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690 lines
27 KiB
EmacsLisp
690 lines
27 KiB
EmacsLisp
;;; mailabbrev.el --- abbrev-expansion of mail aliases.
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;; Author: Jamie Zawinski <jwz@lucid.com>
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;; Roland McGrath <roland@gnu.ai.mit.edu>
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;; Created: 19 Oct 90
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;; Last-Modified: 13 Jun 92
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;;; ??? We must get papers for this or delete it.
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;;; Copyright (C) 1985, 1986, 1987, 1992 Free Software Foundation, Inc.
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;;; This file is part of GNU Emacs.
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;;; GNU Emacs is free software; you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 2, or (at your option)
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;;; any later version.
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;;; GNU Emacs is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Emacs; see the file COPYING. If not, write to
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;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;;; This file ensures that, when the point is in a To:, CC:, BCC:, or From:
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;;; field, word-abbrevs are defined for each of your mail aliases. These
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;;; aliases will be defined from your .mailrc file (or the file specified by
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;;; the MAILRC environment variable) if it exists. Your mail aliases will
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;;; expand any time you type a word-delimiter at the end of an abbreviation.
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;;;
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;;; What you see is what you get: no abbreviations will be expanded after you
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;;; have sent the mail, unlike the old system. This means you don't suffer
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;;; the annoyance of having the system do things behind your back -- if an
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;;; address you typed is going to be rewritten, you know it immediately,
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;;; instead of after the mail has been sent and it's too late to do anything
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;;; about it. You will never again be screwed because you forgot to delete an
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;;; old alias from your .mailrc when a new local user arrives and is given a
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;;; userid which conflicts with one of your aliases, for example.
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;;;
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;;; Your mail alias abbrevs will be in effect only when the point is in an
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;;; appropriate header field. When in the body of the message, or other
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;;; header fields, the mail aliases will not expand. Rather, the normal
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;;; mode-specific abbrev table (mail-mode-abbrev-table) will be used if
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;;; defined. So if you use mail-mode specific abbrevs, this code will not
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;;; adversely affect you. You can control which header fields the abbrevs
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;;; are used in by changing the variable mail-abbrev-mode-regexp.
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;;;
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;;; If auto-fill mode is on, abbrevs will wrap at commas instead of at word
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;;; boundaries; also, header continuation-lines will be properly indented.
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;;;
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;;; You can also insert a mail alias with mail-interactive-insert-alias
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;;; (bound to C-c C-a), which prompts you for an alias (with completion)
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;;; and inserts its expansion at point.
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;;;
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;;; This file fixes a bug in the old system which prohibited your .mailrc
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;;; file from having lines like
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;;;
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;;; alias someone "John Doe <doe@quux.com>"
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;;;
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;;; That is, if you want an address to have embedded spaces, simply surround it
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;;; with double-quotes. This is necessary because the format of the .mailrc
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;;; file bogusly uses spaces as address delimiters. The following line defines
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;;; an alias which expands to three addresses:
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;;;
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;;; alias foobar addr-1 addr-2 "address three <addr-3>"
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;;;
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;;; (This is bogus because mail-delivery programs want commas, not spaces,
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;;; but that's what the file format is, so we have to live with it.)
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;;;
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;;; If you like, you can call the function define-mail-alias to define your
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;;; mail-aliases instead of using a .mailrc file. When you call it in this
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;;; way, addresses are separated by commas.
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;;;
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;;; CAVEAT: This works on most Sun systems; I have been told that some versions
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;;; of /bin/mail do not understand double-quotes in the .mailrc file. So you
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;;; should make sure your version does before including verbose addresses like
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;;; this. One solution to this, if you are on a system whose /bin/mail doesn't
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;;; work that way, (and you still want to be able to /bin/mail to send mail in
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;;; addition to emacs) is to define minimal aliases (without full names) in
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;;; your .mailrc file, and use define-mail-alias to redefine them when sending
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;;; mail from emacs; this way, mail sent from /bin/mail will work, and mail
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;;; sent from emacs will be pretty.
