BetterCms.Module.MediaManager.Services.DefaultMediaImageService.ReadParametersFormVectorImage C# (CSharp) Метод

        private void ReadParametersFormVectorImage(Stream fileStream, ref Size size)
        {
            XDocument xdocument = XDocument.Load(fileStream);
            var root = xdocument.Root;
            if (root == null || root.Name.LocalName != "svg")
            {
                const string message = "An error has ocurred while trying to read the file";
                throw new ValidationException(() => message, message);
            }
            var attributes = root.Attributes().ToList();

            var widthAttribute = attributes.FirstOrDefault(x => x.Name == "width");

            var heightAttribute = attributes.FirstOrDefault(x => x.Name == "height");

            /* Assume that attribute may look something like '1024px'. We need to match int value */
            Match match;
            int value;
            var regex = new Regex(@"^\d+");
            if (widthAttribute != null)
            {
                match = regex.Match(widthAttribute.Value);
                if (int.TryParse(match.Value, out value))
                {
                    size.Width = value;
                }
            }
            if (heightAttribute != null)
            {
                match = regex.Match(heightAttribute.Value);
                if (int.TryParse(match.Value, out value))
                {
                    size.Height = value;
                }
            }
            if (size.Height * size.Width == 0)
            {
                size.Height = -1;
                size.Width = -1;
            }
        }