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1377 lines
49 KiB
EmacsLisp
1377 lines
49 KiB
EmacsLisp
;;; mh-utils.el --- mh-e code needed for both sending and reading
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;; Copyright (C) 1993, 1995, 1997, 2000, 2001, 2002 Free Software Foundation, Inc.
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;; Author: Bill Wohler <wohler@newt.com>
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;; Maintainer: Bill Wohler <wohler@newt.com>
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;; Keywords: mail
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;; See: mh-e.el
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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 the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Internal support for mh-e package.
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;;; Change Log:
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;; $Id: mh-utils.el,v 1.79 2002/04/07 19:20:56 wohler Exp $
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;;; Code:
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(load "executable" t t) ; Non-fatal dependency on
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; executable-find
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;;; Autoload mh-seq
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(autoload 'mh-add-to-sequence "mh-seq")
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(autoload 'mh-notate-seq "mh-seq")
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(autoload 'mh-read-seq-default "mh-seq")
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(autoload 'mh-map-to-seq-msgs "mh-seq")
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;;; Other Autoloads
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(autoload 'mail-header-end "sendmail")
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;;; Set for local environment:
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;;; mh-progs and mh-lib used to be set in paths.el, which tried to
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;;; figure out at build time which of several possible directories MH
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;;; was installed into. But if you installed MH after building Emacs,
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;;; this would almost certainly be wrong, so now we do it at run time.
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(defvar mh-progs nil
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"Directory containing MH commands, such as inc, repl, and rmm.")
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(defvar mh-lib nil
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"Directory containing the MH library.
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This directory contains, among other things,
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the components file.")
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(defvar mh-lib-progs nil
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"Directory containing MH helper programs.
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This directory contains, among other things,
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the mhl program.")
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(defvar mh-nmh-p nil
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"Non-nil if nmh is installed on this system instead of MH.")
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;;;###autoload
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(put 'mh-progs 'risky-local-variable t)
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;;;###autoload
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(put 'mh-lib 'risky-local-variable t)
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;;;###autoload
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(put 'mh-lib-progs 'risky-local-variable t)
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;;;###autoload
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(put 'mh-nmh-p 'risky-local-variable t)
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;;; User preferences:
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(defgroup mh-buffer nil
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"Layout of MH-E buffers"
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:prefix "mh-"
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:group 'mh)
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(defcustom mh-auto-folder-collect t
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"*Whether to start collecting MH folder names immediately in the background.
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Non-nil means start a background process collecting the names of all
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folders as soon as mh-e is loaded."
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:type 'boolean
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:group 'mh)
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(defcustom mh-recursive-folders nil
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"*If non-nil, then commands which operate on folders do so recursively."
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:type 'boolean
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:group 'mh)
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(defcustom mh-clean-message-header t
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"*Non-nil means clean headers of messages that are displayed or inserted.
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The variables `mh-visible-headers' and `mh-invisible-headers' control what
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is removed."
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:type 'boolean
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:group 'mh-buffer)
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(defcustom mh-visible-headers nil
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"*If non-nil, contains a regexp specifying the headers to keep when cleaning.
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Only used if `mh-clean-message-header' is non-nil. Setting this variable
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overrides `mh-invisible-headers'."
