $to_display );
 		}
 
-		unset( $children_pages[ $parent ] ); //required in order to keep track of orphans
+		unset( $children_pages[ $parent ] ); // Required in order to keep track of orphans.
 	}
 
 	/**
@@ -1467,6 +1467,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 		$taxonomy_names          = get_object_taxonomies( $screen->post_type );
 		$hierarchical_taxonomies = array();
 		$flat_taxonomies         = array();
+
 		foreach ( $taxonomy_names as $taxonomy_name ) {
 
 			$taxonomy = get_taxonomy( $taxonomy_name );
@@ -1507,7 +1508,8 @@ class WP_Posts_List_Table extends WP_List_Table {
 
 		?>
 
-	<form method="get"><table style="display: none"><tbody id="inlineedit">
+		<form method="get">
+		<table style="display: none"><tbody id="inlineedit">
 		<?php
 		$hclass              = count( $hierarchical_taxonomies ) ? 'post' : 'page';
 		$inline_edit_classes = "inline-edit-row inline-edit-row-$hclass";
@@ -1515,24 +1517,21 @@ class WP_Posts_List_Table extends WP_List_Table {
 		$quick_edit_classes  = "quick-edit-row quick-edit-row-$hclass inline-edit-{$screen->post_type}";
 
 		$bulk = 0;
-		while ( $bulk < 2 ) {
+		while ( $bulk < 2 ) :
+			$classes  = $inline_edit_classes . ' ';
+			$classes .= $bulk ? $bulk_edit_classes : $quick_edit_classes;
 			?>
-
+			<tr id="<?php echo $bulk ? 'bulk-edit' : 'inline-edit'; ?>" class="<?php echo $classes; ?>" style="display: none">
-		<tr id="<?php echo $bulk ? 'bulk-edit' : 'inline-edit'; ?>" class="
+			<td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
-							<?php
-							echo $inline_edit_classes . ' ';
-							echo $bulk ? $bulk_edit_classes : $quick_edit_classes;
-							?>
-		" style="display: none"><td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
 
 			<fieldset class="inline-edit-col-left">
 				<legend class="inline-edit-legend"><?php echo $bulk ? __( 'Bulk Edit' ) : __( 'Quick Edit' ); ?></legend>
 				<div class="inline-edit-col">
-			<?php
 
-			if ( post_type_supports( $screen->post_type, 'title' ) ) :
+				<?php if ( post_type_supports( $screen->post_type, 'title' ) ) : ?>
-				if ( $bulk ) :
+
-					?>
+					<?php if ( $bulk ) : ?>
+
 						<div id="bulk-title-div">
 							<div id="bulk-titles"></div>
 						</div>
@@ -1544,18 +1543,18 @@ class WP_Posts_List_Table extends WP_List_Table {
 							<span class="input-text-wrap"><input type="text" name="post_title" class="ptitle" value="" /></span>
 						</label>
 
-				<?php if ( is_post_type_viewable( $screen->post_type ) ) : // is_post_type_viewable check ?>
+						<?php if ( is_post_type_viewable( $screen->post_type ) ) : ?>
 
 							<label>
 								<span class="title"><?php _e( 'Slug' ); ?></span>
 								<span class="input-text-wrap"><input type="text" name="post_name" value="" /></span>
 							</label>
 
-					<?php
+						<?php endif; // is_post_type_viewable() ?>
-	endif; // is_post_type_viewable check
+
-	endif; // $bulk
+					<?php endif; // $bulk ?>
-	endif; // post_type_supports title
+
-			?>
+				<?php endif; // post_type_supports( ... 'title' ) ?>
 
 				<?php if ( ! $bulk ) : ?>
 					<fieldset class="inline-edit-date">
@@ -1563,9 +1562,9 @@ class WP_Posts_List_Table extends WP_List_Table {
 						<?php touch_time( 1, 1, 0, 1 ); ?>
 					</fieldset>
 					<br class="clear" />
-				<?php
+				<?php endif; // $bulk ?>
-	endif; // $bulk
 
+				<?php
 				if ( post_type_supports( $screen->post_type, 'author' ) ) :
 					$authors_dropdown = '';
 
@@ -1579,6 +1578,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 							'echo'                    => 0,
 							'show'                    => 'display_name_with_login',
 						);
+
 						if ( $bulk ) {
 							$users_opt['show_option_none'] = __( '&mdash; No Change &mdash;' );
 						}
@@ -1590,17 +1590,18 @@ class WP_Posts_List_Table extends WP_List_Table {
 							$authors_dropdown .= $authors;
 							$authors_dropdown .= '</label>';
 						endif;
-				endif; // authors
+					endif; // current_user_can( 'edit_others_posts' )
 					?>
 
 					<?php
 					if ( ! $bulk ) {
-					echo $authors_dropdown;}
+						echo $authors_dropdown;
-	endif; // post_type_supports author
+					}
-
+				endif; // post_type_supports( ... 'author' )
-			if ( ! $bulk && $can_publish ) :
 				?>
 
+				<?php if ( ! $bulk && $can_publish ) : ?>
+
 					<div class="inline-edit-group wp-clearfix">
 						<label class="alignleft">
 							<span class="title"><?php _e( 'Password' ); ?></span>
@@ -1621,11 +1622,13 @@ class WP_Posts_List_Table extends WP_List_Table {
 
 				<?php endif; ?>
 
-		</div></fieldset>
+				</div>
+			</fieldset>
 
 			<?php if ( count( $hierarchical_taxonomies ) && ! $bulk ) : ?>
 
-		<fieldset class="inline-edit-col-center inline-edit-categories"><div class="inline-edit-col">
+				<fieldset class="inline-edit-col-center inline-edit-categories">
+					<div class="inline-edit-col">
 
 					<?php foreach ( $hierarchical_taxonomies as $taxonomy ) : ?>
 
@@ -1637,21 +1640,24 @@ class WP_Posts_List_Table extends WP_List_Table {
 
 					<?php endforeach; // $hierarchical_taxonomies as $taxonomy ?>
 
-		</div></fieldset>
+					</div>
+				</fieldset>
 
 			<?php endif; // count( $hierarchical_taxonomies ) && ! $bulk ?>
 
-		<fieldset class="inline-edit-col-right"><div class="inline-edit-col">
+			<fieldset class="inline-edit-col-right">
+				<div class="inline-edit-col">
 
 				<?php
 				if ( post_type_supports( $screen->post_type, 'author' ) && $bulk ) {
 					echo $authors_dropdown;
 				}
-
-			if ( post_type_supports( $screen->post_type, 'page-attributes' ) ) :
-
-				if ( $post_type_object->hierarchical ) :
 				?>
+
+				<?php if ( post_type_supports( $screen->post_type, 'page-attributes' ) ) : ?>
+
+					<?php if ( $post_type_object->hierarchical ) : ?>
+
 						<label>
 							<span class="title"><?php _e( 'Parent' ); ?></span>
 							<?php
@@ -1683,23 +1689,21 @@ class WP_Posts_List_Table extends WP_List_Table {
 							?>
 						</label>
 
-					<?php
+					<?php endif; // hierarchical ?>
-				endif; // hierarchical
 
-				if ( ! $bulk ) :
+					<?php if ( ! $bulk ) : ?>
-					?>
 
 						<label>
 							<span class="title"><?php _e( 'Order' ); ?></span>
 							<span class="input-text-wrap"><input type="text" name="menu_order" class="inline-edit-menu-order-input" value="<?php echo $post->menu_order; ?>" /></span>
 						</label>
 
-					<?php
+					<?php endif; // ! $bulk ?>
-				endif; // !$bulk
+
-		endif; // page-attributes
+				<?php endif; // post_type_supports( ... 'page-attributes' ) ?>
-			?>
 
 				<?php if ( 0 < count( get_page_templates( null, $screen->post_type ) ) ) : ?>
+
 					<label>
 						<span class="title"><?php _e( 'Template' ); ?></span>
 						<select name="page_template">
@@ -1714,33 +1718,35 @@ class WP_Posts_List_Table extends WP_List_Table {
 							<?php page_template_dropdown( '', $screen->post_type ); ?>
 						</select>
 					</label>
+
 				<?php endif; ?>
 
 				<?php if ( count( $flat_taxonomies ) && ! $bulk ) : ?>
 
 					<?php foreach ( $flat_taxonomies as $taxonomy ) : ?>
-					<?php
-					if ( current_user_can( $taxonomy->cap->assign_terms ) ) :
-						$taxonomy_name = esc_attr( $taxonomy->name );
 
-						?>
+						<?php if ( current_user_can( $taxonomy->cap->assign_terms ) ) : ?>
+							<?php $taxonomy_name = esc_attr( $taxonomy->name ); ?>
+
 							<label class="inline-edit-tags">
 								<span class="title"><?php echo esc_html( $taxonomy->labels->name ); ?></span>
 								<textarea data-wp-taxonomy="<?php echo $taxonomy_name; ?>" cols="22" rows="1" name="tax_input[<?php echo $taxonomy_name; ?>]" class="tax_input_<?php echo $taxonomy_name; ?>"></textarea>
 							</label>
-					<?php endif; ?>
+
+						<?php endif; // current_user_can( 'assign_terms' ) ?>
 
 					<?php endforeach; // $flat_taxonomies as $taxonomy ?>
 
 				<?php endif; // count( $flat_taxonomies ) && ! $bulk ?>
 
-			<?php
+				<?php if ( post_type_supports( $screen->post_type, 'comments' ) || post_type_supports( $screen->post_type, 'trackbacks' ) ) : ?>
-			if ( post_type_supports( $screen->post_type, 'comments' ) || post_type_supports( $screen->post_type, 'trackbacks' ) ) :
+
-				if ( $bulk ) :
+					<?php if ( $bulk ) : ?>
-					?>
 
 						<div class="inline-edit-group wp-clearfix">
+
 						<?php if ( post_type_supports( $screen->post_type, 'comments' ) ) : ?>
+
 							<label class="alignleft">
 								<span class="title"><?php _e( 'Comments' ); ?></span>
 								<select name="comment_status">
@@ -1749,7 +1755,11 @@ class WP_Posts_List_Table extends WP_List_Table {
 									<option value="closed"><?php _e( 'Do not allow' ); ?></option>
 								</select>
 							</label>
-		<?php endif; if ( post_type_supports( $screen->post_type, 'trackbacks' ) ) : ?>
+
+						<?php endif; ?>
+
+						<?php if ( post_type_supports( $screen->post_type, 'trackbacks' ) ) : ?>
+
 							<label class="alignright">
 								<span class="title"><?php _e( 'Pings' ); ?></span>
 								<select name="ping_status">
@@ -1758,44 +1768,56 @@ class WP_Posts_List_Table extends WP_List_Table {
 									<option value="closed"><?php _e( 'Do not allow' ); ?></option>
 								</select>
 							</label>
+
 						<?php endif; ?>
+
 						</div>
 
 					<?php else : // $bulk ?>
 
 						<div class="inline-edit-group wp-clearfix">
+
 						<?php if ( post_type_supports( $screen->post_type, 'comments' ) ) : ?>
+
 							<label class="alignleft">
 								<input type="checkbox" name="comment_status" value="open" />
 								<span class="checkbox-title"><?php _e( 'Allow Comments' ); ?></span>
 							</label>
-			<?php endif; if ( post_type_supports( $screen->post_type, 'trackbacks' ) ) : ?>
+
+						<?php endif; ?>
+
+						<?php if ( post_type_supports( $screen->post_type, 'trackbacks' ) ) : ?>
+
 							<label class="alignleft">
 								<input type="checkbox" name="ping_status" value="open" />
 								<span class="checkbox-title"><?php _e( 'Allow Pings' ); ?></span>
 							</label>
+
 						<?php endif; ?>
+
 						</div>
 
-				<?php
+					<?php endif; // $bulk ?>
-	endif; // $bulk
+
-	endif; // post_type_supports comments or pings
+				<?php endif; // post_type_supports( ... comments or pings ) ?>
-			?>
 
 					<div class="inline-edit-group wp-clearfix">
+
 						<label class="inline-edit-status alignleft">
 							<span class="title"><?php _e( 'Status' ); ?></span>
 							<select name="_status">
 								<?php if ( $bulk ) : ?>
 									<option value="-1"><?php _e( '&mdash; No Change &mdash;' ); ?></option>
 								<?php endif; // $bulk ?>
-					<?php if ( $can_publish ) : // Contributors only get "Unpublished" and "Pending Review" ?>
+
+								<?php if ( $can_publish ) : // Contributors only get "Unpublished" and "Pending Review". ?>
 									<option value="publish"><?php _e( 'Published' ); ?></option>
 									<option value="future"><?php _e( 'Scheduled' ); ?></option>
 									<?php if ( $bulk ) : ?>
 										<option value="private"><?php _e( 'Private' ); ?></option>
 									<?php endif; // $bulk ?>
 								<?php endif; ?>
+
 								<option value="pending"><?php _e( 'Pending Review' ); ?></option>
 								<option value="draft"><?php _e( 'Draft' ); ?></option>
 							</select>
@@ -1823,38 +1845,30 @@ class WP_Posts_List_Table extends WP_List_Table {
 
 							<?php endif; // $bulk ?>
 
-	<?php endif; // 'post' && $can_publish && current_user_can( 'edit_others_cap' ) ?>
+						<?php endif; // 'post' && $can_publish && current_user_can( 'edit_others_posts' ) ?>
 
 					</div>
 
-			<?php
+				<?php if ( $bulk && current_theme_supports( 'post-formats' ) && post_type_supports( $screen->post_type, 'post-formats' ) ) : ?>
+					<?php $post_formats = get_theme_support( 'post-formats' ); ?>
 
-			if ( $bulk && current_theme_supports( 'post-formats' ) && post_type_supports( $screen->post_type, 'post-formats' ) ) {
-				$post_formats = get_theme_support( 'post-formats' );
-
-				?>
 					<label class="alignleft">
 						<span class="title"><?php _ex( 'Format', 'post format' ); ?></span>
 						<select name="post_format">
 							<option value="-1"><?php _e( '&mdash; No Change &mdash;' ); ?></option>
 							<option value="0"><?php echo get_post_format_string( 'standard' ); ?></option>
-				<?php
+							<?php if ( is_array( $post_formats[0] ) ) : ?>
-				if ( is_array( $post_formats[0] ) ) {
+								<?php foreach ( $post_formats[0] as $format ) : ?>
-					foreach ( $post_formats[0] as $format ) {
-						?>
 									<option value="<?php echo esc_attr( $format ); ?>"><?php echo esc_html( get_post_format_string( $format ) ); ?></option>
-						<?php
+								<?php endforeach; ?>
-					}
+							<?php endif; ?>
-				}
+						</select>
-				?>
+					</label>
-		</select></label>
-				<?php
 
-			}
+				<?php endif; ?>
 
-			?>
+				</div>
-
+			</fieldset>
-		</div></fieldset>
 
 			<?php
 			list( $columns ) = $this->get_column_info();
@@ -1890,35 +1904,38 @@ class WP_Posts_List_Table extends WP_List_Table {
 				}
 			}
 			?>
+
 			<div class="submit inline-edit-save">
 				<button type="button" class="button cancel alignleft"><?php _e( 'Cancel' ); ?></button>
-			<?php
+
-			if ( ! $bulk ) {
+				<?php if ( ! $bulk ) : ?>
-				wp_nonce_field( 'inlineeditnonce', '_inline_edit', false );
+					<?php wp_nonce_field( 'inlineeditnonce', '_inline_edit', false ); ?>
-				?>
 					<button type="button" class="button button-primary save alignright"><?php _e( 'Update' ); ?></button>
 					<span class="spinner"></span>
-				<?php
+				<?php else : ?>
-			} else {
+					<?php submit_button( __( 'Update' ), 'primary alignright', 'bulk_edit', false ); ?>
-				submit_button( __( 'Update' ), 'primary alignright', 'bulk_edit', false );
+				<?php endif; ?>
-			}
+
-			?>
 				<input type="hidden" name="post_view" value="<?php echo esc_attr( $m ); ?>" />
 				<input type="hidden" name="screen" value="<?php echo esc_attr( $screen->id ); ?>" />
-			<?php if ( ! $bulk && ! post_type_supports( $screen->post_type, 'author' ) ) { ?>
+				<?php if ( ! $bulk && ! post_type_supports( $screen->post_type, 'author' ) ) : ?>
 					<input type="hidden" name="post_author" value="<?php echo esc_attr( $post->post_author ); ?>" />
-			<?php } ?>
+				<?php endif; ?>
 				<br class="clear" />
+
 				<div class="notice notice-error notice-alt inline hidden">
 					<p class="error"></p>
 				</div>
 			</div>
+
 			</td></tr>
+
 			<?php
 			$bulk++;
-		}
+		endwhile;
 		?>
-		</tbody></table></form>
+		</tbody></table>
+		</form>
 		<?php
 	}
 }

wp-admin/includes/class-wp-privacy-requests-table.php

@@ -73,9 +73,11 @@ abstract class WP_Privacy_Requests_Table extends WP_List_Table {
 	 * @return array Default sortable columns.
 	 */
 	protected function get_sortable_columns() {
-		// The initial sorting is by 'Requested' (post_date) and descending.
+		/*
-		// With initial sorting, the first click on 'Requested' should be ascending.
+		 * The initial sorting is by 'Requested' (post_date) and descending.
-		// With 'Requester' sorting active, the next click on 'Requested' should be descending.
+		 * With initial sorting, the first click on 'Requested' should be ascending.
+		 * With 'Requester' sorting active, the next click on 'Requested' should be descending.
+		 */
 		$desc_first = isset( $_GET['orderby'] );
 
 		return array(
@@ -146,7 +148,7 @@ abstract class WP_Privacy_Requests_Table extends WP_List_Table {
 		$counts         = $this->get_request_counts();
 		$total_requests = absint( array_sum( (array) $counts ) );
 
-		// Normalized admin URL
+		// Normalized admin URL.
 		$admin_url = $this->get_admin_url();
 
 		$current_link_attributes = empty( $current_status ) ? ' class="current" aria-current="page"' : '';

wp-admin/includes/class-wp-screen.php

@@ -226,7 +226,7 @@ final class WP_Screen {
 		// For those pesky meta boxes.
 		if ( $hook_name && post_type_exists( $hook_name ) ) {
 			$post_type = $id;
-			$id        = 'post'; // changes later. ends up being $base.
+			$id        = 'post'; // Changes later. Ends up being $base.
 		} else {
 			if ( '.php' == substr( $id, -4 ) ) {
 				$id = substr( $id, 0, -4 );
@@ -923,7 +923,7 @@ final class WP_Screen {
 				</div>
 			</div>
 		<?php
-		// Setup layout columns
+		// Setup layout columns.
 
 		/**
 		 * Filters the array of screen layout columns.
@@ -952,7 +952,7 @@ final class WP_Screen {
 		}
 		$GLOBALS['screen_layout_columns'] = $this->columns; // Set the global for back-compat.
 
-		// Add screen options
+		// Add screen options.
 		if ( $this->show_screen_options() ) {
 			$this->render_screen_options();
 		}
@@ -1156,7 +1156,7 @@ final class WP_Screen {
 		$special = array( '_title', 'cb', 'comment', 'media', 'name', 'title', 'username', 'blogname' );
 
 		foreach ( $columns as $column => $title ) {
-			// Can't hide these for they are special
+			// Can't hide these for they are special.
 			if ( in_array( $column, $special ) ) {
 				continue;
 			}
@@ -1255,13 +1255,13 @@ final class WP_Screen {
 			$per_page = apply_filters( "{$option}", $per_page );
 		}
 
-		// Back compat
+		// Back compat.
 		if ( isset( $this->post_type ) ) {
 			/** This filter is documented in wp-admin/includes/post.php */
 			$per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type );
 		}
 
-		// This needs a submit button
+		// This needs a submit button.
 		add_filter( 'screen_options_show_submit', '__return_true' );
 
 		?>
@@ -1288,7 +1288,7 @@ final class WP_Screen {
 	public function render_view_mode() {
 		$screen = get_current_screen();
 
-		// Currently only enabled for posts lists
+		// Currently only enabled for posts lists.
 		if ( 'edit' !== $screen->base ) {
 			return;
 		}
@@ -1316,7 +1316,7 @@ final class WP_Screen {
 
 		global $mode;
 
-		// This needs a submit button
+		// This needs a submit button.
 		add_filter( 'screen_options_show_submit', '__return_true' );
 		?>
 		<fieldset class="metabox-prefs view-mode">

wp-admin/includes/class-wp-site-health-auto-updates.php

@@ -353,12 +353,12 @@ class WP_Site_Health_Auto_Updates {
 
 		$checksums = get_core_checksums( $wp_version, 'en_US' );
 		$dev       = ( false !== strpos( $wp_version, '-' ) );
-		// Get the last stable version's files and test against that
+		// Get the last stable version's files and test against that.
 		if ( ! $checksums && $dev ) {
 			$checksums = get_core_checksums( (float) $wp_version - 0.1, 'en_US' );
 		}
 
-		// There aren't always checksums for development releases, so just skip the test if we still can't find any
+		// There aren't always checksums for development releases, so just skip the test if we still can't find any.
 		if ( ! $checksums && $dev ) {
 			return false;
 		}
@@ -415,7 +415,7 @@ class WP_Site_Health_Auto_Updates {
 	 */
 	function test_accepts_dev_updates() {
 		include ABSPATH . WPINC . '/version.php'; // $wp_version; // x.y.z
-		// Only for dev versions
+		// Only for dev versions.
 		if ( false === strpos( $wp_version, '-' ) ) {
 			return false;
 		}

wp-admin/includes/class-wp-site-health.php

@@ -103,7 +103,7 @@ class WP_Site_Health {
 		if ( 'site-health' === $screen->id && ! isset( $_GET['tab'] ) ) {
 			$tests = WP_Site_Health::get_tests();
 
-			// Don't run https test on localhost
+			// Don't run https test on localhost.
 			if ( 'localhost' === preg_replace( '|https?://|', '', get_site_url() ) ) {
 				unset( $tests['direct']['https_status'] );
 			}
@@ -1217,7 +1217,7 @@ class WP_Site_Health {
 					__( 'Your MySQL version supports utf8mb4.' )
 				);
 			}
-		} else { // MariaDB introduced utf8mb4 support in 5.5.0
+		} else { // MariaDB introduced utf8mb4 support in 5.5.0.
 			if ( version_compare( $this->mysql_server_version, '5.5.0', '<' ) ) {
 				$result['status'] = 'recommended';
 
@@ -2235,7 +2235,7 @@ class WP_Site_Health {
 			'critical'    => 0,
 		);
 
-		// Don't run https test on localhost
+		// Don't run https test on localhost.
 		if ( 'localhost' === preg_replace( '|https?://|', '', get_site_url() ) ) {
 			unset( $tests['direct']['https_status'] );
 		}

wp-admin/includes/class-wp-site-icon.php

@@ -154,7 +154,7 @@ class WP_Site_Icon {
 		natsort( $this->site_icon_sizes );
 		$this->site_icon_sizes = array_reverse( $this->site_icon_sizes );
 
-		// ensure that we only resize the image into
+		// Ensure that we only resize the image into sizes that allow cropping.
 		foreach ( $sizes as $name => $size_array ) {
 			if ( isset( $size_array['crop'] ) ) {
 				$only_crop_sizes[ $name ] = $size_array;

wp-admin/includes/class-wp-terms-list-table.php

@@ -139,7 +139,7 @@ class WP_Terms_List_Table extends WP_List_Table {
 	 * @return bool
 	 */
 	public function has_items() {
-		// todo: populate $this->items in prepare_items()
+		// @todo Populate $this->items in prepare_items().
 		return true;
 	}
 
@@ -254,7 +254,11 @@ class WP_Terms_List_Table extends WP_List_Table {
 			} else {
 				$children = _get_term_hierarchy( $taxonomy );
 			}
-			// Some funky recursion to get the job done( Paging & parents mainly ) is contained within, Skip it for non-hierarchical taxonomies for performance sake
+
+			/*
+			 * Some funky recursion to get the job done (paging & parents mainly) is contained within.
+			 * Skip it for non-hierarchical taxonomies for performance sake.
+			 */
 			$this->_rows( $taxonomy, $terms, $children, $offset, $number, $count );
 		} else {
 			foreach ( $terms as $term ) {
@@ -628,8 +632,11 @@ class WP_Terms_List_Table extends WP_List_Table {
 		}
 		?>
 
-	<form method="get"><table style="display: none"><tbody id="inlineedit">
+		<form method="get">
-		<tr id="inline-edit" class="inline-edit-row" style="display: none"><td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
+		<table style="display: none"><tbody id="inlineedit">
+
+			<tr id="inline-edit" class="inline-edit-row" style="display: none">
+			<td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
 
 			<fieldset>
 				<legend class="inline-edit-legend"><?php _e( 'Quick Edit' ); ?></legend>
@@ -638,15 +645,17 @@ class WP_Terms_List_Table extends WP_List_Table {
 					<span class="title"><?php _ex( 'Name', 'term name' ); ?></span>
 					<span class="input-text-wrap"><input type="text" name="name" class="ptitle" value="" /></span>
 				</label>
-		<?php if ( ! global_terms_enabled() ) { ?>
+
+				<?php if ( ! global_terms_enabled() ) : ?>
 					<label>
 						<span class="title"><?php _e( 'Slug' ); ?></span>
 						<span class="input-text-wrap"><input type="text" name="slug" class="ptitle" value="" /></span>
 					</label>
-	<?php } ?>
+				<?php endif; ?>
-			</div></fieldset>
+				</div>
-		<?php
+			</fieldset>
 
+			<?php
 			$core_columns = array(
 				'cb'          => true,
 				'description' => true,
@@ -665,23 +674,27 @@ class WP_Terms_List_Table extends WP_List_Table {
 				/** This action is documented in wp-admin/includes/class-wp-posts-list-table.php */
 				do_action( 'quick_edit_custom_box', $column_name, 'edit-tags', $this->screen->taxonomy );
 			}
-
 			?>
 
 			<div class="inline-edit-save submit">
 				<button type="button" class="cancel button alignleft"><?php _e( 'Cancel' ); ?></button>
 				<button type="button" class="save button button-primary alignright"><?php echo $tax->labels->update_item; ?></button>
 				<span class="spinner"></span>
+
 				<?php wp_nonce_field( 'taxinlineeditnonce', '_inline_edit', false ); ?>
 				<input type="hidden" name="taxonomy" value="<?php echo esc_attr( $this->screen->taxonomy ); ?>" />
 				<input type="hidden" name="post_type" value="<?php echo esc_attr( $this->screen->post_type ); ?>" />
 				<br class="clear" />
+
 				<div class="notice notice-error notice-alt inline hidden">
 					<p class="error"></p>
 				</div>
 			</div>
+
 			</td></tr>
-		</tbody></table></form>
+
+		</tbody></table>
+		</form>
 		<?php
 	}
 }

wp-admin/includes/class-wp-theme-install-list-table.php

@@ -231,7 +231,7 @@ class WP_Theme_Install_List_Table extends WP_Themes_List_Table {
 				?>
 				</div>
 			<?php
-		} // end foreach $theme_names
+		} // End foreach $theme_names.
 