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;;;
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;;; Aliases in the mailrc file may be nested. If you define aliases like
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;;; alias group1 fred ethel
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;;; alias group2 larry curly moe
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;;; alias everybody group1 group2
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;;; Then when you type "everybody" on the To: line, it will be expanded to
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;;; fred, ethyl, larry, curly, moe
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;;;
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;;; Aliases may also contain forward references; the alias of "everybody" can
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;;; preceed the aliases of "group1" and "group2".
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;;;
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;;; This code also understands the "source" .mailrc command, for reading
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;;; aliases from some other file as well.
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;;;
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;;; Aliases may contain hyphens, as in "alias foo-bar foo@bar"; word-abbrevs
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;;; normally cannot contain hyphens, but this code works around that for the
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;;; specific case of mail-alias word-abbrevs.
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;;;
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;;; To read in the contents of another .mailrc-type file from emacs, use the
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;;; command Meta-X merge-mail-aliases. The rebuild-mail-aliases command is
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;;; similar, but will delete existing aliases first.
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;;;
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;;; If you would like your aliases to be expanded when you type M-> or ^N to
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;;; move out of the mail-header into the message body (instead of having to
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;;; type SPC at the end of the abbrev before moving away) then you can do
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;;;
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;;; (define-key mail-mode-map "\C-n" 'abbrev-hacking-next-line)
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;;; (define-key mail-mode-map "\M->" 'abbrev-hacking-end-of-buffer)
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;;;
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;;; If you want multiple addresses separated by a string other than ", " then
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;;; you can set the variable mail-alias-separator-string to it. This has to
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;;; be a comma bracketed by whitespace if you want any kind of reasonable
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;;; behaviour.
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;;;
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;;; Thanks to Harald Hanche-Olsen, Michael Ernst, David Loeffler, and
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;;; Noah Friedman for suggestions and bug reports.
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;;;
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;;; INSTALLATION
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;;;
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;;; If you are using Emacs 18, you shouldn't have to do anything at all to
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;;; install this code other than load this file. You might want to do this
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;;; to have this code loaded only when needed:
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;;;
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;;; (setq mail-setup-hook '(lambda () (require 'mail-abbrevs)))
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;;;
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;;; Simply loading this file will redefine and overload the required
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;;; functions.
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;;;
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;;; If you want to install this code more permanently (instead of loading
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;;; it as a patch) you need to do the following:
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;;;
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;;; - Remove the entire file mailalias.el;
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;;; - Remove the definition of mail-aliases from sendmail.el;
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;;; - Add a call to mail-aliases-setup to the front of the function
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;;; mail-setup in the file sendmail.el;
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;;; - Remove the call to expand-mail-aliases from the function
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;;; sendmail-send-it in the file sendmail.el;
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;;; - Remove the autoload of expand-mail-aliases from the file sendmail.el;
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;;; - Remove the autoload of build-mail-aliases from the file sendmail.el;
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;;; - Add an autoload of define-mail-alias to loaddefs.el.
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;;; Code:
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(require 'sendmail)
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(defvar mail-abbrev-mailrc-file nil
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"Name of file with mail aliases. If nil, ~/.mailrc is used.")
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(defmacro mail-abbrev-mailrc-file ()
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'(or mail-abbrev-mailrc-file
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(setq mail-abbrev-mailrc-file
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(or (getenv "MAILRC") "~/.mailrc"))))
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;; originally defined in sendmail.el - used to be an alist, now is a table.
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(defvar mail-aliases nil
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"Word-abbrev table of mail address aliases.
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If this is nil, it means the aliases have not yet been initialized and
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should be read from the .mailrc file. (This is distinct from there being
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no aliases, which is represented by this being a table with no entries.)")
