System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
   at System.Text.StringBuilder.ToString()
   at System.Text.RegularExpressions.Regex.Replace(String input, String replacement)
   at sidearm.MarkupParser.do_html_transforms(String content, IEnumerable`1 transforms)
   at sidearm.MarkupParser.DoHtmlTransforms(String content, HttpContext context)