RTTheme 17 Revised Breadcrumbs.php to not link last item

<?php

/* RT-Breadcrumb Function */
function rt_breadcrumb(){
    global $taxonomy,$term_slug,$post,$delimiter;

    if(!get_option('rttheme_breadcrumb_menus')){
        return false;
    }

    //Markup
    $before='<div class="breadcrumb">'.wpml_t(THEMESLUG, 'Breadcrumb Menu Text', get_option(THEMESLUG.'_breadcrumb_text')).' ';
    $after='</div>';
    $delimiter=' | ';

    /*  WooCommerce Breadcrumb */
    if ( function_exists( 'woocommerce_breadcrumb' ) ) {
        if( is_woocommerce() ){
            $defaults = array(
                'delimiter'  => $delimiter,
                'wrap_before'  => $before,
                'wrap_after' => $after,
                'before'   => '',
                'after'   => '',
                'home'    => null
            );

            woocommerce_breadcrumb($defaults);
            return false;
        }
    }


    echo $before;

    //Home Page
    echo "<a href=\"". BLOGURL ."\" title=\"". get_bloginfo('name')."\">".__( 'Home', 'rt_theme' )."</a>";

    // page parents function
    function page_parents($parent_page_id,$child_pages){
        global $delimiter;

        $parent_page = get_page($parent_page_id);
        $page_parents = $delimiter."<a href=\"".get_permalink($parent_page->ID)."\" title=\"". get_the_title($parent_page->ID) ."\" >". get_the_title($parent_page->ID) ."</a>" .$child_pages;

        if ($parent_page->post_parent) page_parents($parent_page->post_parent,$page_parents);

        else echo $page_parents;

    }


    // term parents function
    function term_parents($term_id,$child_terms){
        global $taxonomy,$delimiter;

        $parent_term = get_term_by('ID',$term_id, $taxonomy);
        $term_parents = $delimiter."<a href=\"".get_term_link($parent_term->slug,$taxonomy)."\" title=\"". $parent_term->name ."\" >". $parent_term->name ."</a>" .$child_terms;

        if ($parent_term->parent) term_parents($parent_term -> parent,$term_parents);

        else echo $term_parents;

    }

    //get start page
    function get_start_page($start_page){
        global $delimiter;

        //start page parents
        $get_start_page=get_page($start_page);
        if ($get_start_page -> post_parent){
            page_parents( $get_start_page -> post_parent,'');
        }

        //start page
        if ($start_page && !get_query_var('lang')) {
            echo  $delimiter."<a href=\"".get_permalink($start_page)."\" title=\"". get_the_title($start_page) ."\" >". get_the_title($start_page) ."</a>";
        }
    }

    //terms
    function term_links(){
        global $taxonomy,$post_type,$term_slug,$delimiter;

        //Find start page and define taxonomy names
        if($taxonomy=="product_categories"){
            $start_page=get_option('rttheme_product_list');
        }elseif($taxonomy=="portfolio_categories"){
            $start_page=get_option('rttheme_portf_page');
        }

        //get start page
        if ($start_page) get_start_page($start_page);


        $term=get_term_by('slug',$term_slug, $taxonomy);

        //parent terms
        if (is_object($term) && $term -> parent){
            echo term_parents($term -> parent,'');
        }

        $post_type = get_post_type();
        //current term
        if(is_object($term) && $term->slug) {
        if($post_type == 'products'  && is_archive() && !is_single()|| $post_type == 'portfolio' && is_archive() && !is_single()){
        echo  $delimiter.  $term->name ;
        }
        else {
            echo  $delimiter."<a href=\"".get_term_link($term->slug,$taxonomy)."\" title=\"". $term->name ."\" >". $term->name ."</a>";
            }
        }
    }



    //Pages
    if ( is_page() ){
        //parent pages
        if ($post -> post_parent){
            page_parents( $post -> post_parent,'');
        }

        //current page
        echo  $delimiter ."". $post->post_title;
    }

    //Single
    elseif (is_single() && !is_attachment()){
        // Get post type
        $post_type = get_post_type();

        //Taxonomies
        if($post_type == 'products' || $post_type == 'portfolio'){

            term_links();
            //current page
            echo  $delimiter. get_the_title();
            //$delimiter."<a href=\"".get_permalink()."\" title=\"". get_the_title() ."\" >". get_the_title() ."</a>";

        }else{
        //Categories

        //start page
        $start_page=get_option('rttheme_blog_page');

        //get start page
        if ($start_page) get_start_page($start_page);

            $category_id = get_the_category();
            $category_id = $category_id[0]->cat_ID;//only one category can be show in the list  - the first one
            echo $delimiter;
            if($category_id){
                echo get_category_parents($category_id, TRUE, $delimiter, FALSE );
            }
            echo $post->post_title;
        }

    //Category
    }elseif (is_category()){
        //start page
        $start_page=get_option('rttheme_blog_page');

        //get start page
        if ($start_page) get_start_page($start_page);

            //echo $delimiter."".get_category_parents(get_query_var('cat'), TRUE, $delimiter, FALSE);
            $category_id = get_category(get_query_var('cat'));
            $parent_id = $category_id->parent;
            if (!$parent_id==0) {
              echo $delimiter."".get_category_parents($parent_id, TRUE, $delimiter, FALSE );
              echo single_cat_title();
             }
             else  {
                echo $delimiter;
                echo single_cat_title();
                }


    //Taxonomy
    }elseif (is_tax()){
        term_links();
    } else {
        echo  $delimiter."";
        wp_title('');
    }

    echo $after;

    wp_reset_query();
}
?>