<?php
/**
* Breadcrumb for Customizr
*
* 
* @package      Customizr
* @subpackage   classes
* @since        3.0
* @uses 		Breadcrumb Trail - A breadcrumb menu script for WordPress.
* @author    	Justin Tadlock <justin@justintadlock.com>
* @author       Nicolas GUILLAUME <nicolas@themesandco.com>
* @copyright    Copyright (c) 2013, Nicolas GUILLAUME
* @link         http://themesandco.com/customizr
* @license      http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*/

class TC_breadcrumb {

    //Access any method or var of the class with classname::$instance -> var or method():
    static $instance;

    function __construct () {
        self::$instance =& $this;
        add_action( '__before_main_container'			, array( $this , 'tc_breadcrumb_display' ), 20 );
    }

    
	/**
    * 
    * @package Customizr
    * @since Customizr 1.0 
    */
    function tc_breadcrumb_display() {
	  	if(  !apply_filters( 'tc_show_breadcrumb' , 1 == tc__f( '__get_option' , 'tc_breadcrumb') && !tc__f('__is_home') ) )
	      return;

	  	$args = array(
		  'container'  => 'div' , // div, nav, p, etc.
		  'separator'  => '&raquo;' ,
		  'before'     => false,
		  'after'      => false,
		  'front_page' => true,
		  'show_home'  => __( 'Home' , 'customizr' ),
		  'network'    => false,
		  'echo'       => true
	  	);

	  	echo apply_filters( 
	  			'tc_breadcrumb_display' , 
				sprintf('<div class="tc-hot-crumble container" role="navigation"><div class="row"><div class="%1$s">%2$s</div></div></div>',
					apply_filters( 'tc_breadcrumb_class', 'span12' ),
					$this -> tc_breadcrumb_trail( $args)
				)
	  	);
    }



     /**
	 * Breadcrumb Trail - A breadcrumb menu script for WordPress.
	 *
	 * Breadcrumb Trail is a script for showing a breadcrumb trail for any type of page.  It tries to 
	 * anticipate any type of structure and display the best possible trail that matches your site's 
	 * permalink structure.  While not perfect, it attempts to fill in the gaps left by many other 
	 * breadcrumb scripts.
	 *
	 *
	 * @package   BreadcrumbTrail
	 * @version   0.5.3
	 * @author    Justin Tadlock <justin@justintadlock.com>
	 * @copyright Copyright (c) 2008 - 2012, Justin Tadlock
	 * @link      http://themehybrid.com/plugins/breadcrumb-trail
	 * @license   http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
	 */




	/**
	 * Shows a breadcrumb for all types of pages.  This function is formatting the final output of the 
	 * breadcrumb trail.  The breadcrumb_trail_get_items() function returns the items and this function 
	 * formats those items.
	 *
	 * @since 0.1.0
	 * @access public
	 * @param array $args Mixed arguments for the menu.
	 * @return string Output of the breadcrumb menu.
	 */

	function tc_breadcrumb_trail( $args = array() ) {

		/* Create an empty variable for the breadcrumb. */
		$breadcrumb = '';

		/* Set up the default arguments for the breadcrumb. */
		$defaults = array(
			'container'  => 'div' , // div, nav, p, etc.
			'separator'  => '/' ,
			'before'     => __( 'Browse:' , 'customizr' ),
			'after'      => false,
			'front_page' => true,
			'show_home'  => __( 'Home' , 'customizr' ),
			'network'    => false,
			'echo'       => true
		);

		/* Allow singular post views to have a taxonomy's terms prefixing the trail. */
		if ( is_singular() ) {
			$post = get_queried_object();
			$defaults["singular_{$post->post_type}_taxonomy"] = false;
		}

		/* Apply filters to the arguments. */
		$args = apply_filters( 'breadcrumb_trail_args' , $args );

		/* Parse the arguments and extract them for easy variable naming. */
		$args = wp_parse_args( $args, $defaults );

		/* Get the trail items. */
		$trail = $this -> tc_breadcrumb_trail_get_items( $args );

		/* Connect the breadcrumb trail if there are items in the trail. */
		if ( !empty( $trail ) && is_array( $trail ) ) {

			/* Open the breadcrumb trail containers. */
			$breadcrumb = '<' . tag_escape( $args['container'] ) . ' class="breadcrumb-trail breadcrumbs" itemprop="breadcrumb">';

			/* If $before was set, wrap it in a container. */
			$breadcrumb .= ( !empty( $args['before'] ) ? '<span class="trail-before">' . $args['before'] . '</span> ' : '' );