 		$this->theme_installer();
 	}

wp-admin/includes/class-wp-themes-list-table.php

@@ -300,14 +300,14 @@ class WP_Themes_List_Table extends WP_List_Table {
 	 * @return bool
 	 */
 	public function search_theme( $theme ) {
-		// Search the features
+		// Search the features.
 		foreach ( $this->features as $word ) {
 			if ( ! in_array( $word, $theme->get( 'Tags' ) ) ) {
 				return false;
 			}
 		}
 
-		// Match all phrases
+		// Match all phrases.
 		foreach ( $this->search_terms as $word ) {
 			if ( in_array( $word, $theme->get( 'Tags' ) ) ) {
 				continue;

wp-admin/includes/class-wp-upgrader.php

@@ -195,7 +195,7 @@ class WP_Upgrader {
 			if ( is_object( $wp_filesystem ) && $wp_filesystem->errors->has_errors() ) {
 				$error = $wp_filesystem->errors;
 			}
-			// Failed to connect, Error and request again
+			// Failed to connect. Error and request again.
 			$this->skin->request_filesystem_credentials( $error, $directories[0], $allow_relaxed_file_ownership );
 			return false;
 		}
@@ -238,7 +238,7 @@ class WP_Upgrader {
 			}
 		}
 		return true;
-	} //end fs_connect();
+	}
 
 	/**
 	 * Download a package.
@@ -268,7 +268,7 @@ class WP_Upgrader {
 		}
 
 		if ( ! preg_match( '!^(http|https|ftp)://!i', $package ) && file_exists( $package ) ) { // Local file or remote?
-			return $package; //must be a local file..
+			return $package; // Must be a local file.
 		}
 
 		if ( empty( $package ) ) {
@@ -313,15 +313,15 @@ class WP_Upgrader {
 			}
 		}
 
-		// We need a working directory - Strip off any .tmp or .zip suffixes
+		// We need a working directory - strip off any .tmp or .zip suffixes.
 		$working_dir = $upgrade_folder . basename( basename( $package, '.tmp' ), '.zip' );
 
-		// Clean up working directory
+		// Clean up working directory.
 		if ( $wp_filesystem->is_dir( $working_dir ) ) {
 			$wp_filesystem->delete( $working_dir, true );
 		}
 
-		// Unzip package to working directory
+		// Unzip package to working directory.
 		$result = unzip_file( $package, $working_dir );
 
 		// Once extracted, delete the package if required.
@@ -356,11 +356,11 @@ class WP_Upgrader {
 		foreach ( $nested_files as $name => $details ) {
 			$files[ $path . $name ] = $details;
 
-			// Append children recursively
+			// Append children recursively.
 			if ( ! empty( $details['files'] ) ) {
 				$children = $this->flatten_dirlist( $details['files'], $path . $name . '/' );
 
-				// Merge keeping possible numeric keys, which array_merge() will reindex from 0..n
+				// Merge keeping possible numeric keys, which array_merge() will reindex from 0..n.
 				$files = $files + $children;
 			}
 		}
@@ -388,7 +388,7 @@ class WP_Upgrader {
 			return true;
 		}
 
-		// Flatten the file list to iterate over
+		// Flatten the file list to iterate over.
 		$files = $this->flatten_dirlist( $files );
 
 		// Check all files are writable before attempting to clear the destination.
@@ -450,8 +450,8 @@ class WP_Upgrader {
 		global $wp_filesystem, $wp_theme_directories;
 
 		$defaults = array(
-			'source'                      => '', // Please always pass this
+			'source'                      => '', // Please always pass this.
-			'destination'                 => '', // and this
+			'destination'                 => '', // ...and this.
 			'clear_destination'           => false,
 			'clear_working'               => false,
 			'abort_if_destination_exists' => true,
@@ -490,19 +490,23 @@ class WP_Upgrader {
 			return $res;
 		}
 
-		//Retain the Original source and destinations
+		// Retain the original source and destinations.
 		$remote_source     = $args['source'];
 		$local_destination = $destination;
 
 		$source_files       = array_keys( $wp_filesystem->dirlist( $remote_source ) );
 		$remote_destination = $wp_filesystem->find_folder( $local_destination );
 
-		//Locate which directory to copy to the new folder, This is based on the actual folder holding the files.
+		// Locate which directory to copy to the new folder. This is based on the actual folder holding the files.
-		if ( 1 == count( $source_files ) && $wp_filesystem->is_dir( trailingslashit( $args['source'] ) . $source_files[0] . '/' ) ) { //Only one folder? Then we want its contents.
+		if ( 1 == count( $source_files ) && $wp_filesystem->is_dir( trailingslashit( $args['source'] ) . $source_files[0] . '/' ) ) {
+			// Only one folder? Then we want its contents.
 			$source = trailingslashit( $args['source'] ) . trailingslashit( $source_files[0] );
 		} elseif ( count( $source_files ) == 0 ) {
-			return new WP_Error( 'incompatible_archive_empty', $this->strings['incompatible_archive'], $this->strings['no_files'] ); // There are no files?
+			// There are no files?
-		} else { // It's only a single file, the upgrader will use the folder name of this file as the destination folder. Folder name is based on zip filename.
+			return new WP_Error( 'incompatible_archive_empty', $this->strings['incompatible_archive'], $this->strings['no_files'] );
+		} else {
+			// It's only a single file, the upgrader will use the folder name of this file as the destination folder.
+			// Folder name is based on zip filename.
 			$source = trailingslashit( $args['source'] );
 		}
 
@@ -568,7 +572,7 @@ class WP_Upgrader {
 				return $removed;
 			}
 		} elseif ( $args['abort_if_destination_exists'] && $wp_filesystem->exists( $remote_destination ) ) {
-			//If we're not clearing the destination folder and something exists there already, Bail.
+			// If we're not clearing the destination folder and something exists there already, bail.
 			// But first check to see if there are actually any files in the folder.
 			$_files = $wp_filesystem->dirlist( $remote_destination );
 			if ( ! empty( $_files ) ) {
@@ -577,12 +581,13 @@ class WP_Upgrader {
 			}
 		}
 
-		//Create destination if needed
+		// Create destination if needed.
 		if ( ! $wp_filesystem->exists( $remote_destination ) ) {
 			if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) ) {
 				return new WP_Error( 'mkdir_failed_destination', $this->strings['mkdir_failed'], $remote_destination );
 			}
 		}
+
 		// Copy new version of item into place.
 		$result = copy_dir( $source, $remote_destination );
 		if ( is_wp_error( $result ) ) {
@@ -592,7 +597,7 @@ class WP_Upgrader {
 			return $result;
 		}
 
-		//Clear the Working folder?
+		// Clear the working folder?
 		if ( $args['clear_working'] ) {
 			$wp_filesystem->delete( $remote_source, true );
 		}
@@ -661,9 +666,9 @@ class WP_Upgrader {
 
 		$defaults = array(
 			'package'                     => '', // Please always pass this.
-			'destination'                 => '', // And this
+			'destination'                 => '', // ...and this.
 			'clear_destination'           => false,
-			'abort_if_destination_exists' => true, // Abort if the Destination directory exists, Pass clear_destination as false please
+			'abort_if_destination_exists' => true, // Abort if the destination directory exists. Pass clear_destination as false please.
 			'clear_working'               => true,
 			'is_multi'                    => false,
 			'hook_extra'                  => array(), // Pass any extra $hook_extra args here, this will be passed to any hooked filters.
@@ -703,11 +708,11 @@ class WP_Upgrader {
 		 */
 		$options = apply_filters( 'upgrader_package_options', $options );
 
-		if ( ! $options['is_multi'] ) { // call $this->header separately if running multiple times
+		if ( ! $options['is_multi'] ) { // Call $this->header separately if running multiple times.
 			$this->skin->header();
 		}
 
-		// Connect to the Filesystem first.
+		// Connect to the filesystem first.
 		$res = $this->fs_connect( array( WP_CONTENT_DIR, $options['destination'] ) );
 		// Mainly for non-connected filesystem.
 		if ( ! $res ) {
@@ -740,7 +745,7 @@ class WP_Upgrader {
 
 			// Don't output the 'no signature could be found' failure message for now.
 			if ( 'signature_verification_no_signature' != $download->get_error_code() || WP_DEBUG ) {
-				// Outout the failure error as a normal feedback, and not as an error:
+				// Output the failure error as a normal feedback, and not as an error.
 				$this->skin->feedback( $download->get_error_message() );
 
 				// Report this failure back to WordPress.org for debugging purposes.
@@ -765,7 +770,7 @@ class WP_Upgrader {
 			return $download;
 		}
 
-		$delete_package = ( $download != $options['package'] ); // Do not delete a "local" file
+		$delete_package = ( $download != $options['package'] ); // Do not delete a "local" file.
 
 		// Unzips the file into a temporary directory.
 		$working_dir = $this->unpack_package( $download, $delete_package );
@@ -857,7 +862,7 @@ class WP_Upgrader {
 		$file = $wp_filesystem->abspath() . '.maintenance';
 		if ( $enable ) {
 			$this->skin->feedback( 'maintenance_start' );
-			// Create maintenance file to signal that we are upgrading
+			// Create maintenance file to signal that we are upgrading.
 			$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
 			$wp_filesystem->delete( $file );
 			$wp_filesystem->put_contents( $file, $maintenance_string, FS_CHMOD_FILE );

wp-admin/includes/class-wp-users-list-table.php

@@ -137,7 +137,7 @@ class WP_Users_List_Table extends WP_List_Table {
 		 */
 		$args = apply_filters( 'users_list_table_query_args', $args );
 
-		// Query the user IDs for this page
+		// Query the user IDs for this page.
 		$wp_user_search = new WP_User_Query( $args );
 
 		$this->items = $wp_user_search->get_results();
@@ -389,7 +389,7 @@ class WP_Users_List_Table extends WP_List_Table {
 	 * @since 3.1.0
 	 */
 	public function display_rows() {
-		// Query the post counts for this page
+		// Query the post counts for this page.
 		if ( ! $this->is_site_users ) {
 			$post_counts = count_many_users_posts( array_keys( $this->items ) );
 		}
@@ -428,7 +428,7 @@ class WP_Users_List_Table extends WP_List_Table {
 
 		$user_roles = $this->get_role_list( $user_object );
 
-		// Set up the hover actions for this user
+		// Set up the hover actions for this user.
 		$actions     = array();
 		$checkbox    = '';
 		$super_admin = '';
@@ -439,9 +439,9 @@ class WP_Users_List_Table extends WP_List_Table {
 			}
 		}
 
-		// Check if the user for this row is editable
+		// Check if the user for this row is editable.
 		if ( current_user_can( 'list_users' ) ) {
-			// Set up the user editing link
+			// Set up the user editing link.
 			$edit_link = esc_url( add_query_arg( 'wp_http_referer', urlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) ), get_edit_user_link( $user_object->ID ) ) );
 
 			if ( current_user_can( 'edit_user', $user_object->ID ) ) {
@@ -485,7 +485,7 @@ class WP_Users_List_Table extends WP_List_Table {
 			// Role classes.
 			$role_classes = esc_attr( implode( ' ', array_keys( $user_roles ) ) );
 
-			// Set up the checkbox ( because the user is editable, otherwise it's empty )
+			// Set up the checkbox (because the user is editable, otherwise it's empty).
 			$checkbox = sprintf(
 				'<label class="screen-reader-text" for="user_%1$s">%2$s</label>' .
 				'<input type="checkbox" name="users[]" id="user_%1$s" class="%3$s" value="%1$s" />',
@@ -514,7 +514,7 @@ class WP_Users_List_Table extends WP_List_Table {
 				$classes .= ' has-row-actions column-primary';
 			}
 			if ( 'posts' === $column_name ) {
-				$classes .= ' num'; // Special case for that column
+				$classes .= ' num'; // Special case for that column.
 			}
 
 			if ( in_array( $column_name, $hidden ) ) {

wp-admin/includes/comment.php

@@ -89,6 +89,7 @@ function edit_comment() {
 		$hh = ( $hh > 23 ) ? $hh - 24 : $hh;
 		$mn = ( $mn > 59 ) ? $mn - 60 : $mn;
 		$ss = ( $ss > 59 ) ? $ss - 60 : $ss;
+
 		$_POST['comment_date'] = "$aa-$mm-$jj $hh:$mn:$ss";
 	}
 

wp-admin/includes/credits.php

@@ -15,7 +15,7 @@
  * @return array|false A list of all of the contributors, or false on error.
  */
 function wp_credits() {
-	// include an unmodified $wp_version
+	// Include an unmodified $wp_version.
 	include( ABSPATH . WPINC . '/version.php' );
 
 	$locale = get_user_locale();

wp-admin/includes/dashboard.php

@@ -263,7 +263,7 @@ function wp_dashboard() {
 }
 
 //
-// Dashboard Widgets
+// Dashboard Widgets.
 //
 
 /**
@@ -1116,7 +1116,7 @@ function wp_dashboard_cached_rss_widget( $widget_id, $callback, $check_urls = ar
 }
 
 //
-// Dashboard Widgets Controls
+// Dashboard Widgets Controls.
 //
 
 /**

wp-admin/includes/file.php

@@ -1214,7 +1214,7 @@ function verify_file_signature( $filename, $signatures, $filename_for_errors = f
 	// Check for a edge-case affecting PHP Maths abilities.
 	if (
 		! extension_loaded( 'sodium' ) &&
-		in_array( PHP_VERSION_ID, [ 70200, 70201, 70202 ], true ) &&
+		in_array( PHP_VERSION_ID, array( 70200, 70201, 70202 ), true ) &&
 		extension_loaded( 'opcache' )
 	) {
 		// Sodium_Compat isn't compatible with PHP 7.2.0~7.2.2 due to a bug in the PHP Opcache extension, bail early as it'll fail.
@@ -1546,7 +1546,7 @@ function _unzip_file_ziparchive( $file, $to, $needed_dirs = array() ) {
 			return new WP_Error( 'stat_failed_ziparchive', __( 'Could not retrieve file from archive.' ) );
 		}
 
-		if ( '/' == substr( $info['name'], -1 ) ) { // directory
+		if ( '/' == substr( $info['name'], -1 ) ) { // Directory.
 			continue;
 		}
 

wp-admin/includes/image.php

@@ -272,8 +272,8 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 		 */
 		$threshold = (int) apply_filters( 'big_image_size_threshold', 2560, $imagesize, $file, $attachment_id );
 
-		// If the original image's dimensions are over the threshold, scale the image
+		// If the original image's dimensions are over the threshold,
-		// and use it as the "full" size.
+		// scale the image and use it as the "full" size.
 		if ( $threshold && ( $image_meta['width'] > $threshold || $image_meta['height'] > $threshold ) ) {
 			$editor = wp_get_image_editor( $file );
 
@@ -282,7 +282,7 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 				return $image_meta;
 			}
 
-			// Resize the image
+			// Resize the image.
 			$resized = $editor->resize( $threshold, $threshold );
 			$rotated = null;
 
@@ -305,10 +305,10 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 						$image_meta['image_meta']['orientation'] = 1;
 					}
 				} else {
-					// TODO: log errors.
+					// TODO: Log errors.
 				}
 			} else {
-				// TODO: log errors.
+				// TODO: Log errors.
 			}
 		} elseif ( ! empty( $exif_meta['orientation'] ) && (int) $exif_meta['orientation'] !== 1 ) {
 			// Rotate the whole original image if there is EXIF data and "orientation" is not 1.
@@ -335,7 +335,7 @@ function wp_create_image_subsizes( $file, $attachment_id ) {
 						$image_meta['image_meta']['orientation'] = 1;
 					}
 				} else {
-					// TODO: log errors.
+					// TODO: Log errors.
 				}
 			}
 		}
@@ -434,7 +434,7 @@ function _wp_make_subsizes( $new_sizes, $file, $image_meta, $attachment_id ) {
 		$rotated = $editor->maybe_exif_rotate();
 
 		if ( is_wp_error( $rotated ) ) {
-			// TODO: log errors.
+			// TODO: Log errors.
 		}
 	}
 
@@ -443,7 +443,7 @@ function _wp_make_subsizes( $new_sizes, $file, $image_meta, $attachment_id ) {
 			$new_size_meta = $editor->make_subsize( $new_size_data );
 
 			if ( is_wp_error( $new_size_meta ) ) {
-				// TODO: log errors.
+				// TODO: Log errors.
 			} else {
 				// Save the size meta value.
 				$image_meta['sizes'][ $new_size_name ] = $new_size_meta;
@@ -575,7 +575,7 @@ function wp_generate_attachment_metadata( $attachment_id, $file ) {
 		if ( ! empty( $merged_sizes ) ) {
 			$editor = wp_get_image_editor( $file );
 
-			if ( ! is_wp_error( $editor ) ) { // No support for this type of file
+			if ( ! is_wp_error( $editor ) ) { // No support for this type of file.
 				/*
 				 * PDFs may have the same file filename as JPEGs.
 				 * Ensure the PDF preview image does not overwrite any JPEG images that already exist.
@@ -715,18 +715,18 @@ function wp_read_image_metadata( $file ) {
 		if ( ! empty( $info['APP13'] ) ) {
 			$iptc = @iptcparse( $info['APP13'] );
 
-			// Headline, "A brief synopsis of the caption."
+			// Headline, "A brief synopsis of the caption".
 			if ( ! empty( $iptc['2#105'][0] ) ) {
 				$meta['title'] = trim( $iptc['2#105'][0] );
 				/*
 				* Title, "Many use the Title field to store the filename of the image,
-				* though the field may be used in many ways."
+				* though the field may be used in many ways".
 				*/
 			} elseif ( ! empty( $iptc['2#005'][0] ) ) {
 				$meta['title'] = trim( $iptc['2#005'][0] );
 			}
 
-			if ( ! empty( $iptc['2#120'][0] ) ) { // description / legacy caption
+			if ( ! empty( $iptc['2#120'][0] ) ) { // Description / legacy caption.
 				$caption = trim( $iptc['2#120'][0] );
 
 				mbstring_binary_safe_encoding();

wp-admin/includes/import.php

@@ -136,7 +136,8 @@ function wp_import_handle_upload() {
  * @return array Importers with metadata for each.
  */
 function wp_get_popular_importers() {
-	include( ABSPATH . WPINC . '/version.php' ); // Include an unmodified $wp_version.
+	// Include an unmodified $wp_version.
+	include( ABSPATH . WPINC . '/version.php' );
 
 	$locale            = get_user_locale();
 	$cache_key         = 'popular_importers_' . md5( $locale . $wp_version );

wp-admin/includes/media.php

@@ -770,7 +770,7 @@ function media_upload_form_handler() {
 				if ( $image_alt != get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) {
 					$image_alt = wp_strip_all_tags( $image_alt, true );
 
-					// Update_meta expects slashed.
+					// update_post_meta() expects slashed.
 					update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
 				}
 			}

wp-admin/includes/privacy-tools.php

@@ -321,7 +321,7 @@ function wp_privacy_generate_personal_data_export_file( $request_id ) {
 	}
 
 	$stripped_email       = str_replace( '@', '-at-', $email_address );
-	$stripped_email       = sanitize_title( $stripped_email ); // slugify the email address
+	$stripped_email       = sanitize_title( $stripped_email ); // Slugify the email address.
 	$obscura              = wp_generate_password( 32, false, false );
 	$file_basename        = 'wp-personal-data-file-' . $stripped_email . '-' . $obscura;
 	$html_report_filename = $file_basename . '.html';

wp-admin/includes/revision.php

@@ -55,7 +55,7 @@ function wp_get_revision_ui_diff( $post, $compare_from, $compare_to ) {
 		$compare_to   = $temp;
 	}
 
-	// Add default title if title field is empty
+	// Add default title if title field is empty.
 	if ( $compare_from && empty( $compare_from->post_title ) ) {
 		$compare_from->post_title = __( '(no title)' );
 	}
@@ -340,7 +340,7 @@ function wp_prepare_revisions_for_js( $post, $selected_revision_id, $from = null
 		'from'           => $from,
 		'diffData'       => $diffs,
 		'baseUrl'        => parse_url( admin_url( 'revision.php' ), PHP_URL_PATH ),
-		'compareTwoMode' => absint( $compare_two_mode ), // Apparently booleans are not allowed
+		'compareTwoMode' => absint( $compare_two_mode ), // Apparently booleans are not allowed.
 		'revisionIds'    => array_keys( $revisions ),
 	);
 }

wp-admin/includes/schema.php

@@ -52,7 +52,7 @@ function wp_get_db_schema( $scope = 'all', $blog_id = null ) {
 	 */
 	$max_index_length = 191;
 
-	// Blog specific tables.
+	// Blog-specific tables.
 	$blog_tables = "CREATE TABLE $wpdb->termmeta (
 	meta_id bigint(20) unsigned NOT NULL auto_increment,
 	term_id bigint(20) unsigned NOT NULL default '0',
@@ -205,7 +205,7 @@ CREATE TABLE $wpdb->posts (
 	KEY user_email (user_email)
 ) $charset_collate;\n";
 
-	// Multisite users table
+	// Multisite users table.
 	$users_multi_table = "CREATE TABLE $wpdb->users (
 	ID bigint(20) unsigned NOT NULL auto_increment,
 	user_login varchar(60) NOT NULL default '',
@@ -236,7 +236,7 @@ CREATE TABLE $wpdb->posts (
 	KEY meta_key (meta_key($max_index_length))
 ) $charset_collate;\n";
 
-	// Global tables
+	// Global tables.
 	if ( $is_multisite ) {
 		$global_tables = $users_multi_table . $usermeta_table;
 	} else {
@@ -547,7 +547,7 @@ function populate_options( array $options = array() ) {
 			? $wp_current_db_version : $wp_db_version;
 	}
 
-	// 3.0 multisite
+	// 3.0 multisite.
 	if ( is_multisite() ) {
 		/* translators: %s: Network title. */
 		$defaults['blogdescription']     = sprintf( __( 'Just another %s site' ), get_network()->site_name );
@@ -556,7 +556,7 @@ function populate_options( array $options = array() ) {
 
 	$options = wp_parse_args( $options, $defaults );
 
-	// Set autoload to no for these options
+	// Set autoload to no for these options.
 	$fat_options = array( 'moderation_keys', 'recently_edited', 'blacklist_keys', 'uninstall_plugins' );
 
 	$keys             = "'" . implode( "', '", array_keys( $options ) ) . "'";
@@ -677,7 +677,7 @@ function populate_options( array $options = array() ) {
 	// Delete obsolete magpie stuff.
 	$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name REGEXP '^rss_[0-9a-f]{32}(_ts)?$'" );
 
-	// Clear expired transients
+	// Clear expired transients.
 	delete_expired_transients( true );
 }
 
@@ -703,15 +703,14 @@ function populate_roles() {
  * @since 2.0.0
  */
 function populate_roles_160() {
-	// Add roles
+	// Add roles.
-
 	add_role( 'administrator', 'Administrator' );
 	add_role( 'editor', 'Editor' );
 	add_role( 'author', 'Author' );
 	add_role( 'contributor', 'Contributor' );
 	add_role( 'subscriber', 'Subscriber' );
 
-	// Add caps for Administrator role
+	// Add caps for Administrator role.
 	$role = get_role( 'administrator' );
 	$role->add_cap( 'switch_themes' );
 	$role->add_cap( 'edit_themes' );
@@ -744,7 +743,7 @@ function populate_roles_160() {
 	$role->add_cap( 'level_1' );
 	$role->add_cap( 'level_0' );
 
-	// Add caps for Editor role
+	// Add caps for Editor role.
 	$role = get_role( 'editor' );
 	$role->add_cap( 'moderate_comments' );
 	$role->add_cap( 'manage_categories' );
@@ -766,7 +765,7 @@ function populate_roles_160() {
 	$role->add_cap( 'level_1' );
 	$role->add_cap( 'level_0' );
 
-	// Add caps for Author role
+	// Add caps for Author role.
 	$role = get_role( 'author' );
 	$role->add_cap( 'upload_files' );
 	$role->add_cap( 'edit_posts' );
@@ -777,14 +776,14 @@ function populate_roles_160() {
 	$role->add_cap( 'level_1' );
 	$role->add_cap( 'level_0' );
 
-	// Add caps for Contributor role
+	// Add caps for Contributor role.
 	$role = get_role( 'contributor' );
 	$role->add_cap( 'edit_posts' );
 	$role->add_cap( 'read' );
 	$role->add_cap( 'level_1' );
 	$role->add_cap( 'level_0' );
 
-	// Add caps for Subscriber role
+	// Add caps for Subscriber role.
 	$role = get_role( 'subscriber' );
 	$role->add_cap( 'read' );
 	$role->add_cap( 'level_0' );
@@ -1244,7 +1243,7 @@ We hope you enjoy your new site. Thanks!
 		'welcome_email'               => $welcome_email,
 		/* translators: %s: Site link. */
 		'first_post'                  => __( 'Welcome to %s. This is your first post. Edit or delete it, then start writing!' ),
-		// @todo - network admins should have a method of editing the network siteurl (used for cookie hash)
+		// @todo - Network admins should have a method of editing the network siteurl (used for cookie hash).
 		'siteurl'                     => get_option( 'siteurl' ) . '/',
 		'add_new_users'               => '0',
 		'upload_space_check_disabled' => is_multisite() ? get_site_option( 'upload_space_check_disabled' ) : '1',

wp-admin/includes/screen.php

@@ -117,7 +117,7 @@ function meta_box_prefs( $screen ) {
 				if ( false == $box || ! $box['title'] ) {
 					continue;
 				}
-				// Submit box cannot be hidden
+				// Submit box cannot be hidden.
 				if ( 'submitdiv' == $box['id'] || 'linksubmitdiv' == $box['id'] ) {
 					continue;
 				}
@@ -156,7 +156,7 @@ function get_hidden_meta_boxes( $screen ) {
 
 	$use_defaults = ! is_array( $hidden );
 
-	// Hide slug boxes by default
+	// Hide slug boxes by default.
 	if ( $use_defaults ) {
 		$hidden = array();
 		if ( 'post' == $screen->base ) {

wp-admin/includes/taxonomy.php

@@ -7,7 +7,7 @@
  */
 
 //
-// Category
+// Category.
 //
 
 /**
@@ -192,7 +192,7 @@ function wp_update_category( $catarr ) {
 		return false;
 	}
 
-	// First, get all of the original fields
+	// First, get all of the original fields.
 	$category = get_term( $cat_ID, 'category', ARRAY_A );
 	_make_cat_compat( $category );
 
@@ -206,7 +206,7 @@ function wp_update_category( $catarr ) {
 }
 
 //
-// Tags
+// Tags.
 //
 
 /**

wp-admin/includes/template.php

@@ -15,7 +15,7 @@ require_once( ABSPATH . 'wp-admin/includes/class-walker-category-checklist.php'
 require_once( ABSPATH . 'wp-admin/includes/class-wp-internal-pointers.php' );
 
 //
-// Category Checklists
+// Category Checklists.
 //
 
 /**
@@ -165,7 +165,8 @@ function wp_terms_checklist( $post_id = 0, $args = array() ) {
 	$output = '';
 
 	if ( $parsed_args['checked_ontop'] ) {
-		// Post process $categories rather than adding an exclude to the get_terms() query to keep the query the same across all posts (for any query cache)
+		// Post-process $categories rather than adding an exclude to the get_terms() query
+		// to keep the query the same across all posts (for any query cache).
 		$checked_categories = array();
 		$keys               = array_keys( $categories );
 
@@ -176,10 +177,10 @@ function wp_terms_checklist( $post_id = 0, $args = array() ) {
 			}
 		}
 
-		// Put checked cats on top
+		// Put checked categories on top.
 		$output .= $walker->walk( $checked_categories, 0, $args );
 	}
-	// Then the rest of them
+	// Then the rest of them.
 	$output .= $walker->walk( $categories, 0, $args );
 
 	if ( $parsed_args['echo'] ) {
@@ -265,7 +266,7 @@ function wp_link_category_checklist( $link_id = 0 ) {
 
 	if ( $link_id ) {
 		$checked_categories = wp_get_link_cats( $link_id );
-		// No selected categories, strange
+		// No selected categories, strange.
 		if ( ! count( $checked_categories ) ) {
 			$checked_categories[] = $default;
 		}
@@ -559,7 +560,7 @@ function wp_comment_trashnotice() {
  * @param array $meta
  */
 function list_meta( $meta ) {
-	// Exit if no meta
+	// Exit if no meta.
 	if ( ! $meta ) {
 		echo '
 <table id="list-table" style="display: none;">
@@ -572,7 +573,7 @@ function list_meta( $meta ) {
 	<tbody id="the-list" data-wp-lists="list:meta">
 	<tr><td></td></tr>
 	</tbody>
-</table>'; //TBODY needed for list-manipulation JS
+</table>'; // TBODY needed for list-manipulation JS.
 		return;
 	}
 	$count = 0;
@@ -632,7 +633,7 @@ function _list_meta_row( $entry, &$count ) {
 	}
 
 	$entry['meta_key']   = esc_attr( $entry['meta_key'] );
-	$entry['meta_value'] = esc_textarea( $entry['meta_value'] ); // using a <textarea />
+	$entry['meta_value'] = esc_textarea( $entry['meta_value'] ); // Using a <textarea />.
 	$entry['meta_id']    = (int) $entry['meta_id'];
 
 	$delete_nonce = wp_create_nonce( 'delete-meta_' . $entry['meta_id'] );
@@ -790,7 +791,7 @@ function touch_time( $edit = 1, $for_post = 1, $tab_index = 0, $multi = 0 ) {
 		$tab_index_attribute = " tabindex=\"$tab_index\"";
 	}
 
-	// todo: Remove this?
+	// @todo Remove this?
 	// echo '<label for="timestamp" style="display: block;"><input type="checkbox" class="checkbox" name="edit_date" value="1" id="timestamp"'.$tab_index_attribute.' /> '.__( 'Edit timestamp' ).'</label><br />';
 
 	$post_date = ( $for_post ) ? $post->post_date : get_comment()->comment_date;
@@ -925,7 +926,7 @@ function wp_dropdown_roles( $selected = '' ) {
 
 	foreach ( $editable_roles as $role => $details ) {
 		$name = translate_user_role( $details['name'] );
-		// preselect specified role
+		// Preselect specified role.
 		if ( $selected == $role ) {
 			$r .= "\n\t<option selected='selected' value='" . esc_attr( $role ) . "'>$name</option>";
 		} else {
@@ -1052,7 +1053,7 @@ function add_meta_box( $id, $title, $callback, $screen = null, $context = 'advan
 
 			// If a core box was previously added or removed by a plugin, don't add.
 			if ( 'core' == $priority ) {
-				// If core box previously deleted, don't add
+				// If core box previously deleted, don't add.
 				if ( false === $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ] ) {
 					return;
 				}
@@ -1067,7 +1068,7 @@ function add_meta_box( $id, $title, $callback, $screen = null, $context = 'advan
 				}
 				return;
 			}
-			// If no priority given and id already present, use existing priority.
+			// If no priority given and ID already present, use existing priority.
 			if ( empty( $priority ) ) {
 				$priority = $a_priority;
 				/*
@@ -1079,7 +1080,7 @@ function add_meta_box( $id, $title, $callback, $screen = null, $context = 'advan
 				$callback      = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['callback'];
 				$callback_args = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['args'];
 			}
-			// An id can be in only one priority and one context.
+			// An ID can be in only one priority and one context.
 			if ( $priority != $a_priority || $context != $a_context ) {
 				unset( $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ] );
 			}
@@ -1245,7 +1246,8 @@ function do_meta_boxes( $screen, $context, $object ) {
 
 	printf( '<div id="%s-sortables" class="meta-box-sortables">', esc_attr( $context ) );
 
