protected function get_formating_callback() {

		/**
		 * Columns not mentioned here will get parsed with 'wc_clean'.
		 * column_name => callback.
		 */
		$data_formatting = array(
			'id'                => array( $this, 'parse_id_field' ),
			'type'              => array( $this, 'parse_comma_field' ),
			'published'         => array( $this, 'parse_published_field' ),
			'featured'          => array( $this, 'parse_bool_field' ),
			'date_on_sale_from' => array( $this, 'parse_date_field' ),
			'date_on_sale_to'   => array( $this, 'parse_date_field' ),
			'name'              => array( $this, 'parse_skip_field' ),
			'short_description' => array( $this, 'parse_description_field' ),
			'description'       => array( $this, 'parse_description_field' ),
			'manage_stock'      => array( $this, 'parse_bool_field' ),
			'low_stock_amount'  => array( $this, 'parse_stock_quantity_field' ),
			'backorders'        => array( $this, 'parse_backorders_field' ),
			'stock_status'      => array( $this, 'parse_bool_field' ),
			'sold_individually' => array( $this, 'parse_bool_field' ),
			'width'             => array( $this, 'parse_float_field' ),
			'length'            => array( $this, 'parse_float_field' ),
			'height'            => array( $this, 'parse_float_field' ),
			'weight'            => array( $this, 'parse_float_field' ),
			'reviews_allowed'   => array( $this, 'parse_bool_field' ),
			'purchase_note'     => 'wp_filter_post_kses',
			'price'             => 'wc_format_decimal',
			'regular_price'     => 'wc_format_decimal',
			'stock_quantity'    => array( $this, 'parse_stock_quantity_field' ),
			'category_ids'      => array( $this, 'parse_categories_field' ),
			'tag_ids'           => array( $this, 'parse_tags_field' ),
			'tag_ids_spaces'    => array( $this, 'parse_tags_spaces_field' ),
			'shipping_class_id' => array( $this, 'parse_shipping_class_field' ),
			'images'            => array( $this, 'parse_images_field' ),
			'parent_id'         => array( $this, 'parse_relative_field' ),
			'grouped_products'  => array( $this, 'parse_relative_comma_field' ),
			'upsell_ids'        => array( $this, 'parse_relative_comma_field' ),
			'cross_sell_ids'    => array( $this, 'parse_relative_comma_field' ),
			'download_limit'    => array( $this, 'parse_int_field' ),
			'download_expiry'   => array( $this, 'parse_int_field' ),
			'product_url'       => 'esc_url_raw',
			'menu_order'        => 'intval',
			'tax_status'        => array( $this, 'parse_tax_status_field' ),
		);

		/**
		 * Match special column names.
		 */
		$regex_match_data_formatting = array(
			'/attributes:value*/'    => array( $this, 'parse_comma_field' ),
			'/attributes:visible*/'  => array( $this, 'parse_bool_field' ),
			'/attributes:taxonomy*/' => array( $this, 'parse_bool_field' ),
			'/downloads:url*/'       => array( $this, 'parse_download_file_field' ),
			'/meta:*/'               => 'wp_kses_post', // Allow some HTML in meta fields.
		);

		$callbacks = array();

		// Figure out the parse function for each column.
		foreach ( $this->get_mapped_keys() as $index => $heading ) {
			$callback = 'wc_clean';

			if ( isset( $data_formatting[ $heading ] ) ) {
				$callback = $data_formatting[ $heading ];
			} else {
				foreach ( $regex_match_data_formatting as $regex => $callback ) {
					if ( preg_match( $regex, $heading ) ) {
						$callback = $callback;
						break;
					}
				}
			}

			$callbacks[] = $callback;
		}

		return apply_filters( 'woocommerce_product_importer_formatting_callbacks', $callbacks, $this );
	}