@nietras

Because my incoming data uses all ASCII characters (32-128), I was hoping to use the unit separator when reading and writing CSV. My writer declaration:

using var writer = Sep.Writer(options => options with
{
    Sep = Sep.New('\u001f'),
    WriteHeader = true
}).ToText();

However, this throws an argument out of range exception which I can see is explicitly happening here as part of validating the separator:

Is there some reason the ASCII separator characters (28-31) are prohibited from being used as separators? Is there some way to disable this validation or work around this prohibition?