+ return $return;
+
+}
+
+/**
+ * Display post pages link navigation for previous and next pages.
+ *
+ * @since 0.71
+ *
+ * @param string $sep Optional. Separator for posts navigation links.
+ * @param string $prelabel Optional. Label for previous pages.
+ * @param string $nxtlabel Optional Label for next pages.
+ */
+function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) {
+ $args = array_filter( compact('sep', 'prelabel', 'nxtlabel') );
+ echo get_posts_nav_link($args);
+}
+
+/**
+ * Retrieve page numbers links.
+ *
+ * @since 2.7.0
+ *
+ * @param int $pagenum Optional. Page number.
+ * @return string
+ */
+function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
+ global $post, $wp_rewrite;
+
+ $pagenum = (int) $pagenum;
+
+ $result = get_permalink( $post->ID );
+
+ if ( 'newest' == get_option('default_comments_page') ) {
+ if ( $pagenum != $max_page ) {
+ if ( $wp_rewrite->using_permalinks() )
+ $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
+ else
+ $result = add_query_arg( 'cpage', $pagenum, $result );
+ }
+ } elseif ( $pagenum > 1 ) {
+ if ( $wp_rewrite->using_permalinks() )
+ $result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
+ else
+ $result = add_query_arg( 'cpage', $pagenum, $result );
+ }
+
+ $result .= '#comments';
+
+ $result = apply_filters('get_comments_pagenum_link', $result);
+
+ return $result;
+}
+
+/**
+ * Return the link to next comments pages.
+ *
+ * @since 2.7.1
+ *
+ * @param string $label Optional. Label for link text.
+ * @param int $max_page Optional. Max page.
+ * @return string|null
+ */
+function get_next_comments_link( $label = '', $max_page = 0 ) {
+ global $wp_query;
+
+ if ( !is_singular() || !get_option('page_comments') )
+ return;
+
+ $page = get_query_var('cpage');
+
+ $nextpage = intval($page) + 1;
+
+ if ( empty($max_page) )
+ $max_page = $wp_query->max_num_comment_pages;
+
+ if ( empty($max_page) )
+ $max_page = get_comment_pages_count();
+
+ if ( $nextpage > $max_page )
+ return;
+
+ if ( empty($label) )
+ $label = __('Newer Comments »');
+
+ return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+}
+
+/**
+ * Display the link to next comments pages.
+ *
+ * @since 2.7.0
+ *
+ * @param string $label Optional. Label for link text.
+ * @param int $max_page Optional. Max page.
+ */
+function next_comments_link( $label = '', $max_page = 0 ) {
+ echo get_next_comments_link( $label, $max_page );
+}
+
+/**
+ * Return the previous comments page link.
+ *
+ * @since 2.7.1
+ *
+ * @param string $label Optional. Label for comments link text.
+ * @return string|null
+ */
+function get_previous_comments_link( $label = '' ) {
+ if ( !is_singular() || !get_option('page_comments') )
+ return;
+
+ $page = get_query_var('cpage');
+
+ if ( intval($page) <= 1 )
+ return;
+
+ $prevpage = intval($page) - 1;
+
+ if ( empty($label) )
+ $label = __('« Older Comments');
+
+ return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+}
+
+/**
+ * Display the previous comments page link.
+ *
+ * @since 2.7.0
+ *
+ * @param string $label Optional. Label for comments link text.
+ */
+function previous_comments_link( $label = '' ) {
+ echo get_previous_comments_link( $label );
+}
+
+/**
+ * Create pagination links for the comments on the current post.
+ *
+ * @see paginate_links()
+ * @since 2.7.0
+ *
+ * @param string|array $args Optional args. See paginate_links.
+ * @return string Markup for pagination links.
+*/
+function paginate_comments_links($args = array()) {
+ global $wp_query, $wp_rewrite;
+
+ if ( !is_singular() || !get_option('page_comments') )
+ return;
+
+ $page = get_query_var('cpage');
+ if ( !$page )
+ $page = 1;
+ $max_page = get_comment_pages_count();
+ $defaults = array(
+ 'base' => add_query_arg( 'cpage', '%#%' ),
+ 'format' => '',
+ 'total' => $max_page,
+ 'current' => $page,
+ 'echo' => true,
+ 'add_fragment' => '#comments'
+ );
+ if ( $wp_rewrite->using_permalinks() )
+ $defaults['base'] = user_trailingslashit(trailingslashit(get_permalink()) . 'comment-page-%#%', 'commentpaged');
+
+ $args = wp_parse_args( $args, $defaults );
+ $page_links = paginate_links( $args );
+
+ if ( $args['echo'] )
+ echo $page_links;
+ else
+ return $page_links;
+}
+
+/**
+ * Retrieve shortcut link.