			/* Adds the 'trail-begin' class around first item if there's more than one item. */
			if ( 1 < count( $trail ) )
				array_unshift( $trail, '<span class="trail-begin">' . array_shift( $trail ) . '</span>' );

			/* Adds the 'trail-end' class around last item. */
			array_push( $trail, '<span class="trail-end">' . array_pop( $trail ) . '</span>' );

			/* Format the separator. */
			$separator = ( !empty( $args['separator'] ) ? '<span class="sep">' . $args['separator'] . '</span>' : '<span class="sep">/</span>' );

			/* Join the individual trail items into a single string. */
			$breadcrumb .= join( " {$separator} ", $trail );

			/* If $after was set, wrap it in a container. */
			$breadcrumb .= ( !empty( $args['after'] ) ? ' <span class="trail-after">' . $args['after'] . '</span>' : '' );

			/* Close the breadcrumb trail containers. */
			$breadcrumb .= '</' . tag_escape( $args['container'] ) . '>';
		}

		/* Allow developers to filter the breadcrumb trail HTML. */
		//$breadcrumb = apply_filters( array( $this , 'breadcrumb_trail' ), $breadcrumb, $args );

		/* Output the breadcrumb. */
		if ( $args['echo'] )
			echo $breadcrumb;
		else
			return $breadcrumb;
	}

	/**
	 * Gets the items for the breadcrumb trail.  This is the heart of the script.  It checks the current page 
	 * being viewed and decided based on the information provided by WordPress what items should be
	 * added to the breadcrumb trail.
	 *
	 * @since 0.4.0
	 * @todo Build in caching based on the queried object ID.
	 * @access public
	 * @param array $args Mixed arguments for the menu.
	 * @return array List of items to be shown in the trail.
	 */
	function tc_breadcrumb_trail_get_items( $args = array() ) {
		global $wp_rewrite;

		/* Set up an empty trail array and empty path. */
		$trail = array();
		$path = '';

		/* tc addon */
		$page_for_posts 				= ( 'posts' != get_option('show_on_front') ) ? get_option('page_for_posts') : false;

		/* If $show_home is set and we're not on the front page of the site, link to the home page. */
		if ( !is_front_page() && $args['show_home'] ) {

			if ( is_multisite() && true === $args['network'] ) {
				$trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
				$trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . get_bloginfo( 'name' ) . '</a>';
			} else {
				$trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . $args['show_home'] . '</a>';
			}
		}

		/* If bbPress is installed and we're on a bbPress page. */
		if ( function_exists( 'is_bbpress' ) && is_bbpress() ) {
			$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_bbpress_items() );
		}

		/* If viewing the front page of the site. */
		elseif ( is_front_page() ) {

			if ( !is_paged() && $args['show_home'] && $args['front_page'] ) {

				if ( is_multisite() && true === $args['network'] ) {
					$trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
					$trail[] = get_bloginfo( 'name' );
				} else {
					$trail[] = $args['show_home'];
				}
			}

			elseif ( is_paged() && $args['show_home'] && $args['front_page'] ) {

				if ( is_multisite() && true === $args['network'] ) {
					$trail[] = '<a href="' . network_home_url() . '">' . $args['show_home'] . '</a>';
					$trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . get_bloginfo( 'name' ) . '</a>';
				} else {
					$trail[] = '<a href="' . esc_url(home_url()) . '" title="' . esc_attr( get_bloginfo( 'name' ) ) . '" rel="home" class="trail-begin">' . $args['show_home'] . '</a>';
				}
			}
		}

		/* If viewing the "home"/posts page. */
		elseif ( is_home() ) {
			$home_page = get_page( get_queried_object_id() );

			$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $home_page->post_parent, '' ) );

			if ( is_paged() )
				$trail[]  = '<a href="' . get_permalink( $home_page->ID ) . '" title="' . esc_attr( get_the_title( $home_page->ID ) ) . '">' . get_the_title( $home_page->ID ) . '</a>';
			else
				$trail[] = get_the_title( $home_page->ID );
		}

		/* If viewing a singular post (page, attachment, etc.). */
		elseif ( is_singular() ) {

			/* Get singular post variables needed. */
			$post = get_queried_object();
			$post_id = absint( get_queried_object_id() );
			$post_type = $post->post_type;
			$parent = absint( $post->post_parent );

			/* Get the post type object. */
			$post_type_object = get_post_type_object( $post_type );