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:type '(choice (const nil) regexp)
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:group 'mh-buffer)
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(defvar mh-invisible-headers
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(concat
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"^"
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(let ((max-specpdl-size 1000)) ;workaround for insufficient default
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(regexp-opt
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'( ;; RFC 822
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"Received: " "Message-Id: " "Return-Path: "
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;; RFC 2045
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"Mime-Version" "Content-"
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;; sendmail
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"X-Authentication-Warning: " "X-MIME-Autoconverted: " "From "
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"Status: "
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;; X400
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"X400-" "P1-Message-Id: " "Original-Encoded-Information-Types: "
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"P1-Recipient: " "P1-Content-Type: " "Ua-Content-Id: "
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;; MH
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"Resent" "Prev-Resent" "Forwarded: " "Replied: " "Delivery-Date: "
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"In-Reply-To: " "Remailed-" "Via: " "Mail-from: "
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;; gnus
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"X-Gnus-Mail-Source: "
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;; MS Outlook
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"X-Priority: " "X-Msmail-" "X-MimeOLE: " "X-Apparently-From: "
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"Importance: " "Sensitivity: " "X-MS-TNEF-Correlator: "
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;; Juno
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"X-Juno-"
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;; Hotmail
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"X-OriginalArrivalTime: " "X-Originating-IP: "
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;; Netscape/Mozilla
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"X-Accept-Language: " "X-Mozilla-Status: "
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;; NTMail
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"X-Info: " "X-VSMLoop: "
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;; News
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"NNTP-" "X-News: "
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;; Mailman mailing list manager
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"List-" "X-Beenthere: " "X-Mailman-Version: "
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;; Egroups/yahoogroups mailing list manager
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"X-eGroups-" "X-Apparently-To: " "Mailing-List: " "Delivered-To: "
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;; SourceForge mailing list manager
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"X-Original-Date: "
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;; Unknown mailing list managers
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"X-Mailing-List: " "X-Loop: "
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"List-Subscribe: " "List-Unsubscribe: "
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"X-List-Subscribe: " "X-List-Unsubscribe: "
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"X-Listserver: " "List-" "X-List-Host: "
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;; Sieve filtering
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"X-Sieve: "
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;; Worldtalk gateways
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"X-Wss-Id: "
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;; User added
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"X-Face: " "X-Qotd-"
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;; Miscellaneous
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"X-Sender: " "X-Ack: " "Errors-To: " "Precedence: " "X-Message-Id"
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"X-From-Line" "X-Cron-Env: " "Delivery: " "X-Delivered"
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"X-Received: " "X-Vms-To: " "Xref: " "X-Request-" "X-UIDL: "
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"X-Orcl-Content-Type: " "X-Server-Uuid: " "X-Envelope-Sender: "
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"X-Envelope-To: " "Encoding: " "Old-Return-Path: " "Path: "
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"References: " "Lines: " "Autoforwarded: " "Bestservhost: "
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"X-pgp: " "X-Accept-Language: " "Priority: " "User-Agent: "
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"X-MIMETrack: " "X-Abuse-Info: " "X-Complaints-To: "
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"X-No-Archive: " "X-Original-Complaints-To: "
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"X-Original-Trace: " "X-Received-Date: " "X-Server-Date: "
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"X-Trace: " "X-UserInfo1: " "X-submission-address: ")
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t)))
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"*Regexp matching lines in a message header that are not to be shown.
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If `mh-visible-headers' is non-nil, it is used instead to specify what
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to keep.")
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;;; Additional header fields that might someday be added:
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;;; "Sender: " "Reply-to: "
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(defcustom mh-bury-show-buffer t
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"*Non-nil means that the displayed show buffer for a folder is buried."
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:type 'boolean
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:group 'mh-buffer)
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(defcustom mh-summary-height (or (and (fboundp 'frame-height)
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(> (frame-height) 24)
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(min 10 (/ (frame-height) 6)))
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4)
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"*Number of lines in MH-Folder window (including the mode line)."
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:type 'integer
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:group 'mh-buffer)
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;; Use goto-addr if it was already loaded (which probably sets this
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;; variable to t), or if this variable is otherwise set to t.
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(defcustom mh-show-use-goto-addr (and (boundp 'goto-address-highlight-p)
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goto-address-highlight-p)
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"*Non-nil means URLs and e-mail addresses are highlighted using goto-addr while in mh-show-mode."
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:type 'boolean
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:group 'mh-buffer)
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(defvar mh-scan-msg-number-regexp "^ *\\([0-9]+\\)"
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"Regexp to find the number of a message in a scan line.
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The message's number must be surrounded with \\( \\)")
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(defvar mh-scan-msg-search-regexp "^[^0-9]*%d[^0-9]"
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"Format string containing a regexp matching the scan listing for a message.
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The desired message's number will be an argument to format.")
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(defcustom mhl-formfile nil
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"*Name of format file to be used by mhl to show and print messages.
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A value of T means use the default format file.
