[tei-council] mimeType=

[Syd Bauman]

We now have 4 elements which each individually declare a mimeType=
attribute. 

<binaryObject> attribute mimeType { data.word }?, mwa
  The MIME type to be used for the object when it is decoded

<equiv>        attribute mimeType { data.word }?, opt
  MIME type of external filter script

<graphic>      attribute mimeType { data.word }?, mwa
  The MIME type

<rendition>    attribute mimeType { text }?, [defaults to opt]
  supplies a MIME type for the content of this element.


Recommendation
--------------
New class, att.internetMedia (or whatever) that defines the mimeType=
attribute as 'mwa' with datatype data.word, and a description of
"specifies the applicable multimedia internet mail extension (MIME)
media type". These four elements become members of this class. The
remarks element for this class would include a reference to the MIME
type registry (http://www.iana.org/assignments/media-types/).

This means that the information about *what* the attribute is the
MIME type for, and (in the case of <binaryObject>) that the contents
need to be decoded before the MIME type applies, will need to be
noted in the remarks section of the tagdoc for the element.

It's also a real change in the case of <equiv>, from optional to
mandatory when applicable.