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;;;###autoload
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(defun mail-aliases-setup ()
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(if (and (not (vectorp mail-aliases))
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(file-exists-p (mail-abbrev-mailrc-file)))
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(build-mail-aliases))
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(make-local-variable 'pre-abbrev-expand-hook)
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(setq pre-abbrev-expand-hook
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(cond ((and (listp pre-abbrev-expand-hook)
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(not (eq 'lambda (car pre-abbrev-expand-hook))))
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(cons 'sendmail-pre-abbrev-expand-hook pre-abbrev-expand-hook))
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(t
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(list 'sendmail-pre-abbrev-expand-hook pre-abbrev-expand-hook))))
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(abbrev-mode 1))
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;;; Originally defined in mailalias.el. Changed to call define-mail-alias
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;;; with an additional argument.
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;;;###autoload
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(defun build-mail-aliases (&optional file recursivep)
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"Read mail aliases from .mailrc and set mail-aliases."
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(setq file (expand-file-name (or file (mail-abbrev-mailrc-file))))
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(if (vectorp mail-aliases)
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nil
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(setq mail-aliases nil)
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(define-abbrev-table 'mail-aliases '()))
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(message "Parsing %s..." file)
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(let ((buffer nil)
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(obuf (current-buffer)))
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(unwind-protect
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(progn
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(setq buffer (generate-new-buffer "mailrc"))
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(buffer-disable-undo buffer)
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(set-buffer buffer)
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(cond ((get-file-buffer file)
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(insert (save-excursion
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(set-buffer (get-file-buffer file))
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(buffer-substring (point-min) (point-max)))))
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((not (file-exists-p file)))
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(t (insert-file-contents file)))
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;; Don't lose if no final newline.
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(goto-char (point-max))
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(or (eq (preceding-char) ?\n) (newline))
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(goto-char (point-min))
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;; Delete comments from the file
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(while (search-forward "# " nil t)
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(let ((p (- (point) 2)))
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(end-of-line)
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(delete-region p (point))))
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(goto-char (point-min))
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;; handle "\\\n" continuation lines
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(while (not (eobp))
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(end-of-line)
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(if (= (preceding-char) ?\\)
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(progn (delete-char -1) (delete-char 1) (insert ?\ ))
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(forward-char 1)))
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(goto-char (point-min))
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(while (re-search-forward
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"^\\(a\\(lias\\|\\)\\|g\\(roup\\)\\|source\\)[ \t]+" nil t)
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(beginning-of-line)
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(if (looking-at "source[ \t]+\\([^ \t\n]+\\)")
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(progn
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(end-of-line)
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(build-mail-aliases
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(buffer-substring (match-beginning 1) (match-end 1)) t))
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(re-search-forward "[ \t]+\\([^ \t\n]+\\)")
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(let* ((name (buffer-substring
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(match-beginning 1) (match-end 1)))
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(start (progn (skip-chars-forward " \t") (point))))
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(end-of-line)
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; (message "** %s \"%s\"" name (buffer-substring start (point)))(sit-for 1)
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(define-mail-alias
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name
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(buffer-substring start (point))
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t))))
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;; Resolve forward references in .mailrc file.
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;; This would happen automatically before the first abbrev was
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;; expanded, but why not do it now.
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(or recursivep (mail-resolve-all-aliases))
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mail-aliases)
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(if buffer (kill-buffer buffer))
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(set-buffer obuf)))
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(message "Parsing %s... done" file))
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(defvar mail-alias-separator-string ", "
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"*A string inserted between addresses in multi-address mail aliases.
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This has to contain a comma, so \", \" is a reasonable value. You might
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also want something like \",\\n \" to get each address on its own line.")
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;; define-mail-alias sets this flag, which causes mail-resolve-all-aliases
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;; to be called before expanding abbrevs if it's necessary.
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(defvar mail-abbrev-aliases-need-to-be-resolved t)
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;; originally defined in mailalias.el ; build-mail-aliases calls this with
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;; stuff parsed from the .mailrc file.
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;;
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;;;###autoload
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(defun define-mail-alias (name definition &optional from-mailrc-file)
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"Define NAME as a mail-alias that translates to DEFINITION.
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If DEFINITION contains multiple addresses, separate them with commas."