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Nil means don't use mhl to format messages when showing; mhl is still used,
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with the default format file, to format messages when printing them.
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The format used should specify a non-zero value for overflowoffset so
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the message continues to conform to RFC 822 and mh-e can parse the headers."
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:type '(choice (const nil) (const t) string)
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:group 'mh)
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(put 'mhl-formfile 'info-file "mh-e")
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(defvar mh-decode-quoted-printable-have-mimedecode
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(not (null (and (fboundp 'executable-find)(executable-find "mimedecode"))))
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"Whether the mimedecode command is installed on the system.
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This sets the default value of variable `mh-decode-quoted-printable' to
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determine whether quoted-printable MIME parts are decode when viewed in
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`mh-show'. The source code for mimedecode can be obtained from
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http://www.freesoft.org/CIE/FAQ/mimedeco.c")
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(defcustom mh-decode-quoted-printable
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mh-decode-quoted-printable-have-mimedecode
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"Whether to decode quoted-printable MIME parts in `mh-show'.
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This can only be done if the 'mimedecode' command is available in the
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executable path on the system (the mh-decode-quoted-printable-have-mimedecode
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variable is set if the command was found). That program is used as a helper
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program to achieve this. The source code for mimedecode can usually be
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obtained from http://www.freesoft.org/CIE/FAQ/mimedeco.c"
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:type 'boolean
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:group 'mh-buffer)
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(defcustom mh-update-sequences-after-mh-show t
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"Whether to call `mh-update-sequence' in `mh-show-mode'.
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If set, `mh-update-sequence' is run every time a message is shown, telling
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MH or nmh that this is your current message. It's useful, for example, to
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display MIME content using \"M-! mhshow RET\""
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:type 'boolean
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:group 'mh-buffer)
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(defcustom mh-highlight-citation-p 'gnus
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"How to highlight citations in show buffers.
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The gnus method uses a different color for each indentation."
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:type '(choice (const :tag "Use gnus" gnus)
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(const :tag "Use font-lock" font-lock)
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(const :tag "Don't fontify" nil))
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:group 'mh-buffer)
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(defvar mh-default-folder-for-message-function nil
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"Function to select a default folder for refiling or Fcc.
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If set to a function, that function is called with no arguments by
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`\\[mh-refile-msg]' and `\\[mh-to-fcc]' to get a default when
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prompting the user for a folder. The function is called from within a
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`save-excursion', with point at the start of the message. It should
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return the folder to offer as the refile or Fcc folder, as a string
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with a leading `+' sign. It can also return an empty string to use no
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default, or NIL to calculate the default the usual way.
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NOTE: This variable is not an ordinary hook;
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It may not be a list of functions.")
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(defvar mh-find-path-hook nil
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"Invoked by `mh-find-path' while reading the user's MH profile.")
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(defvar mh-folder-list-change-hook nil
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"Invoked whenever the cached folder list `mh-folder-list' is changed.")
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(defvar mh-show-buffer-mode-line-buffer-id "{show-%s} %d"
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"Format string to produce `mode-line-buffer-identification' for show buffers.
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First argument is folder name. Second is message number.")
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(defvar mh-cmd-note 4
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"Offset to insert notation.")
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(defvar mh-note-seq "%"
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"String whose first character is used to notate messages in a sequence.")
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(defvar mh-mail-header-separator "--------"
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"*Line used by MH to separate headers from text in messages being composed.
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This variable should not be used directly in programs. Programs should use
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`mail-header-separator' instead. `mail-header-separator' is initialized to
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`mh-mail-header-separator' in `mh-letter-mode'; in other contexts, you may
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have to perform this initialization yourself.
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Do not make this a regexp as it may be the argument to `insert' and it is
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passed through `regexp-quote' before being used by functions like
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`re-search-forward'.")
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(defun mh-in-header-p ()
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;; Return non-nil if the point is in the header of a draft message.
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(< (point) (mail-header-end)))
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(defun mh-header-field-end ()
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;; Move to the end of the current header field.
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;; Handles RFC 822 continuation lines.
