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(rmail-output): If file is an Rmail file,

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use rmail-output-to-rmail-file.
(rmail-output-to-rmail-file): If file exists
and is not an Rmail file, use rmail-output.
If we find an element in rmail-output-file-alist, eval it.
(rmail-file-p): New function.
(rmail-output-file-alist): Now contains expressions to eval.
This commit is contained in:
Richard M. Stallman 1993-07-09 20:46:42 +00:00
parent f920529b21
commit dba3adb09b
1 changed files with 117 additions and 109 deletions
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40
lisp/mail/rmailout.el
View file

@ -1,6 +1,6 @@
;;; rmailout.el --- "RMAIL" mail reader for Emacs: output message to a file.
;; Copyright (C) 1985, 1987 Free Software Foundation, Inc.
;; Copyright (C) 1985, 1987, 1993 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: mail
@ -29,7 +29,10 @@
(defvar rmail-output-file-alist nil
"*Alist matching regexps to suggested output Rmail files.
This is a list of elements of the form (REGEXP . FILENAME).")
This is a list of elements of the form (REGEXP . NAME-EXP).
NAME-EXP may be a string constant giving the file name to use,
or more generally it may be any kind of expression that returns
a file name as a string.")
;;; There are functions elsewhere in Emacs that use this function; check
;;; them out before you change the calling method.
@ -38,6 +41,9 @@ This is a list of elements of the form (REGEXP . FILENAME).")
If the file does not exist, ask if it should be created.
If file is being visited, the message is appended to the Emacs
buffer visiting that file.
If the file exists and is not an Rmail file,
the message is appended in inbox format.
A prefix argument N says to output N consecutive messages
starting with the current one. Deleted messages are skipped and don't count."
(interactive
@ -49,7 +55,7 @@ starting with the current one. Deleted messages are skipped and don't count."
(save-excursion
(goto-char (point-min))
(if (re-search-forward (car (car tail)) nil t)
(setq answer (cdr (car tail))))
(setq answer (eval (cdr (car tail)))))
(setq tail (cdr tail))))
;; If not suggestions, use same file as last time.
(or answer rmail-last-rmail-file))))
@ -64,6 +70,8 @@ starting with the current one. Deleted messages are skipped and don't count."
(setq file-name
(expand-file-name file-name
(file-name-directory rmail-last-rmail-file)))
(if (and (file-readable-p file-name) (not (rmail-file-p file-name)))
(rmail-output file-name count)
(setq rmail-last-rmail-file file-name)
(rmail-maybe-set-message-counters)
(setq file-name (abbreviate-file-name file-name))
@ -126,7 +134,17 @@ starting with the current one. Deleted messages are skipped and don't count."
(if rmail-delete-after-output
(rmail-delete-forward)
(if (> count 0)
(rmail-next-undeleted-message 1)))))
(rmail-next-undeleted-message 1))))))
;; Returns t if file FILE is an Rmail file.
(defun rmail-file-p (file)
(let ((buf (generate-new-buffer " *rmail-file-p*")))
(unwind-protect
(save-excursion
(set-buffer buf)
(insert-file-contents file nil 0 100)
(looking-at "BABYL OPTIONS:"))
(kill-buffer buf))))
;;; There are functions elsewhere in Emacs that use this function; check
;;; them out before you change the calling method.
@ -151,6 +169,8 @@ When called from lisp code, N may be omitted."
(expand-file-name file-name
(and rmail-last-file
(file-name-directory rmail-last-file))))
(if (and (file-readable-p file) (rmail-file-p file-name))
(rmail-output-to-rmail-file file-name count)
(setq rmail-last-file file-name)
(while (> count 0)
(let ((rmailbuf (current-buffer))
@ -159,18 +179,6 @@ When called from lisp code, N may be omitted."
(save-excursion
(set-buffer tembuf)
(erase-buffer)
;; If we can do it, read a little of the file
;; to check whether it is an RMAIL file.
;; If it is, don't mess it up.
(and (file-readable-p file-name)
(progn (insert-file-contents file-name nil 0 20)
(looking-at "BABYL OPTIONS:\n"))
(error (save-excursion
(set-buffer rmailbuf)
(substitute-command-keys
"Use \\[rmail-output-to-rmail-file] to output to Rmail file `%s'"))
(file-name-nondirectory file-name)))
(erase-buffer)
(insert-buffer-substring rmailbuf)
(insert "\n")
(goto-char (point-min))