Index: wp-includes/general-template.php
===================================================================
--- wp-includes/general-template.php	(revision 27896)
+++ wp-includes/general-template.php	(working copy)
@@ -160,6 +160,13 @@
 	do_action( 'pre_get_search_form' );
 
 	$format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml';
+	/**
+	 * Filter the HTML format of the search form.
+	 *
+	 * @since 3.6.0
+	 *
+	 * @param string $format The type of markup - HTML5 or XHTML.
+	 */
 	$format = apply_filters( 'search_form_format', $format );
 
 	$search_form_template = locate_template( 'searchform.php' );
@@ -187,6 +194,13 @@
 		}
 	}
 
+	/**
+	 * Filter the HTML output of the search form.
+	 *
+	 * @since 2.7.0
+	 *
+	 * @param string $form The HTML code of the form.
+	 */
 	$result = apply_filters( 'get_search_form', $form );
 	if ( null === $result )
 		$result = $form;
@@ -244,6 +258,14 @@
 	$logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));
 	$logout_url = wp_nonce_url( $logout_url, 'log-out' );
 
+	/**
+	 * Filter the Log Out URL of the site.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param string $logout_url	The logout URL.
+	 * @param string $redirect	The path to redirect to on logout if supplied.
+	 */
 	return apply_filters('logout_url', $logout_url, $redirect);
 }
 
@@ -269,6 +291,14 @@
 	if ( $force_reauth )
 		$login_url = add_query_arg('reauth', '1', $login_url);
 
+	/**
+	 * Filter the login URL.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param string $login_url	The login URL.
+	 * @param string $redirect	The path to redirect to on login if supplied.
+	 */
 	return apply_filters('login_url', $login_url, $redirect);
 }
 
@@ -284,6 +314,13 @@
  * @return string
  */
 function wp_registration_url() {
+	/**
+	 * Filter the user registration URL.
+	 *
+	 * @since 3.6.0
+	 *
+	 * @param string The user registration URL returned by the site_url() function.
+	 */
 	return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) );
 }
 
@@ -312,6 +349,13 @@
 		'value_username' => '',
 		'value_remember' => false, // Set this to true to default the "Remember me" checkbox to checked
 	);
+	/**
+	 * Filter the default arguments of the wp_login_form() function.
+	 *
+	 * @since 3.0.0
+	 *
+	 * @param array $defaults The default arguments of the login form.
+	 */
 	$args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) );
 
 	$form = '
@@ -359,6 +403,14 @@
 	}
 
 	$lostpassword_url = add_query_arg( $args, network_site_url('wp-login.php', 'login') );
+	/**
+	 * Filter the lost password URL.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param string $lostpassword_url	The URL of the lost password page.
+	 * @param string $redirect		The path to redirect to on login.
+	 */
 	return apply_filters( 'lostpassword_url', $lostpassword_url, $redirect );
 }
 
@@ -387,6 +439,13 @@
 		$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
 	}
 
+	/**
+	 * Filter the HTML link to the registration or admin page.
+	 *
+	 * @since 1.5.2
+	 *
+	 * @param string $link The HTML code of the link to the registration or admin page
+	 */
 	if ( $echo )
 		echo apply_filters('register', $link);
 	else
@@ -654,6 +713,15 @@
 		$title = $prefix . implode( " $sep ", $title_array );
 	}
 
+	/**
+	 * Filter the string to be displayed between the <title> tags.
+	 *
+	 * @since 2.0.0
+	 *
+	 * @param string $title		The page title of the current blog area.
+	 * @param string $sep		The separator of the title.
+	 * @param string $seplocation	The location of the separator right or left.
+	 */
 	$title = apply_filters('wp_title', $title, $sep, $seplocation);
 
 	// Send it out
@@ -686,6 +754,14 @@
 	if ( !isset($_post->post_title) )
 		return;
 
+	/**
+	 * Filter the single post page title.
+	 *
+	 * @since 1.2.1
+	 *
+	 * @param string $_post->post_title 	The single post page title.
+	 * @param object $_post			The current queried object as returned by get_queried_object().
+	 */
 	$title = apply_filters('single_post_title', $_post->post_title, $_post);
 	if ( $display )
 		echo $prefix . $title;