			/* If viewing a singular 'post'. */
			if ( 'post' == $post_type ) {

				/* If $front has been set, add it to the $path. */
				$path .= trailingslashit( $wp_rewrite->front );

				/* If there's a path, check for parents. */
				if ( !empty( $path ) && !$page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );
				else if ( $page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

				/* Map the permalink structure tags to actual links. */
				$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_map_rewrite_tags( $post_id, get_option( 'permalink_structure' ), $args ) );
			}

			/* If viewing a singular 'attachment'. */
			elseif ( 'attachment' == $post_type ) {

				/* Get the parent post ID. */
				$parent_id = $post->post_parent;

				/* If the attachment has a parent (attached to a post). */
				if ( 0 < $parent_id ) {

					/* Get the parent post type. */
					$parent_post_type = get_post_type( $parent_id );

					/* If the post type is 'post'. */
					if ( 'post' == $parent_post_type ) {

						/* If $front has been set, add it to the $path. */
						$path .= trailingslashit( $wp_rewrite->front );

						/* If there's a path, check for parents. */
						if ( !empty( $path ) )
							$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );

						/* Map the post (parent) permalink structure tags to actual links. */
						$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_map_rewrite_tags( $post->post_parent, get_option( 'permalink_structure' ), $args ) );
					}

					/* Custom post types. */
					elseif ( 'page' !== $parent_post_type ) {

						$parent_post_type_object = get_post_type_object( $parent_post_type );

						/* If $front has been set, add it to the $path. */
						if ( $parent_post_type_object->rewrite['with_front'] && $wp_rewrite->front )
							$path .= trailingslashit( $wp_rewrite->front );

						/* If there's a slug, add it to the $path. */
						if ( !empty( $parent_post_type_object->rewrite['slug'] ) )
							$path .= $parent_post_type_object->rewrite['slug'];

						/* If there's a path, check for parents. */
						if ( !empty( $path ) )
							$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );

						/* If there's an archive page, add it to the trail. */
						if ( !empty( $parent_post_type_object->has_archive ) ) {

							/* Add support for a non-standard label of 'archive_title' (special use case). */
							$label = !empty( $parent_post_type_object->labels->archive_title ) ? $parent_post_type_object->labels->archive_title : $parent_post_type_object->labels->name;

							$trail[] = '<a href="' . get_post_type_archive_link( $parent_post_type ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';
						}
					}
				}
			}

			/* If a custom post type, check if there are any pages in its hierarchy based on the slug. */
			elseif ( 'page' !== $post_type ) {

				/* If $front has been set, add it to the $path. */
				if ( isset( $post_type_object) && isset($post_type_object->rewrite['with_front']) && $post_type_object->rewrite['with_front'] && $wp_rewrite->front )
					$path .= trailingslashit( $wp_rewrite->front );

				/* If there's a slug, add it to the $path. */
				if ( !empty( $post_type_object->rewrite['slug'] ) )
					$path .= $post_type_object->rewrite['slug'];

				/* If there's a path, check for parents. */
				if ( !empty( $path ) )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );

				/* If there's an archive page, add it to the trail. */
				if ( !empty( $post_type_object->has_archive ) ) {

					/* Add support for a non-standard label of 'archive_title' (special use case). */
					$label = !empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;

					$trail[] = '<a href="' . get_post_type_archive_link( $post_type ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';
				}
			}

			/* If the post type path returns nothing and there is a parent, get its parents. */
			if ( ( empty( $path ) && 0 !== $parent ) || ( 'attachment' == $post_type ) )
				$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $parent, '' ) );

			/* Or, if the post type is hierarchical and there's a parent, get its parents. */
			elseif ( 0 !== $parent && is_post_type_hierarchical( $post_type ) )
				$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $parent, '' ) );

			/* Display terms for specific post type taxonomy if requested. */
			if ( !empty( $args["singular_{$post_type}_taxonomy"] ) && $terms = get_the_term_list( $post_id, $args["singular_{$post_type}_taxonomy"], '' , ' , ' , '' ) )
				$trail[] = $terms;

			/* End with the post title. */
			$post_title = single_post_title( '' , false );

			if ( 1 < get_query_var( 'page' ) && !empty( $post_title ) )
				$trail[] = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( $post_title ) . '">' . $post_title . '</a>';

			elseif ( !empty( $post_title ) )
				$trail[] = $post_title;
		}

		/* If we're viewing any type of archive. */
		elseif ( is_archive() ) {

			/* If viewing a taxonomy term archive. */
			if ( is_tax() || is_category() || is_tag() ) {