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;; When this is called from build-mail-aliases, the third argument is
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;; true, and we do some evil space->comma hacking like /bin/mail does.
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(interactive "sDefine mail alias: \nsDefine %s as mail alias for: ")
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;; Read the defaults first, if we have not done so.
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(if (vectorp mail-aliases)
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nil
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(setq mail-aliases nil)
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(define-abbrev-table 'mail-aliases '())
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(if (file-exists-p (mail-abbrev-mailrc-file))
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(build-mail-aliases)))
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;; strip garbage from front and end
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(if (string-match "\\`[ \t\n,]+" definition)
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(setq definition (substring definition (match-end 0))))
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(if (string-match "[ \t\n,]+\\'" definition)
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(setq definition (substring definition 0 (match-beginning 0))))
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(let ((result '())
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(start 0)
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(L (length definition))
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end)
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(while start
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;; If we're reading from the mailrc file, then addresses are delimited
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;; by spaces, and addresses with embedded spaces must be surrounded by
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;; double-quotes. Otherwise, addresses are separated by commas.
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(if from-mailrc-file
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(if (eq ?\" (aref definition start))
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(setq start (1+ start)
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end (string-match "\"[ \t,]*" definition start))
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(setq end (string-match "[ \t,]+" definition start)))
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(setq end (string-match "[ \t\n,]*,[ \t\n,]*" definition start)))
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(setq result (cons (substring definition start end) result))
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(setq start (and end
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(/= (match-end 0) L)
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(match-end 0))))
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(setq definition (mapconcat (function identity)
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(nreverse result)
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mail-alias-separator-string)))
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(setq mail-abbrev-aliases-need-to-be-resolved t)
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(setq name (downcase name))
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;; use an abbrev table instead of an alist for mail-aliases.
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(let ((abbrevs-changed abbrevs-changed)) ; protect this from being changed.
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(define-abbrev mail-aliases name definition 'mail-abbrev-expand-hook)))
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(defun mail-resolve-all-aliases ()
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"Resolve all forward references in the mail aliases table."
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(if mail-abbrev-aliases-need-to-be-resolved
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(progn
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;; (message "Resolving mail aliases...")
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(if (vectorp mail-aliases)
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(mapatoms (function mail-resolve-all-aliases-1) mail-aliases))
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(setq mail-abbrev-aliases-need-to-be-resolved nil)
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;; (message "Resolving mail aliases... done.")
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)))
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(defun mail-resolve-all-aliases-1 (sym &optional so-far)
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(if (memq sym so-far)
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(error "mail alias loop detected: %s"
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(mapconcat 'symbol-name (cons sym so-far) " <- ")))
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(let ((definition (and (boundp sym) (symbol-value sym))))
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(if definition
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(let ((result '())
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(start 0))
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(while start
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(let ((end (string-match "[ \t\n]*,[, \t\n]*" definition start)))
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(setq result (cons (substring definition start end) result)
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start (and end (match-end 0)))))
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(setq definition
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(mapconcat (function (lambda (x)
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(or (mail-resolve-all-aliases-1
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(intern-soft x mail-aliases)
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(cons sym so-far))
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x)))
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(nreverse result)
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mail-alias-separator-string))
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(set sym definition))))
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(symbol-value sym))
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(defun mail-abbrev-expand-hook ()
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"For use as the fourth arg to define-abbrev.
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After expanding a mail-abbrev, if fill-mode is on and we're past the
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fill-column, break the line at the previous comma, and indent the next
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line."
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(save-excursion
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(let ((p (point))
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bol comma fp)
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(beginning-of-line)
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(setq bol (point))
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(goto-char p)
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(while (and auto-fill-function
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(>= (current-column) fill-column)
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(search-backward "," bol t))
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(setq comma (point))
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(forward-char 1) ; Now we are just past the comma.
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(insert "\n")
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(delete-horizontal-space)
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(setq p (point))
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(indent-relative)
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(setq fp (buffer-substring p (point)))
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;; Go to the end of the new line.
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(end-of-line)
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(if (> (current-column) fill-column)
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;; It's still too long; do normal auto-fill.