+ *
+ * Use this in 'a' element 'href' attribute.
+ *
+ * @since 2.6.0
+ *
+ * @return string
+ */
+function get_shortcut_link() {
+ $link = "javascript:
+ var d=document,
+ w=window,
+ e=w.getSelection,
+ k=d.getSelection,
+ x=d.selection,
+ s=(e?e():(k)?k():(x?x.createRange().text:0)),
+ f='" . admin_url('press-this.php') . "',
+ l=d.location,
+ e=encodeURIComponent,
+ u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4';
+ a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;};
+ if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a();
+ void(0)";
+
+ $link = str_replace(array("\r", "\n", "\t"), '', $link);
+
+ return apply_filters('shortcut_link', $link);
+}
+
+/**
+ * Retrieve the site url.
+ *
+ * Returns the 'site_url' option with the appropriate protocol, 'https' if
+ * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
+ * overridden.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the site url.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @return string Site url link with optional path appended.
+*/
+function site_url($path = '', $scheme = null) {
+ // should the list of allowed schemes be maintained elsewhere?
+ $orig_scheme = $scheme;
+ if ( !in_array($scheme, array('http', 'https')) ) {
+ if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('login' == $scheme) && ( force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('admin' == $scheme) && force_ssl_admin() )
+ $scheme = 'https';
+ else
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+ }
+
+ $url = str_replace( 'http://', "{$scheme}://", get_option('siteurl') );
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('site_url', $url, $path, $orig_scheme);
+}
+
+/**
+ * Retrieve the url to the admin area.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional path relative to the admin url
+ * @return string Admin url link with optional path appended
+*/
+function admin_url($path = '') {
+ $url = site_url('wp-admin/', 'admin');
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('admin_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the includes directory.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the includes url.
+ * @return string Includes url link with optional path appended.
+*/
+function includes_url($path = '') {
+ $url = site_url() . '/' . WPINC . '/';
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('includes_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the content directory.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the content url.
+ * @return string Content url link with optional path appended.
+*/
+function content_url($path = '') {
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+ $url = WP_CONTENT_URL;
+ if ( 0 === strpos($url, 'http') ) {
+ if ( is_ssl() )
+ $url = str_replace( 'http://', "{$scheme}://", $url );
+ }
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('content_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the plugins directory or to a specific file within that directory.
+ * You can hardcode the plugin slug in $path or pass __FILE__ as a second argument to get the correct folder name.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the plugins url.
+ * @param string $plugin Optional. The plugin file that you want to be relative to - i.e. pass in __FILE__
+ * @return string Plugins url link with optional path appended.
+*/
+function plugins_url($path = '', $plugin = '') {
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+
+ if ( $plugin !== '' && preg_match('#^' . preg_quote(WPMU_PLUGIN_DIR . DIRECTORY_SEPARATOR, '#') . '#', $plugin) ) {
+ $url = WPMU_PLUGIN_URL;
+ } else {
+ $url = WP_PLUGIN_URL;
+ }
+
+ if ( 0 === strpos($url, 'http') ) {
+ if ( is_ssl() )
+ $url = str_replace( 'http://', "{$scheme}://", $url );
+ }
+
+ if ( !empty($plugin) && is_string($plugin) ) {
+ $folder = dirname(plugin_basename($plugin));
+ if ('.' != $folder)
+ $url .= '/' . ltrim($folder, '/');
+ }
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('plugins_url', $url, $path, $plugin);
+}
+
+/**
+ * Output rel=canonical for singular queries
+ *
+ * @package WordPress
+ * @since 2.9.0
+*/
+function rel_canonical() {
+ if ( !is_singular() )
+ return;
+
+ global $wp_the_query;
+ if ( !$id = $wp_the_query->get_queried_object_id() )
+ return;
+
+ $link = get_permalink( $id );
+ echo "<link rel='canonical' href='$link' />\n";