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(forward-line 1)
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(while (looking-at "^[ \t]")
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(forward-line 1))
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(backward-char 1)) ;to end of previous line
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(defun mh-letter-header-font-lock (limit)
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"Return the entire mail header to font-lock.
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Argument LIMIT limits search."
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(if (= (point) limit)
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nil
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(let* ((mail-header-end (save-match-data (mail-header-end)))
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(lesser-limit (if (< mail-header-end limit) mail-header-end limit)))
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(when (mh-in-header-p)
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(set-match-data (list 1 lesser-limit))
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(goto-char lesser-limit)
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t))))
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(defun mh-header-field-font-lock (field limit)
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"Return the value of a header field FIELD to font-lock.
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Argument LIMIT limits search."
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(if (= (point) limit)
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nil
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(let* ((mail-header-end (mail-header-end))
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(lesser-limit (if (< mail-header-end limit) mail-header-end limit))
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(case-fold-search t))
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(when (and (< (point) mail-header-end) ;Only within header
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(re-search-forward (format "^%s" field) lesser-limit t))
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(let ((match-one-b (match-beginning 0))
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(match-one-e (match-end 0)))
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(mh-header-field-end)
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(if (> (point) limit) ;Don't search for end beyond limit
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(goto-char limit))
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(set-match-data (list match-one-b match-one-e
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(1+ match-one-e) (point)))
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t)))))
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(defun mh-header-to-font-lock (limit)
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(mh-header-field-font-lock "To:" limit))
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(defun mh-header-cc-font-lock (limit)
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(mh-header-field-font-lock "cc:" limit))
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(defun mh-header-subject-font-lock (limit)
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(mh-header-field-font-lock "Subject:" limit))
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(defvar mh-show-to-face 'mh-show-to-face
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"Face for highlighting the To: header field.")
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(if (boundp 'facemenu-unlisted-faces)
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(add-to-list 'facemenu-unlisted-faces "^mh-show"))
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(defface mh-show-to-face
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'((((class grayscale) (background light))
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(:foreground "DimGray" :underline t))
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(((class grayscale) (background dark))
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(:foreground "LightGray" :underline t))
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(((class color) (background light)) (:foreground "SaddleBrown"))
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(((class color) (background dark)) (:foreground "burlywood"))
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(t (:underline t)))
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"Face for highlighting the To: header field."
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:group 'mh-buffer)
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(defvar mh-show-from-face 'mh-show-from-face
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"Face for highlighting the From: header field.")
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(defface mh-show-from-face
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'((((class color) (background light))
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(:foreground "red3"))
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(((class color) (background dark))
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(:foreground "cyan"))
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(t
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(:bold t)))
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"Face for highlighting the From: header field."
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:group 'mh-buffer)
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(defvar mh-folder-subject-face 'mh-folder-subject-face
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"Face for highlighting subject text in MH-Folder buffers.")
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(if (boundp 'facemenu-unlisted-faces)
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(add-to-list 'facemenu-unlisted-faces "^mh-folder"))
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(defface mh-folder-subject-face
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'((((class color) (background light))
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(:foreground "blue4"))
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(((class color) (background dark))
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(:foreground "yellow"))
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(t
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(:bold t)))
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"Face for highlighting subject text in MH-Folder buffers."
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:group 'mh)
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(defvar mh-show-subject-face 'mh-show-subject-face
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"Face for highlighting the Subject header field.")
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(copy-face 'mh-folder-subject-face 'mh-show-subject-face)
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(eval-after-load "font-lock"
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'(progn
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(defvar mh-show-cc-face 'mh-show-cc-face
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"Face for highlighting cc header fields.")
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(copy-face 'font-lock-variable-name-face 'mh-show-cc-face)
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(defvar mh-show-date-face 'mh-show-date-face
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"Face for highlighting the Date header field.")
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(copy-face 'font-lock-type-face 'mh-show-date-face)
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(defvar mh-show-header-face 'mh-show-header-face
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"Face used to deemphasize unspecified header fields.")
