public virtual void AddPriceTag(PriceTagSettings item)
        {
            if (PriceTags.Contains(item))
            {
                return;
            }

            item.Settings = this;
            PriceTags.Add(item);
        }
        public void AddParserSettings(ExtractorSettings parserSettings)
        {
            if (PriceTags == null)
            {
                PriceTags = new List <string>();
            }

            if (UseParserSettings)
            {
                foreach (var priceHtmlPath in parserSettings.PriceHtmlPath)
                {
                    PriceTags.Add(priceHtmlPath.Split('.').Last());
                }

                PriceTags.Add(parserSettings.DiscountHtmlPath.Split('.').Last());
            }
        }