Rebel.Cms.Web.StylesheetHelper.ReplaceRule C# (CSharp) Method

        public static void ReplaceRule(File input, string oldRuleName, StylesheetRule rule)
        {
            var contents = Encoding.UTF8.GetString(input.ContentBytes);
            var ruleRegex = new Regex(string.Format(_ruleRegexFormat, oldRuleName), RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.Singleline);
            contents = ruleRegex.Replace(contents, rule != null ? rule.ToString() : "");
            input.ContentBytes = Encoding.UTF8.GetBytes(contents);
        }