				/* Get some taxonomy and term variables. */
				$term = get_queried_object();
				$taxonomy = get_taxonomy( $term->taxonomy );

				/* Get the path to the term archive. Use this to determine if a page is present with it. */
				if ( is_category() )
					$path = get_option( 'category_base' );
				elseif ( is_tag() )
					$path = get_option( 'tag_base' );
				else {
					if ( $taxonomy->rewrite['with_front'] && $wp_rewrite->front )
						$path = trailingslashit( $wp_rewrite->front );
					$path .= $taxonomy->rewrite['slug'];
				}

				/* Get parent pages by path if they exist. */
				if ( $path && ! $page_for_posts)
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );
				else if ( $page_for_posts && ( is_category() || is_tag() ) )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

				/* Add post type archive if its 'has_archive' matches the taxonomy rewrite 'slug'. */
				if ( $taxonomy->rewrite['slug'] ) {

					/* Get public post types that match the rewrite slug. */
					$post_types = get_post_types( array( 'public' => true, 'has_archive' => $taxonomy->rewrite['slug'] ), 'objects' );

					/**
					 * If any post types are found, loop through them to find one that matches.
					 * The reason for this is because WP doesn't match the 'has_archive' string 
					 * exactly when calling get_post_types(). I'm assuming it just matches 'true'.
					 */
					if ( !empty( $post_types ) ) {

						foreach ( $post_types as $post_type_object ) {

							if ( $taxonomy->rewrite['slug'] === $post_type_object->has_archive ) {

								/* Add support for a non-standard label of 'archive_title' (special use case). */
								$label = !empty( $post_type_object->labels->archive_title ) ? $post_type_object->labels->archive_title : $post_type_object->labels->name;

								/* Add the post type archive link to the trail. */
								$trail[] = '<a href="' . get_post_type_archive_link( $post_type_object->name ) . '" title="' . esc_attr( $label ) . '">' . $label . '</a>';

								/* Break out of the loop. */
								break;
							}
						}
					}
				}

				/* If the taxonomy is hierarchical, list its parent terms. */
				if ( is_taxonomy_hierarchical( $term->taxonomy ) && $term->parent )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_term_parents( $term->parent, $term->taxonomy ) );

				/* Add the term name to the trail end. */
				if ( is_paged() )
					$trail[] = '<a href="' . esc_url( get_term_link( $term, $term->taxonomy ) ) . '" title="' . esc_attr( single_term_title( '' , false ) ) . '">' . single_term_title( '' , false ) . '</a>';
				else
					$trail[] = single_term_title( '' , false );
			}

			/* If viewing a post type archive. */
			elseif ( is_post_type_archive() ) {

				/* Get the post type object. */
				$post_type_object = get_post_type_object( get_query_var( 'post_type' ) );

				/* If $front has been set, add it to the $path. */
				if ( isset($post_type_object->rewrite['with_front']) && $post_type_object->rewrite['with_front'] && $wp_rewrite->front )
					$path .= trailingslashit( $wp_rewrite->front );

				/* If there's a slug, add it to the $path. */
				if ( !empty( $post_type_object->rewrite['slug'] ) )
					$path .= $post_type_object->rewrite['slug'];

				/* If there's a path, check for parents. */
				if ( !empty( $path ) )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );

				/* Add the post type [plural] name to the trail end. */
				if ( is_paged() )
					$trail[] = '<a href="' . esc_url( get_post_type_archive_link( $post_type_object->name ) ) . '" title="' . esc_attr( post_type_archive_title( '' , false ) ) . '">' . post_type_archive_title( '' , false ) . '</a>';
				else
					$trail[] = post_type_archive_title( '' , false );
			}

			/* If viewing an author archive. */
			elseif ( is_author() ) {

				/* Get the user ID. */
				$user_id = get_query_var( 'author' );

				/* If $front has been set, add it to $path. */
				if ( !empty( $wp_rewrite->front ) )
					$path .= trailingslashit( $wp_rewrite->front );

				/* If an $author_base exists, add it to $path. */
				if ( !empty( $wp_rewrite->author_base ) )
					$path .= $wp_rewrite->author_base;

				/* If there's a path, check for parents. */
				if ( !empty( $path ) && !$page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );
				else if ( $page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

				/* Add the author's display name to the trail end. */
				if ( is_paged() )
					$trail[] = '<a href="'. esc_url( get_author_posts_url( $user_id ) ) . '" title="' . esc_attr( get_the_author_meta( 'display_name' , $user_id ) ) . '">' . get_the_author_meta( 'display_name' , $user_id ) . '</a>';
				else
					$trail[] = get_the_author_meta( 'display_name' , $user_id );
			}

