Encoding API prososal for libstd/libextra

[SimonSapin]

Hi,

As you may have heard, there was some discussion last week about importing some of rust-encoding into Rust’s libstd or libextra. I think it is important to get the API right first (w.r.t. errors handling, incremental processing, etc.) The latest version of my proposal is on the rust-dev mailing list: (but see the rest of the thread.)

https://mail.mozilla.org/pipermail/rust-dev/2013-September/005556.html

I would appreciate your feedback on this, especially on using conditions for error handling, and on the necessity for open-ended error handling as opposed to a fixed set of modes as in recent versions of the spec.