[recursive]

`column.Substring(1, column.Length - 2)` could use the new-ish range indexing syntax.

    column[1..^1]

[vilark]

FYI I got rid of this line, now I just don't add the quotes in the first place, unless the caller requests it. Performance didn't actually change, but it looks smarter. Thanks again for the review though.

[vilark]

Thanks... I didn't think that would compile on .net 6, but it does!

[ygra]

You can probably shorten it to

    column[1..]

and it compiles down to a Substring call, and ranges are part of C# 8, so they exist since .NET Core 3.1. But even if the syntax is newer (e.g. collection expressions in C# 12) you can often also use features on older target frameworks if they don't require additional runtime support (and even that can often be retrofitted internally).

[recursive]

That's different. It includes the last character.