lisp/mail/rmailmm.el (rmail-mime-display-header)
(rmail-mime-display-tagline, rmail-mime-display-body): New defsubsts.
(rmail-mime-entity-segment, rmail-mime-toggle-raw)
(rmail-mime-toggle-hidden, rmail-mime-insert-text)
(rmail-mime-insert-bulk, rmail-mime-insert-multipart)
(rmail-mime-insert, rmail-mime-insert-tagline): Use them instead
of a raw aref.
(rmail-mime-entity-segment): To get past the tagline, move forward
2 more lines, to account for the 2 empty lines that precede and
follow the line with the buttons.
(rmail-mime-update-tagline): Move one more line, to get past the
empty line that follows the buttons in the tagline.
* lisp/mail/rmailmm.el (rmail-mime-toggle-raw): Remove entity arg,
which wasn't being used. Add optional arg to force given state.
(rmail-mime): Add optional arg to force given state.
* lisp/mail/rmail.el (rmail-file-coding-system): It's only ever used
in a boolean sense, so just make it a boolean, and fix the doc.
(rmail-show-mime-function, rmail-mime-feature)
(rmail-require-mime-maybe): Doc fixes.
(rmail-show-message-1): Check rmail-show-mime-function is non-nil.
* lisp/mail/rmailmm.el (rmail-show-mime): Doc fix.
lisp/mail/rmailmm.el (rmail-mime-insert-tagline): Insert an extra
newline before and after the tag line, so it doesn't interfere
with determining the paragraph direction of bidirectional text.
Move all defcustoms in this file into this group.
(rmail-mime-media-type-handlers-alist): Revert previous change.
(rmail-mime-show-images): New option.
(rmail-mime-total-number-of-bulk-attachments): Remove variable and all
references to it, since it wasn't actually used for anything.
(rmail-mime-insert-image): New function.
(rmail-mime-image): Use rmail-mime-insert-image.
(rmail-mime-bulk-handler): Remove optional `image' argument, instead
obey the value of `rmail-mime-show-images' option.
there is no newline after the final mime boundary. (Bug#4539)
Move markers on insertion so that any buttons inserted don't end up in
the next part of a multipart message.
suffix to make a unique name, just let the user decide whether or not
to overwrite it. If the input is a directory, write the default
filename to that directory. (Bug#4388)
(rmail-mime-bulk-handler): Ensure the save button's 'directory property
is a filename-as-a-directory.