			/* If viewing a time-based archive. */
			elseif ( is_time() ) {

				/* If there's a path, check for parents. */
				if ( !empty( $path ) && !$page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );
				else if ( $page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

				if ( get_query_var( 'minute' ) && get_query_var( 'hour' ) )
					$trail[] = get_the_time( __( 'g:i a' , 'customizr' ) );

				elseif ( get_query_var( 'minute' ) )
					$trail[] = sprintf( __( 'Minute %1$s' , 'customizr' ), get_the_time( __( 'i' , 'customizr' ) ) );

				elseif ( get_query_var( 'hour' ) )
					$trail[] = get_the_time( __( 'g a' , 'customizr' ) );
			}

			/* If viewing a date-based archive. */
			elseif ( is_date() ) {
				/* If there's a path, check for parents. */
				if ( !empty( $path ) && !$page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $path ) );
				else if ( $page_for_posts )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $page_for_posts , $path ) );

				/* If $front has been set, check for parent pages. */
				if ( $wp_rewrite->front )
					$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( '' , $wp_rewrite->front ) );

				if ( is_day() ) {
					$trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';
					$trail[] = '<a href="' . get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) . '" title="' . get_the_time( esc_attr__( 'F' , 'customizr' ) ) . '">' . get_the_time( __( 'F' , 'customizr' ) ) . '</a>';

					if ( is_paged() )
						$trail[] = '<a href="' . get_day_link( get_the_time( 'Y' ), get_the_time( 'm' ), get_the_time( 'd' ) ) . '" title="' . get_the_time( esc_attr__( 'd' , 'customizr' ) ) . '">' . get_the_time( __( 'd' , 'customizr' ) ) . '</a>';
					else
						$trail[] = get_the_time( __( 'd' , 'customizr' ) );
				}

				elseif ( get_query_var( 'w' ) ) {
					$trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';

					if ( is_paged() )
						$trail[] = get_archives_link( add_query_arg( array( 'm' => get_the_time( 'Y' ), 'w' => get_the_time( 'W' ) ), esc_url(home_url()) ), sprintf( __( 'Week %1$s' , 'customizr' ), get_the_time( esc_attr__( 'W' , 'customizr' ) ) ), false );
					else
						$trail[] = sprintf( __( 'Week %1$s' , 'customizr' ), get_the_time( esc_attr__( 'W' , 'customizr' ) ) );
				}

				elseif ( is_month() ) {
					$trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';

					if ( is_paged() )
						$trail[] = '<a href="' . get_month_link( get_the_time( 'Y' ), get_the_time( 'm' ) ) . '" title="' . get_the_time( esc_attr__( 'F' , 'customizr' ) ) . '">' . get_the_time( __( 'F' , 'customizr' ) ) . '</a>';
					else
						$trail[] = get_the_time( __( 'F' , 'customizr' ) );
				}

				elseif ( is_year() ) {

					if ( is_paged() )
						$trail[] = '<a href="' . get_year_link( get_the_time( 'Y' ) ) . '" title="' . esc_attr( get_the_time( __( 'Y' , 'customizr' ) ) ) . '">' . get_the_time( __( 'Y' , 'customizr' ) ) . '</a>';
					else
						$trail[] = get_the_time( __( 'Y' , 'customizr' ) );
				}
			}
		}

		/* If viewing search results. */
		elseif ( is_search() ) {

			if ( is_paged() )
				$trail[] = '<a href="' . get_search_link() . '" title="' . sprintf( esc_attr__( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) ) . '">' . sprintf( __( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) ) . '</a>';
			else
				$trail[] = sprintf( __( 'Search results for &quot;%1$s&quot;' , 'customizr' ), esc_attr( get_search_query() ) );
		}

		/* If viewing a 404 error page. */
		elseif ( is_404() ) {
			$trail[] = __( '404 Not Found' , 'customizr' );
		}

		/* Check for pagination. */
		if ( is_paged() )
			$trail[] = sprintf( __( 'Page %d' , 'customizr' ), absint( get_query_var( 'paged' ) ) );
		elseif ( is_singular() && 1 < get_query_var( 'page' ) )
			$trail[] = sprintf( __( 'Page %d' , 'customizr' ), absint( get_query_var( 'page' ) ) );

