What characters need to be escaped in .NET Regex?

Question

In a .NET Regex pattern, what special characters need to be escaped in order to be used literally?

Answer 1

I think you can get the list of chars as

List chars = Enumerable.Range(0,65535)
                .Where(i=>((char)i).ToString()!=Regex.Escape(((char)i).ToString()))
                .Select(i=>(char)i)
                .ToList();

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\t\n\f\r#$()*+.?[\^{|