mime

1. Specify the MIME type and extension for which to add support
   application/cbor-seq
2. Share an example file
   ...
3. Optionally, add a reference to the specification of the file format.
   https://www.rfc-editor.org/rfc/rfc8742.html

It would be useful to have a helper func something like ContentReader() the creates a reader from the []byte of Part.Content. It's not difficult to do this of course, but this would be an easy to provide helper function so that the mechanics can be encapsulated.

Release or branch I am using:

github.com/jhillyerd/enmime v0.9.0

(Please attach a sample message if you feel it will help repro

In https://mimesniff.spec.whatwg.org/#parsing-a-mime-type the following step might be clearer if it explicitly said the trailing sequence after " was to be discarded. Might also be better if the example contains a ';' since the step mentions ';'

Current:

Collect a sequence of code points that are not U+003B (;) from input, given position.
Example: Given text/html;charset="shift_jis"iso-20