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(let ((fill-prefix (or fp "\t")))
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(do-auto-fill)))
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;; Resume the search.
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(goto-char comma)
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))))
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;;; Syntax tables and abbrev-expansion
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(defvar mail-abbrev-mode-regexp "^\\(Resent-\\)?\\(To\\|From\\|CC\\|BCC\\):"
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"*Regexp to select mail-headers in which mail-aliases should be expanded.
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This string it will be handed to `looking-at' with the point at the beginning
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of the current line; if it matches, abbrev mode will be turned on, otherwise
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it will be turned off. (You don't need to worry about continuation lines.)
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This should be set to match those mail fields in which you want abbreviations
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turned on.")
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(defvar mail-mode-syntax-table (copy-syntax-table text-mode-syntax-table)
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"The syntax table which is used in send-mail mode message bodies.")
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(defvar mail-mode-header-syntax-table
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(let ((tab (copy-syntax-table text-mode-syntax-table)))
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;; This makes the characters "@%!._-" be considered symbol-consituents
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;; but not word-constituents, so forward-sexp will move you over an
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;; entire address, but forward-word will only move you over a sequence
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;; of alphanumerics. (Clearly the right thing.)
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(modify-syntax-entry ?@ "_" tab)
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(modify-syntax-entry ?% "_" tab)
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(modify-syntax-entry ?! "_" tab)
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(modify-syntax-entry ?. "_" tab)
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(modify-syntax-entry ?_ "_" tab)
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(modify-syntax-entry ?- "_" tab)
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(modify-syntax-entry ?< "(>" tab)
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(modify-syntax-entry ?> ")<" tab)
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tab)
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"The syntax table used in send-mail mode when in a mail-address header.
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mail-mode-syntax-table is used when the cursor is in the message body or in
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non-address headers.")
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(defvar mail-abbrev-syntax-table
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(let* ((tab (copy-syntax-table mail-mode-header-syntax-table))
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(i (1- (length tab)))
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(_ (aref (standard-syntax-table) ?_))
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(w (aref (standard-syntax-table) ?w)))
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(while (>= i 0)
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(if (= (aref tab i) _) (aset tab i w))
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(setq i (1- i)))
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tab)
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"The syntax-table used for abbrev-expansion purposes; this is not actually
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made the current syntax table of the buffer, but simply controls the set of
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characters which may be a part of the name of a mail-alias.")
|
||
|
||
|
||
(defun mail-abbrev-in-expansion-header-p ()
|
||
"Whether point is in a mail-address header field."
|
||
(let ((case-fold-search t))
|
||
(and ;;
|
||
;; we are on an appropriate header line...
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
;; skip backwards over continuation lines.
|
||
(while (and (looking-at "^[ \t]")
|
||
(not (= (point) (point-min))))
|
||
(forward-line -1))
|
||
;; are we at the front of an appropriate header line?
|
||
(looking-at mail-abbrev-mode-regexp))
|
||
;;
|
||
;; ...and we are before the mail-header-separator
|
||
(< (point)
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(search-forward (concat "\n" mail-header-separator "\n")
|
||
nil 0)
|
||
(point))))))
|
||
|
||
(defvar mail-mode-abbrev-table) ; quiet the compiler
|
||
|
||
(defun sendmail-pre-abbrev-expand-hook ()
|
||
(if mail-abbrev-aliases-need-to-be-resolved
|
||
(mail-resolve-all-aliases))
|
||
(if (and mail-aliases (not (eq mail-aliases t)))
|
||
(if (not (mail-abbrev-in-expansion-header-p))
|
||
;;
|
||
;; If we're not in a mail header in which mail aliases should
|
||
;; be expanded, then use the normal mail-mode abbrev table (if any)
|
||
;; and the normal mail-mode syntax table.