-	// Grab the ones the user has manually sorted. Pull them out of their previous context/priority and into the one the user chose
+	// Grab the ones the user has manually sorted.
+	// Pull them out of their previous context/priority and into the one the user chose.
 	$sorted = get_user_option( "meta-box-order_$page" );
 	if ( ! $already_sorted && $sorted ) {
 		foreach ( $sorted as $box_context => $ids ) {
@@ -2192,12 +2194,12 @@ function _media_states( $post ) {
 		} else {
 			$header_image = get_header_image();
 
-			// Display "Header Image" if the image was ever used as a header image
+			// Display "Header Image" if the image was ever used as a header image.
 			if ( ! empty( $meta_header ) && $meta_header == $stylesheet && $header_image !== wp_get_attachment_url( $post->ID ) ) {
 				$media_states[] = __( 'Header Image' );
 			}
 
-			// Display "Current Header Image" if the image is currently the header image
+			// Display "Current Header Image" if the image is currently the header image.
 			if ( $header_image && $header_image == wp_get_attachment_url( $post->ID ) ) {
 				$media_states[] = __( 'Current Header Image' );
 			}
@@ -2378,7 +2380,7 @@ function get_submit_button( $text = '', $type = 'primary large', $name = 'submit
 
 	$text = $text ? $text : __( 'Save Changes' );
 
-	// Default the id attribute to $name unless an id was specifically provided in $other_attributes
+	// Default the id attribute to $name unless an id was specifically provided in $other_attributes.
 	$id = $name;
 	if ( is_array( $other_attributes ) && isset( $other_attributes['id'] ) ) {
 		$id = $other_attributes['id'];
@@ -2388,9 +2390,9 @@ function get_submit_button( $text = '', $type = 'primary large', $name = 'submit
 	$attributes = '';
 	if ( is_array( $other_attributes ) ) {
 		foreach ( $other_attributes as $attribute => $value ) {
-			$attributes .= $attribute . '="' . esc_attr( $value ) . '" '; // Trailing space is important
+			$attributes .= $attribute . '="' . esc_attr( $value ) . '" '; // Trailing space is important.
 		}
-	} elseif ( ! empty( $other_attributes ) ) { // Attributes provided as a string
+	} elseif ( ! empty( $other_attributes ) ) { // Attributes provided as a string.
 		$attributes = $other_attributes;
 	}
 
@@ -2533,15 +2535,15 @@ function wp_star_rating( $args = array() ) {
 	);
 	$parsed_args = wp_parse_args( $args, $defaults );
 
-	// Non-English decimal places when the $rating is coming from a string
+	// Non-English decimal places when the $rating is coming from a string.
 	$rating = (float) str_replace( ',', '.', $parsed_args['rating'] );
 
-	// Convert Percentage to star rating, 0..5 in .5 increments
+	// Convert percentage to star rating, 0..5 in .5 increments.
 	if ( 'percent' === $parsed_args['type'] ) {
 		$rating = round( $rating / 10, 0 ) / 2;
 	}
 
-	// Calculate the number of each type of star needed
+	// Calculate the number of each type of star needed.
 	$full_stars  = floor( $rating );
 	$half_stars  = ceil( $rating - $full_stars );
 	$empty_stars = 5 - $full_stars - $half_stars;

wp-admin/includes/theme.php

@@ -45,7 +45,8 @@ function delete_theme( $stylesheet, $redirect = '' ) {
 
 	if ( ! WP_Filesystem( $credentials ) ) {
 		ob_start();
-		request_filesystem_credentials( $redirect, '', true ); // Failed to connect, Error and request again.
+		// Failed to connect. Error and request again.
+		request_filesystem_credentials( $redirect, '', true );
 		$data = ob_get_clean();
 
 		if ( ! empty( $data ) ) {
@@ -194,7 +195,7 @@ function get_theme_update_available( $theme ) {
 				'height'    => 800,
 			),
 			$update['url']
-		); //Theme browser inside WP? replace this, Also, theme preview JS will override this on the available list.
+		); // Theme browser inside WP? Replace this. Also, theme preview JS will override this on the available list.
 		$update_url  = wp_nonce_url( admin_url( 'update.php?action=upgrade-theme&theme=' . urlencode( $stylesheet ) ), 'upgrade-theme_' . $stylesheet );
 
 		if ( ! is_multisite() ) {
@@ -260,7 +261,7 @@ function get_theme_update_available( $theme ) {
  * @return array Array of features keyed by category with translations keyed by slug.
  */
 function get_theme_feature_list( $api = true ) {
-	// Hard-coded list is used if api not accessible.
+	// Hard-coded list is used if API is not accessible.
 	$features = array(
 
 		__( 'Subject' )  => array(
@@ -331,7 +332,7 @@ function get_theme_feature_list( $api = true ) {
 		'Subject'  => __( 'Subject' ),
 	);
 
-	// Loop over the wporg canonical list and apply translations
+	// Loop over the wp.org canonical list and apply translations.
 	$wporg_features = array();
 	foreach ( (array) $feature_list as $feature_category => $feature_items ) {
 		if ( isset( $category_translations[ $feature_category ] ) ) {
@@ -433,7 +434,7 @@ function get_theme_feature_list( $api = true ) {
  *         for more information on the make-up of possible return objects depending on the value of `$action`.
  */
 function themes_api( $action, $args = array() ) {
-	// include an unmodified $wp_version
+	// Include an unmodified $wp_version.
 	include( ABSPATH . WPINC . '/version.php' );
 
 	if ( is_array( $args ) ) {
@@ -451,7 +452,7 @@ function themes_api( $action, $args = array() ) {
 	}
 
 	if ( ! isset( $args->wp_version ) ) {
-		$args->wp_version = substr( $wp_version, 0, 3 ); // X.y
+		$args->wp_version = substr( $wp_version, 0, 3 ); // x.y
 	}
 
 	/**
@@ -655,7 +656,7 @@ function wp_prepare_themes_for_js( $themes = null ) {
 		$prepared_themes[ $slug ] = array(
 			'id'           => $slug,
 			'name'         => $theme->display( 'Name' ),
-			'screenshot'   => array( $theme->get_screenshot() ), // @todo multiple
+			'screenshot'   => array( $theme->get_screenshot() ), // @todo Multiple screenshots.
 			'description'  => $theme->display( 'Description' ),
 			'author'       => $theme->display( 'Author', false, true ),
 			'authorAndUri' => $theme->display( 'Author' ),
@@ -674,7 +675,7 @@ function wp_prepare_themes_for_js( $themes = null ) {
 		);
 	}
 
-	// Remove 'delete' action if theme has an active child
+	// Remove 'delete' action if theme has an active child.
 	if ( ! empty( $parents ) && array_key_exists( $current_theme, $parents ) ) {
 		unset( $prepared_themes[ $parents[ $current_theme ] ]['actions']['delete'] );
 	}

wp-admin/includes/translation-install.php

@@ -17,7 +17,8 @@
  * @return object|WP_Error On success an object of translations, WP_Error on failure.
  */
 function translations_api( $type, $args = null ) {
-	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
+	// Include an unmodified $wp_version.
+	include( ABSPATH . WPINC . '/version.php' );
 
 	if ( ! in_array( $type, array( 'plugins', 'themes', 'core' ) ) ) {
 		return  new WP_Error( 'invalid_type', __( 'Invalid translation type.' ) );
@@ -47,12 +48,12 @@ function translations_api( $type, $args = null ) {
 			'body'    => array(
 				'wp_version' => $wp_version,
 				'locale'     => get_locale(),
-				'version'    => $args['version'], // Version of plugin, theme or core
+				'version'    => $args['version'], // Version of plugin, theme or core.
 			),
 		);
 
 		if ( 'core' !== $type ) {
-			$options['body']['slug'] = $args['slug']; // Plugin or theme slug
+			$options['body']['slug'] = $args['slug']; // Plugin or theme slug.
 		}
 
 		$request = wp_remote_post( $url, $options );
@@ -126,7 +127,8 @@ function wp_get_available_translations() {
 		}
 	}
 
-	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
+	// Include an unmodified $wp_version.
+	include( ABSPATH . WPINC . '/version.php' );
 
 	$api = translations_api( 'core', array( 'version' => $wp_version ) );
 

wp-admin/includes/update-core.php

@@ -253,7 +253,7 @@ $_old_files = array(
 	'wp-includes/js/jquery/autocomplete.js',
 	'wp-includes/js/jquery/interface.js',
 	'wp-includes/js/scriptaculous/prototype.js',
-	// Following file added back in 5.1 see #45645
+	// Following file added back in 5.1, see #45645.
 	//'wp-includes/js/tinymce/wp-tinymce.js',
 	// 3.1
 	'wp-admin/edit-attachment-rows.php',
@@ -536,7 +536,7 @@ $_old_files = array(
 	'wp-admin/images/screenshots/twitter-embed-1.png',
 	'wp-admin/images/screenshots/twitter-embed-2.png',
 	'wp-admin/js/utils.js',
-	// Added back in 5.3 [45448], see #43895
+	// Added back in 5.3 [45448], see #43895.
 	// 'wp-admin/options-privacy.php',
 	'wp-app.php',
 	'wp-includes/class-wp-atom-server.php',
@@ -600,7 +600,7 @@ $_old_files = array(
 	'wp-admin/css/colors.min.css',
 	'wp-admin/css/colors-rtl.css',
 	'wp-admin/css/colors-rtl.min.css',
-	// Following files added back in 4.5 see #36083
+	// Following files added back in 4.5, see #36083.
 	// 'wp-admin/css/media-rtl.min.css',
 	// 'wp-admin/css/media.min.css',
 	// 'wp-admin/css/farbtastic-rtl.min.css',
@@ -615,7 +615,7 @@ $_old_files = array(
 	'wp-includes/js/plupload/changelog.txt',
 	'wp-includes/js/plupload/plupload.silverlight.js',
 	'wp-includes/js/plupload/plupload.flash.js',
-	// Added back in 4.9 [41328], see #41755
+	// Added back in 4.9 [41328], see #41755.
 	// 'wp-includes/js/plupload/plupload.js',
 	'wp-includes/js/tinymce/plugins/spellchecker',
 	'wp-includes/js/tinymce/plugins/inlinepopups',
@@ -938,8 +938,8 @@ function update_core( $from, $to ) {
 
 	$php_version       = phpversion();
 	$mysql_version     = $wpdb->db_version();
-	$old_wp_version    = $GLOBALS['wp_version']; // The version of WordPress we're updating from
+	$old_wp_version    = $GLOBALS['wp_version']; // The version of WordPress we're updating from.
-	$development_build = ( false !== strpos( $old_wp_version . $wp_version, '-' ) ); // a dash in the version indicates a Development release
+	$development_build = ( false !== strpos( $old_wp_version . $wp_version, '-' ) ); // A dash in the version indicates a development release.
 	$php_compat        = version_compare( $php_version, $required_php_version, '>=' );
 	if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) {
 		$mysql_compat = true;
@@ -1017,19 +1017,19 @@ function update_core( $from, $to ) {
 	/** This filter is documented in wp-admin/includes/update-core.php */
 	apply_filters( 'update_feedback', __( 'Preparing to install the latest version…' ) );
 
-	// Don't copy wp-content, we'll deal with that below
+	// Don't copy wp-content, we'll deal with that below.
-	// We also copy version.php last so failed updates report their old version
+	// We also copy version.php last so failed updates report their old version.
 	$skip              = array( 'wp-content', 'wp-includes/version.php' );
 	$check_is_writable = array();
 
-	// Check to see which files don't really need updating - only available for 3.7 and higher
+	// Check to see which files don't really need updating - only available for 3.7 and higher.
 	if ( function_exists( 'get_core_checksums' ) ) {
-		// Find the local version of the working directory
+		// Find the local version of the working directory.
 		$working_dir_local = WP_CONTENT_DIR . '/upgrade/' . basename( $from ) . $distro;
 
 		$checksums = get_core_checksums( $wp_version, isset( $wp_local_package ) ? $wp_local_package : 'en_US' );
 		if ( is_array( $checksums ) && isset( $checksums[ $wp_version ] ) ) {
-			$checksums = $checksums[ $wp_version ]; // Compat code for 3.7-beta2
+			$checksums = $checksums[ $wp_version ]; // Compat code for 3.7-beta2.
 		}
 		if ( is_array( $checksums ) ) {
 			foreach ( $checksums as $file => $checksum ) {
@@ -1078,7 +1078,7 @@ function update_core( $from, $to ) {
 
 	/** This filter is documented in wp-admin/includes/update-core.php */
 	apply_filters( 'update_feedback', __( 'Enabling Maintenance mode…' ) );
-	// Create maintenance file to signal that we are upgrading
+	// Create maintenance file to signal that we are upgrading.
 	$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
 	$maintenance_file   = $to . '.maintenance';
 	$wp_filesystem->delete( $maintenance_file );
@@ -1092,7 +1092,7 @@ function update_core( $from, $to ) {
 		$result = new WP_Error( $result->get_error_code(), $result->get_error_message(), substr( $result->get_error_data(), strlen( $to ) ) );
 	}
 
-	// Since we know the core files have copied over, we can now copy the version file
+	// Since we know the core files have copied over, we can now copy the version file.
 	if ( ! is_wp_error( $result ) ) {
 		if ( ! $wp_filesystem->copy( $from . $distro . 'wp-includes/version.php', $to . 'wp-includes/version.php', true /* overwrite */ ) ) {
 			$wp_filesystem->delete( $from, true );
@@ -1101,7 +1101,7 @@ function update_core( $from, $to ) {
 		$wp_filesystem->chmod( $to . 'wp-includes/version.php', FS_CHMOD_FILE );
 	}
 
-	// Check to make sure everything copied correctly, ignoring the contents of wp-content
+	// Check to make sure everything copied correctly, ignoring the contents of wp-content.
 	$skip   = array( 'wp-content' );
 	$failed = array();
 	if ( isset( $checksums ) && is_array( $checksums ) ) {
@@ -1124,7 +1124,7 @@ function update_core( $from, $to ) {
 		}
 	}
 
-	// Some files didn't copy properly
+	// Some files didn't copy properly.
 	if ( ! empty( $failed ) ) {
 		$total_size = 0;
 		foreach ( $failed as $file ) {
@@ -1146,8 +1146,8 @@ function update_core( $from, $to ) {
 		}
 	}
 
-	// Custom Content Directory needs updating now.
+	// Custom content directory needs updating now.
-	// Copy Languages
+	// Copy languages.
 	if ( ! is_wp_error( $result ) && $wp_filesystem->is_dir( $from . $distro . 'wp-content/languages' ) ) {
 		if ( WP_LANG_DIR != ABSPATH . WPINC . '/languages' || @is_dir( WP_LANG_DIR ) ) {
 			$lang_dir = WP_LANG_DIR;
@@ -1155,9 +1155,11 @@ function update_core( $from, $to ) {
 			$lang_dir = WP_CONTENT_DIR . '/languages';
 		}
 
-		if ( ! @is_dir( $lang_dir ) && 0 === strpos( $lang_dir, ABSPATH ) ) { // Check the language directory exists first
+		// Check if the language directory exists first.
-			$wp_filesystem->mkdir( $to . str_replace( ABSPATH, '', $lang_dir ), FS_CHMOD_DIR ); // If it's within the ABSPATH we can handle it here, otherwise they're out of luck.
+		if ( ! @is_dir( $lang_dir ) && 0 === strpos( $lang_dir, ABSPATH ) ) {
-			clearstatcache(); // for FTP, Need to clear the stat cache
+			// If it's within the ABSPATH we can handle it here, otherwise they're out of luck.
+			$wp_filesystem->mkdir( $to . str_replace( ABSPATH, '', $lang_dir ), FS_CHMOD_DIR );
+			clearstatcache(); // For FTP, need to clear the stat cache.
 		}
 
 		if ( @is_dir( $lang_dir ) ) {
@@ -1173,7 +1175,7 @@ function update_core( $from, $to ) {
 
 	/** This filter is documented in wp-admin/includes/update-core.php */
 	apply_filters( 'update_feedback', __( 'Disabling Maintenance mode&#8230;' ) );
-	// Remove maintenance file, we're done with potential site-breaking changes
+	// Remove maintenance file, we're done with potential site-breaking changes.
 	$wp_filesystem->delete( $maintenance_file );
 
 	// 3.5 -> 3.5+ - an empty twentytwelve directory was created upon upgrade to 3.5 for some users, preventing installation of Twenty Twelve.
@@ -1183,17 +1185,20 @@ function update_core( $from, $to ) {
 		}
 	}
 
-	// Copy New bundled plugins & themes
+	/*
-	// This gives us the ability to install new plugins & themes bundled with future versions of WordPress whilst avoiding the re-install upon upgrade issue.
+	 * Copy new bundled plugins & themes.
-	// $development_build controls us overwriting bundled themes and plugins when a non-stable release is being updated
+	 * This gives us the ability to install new plugins & themes bundled with
+	 * future versions of WordPress whilst avoiding the re-install upon upgrade issue.
+	 * $development_build controls us overwriting bundled themes and plugins when a non-stable release is being updated.
+	 */
 	if ( ! is_wp_error( $result ) && ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) ) {
 		foreach ( (array) $_new_bundled_files as $file => $introduced_version ) {
-			// If a $development_build or if $introduced version is greater than what the site was previously running
+			// If a $development_build or if $introduced version is greater than what the site was previously running.
 			if ( $development_build || version_compare( $introduced_version, $old_wp_version, '>' ) ) {
 				$directory             = ( '/' == $file[ strlen( $file ) - 1 ] );
 				list($type, $filename) = explode( '/', $file, 2 );
 
-				// Check to see if the bundled items exist before attempting to copy them
+				// Check to see if the bundled items exist before attempting to copy them.
 				if ( ! $wp_filesystem->exists( $from . $distro . 'wp-content/' . $file ) ) {
 					continue;
 				}
@@ -1201,7 +1206,8 @@ function update_core( $from, $to ) {
 				if ( 'plugins' == $type ) {
 					$dest = $wp_filesystem->wp_plugins_dir();
 				} elseif ( 'themes' == $type ) {
-					$dest = trailingslashit( $wp_filesystem->wp_themes_dir() ); // Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2
+					// Back-compat, ::wp_themes_dir() did not return trailingslash'd pre-3.2.
+					$dest = trailingslashit( $wp_filesystem->wp_themes_dir() );
 				} else {
 					continue;
 				}
@@ -1231,16 +1237,16 @@ function update_core( $from, $to ) {
 					}
 				}
 			}
-		} //end foreach
+		} // End foreach.
 	}
 
-	// Handle $result error from the above blocks
+	// Handle $result error from the above blocks.
 	if ( is_wp_error( $result ) ) {
 		$wp_filesystem->delete( $from, true );
 		return $result;
 	}
 
-	// Remove old files
+	// Remove old files.
 	foreach ( $_old_files as $old_file ) {
 		$old_file = $to . $old_file;
 		if ( ! $wp_filesystem->exists( $old_file ) ) {
@@ -1253,27 +1259,27 @@ function update_core( $from, $to ) {
 		}
 	}
 
-	// Remove any Genericons example.html's from the filesystem
+	// Remove any Genericons example.html's from the filesystem.
 	_upgrade_422_remove_genericons();
 
-	// Remove the REST API plugin if its version is Beta 4 or lower
+	// Remove the REST API plugin if its version is Beta 4 or lower.
 	_upgrade_440_force_deactivate_incompatible_plugins();
 
-	// Upgrade DB with separate request
+	// Upgrade DB with separate request.
 	/** This filter is documented in wp-admin/includes/update-core.php */
 	apply_filters( 'update_feedback', __( 'Upgrading database&#8230;' ) );
 	$db_upgrade_url = admin_url( 'upgrade.php?step=upgrade_db' );
 	wp_remote_post( $db_upgrade_url, array( 'timeout' => 60 ) );
 
-	// Clear the cache to prevent an update_option() from saving a stale db_version to the cache
+	// Clear the cache to prevent an update_option() from saving a stale db_version to the cache.
 	wp_cache_flush();
-	// (Not all cache back ends listen to 'flush')
+	// Not all cache back ends listen to 'flush'.
 	wp_cache_delete( 'alloptions', 'options' );
 
-	// Remove working directory
+	// Remove working directory.
 	$wp_filesystem->delete( $from, true );
 
-	// Force refresh of update information
+	// Force refresh of update information.
 	if ( function_exists( 'delete_site_transient' ) ) {
 		delete_site_transient( 'update_core' );
 	} else {
@@ -1396,7 +1402,7 @@ function _redirect_to_about_wordpress( $new_version ) {
 	// Load the updated default text localization domain for new strings.
 	load_default_textdomain();
 
-	// See do_core_upgrade()
+	// See do_core_upgrade().
 	show_message( __( 'WordPress updated successfully' ) );
 
 	// self_admin_url() won't exist when upgrading from <= 3.0, so relative URLs are intentional.
@@ -1442,13 +1448,13 @@ function _upgrade_422_remove_genericons() {
 	// A list of the affected files using the filesystem absolute paths.
 	$affected_files = array();
 
-	// Themes
+	// Themes.
 	foreach ( $wp_theme_directories as $directory ) {
 		$affected_theme_files = _upgrade_422_find_genericons_files_in_folder( $directory );
 		$affected_files       = array_merge( $affected_files, $affected_theme_files );
 	}
 
-	// Plugins
+	// Plugins.
 	$affected_plugin_files = _upgrade_422_find_genericons_files_in_folder( WP_PLUGIN_DIR );
 	$affected_files        = array_merge( $affected_files, $affected_plugin_files );
 
@@ -1458,7 +1464,7 @@ function _upgrade_422_remove_genericons() {
 			continue;
 		}
 
-		// The path when the file is accessed via WP_Filesystem may differ in the case of FTP
+		// The path when the file is accessed via WP_Filesystem may differ in the case of FTP.
 		$remote_file = $gen_dir . basename( $file );
 
 		if ( ! $wp_filesystem->exists( $remote_file ) ) {

wp-admin/includes/update.php

@@ -723,7 +723,8 @@ function wp_theme_update_row( $theme_key, $theme ) {
  * @return void|false
  */
 function maintenance_nag() {
-	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
+	// Include an unmodified $wp_version.
+	include( ABSPATH . WPINC . '/version.php' );
 	global $upgrading;
 	$nag = isset( $upgrading );
 	if ( ! $nag ) {

wp-admin/includes/upgrade.php

@@ -154,7 +154,7 @@ if ( ! function_exists( 'wp_install_defaults' ) ) :
 	function wp_install_defaults( $user_id ) {
 		global $wpdb, $wp_rewrite, $table_prefix;
 
-		// Default category
+		// Default category.
 		$cat_name = __( 'Uncategorized' );
 		/* translators: Default category slug. */
 		$cat_slug = sanitize_title( _x( 'Uncategorized', 'Default category slug' ) );
@@ -199,7 +199,7 @@ if ( ! function_exists( 'wp_install_defaults' ) ) :
 		);
 		$cat_tt_id = $wpdb->insert_id;
 
-		// First post
+		// First post.
 		$now             = current_time( 'mysql' );
 		$now_gmt         = current_time( 'mysql', 1 );
 		$first_post_guid = get_option( 'home' ) . '/?p=1';
@@ -219,7 +219,7 @@ if ( ! function_exists( 'wp_install_defaults' ) ) :
 				sprintf( '<a href="%s">%s</a>', esc_url( network_home_url() ), get_network()->site_name )
 			);
 
-			// Back-compat for pre-4.4
+			// Back-compat for pre-4.4.
 			$first_post = str_replace( 'SITE_URL', esc_url( network_home_url() ), $first_post );
 			$first_post = str_replace( 'SITE_NAME', get_network()->site_name, $first_post );
 		} else {
@@ -257,7 +257,7 @@ if ( ! function_exists( 'wp_install_defaults' ) ) :
 			)
 		);
 
-		// Default comment
+		// Default comment.
 		if ( is_multisite() ) {
 			$first_comment_author = get_site_option( 'first_comment_author' );
 			$first_comment_email  = get_site_option( 'first_comment_email' );
@@ -286,7 +286,7 @@ Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.'
 			)
 		);
 
-		// First Page
+		// First page.
 		if ( is_multisite() ) {
 			$first_page = get_site_option( 'first_page' );
 		}
@@ -352,7 +352,7 @@ Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.'
 			)
 		);
 
-		// Privacy Policy page
+		// Privacy Policy page.
 		if ( is_multisite() ) {
 			// Disable by default unless the suggested content is provided.
 			$privacy_policy_content = get_site_option( 'default_privacy_policy_content' );
@@ -493,7 +493,8 @@ Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.'
 			$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix . 'user_level' ) );
 			$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix . 'capabilities' ) );
 
-			// Delete any caps that snuck into the previously active blog. (Hardcoded to blog 1 for now.) TODO: Get previous_blog_id.
+			// Delete any caps that snuck into the previously active blog. (Hardcoded to blog 1 for now.)
+			// TODO: Get previous_blog_id.
 			if ( ! is_super_admin( $user_id ) && $user_id != 1 ) {
 				$wpdb->delete(
 					$wpdb->usermeta,
@@ -550,7 +551,7 @@ function wp_install_maybe_enable_pretty_permalinks() {
 
 		$test_url = '';
 
-		// Test against a real WordPress Post
+		// Test against a real WordPress post.
 		$first_post = get_page_by_path( sanitize_title( _x( 'hello-world', 'Default post slug' ) ), OBJECT, 'post' );
 		if ( $first_post ) {
 			$test_url = get_permalink( $first_post->ID );
@@ -852,7 +853,7 @@ function upgrade_all() {
 function upgrade_100() {
 	global $wpdb;
 
-	// Get the title and ID of every post, post_name to check if it already has a value
+	// Get the title and ID of every post, post_name to check if it already has a value.
 	$posts = $wpdb->get_results( "SELECT ID, post_title, post_name FROM $wpdb->posts WHERE post_name = ''" );
 	if ( $posts ) {
 		foreach ( $posts as $post ) {
@@ -891,9 +892,9 @@ function upgrade_100() {
 	$allposts = $wpdb->get_results( "SELECT ID, post_category FROM $wpdb->posts WHERE post_category != '0' $catwhere" );
 	if ( $allposts ) :
 		foreach ( $allposts as $post ) {
-			// Check to see if it's already been imported
+			// Check to see if it's already been imported.
 			$cat = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->post2cat WHERE post_id = %d AND category_id = %d", $post->ID, $post->post_category ) );
-			if ( ! $cat && 0 != $post->post_category ) { // If there's no result
+			if ( ! $cat && 0 != $post->post_category ) { // If there's no result.
 				$wpdb->insert(
 					$wpdb->post2cat,
 					array(
@@ -917,7 +918,7 @@ function upgrade_100() {
 function upgrade_101() {
 	global $wpdb;
 
-	// Clean up indices, add a few
+	// Clean up indices, add a few.
 	add_clean_index( $wpdb->posts, 'post_name' );
 	add_clean_index( $wpdb->posts, 'post_status' );
 	add_clean_index( $wpdb->categories, 'category_nicename' );
@@ -954,7 +955,7 @@ function upgrade_110() {
 		}
 	}
 
-	// Get the GMT offset, we'll use that later on
+	// Get the GMT offset, we'll use that later on.
 	$all_options = get_alloptions_110();
 
 	$time_difference = $all_options->time_difference;
@@ -968,17 +969,19 @@ function upgrade_110() {
 	$diff_gmt_weblogger    = $diff_gmt_server - $diff_weblogger_server;
 	$gmt_offset            = -$diff_gmt_weblogger;
 
-	// Add a gmt_offset option, with value $gmt_offset
+	// Add a gmt_offset option, with value $gmt_offset.
 	add_option( 'gmt_offset', $gmt_offset );
 
-	// Check if we already set the GMT fields (if we did, then
+	/*
-	// MAX(post_date_gmt) can't be '0000-00-00 00:00:00'
+	 * Check if we already set the GMT fields. If we did, then
-	// <michel_v> I just slapped myself silly for not thinking about it earlier
+	 * MAX(post_date_gmt) can't be '0000-00-00 00:00:00'.
+	 * <michel_v> I just slapped myself silly for not thinking about it earlier.
+	 */
 	$got_gmt_fields = ! ( $wpdb->get_var( "SELECT MAX(post_date_gmt) FROM $wpdb->posts" ) == '0000-00-00 00:00:00' );
 
 	if ( ! $got_gmt_fields ) {
 
-		// Add or subtract time to all dates, to get GMT dates
+		// Add or subtract time to all dates, to get GMT dates.
 		$add_hours   = intval( $diff_gmt_weblogger );
 		$add_minutes = intval( 60 * ( $diff_gmt_weblogger - $add_hours ) );
 		$wpdb->query( "UPDATE $wpdb->posts SET post_date_gmt = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)" );
@@ -1052,17 +1055,17 @@ function upgrade_130() {
 		update_option( 'active_plugins', $active_plugins );
 	}
 
-	// Obsolete tables
+	// Obsolete tables.
 	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optionvalues' );
 	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiontypes' );
 	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroups' );
 	$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroup_options' );
 
-	// Update comments table to use comment_type
+	// Update comments table to use comment_type.
 	$wpdb->query( "UPDATE $wpdb->comments SET comment_type='trackback', comment_content = REPLACE(comment_content, '<trackback />', '') WHERE comment_content LIKE '<trackback />%'" );
 	$wpdb->query( "UPDATE $wpdb->comments SET comment_type='pingback', comment_content = REPLACE(comment_content, '<pingback />', '') WHERE comment_content LIKE '<pingback />%'" );
 
