1 - make utf8_from_encodedword use the std.result interface
3 - all the complicated error return functions can get simpler by
4 use of "auto". Especially, you want to be able to do
6 match do_something(args)
7 | `std.Okay r: result = r
8 | `std.Err auto e: -> `std.Err std.fmt("Cannot frobinate: {}", e)
11 - Remember to test attribute=value stuff for Content-XXX with
12 comments. See RFC 2045, section 5.1 (towards the end)
14 - RFC 2047 "These are the ONLY locations where an 'encoded-word' may appear."
16 - Use https://www.imc.org/mimetest/MimeBack.tgz as test bed. Get
18 https://web.archive.org/web/20140903210447/https://www.imc.org/mimetest/MimeBack.tgz