		/* Allow devs to step in and filter the $trail array. */
		return apply_filters( 'breadcrumb_trail_items' , $trail, $args );
	}

	/**
	 * Gets the items for the breadcrumb trail if bbPress is installed.
	 *
	 * @since 0.5.0
	 * @access public
	 * @param array $args Mixed arguments for the menu.
	 * @return array List of items to be shown in the trail.
	 */
	function tc_breadcrumb_trail_get_bbpress_items( $args = array() ) {

		/* Set up a new trail items array. */
		$trail = array();

		/* Get the forum post type object. */
		$post_type_object = get_post_type_object( bbp_get_forum_post_type() );

		/* If not viewing the forum root/archive page and a forum archive exists, add it. */
		if ( !empty( $post_type_object->has_archive ) && !bbp_is_forum_archive() )
			$trail[] = '<a href="' . get_post_type_archive_link( bbp_get_forum_post_type() ) . '">' . bbp_get_forum_archive_title() . '</a>';

		/* If viewing the forum root/archive. */
		if ( bbp_is_forum_archive() ) {
			$trail[] = bbp_get_forum_archive_title();
		}

		/* If viewing the topics archive. */
		elseif ( bbp_is_topic_archive() ) {
			$trail[] = bbp_get_topic_archive_title();
		}

		/* If viewing a topic tag archive. */
		elseif ( bbp_is_topic_tag() ) {
			$trail[] = bbp_get_topic_tag_name();
		}

		/* If viewing a topic tag edit page. */
		elseif ( bbp_is_topic_tag_edit() ) {
			$trail[] = '<a href="' . bbp_get_topic_tag_link() . '">' . bbp_get_topic_tag_name() . '</a>';
			$trail[] = __( 'Edit' , 'customizr' );
		}

		/* If viewing a "view" page. */
		elseif ( bbp_is_single_view() ) {
			$trail[] = bbp_get_view_title();
		}

		/* If viewing a single topic page. */
		elseif ( bbp_is_single_topic() ) {

			/* Get the queried topic. */
			$topic_id = get_queried_object_id();

			/* Get the parent items for the topic, which would be its forum (and possibly forum grandparents). */
			$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( bbp_get_topic_forum_id( $topic_id ) ) );

			/* If viewing a split, merge, or edit topic page, show the link back to the topic.  Else, display topic title. */
			if ( bbp_is_topic_split() || bbp_is_topic_merge() || bbp_is_topic_edit() )
				$trail[] = '<a href="' . bbp_get_topic_permalink( $topic_id ) . '">' . bbp_get_topic_title( $topic_id ) . '</a>';
			else
				$trail[] = bbp_get_topic_title( $topic_id );

			/* If viewing a topic split page. */
			if ( bbp_is_topic_split() )
				$trail[] = __( 'Split' , 'customizr' );

			/* If viewing a topic merge page. */
			elseif ( bbp_is_topic_merge() )
				$trail[] = __( 'Merge' , 'customizr' );

			/* If viewing a topic edit page. */
			elseif ( bbp_is_topic_edit() )
				$trail[] = __( 'Edit' , 'customizr' );
		}

		/* If viewing a single reply page. */
		elseif ( bbp_is_single_reply() ) {

			/* Get the queried reply object ID. */
			$reply_id = get_queried_object_id();

			/* Get the parent items for the reply, which should be its topic. */
			$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( bbp_get_reply_topic_id( $reply_id ) ) );

			/* If viewing a reply edit page, link back to the reply. Else, display the reply title. */
			if ( bbp_is_reply_edit() ) {
				$trail[] = '<a href="' . bbp_get_reply_url( $reply_id ) . '">' . bbp_get_reply_title( $reply_id ) . '</a>';
				$trail[] = __( 'Edit' , 'customizr' );

			} else {
				$trail[] = bbp_get_reply_title( $reply_id );
			}

		}

		/* If viewing a single forum. */
		elseif ( bbp_is_single_forum() ) {

			/* Get the queried forum ID and its parent forum ID. */
			$forum_id = get_queried_object_id();
			$forum_parent_id = bbp_get_forum_parent_id( $forum_id );

			/* If the forum has a parent forum, get its parent(s). */
			if ( 0 !== $forum_parent_id)
				$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_parents( $forum_parent_id ) );

			/* Add the forum title to the end of the trail. */
			$trail[] = bbp_get_forum_title( $forum_id );
		}