-	// Some versions have multiple duplicate option_name rows with the same values
+	// Some versions have multiple duplicate option_name rows with the same values.
 	$options = $wpdb->get_results( "SELECT option_name, COUNT(option_name) AS dupes FROM `$wpdb->options` GROUP BY option_name" );
 	foreach ( $options as $option ) {
 		if ( 1 != $option->dupes ) { // Could this be done in the query?
@@ -1370,7 +1373,7 @@ function upgrade_230() {
 	if ( $wp_current_db_version < 3570 ) {
 		/*
 		 * Create link_category terms for link categories. Create a map of link
-		 * cat IDs to link_category terms.
+		 * category IDs to link_category terms.
 		 */
 		$link_cat_id_map  = array();
 		$default_link_cat = 0;
@@ -1411,7 +1414,7 @@ function upgrade_230() {
 			$tt_ids[ $term_id ] = (int) $wpdb->insert_id;
 		}
 
-		// Associate links to cats.
+		// Associate links to categories.
 		$links = $wpdb->get_results( "SELECT link_id, link_category FROM $wpdb->links" );
 		if ( ! empty( $links ) ) {
 			foreach ( $links as $link ) {
@@ -1460,11 +1463,11 @@ function upgrade_230() {
 	}
 
 	if ( $wp_current_db_version < 4772 ) {
-		// Obsolete linkcategories table
+		// Obsolete linkcategories table.
 		$wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'linkcategories' );
 	}
 
-	// Recalculate all counts
+	// Recalculate all counts.
 	$terms = $wpdb->get_results( "SELECT term_taxonomy_id, taxonomy FROM $wpdb->term_taxonomy" );
 	foreach ( (array) $terms as $term ) {
 		if ( ( 'post_tag' == $term->taxonomy ) || ( 'category' == $term->taxonomy ) ) {
@@ -1586,7 +1589,7 @@ function upgrade_270() {
 		populate_roles_270();
 	}
 
-	// Update post_date for unpublished posts with empty timestamp
+	// Update post_date for unpublished posts with empty timestamp.
 	if ( $wp_current_db_version < 8921 ) {
 		$wpdb->query( "UPDATE $wpdb->posts SET post_date = post_modified WHERE post_date = '0000-00-00 00:00:00'" );
 	}
@@ -1637,7 +1640,8 @@ function upgrade_290() {
 	global $wp_current_db_version;
 
 	if ( $wp_current_db_version < 11958 ) {
-		// Previously, setting depth to 1 would redundantly disable threading, but now 2 is the minimum depth to avoid confusion
+		// Previously, setting depth to 1 would redundantly disable threading,
+		// but now 2 is the minimum depth to avoid confusion.
 		if ( get_option( 'thread_comments_depth' ) == '1' ) {
 			update_option( 'thread_comments_depth', 2 );
 			update_option( 'thread_comments', 0 );
@@ -1769,7 +1773,7 @@ function upgrade_330() {
 			$sidebars_widgets                   = $_sidebars_widgets;
 			unset( $_sidebars_widgets );
 
-			// intentional fall-through to upgrade to the next version.
+			// Intentional fall-through to upgrade to the next version.
 		case 2:
 			$sidebars_widgets                  = retrieve_widgets();
 			$sidebars_widgets['array_version'] = 3;
@@ -1827,7 +1831,7 @@ function upgrade_350() {
 	global $wp_current_db_version, $wpdb;
 
 	if ( $wp_current_db_version < 22006 && $wpdb->get_var( "SELECT link_id FROM $wpdb->links LIMIT 1" ) ) {
-		update_option( 'link_manager_enabled', 1 ); // Previously set to 0 by populate_options()
+		update_option( 'link_manager_enabled', 1 ); // Previously set to 0 by populate_options().
 	}
 
 	if ( $wp_current_db_version < 21811 && wp_should_upgrade_global_tables() ) {
@@ -2021,7 +2025,7 @@ function upgrade_430_fix_comments() {
  * @since 4.3.1
  */
 function upgrade_431() {
-	// Fix incorrect cron entries for term splitting
+	// Fix incorrect cron entries for term splitting.
 	$cron_array = _get_cron_array();
 	if ( isset( $cron_array['wp_batch_split_terms'] ) ) {
 		unset( $cron_array['wp_batch_split_terms'] );
@@ -2138,11 +2142,13 @@ function upgrade_510() {
  * @since 5.3.0
  */
 function upgrade_530() {
-	// The `admin_email_lifespan` option may have been set by an admin that just logged in,
+	/*
-	// saw the verification screen, clicked on a button there, and is now upgrading the db,
+	 * The `admin_email_lifespan` option may have been set by an admin that just logged in,
-	// or by populate_options() that is called earlier in upgrade_all().
+	 * saw the verification screen, clicked on a button there, and is now upgrading the db,
-	// In the second case `admin_email_lifespan` should be reset so the verification screen
+	 * or by populate_options() that is called earlier in upgrade_all().
-	// is shown next time an admin logs in.
+	 * In the second case `admin_email_lifespan` should be reset so the verification screen
+	 * is shown next time an admin logs in.
+	 */
 	if ( function_exists( 'current_user_can' ) && ! current_user_can( 'manage_options' ) ) {
 		update_option( 'admin_email_lifespan', 0 );
 	}
@@ -2159,10 +2165,10 @@ function upgrade_530() {
 function upgrade_network() {
 	global $wp_current_db_version, $wpdb;
 
-	// Always clear expired transients
+	// Always clear expired transients.
 	delete_expired_transients( true );
 
-	// 2.8.
+	// 2.8
 	if ( $wp_current_db_version < 11549 ) {
 		$wpmu_sitewide_plugins   = get_site_option( 'wpmu_sitewide_plugins' );
 		$active_sitewide_plugins = get_site_option( 'active_sitewide_plugins' );
@@ -2301,7 +2307,7 @@ function upgrade_network() {
 }
 
 //
-// General functions we use to actually do stuff
+// General functions we use to actually do stuff.
 //
 
 /**
@@ -2328,7 +2334,7 @@ function maybe_create_table( $table_name, $create_ddl ) {
 		return true;
 	}
 
-	// Didn't find it try to create it..
+	// Didn't find it, so try to create it.
 	$wpdb->query( $create_ddl );
 
 	// We cannot directly tell that whether this succeeded!
@@ -2353,7 +2359,7 @@ function drop_index( $table, $index ) {
 	global $wpdb;
 	$wpdb->hide_errors();
 	$wpdb->query( "ALTER TABLE `$table` DROP INDEX `$index`" );
-	// Now we need to take out all the extra ones we may have created
+	// Now we need to take out all the extra ones we may have created.
 	for ( $i = 0; $i < 25; $i++ ) {
 		$wpdb->query( "ALTER TABLE `$table` DROP INDEX `{$index}_$i`" );
 	}
@@ -2399,7 +2405,7 @@ function maybe_add_column( $table_name, $column_name, $create_ddl ) {
 		}
 	}
 
-	// Didn't find it try to create it.
+	// Didn't find it, so try to create it.
 	$wpdb->query( $create_ddl );
 
 	// We cannot directly tell that whether this succeeded!
@@ -2566,7 +2572,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 		$queries = wp_get_db_schema( $queries );
 	}
 
-	// Separate individual queries into an array
+	// Separate individual queries into an array.
 	if ( ! is_array( $queries ) ) {
 		$queries = explode( ';', $queries );
 		$queries = array_filter( $queries );
@@ -2581,11 +2587,11 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 	 */
 	$queries = apply_filters( 'dbdelta_queries', $queries );
 
-	$cqueries   = array(); // Creation Queries
+	$cqueries   = array(); // Creation queries.
-	$iqueries   = array(); // Insertion Queries
+	$iqueries   = array(); // Insertion queries.
 	$for_update = array();
 
-	// Create a tablename index for an array ($cqueries) of queries
+	// Create a tablename index for an array ($cqueries) of queries.
 	foreach ( $queries as $qry ) {
 		if ( preg_match( '|CREATE TABLE ([^ ]*)|', $qry, $matches ) ) {
 			$cqueries[ trim( $matches[1], '`' ) ] = $qry;
@@ -2597,7 +2603,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 		} elseif ( preg_match( '|UPDATE ([^ ]*)|', $qry, $matches ) ) {
 			$iqueries[] = $qry;
 		} else {
-			// Unrecognized query type
+			// Unrecognized query type.
 		}
 	}
 
@@ -2634,7 +2640,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 			continue;
 		}
 
-		// Fetch the table column structure from the database
+		// Fetch the table column structure from the database.
 		$suppress    = $wpdb->suppress_errors();
 		$tablefields = $wpdb->get_results( "DESCRIBE {$table};" );
 		$wpdb->suppress_errors( $suppress );
@@ -2808,6 +2814,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 					if ( $do_change ) {
 						// Add a query to change the column type.
 						$cqueries[] = "ALTER TABLE {$table} CHANGE COLUMN `{$tablefield->Field}` " . $cfields[ $tablefield_field_lowercased ];
+
 						$for_update[ $table . '.' . $tablefield->Field ] = "Changed type of {$table}.{$tablefield->Field} from {$tablefield->Type} to {$fieldtype}";
 					}
 				}
@@ -2818,6 +2825,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 					if ( $tablefield->Default != $default_value ) {
 						// Add a query to change the column's default value
 						$cqueries[] = "ALTER TABLE {$table} ALTER COLUMN `{$tablefield->Field}` SET DEFAULT '{$default_value}'";
+
 						$for_update[ $table . '.' . $tablefield->Field ] = "Changed default value of {$table}.{$tablefield->Field} from {$tablefield->Default} to {$default_value}";
 					}
 				}
@@ -2833,6 +2841,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 		foreach ( $cfields as $fieldname => $fielddef ) {
 			// Push a query line into $cqueries that adds the field to that table.
 			$cqueries[] = "ALTER TABLE {$table} ADD COLUMN $fielddef";
+
 			$for_update[ $table . '.' . $fieldname ] = 'Added column ' . $table . '.' . $fieldname;
 		}
 
@@ -2845,9 +2854,9 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 
 			// For every index in the table.
 			foreach ( $tableindices as $tableindex ) {
+				$keyname = strtolower( $tableindex->Key_name );
 
 				// Add the index to the index data array.
-				$keyname                             = strtolower( $tableindex->Key_name );
 				$index_ary[ $keyname ]['columns'][]  = array(
 					'fieldname' => $tableindex->Column_name,
 					'subpart'   => $tableindex->Sub_part,
@@ -2905,6 +2914,7 @@ function dbDelta( $queries = '', $execute = true ) { // phpcs:ignore WordPress.N
 		foreach ( (array) $indices as $index ) {
 			// Push a query line into $cqueries that adds the index to that table.
 			$cqueries[] = "ALTER TABLE {$table} ADD $index";
+
 			$for_update[] = 'Added index ' . $table . ' ' . $index;
 		}
 
@@ -3269,7 +3279,7 @@ function maybe_disable_link_manager() {
 function pre_schema_upgrade() {
 	global $wp_current_db_version, $wpdb;
 
-	// Upgrade versions prior to 2.9
+	// Upgrade versions prior to 2.9.
 	if ( $wp_current_db_version < 11557 ) {
 		// Delete duplicate options. Keep the option with the highest option_id.
 		$wpdb->query( "DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2 USING (`option_name`) WHERE o2.option_id > o1.option_id" );
@@ -3284,7 +3294,7 @@ function pre_schema_upgrade() {
 	// Multisite schema upgrades.
 	if ( $wp_current_db_version < 25448 && is_multisite() && wp_should_upgrade_global_tables() ) {
 
-		// Upgrade versions prior to 3.7
+		// Upgrade versions prior to 3.7.
 		if ( $wp_current_db_version < 25179 ) {
 			// New primary key for signups.
 			$wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
@@ -3342,7 +3352,7 @@ CREATE TABLE $wpdb->sitecategories (
   KEY last_updated (last_updated)
 ) $charset_collate;
 ";
-		// now create tables
+		// Now create tables.
 		dbDelta( $ms_queries );
 	}
 endif;
@@ -3367,20 +3377,20 @@ endif;
  */
 function wp_should_upgrade_global_tables() {
 
-	// Return false early if explicitly not upgrading
+	// Return false early if explicitly not upgrading.
 	if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
 		return false;
 	}
 
-	// Assume global tables should be upgraded
+	// Assume global tables should be upgraded.
 	$should_upgrade = true;
 
-	// Set to false if not on main network (does not matter if not multi-network)
+	// Set to false if not on main network (does not matter if not multi-network).
 	if ( ! is_main_network() ) {
 		$should_upgrade = false;
 	}
 
-	// Set to false if not on main site of current network (does not matter if not multi-site)
+	// Set to false if not on main site of current network (does not matter if not multi-site).
 	if ( ! is_main_site() ) {
 		$should_upgrade = false;
 	}

wp-admin/includes/user.php

@@ -393,7 +393,7 @@ function wp_delete_user( $id, $reassign = null ) {
 			}
 		}
 
-		// Clean links
+		// Clean links.
 		$link_ids = $wpdb->get_col( $wpdb->prepare( "SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $id ) );
 
 		if ( $link_ids ) {
@@ -418,7 +418,7 @@ function wp_delete_user( $id, $reassign = null ) {
 		}
 	}
 
-	// FINALLY, delete user
+	// FINALLY, delete user.
 	if ( is_multisite() ) {
 		remove_user_from_blog( $id, get_current_blog_id() );
 	} else {
@@ -474,7 +474,7 @@ function default_password_nag_handler( $errors = false ) {
 		return;
 	}
 
-	// get_user_setting = JS saved UI setting. else no-js-fallback code.
+	// get_user_setting() = JS-saved UI setting. Else no-js-fallback code.
 	if ( 'hide' == get_user_setting( 'default_password_nag' ) || isset( $_GET['default_password_nag'] ) && '0' == $_GET['default_password_nag'] ) {
 		delete_user_setting( 'default_password_nag' );
 		update_user_option( $user_ID, 'default_password_nag', false, true );

wp-admin/includes/widgets.php

@@ -22,7 +22,7 @@ function wp_list_widgets() {
 	$done = array();
 
 	foreach ( $sort as $widget ) {
-		if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget
+		if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget.
 			continue;
 		}
 
@@ -142,8 +142,8 @@ function wp_list_widget_controls_dynamic_sidebar( $params ) {
 
 	$params[0]['before_widget'] = "<div id='widget-{$i}_{$id}' class='widget'$hidden>";
 	$params[0]['after_widget']  = '</div>';
-	$params[0]['before_title']  = '%BEG_OF_TITLE%'; // deprecated
+	$params[0]['before_title']  = '%BEG_OF_TITLE%'; // Deprecated.
-	$params[0]['after_title']   = '%END_OF_TITLE%'; // deprecated
+	$params[0]['after_title']   = '%END_OF_TITLE%'; // Deprecated.
 
 	if ( is_callable( $wp_registered_widgets[ $widget_id ]['callback'] ) ) {
 		$wp_registered_widgets[ $widget_id ]['_callback'] = $wp_registered_widgets[ $widget_id ]['callback'];
@@ -192,7 +192,7 @@ function wp_widget_control( $sidebar_args ) {
 
 	$widget_id  = $sidebar_args['widget_id'];
 	$sidebar_id = isset( $sidebar_args['id'] ) ? $sidebar_args['id'] : false;
-	$key        = $sidebar_id ? array_search( $widget_id, $sidebars_widgets[ $sidebar_id ] ) : '-1'; // position of widget in sidebar
+	$key        = $sidebar_id ? array_search( $widget_id, $sidebars_widgets[ $sidebar_id ] ) : '-1'; // Position of widget in sidebar.
 	$control    = isset( $wp_registered_widget_controls[ $widget_id ] ) ? $wp_registered_widget_controls[ $widget_id ] : array();
 	$widget     = $wp_registered_widgets[ $widget_id ];
 
@@ -226,7 +226,7 @@ function wp_widget_control( $sidebar_args ) {
 	 * for a multi-widget control.
 	 */
 	if ( isset( $sidebar_args['_display'] ) && 'template' == $sidebar_args['_display'] && $widget_number ) {
-		// number == -1 implies a template where id numbers are replaced by a generic '__i__'
+		// number == -1 implies a template where id numbers are replaced by a generic '__i__'.
 		$control['params'][0]['number'] = -1;
 		// With id_base widget id's are constructed like {$id_base}-{$id_number}.
 		if ( isset( $control['id_base'] ) ) {

wp-admin/index.php

@@ -44,7 +44,7 @@ $screen->add_help_tab(
 	)
 );
 
-// Help tabs
+// Help tabs.
 
 $help  = '<p>' . __( 'The left-hand navigation menu provides links to all of the WordPress administration screens, with submenu items displayed on hover. You can minimize this menu to a narrow icon strip by clicking on the Collapse Menu arrow at the bottom.' ) . '</p>';
 $help .= '<p>' . __( 'Links in the Toolbar at the top of the screen connect your dashboard and the front end of your site, and provide access to your profile and helpful WordPress information.' ) . '</p>';
@@ -119,7 +119,7 @@ if ( has_action( 'welcome_panel' ) && current_user_can( 'edit_theme_options' ) )
 	$classes = 'welcome-panel';
 
 	$option = get_user_meta( get_current_user_id(), 'show_welcome_panel', true );
-	// 0 = hide, 1 = toggled to show or single site creator, 2 = multisite site owner
+	// 0 = hide, 1 = toggled to show or single site creator, 2 = multisite site owner.
 	$hide = 0 == $option || ( 2 == $option && wp_get_current_user()->user_email != get_option( 'admin_email' ) );
 	if ( $hide ) {
 		$classes .= ' hidden';

wp-admin/install-helper.php

@@ -194,7 +194,7 @@ function check_column( $table_name, $col_name, $col_type, $is_null = null, $key
 				return false;
 			}
 			return true;
-		} // end if found our column
+		} // End if found our column.
 	}
 	return false;
 }

wp-admin/install.php

@@ -77,7 +77,7 @@ function display_header( $body_classes = '' ) {
 <p id="logo"><a href="<?php echo esc_url( __( 'https://wordpress.org/' ) ); ?>"><?php _e( 'WordPress' ); ?></a></p>
 
 	<?php
-} // end display_header()
+} // End display_header().
 
 /**
  * Display installer setup form.
@@ -94,7 +94,7 @@ function display_setup_form( $error = null ) {
 	$sql        = $wpdb->prepare( 'SHOW TABLES LIKE %s', $wpdb->esc_like( $wpdb->users ) );
 	$user_table = ( $wpdb->get_var( $sql ) != null );
 
-	// Ensure that Blogs appear in search engines by default.
+	// Ensure that sites appear in search engines by default.
 	$blog_public = 1;
 	if ( isset( $_POST['weblog_title'] ) ) {
 		$blog_public = isset( $_POST['blog_public'] );
@@ -209,7 +209,7 @@ function display_setup_form( $error = null ) {
 	<input type="hidden" name="language" value="<?php echo isset( $_REQUEST['language'] ) ? esc_attr( $_REQUEST['language'] ) : ''; ?>" />
 </form>
 	<?php
-} // end display_setup_form()
+} // End display_setup_form().
 
 // Let's check to make sure WP isn't already installed.
 if ( is_blog_installed() ) {
@@ -303,7 +303,7 @@ if ( ! empty( $_REQUEST['language'] ) ) {
 $scripts_to_print = array( 'jquery' );
 
 switch ( $step ) {
-	case 0: // Step 0
+	case 0: // Step 0.
 		if ( wp_can_install_language_pack() && empty( $language ) ) {
 			$languages = wp_get_available_translations();
 			if ( $languages ) {
@@ -355,7 +355,7 @@ switch ( $step ) {
 		$scripts_to_print[] = 'user-profile';
 
 		display_header();
-		// Fill in the data we gathered
+		// Fill in the data we gathered.
 		$weblog_title         = isset( $_POST['weblog_title'] ) ? trim( wp_unslash( $_POST['weblog_title'] ) ) : '';
 		$user_name            = isset( $_POST['user_name'] ) ? trim( wp_unslash( $_POST['user_name'] ) ) : '';
 		$admin_password       = isset( $_POST['admin_password'] ) ? wp_unslash( $_POST['admin_password'] ) : '';
@@ -366,22 +366,22 @@ switch ( $step ) {
 		// Check email address.
 		$error = false;
 		if ( empty( $user_name ) ) {
-			// TODO: poka-yoke
+			// TODO: Poka-yoke.
 			display_setup_form( __( 'Please provide a valid username.' ) );
 			$error = true;
 		} elseif ( $user_name != sanitize_user( $user_name, true ) ) {
 			display_setup_form( __( 'The username you provided has invalid characters.' ) );
 			$error = true;
 		} elseif ( $admin_password != $admin_password_check ) {
-			// TODO: poka-yoke
+			// TODO: Poka-yoke.
 			display_setup_form( __( 'Your passwords do not match. Please try again.' ) );
 			$error = true;
 		} elseif ( empty( $admin_email ) ) {
-			// TODO: poka-yoke
+			// TODO: Poka-yoke.
 			display_setup_form( __( 'You must provide an email address.' ) );
 			$error = true;
 		} elseif ( ! is_email( $admin_email ) ) {
-			// TODO: poka-yoke
+			// TODO: Poka-yoke.
 			display_setup_form( __( 'Sorry, that isn&#8217;t a valid email address. Email addresses look like <code>username@example.com</code>.' ) );
 			$error = true;
 		}

wp-admin/js/accordion.js

@@ -35,11 +35,11 @@
 
 		// Expand/Collapse accordion sections on click.
 		$( '.accordion-container' ).on( 'click keydown', '.accordion-section-title', function( e ) {
-			if ( e.type === 'keydown' && 13 !== e.which ) { // "return" key
+			if ( e.type === 'keydown' && 13 !== e.which ) { // "Return" key.
 				return;
 			}
 
-			e.preventDefault(); // Keep this AFTER the key filter above
+			e.preventDefault(); // Keep this AFTER the key filter above.
 
 			accordionSwitch( $( this ) );
 		});
@@ -80,7 +80,7 @@
 			section.toggleClass( 'open' );
 		}
 
-		// We have to wait for the animations to finish
+		// We have to wait for the animations to finish.
 		setTimeout(function(){
 		    container.removeClass( 'opening' );
 		}, 150);

wp-admin/js/code-editor.js

@@ -79,7 +79,11 @@ if ( 'undefined' === typeof window.wp.codeEditor ) {
 				options = $.extend( {}, options );
 			}
 
-			// Note that rules must be sent in the "deprecated" lint.options property to prevent linter from complaining about unrecognized options. See <https://github.com/codemirror/CodeMirror/pull/4944>.
+			/*
+			 * Note that rules must be sent in the "deprecated" lint.options property 
+			 * to prevent linter from complaining about unrecognized options.
+			 * See <https://github.com/codemirror/CodeMirror/pull/4944>.
+			 */
 			if ( ! options.options ) {
 				options.options = {};
 			}

wp-admin/js/color-picker.js

@@ -36,7 +36,6 @@
 		 * Creates a color picker that only allows you to adjust the hue.
 		 *
 		 * @since 3.5.0
-		 *
 		 * @access private
 		 *
 		 * @return {void}
@@ -80,7 +79,6 @@
 		 * Creates the color picker, sets default values, css classes and wraps it all in HTML.
 		 *
 		 * @since 3.5.0
-		 *
 		 * @access private
 		 *
 		 * @return {void}
@@ -209,7 +207,6 @@
 		 * Binds event listeners to the color picker.
 		 *
 		 * @since 3.5.0
-		 *
 		 * @access private
 		 *
 		 * @return {void}

wp-admin/js/comment.js

@@ -70,7 +70,7 @@ jQuery(document).ready( function($) {
 	 * @param {Event} event The event object.
 	 * @return {void}
 	 */
-	$timestampdiv.find('.save-timestamp').click( function( event ) { // crazyhorse - multiple ok cancels
+	$timestampdiv.find('.save-timestamp').click( function( event ) { // Crazyhorse - multiple OK cancels.
 		var aa = $('#aa').val(), mm = $('#mm').val(), jj = $('#jj').val(), hh = $('#hh').val(), mn = $('#mn').val(),
 			newD = new Date( aa, mm - 1, jj, hh, mn );
 

wp-admin/js/common.js

@@ -168,7 +168,7 @@ window.validateForm = function( form ) {
 		.length;
 };
 
-// stub for doing better warnings
+// Stub for doing better warnings.
 /**
  * Shows message pop-up notice or confirmation message.
  *
@@ -334,13 +334,13 @@ $('.contextual-help-tabs').delegate('a', 'click', function(e) {
 	if ( link.is('.active a') )
 		return false;
 
-	// Links
+	// Links.
 	$('.contextual-help-tabs .active').removeClass('active');
 	link.parent('li').addClass('active');
 
 	panel = $( link.attr('href') );
 
-	// Panels
+	// Panels.
 	$('.help-tab-content').not( panel ).removeClass('active').hide();
 	panel.addClass('active').show();
 });
@@ -517,7 +517,7 @@ $document.ready( function() {
 	$( '#collapse-button' ).on( 'click.collapse-menu', function() {
 		var viewportWidth = getViewportWidth() || 961;
 
-		// reset any compensation for submenus near the bottom of the screen
+		// Reset any compensation for submenus near the bottom of the screen.
 		$('#adminmenu div.wp-submenu').css('margin-top', '');
 
 		if ( viewportWidth < 960 ) {
@@ -582,12 +582,12 @@ $document.ready( function() {
 
 		menutop = $menuItem.offset().top;
 		wintop = $window.scrollTop();
-		maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar
+		maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar.
 