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(copy-face 'font-lock-string-face 'mh-show-header-face)
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(defvar mh-show-font-lock-keywords
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'(("^\\(From:\\|Sender:\\)\\(.*\\)"
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(1 'default) (2 mh-show-from-face))
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(mh-header-to-font-lock
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(0 'default) (1 mh-show-to-face))
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(mh-header-cc-font-lock
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(0 'default) (1 mh-show-cc-face))
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("^\\(Reply-To:\\|Return-Path:\\)\\(.*\\)$"
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(1 'default) (2 mh-show-from-face))
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(mh-header-subject-font-lock
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(0 'default) (1 mh-show-subject-face))
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("^\\(Apparently-To:\\|Newsgroups:\\)\\(.*\\)"
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(1 'default) (2 mh-show-cc-face))
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("^\\(In-reply-to\\|Date\\):\\(.*\\)$"
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(1 'default) (2 mh-show-date-face))
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(mh-letter-header-font-lock (0 mh-show-header-face append t)))
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"Additional expressions to highlight in MH-show mode.")
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(defvar mh-show-font-lock-keywords-with-cite
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(eval-when-compile
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(let* ((cite-chars "[>|}]")
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(cite-prefix "A-Za-z")
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(cite-suffix (concat cite-prefix "0-9_.@-`'\"")))
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(append
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mh-show-font-lock-keywords
|
|
(list
|
|
;; Use MATCH-ANCHORED to effectively anchor the regexp left side.
|
|
`(,cite-chars
|
|
(,(concat "\\=[ \t]*"
|
|
"\\(\\([" cite-prefix "]+[" cite-suffix "]*\\)?"
|
|
"\\(" cite-chars "[ \t]*\\)\\)+"
|
|
"\\(.*\\)")
|
|
(beginning-of-line) (end-of-line)
|
|
(2 font-lock-constant-face nil t)
|
|
(4 font-lock-comment-face nil t)))))))
|
|
"Additional expressions to highlight in MH-show mode.")
|
|
))
|
|
|
|
(defun mh-gnus-article-highlight-citation ()
|
|
"Highlight cited text in current buffer using gnus."
|
|
(interactive)
|
|
(require 'gnus-cite)
|
|
(let ((modified (buffer-modified-p))
|
|
(gnus-article-buffer (buffer-name))
|
|
(gnus-cite-face-list
|
|
'(gnus-cite-face-2 gnus-cite-face-3 gnus-cite-face-4 gnus-cite-face-5
|
|
gnus-cite-face-6 gnus-cite-face-7 gnus-cite-face-8 gnus-cite-face-9
|
|
gnus-cite-face-10 gnus-cite-face-11 gnus-cite-face-1)))
|
|
(gnus-article-highlight-citation t)
|
|
(set-buffer-modified-p modified)))
|
|
|
|
;;; Internal bookkeeping variables:
|
|
|
|
;; The value of `mh-folder-list-change-hook' is called whenever
|
|
;; mh-folder-list variable is set.
|
|
;; List of folder names for completion.
|
|
(defvar mh-folder-list nil)
|
|
|
|
;; Cached value of the `Path:' component in the user's MH profile.
|
|
;; User's mail folder directory.
|
|
(defvar mh-user-path nil)
|
|
|
|
;; An mh-draft-folder of NIL means do not use a draft folder.
|
|
;; Cached value of the `Draft-Folder:' component in the user's MH profile.
|
|
;; Name of folder containing draft messages.
|
|
(defvar mh-draft-folder nil)
|
|
|
|
;; Cached value of the `Unseen-Sequence:' component in the user's MH profile.
|
|
;; Name of the Unseen sequence.
|
|
(defvar mh-unseen-seq nil)
|
|
|
|
;; Cached value of the `Previous-Sequence:' component in the user's MH
|
|
;; profile.
|
|
;; Name of the Previous sequence.
|
|
(defvar mh-previous-seq nil)
|
|
|
|
;; Cached value of the `Inbox:' component in the user's MH profile,
|
|
;; or "+inbox" if no such component.
|
|
;; Name of the Inbox folder.
|
|
(defvar mh-inbox nil)
|
|
|
|
;; Name of mh-e scratch buffer.
|
|
(defconst mh-temp-buffer " *mh-temp*")
|
|
|
|
;; Name of the mh-e folder list buffer.
