parse_barcode (Token_lib)

Parses configured barcode formats to extract quantity, price, and item identifier from scanned barcode input, updating by reference. Enables flexible POS barcode handling.

	public function parse_barcode(&$quantity, &$price,  &$item_id_or_number_or_item_kit_or_receipt)
	{
		$barcode_formats = json_decode($this->CI->config->item('barcode_formats'));
		$barcode_tokens = Token::get_barcode_tokens();

		if(!empty($barcode_formats))
		{
			foreach($barcode_formats as $barcode_format)
			{
				$parsed_results = $this->parse($item_id_or_number_or_item_kit_or_receipt, $barcode_format, $barcode_tokens);
				$quantity = (isset($parsed_results['W'])) ? (int) $parsed_results['W'] / 1000 : 1;
				$item_id_or_number_or_item_kit_or_receipt = (isset($parsed_results['I'])) ?
					$parsed_results['I'] : $item_id_or_number_or_item_kit_or_receipt;
				$price = (isset($parsed_results['P'])) ? (double) $parsed_results['P'] : NULL;
			}
		}
		else 
		{
			$quantity = 1;
		}
	
	}