-		bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu
+		bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu.
-		pageHeight = $wpwrap.height(); // Height of the entire page
+		pageHeight = $wpwrap.height();                  // Height of the entire page.
 		adjustment = 60 + bottomOffset - pageHeight;
-		theFold = $window.height() + wintop - 50; // The fold
+		theFold = $window.height() + wintop - 50;       // The fold.
 
 		if ( theFold < ( bottomOffset - adjustment ) ) {
 			adjustment = bottomOffset - theFold;
@@ -604,8 +604,8 @@ $document.ready( function() {
 		}
 	}
 
-	if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // touch screen device
+	if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // Touch screen device.
-		// iOS Safari works with touchstart, the rest work with click
+		// iOS Safari works with touchstart, the rest work with click.
 		mobileEvent = isIOS ? 'touchstart' : 'click';
 
 		/**
@@ -639,9 +639,11 @@ $document.ready( function() {
 				return;
 			}
 
-			// Show the sub instead of following the link if:
+			/*
-			//	- the submenu is not open
+			 * Show the sub instead of following the link if:
-			//	- the submenu is not shown inline or the menu is not folded
+			 * 	- the submenu is not open.
+			 * 	- the submenu is not shown inline or the menu is not folded.
+			 */
 			if ( ! $menuItem.hasClass( 'opensub' ) && ( ! $menuItem.hasClass( 'wp-menu-open' ) || $menuItem.width() < 40 ) ) {
 				event.preventDefault();
 				adjustSubmenu( $menuItem );
@@ -664,12 +666,12 @@ $document.ready( function() {
 					$submenu = $menuItem.find( '.wp-submenu' ),
 					top = parseInt( $submenu.css( 'top' ), 10 );
 
-				if ( isNaN( top ) || top > -5 ) { // the submenu is visible
+				if ( isNaN( top ) || top > -5 ) { // The submenu is visible.
 					return;
 				}
 
 				if ( $adminmenu.data( 'wp-responsive' ) ) {
-					// The menu is in responsive mode, bail
+					// The menu is in responsive mode, bail.
 					return;
 				}
 
@@ -685,7 +687,7 @@ $document.ready( function() {
 			 */
 			out: function(){
 				if ( $adminmenu.data( 'wp-responsive' ) ) {
-					// The menu is in responsive mode, bail
+					// The menu is in responsive mode, bail.
 					return;
 				}
 
@@ -705,7 +707,7 @@ $document.ready( function() {
 		 */
 		$adminmenu.on( 'focus.adminmenu', '.wp-submenu a', function( event ) {
 			if ( $adminmenu.data( 'wp-responsive' ) ) {
-				// The menu is in responsive mode, bail
+				// The menu is in responsive mode, bail.
 				return;
 			}
 
@@ -759,7 +761,7 @@ $document.ready( function() {
 				$button = $( '<button type="button" class="notice-dismiss"><span class="screen-reader-text"></span></button>' ),
 				btnText = commonL10n.dismiss || '';
 
-			// Ensure plain text
+			// Ensure plain text.
 			$button.find( '.screen-reader-text' ).text( btnText );
 			$button.on( 'click.wp-dismiss-notice', function( event ) {
 				event.preventDefault();
@@ -776,7 +778,7 @@ $document.ready( function() {
 
 	$document.on( 'wp-updates-notice-added wp-plugin-install-error wp-plugin-update-error wp-plugin-delete-error wp-theme-install-error wp-theme-delete-error', makeNoticesDismissible );
 
-	// Init screen meta
+	// Init screen meta.
 	screenMeta.init();
 
 	/**
@@ -902,7 +904,7 @@ $document.ready( function() {
 		}
 	}, '.has-row-actions' );
 
-	// Toggle list table rows on small screens
+	// Toggle list table rows on small screens.
 	$( 'tbody' ).on( 'click', '.toggle-row', function() {
 		$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
 	});
@@ -925,7 +927,7 @@ $document.ready( function() {
 
 		// After pressing escape key (keyCode: 27), the tab key should tab out of the textarea.
 		if ( e.keyCode == 27 ) {
-			// when pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them
+			// When pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them.
 			e.preventDefault();
 			$(el).data('tab-out', true);
 			return;
@@ -1276,7 +1278,7 @@ $document.ready( function() {
 
 			this.maybeDisableSortables = this.maybeDisableSortables.bind( this );
 
-			// Modify functionality based on custom activate/deactivate event
+			// Modify functionality based on custom activate/deactivate event.
 			$document.on( 'wp-responsive-activate.wp-responsive', function() {
 				self.activate();
 			}).on( 'wp-responsive-deactivate.wp-responsive', function() {
@@ -1289,7 +1291,7 @@ $document.ready( function() {
 			$( '#wp-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) {
 				event.preventDefault();
 
-				// close any open toolbar submenus.
+				// Close any open toolbar submenus.
 				$adminbar.find( '.hover' ).removeClass( 'hover' );
 
 				$wpwrap.toggleClass( 'wp-responsive-open' );

wp-admin/js/customize-controls.js

@@ -578,7 +578,8 @@
 			return deferred.promise();
 		}
 
-		// A status would cause a revision to be made, and for this wp.customize.previewer.save() should be used. Status is also disallowed for revisions regardless.
+		// A status would cause a revision to be made, and for this wp.customize.previewer.save() should be used.
+		// Status is also disallowed for revisions regardless.
 		if ( submittedArgs.status ) {
 			return deferred.reject( { code: 'illegal_status_in_changeset_update' } ).promise();
 		}
@@ -772,13 +773,13 @@
 	 */
 	api.utils.areElementListsEqual = function ( listA, listB ) {
 		var equal = (
-			listA.length === listB.length && // if lists are different lengths, then naturally they are not equal
+			listA.length === listB.length && // If lists are different lengths, then naturally they are not equal.
-			-1 === _.indexOf( _.map( // are there any false values in the list returned by map?
+			-1 === _.indexOf( _.map(         // Are there any false values in the list returned by map?
-				_.zip( listA, listB ), // pair up each element between the two lists
+				_.zip( listA, listB ),       // Pair up each element between the two lists.
 				function ( pair ) {
-					return $( pair[0] ).is( pair[1] ); // compare to see if each pair are equal
+					return $( pair[0] ).is( pair[1] ); // Compare to see if each pair is equal.
 				}
-			), false ) // check for presence of false in map's return value
+			), false ) // Check for presence of false in map's return value.
 		);
 		return equal;
 	};
@@ -1128,7 +1129,8 @@
 			}
 
 			if ( ! $.contains( document, headContainer.get( 0 ) ) ) {
-				// If the element is not in the DOM, then jQuery.fn.slideUp() does nothing. In this case, a hard toggle is required instead.
+				// If the element is not in the DOM, then jQuery.fn.slideUp() does nothing.
+				// In this case, a hard toggle is required instead.
 				headContainer.toggle( active );
 				if ( args.completeCallback ) {
 					args.completeCallback();
@@ -1479,7 +1481,7 @@
 						});
 					} );
 				} else {
-					// There is no panel, so embed the section in the root of the customizer
+					// There is no panel, so embed the section in the root of the customizer.
 					parentContainer = api.ensure( section.containerPaneParent );
 					if ( ! section.headContainer.parent().is( parentContainer ) ) {
 						parentContainer.append( section.headContainer );
@@ -1511,7 +1513,7 @@
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
-				event.preventDefault(); // Keep this AFTER the key filter above
+				event.preventDefault(); // Keep this AFTER the key filter above.
 
 				if ( section.expanded() ) {
 					section.collapse();
@@ -1718,12 +1720,12 @@
 			var inject,
 				section = this;
 
-			// Watch for changes to the panel state
+			// Watch for changes to the panel state.
 			inject = function( panelId ) {
 				var parentContainer;
 				api.panel( panelId, function( panel ) {
 
-					// The panel has been registered, wait for it to become ready/initialized
+					// The panel has been registered, wait for it to become ready/initialized.
 					panel.deferred.embedded.done( function() {
 						parentContainer = panel.contentContainer;
 						if ( ! section.headContainer.parent().is( parentContainer ) ) {
@@ -1737,7 +1739,7 @@
 				} );
 			};
 			section.panel.bind( inject );
-			inject( section.panel.get() ); // Since a section may never get a panel, assume that it won't ever get one
+			inject( section.panel.get() ); // Since a section may never get a panel, assume that it won't ever get one.
 		},
 
 		/**
@@ -1758,17 +1760,17 @@
 					return;
 				}
 
-				// Pressing the right arrow key fires a theme:next event
+				// Pressing the right arrow key fires a theme:next event.
 				if ( 39 === event.keyCode ) {
 					section.nextTheme();
 				}
 
-				// Pressing the left arrow key fires a theme:previous event
+				// Pressing the left arrow key fires a theme:previous event.
 				if ( 37 === event.keyCode ) {
 					section.previousTheme();
 				}
 
-				// Pressing the escape key fires a theme:collapse event
+				// Pressing the escape key fires a theme:collapse event.
 				if ( 27 === event.keyCode ) {
 					if ( section.$body.hasClass( 'modal-open' ) ) {
 
@@ -1818,7 +1820,7 @@
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
-				event.preventDefault(); // Keep this AFTER the key filter above
+				event.preventDefault(); // Keep this AFTER the key filter above.
 				section.collapse();
 			});
 
@@ -1957,11 +1959,11 @@
 		 */
 		onChangeExpanded: function ( expanded, args ) {
 
-			// Note: there is a second argument 'args' passed
+			// Note: there is a second argument 'args' passed.
 			var section = this,
 				container = section.contentContainer.closest( '.customize-themes-full-container' );
 
-			// Immediately call the complete callback if there were no changes
+			// Immediately call the complete callback if there were no changes.
 			if ( args.unchanged ) {
 				if ( args.completeCallback ) {
 					args.completeCallback();
@@ -1976,7 +1978,7 @@
 					section.loadThemes();
 				}
 
-				// Collapse any sibling sections/panels
+				// Collapse any sibling sections/panels.
 				api.section.each( function ( otherSection ) {
 					var searchTerm;
 
@@ -2123,7 +2125,8 @@
 
 					_.delay( section.renderScreenshots, 100 ); // Wait for the controls to become visible.
 
-					if ( 'local' === section.params.filter_type || 100 > themes.length ) { // If we have less than the requested 100 themes, it's the end of the list.
+					if ( 'local' === section.params.filter_type || 100 > themes.length ) {
+						// If we have less than the requested 100 themes, it's the end of the list.
 						section.fullyLoaded = true;
 					}
 				} else {
@@ -2202,7 +2205,9 @@
 				container = section.container.closest( '.customize-themes-full-container' );
 
 				bottom = container.scrollTop() + container.height();
-				threshold = container.prop( 'scrollHeight' ) - 3000; // Use a fixed distance to the bottom of loaded results to avoid unnecessarily loading results sooner when using a percentage of scroll distance.
+				// Use a fixed distance to the bottom of loaded results to avoid unnecessarily
+				// loading results sooner when using a percentage of scroll distance.
+				threshold = container.prop( 'scrollHeight' ) - 3000;
 
 				if ( bottom > threshold ) {
 					section.loadThemes();
@@ -2614,15 +2619,15 @@
 			el.on( 'keydown', function( event ) {
 
 				// Return if it's not the tab key
-				// When navigating with prev/next focus is already handled
+				// When navigating with prev/next focus is already handled.
 				if ( 9 !== event.keyCode ) {
 					return;
 				}
 
-				// uses jQuery UI to get the tabbable elements
+				// Uses jQuery UI to get the tabbable elements.
 				tabbables = $( ':tabbable', el );
 
-				// Keep focus within the overlay
+				// Keep focus within the overlay.
 				if ( tabbables.last()[0] === event.target && ! event.shiftKey ) {
 					tabbables.first().focus();
 					return false;
@@ -2797,7 +2802,7 @@
 		embed: function () {
 			var panel = this,
 				container = $( '#customize-theme-controls' ),
-				parentContainer = $( '.customize-pane-parent' ); // @todo This should be defined elsewhere, and to be configurable
+				parentContainer = $( '.customize-pane-parent' ); // @todo This should be defined elsewhere, and to be configurable.
 
 			if ( ! panel.headContainer.parent().is( parentContainer ) ) {
 				parentContainer.append( panel.headContainer );
@@ -2821,7 +2826,7 @@
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
-				event.preventDefault(); // Keep this AFTER the key filter above
+				event.preventDefault(); // Keep this AFTER the key filter above.
 
 				if ( ! panel.expanded() ) {
 					panel.expand();
@@ -2833,7 +2838,7 @@
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
-				event.preventDefault(); // Keep this AFTER the key filter above
+				event.preventDefault(); // Keep this AFTER the key filter above.
 
 				if ( panel.expanded() ) {
 					panel.collapse();
@@ -2908,7 +2913,7 @@
 		 */
 		onChangeExpanded: function ( expanded, args ) {
 
-			// Immediately call the complete callback if there were no changes
+			// Immediately call the complete callback if there were no changes.
 			if ( args.unchanged ) {
 				if ( args.completeCallback ) {
 					args.completeCallback();
@@ -2916,7 +2921,7 @@
 				return;
 			}
 
-			// Note: there is a second argument 'args' passed
+			// Note: there is a second argument 'args' passed.
 			var panel = this,
 				accordionSection = panel.contentContainer,
 				overlay = accordionSection.closest( '.wp-full-overlay' ),
@@ -2927,7 +2932,7 @@
 				skipTransition;
 
 			if ( expanded && ! accordionSection.hasClass( 'current-panel' ) ) {
-				// Collapse any sibling sections/panels
+				// Collapse any sibling sections/panels.
 				api.section.each( function ( section ) {
 					if ( panel.id !== section.panel() ) {
 						section.collapse( { duration: 0 } );
@@ -3067,7 +3072,7 @@
 			// Attach regular panel events.
 			api.Panel.prototype.attachEvents.apply( panel );
 
-			// Temporary since supplying SFTP credentials does not work yet. See #42184
+			// Temporary since supplying SFTP credentials does not work yet. See #42184.
 			if ( api.settings.theme._canInstall && api.settings.theme._filesystemCredentialsNeeded ) {
 				panel.notifications.add( new api.Notification( 'theme_install_unavailable', {
 					message: api.l10n.themeInstallUnavailable,
@@ -3140,7 +3145,7 @@
 			// Expand/collapse the panel normally.
 			api.Panel.prototype.onChangeExpanded.apply( this, [ expanded, args ] );
 
-			// Immediately call the complete callback if there were no changes
+			// Immediately call the complete callback if there were no changes.
 			if ( args.unchanged ) {
 				if ( args.completeCallback ) {
 					args.completeCallback();
@@ -3682,15 +3687,15 @@
 			var control = this,
 				inject;
 
-			// Watch for changes to the section state
+			// Watch for changes to the section state.
 			inject = function ( sectionId ) {
 				var parentContainer;
-				if ( ! sectionId ) { // @todo allow a control to be embedded without a section, for instance a control embedded in the front end.
+				if ( ! sectionId ) { // @todo Allow a control to be embedded without a section, for instance a control embedded in the front end.
 					return;
 				}
-				// Wait for the section to be registered
+				// Wait for the section to be registered.
 				api.section( sectionId, function ( section ) {
-					// Wait for the section to be ready/initialized
+					// Wait for the section to be ready/initialized.
 					section.deferred.embedded.done( function () {
 						parentContainer = ( section.contentContainer.is( 'ul' ) ) ? section.contentContainer : section.contentContainer.find( 'ul:first' );
 						if ( ! control.container.parent().is( parentContainer ) ) {
@@ -3724,7 +3729,7 @@
 					control.addNewPage();
 				});
 				control.container.on( 'keydown', '.create-item-input', function( e ) {
-					if ( 13 === e.which ) { // Enter
+					if ( 13 === e.which ) { // Enter.
 						control.addNewPage();
 					}
 				});
@@ -3909,7 +3914,7 @@
 			}
 
 			if ( ! $.contains( document, this.container[0] ) ) {
-				// jQuery.fn.slideUp is not hiding an element if it is not in the DOM
+				// jQuery.fn.slideUp is not hiding an element if it is not in the DOM.
 				this.container.toggle( active );
 				if ( args.completeCallback ) {
 					args.completeCallback();
@@ -3957,7 +3962,7 @@
 					}
 				};
 
-			// Support the .dropdown class to open/close complex elements
+			// Support the .dropdown class to open/close complex elements.
 			this.container.on( 'click keydown', '.dropdown', function( event ) {
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
@@ -3973,7 +3978,7 @@
 					control.container.parent().parent().find( 'li.library-selected' ).focus();
 				}
 
-				// Don't want to fire focus and click at same time
+				// Don't want to fire focus and click at same time.
 				toggleFreeze = true;
 				setTimeout(function () {
 					toggleFreeze = false;
@@ -4017,7 +4022,8 @@
 
 			templateId = control.templateSelector;
 
-			// Use default content template when a standard HTML type is used, there isn't a more specific template existing, and the control container is empty.
+			// Use default content template when a standard HTML type is used,
+			// there isn't a more specific template existing, and the control container is empty.
 			if ( templateId === 'customize-control-' + control.params.type + '-content' &&
 				_.contains( standardTypes, control.params.type ) &&
 				! document.getElementById( 'tmpl-' + templateId ) &&
@@ -4047,6 +4053,7 @@
 		 *
 		 * @since 4.7.0
 		 * @access private
+		 *
 		 * @return {void}
 		 */
 		addNewPage: function () {
@@ -4070,7 +4077,8 @@
 			input.removeClass( 'invalid' );
 			input.attr( 'disabled', 'disabled' );
 
-			// The menus functions add the page, publish when appropriate, and also add the new page to the dropdown-pages controls.
+			// The menus functions add the page, publish when appropriate,
+			// and also add the new page to the dropdown-pages controls.
 			promise = api.Menus.insertAutoDraftPost( {
 				post_title: title,
 				post_type: 'page'
@@ -4199,7 +4207,7 @@
 			control.container.on( 'click keydown', '.remove-button', control.removeFile );
 			control.container.on( 'click keydown', '.remove-button', control.cleanupPlayer );
 
-			// Resize the player controls when it becomes visible (ie when section is expanded)
+			// Resize the player controls when it becomes visible (ie when section is expanded).
 			api.section( control.section() ).container
 				.on( 'expanded', function() {
 					if ( control.player ) {
@@ -5128,7 +5136,7 @@
 					return;
 				}
 
-				event.preventDefault(); // Keep this AFTER the key filter above
+				event.preventDefault(); // Keep this AFTER the key filter above.
 				section = api.section( control.section() );
 				section.showDetails( control.params.theme, function() {
 
@@ -5196,7 +5204,7 @@
 				control.params.priority = 101 - matchCount; // Sort results by match count.
 				return true;
 			} else {
-				control.deactivate(); // Hide control
+				control.deactivate(); // Hide control.
 				control.params.priority = 101;
 				return false;
 			}
@@ -6498,13 +6506,15 @@
 			urlParser.href = previewer.origin();
 			previewer.add( 'scheme', urlParser.protocol.replace( /:$/, '' ) );
 
-			// Limit the URL to internal, front-end links.
+			/*
-			//
+			 * Limit the URL to internal, front-end links.
-			// If the front end and the admin are served from the same domain, load the
+			 *
-			// preview over ssl if the Customizer is being loaded over ssl. This avoids
+			 * If the front end and the admin are served from the same domain, load the
-			// insecure content warnings. This is not attempted if the admin and front end
+			 * preview over ssl if the Customizer is being loaded over ssl. This avoids
-			// are on different domains to avoid the case where the front end doesn't have
+			 * insecure content warnings. This is not attempted if the admin and front end
-			// ssl certs.
+			 * are on different domains to avoid the case where the front end doesn't have
+			 * ssl certs.
+			 */
 
 			previewer.add( 'previewUrl', params.previewUrl ).setter( function( to ) {
 				var result = null, urlParser, queryParams, parsedAllowedUrl, parsedCandidateUrls = [];
@@ -6735,12 +6745,13 @@
 		 *
 		 * @since 3.4.0
 		 * @access public
+		 *
 		 * @return {void}
 		 */
 		refresh: function() {
 			var previewer = this, onSettingChange;
 
-			// Display loading indicator
+			// Display loading indicator.
 			previewer.send( 'loading-initiated' );
 
 			previewer.abort();
@@ -7013,7 +7024,7 @@
 			activeElement = $( document.activeElement );
 		}
 
-		// Sort the sections within each panel
+		// Sort the sections within each panel.
 		api.panel.each( function ( panel ) {
 			if ( 'themes' === panel.id ) {
 				return; // Don't reflow theme sections, as doing so moves them after the themes container.
@@ -7031,7 +7042,7 @@
 			}
 		} );
 
-		// Sort the controls within each section
+		// Sort the controls within each section.
 		api.section.each( function ( section ) {
 			var controls = section.controls(),
 				controlContainers = _.pluck( controls, 'container' );
@@ -7047,10 +7058,10 @@
 			}
 		} );
 
-		// Sort the root panels and sections
+		// Sort the root panels and sections.
 		rootNodes.sort( api.utils.prioritySort );
 		rootHeadContainers = _.pluck( rootNodes, 'headContainer' );
-		appendContainer = $( '#customize-theme-controls .customize-pane-parent' ); // @todo This should be defined elsewhere, and to be configurable
+		appendContainer = $( '#customize-theme-controls .customize-pane-parent' ); // @todo This should be defined elsewhere, and to be configurable.
 		if ( ! api.utils.areElementListsEqual( rootHeadContainers, appendContainer.children() ) ) {
 			_( rootNodes ).each( function ( rootNode ) {
 				appendContainer.append( rootNode.headContainer );
@@ -7058,7 +7069,7 @@
 			wasReflowed = true;
 		}
 
-		// Now re-trigger the active Value callbacks to that the panels and sections can decide whether they can be rendered
+		// Now re-trigger the active Value callbacks so that the panels and sections can decide whether they can be rendered.
 		api.panel.each( function ( panel ) {
 			var value = panel.active();
 			panel.active.callbacks.fireWith( panel.active, [ value, value ] );
@@ -7068,7 +7079,7 @@
 			section.active.callbacks.fireWith( section.active, [ value, value ] );
 		} );
 
-		// Restore focus if there was a reflow and there was an active (focused) element
+		// Restore focus if there was a reflow and there was an active (focused) element.
 		if ( wasReflowed && activeElement ) {
 			activeElement.focus();
 		}
@@ -7208,9 +7219,11 @@
 					cancelScheduleButtonReminder = api.utils.highlightButton( btnWrapper, {
 						delay: 1000,
 
-						// Only abort the reminder when the save button is focused.
+						/*
-						// If the user clicks the settings button to toggle the
+						 * Only abort the reminder when the save button is focused.
-						// settings closed, we'll still remind them.
+						 * If the user clicks the settings button to toggle the
+						 * settings closed, we'll still remind them.
+						 */
 						focusTarget: saveBtn
 					} );
 				}
@@ -7579,7 +7592,7 @@
 						if ( '0' === response ) {
 							response = 'not_logged_in';
 						} else if ( '-1' === response ) {
-							// Back-compat in case any other check_ajax_referer() call is dying
+							// Back-compat in case any other check_ajax_referer() call is dying.
 							response = 'invalid_nonce';
 						}
 
@@ -7812,7 +7825,7 @@
 			api.previewer.send( 'nonce-refresh', nonce );
 		});
 
-		// Create Settings
+		// Create Settings.
 		$.each( api.settings.settings, function( id, data ) {
 			var Constructor = api.settingConstructor[ data.type ] || api.Setting;
 			api.add( new Constructor( id, data.value, {
@@ -7822,28 +7835,31 @@
 			} ) );
 		});
 
-		// Create Panels
+		// Create Panels.
 		$.each( api.settings.panels, function ( id, data ) {
 			var Constructor = api.panelConstructor[ data.type ] || api.Panel, options;
-			options = _.extend( { params: data }, data ); // Inclusion of params alias is for back-compat for custom panels that expect to augment this property.
+			// Inclusion of params alias is for back-compat for custom panels that expect to augment this property.
+			options = _.extend( { params: data }, data );
 			api.panel.add( new Constructor( id, options ) );
 		});
 
-		// Create Sections
+		// Create Sections.
 		$.each( api.settings.sections, function ( id, data ) {
 			var Constructor = api.sectionConstructor[ data.type ] || api.Section, options;
-			options = _.extend( { params: data }, data ); // Inclusion of params alias is for back-compat for custom sections that expect to augment this property.
+			// Inclusion of params alias is for back-compat for custom sections that expect to augment this property.
+			options = _.extend( { params: data }, data );
 			api.section.add( new Constructor( id, options ) );
 		});
 
-		// Create Controls
+		// Create Controls.
 		$.each( api.settings.controls, function( id, data ) {
 			var Constructor = api.controlConstructor[ data.type ] || api.Control, options;
-			options = _.extend( { params: data }, data ); // Inclusion of params alias is for back-compat for custom controls that expect to augment this property.
+			// Inclusion of params alias is for back-compat for custom controls that expect to augment this property.
+			options = _.extend( { params: data }, data );
 			api.control.add( new Constructor( id, options ) );
 		});
 
-		// Focus the autofocused element
+		// Focus the autofocused element.
 		_.each( [ 'panel', 'section', 'control' ], function( type ) {
 			var id = api.settings.autofocus[ type ];
 			if ( ! id ) {
@@ -7896,7 +7912,7 @@
 			api.notifications.render();
 		});
 
-		// Save and activated states
+		// Save and activated states.
 		(function( state ) {
 			var saved = state.instance( 'saved' ),
 				saving = state.instance( 'saving' ),
@@ -8690,7 +8706,8 @@
 			};
 		}());
 
-		// Previewed device bindings. (The api.previewedDevice property is how this Value was first introduced, but since it has moved to api.state.)
+		// Previewed device bindings. (The api.previewedDevice property
+		// is how this Value was first introduced, but since it has moved to api.state.)
 		api.previewedDevice = api.state( 'previewedDevice' );
 
 		// Set the default device.
@@ -8797,7 +8814,7 @@
 				api.state( 'selectedChangesetStatus' ).unbind( startPromptingBeforeUnload );
 				api.state( 'selectedChangesetDate' ).unbind( startPromptingBeforeUnload );
 
-				// Prompt user with AYS dialog if leaving the Customizer with unsaved changes
+				// Prompt user with AYS dialog if leaving the Customizer with unsaved changes.
 				$( window ).on( 'beforeunload.customize-confirm', function() {
 					if ( ! isCleanState() && ! api.state( 'changesetLocked' ).get() ) {
 						setTimeout( function() {
@@ -8882,7 +8899,7 @@
 			});
 		} );
 
-		// Pass titles to the parent
+		// Pass titles to the parent.
 		api.bind( 'title', function( newTitle ) {
 			parent.send( 'title', newTitle );
 		});
@@ -8894,7 +8911,7 @@
 		// Initialize the connection with the parent frame.
 		parent.send( 'ready' );
 
-		// Control visibility for default controls
+		// Control visibility for default controls.
 		$.each({
 			'background_image': {
 				controls: [ 'background_preset', 'background_position', 'background_size', 'background_repeat', 'background_attachment' ],
@@ -8926,7 +8943,7 @@
 		api.control( 'background_preset', function( control ) {
 			var visibility, defaultValues, values, toggleVisibility, updateSettings, preset;
 
-			visibility = { // position, size, repeat, attachment
+			visibility = { // position, size, repeat, attachment.
 				'default': [ false, false, false, false ],
 				'fill': [ true, false, false, false ],
 				'fit': [ true, false, true, false ],
@@ -8942,14 +8959,15 @@
 				_wpCustomizeBackground.defaults['default-attachment']
 			];
 
-			values = { // position_x, position_y, size, repeat, attachment
+			values = { // position_x, position_y, size, repeat, attachment.
 				'default': defaultValues,
 				'fill': [ 'left', 'top', 'cover', 'no-repeat', 'fixed' ],
 				'fit': [ 'left', 'top', 'contain', 'no-repeat', 'fixed' ],
 				'repeat': [ 'left', 'top', 'auto', 'repeat', 'scroll' ]
 			};
 
-			// @todo These should actually toggle the active state, but without the preview overriding the state in data.activeControls.
+			// @todo These should actually toggle the active state,
+			// but without the preview overriding the state in data.activeControls.
 			toggleVisibility = function( preset ) {
 				_.each( [ 'background_position', 'background_size', 'background_repeat', 'background_attachment' ], function( controlId, i ) {
 					var control = api.control( controlId );
@@ -9009,7 +9027,7 @@
 			} );
 		} );
 
-		// Juggle the two controls that use header_textcolor
+		// Juggle the two controls that use header_textcolor.
 		api.control( 'display_header_text', function( control ) {
 			var last = '';
 

wp-admin/js/customize-nav-menus.js

@@ -203,9 +203,11 @@
 
 			_.bindAll( this, 'close' );
 
-			// If the available menu items panel is open and the customize controls are
+			/*
-			// interacted with (other than an item being deleted), then close the
+			 * If the available menu items panel is open and the customize controls
-			// available menu items panel. Also close on back button click.
+			 * are interacted with (other than an item being deleted), then close
+			 * the available menu items panel. Also close on back button click.
+			 */
 			$( '#customize-controls, .customize-section-back' ).on( 'click keydown', function( e ) {
 				var isDeleteBtn = $( e.target ).is( '.item-delete, .item-delete *' ),
 					isAddNewBtn = $( e.target ).is( '.add-new-menu-item, .add-new-menu-item *' );
@@ -252,7 +254,7 @@
 				}
 			});
 
-			// Close the panel if the URL in the preview changes
+			// Close the panel if the URL in the preview changes.
 			api.previewer.bind( 'url', this.close );
 
 			self.delegateEvents();
@@ -496,7 +498,7 @@
 
 		// Submit handler for keypress and click on menu item.
 		_submit: function( event ) {
-			// Only proceed with keypress if it is Enter or Spacebar
+			// Only proceed with keypress if it is Enter or Spacebar.
 			if ( 'keypress' === event.type && ( 13 !== event.which && 32 !== event.which ) ) {
 				return;
 			}
@@ -717,7 +719,7 @@
 			this.$search.focus();
 		},
 
-		// Closes the panel
+		// Closes the panel.
 		close: function( options ) {
 			options = options || {};
 
@@ -741,7 +743,7 @@
 				isBackTab = ( 9 === event.which && event.shiftKey ),
 				isSearchFocused = $( event.target ).is( this.$search );
 
-			// If enter pressed but nothing entered, don't do anything
+			// If enter pressed but nothing entered, don't do anything.
 			if ( isEnter && ! this.$search.val() ) {
 				return;
 			}
@@ -781,7 +783,7 @@
 				}
 				event.preventDefault();
 
-				// Hide description
+				// Hide description.
 				if ( content.not( ':hidden' ) ) {
 					content.slideUp( 'fast' );
 					help.attr( 'aria-expanded', 'false' );
@@ -802,7 +804,7 @@
 				return false;
 			} );
 
-			// Help toggle
+			// Help toggle.
 			help.on( 'click keydown', function( event ) {
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
@@ -1062,7 +1064,7 @@
 				menuAutoAddControl.active.set( true );
 			}
 
-			// Add the control for deleting the menu
+			// Add the control for deleting the menu.
 			menuDeleteControlId = section.id + '[delete]';
 			menuDeleteControl = api.control( menuDeleteControlId );
 			if ( ! menuDeleteControl ) {
@@ -1126,7 +1128,7 @@
 				wpNavMenu.menuList = section.contentContainer;
 				wpNavMenu.targetList = wpNavMenu.menuList;
 
-				// Add attributes needed by wpNavMenu
+				// Add attributes needed by wpNavMenu.
 				$( '#menu-to-edit' ).removeAttr( 'id' );
 				wpNavMenu.menuList.attr( 'id', 'menu-to-edit' ).addClass( 'menu' );
 
@@ -1145,7 +1147,8 @@
 						wpNavMenu.initSortables(); // Depends on menu-to-edit ID being set above.
 						section.deferred.initSortables.resolve( wpNavMenu.menuList ); // Now MenuControl can extend the sortable.
 
-						// @todo Note that wp.customize.reflowPaneContents() is debounced, so this immediate change will show a slight flicker while priorities get updated.
+						// @todo Note that wp.customize.reflowPaneContents() is debounced,
+						// so this immediate change will show a slight flicker while priorities get updated.
 						api.control( 'nav_menu[' + String( section.params.menu_id ) + ']' ).reflowMenuItems();
 					}
 					if ( _.isFunction( completeCallback ) ) {
@@ -1415,7 +1418,7 @@
 					navMenuLocationSetting = api( 'nav_menu_locations[' + checkbox.data( 'location-id' ) + ']' );
 					navMenuLocationSetting.set( menuSection.params.menu_id );
 
-					// Reset state for next new menu
+					// Reset state for next new menu.
 					checkbox.prop( 'checked', false );
 				}
 			} );
@@ -1698,7 +1701,8 @@
 			control.elements.classes = new api.Element( control.container.find( '.edit-menu-item-classes' ) );
 			control.elements.xfn = new api.Element( control.container.find( '.edit-menu-item-xfn' ) );
 			control.elements.description = new api.Element( control.container.find( '.edit-menu-item-description' ) );
-			// @todo allow other elements, added by plugins, to be automatically picked up here; allow additional values to be added to setting array.
+			// @todo Allow other elements, added by plugins, to be automatically picked up here;
+			// allow additional values to be added to setting array.
 