|
|
(defconst mh-temp-folders-buffer "*Folders*")
|
|
|
|
;; Name of the mh-e sequences list buffer.
|
|
(defconst mh-temp-sequences-buffer "*Sequences*")
|
|
|
|
;; Window configuration before mh-e command.
|
|
(defvar mh-previous-window-config nil)
|
|
|
|
;;Non-nil means next SPC or whatever goes to next undeleted message.
|
|
(defvar mh-page-to-next-msg-p nil)
|
|
|
|
;;; Internal variables local to a folder.
|
|
|
|
;; Name of current folder, a string.
|
|
(defvar mh-current-folder nil)
|
|
|
|
;; Buffer that displays message for this folder.
|
|
(defvar mh-show-buffer nil)
|
|
|
|
;; Full path of directory for this folder.
|
|
(defvar mh-folder-filename nil)
|
|
|
|
;;Number of msgs in buffer.
|
|
(defvar mh-msg-count nil)
|
|
|
|
;; If non-nil, show the message in a separate window.
|
|
(defvar mh-showing-mode nil)
|
|
|
|
;;; This holds a documentation string used by describe-mode.
|
|
(defun mh-showing-mode (&optional arg)
|
|
"Change whether messages should be displayed.
|
|
With arg, display messages iff ARG is positive."
|
|
(setq mh-showing-mode
|
|
(if (null arg)
|
|
(not mh-showing-mode)
|
|
(> (prefix-numeric-value arg) 0))))
|
|
|
|
;; The sequences of this folder. An alist of (seq . msgs).
|
|
(defvar mh-seq-list nil)
|
|
|
|
;; List of displayed messages to be removed from the Unseen sequence.
|
|
(defvar mh-seen-list nil)
|
|
|
|
;; If non-nil, show buffer contains message with all headers.
|
|
;; If nil, show buffer contains message processed normally.
|
|
;; Showing message with headers or normally.
|
|
(defvar mh-showing-with-headers nil)
|
|
|
|
|
|
;;; mh-e macros
|
|
|
|
(defmacro with-mh-folder-updating (save-modification-flag-p &rest body)
|
|
;; Format is (with-mh-folder-updating (SAVE-MODIFICATION-FLAG-P) &body BODY).
|
|
;; Execute BODY, which can modify the folder buffer without having to
|
|
;; worry about file locking or the read-only flag, and return its result.
|
|
;; If SAVE-MODIFICATION-FLAG-P is non-nil, the buffer's modification
|
|
;; flag is unchanged, otherwise it is cleared.
|
|
(setq save-modification-flag-p (car save-modification-flag-p)) ; CL style
|
|
`(prog1
|
|
(let ((mh-folder-updating-mod-flag (buffer-modified-p))
|
|
(buffer-read-only nil)
|
|
(buffer-file-name nil)) ;don't let the buffer get locked
|
|
(prog1
|
|
(progn
|
|
,@body)
|
|
(mh-set-folder-modified-p mh-folder-updating-mod-flag)))
|
|
,@(if (not save-modification-flag-p)
|
|
'((mh-set-folder-modified-p nil)))))
|
|
|
|
(put 'with-mh-folder-updating 'lisp-indent-hook 1)
|
|
|
|
(defmacro mh-in-show-buffer (show-buffer &rest body)
|
|
;; Format is (mh-in-show-buffer (SHOW-BUFFER) &body BODY).
|
|
;; Display buffer SHOW-BUFFER in other window and execute BODY in it.
|
|
;; Stronger than save-excursion, weaker than save-window-excursion.
|
|
(setq show-buffer (car show-buffer)) ; CL style
|
|
`(let ((mh-in-show-buffer-saved-window (selected-window)))
|
|
(switch-to-buffer-other-window ,show-buffer)
|
|
(if mh-bury-show-buffer (bury-buffer (current-buffer)))
|
|
(unwind-protect
|
|
(progn
|
|
,@body)
|
|
(select-window mh-in-show-buffer-saved-window))))
|
|
|
|
(put 'mh-in-show-buffer 'lisp-indent-hook 1)
|
|
|
|
(defmacro mh-make-seq (name msgs) (list 'cons name msgs))
|
|
|
|
(defmacro mh-seq-name (pair) (list 'car pair))
|
|
|
|
(defmacro mh-seq-msgs (pair) (list 'cdr pair))
|
|
|
|
|
|
;;; Ensure new buffers won't get this mode if default-major-mode is nil.
