Content-Disposition header

[mikedilger]

Not strictly part of HTTP/1.1 but comes up in common usage.
See:

• RFC 6266
• Browser conformance tests at: http://greenbytes.de/tech/tc2231/
• IANA assignment at: http://www.iana.org/assignments/cont-disp/cont-disp.xhtml

(I'm just documenting this. I'm creating a heavily stripped down variant for my multipart/form-data parsing, and don't need a proper one at present).

[mikedilger]

If anyone takes this on, you might want to start with the one at https://github.com/mikedilger/formdata/blob/master/src/headers.rs and then extend it to comply with the standards listed above.