of mail-fetch-field by rmail-summary-line-decoder.
(rmail-new-summary): Be sure to go to the Rmail buffer. If
rmail-enable-mime is non-nil, set rmail-summary-buffer of
rmail-view-buffer to nil.
(rmail-summary-undelete): If rmail-enable-mime is non-nil, pop to
rmail-view-buffer.
(rmail-summary-scroll-msg-up): Handle rmail-view-buffer, not
rmail-buffer.
(rmail-summary-scroll-msg-down): Likewise.
(rmail-summary-beginning-of-message): Likewise.
(rmail-summary-wipe): Likewise.
(rmail-summary-toggle-header): Use save-window-excursion, not
save-excursion. Update point in rmail-view-buffer, not in
rmail-buffer.
(rmail-summary-reply): Before calling rmail-reply, set buffer to
rmail-view-buffer, not rmail-buffer.
(rmail-search-mime-message-function)
(rmail-search-mime-header-function): New variables.
(rmail-expunge-and-save): Be sure to set-buffer to the Rmail
buffer.
(rmail-quit): Bury `rmail-buffer' after `rmail-view-buffer' is
hidden.
(rmail-get-new-mail): Likewise.
(rmail-toggle-header): Likewise. If rmail-enable-mime is non-nil,
call rmai-show-mime-function.
(rmail-display-labels): If rmail-enable-mime is non-nil, update
mode-line-process of rmail-view-buffer.
(rmail-set-attribute): Be sure to set-buffer to the Rmail buffer.
(rmail-show-message): Be sure to call rmail-auto-file in the Rmail
buffer.
(rmail-next-message): Be sure to set-buffer to the Rmail buffer.
(rmail-next-undeleted-message): Likewise.
(rmail-message-regexp-p): If rmail-enable-mime is non-nil, call
rmail-search-mime-header-function.
(rmail-search-message): New function.
(rmail-search): Call rmail-search-message to check if a message
matches REGEXP, lastly update point after calling
rmail-show-message.
(rmail-undelete-previous-message): Be sure to set-buffer to the
Rmail buffer.
(rmail-expunge-confirmed): Likewise.
(rmail-only-expunge): Likewise.
(rmail-reply): If rmail-enable-mime is non-nil, don't narrow to
header region, refer to rmail-msgref-vector while setting the
current buffer to rmail-buffer temporarily.
(rmail-forward): Be sure to bind forward-buffer to the Rmail
buffer. If rmail-enable-mime is non-nil, call
rmail-insert-mime-forwarded-message-function instead of inserting
forwarded message by itself.
(mail-extr-skip-whitespace-forward, mail-extr-nuke-char-at)
(mail-extr-skip-whitespace-backward, mail-extr-undo-backslash-quoting):
Use `defsubst' rather than a macro to ease debugging.
(mail-extr-last): Remove (use `last' instead).
(mail-extract-address-components): Properly reset the syntax-table
after parsing an address. Use `last' rather than mail-extr-last.
Make sure the end marker stays at the very end.
Use mail-mode-hook instead of mail-setup-hook. Otherwise
continuing an interrupted message with C-u C-x m for instence,
winds up in Mail mode without abbrevs.