 			_.each( control.elements, function( element, property ) {
 				element.bind(function( value ) {
@@ -1790,7 +1794,7 @@
 			$removeBtn = control.container.find( '.item-delete' );
 
 			$removeBtn.on( 'click', function() {
-				// Find an adjacent element to add focus to when this menu item goes away
+				// Find an adjacent element to add focus to when this menu item goes away.
 				var addingItems = true, $adjacentFocusTarget, $next, $prev;
 
 				if ( ! $( 'body' ).hasClass( 'adding-menu-items' ) ) {
@@ -1811,7 +1815,7 @@
 				control.container.slideUp( function() {
 					control.setting.set( false );
 					wp.a11y.speak( api.Menus.data.l10n.itemDeleted );
-					$adjacentFocusTarget.focus(); // keyboard accessibility
+					$adjacentFocusTarget.focus(); // Keyboard accessibility.
 				} );
 
 				control.setting.set( false );
@@ -2778,13 +2782,13 @@
 					action = sectionTitle.find( '.customize-action' ),
 					name = displayNavMenuName( menu.name );
 
-				// Update the control title
+				// Update the control title.
 				controlTitle.text( name );
 				if ( location.length ) {
 					location.appendTo( controlTitle );
 				}
 
-				// Update the section title
+				// Update the section title.
 				sectionTitle.text( name );
 				if ( action.length ) {
 					action.prependTo( sectionTitle );
@@ -2981,7 +2985,7 @@
 					position: position
 				}
 			);
-			delete item.id; // only used by Backbone
+			delete item.id; // Only used by Backbone.
 
 			placeholderId = api.Menus.generatePlaceholderAutoIncrementId();
 			customizeId = 'nav_menu_item[' + String( placeholderId ) + ']';

wp-admin/js/customize-widgets.js

@@ -17,7 +17,7 @@
 	api.Widgets = api.Widgets || {};
 	api.Widgets.savedWidgetIds = {};
 
-	// Link settings
+	// Link settings.
 	api.Widgets.data = _wpCustomizeWidgetsSettings || {};
 	l10n = api.Widgets.data.l10n;
 
@@ -59,16 +59,16 @@
 		model: api.Widgets.WidgetModel,
 
 		// Controls searching on the current widget collection
-		// and triggers an update event
+		// and triggers an update event.
 		doSearch: function( value ) {
 
-			// Don't do anything if we've already done this search
+			// Don't do anything if we've already done this search.
-			// Useful because the search handler fires multiple times per keystroke
+			// Useful because the search handler fires multiple times per keystroke.
 			if ( this.terms === value ) {
 				return;
 			}
 
-			// Updates terms with the value passed
+			// Updates terms with the value passed.
 			this.terms = value;
 
 			// If we have terms, run a search...
@@ -84,16 +84,16 @@
 			}
 		},
 
-		// Performs a search within the collection
+		// Performs a search within the collection.
 		// @uses RegExp
 		search: function( term ) {
 			var match, haystack;
 
-			// Escape the term string for RegExp meta characters
+			// Escape the term string for RegExp meta characters.
 			term = term.replace( /[-\/\\^$*+?.()|[\]{}]/g, '\\$&' );
 
 			// Consider spaces as word delimiters and match the whole string
-			// so matching terms can be combined
+			// so matching terms can be combined.
 			term = term.replace( / /g, ')(?=.*' );
 			match = new RegExp( '^(?=.*' + term + ').+', 'i' );
 
@@ -150,10 +150,10 @@
 			'keydown' : 'keyboardAccessible'
 		},
 
-		// Cache current selected widget
+		// Cache current selected widget.
 		selected: null,
 
-		// Cache sidebar control which has opened panel
+		// Cache sidebar control which has opened panel.
 		currentSidebarControl: null,
 		$search: null,
 		$clearResults: null,
@@ -181,9 +181,11 @@
 			// Set the initial search count to the number of available widgets.
 			this.searchMatchesCount = this.collection.length;
 
-			// If the available widgets panel is open and the customize controls are
+			/*
-			// interacted with (i.e. available widgets panel is blurred) then close the
+			 * If the available widgets panel is open and the customize controls
-			// available widgets panel. Also close on back button click.
+			 * are interacted with (i.e. available widgets panel is blurred) then
+			 * close the available widgets panel. Also close on back button click.
+			 */
 			$( '#customize-controls, #available-widgets .customize-section-title' ).on( 'click keydown', function( e ) {
 				var isAddNewBtn = $( e.target ).is( '.add-new-widget, .add-new-widget *' );
 				if ( $( 'body' ).hasClass( 'adding-widget' ) && ! isAddNewBtn ) {
@@ -197,7 +199,7 @@
 				self.collection.doSearch( '' );
 			} );
 
-			// Close the panel if the URL in the preview changes
+			// Close the panel if the URL in the preview changes.
 			api.previewer.bind( 'url', this.close );
 		},
 
@@ -213,19 +215,19 @@
 			// Announce how many search results.
 			this.announceSearchMatches();
 
-			// Remove a widget from being selected if it is no longer visible
+			// Remove a widget from being selected if it is no longer visible.
 			if ( this.selected && ! this.selected.is( ':visible' ) ) {
 				this.selected.removeClass( 'selected' );
 				this.selected = null;
 			}
 
-			// If a widget was selected but the filter value has been cleared out, clear selection
+			// If a widget was selected but the filter value has been cleared out, clear selection.
 			if ( this.selected && ! event.target.value ) {
 				this.selected.removeClass( 'selected' );
 				this.selected = null;
 			}
 
-			// If a filter has been entered and a widget hasn't been selected, select the first one shown
+			// If a filter has been entered and a widget hasn't been selected, select the first one shown.
 			if ( ! this.selected && event.target.value ) {
 				firstVisible = this.$el.find( '> .widget-tpl:visible:first' );
 				if ( firstVisible.length ) {
@@ -301,7 +303,7 @@
 		 * Handles submit for keypress and click on widget.
 		 */
 		_submit: function( event ) {
-			// Only proceed with keypress if it is Enter or Spacebar
+			// Only proceed with keypress if it is Enter or Spacebar.
 			if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {
 				return;
 			}
@@ -345,7 +347,7 @@
 		open: function( sidebarControl ) {
 			this.currentSidebarControl = sidebarControl;
 
-			// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens
+			// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens.
 			_( this.currentSidebarControl.getWidgetFormControls() ).each( function( control ) {
 				if ( control.params.is_wide ) {
 					control.collapseForm();
@@ -360,7 +362,7 @@
 
 			this.$el.find( '.selected' ).removeClass( 'selected' );
 
-			// Reset search
+			// Reset search.
 			this.collection.doSearch( '' );
 
 			if ( ! api.settings.browser.mobile ) {
@@ -428,7 +430,7 @@
 				return;
 			}
 
-			// If enter pressed but nothing entered, don't do anything
+			// If enter pressed but nothing entered, don't do anything.
 			if ( isEnter && ! this.$search.val() ) {
 				return;
 			}
@@ -602,7 +604,7 @@
 		_setupModel: function() {
 			var self = this, rememberSavedWidgetId;
 
-			// Remember saved widgets so we know which to trash (move to inactive widgets sidebar)
+			// Remember saved widgets so we know which to trash (move to inactive widgets sidebar).
 			rememberSavedWidgetId = function() {
 				api.Widgets.savedWidgetIds[self.params.widget_id] = true;
 			};
@@ -613,7 +615,7 @@
 			this.isWidgetUpdating = false;
 			this.liveUpdateMode = true;
 
-			// Update widget whenever model changes
+			// Update widget whenever model changes.
 			this.setting.bind( function( to, from ) {
 				if ( ! _( from ).isEqual( to ) && ! self.isWidgetUpdating ) {
 					self.updateWidget( { instance: to } );
@@ -658,10 +660,10 @@
 					top;
 				$widgetInside.css( 'max-height', windowHeight );
 				top = Math.max(
-					0, // prevent top from going off screen
+					0, // Prevent top from going off screen.
 					Math.min(
-						Math.max( offsetTop, 0 ), // distance widget in panel is from top of screen
+						Math.max( offsetTop, 0 ), // Distance widget in panel is from top of screen.
-						windowHeight - formHeight // flush up against bottom of screen
+						windowHeight - formHeight // Flush up against bottom of screen.
 					)
 				);
 				$widgetInside.css( 'top', top );
@@ -680,7 +682,7 @@
 				$themeControlsContainer.off( 'expanded collapsed', positionWidget );
 			} );
 
-			// Reposition whenever a sidebar's widgets are changed
+			// Reposition whenever a sidebar's widgets are changed.
 			api.each( function( setting ) {
 				if ( 0 === setting.id.indexOf( 'sidebars_widgets[' ) ) {
 					setting.bind( function() {
@@ -711,7 +713,7 @@
 			$closeBtn = this.container.find( '.widget-control-close' );
 			$closeBtn.on( 'click', function() {
 				self.collapse();
-				self.container.find( '.widget-top .widget-action:first' ).focus(); // keyboard accessibility
+				self.container.find( '.widget-top .widget-action:first' ).focus(); // Keyboard accessibility.
 			} );
 		},
 
@@ -838,7 +840,7 @@
 						wp.a11y.speak( l10n.widgetMovedDown );
 					}
 
-					$( this ).focus(); // re-focus after the container was moved
+					$( this ).focus(); // Re-focus after the container was moved.
 				}
 			} );
 
@@ -886,12 +888,12 @@
 		_setupHighlightEffects: function() {
 			var self = this;
 
-			// Highlight whenever hovering or clicking over the form
+			// Highlight whenever hovering or clicking over the form.
 			this.container.on( 'mouseenter click', function() {
 				self.setting.previewer.send( 'highlight-widget', self.params.widget_id );
 			} );
 
-			// Highlight when the setting is updated
+			// Highlight when the setting is updated.
 			this.setting.bind( function() {
 				self.setting.previewer.send( 'highlight-widget', self.params.widget_id );
 			} );
@@ -907,7 +909,7 @@
 			$widgetRoot = this.container.find( '.widget:first' );
 			$widgetContent = $widgetRoot.find( '.widget-content:first' );
 
-			// Configure update button
+			// Configure update button.
 			$saveBtn = this.container.find( '.widget-control-save' );
 			$saveBtn.val( l10n.saveBtnLabel );
 			$saveBtn.attr( 'title', l10n.saveBtnTooltip );
@@ -921,15 +923,15 @@
 				self.updateWidget();
 			}, 250 );
 
-			// Trigger widget form update when hitting Enter within an input
+			// Trigger widget form update when hitting Enter within an input.
 			$widgetContent.on( 'keydown', 'input', function( e ) {
-				if ( 13 === e.which ) { // Enter
+				if ( 13 === e.which ) { // Enter.
 					e.preventDefault();
 					self.updateWidget( { ignoreActiveElement: true } );
 				}
 			} );
 
-			// Handle widgets that support live previews
+			// Handle widgets that support live previews.
 			$widgetContent.on( 'change input propertychange', ':input', function( e ) {
 				if ( ! self.liveUpdateMode ) {
 					return;
@@ -939,7 +941,7 @@
 				}
 			} );
 
-			// Remove loading indicators when the setting is saved and the preview updates
+			// Remove loading indicators when the setting is saved and the preview updates.
 			this.setting.previewer.channel.bind( 'synced', function() {
 				self.container.removeClass( 'previewer-loading' );
 			} );
@@ -972,7 +974,7 @@
 		 * @param {function}  args.completeCallback
 		 */
 		onChangeActive: function ( active, args ) {
-			// Note: there is a second 'args' parameter being passed, merged on top of this.defaultActiveArguments
+			// Note: there is a second 'args' parameter being passed, merged on top of this.defaultActiveArguments.
 			this.container.toggleClass( 'widget-rendered', active );
 			if ( args.completeCallback ) {
 				args.completeCallback();
@@ -985,10 +987,10 @@
 		_setupRemoveUI: function() {
 			var self = this, $removeBtn, replaceDeleteWithRemove;
 
-			// Configure remove button
+			// Configure remove button.
 			$removeBtn = this.container.find( '.widget-control-remove' );
 			$removeBtn.on( 'click', function() {
-				// Find an adjacent element to add focus to when this widget goes away
+				// Find an adjacent element to add focus to when this widget goes away.
 				var $adjacentFocusTarget;
 				if ( self.container.next().is( '.customize-control-widget_form' ) ) {
 					$adjacentFocusTarget = self.container.next().find( '.widget-action:first' );
@@ -1015,12 +1017,12 @@
 					sidebarWidgetIds.splice( i, 1 );
 					sidebarsWidgetsControl.setting( sidebarWidgetIds );
 
-					$adjacentFocusTarget.focus(); // keyboard accessibility
+					$adjacentFocusTarget.focus(); // Keyboard accessibility.
 				} );
 			} );
 
 			replaceDeleteWithRemove = function() {
-				$removeBtn.text( l10n.removeBtnLabel ); // wp_widget_control() outputs the button as "Delete"
+				$removeBtn.text( l10n.removeBtnLabel ); // wp_widget_control() outputs the button as "Delete".
 				$removeBtn.attr( 'title', l10n.removeBtnTooltip );
 			};
 
@@ -1105,7 +1107,7 @@
 				if ( ! $.isArray( state ) ) {
 					state = [];
 				} else {
-					// Make sure all state items are strings since the DOM value is a string
+					// Make sure all state items are strings since the DOM value is a string.
 					state = _.map( state, function ( value ) {
 						return String( value );
 					} );
@@ -1169,7 +1171,7 @@
 			$widgetRoot = this.container.find( '.widget:first' );
 			$widgetContent = $widgetRoot.find( '.widget-content:first' );
 
-			// Remove a previous error message
+			// Remove a previous error message.
 			$widgetContent.find( '.widget-error' ).remove();
 
 			this.container.addClass( 'widget-form-loading' );
@@ -1191,9 +1193,11 @@
 			data = $.param( params );
 			$inputs = this._getInputs( $widgetContent );
 
-			// Store the value we're submitting in data so that when the response comes back,
+			/*
-			// we know if it got sanitized; if there is no difference in the sanitized value,
+			 * Store the value we're submitting in data so that when the response comes back,
-			// then we do not need to touch the UI and mess up the user's ongoing editing.
+			 * we know if it got sanitized; if there is no difference in the sanitized value,
+			 * then we do not need to touch the UI and mess up the user's ongoing editing.
+			 */
 			$inputs.each( function() {
 				$( this ).data( 'state' + updateNumber, self._getInputState( this ) );
 			} );
@@ -1236,14 +1240,14 @@
 					$sanitizedInputs = self._getInputs( sanitizedForm );
 					hasSameInputsInResponse = self._getInputsSignature( $inputs ) === self._getInputsSignature( $sanitizedInputs );
 
-					// Restore live update mode if sanitized fields are now aligned with the existing fields
+					// Restore live update mode if sanitized fields are now aligned with the existing fields.
 					if ( hasSameInputsInResponse && ! self.liveUpdateMode ) {
 						self.liveUpdateMode = true;
 						self.container.removeClass( 'widget-form-disabled' );
 						self.container.find( 'input[name="savewidget"]' ).hide();
 					}
 
-					// Sync sanitized field states to existing fields if they are aligned
+					// Sync sanitized field states to existing fields if they are aligned.
 					if ( hasSameInputsInResponse && self.liveUpdateMode ) {
 						$inputs.each( function( i ) {
 							var $input = $( this ),
@@ -1262,13 +1266,13 @@
 
 						$( document ).trigger( 'widget-synced', [ $widgetRoot, r.data.form ] );
 
-					// Otherwise, if sanitized fields are not aligned with existing fields, disable live update mode if enabled
+					// Otherwise, if sanitized fields are not aligned with existing fields, disable live update mode if enabled.
 					} else if ( self.liveUpdateMode ) {
 						self.liveUpdateMode = false;
 						self.container.find( 'input[name="savewidget"]' ).show();
 						isLiveUpdateAborted = true;
 
-					// Otherwise, replace existing form with the sanitized form
+					// Otherwise, replace existing form with the sanitized form.
 					} else {
 						$widgetContent.html( r.data.form );
 
@@ -1284,11 +1288,11 @@
 					 */
 					isChanged = ! isLiveUpdateAborted && ! _( self.setting() ).isEqual( r.data.instance );
 					if ( isChanged ) {
-						self.isWidgetUpdating = true; // suppress triggering another updateWidget
+						self.isWidgetUpdating = true; // Suppress triggering another updateWidget.
 						self.setting( r.data.instance );
 						self.isWidgetUpdating = false;
 					} else {
-						// no change was made, so stop the spinner now instead of when the preview would updates
+						// No change was made, so stop the spinner now instead of when the preview would updates.
 						self.container.removeClass( 'previewer-loading' );
 					}
 
@@ -1296,7 +1300,7 @@
 						completeCallback.call( self, null, { noChange: ! isChanged, ajaxFinished: true } );
 					}
 				} else {
-					// General error message
+					// General error message.
 					message = l10n.error;
 
 					if ( r.data && r.data.message ) {
@@ -1406,7 +1410,7 @@
 				self.embedWidgetContent();
 			}
 
-			// If the expanded state is unchanged only manipulate container expanded states
+			// If the expanded state is unchanged only manipulate container expanded states.
 			if ( args.unchanged ) {
 				if ( expanded ) {
 					api.Control.prototype.expand.call( self, {
@@ -1422,7 +1426,7 @@
 
 			expandControl = function() {
 
-				// Close all other widget controls before expanding this one
+				// Close all other widget controls before expanding this one.
 				api.control.each( function( otherControl ) {
 					if ( self.params.type === otherControl.params.type && self !== otherControl ) {
 						otherControl.collapse();
@@ -1535,7 +1539,7 @@
 			i = this.getWidgetSidebarPosition();
 
 			sidebarWidgetsSetting = this.getSidebarWidgetsControl().setting;
-			sidebarWidgetIds = Array.prototype.slice.call( sidebarWidgetsSetting() ); // clone
+			sidebarWidgetIds = Array.prototype.slice.call( sidebarWidgetsSetting() ); // Clone.
 			adjacentWidgetId = sidebarWidgetIds[i + offset];
 			sidebarWidgetIds[i + offset] = this.params.widget_id;
 			sidebarWidgetIds[i] = adjacentWidgetId;
@@ -1558,7 +1562,7 @@
 			}
 
 			if ( showOrHide ) {
-				// reset the selected sidebar
+				// Reset the selected sidebar.
 				$moveWidgetArea.find( '.selected' ).removeClass( 'selected' );
 
 				$moveWidgetArea.find( 'li' ).filter( function() {
@@ -1781,7 +1785,7 @@
 
 				removedWidgetIds = _( oldWidgetIds ).difference( newWidgetIds );
 
-				// Filter out any persistent widget IDs for widgets which have been deactivated
+				// Filter out any persistent widget IDs for widgets which have been deactivated.
 				newWidgetIds = _( newWidgetIds ).filter( function( newWidgetId ) {
 					var parsedWidgetId = parseWidgetId( newWidgetId );
 
@@ -1798,7 +1802,7 @@
 					return widgetFormControl;
 				} );
 
-				// Sort widget controls to their new positions
+				// Sort widget controls to their new positions.
 				widgetFormControls.sort( function( a, b ) {
 					var aIndex = _.indexOf( newWidgetIds, a.params.widget_id ),
 						bIndex = _.indexOf( newWidgetIds, b.params.widget_id );
@@ -1811,25 +1815,26 @@
 					control.section( self.section() );
 					priority += 1;
 				});
-				self.priority( priority ); // Make sure sidebar control remains at end
+				self.priority( priority ); // Make sure sidebar control remains at end.
 
-				// Re-sort widget form controls (including widgets form other sidebars newly moved here)
+				// Re-sort widget form controls (including widgets form other sidebars newly moved here).
 				self._applyCardinalOrderClassNames();
 
-				// If the widget was dragged into the sidebar, make sure the sidebar_id param is updated
+				// If the widget was dragged into the sidebar, make sure the sidebar_id param is updated.
 				_( widgetFormControls ).each( function( widgetFormControl ) {
 					widgetFormControl.params.sidebar_id = self.params.sidebar_id;
 				} );
 
-				// Cleanup after widget removal
+				// Cleanup after widget removal.
 				_( removedWidgetIds ).each( function( removedWidgetId ) {
 
-					// Using setTimeout so that when moving a widget to another sidebar, the other sidebars_widgets settings get a chance to update
+					// Using setTimeout so that when moving a widget to another sidebar,
+					// the other sidebars_widgets settings get a chance to update.
 					setTimeout( function() {
 						var removedControl, wasDraggedToAnotherSidebar, inactiveWidgets, removedIdBase,
 							widget, isPresentInAnotherSidebar = false;
 
-						// Check if the widget is in another sidebar
+						// Check if the widget is in another sidebar.
 						api.each( function( otherSetting ) {
 							if ( otherSetting.id === self.setting.id || 0 !== otherSetting.id.indexOf( 'sidebars_widgets[' ) || otherSetting.id === 'sidebars_widgets[wp_inactive_widgets]' ) {
 								return;
@@ -1850,24 +1855,24 @@
 
 						removedControl = api.Widgets.getWidgetFormControlForWidget( removedWidgetId );
 
-						// Detect if widget control was dragged to another sidebar
+						// Detect if widget control was dragged to another sidebar.
 						wasDraggedToAnotherSidebar = removedControl && $.contains( document, removedControl.container[0] ) && ! $.contains( self.$sectionContent[0], removedControl.container[0] );
 
-						// Delete any widget form controls for removed widgets
+						// Delete any widget form controls for removed widgets.
 						if ( removedControl && ! wasDraggedToAnotherSidebar ) {
 							api.control.remove( removedControl.id );
 							removedControl.container.remove();
 						}
 
-						// Move widget to inactive widgets sidebar (move it to trash) if has been previously saved
+						// Move widget to inactive widgets sidebar (move it to trash) if has been previously saved.
-						// This prevents the inactive widgets sidebar from overflowing with throwaway widgets
+						// This prevents the inactive widgets sidebar from overflowing with throwaway widgets.
 						if ( api.Widgets.savedWidgetIds[removedWidgetId] ) {
 							inactiveWidgets = api.value( 'sidebars_widgets[wp_inactive_widgets]' )().slice();
 							inactiveWidgets.push( removedWidgetId );
 							api.value( 'sidebars_widgets[wp_inactive_widgets]' )( _( inactiveWidgets ).unique() );
 						}
 
-						// Make old single widget available for adding again
+						// Make old single widget available for adding again.
 						removedIdBase = parseWidgetId( removedWidgetId ).id_base;
 						widget = api.Widgets.availableWidgets.findWhere( { id_base: removedIdBase } );
 						if ( widget && ! widget.get( 'is_multi' ) ) {
@@ -1916,9 +1921,9 @@
 				over: function() {
 					var section = api.section( self.section.get() );
 					section.expand({
-						allowMultiple: true, // Prevent the section being dragged from to be collapsed
+						allowMultiple: true, // Prevent the section being dragged from to be collapsed.
 						completeCallback: function () {
-							// @todo It is not clear when refreshPositions should be called on which sections, or if it is even needed
+							// @todo It is not clear when refreshPositions should be called on which sections, or if it is even needed.
 							api.section.each( function ( otherSection ) {
 								if ( otherSection.container.find( '.customize-control-sidebar_widgets' ).length ) {
 									otherSection.container.find( '.accordion-section-content:first' ).sortable( 'refreshPositions' );
@@ -2079,7 +2084,7 @@
 				return false;
 			}
 
-			// Set up new multi widget
+			// Set up new multi widget.
 			if ( widget.get( 'is_multi' ) && ! widgetNumber ) {
 				widget.set( 'multi_number', widget.get( 'multi_number' ) + 1 );
 				widgetNumber = widget.get( 'multi_number' );
@@ -2091,7 +2096,7 @@
 					return m.replace( /__i__|%i%/g, widgetNumber );
 				} );
 			} else {
-				widget.set( 'is_disabled', true ); // Prevent single widget from being added again now
+				widget.set( 'is_disabled', true ); // Prevent single widget from being added again now.
 			}
 
 			$widget = $( controlHtml );
@@ -2101,7 +2106,7 @@
 				.addClass( 'customize-control-' + controlType )
 				.append( $widget );
 
-			// Remove icon which is visible inside the panel
+			// Remove icon which is visible inside the panel.
 			controlContainer.find( '> .widget-icon' ).remove();
 
 			if ( widget.get( 'is_multi' ) ) {
@@ -2111,7 +2116,7 @@
 
 			widgetId = controlContainer.find( '[name="widget-id"]' ).val();
 
-			controlContainer.hide(); // to be slid-down below
+			controlContainer.hide(); // To be slid-down below.
 
 			settingId = 'widget_' + widget.get( 'id_base' );
 			if ( widget.get( 'is_multi' ) ) {
@@ -2119,7 +2124,7 @@
 			}
 			controlContainer.attr( 'id', 'customize-control-' + settingId.replace( /\]/g, '' ).replace( /\[/g, '-' ) );
 
-			// Only create setting if it doesn't already exist (if we're adding a pre-existing inactive widget)
+			// Only create setting if it doesn't already exist (if we're adding a pre-existing inactive widget).
 			isExistingWidget = api.has( settingId );
 			if ( ! isExistingWidget ) {
 				settingArgs = {
@@ -2127,7 +2132,7 @@
 					previewer: this.setting.previewer
 				};
 				setting = api.create( settingId, settingId, '', settingArgs );
-				setting.set( {} ); // mark dirty, changing from '' to {}
+				setting.set( {} ); // Mark dirty, changing from '' to {}.
 			}
 
 			controlConstructor = api.controlConstructor[controlType];
@@ -2147,7 +2152,7 @@
 			} );
 			api.control.add( widgetFormControl );
 
-			// Make sure widget is removed from the other sidebars
+			// Make sure widget is removed from the other sidebars.
 			api.each( function( otherSetting ) {
 				if ( otherSetting.id === self.setting.id ) {
 					return;
@@ -2166,7 +2171,7 @@
 				}
 			} );
 
-			// Add widget to this sidebar
+			// Add widget to this sidebar.
 			sidebarWidgets = this.setting().slice();
 			if ( -1 === _.indexOf( sidebarWidgets, widgetId ) ) {
 				sidebarWidgets.push( widgetId );
@@ -2185,7 +2190,7 @@
 		}
 	} );
 
-	// Register models for custom panel, section, and control types
+	// Register models for custom panel, section, and control types.
 	$.extend( api.panelConstructor, {
 		widgets: api.Widgets.WidgetsPanel
 	});
@@ -2201,15 +2206,15 @@
 	 * Init Customizer for widgets.
 	 */
 	api.bind( 'ready', function() {
-		// Set up the widgets panel
+		// Set up the widgets panel.
 		api.Widgets.availableWidgetsPanel = new api.Widgets.AvailableWidgetsPanelView({
 			collection: api.Widgets.availableWidgets
 		});
 
-		// Highlight widget control
+		// Highlight widget control.
 		api.previewer.bind( 'highlight-widget-control', api.Widgets.highlightWidgetFormControl );
 
-		// Open and focus widget control
+		// Open and focus widget control.
 		api.previewer.bind( 'focus-widget-control', api.Widgets.focusWidgetFormControl );
 	} );
 
@@ -2247,7 +2252,7 @@
 	api.Widgets.getSidebarWidgetControlContainingWidget = function( widgetId ) {
 		var foundControl = null;
 
-		// @todo this can use widgetIdToSettingId(), then pass into wp.customize.control( x ).getSidebarWidgetsControl()
+		// @todo This can use widgetIdToSettingId(), then pass into wp.customize.control( x ).getSidebarWidgetsControl().
 		api.control.each( function( control ) {
 			if ( control.params.type === 'sidebar_widgets' && -1 !== _.indexOf( control.setting(), widgetId ) ) {
 				foundControl = control;
@@ -2266,7 +2271,7 @@
 	api.Widgets.getWidgetFormControlForWidget = function( widgetId ) {
 		var foundControl = null;
 
-		// @todo We can just use widgetIdToSettingId() here
+		// @todo We can just use widgetIdToSettingId() here.
 		api.control.each( function( control ) {
 			if ( control.params.type === 'widget_form' && control.params.widget_id === widgetId ) {
 				foundControl = control;
@@ -2343,7 +2348,7 @@
 			parsed.id_base = matches[1];
 			parsed.number = parseInt( matches[2], 10 );
 		} else {
-			// likely an old single widget
+			// Likely an old single widget.
 			parsed.id_base = widgetId;
 		}
 

wp-admin/js/edit-comments.js

@@ -192,7 +192,7 @@ var getCount, updateCount, updateCountText, updatePending, updateApproved,
 		var newTitle, regExMatch, titleCount, commentFrag;
 
 		titleRegEx = titleRegEx || new RegExp( adminCommentsL10n.docTitleCommentsCount.replace( '%s', '\\([0-9' + thousandsSeparator + ']+\\)' ) + '?' );
-		// count funcs operate on a $'d element
+		// Count funcs operate on a $'d element.
 		titleDiv = titleDiv || $( '<div />' );
 		newTitle = adminTitle;
 
@@ -256,7 +256,7 @@ var getCount, updateCount, updateCountText, updatePending, updateApproved,
 			return;
 		}
 
-		// cache selectors to not get dupes
+		// Cache selectors to not get dupes.
 		pending = $( 'span.' + pendingClass, postSelector );
 		noPending = $( 'span.' + noClass, postSelector );
 
@@ -444,7 +444,7 @@ window.setCommentsList = function() {
 
 			a.click(function( e ){
 				e.preventDefault();
-				e.stopPropagation(); // ticket #35904
+				e.stopPropagation(); // Ticket #35904.
 				list.wpList.del(this);
 				$('#undo-' + id).css( {backgroundColor:'#ceb'} ).fadeOut(350, function(){
 					$(this).remove();
@@ -491,17 +491,19 @@ window.setCommentsList = function() {
 			unapproved = commentRow.hasClass( 'unapproved' ),
 			spammed = commentRow.hasClass( 'spam' ),
 			trashed = commentRow.hasClass( 'trash' ),
-			undoing = false; // ticket #35904
+			undoing = false; // Ticket #35904.
 