|
||
;;
|
||
(progn
|
||
(setq local-abbrev-table (and (boundp 'mail-mode-abbrev-table)
|
||
mail-mode-abbrev-table))
|
||
(set-syntax-table mail-mode-syntax-table))
|
||
;;
|
||
;; Otherwise, we are in a To: (or CC:, or whatever) header, and
|
||
;; should use word-abbrevs to expand mail aliases.
|
||
;; - First, install the mail-aliases as the word-abbrev table.
|
||
;; - Then install the mail-abbrev-syntax-table, which temporarily
|
||
;; marks all of the non-alphanumeric-atom-characters (the "_"
|
||
;; syntax ones) as being normal word-syntax. We do this because
|
||
;; the C code for expand-abbrev only works on words, and we want
|
||
;; these characters to be considered words for the purpose of
|
||
;; abbrev expansion.
|
||
;; - Then we call expand-abbrev again, recursively, to do the abbrev
|
||
;; expansion with the above syntax table.
|
||
;; - Then we do a trick which tells the expand-abbrev frame which
|
||
;; invoked us to not continue (and thus not expand twice.)
|
||
;; This means that any abbrev expansion will happen as a result
|
||
;; of this function's call to expand-abbrev, and not as a result
|
||
;; of the call to expand-abbrev which invoked *us*.
|
||
;; - Then we set the syntax table to mail-mode-header-syntax-table,
|
||
;; which doesn't have anything to do with abbrev expansion, but
|
||
;; is just for the user's convenience (see its doc string.)
|
||
;;
|
||
(setq local-abbrev-table mail-aliases)
|
||
;; If the character just typed was non-alpha-symbol-syntax, then don't
|
||
;; expand the abbrev now (that is, don't expand when the user types -.)
|
||
;; Check the character's syntax in the mail-mode-header-syntax-table.
|
||
(set-syntax-table mail-mode-header-syntax-table)
|
||
(or (eq (char-syntax last-command-char) ?_)
|
||
(let ((pre-abbrev-expand-hook nil)) ; That's us; don't loop.
|
||
;; Use this table so that abbrevs can have hyphens in them.
|
||
(set-syntax-table mail-abbrev-syntax-table)
|
||
(expand-abbrev)
|
||
;; Now set it back to what it was before.
|
||
(set-syntax-table mail-mode-header-syntax-table)))
|
||
(setq abbrev-start-location (point) ; This is the trick.
|
||
abbrev-start-location-buffer (current-buffer))
|
||
)))
|
||
|
||
;;; utilities
|
||
|
||
(defun merge-mail-aliases (file)
|
||
"Merge mail aliases from the given file with existing ones."
|
||
(interactive (list
|
||
(let ((insert-default-directory t)
|
||
(default-directory (expand-file-name "~/"))
|
||
(def (mail-abbrev-mailrc-file)))
|
||
(read-file-name
|
||
(format "Read additional aliases from file: (default %s) "
|
||
def)
|
||
default-directory
|
||
(expand-file-name def default-directory)
|
||
t))))
|
||
(build-mail-aliases file))
|
||
|
||
(defun rebuild-mail-aliases (file)
|
||
"Rebuild all the mail aliases from the given file."
|
||
(interactive (list
|
||
(let ((insert-default-directory t)
|
||
(default-directory (expand-file-name "~/"))
|
||
(def (mail-abbrev-mailrc-file)))
|
||
(read-file-name
|
||
(format "Read mail aliases from file: (default %s) " def)
|
||
default-directory
|
||
(expand-file-name def default-directory)
|
||
t))))
|
||
(setq mail-aliases nil)
|
||
(build-mail-aliases file))
|
||
|
||
(defun mail-interactive-insert-alias (&optional alias)
|
||
"Prompt for and insert a mail alias."
|
||
(interactive (list (completing-read "Expand alias: " mail-aliases nil t)))
|
||
(insert (or (and alias (symbol-value (intern-soft alias mail-aliases))) "")))
|
||
|
||
(defun abbrev-hacking-next-line (&optional arg)
|
||
"Just like `next-line' (\\[next-line]) but expands abbrevs when at \
|
||
end of line."
