WebMarkupMin.Core.GenericHtmlMinifier.IsCustomAttribute C# (CSharp) Метод

        private static bool IsCustomAttribute(HtmlAttribute attribute)
        {
            bool isCustomAttribute = false;

            if (attribute.Type == HtmlAttributeType.Text)
            {
                string attributeNameInLowercase = attribute.NameInLowercase;
                int charCount = attributeNameInLowercase.Length;

                for (int charIndex = 0; charIndex < charCount; charIndex++)
                {
                    char charValue = attributeNameInLowercase[charIndex];

                    if (!charValue.IsAlphaLower())
                    {
                        isCustomAttribute = true;
                        break;
                    }
                }

                if (isCustomAttribute)
                {
                    isCustomAttribute = attributeNameInLowercase != "accept-charset"
                        && attributeNameInLowercase != "http-equiv";
                }
            }

            return isCustomAttribute;
        }