 		updateDashboardText( newTotal );
 		updateInModerationText( newTotal );
 
-		// the order of these checks is important
+		/*
-		// .unspam can also have .approve or .unapprove
+		 * The order of these checks is important.
-		// .untrash can also have .approve or .unapprove
+		 * .unspam can also have .approve or .unapprove.
+		 * .untrash can also have .approve or .unapprove.
+		 */
 
 		if ( targetParent.is( 'span.undo' ) ) {
-			// the comment was spammed
+			// The comment was spammed.
 			if ( targetParent.hasClass( 'unspam' ) ) {
 				spamDiff = -1;
 
@@ -513,7 +515,7 @@ window.setCommentsList = function() {
 					pendingDiff = 1;
 				}
 
-			// the comment was trashed
+			// The comment was trashed.
 			} else if ( targetParent.hasClass( 'untrash' ) ) {
 				trashDiff = -1;
 
@@ -528,32 +530,32 @@ window.setCommentsList = function() {
 
 			undoing = true;
 
-		// user clicked "Spam"
+		// User clicked "Spam".
 		} else if ( targetParent.is( 'span.spam' ) ) {
-			// the comment is currently approved
+			// The comment is currently approved.
 			if ( approved ) {
 				approvedDiff = -1;
-			// the comment is currently pending
+			// The comment is currently pending.
 			} else if ( unapproved ) {
 				pendingDiff = -1;
-			// the comment was in the trash
+			// The comment was in the trash.
 			} else if ( trashed ) {
 				trashDiff = -1;
 			}
-			// you can't spam an item on the spam screen
+			// You can't spam an item on the Spam screen.
 			spamDiff = 1;
 
-		// user clicked "Unspam"
+		// User clicked "Unspam".
 		} else if ( targetParent.is( 'span.unspam' ) ) {
 			if ( approved ) {
 				pendingDiff = 1;
 			} else if ( unapproved ) {
 				approvedDiff = 1;
 			} else if ( trashed ) {
-				// the comment was previously approved
+				// The comment was previously approved.
 				if ( targetParent.hasClass( 'approve' ) ) {
 					approvedDiff = 1;
-				// the comment was previously pending
+				// The comment was previously pending.
 				} else if ( targetParent.hasClass( 'unapprove' ) ) {
 					pendingDiff = 1;
 				}
@@ -565,23 +567,23 @@ window.setCommentsList = function() {
 					pendingDiff = 1;
 				}
 			}
-			// you can Unspam an item on the spam screen
+			// You can unspam an item on the Spam screen.
 			spamDiff = -1;
 
-		// user clicked "Trash"
+		// User clicked "Trash".
 		} else if ( targetParent.is( 'span.trash' ) ) {
 			if ( approved ) {
 				approvedDiff = -1;
 			} else if ( unapproved ) {
 				pendingDiff = -1;
-			// the comment was in the spam queue
+			// The comment was in the spam queue.
 			} else if ( spammed ) {
 				spamDiff = -1;
 			}
-			// you can't trash an item on the trash screen
+			// You can't trash an item on the Trash screen.
 			trashDiff = 1;
 
-		// user clicked "Restore"
+		// User clicked "Restore".
 		} else if ( targetParent.is( 'span.untrash' ) ) {
 			if ( approved ) {
 				pendingDiff = 1;
@@ -594,21 +596,21 @@ window.setCommentsList = function() {
 					pendingDiff = 1;
 				}
 			}
-			// you can't go from trash to spam
+			// You can't go from Trash to Spam.
-			// you can untrash on the trash screen
+			// You can untrash on the Trash screen.
 			trashDiff = -1;
 
-		// User clicked "Approve"
+		// User clicked "Approve".
 		} else if ( targetParent.is( 'span.approve:not(.unspam):not(.untrash)' ) ) {
 			approvedDiff = 1;
 			pendingDiff = -1;
 
-		// User clicked "Unapprove"
+		// User clicked "Unapprove".
 		} else if ( targetParent.is( 'span.unapprove:not(.unspam):not(.untrash)' ) ) {
 			approvedDiff = -1;
 			pendingDiff = 1;
 
-		// User clicked "Delete Permanently"
+		// User clicked "Delete Permanently".
 		} else if ( targetParent.is( 'span.delete' ) ) {
 			if ( spammed ) {
 				spamDiff = -1;
@@ -713,17 +715,17 @@ window.setCommentsList = function() {
 
 		if (ev) {
 			theExtraList.empty();
-			args.number = Math.min(8, per_page); // see WP_Comments_List_Table::prepare_items() @ class-wp-comments-list-table.php
+			args.number = Math.min(8, per_page); // See WP_Comments_List_Table::prepare_items() in class-wp-comments-list-table.php.
 		} else {
 			args.number = 1;
-			args.offset = Math.min(8, per_page) - 1; // fetch only the next item on the extra list
+			args.offset = Math.min(8, per_page) - 1; // Fetch only the next item on the extra list.
 		}
 
 		args.no_placeholder = true;
 
 		args.paged ++;
 
-		// $.query.get() needs some correction to be sent into an ajax request
+		// $.query.get() needs some correction to be sent into an Ajax request.
 		if ( true === args.comment_type )
 			args.comment_type = '';
 
@@ -781,9 +783,9 @@ window.commentReply = {
 	/**
 	 * Initializes the comment reply functionality.
 	 *
-	 * @memberof commentReply
-	 *
 	 * @since 2.7.0
+	 *
+	 * @memberof commentReply
 	 */
 	init : function() {
 		var row = $('#replyrow');
@@ -798,7 +800,7 @@ window.commentReply = {
 			}
 		});
 
-		// add events
+		// Add events.
 		$('#the-comment-list .column-comment > p').dblclick(function(){
 			commentReply.toggle($(this).parent());
 		});
@@ -911,7 +913,7 @@ window.commentReply = {
 				.focus();
 		}
 
-		// reset the Quicktags buttons
+		// Reset the Quicktags buttons.
  		if ( typeof QTags != 'undefined' )
 			QTags.closeAllTags('replycontent');
 
@@ -1029,7 +1031,7 @@ window.commentReply = {
 
 			$('#replycontent').focus().keyup(function(e){
 				if ( e.which == 27 )
-					commentReply.revert(); // close on Escape
+					commentReply.revert(); // Close on Escape.
 			});
 		}, 600);
 
@@ -1130,7 +1132,7 @@ window.commentReply = {
 			updateCountText( 'span.all-count', 1 );
 		}
 
-		c = $.trim(r.data); // Trim leading whitespaces
+		c = $.trim(r.data); // Trim leading whitespaces.
 		$(c).hide();
 		$('#replyrow').after(c);
 

wp-admin/js/editor-expand.js

@@ -246,10 +246,11 @@
 			function mceKeyup( event ) {
 				var key = event.keyCode;
 
-				// Bail on special keys. Key code 47 is a /
+				// Bail on special keys. Key code 47 is a '/'.
 				if ( key <= 47 && ! ( key === VK.SPACEBAR || key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE || key === VK.UP || key === VK.LEFT || key === VK.DOWN || key === VK.UP ) ) {
 					return;
-				// OS keys, function keys, num lock, scroll lock. Key code 91-93 are OS keys. Key code 112-123 are F1 to F12. Key code 144 is num lock. Key code 145 is scroll lock.
+				// OS keys, function keys, num lock, scroll lock. Key code 91-93 are OS keys.
+				// Key code 112-123 are F1 to F12. Key code 144 is num lock. Key code 145 is scroll lock.
 				} else if ( ( key >= 91 && key <= 93 ) || ( key >= 112 && key <= 123 ) || key === 144 || key === 145 ) {
 					return;
 				}
@@ -516,7 +517,7 @@
 			 * If in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + topHeight.
 			 * If not in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + 20.
 			 */
-			canPin = visual ? autoresizeMinHeight + topHeight : autoresizeMinHeight + 20; // 20px from textarea padding
+			canPin = visual ? autoresizeMinHeight + topHeight : autoresizeMinHeight + 20; // 20px from textarea padding.
 			canPin = editorHeight > ( canPin + 5 );
 
 			if ( ! canPin ) {
@@ -910,7 +911,7 @@
 			// Adjust when entering or exiting fullscreen mode.
 			fullscreen && fullscreen.pubsub.unsubscribe( 'hidden', fullscreenHide );
 
-			// Reset all css
+			// Reset all CSS.
 			$.each( [ $visualTop, $textTop, $tools, $menuBar, $bottom, $statusBar, $contentWrap, $visualEditor, $textEditor, $sideSortables ], function( i, element ) {
 				element && element.attr( 'style', '' );
 			});
@@ -1179,15 +1180,15 @@
 
 			// Return if any of the following keys or combinations of keys is pressed.
 			if ( event && ( event.metaKey || ( event.ctrlKey && ! event.altKey ) || ( event.altKey && event.shiftKey ) || ( key && (
-				// Special keys ( tab, ctrl, alt, esc, arrow keys... )
+				// Special keys ( tab, ctrl, alt, esc, arrow keys... ).
 				( key <= 47 && key !== 8 && key !== 13 && key !== 32 && key !== 46 ) ||
-				// Windows keys
+				// Windows keys.
 				( key >= 91 && key <= 93 ) ||
-				// F keys
+				// F keys.
 				( key >= 112 && key <= 135 ) ||
-				// Num Lock, Scroll Lock, OEM
+				// Num Lock, Scroll Lock, OEM.
 				( key >= 144 && key <= 150 ) ||
-				// OEM or non-printable
+				// OEM or non-printable.
 				key >= 224
 			) ) ) ) {
 				return;

wp-admin/js/editor.js

@@ -112,7 +112,7 @@ window.wp = window.wp || {};
 				}
 
 				if ( keepSelection ) {
-					// Save the selection
+					// Save the selection.
 					addHTMLBookmarkInTextAreaContent( $textarea );
 				}
 
@@ -131,7 +131,7 @@ window.wp = window.wp || {};
 					}
 
 					if ( editor.getParam( 'wp_keep_scroll_position' ) ) {
-						// Restore the selection
+						// Restore the selection.
 						focusHTMLBookmarkInVisualEditor( editor );
 					}
 				} else {
@@ -149,7 +149,8 @@ window.wp = window.wp || {};
 				}
 
 				if ( editor ) {
-					// Don't resize the textarea in iOS. The iframe is forced to 100% height there, we shouldn't match it.
+					// Don't resize the textarea in iOS.
+					// The iframe is forced to 100% height there, we shouldn't match it.
 					if ( ! tinymce.Env.iOS ) {
 						iframe = editor.iframeElement;
 						editorHeight = iframe ? parseInt( iframe.style.height, 10 ) : 0;
@@ -177,7 +178,8 @@ window.wp = window.wp || {};
 						selectTextInTextArea( editor, selectionRange );
 					}
 				} else {
-					// There is probably a JS error on the page. The TinyMCE editor instance doesn't exist. Show the textarea.
+					// There is probably a JS error on the page.
+					// The TinyMCE editor instance doesn't exist. Show the textarea.
 					$textarea.css({ 'display': '', 'visibility': '' });
 				}
 
@@ -209,7 +211,7 @@ window.wp = window.wp || {};
 				lastGtPos = content.lastIndexOf( '>', cursorPosition );
 
 			if ( lastLtPos > lastGtPos || content.substr( cursorPosition, 1 ) === '>' ) {
-				// find what the tag is
+				// Find what the tag is.
 				var tagContent = content.substr( lastLtPos ),
 					tagMatch = tagContent.match( /<\s*(\/)?(\w+|\!-{2}.*-{2})/ );
 
@@ -222,7 +224,7 @@ window.wp = window.wp || {};
 
 				return {
 					ltPos: lastLtPos,
-					gtPos: lastLtPos + closingGt + 1, // offset by one to get the position _after_ the character,
+					gtPos: lastLtPos + closingGt + 1, // Offset by one to get the position _after_ the character.
 					tagType: tagType,
 					isClosingTag: !! tagMatch[1]
 				};
@@ -403,7 +405,7 @@ window.wp = window.wp || {};
 
 			var cursorStart = cursorPositions.cursorStart,
 				cursorEnd = cursorPositions.cursorEnd,
-				// check if the cursor is in a tag and if so, adjust it
+				// Check if the cursor is in a tag and if so, adjust it.
 				isCursorStartInTag = getContainingTagInfo( content, cursorStart );
 
 			if ( isCursorStartInTag ) {
@@ -506,11 +508,11 @@ window.wp = window.wp || {};
 			}
 
 			textArea.value = [
-				textArea.value.slice( 0, htmlModeCursorStartPosition ), // text until the cursor/selection position
+				textArea.value.slice( 0, htmlModeCursorStartPosition ), // Text until the cursor/selection position.
-				cursorMarkerSkeleton.clone()							// cursor/selection start marker
+				cursorMarkerSkeleton.clone()							// Cursor/selection start marker.
 					.addClass( 'mce_SELRES_start' )[0].outerHTML,
-				selectedText, 											// selected text with end cursor/position marker
+				selectedText, 											// Selected text with end cursor/position marker.
-				textArea.value.slice( htmlModeCursorEndPosition )		// text from last cursor/selection position to end
+				textArea.value.slice( htmlModeCursorEndPosition )		// Text from last cursor/selection position to end.
 			].join( '' );
 		}
 
@@ -804,7 +806,7 @@ window.wp = window.wp || {};
 					endMatchIndex -= endMatch[1].length;
 				}
 
-				// We need to adjust the end position to discard the length of the range start marker
+				// We need to adjust the end position to discard the length of the range start marker.
 				endIndex = endMatchIndex - startMatchLength;
 			}
 
@@ -826,7 +828,7 @@ window.wp = window.wp || {};
 		 * @param {Object} selection Selection data.
 		 */
 		function selectTextInTextArea( editor, selection ) {
-			// only valid in the text area mode and if we have selection
+			// Only valid in the text area mode and if we have selection.
 			if ( ! selection ) {
 				return;
 			}
@@ -836,11 +838,11 @@ window.wp = window.wp || {};
 				end = selection.end || selection.start;
 
 			if ( textArea.focus ) {
-				// Wait for the Visual editor to be hidden, then focus and scroll to the position
+				// Wait for the Visual editor to be hidden, then focus and scroll to the position.
 				setTimeout( function() {
 					textArea.setSelectionRange( start, end );
 					if ( textArea.blur ) {
-						// defocus before focusing
+						// Defocus before focusing.
 						textArea.blur();
 					}
 					textArea.focus();
@@ -1249,7 +1251,7 @@ window.wp = window.wp || {};
 
 		defaults = wp.editor.getDefaultSettings();
 
-		// Initialize TinyMCE by default
+		// Initialize TinyMCE by default.
 		if ( ! settings ) {
 			settings = {
 				tinymce: true

wp-admin/js/gallery.js

@@ -15,7 +15,7 @@ jQuery(document).ready(function($) {
 			distance: 2,
 			handle: 'div.filename',
 			stop: function() {
-				// When an update has occurred, adjust the order for each item
+				// When an update has occurred, adjust the order for each item.
 				var all = $('#media-items').sortable('toArray'), len = all.length;
 				$.each(all, function(i, id) {
 					var order = desc ? (len - i) : (1 + i);
@@ -71,7 +71,7 @@ jQuery(document).ready(function($) {
 		$('img.pinkynail').toggle(true);
 	});
 
-	// initialize sortable
+	// Initialize sortable.
 	gallerySortableInit();
 	clearAll();
 
@@ -88,7 +88,7 @@ jQuery(document).ready(function($) {
 	}
 });
 
-jQuery(window).unload( function () { window.tinymce = window.tinyMCE = window.wpgallery = null; } ); // Cleanup
+jQuery(window).unload( function () { window.tinymce = window.tinyMCE = window.wpgallery = null; } ); // Cleanup.
 
 /* gallery settings */
 window.tinymce = null;
@@ -122,7 +122,7 @@ window.wpgallery = {
 			document.domain = q.mce_rdomain;
 		}
 
-		// Find window & API
+		// Find window & API.
 		window.tinymce = w.tinymce;
 		window.tinyMCE = w.tinyMCE;
 		t.editor = tinymce.EditorManager.activeEditor;

wp-admin/js/image-edit.js

@@ -48,9 +48,10 @@
 	/**
 	 * Converts a value to an integer.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} f The float value that should be converted.
 	 *
 	 * @return {number} The integer representation from the float value.
@@ -66,9 +67,10 @@
 	/**
 	 * Adds the disabled attribute and class to a single form element or a field set.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {jQuery}         el The element that should be modified.
 	 * @param {bool|number}    s  The state for the element. If set to true
 	 *                            the element is disabled,
@@ -95,9 +97,10 @@
 	/**
 	 * Initializes the image editor.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 *
 	 * @return {void}
@@ -121,12 +124,12 @@
 		$('input[type="text"]', '#imgedit-panel-' + postid).keypress(function(e) {
 			var k = e.keyCode;
 
-			// Key codes 37 thru 40 are the arrow keys.
+			// Key codes 37 through 40 are the arrow keys.
 			if ( 36 < k && k < 41 ) {
 				$(this).blur();
 			}
 
-			// The key code 13 is the enter key.
+			// The key code 13 is the Enter key.
 			if ( 13 === k ) {
 				e.preventDefault();
 				e.stopPropagation();
@@ -138,9 +141,10 @@
 	/**
 	 * Toggles the wait/load icon in the editor.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 * @param {number} toggle Is 0 or 1, fades the icon in then 1 and out when 0.
 	 *
@@ -159,9 +163,10 @@
 	/**
 	 * Shows or hides the image edit help box.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {HTMLElement} el The element to create the help window in.
 	 *
 	 * @return {boolean} Always returns false.
@@ -181,9 +186,10 @@
 	 * The image edit target contains the image sizes where the (possible) changes
 	 * have to be applied to.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 *
 	 * @return {string} The value from the imagedit-save-target input field when available,
@@ -198,9 +204,10 @@
 	 *
 	 * If the original image size is exceeded a red exclamation mark is shown.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number}         postid The current post id.
 	 * @param {number}         x      Is 0 when it applies the y-axis
 	 *                                and 1 when applicable for the x-axis.
@@ -234,9 +241,10 @@
 	/**
 	 * Gets the selected aspect ratio.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 *
 	 * @return {string} The aspect ratio.
@@ -261,9 +269,10 @@
 	 * Removes the last action from the image edit history.
 	 * The history consist of (edit) actions performed on the image.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid  The post id.
 	 * @param {number} setSize 0 or 1, when 1 the image resets to its original size.
 	 *
@@ -295,13 +304,13 @@
 				// Restore original 'o'.
 				o = history[history.length - 1];
 
-				// c = 'crop', r = 'rotate', f = 'flip'
+				// c = 'crop', r = 'rotate', f = 'flip'.
 				o = o.c || o.r || o.f || false;
 
 				if ( o ) {
-					// fw = Full image width
+					// fw = Full image width.
 					this.hold.w = o.fw;
-					// fh = Full image height
+					// fh = Full image height.
 					this.hold.h = o.fh;
 				}
 			}
@@ -326,9 +335,10 @@
 	 *
 	 * When the image source is reloaded the image will be reloaded.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number}   postid   The post id.
 	 * @param {string}   nonce    The nonce to verify the request.
 	 * @param {function} callback Function to execute when the image is loaded.
@@ -371,7 +381,7 @@
 
 				parent.empty().append(img);
 
-				// w, h are the new full size dims
+				// w, h are the new full size dimensions.
 				max1 = Math.max( t.hold.w, t.hold.h );
 				max2 = Math.max( $(img).width(), $(img).height() );
 				t.hold.sizer = max1 > max2 ? max2 / max1 : 1;
@@ -399,9 +409,10 @@
 	/**
 	 * Performs an image edit action.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param  {number}  postid The post id.
 	 * @param  {string}  nonce  The nonce to verify the request.
 	 * @param  {string}  action The action to perform on the image.
@@ -456,7 +467,7 @@
 		$.post(ajaxurl, data, function(r) {
 			$('#image-editor-' + postid).empty().append(r);
 			t.toggleEditor(postid, 0);
-			// refresh the attachment model so that changes propagate
+			// Refresh the attachment model so that changes propagate.
 			if ( t._view ) {
 				t._view.refresh();
 			}
@@ -466,9 +477,10 @@
 	/**
 	 * Stores the changes that are made to the image.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number}  postid   The post id to get the image from the database.
 	 * @param {string}  nonce    The nonce to verify the request.
 	 *
@@ -531,9 +543,10 @@
 	/**
 	 * Creates the image edit window.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid   The post id for the image.
 	 * @param {string} nonce    The nonce to verify the request.
 	 * @param {object} view     The image editor view to be used for the editing.
@@ -588,9 +601,10 @@
 	/**
 	 * Initializes the cropping tool and sets a default cropping selection.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 *
 	 * @return {void}
@@ -614,9 +628,10 @@
 	/**
 	 * Initializes the cropping tool.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number}      postid The post id.
 	 * @param {HTMLElement} image  The preview image.
 	 * @param {HTMLElement} parent The preview image container.
@@ -645,8 +660,8 @@
 			 * @param {jQuery} img The preview image.
 			 */
 			onInit: function( img ) {
-				// Ensure that the imgAreaSelect wrapper elements are position:absolute.
+				// Ensure that the imgAreaSelect wrapper elements are position:absolute
-				// (even if we're in a position:fixed modal)
+				// (even if we're in a position:fixed modal).
 				$img = $( img );
 				$img.next().css( 'position', 'absolute' )
 					.nextAll( '.imgareaselect-outer' ).css( 'position', 'absolute' );
@@ -715,9 +730,10 @@
 	/**
 	 * Stores the current crop selection.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 * @param {object} c      The selection.
 	 *
@@ -746,9 +762,10 @@
 	/**
 	 * Closes the image editor.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number}  postid The post id.
 	 * @param {bool}    warn   Warning message.
 	 *
@@ -764,13 +781,14 @@
 		this.iasapi = {};
 		this.hold = {};
 
-		// If we've loaded the editor in the context of a Media Modal, then switch to the previous view,
+		// If we've loaded the editor in the context of a Media Modal,
-		// whatever that might have been.
+		// then switch to the previous view, whatever that might have been.
 		if ( this._view ){
 			this._view.back();
 		}
 
-		// In case we are not accessing the image editor in the context of a View, close the editor the old-skool way
+		// In case we are not accessing the image editor in the context of a View,
+		// close the editor the old-school way.
 		else {
 			$('#image-editor-' + postid).fadeOut('fast', function() {
 				$( '#media-head-' + postid ).fadeIn( 'fast', function() {
@@ -787,9 +805,10 @@
 	/**
 	 * Checks if the image edit history is saved.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 *
 	 * @return {boolean} Returns true if the history is not saved.
@@ -811,9 +830,10 @@
 	/**
 	 * Adds an image edit action to the history.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {object} op     The original position.
 	 * @param {number} postid The post id.
 	 * @param {string} nonce  The nonce.
@@ -830,7 +850,7 @@
 			history.pop();
 			pop--;
 		}
-		undone.val(0); // reset
+		undone.val(0); // Reset.
 
 		history.push(op);
 		elem.val( JSON.stringify(history) );
@@ -844,9 +864,10 @@
 	/**
 	 * Rotates the image.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {string} angle  The angle the image is rotated with.
 	 * @param {number} postid The post id.
 	 * @param {string} nonce  The nonce.
@@ -865,9 +886,10 @@
 	/**
 	 * Flips the image.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} axis   The axle the image is flipped on.
 	 * @param {number} postid The post id.
 	 * @param {string} nonce  The nonce.
@@ -886,9 +908,10 @@
 	/**
 	 * Crops the image.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 * @param {string} nonce  The nonce.
 	 * @param {object} t      The target object.
@@ -915,9 +938,10 @@
 	/**
 	 * Undoes an image edit action.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid   The post id.
 	 * @param {string} nonce    The nonce.
 	 *
@@ -948,9 +972,10 @@
 	/**
 	 * Reverts a undo action.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 * @param {string} nonce  The nonce.
 	 *
@@ -978,9 +1003,10 @@
 	/**
 	 * Sets the selection for the height and width in pixels.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid The post id.
 	 * @param {jQuery} el     The element containing the values.
 	 *
@@ -1035,9 +1061,10 @@
 	/**
 	 * Rounds a number to a whole.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} num The number.
 	 *
 	 * @return {number} The number rounded to a whole number.
@@ -1064,9 +1091,10 @@
 	/**
 	 * Sets a locked aspect ratio for the selection.
 	 *
-	 * @memberof imageEdit
 	 * @since 2.9.0
 	 *
+	 * @memberof imageEdit
+	 *
 	 * @param {number} postid     The post id.
 	 * @param {number} n          The ratio to set.
 	 * @param {jQuery} el         The element containing the values.
@@ -1108,8 +1136,9 @@
 	/**
 	 * Validates if a value in a jQuery.HTMLElement is numeric.
 	 *
+	 * @since 4.6.0
+	 *
 	 * @memberof imageEdit
-	 * @since    4.6
 	 *
 	 * @param {jQuery} el The html element.
 	 *

wp-admin/js/inline-edit-post.js

@@ -29,41 +29,42 @@ window.wp = window.wp || {};
 	/**
 	 * Initializes the inline and bulk post editor.
 	 *
-	 * Binds event handlers to the escape key to close the inline editor
+	 * Binds event handlers to the Escape key to close the inline editor
 	 * and to the save and close buttons. Changes DOM to be ready for inline
 	 * editing. Adds event handler to bulk edit.
 	 *
-	 * @memberof inlineEditPost
 	 * @since 2.7.0
 	 *
+	 * @memberof inlineEditPost
+	 *
 	 * @return {void}
 	 */
 	init : function(){
 		var t = this, qeRow = $('#inline-edit'), bulkRow = $('#bulk-edit');
 
 		t.type = $('table.widefat').hasClass('pages') ? 'page' : 'post';
-		// Post id prefix.
+		// Post ID prefix.
 		t.what = '#post-';
 
 		/**
-		 * Binds the escape key to revert the changes and close the quick editor.
+		 * Binds the Escape key to revert the changes and close the quick editor.
 		 *
 		 * @return {boolean} The result of revert.
 		 */
 		qeRow.keyup(function(e){
-			// Revert changes if escape key is pressed.
+			// Revert changes if Escape key is pressed.
 			if ( e.which === 27 ) {
 				return inlineEditPost.revert();
 			}
 		});
 
 		/**
-		 * Binds the escape key to revert the changes and close the bulk editor.
+		 * Binds the Escape key to revert the changes and close the bulk editor.
 		 *
 		 * @return {boolean} The result of revert.
 		 */
 		bulkRow.keyup(function(e){
-			// Revert changes if escape key is pressed.
+			// Revert changes if Escape key is pressed.
 			if ( e.which === 27 ) {
 				return inlineEditPost.revert();
 			}
@@ -88,7 +89,7 @@ window.wp = window.wp || {};
 		});
 
 		/**
-		 * If enter is pressed, and the target is not the cancel button, save the post.
+		 * If Enter is pressed, and the target is not the cancel button, save the post.
 		 *
 		 * @return {boolean} The result of save.
 		 */
@@ -157,9 +158,10 @@ window.wp = window.wp || {};
 	 * Toggles the quick edit window, hiding it when it's active and showing it when
 	 * inactive.
 	 *
-	 * @memberof inlineEditPost
 	 * @since 2.7.0
 	 *
+	 * @memberof inlineEditPost
+	 *
 	 * @param {Object} el Element within a post table row.
 	 */
 	toggle : function(el){
@@ -170,8 +172,9 @@ window.wp = window.wp || {};
 	/**
 	 * Creates the bulk editor row to edit multiple posts at once.
 	 *
-	 * @memberof inlineEditPost
 	 * @since 2.7.0
+	 *
+	 * @memberof inlineEditPost
 	 */
 	setBulk : function(){
 		var te = '', type = this.type, c = true;
@@ -242,9 +245,10 @@ window.wp = window.wp || {};
 	/**
 	 * Creates a quick edit window for the post that has been clicked.
 	 *
-	 * @memberof inlineEditPost
 	 * @since 2.7.0
 	 *
+	 * @memberof inlineEditPost
+	 *
 	 * @param {number|Object} id The id of the clicked post or an element within a post
 	 *                           table row.
 	 * @return {boolean} Always returns false at the end of execution.
@@ -409,7 +413,7 @@ window.wp = window.wp || {};
 		fields = $('#edit-'+id).find(':input').serialize();
 		params = fields + '&' + $.param(params);
 
-		// Make ajax request.
+		// Make Ajax request.
 		$.post( ajaxurl, params,
 			function(r) {
 				var $errorNotice = $( '#edit-' + id + ' .inline-edit-save .notice-error' ),
@@ -450,9 +454,10 @@ window.wp = window.wp || {};
 	/**
 	 * Hides and empties the Quick Edit and/or Bulk Edit windows.
 	 *
-	 * @memberof    inlineEditPost
 	 * @since 2.7.0
 	 *
+	 * @memberof inlineEditPost
+	 *
 	 * @return {boolean} Always returns false.
 	 */
 	revert : function(){
@@ -494,9 +499,10 @@ window.wp = window.wp || {};
 	 * Gets the id for a the post that you want to quick edit from the row in the quick
 	 * edit table.
 	 *
-	 * @memberof    inlineEditPost
 	 * @since 2.7.0
 	 *
+	 * @memberof inlineEditPost
+	 *
 	 * @param  {Object} o DOM row object to get the id for.
 	 * @return {string}   The post id extracted from the table row in the object.
 	 */
@@ -546,7 +552,7 @@ $( document ).on( 'heartbeat-tick.wp-check-locked-posts', function( e, data ) {
 	}
 }).ready( function() {
 