		/* If viewing a user page or user edit page. */
		elseif ( bbp_is_single_user() || bbp_is_single_user_edit() ) {

			if ( bbp_is_single_user_edit() ) {
				$trail[] = '<a href="' . bbp_get_user_profile_url() . '">' . bbp_get_displayed_user_field( 'display_name' ) . '</a>';
				$trail[] = __( 'Edit' , 'customizr' );
			} else {
				$trail[] = bbp_get_displayed_user_field( 'display_name' );
			}
		}

		/* Return the bbPress breadcrumb trail items. */
		return apply_filters( 'breadcrumb_trail_get_bbpress_items' , $trail, $args );
	}

	/**
	 * Turns %tag% from permalink structures into usable links for the breadcrumb trail.  This feels kind of
	 * hackish for now because we're checking for specific %tag% examples and only doing it for the 'post' 
	 * post type.  In the future, maybe it'll handle a wider variety of possibilities, especially for custom post
	 * types.
	 *
	 * @since 0.4.0
	 * @access public
	 * @param int $post_id ID of the post whose parents we want.
	 * @param string $path Path of a potential parent page.
	 * @param array $args Mixed arguments for the menu.
	 * @return array $trail Array of links to the post breadcrumb.
	 */
	function tc_breadcrumb_trail_map_rewrite_tags( $post_id = '' , $path = '' , $args = array() ) {

		/* Set up an empty $trail array. */
		$trail = array();

		/* Make sure there's a $path and $post_id before continuing. */
		if ( empty( $path ) || empty( $post_id ) )
			return $trail;

		/* Get the post based on the post ID. */
		$post = get_post( $post_id );

		/* If no post is returned, an error is returned, or the post does not have a 'post' post type, return. */
		if ( empty( $post ) || is_wp_error( $post ) || 'post' !== $post->post_type )
			return $trail;

		/* Trim '/' from both sides of the $path. */
		$path = trim( $path, '/' );

		/* Split the $path into an array of strings. */
		$matches = explode( '/' , $path );

		/* If matches are found for the path. */
		if ( is_array( $matches ) ) {

			/* Loop through each of the matches, adding each to the $trail array. */
			foreach ( $matches as $match ) {

				/* Trim any '/' from the $match. */
				$tag = trim( $match, '/' );

				/* If using the %year% tag, add a link to the yearly archive. */
				if ( '%year%' == $tag )
					$trail[] = '<a href="' . get_year_link( get_the_time( 'Y' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'Y' , 'customizr' ), $post_id ) . '</a>';

				/* If using the %monthnum% tag, add a link to the monthly archive. */
				elseif ( '%monthnum%' == $tag )
					$trail[] = '<a href="' . get_month_link( get_the_time( 'Y' , $post_id ), get_the_time( 'm' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'F Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'F' , 'customizr' ), $post_id ) . '</a>';

				/* If using the %day% tag, add a link to the daily archive. */
				elseif ( '%day%' == $tag )
					$trail[] = '<a href="' . get_day_link( get_the_time( 'Y' , $post_id ), get_the_time( 'm' , $post_id ), get_the_time( 'd' , $post_id ) ) . '" title="' . get_the_time( esc_attr__( 'F j, Y' , 'customizr' ), $post_id ) . '">' . get_the_time( __( 'd' , 'customizr' ), $post_id ) . '</a>';

				/* If using the %author% tag, add a link to the post author archive. */
				elseif ( '%author%' == $tag )
					$trail[] = '<a href="' . get_author_posts_url( $post->post_author ) . '" title="' . esc_attr( get_the_author_meta( 'display_name' , $post->post_author ) ) . '">' . get_the_author_meta( 'display_name' , $post->post_author ) . '</a>';

				/* If using the %category% tag, add a link to the first category archive to match permalinks. */
				elseif ( '%category%' == $tag && 'category' !== $args["singular_{$post->post_type}_taxonomy"] ) {

					/* Get the post categories. */
					$terms = get_the_category( $post_id );

					/* Check that categories were returned. */
					if ( $terms ) {

						/* Sort the terms by ID and get the first category. */
						usort( $terms, '_usort_terms_by_ID' );
						$term = get_term( $terms[0], 'category' );

						/* If the category has a parent, add the hierarchy to the trail. */
						if ( 0 !== $term->parent )
							$trail = array_merge( $trail, $this -> tc_breadcrumb_trail_get_term_parents( $term->parent, 'category' ) );

						/* Add the category archive link to the trail. */
						$trail[] = '<a href="' . get_term_link( $term, 'category' ) . '" title="' . esc_attr( $term->name ) . '">' . $term->name . '</a>';
					}
				}
			}
		}