|
||
(interactive "p")
|
||
(if (looking-at "[ \t]*\n") (expand-abbrev))
|
||
(setq this-command 'next-line)
|
||
(next-line arg))
|
||
|
||
(defun abbrev-hacking-end-of-buffer (&optional arg)
|
||
"Just like `end-of-buffer' (\\[end-of-buffer]) but expands abbrevs when at \
|
||
end of line."
|
||
(interactive "P")
|
||
(if (looking-at "[ \t]*\n") (expand-abbrev))
|
||
(setq this-command 'end-of-buffer)
|
||
(end-of-buffer arg))
|
||
|
||
(define-key mail-mode-map "\C-c\C-a" 'mail-interactive-insert-alias)
|
||
|
||
;;(define-key mail-mode-map "\C-n" 'abbrev-hacking-next-line)
|
||
;;(define-key mail-mode-map "\M->" 'abbrev-hacking-end-of-buffer)
|
||
|
||
(provide 'mail-abbrevs)
|
||
|
||
|
||
;;; V18 compatibility
|
||
;;;
|
||
;;; All of the Emacs18 stuff is isolated down here so that it will be
|
||
;;; easy to delete once v18 finally bites the dust.
|
||
;;;
|
||
;;; These defuns and defvars aren't inside the cond in deference to
|
||
;;; the intense brokenness of the v18 byte-compiler.
|
||
;;;
|
||
;;; All the code on this page is gross and hidious and awful and might
|
||
;;; not even work all that well. Comfort yourself with knowing that the
|
||
;;; v19 code above works wonderfully.
|
||
|
||
(defun sendmail-v18-self-insert-command (arg)
|
||
"Just like self-insert-command, but runs sendmail-pre-abbrev-expand-hook."
|
||
(interactive "p")
|
||
(if (not (eq (char-syntax last-command-char) ?w))
|
||
(progn
|
||
(sendmail-pre-abbrev-expand-hook)
|
||
;; Unhack expand-abbrev, so it will work right next time around.
|
||
(setq abbrev-start-location nil)))
|
||
;; this is gross and wasteful.
|
||
(let ((abbrev-mode (if (mail-abbrev-in-expansion-header-p)
|
||
nil
|
||
abbrev-mode)))
|
||
(self-insert-command arg)))
|
||
|
||
(defun abbrev-hacking-next-line-v18 (arg)
|
||
(if (looking-at "[ \t]*\n") (sendmail-pre-abbrev-expand-hook))
|
||
(setq this-command 'next-line)
|
||
(next-line arg))
|
||
|
||
(defun abbrev-hacking-end-of-buffer-v18 (arg)
|
||
(if (looking-at "[ \t]*\n") (sendmail-pre-abbrev-expand-hook))
|
||
(setq this-command 'end-of-buffer)
|
||
(end-of-buffer arg))
|
||
|
||
(defvar mail-abbrevs-v18-map-munged nil)
|
||
|
||
(defun mail-abbrevs-v18-munge-map ()
|
||
;; For every key that is bound to self-insert-command in global-map,
|
||
;; bind that key to sendmail-self-insert-command in mail-mode-map.
|
||
;; We used to do this by making the mail-mode-map be a non-sparse map,
|
||
;; but that made the esc-map be shared in such a way that making a
|
||
;; local meta binding in the mail-mode-map made a *global* binding
|
||
;; instead. Yucko.
|
||
(let ((global-map (current-global-map))
|
||
new-bindings
|
||
(i 0))
|
||
(while (< i 128)
|
||
(if (eq 'self-insert-command (or (cdr (assq i mail-mode-map))
|
||
(aref global-map i)))
|
||
(setq new-bindings
|
||
(cons (cons i 'sendmail-v18-self-insert-command)
|
||
new-bindings)))
|
||
(setq i (1+ i)))
|
||
(setq mail-mode-map
|
||
(nconc (copy-keymap mail-mode-map) (nreverse new-bindings))))
|
||
(setq mail-abbrevs-v18-map-munged t))
|
||
|
||
(defun mail-aliases-setup-v18 ()
|
||
"Put this on `mail-setup-hook' to use mail-abbrevs."
