* mail-format.c: Various improvements:
(call_handler_function, etc): Add a "mime_type" argument to the
handlers, so that if a part is tagged as
"application/octet-stream", and we figure out that it's really
something else, the handler we call can know what that something
else is.
(handle_text_enriched): Small fixes to make this not do
text/enriched-specific syntax in text/richtext or vice versa.
(handle_mystery): Allow for mystery data that can't even be saved
to disk. (ie, unrecognized external-body). Let the caller specify
the URL to use.
(handle_message_external_body): New function to deal with
message/external-body parts. Generates URLs for anon-ftp,
local-file, and URL access-types, and a more-useful-than-before
descriptive message for other types.
(handle_audio, handle_undisplayable): Use gnome_mime_get_value to
try to get a description of the MIME type to display to the user
rather than the raw form. (This will only work if the user has
recent gnome-vfs installed. [If they don't, it works just like
it used to.])
svn path=/trunk/; revision=3234
b5f4615bac