		/* Return the $trail array. */
		return $trail;
	}

	/**
	 * Gets parent pages of any post type or taxonomy by the ID or Path.  The goal of this function is to create 
	 * a clear path back to home given what would normally be a "ghost" directory.  If any page matches the given 
	 * path, it'll be added.  But, it's also just a way to check for a hierarchy with hierarchical post types.
	 *
	 * @since 0.3.0
	 * @access public
	 * @param int $post_id ID of the post whose parents we want.
	 * @param string $path Path of a potential parent page.
	 * @return array $trail Array of parent page links.
	 */
	function tc_breadcrumb_trail_get_parents( $post_id = '' , $path = '' ) {

		/* Set up an empty trail array. */
		$trail = array();

		/* Trim '/' off $path in case we just got a simple '/' instead of a real path. */
		$path = trim( $path, '/' );

		/* If neither a post ID nor path set, return an empty array. */
		if ( empty( $post_id ) && empty( $path ) )
			return $trail;

		/* If the post ID is empty, use the path to get the ID. */
		if ( empty( $post_id ) ) {

			/* Get parent post by the path. */
			$parent_page = get_page_by_path( $path );

			/* If a parent post is found, set the $post_id variable to it. */
			if ( !empty( $parent_page ) )
				$post_id = $parent_page->ID;
		}

		/* If a post ID and path is set, search for a post by the given path. */
		if ( $post_id == 0 && !empty( $path ) ) {

			/* Separate post names into separate paths by '/'. */
			$path = trim( $path, '/' );
			preg_match_all( "/\/.*?\z/", $path, $matches );

			/* If matches are found for the path. */
			if ( isset( $matches ) ) {

				/* Reverse the array of matches to search for posts in the proper order. */
				$matches = array_reverse( $matches );

				/* Loop through each of the path matches. */
				foreach ( $matches as $match ) {

					/* If a match is found. */
					if ( isset( $match[0] ) ) {

						/* Get the parent post by the given path. */
						$path = str_replace( $match[0], '' , $path );
						$parent_page = get_page_by_path( trim( $path, '/' ) );

						/* If a parent post is found, set the $post_id and break out of the loop. */
						if ( !empty( $parent_page ) && $parent_page->ID > 0 ) {
							$post_id = $parent_page->ID;
							break;
						}
					}
				}
			}
		}

		/* While there's a post ID, add the post link to the $parents array. */
		while ( $post_id ) {

			/* Get the post by ID. */
			$page = get_page( $post_id );

			/* Add the formatted post link to the array of parents. */
			$parents[]  = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( get_the_title( $post_id ) ) . '">' . get_the_title( $post_id ) . '</a>';

			/* Set the parent post's parent to the post ID. */
			$post_id = $page->post_parent;
		}

		/* If we have parent posts, reverse the array to put them in the proper order for the trail. */
		if ( isset( $parents ) )
			$trail = array_reverse( $parents );

		/* Return the trail of parent posts. */
		return $trail;
	}

	/**
	 * Searches for term parents of hierarchical taxonomies.  This function is similar to the WordPress 
	 * function get_category_parents() but handles any type of taxonomy.
	 *
	 * @since 0.3.0
	 * @access public
	 * @param int $parent_id The ID of the first parent.
	 * @param object|string $taxonomy The taxonomy of the term whose parents we want.
	 * @return array $trail Array of links to parent terms.
	 */
	function tc_breadcrumb_trail_get_term_parents( $parent_id = '' , $taxonomy = '' ) {

		/* Set up some default arrays. */
		$trail = array();
		$parents = array();

		/* If no term parent ID or taxonomy is given, return an empty array. */
		if ( empty( $parent_id ) || empty( $taxonomy ) )
			return $trail;

		/* While there is a parent ID, add the parent term link to the $parents array. */
		while ( $parent_id ) {

			/* Get the parent term. */
			$parent = get_term( $parent_id, $taxonomy );

			/* Add the formatted term link to the array of parent terms. */
			$parents[] = '<a href="' . get_term_link( $parent, $taxonomy ) . '" title="' . esc_attr( $parent->name ) . '">' . $parent->name . '</a>';

			/* Set the parent term's parent as the parent ID. */
			$parent_id = $parent->parent;
		}

		/* If we have parent terms, reverse the array to put them in the proper order for the trail. */
		if ( !empty( $parents ) )
			$trail = array_reverse( $parents );

		/* Return the trail of parent terms. */
		return $trail;
	}

}//end of class
?>