|
||
(if (not (eq major-mode 'mail-mode))
|
||
nil
|
||
(or (and mail-mode-map (eq (current-local-map) mail-mode-map))
|
||
(error "shut 'er down clancy, she's suckin' mud"))
|
||
(if (and (not (vectorp mail-aliases))
|
||
(file-exists-p (mail-abbrev-mailrc-file)))
|
||
(build-mail-aliases))
|
||
(or mail-abbrevs-v18-map-munged (mail-abbrevs-v18-munge-map))
|
||
(use-local-map mail-mode-map)
|
||
(abbrev-mode 1)))
|
||
|
||
|
||
(cond ((or (string-match "^18\\." emacs-version)
|
||
(and (boundp 'epoch::version) epoch::version))
|
||
;;
|
||
;; v19 (and this code) uses a new name for this function.
|
||
(or (fboundp 'buffer-disable-undo)
|
||
(fset 'buffer-disable-undo 'buffer-flush-undo))
|
||
;;
|
||
;; v19 (and this code) uses a new name for auto-fill-hook (-function).
|
||
;; Encapsulate the function that uses it to bind the new name.
|
||
(or (fboundp 'mail-abbrev-expand-hook-v19)
|
||
(fset 'mail-abbrev-expand-hook-v19
|
||
(symbol-function 'mail-abbrev-expand-hook)))
|
||
(fset 'mail-abbrev-expand-hook
|
||
(function (lambda ()
|
||
(let ((auto-fill-function auto-fill-hook))
|
||
(mail-abbrev-expand-hook-v19)))))
|
||
;;
|
||
;; Turn off the broken v18 code (that is still called from sendmail.el)
|
||
(fset 'expand-mail-aliases
|
||
(function (lambda (&rest args)
|
||
"Obsoleted by mail-abbrevs. Does nothing."
|
||
nil)))
|
||
;;
|
||
;; Redefine the abbrev-hacking functions. Yuck.
|
||
(fset 'abbrev-hacking-next-line
|
||
(function (lambda (p) (interactive "p")
|
||
(abbrev-hacking-next-line-v18 p))))
|
||
(fset 'abbrev-hacking-end-of-buffer
|
||
(function (lambda (p) (interactive "P")
|
||
(abbrev-hacking-end-of-buffer-v18 p))))
|
||
;;
|
||
;; Encapsulate mail-setup to do the necessary buffer initializations.
|
||
(or (fboundp 'mail-setup-v18)
|
||
(fset 'mail-setup-v18 (symbol-function 'mail-setup)))
|
||
(fset 'mail-setup
|
||
(function (lambda (&rest args)
|
||
(mail-aliases-setup-v18)
|
||
(apply 'mail-setup-v18 args))))
|
||
|
||
;;
|
||
;; Encapsulate VM's version of mail-setup as well, if vm-mail is
|
||
;; defined as a function or as an autoload.
|
||
(cond ((and (fboundp 'vm-mail)
|
||
(if (eq 'autoload (car-safe (symbol-function 'vm-mail)))
|
||
(load (nth 1 (symbol-function 'vm-mail)) t)
|
||
t))
|
||
(or (fboundp 'vm-mail-internal-v18)
|
||
(fset 'vm-mail-internal-v18
|
||
(symbol-function 'vm-mail-internal)))
|
||
(fset 'vm-mail-internal
|
||
(function (lambda (&rest args)
|
||
(mail-aliases-setup-v18)
|
||
(apply 'vm-mail-internal-v18 args))))))
|
||
|
||
;; If we're being loaded from mail-setup-hook or mail-mode-hook
|
||
;; as run from inside mail-setup or vm-mail-internal, then install
|
||
;; right now.
|
||
(if (eq major-mode 'mail-mode)
|
||
(mail-aliases-setup-v18))
|
||
)
|
||
|
||
(t ; v19
|
||
(fmakunbound 'expand-mail-aliases)))
|