-	// Set the heartbeat interval to 15 sec.
+	// Set the heartbeat interval to 15 seconds.
 	if ( typeof wp !== 'undefined' && wp.heartbeat ) {
 		wp.heartbeat.interval( 15 );
 	}

wp-admin/js/inline-edit-tax.js

@@ -43,12 +43,12 @@ window.inlineEditTax = {
 		});
 
 		/**
-		 * Cancels inline editing when pressing escape inside the inline editor.
+		 * Cancels inline editing when pressing Escape inside the inline editor.
 		 *
 		 * @param {Object} e The keyup event that has been triggered.
 		 */
 		row.keyup( function( e ) {
-			// 27 = [escape]
+			// 27 = [Escape].
 			if ( e.which === 27 ) {
 				return inlineEditTax.revert();
 			}
@@ -69,10 +69,10 @@ window.inlineEditTax = {
 		});
 
 		/**
-		 * Saves the inline edits when pressing enter inside the inline editor.
+		 * Saves the inline edits when pressing Enter inside the inline editor.
 		 */
 		$( 'input, select', row ).keydown( function( e ) {
-			// 13 = [enter]
+			// 13 = [Enter].
 			if ( e.which === 13 ) {
 				return inlineEditTax.save( this );
 			}
@@ -184,7 +184,7 @@ window.inlineEditTax = {
 		fields = $('#edit-'+id).find(':input').serialize();
 		params = fields + '&' + $.param(params);
 
-		// Do the ajax request to save the data to the server.
+		// Do the Ajax request to save the data to the server.
 		$.post( ajaxurl, params,
 			/**
 			 * Handles the response from the server

wp-admin/js/link.js

@@ -9,7 +9,7 @@ jQuery(document).ready( function($) {
 	var newCat, noSyncChecks = false, syncChecks, catAddAfter;
 
 	$('#link_name').focus();
-	// postboxes
+	// Postboxes.
 	postboxes.add_postbox_toggles('link');
 
 	/**
@@ -33,7 +33,7 @@ jQuery(document).ready( function($) {
 	if ( getUserSetting('cats') )
 		$('#category-tabs a[href="#categories-pop"]').click();
 
-	// Ajax Cat
+	// Ajax Cat.
 	newCat = $('#newcat').one( 'focus', function() { $(this).val( '' ).removeClass( 'form-input-tip' ); } );
 
 	/**

wp-admin/js/media-upload.js

@@ -43,16 +43,16 @@ window.send_to_editor = function( html ) {
 		editor = tinymce.get( wpActiveEditor );
 	}
 
-	// If the editor is set and not hidden, insert the HTML into the content of the
+	// If the editor is set and not hidden,
-	// editor.
+	// insert the HTML into the content of the editor.
 	if ( editor && ! editor.isHidden() ) {
 		editor.execCommand( 'mceInsertContent', false, html );
 	} else if ( hasQuicktags ) {
 		// If quick tags are available, insert the HTML into its content.
 		QTags.insertContent( html );
 	} else {
-		// If neither the TinyMCE editor and the quick tags are available, add the HTML
+		// If neither the TinyMCE editor and the quick tags are available,
-		// to the current active editor.
+		// add the HTML to the current active editor.
 		document.getElementById( wpActiveEditor ).value += html;
 	}
 

wp-admin/js/nav-menu.js

@@ -69,7 +69,7 @@
 		},
 
 		jQueryExtensions : function() {
-			// jQuery extensions
+			// jQuery extensions.
 			$.fn.extend({
 				menuItemDepth : function() {
 					var margin = api.isRTL ? this.eq(0).css('margin-right') : this.eq(0).css('margin-left');
@@ -114,7 +114,7 @@
 							depth = t.menuItemDepth(),
 							newDepth = depth + dir;
 
-						// Change .menu-item-depth-n class
+						// Change .menu-item-depth-n class.
 						t.moveHorizontally( newDepth, depth );
 					});
 				},
@@ -125,10 +125,10 @@
 							diff = newDepth - depth,
 							subItemText = t.find('.is-submenu');
 
-						// Change .menu-item-depth-n class
+						// Change .menu-item-depth-n class.
 						t.updateDepthClass( newDepth, depth ).updateParentMenuItemDBId();
 
-						// If it has children, move those too
+						// If it has children, move those too.
 						if ( children ) {
 							children.each(function() {
 								var t = $(this),
@@ -138,7 +138,7 @@
 							});
 						}
 
-						// Show "Sub item" helper text
+						// Show "Sub item" helper text.
 						if (0 === newDepth)
 							subItemText.hide();
 						else
@@ -153,7 +153,7 @@
 							parentDepth = depth - 1,
 							parent = item.prevAll( '.menu-item-depth-' + parentDepth ).first();
 
-						if ( 0 === depth ) { // Item is on the top level, has no parent
+						if ( 0 === depth ) { // Item is on the top level, has no parent.
 							input.val(0);
 						} else { // Find the parent item, and retrieve its object id.
 							input.val( parent.find( '.menu-item-data-db-id' ).val() );
@@ -191,10 +191,10 @@
 						if ( !checkboxes.length )
 							return false;
 
-						// Show the ajax spinner
+						// Show the Ajax spinner.
 						t.find( '.button-controls .spinner' ).addClass( 'is-active' );
 
-						// Retrieve menu item data
+						// Retrieve menu item data.
 						$(checkboxes).each(function(){
 							var t = $(this),
 								listItemDBIDMatch = re.exec( t.attr('name') ),
@@ -205,9 +205,9 @@
 							menuItems[listItemDBID] = t.closest('li').getItemData( 'add-menu-item', listItemDBID );
 						});
 
-						// Add the items
+						// Add the items.
 						api.addItemToMenu(menuItems, processMethod, function(){
-							// Deselect the items and hide the ajax spinner
+							// Deselect the items and hide the Ajax spinner.
 							checkboxes.prop( 'checked', false );
 							t.find( '.button-controls .select-all' ).prop( 'checked', false );
 							t.find( '.button-controls .spinner' ).removeClass( 'is-active' );
@@ -312,22 +312,22 @@
 			case 'up':
 				newItemPosition = thisItemPosition - 1;
 
-				// Already at top
+				// Already at top.
 				if ( 0 === thisItemPosition )
 					break;
 
-				// If a sub item is moved to top, shift it to 0 depth
+				// If a sub item is moved to top, shift it to 0 depth.
 				if ( 0 === newItemPosition && 0 !== thisItemDepth )
 					thisItem.moveHorizontally( 0, thisItemDepth );
 
-				// If prev item is sub item, shift to match depth
+				// If prev item is sub item, shift to match depth.
 				if ( 0 !== prevItemDepth )
 					thisItem.moveHorizontally( prevItemDepth, thisItemDepth );
 
 				// Does this item have sub items?
 				if ( thisItemChildren ) {
 					items = thisItem.add( thisItemChildren );
-					// Move the entire block
+					// Move the entire block.
 					items.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
 				} else {
 					thisItem.detach().insertBefore( menuItems.eq( newItemPosition ) ).updateParentMenuItemDBId();
@@ -351,40 +351,40 @@
 
 					items.detach().insertAfter( menuItems.eq( thisItemPosition + items.length ) ).updateParentMenuItemDBId();
 				} else {
-					// If next item has sub items, shift depth
+					// If next item has sub items, shift depth.
 					if ( 0 !== nextItemChildren.length )
 						thisItem.moveHorizontally( nextItemDepth, thisItemDepth );
 
-					// Have we reached the bottom
+					// Have we reached the bottom?
 					if ( menuItemsCount === thisItemPosition + 1 )
 						break;
 					thisItem.detach().insertAfter( menuItems.eq( thisItemPosition + 1 ) ).updateParentMenuItemDBId();
 				}
 				break;
 			case 'top':
-				// Already at top
+				// Already at top.
 				if ( 0 === thisItemPosition )
 					break;
 				// Does this item have sub items?
 				if ( thisItemChildren ) {
 					items = thisItem.add( thisItemChildren );
-					// Move the entire block
+					// Move the entire block.
 					items.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 				} else {
 					thisItem.detach().insertBefore( menuItems.eq( 0 ) ).updateParentMenuItemDBId();
 				}
 				break;
 			case 'left':
-				// As far left as possible
+				// As far left as possible.
 				if ( 0 === thisItemDepth )
 					break;
 				thisItem.shiftHorizontally( -1 );
 				break;
 			case 'right':
-				// Can't be sub item at top
+				// Can't be sub item at top.
 				if ( 0 === thisItemPosition )
 					break;
-				// Already sub item of prevItem
+				// Already sub item of prevItem.
 				if ( thisItemData['menu-item-parent-id'] === prevItemId )
 					break;
 				thisItem.shiftHorizontally( 1 );
@@ -402,7 +402,7 @@
 			api.refreshKeyboardAccessibility();
 			api.refreshAdvancedAccessibility();
 
-			// Refresh the accessibility when the user comes close to the item in any way
+			// Refresh the accessibility when the user comes close to the item in any way.
 			menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
 				api.refreshAdvancedAccessibilityOfItem( $( this ).find( 'a.item-edit' ) );
 			} );
@@ -412,7 +412,7 @@
 				api.refreshAdvancedAccessibilityOfItem( $( this ) );
 			} );
 
-			// Links for moving items
+			// Links for moving items.
 			menu.on( 'click', '.menus-move', function () {
 				var $this = $( this ),
 					dir = $this.data( 'dir' );
@@ -433,7 +433,7 @@
 		 */
 		refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 
-			// Only refresh accessibility when necessary
+			// Only refresh accessibility when necessary.
 			if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
 				return;
 			}
@@ -494,7 +494,7 @@
 				itemPosition = primaryItems.index( menuItem ) + 1,
 				totalMenuItems = primaryItems.length,
 
-				// String together help text for primary menu items
+				// String together help text for primary menu items.
 				title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
 			} else {
 				parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
@@ -503,13 +503,13 @@
 				subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
 				itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 
-				// String together help text for sub menu items
+				// String together help text for sub menu items.
 				title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
 			}
 
 			$this.attr( 'aria-label', title );
 
-			// Mark this item's accessibility as refreshed
+			// Mark this item's accessibility as refreshed.
 			$this.data( 'needs_accessibility_refresh', false );
 		},
 
@@ -523,10 +523,10 @@
 			// Hide all the move buttons by default.
 			$( '.menu-item-settings .field-move .menus-move' ).hide();
 
-			// Mark all menu items as unprocessed
+			// Mark all menu items as unprocessed.
 			$( 'a.item-edit' ).data( 'needs_accessibility_refresh', true );
 
-			// All open items have to be refreshed or they will show no links
+			// All open items have to be refreshed or they will show no links.
 			$( '.menu-item-edit-active a.item-edit' ).each( function() {
 				api.refreshAdvancedAccessibilityOfItem( this );
 			} );
@@ -541,18 +541,18 @@
 						thisItem = $this.parents( 'li.menu-item' ),
 						thisItemData = thisItem.getItemData();
 
-					// Bail if it's not an arrow key
+					// Bail if it's not an arrow key.
 					if ( 37 != e.which && 38 != e.which && 39 != e.which && 40 != e.which )
 						return;
 
-					// Avoid multiple keydown events
+					// Avoid multiple keydown events.
 					$this.off('keydown');
 
-					// Bail if there is only one menu item
+					// Bail if there is only one menu item.
 					if ( 1 === $('#menu-to-edit li').length )
 						return;
 
-					// If RTL, swap left/right arrows
+					// If RTL, swap left/right arrows.
 					arrows = { '38': 'up', '40': 'down', '37': 'left', '39': 'right' };
 					if ( $('body').hasClass('rtl') )
 						arrows = { '38' : 'up', '40' : 'down', '39' : 'left', '37' : 'right' };
@@ -571,7 +571,7 @@
 						api.moveMenuItem( $this, 'right' );
 						break;
 					}
-					// Put focus back on same menu item
+					// Put focus back on same menu item.
 					$( '#edit-' + thisItemData['menu-item-db-id'] ).focus();
 					return false;
 				});
@@ -594,10 +594,10 @@
 		},
 
 		initToggles : function() {
-			// init postboxes
+			// Init postboxes.
 			postboxes.add_postbox_toggles('nav-menus');
 
-			// adjust columns functions for menus UI
+			// Adjust columns functions for menus UI.
 			columns.useCheckboxesForHidden();
 			columns.checked = function(field) {
 				$('.field-' + field).removeClass('hidden-field');
@@ -605,7 +605,7 @@
 			columns.unchecked = function(field) {
 				$('.field-' + field).addClass('hidden-field');
 			};
-			// hide fields
+			// Hide fields.
 			api.menuList.hideAdvancedMenuItemFields();
 
 			$('.hide-postbox-tog').click(function () {
@@ -639,7 +639,7 @@
 				start: function(e, ui) {
 					var height, width, parent, children, tempHolder;
 
-					// handle placement for rtl orientation
+					// Handle placement for RTL orientation.
 					if ( api.isRTL )
 						ui.item[0].style.right = 'auto';
 
@@ -649,19 +649,19 @@
 					originalDepth = ui.item.menuItemDepth();
 					updateCurrentDepth(ui, originalDepth);
 
-					// Attach child elements to parent
+					// Attach child elements to parent.
-					// Skip the placeholder
+					// Skip the placeholder.
 					parent = ( ui.item.next()[0] == ui.placeholder[0] ) ? ui.item.next() : ui.item;
 					children = parent.childMenuItems();
 					transport.append( children );
 
 					// Update the height of the placeholder to match the moving item.
 					height = transport.outerHeight();
-					// If there are children, account for distance between top of children and parent
+					// If there are children, account for distance between top of children and parent.
 					height += ( height > 0 ) ? (ui.placeholder.css('margin-top').slice(0, -2) * 1) : 0;
 					height += ui.helper.outerHeight();
 					helperHeight = height;
-					height -= 2; // Subtract 2 for borders
+					height -= 2;                                              // Subtract 2 for borders.
 					ui.placeholder.height(height);
 
 					// Update the width of the placeholder to match the moving item.
@@ -670,18 +670,18 @@
 						var depth = $(this).menuItemDepth();
 						maxChildDepth = (depth > maxChildDepth) ? depth : maxChildDepth;
 					});
-					width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width
+					width = ui.helper.find('.menu-item-handle').outerWidth(); // Get original width.
-					width += api.depthToPx(maxChildDepth - originalDepth); // Account for children
+					width += api.depthToPx(maxChildDepth - originalDepth);    // Account for children.
-					width -= 2; // Subtract 2 for borders
+					width -= 2;                                               // Subtract 2 for borders.
 					ui.placeholder.width(width);
 
 					// Update the list of menu items.
 					tempHolder = ui.placeholder.next( '.menu-item' );
-					tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder
+					tempHolder.css( 'margin-top', helperHeight + 'px' ); // Set the margin to absorb the placeholder.
-					ui.placeholder.detach(); // detach or jQuery UI will think the placeholder is a menu item
+					ui.placeholder.detach();         // Detach or jQuery UI will think the placeholder is a menu item.
-					$(this).sortable( 'refresh' ); // The children aren't sortable. We should let jQ UI know.
+					$(this).sortable( 'refresh' );   // The children aren't sortable. We should let jQuery UI know.
-					ui.item.after( ui.placeholder ); // reattach the placeholder.
+					ui.item.after( ui.placeholder ); // Reattach the placeholder.
-					tempHolder.css('margin-top', 0); // reset the margin
+					tempHolder.css('margin-top', 0); // Reset the margin.
 
 					// Now that the element is complete, we can update...
 					updateSharedVars(ui);
@@ -690,31 +690,31 @@
 					var children, subMenuTitle,
 						depthChange = currentDepth - originalDepth;
 
-					// Return child elements to the list
+					// Return child elements to the list.
 					children = transport.children().insertAfter(ui.item);
 
-					// Add "sub menu" description
+					// Add "sub menu" description.
 					subMenuTitle = ui.item.find( '.item-title .is-submenu' );
 					if ( 0 < currentDepth )
 						subMenuTitle.show();
 					else
 						subMenuTitle.hide();
 
-					// Update depth classes
+					// Update depth classes.
 					if ( 0 !== depthChange ) {
 						ui.item.updateDepthClass( currentDepth );
 						children.shiftDepthClass( depthChange );
 						updateMenuMaxDepth( depthChange );
 					}
-					// Register a change
+					// Register a change.
 					api.registerChange();
 					// Update the item data.
 					ui.item.updateParentMenuItemDBId();
 
-					// address sortable's incorrectly-calculated top in opera
+					// Address sortable's incorrectly-calculated top in Opera.
 					ui.item[0].style.top = 0;
 
-					// handle drop placement for rtl orientation
+					// Handle drop placement for rtl orientation.
 					if ( api.isRTL ) {
 						ui.item[0].style.left = 'auto';
 						ui.item[0].style.right = 0;
@@ -736,9 +736,11 @@
 						edge = api.isRTL ? offset.left + ui.helper.width() : offset.left,
 						depth = api.negateIfRTL * api.pxToDepth( edge - menuEdge );
 
-					// Check and correct if depth is not within range.
+					/*
-					// Also, if the dragged element is dragged upwards over
+					 * Check and correct if depth is not within range.
-					// an item, shift the placeholder to a child position.
+					 * Also, if the dragged element is dragged upwards over an item,
+					 * shift the placeholder to a child position.
+					 */
 					if ( depth > maxDepth || offset.top < ( prevBottom - api.options.targetTolerance ) ) {
 						depth = maxDepth;
 					} else if ( depth < minDepth ) {
@@ -748,7 +750,7 @@
 					if( depth != currentDepth )
 						updateCurrentDepth(ui, depth);
 
-					// If we overlap the next element, manually shift downwards
+					// If we overlap the next element, manually shift downwards.
 					if( nextThreshold && offset.top + helperHeight > nextThreshold ) {
 						next.after( ui.placeholder );
 						updateSharedVars( ui );
@@ -955,12 +957,12 @@
 				return false;
 			}
 
-			// Show the ajax spinner
+			// Show the Ajax spinner.
 			$( '.customlinkdiv .spinner' ).addClass( 'is-active' );
 			this.addLinkToMenu( url, label, processMethod, function() {
-				// Remove the ajax spinner
+				// Remove the Ajax spinner.
 				$( '.customlinkdiv .spinner' ).removeClass( 'is-active' );
-				// Set custom link form back to defaults
+				// Set custom link form back to defaults.
 				$('#custom-menu-item-name').val('').blur();
 				$( '#custom-menu-item-url' ).val( '' ).attr( 'placeholder', 'https://' );
 			});
@@ -997,10 +999,10 @@
 			$.post( ajaxurl, params, function(menuMarkup) {
 				var ins = $('#menu-instructions');
 
-				menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces
+				menuMarkup = $.trim( menuMarkup ); // Trim leading whitespaces.
 				processMethod(menuMarkup, params);
 
-				// Make it stand out a bit more visually, by adding a fadeIn
+				// Make it stand out a bit more visually, by adding a fadeIn.
 				$( 'li.pending' ).hide().fadeIn('slow');
 				$( '.drag-instructions' ).show();
 				if( ! ins.hasClass( 'menu-instructions-inactive' ) && ins.siblings().length )
@@ -1051,7 +1053,7 @@
 						return navMenuL10n.saveAlert;
 				};
 			} else {
-				// Make the post boxes read-only, as they can't be used yet
+				// Make the post boxes read-only, as they can't be used yet.
 				$( '#menu-settings-column' ).find( 'input,select' ).end().find( 'a' ).attr( 'href', '#' ).unbind( 'click' );
 			}
 		},
@@ -1071,7 +1073,7 @@
 
 					wrapper = target.parents('.accordion-section-content').first();
 
-					// upon changing tabs, we want to uncheck all checkboxes
+					// Upon changing tabs, we want to uncheck all checkboxes.
 					$( 'input', wrapper ).prop( 'checked', false );
 
 					$('.tabs-panel-active', wrapper).removeClass('tabs-panel-active').addClass('tabs-panel-inactive');
@@ -1080,7 +1082,7 @@
 					$('.tabs', wrapper).removeClass('tabs');
 					target.parent().addClass('tabs');
 
-					// select the search bar
+					// Select the search bar.
 					$('.quick-search', wrapper).focus();
 
 					// Hide controls in the search tab if no items found.
@@ -1193,17 +1195,17 @@
 			var locs = '',
 			menuName = $('#menu-name'),
 			menuNameVal = menuName.val();
-			// Cancel and warn if invalid menu name
+			// Cancel and warn if invalid menu name.
 			if ( ! menuNameVal || ! menuNameVal.replace( /\s+/, '' ) ) {
 				menuName.parent().addClass( 'form-invalid' );
 				return false;
 			}
-			// Copy menu theme locations
+			// Copy menu theme locations.
 			$('#nav-menu-theme-locations select').each(function() {
 				locs += '<input type="hidden" name="' + this.name + '" value="' + $(this).val() + '" />';
 			});
 			$('#update-nav-menu').append( locs );
-			// Update menu item position data
+			// Update menu item position data.
 			api.menuList.find('.menu-item-data-position').val( function(index) { return index + 1; } );
 			window.onbeforeunload = null;
 
@@ -1211,7 +1213,7 @@
 		},
 
 		eventOnClickMenuDelete : function() {
-			// Delete warning AYS
+			// Delete warning AYS.
 			if ( window.confirm( navMenuL10n.warnDeleteMenu ) ) {
 				window.onbeforeunload = null;
 				return true;
@@ -1253,7 +1255,7 @@
 			$items.each(function(){
 				$item = $(this);
 
-				// make a unique DB ID number
+				// Make a unique DB ID number.
 				matched = pattern.exec($item.html());
 
 				if ( matched && matched[1] ) {

wp-admin/js/plugin-install.js

@@ -183,11 +183,12 @@ jQuery( document ).ready( function( $ ) {
 		var tab = $( this ).attr( 'name' );
 		event.preventDefault();
 
-		// Flip the tab
+		// Flip the tab.
 		$( '#plugin-information-tabs a.current' ).removeClass( 'current' );
 		$( this ).addClass( 'current' );
 
-		// Only show the fyi box in the description section, on smaller screen, where it's otherwise always displayed at the top.
+		// Only show the fyi box in the description section, on smaller screen,
+		// where it's otherwise always displayed at the top.
 		if ( 'description' !== tab && $( window ).width() < 772 ) {
 			$( '#plugin-information-content' ).find( '.fyi' ).hide();
 		} else {

wp-admin/js/post.js

@@ -91,9 +91,9 @@ window.wp = window.wp || {};
 		/**
 		 * Load the next batch of comments.
 		 *
-		 * @param {int} total Total number of comments to load.
-		 *
 		 * @memberof commentsBox
+		 *
+		 * @param {int} total Total number of comments to load.
 		 */
 		load: function(total){
 			this.st = jQuery('#the-comment-list tr.comment:visible').length;
@@ -309,24 +309,24 @@ jQuery(document).ready( function($) {
 
 	// Post locks: contain focus inside the dialog. If the dialog is shown, focus the first item.
 	$('#post-lock-dialog .notification-dialog').on( 'keydown', function(e) {
-		// Don't do anything when [tab] is pressed.
+		// Don't do anything when [Tab] is pressed.
 		if ( e.which != 9 )
 			return;
 
 		var target = $(e.target);
 
-		// [shift] + [tab] on first tab cycles back to last tab.
+		// [Shift] + [Tab] on first tab cycles back to last tab.
 		if ( target.hasClass('wp-tab-first') && e.shiftKey ) {
 			$(this).find('.wp-tab-last').focus();
 			e.preventDefault();
-		// [tab] on last tab cycles back to first tab.
+		// [Tab] on last tab cycles back to first tab.
 		} else if ( target.hasClass('wp-tab-last') && ! e.shiftKey ) {
 			$(this).find('.wp-tab-first').focus();
 			e.preventDefault();
 		}
 	}).filter(':visible').find('.wp-tab-first').focus();
 
-	// Set the heartbeat interval to 15 sec. if post lock dialogs are enabled.
+	// Set the heartbeat interval to 15 seconds if post lock dialogs are enabled.
 	if ( wp.heartbeat && $('#post-lock-dialog').length ) {
 		wp.heartbeat.interval( 15 );
 	}
@@ -385,7 +385,7 @@ jQuery(document).ready( function($) {
 		});
 	});
 
-	// Submit the form saving a draft or an autosave, and show a preview in a new tab
+	// Submit the form saving a draft or an autosave, and show a preview in a new tab.
 	$('#post-preview').on( 'click.post-preview', function( event ) {
 		var $this = $(this),
 			$form = $('form#post'),
@@ -534,7 +534,7 @@ jQuery(document).ready( function($) {
 		});
 	});
 
-	// Multiple Taxonomies.
+	// Multiple taxonomies.
 	if ( $('#tagsdiv-post_tag').length ) {
 		window.tagBox && window.tagBox.init();
 	} else {
@@ -559,7 +559,7 @@ jQuery(document).ready( function($) {
 			settingName = 'cats';
 		}
 
-		// TODO: move to jQuery 1.3+, support for multiple hierarchical taxonomies, see wp-lists.js
+		// @todo Move to jQuery 1.3+, support for multiple hierarchical taxonomies, see wp-lists.js.
 		$('a', '#' + taxonomy + '-tabs').click( function( e ) {
 			e.preventDefault();
 			var t = $(this).attr('href');
@@ -581,7 +581,7 @@ jQuery(document).ready( function($) {
 			$( this ).val( '' ).removeClass( 'form-input-tip' );
 		});
 
-		// On [enter] submit the taxonomy.
+		// On [Enter] submit the taxonomy.
 		$('#new' + taxonomy).keypress( function(event){
 			if( 13 === event.keyCode ) {
 				event.preventDefault();
@@ -654,7 +654,7 @@ jQuery(document).ready( function($) {
 				$('#in-' + taxonomy + '-' + id + ', #in-popular-' + taxonomy + '-' + id).prop( 'checked', c );
 		});
 
-	}); // end cats
+	}); // End cats.
 
 	// Custom Fields postbox.
 	if ( $('#postcustom').length ) {
@@ -796,7 +796,8 @@ jQuery(document).ready( function($) {
 
 			// Update "Status:" to currently selected status.
 			$('#post-status-display').text(
-				wp.sanitize.stripTagsAndEncodeText( $('option:selected', postStatus).text() ) // Remove any potential tags from post status text.
+				// Remove any potential tags from post status text.
+				wp.sanitize.stripTagsAndEncodeText( $('option:selected', postStatus).text() )
 			);
 
 			// Show or hide the "Save Draft" button.
@@ -838,7 +839,7 @@ jQuery(document).ready( function($) {
 		});
 
 		// Set the selected visibility as current.
-		$postVisibilitySelect.find('.save-post-visibility').click( function( event ) { // crazyhorse - multiple ok cancels
+		$postVisibilitySelect.find('.save-post-visibility').click( function( event ) { // Crazyhorse - multiple OK cancels.
 			$postVisibilitySelect.slideUp('fast');
 			$('#visibility .edit-visibility').show().focus();
 			updateText();
@@ -886,7 +887,7 @@ jQuery(document).ready( function($) {
 		});
 
 		// Save the changed timestamp.
-		$timestampdiv.find('.save-timestamp').click( function( event ) { // crazyhorse - multiple ok cancels
+		$timestampdiv.find('.save-timestamp').click( function( event ) { // Crazyhorse - multiple OK cancels.
 			if ( updateText() ) {
 				$timestampdiv.slideUp('fast');
 				$timestampdiv.siblings('a.edit-timestamp').show().focus();
@@ -1023,12 +1024,12 @@ jQuery(document).ready( function($) {
 
 		$el.html( '<input type="text" id="new-post-slug" value="' + slug_value + '" autocomplete="off" />' ).children( 'input' ).keydown( function( e ) {
 			var key = e.which;
-			// On [enter], just save the new slug, don't save the post.
+			// On [Enter], just save the new slug, don't save the post.
 			if ( 13 === key ) {
 				e.preventDefault();
 				buttons.children( '.save' ).click();
 			}
-			// On [esc] cancel the editing.
+			// On [Esc] cancel the editing.
 			if ( 27 === key ) {
 				buttons.children( '.cancel' ).click();
 			}
@@ -1173,7 +1174,7 @@ jQuery(document).ready( function($) {
 			}
 		});
 
-		// When changing page template, change the editor body class
+		// When changing page template, change the editor body class.
 		$( '#page_template' ).on( 'change.set-editor-class', function() {
 			var editor, body, pageTemplate = $( this ).val() || '';
 
@@ -1191,9 +1192,9 @@ jQuery(document).ready( function($) {
 
 	}
 
-	// Save on pressing [ctrl]/[command] + [s] in the Text editor.
+	// Save on pressing [Ctrl]/[Command] + [S] in the Text editor.
 	$textarea.on( 'keydown.wp-autosave', function( event ) {
-		// Key [s] has code 83.
+		// Key [S] has code 83.
 		if ( event.which === 83 ) {
 			if ( event.shiftKey || event.altKey || ( isMac && ( ! event.metaKey || event.ctrlKey ) ) || ( ! isMac && ! event.ctrlKey ) ) {
 				return;