WP_Post_Type::add_rewrite_rules() WordPress Method

	public function add_rewrite_rules() {
		global $wp_rewrite, $wp;

		if ( false !== $this->query_var && $wp && is_post_type_viewable( $this ) ) {
			$wp->add_query_var( $this->query_var );
		}

		if ( false !== $this->rewrite && ( is_admin() || get_option( 'permalink_structure' ) ) ) {
			if ( $this->hierarchical ) {
				add_rewrite_tag( "%$this->name%", '(.+?)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&pagename=" );
			} else {
				add_rewrite_tag( "%$this->name%", '([^/]+)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&name=" );
			}

			if ( $this->has_archive ) {
				$archive_slug = true === $this->has_archive ? $this->rewrite['slug'] : $this->has_archive;
				if ( $this->rewrite['with_front'] ) {
					$archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug;
				} else {
					$archive_slug = $wp_rewrite->root . $archive_slug;
				}

				add_rewrite_rule( "{$archive_slug}/?$", "index.php?post_type=$this->name", 'top' );
				if ( $this->rewrite['feeds'] && $wp_rewrite->feeds ) {
					$feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')';
					add_rewrite_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' );
					add_rewrite_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' );
				}
				if ( $this->rewrite['pages'] ) {
					add_rewrite_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$this->name" . '&paged=$matches[1]', 'top' );
				}
			}

			$permastruct_args         = $this->rewrite;
			$permastruct_args['feed'] = $permastruct_args['feeds'];
			add_permastruct( $this->name, "{$this->rewrite['slug']}/%$this->name%", $permastruct_args );
		}
	}