|
|
(put 'mh-show-mode 'mode-class 'special)
|
|
|
|
(define-derived-mode mh-show-mode text-mode "MH-Show"
|
|
"Major mode for showing messages in mh-e.
|
|
The value of `mh-show-mode-hook' is called when a new message is displayed."
|
|
(set (make-local-variable 'mail-header-separator) mh-mail-header-separator)
|
|
(mh-show-unquote-From)
|
|
(when mh-show-use-goto-addr
|
|
(if (not (featurep 'goto-addr))
|
|
(load "goto-addr" t t))
|
|
(if (fboundp 'goto-address)
|
|
(goto-address)))
|
|
(make-local-variable 'font-lock-defaults)
|
|
(set (make-local-variable 'font-lock-support-mode) nil)
|
|
(cond
|
|
((equal mh-highlight-citation-p 'font-lock)
|
|
(setq font-lock-defaults '(mh-show-font-lock-keywords-with-cite t)))
|
|
((equal mh-highlight-citation-p 'gnus)
|
|
(setq font-lock-defaults '(mh-show-font-lock-keywords t))
|
|
(mh-gnus-article-highlight-citation))
|
|
(t
|
|
(setq font-lock-defaults '(mh-show-font-lock-keywords t)))))
|
|
|
|
(defun mh-maybe-show (&optional msg)
|
|
;; If in showing mode, then display the message pointed to by the cursor.
|
|
(if mh-showing-mode (mh-show msg)))
|
|
|
|
(defun mh-show (&optional message)
|
|
"Show MESSAGE (default: message at cursor).
|
|
Force a two-window display with the folder window on top (size
|
|
`mh-summary-height') and the show buffer below it.
|
|
If the message is already visible, display the start of the message.
|
|
|
|
Display of the message is controlled by setting the variables
|
|
`mh-clean-message-header' and `mhl-formfile'. The default behavior is
|
|
to scroll uninteresting headers off the top of the window.
|
|
Type \"\\[mh-header-display]\" to see the message with all its headers."
|
|
(interactive)
|
|
(and mh-showing-with-headers
|
|
(or mhl-formfile mh-clean-message-header)
|
|
(mh-invalidate-show-buffer))
|
|
(mh-show-msg message))
|
|
|
|
(defun mh-show-mouse (EVENT)
|
|
"Move point to mouse EVENT and show message."
|
|
(interactive "e")
|
|
(mouse-set-point EVENT)
|
|
(mh-show))
|
|
|
|
(defun mh-show-msg (msg)
|
|
(if (not msg)
|
|
(setq msg (mh-get-msg-num t)))
|
|
(mh-showing-mode t)
|
|
(setq mh-page-to-next-msg-p nil)
|
|
(let ((folder mh-current-folder)
|
|
(clean-message-header mh-clean-message-header)
|
|
(show-window (get-buffer-window mh-show-buffer)))
|
|
(if (not (eq (next-window (minibuffer-window)) (selected-window)))
|
|
(delete-other-windows)) ; force ourself to the top window
|
|
(mh-in-show-buffer (mh-show-buffer)
|
|
(if (and show-window
|
|
(equal (mh-msg-filename msg folder) buffer-file-name))
|
|
(progn ;just back up to start
|
|
(goto-char (point-min))
|
|
(if (not clean-message-header)
|
|
(mh-start-of-uncleaned-message)))
|
|
(mh-display-msg msg folder))))
|
|
(if (not (= (1+ (window-height)) (frame-height))) ;not horizontally split
|
|
(shrink-window (- (window-height) mh-summary-height)))
|
|
(mh-recenter nil)
|
|
(if (not (memq msg mh-seen-list)) (setq mh-seen-list (cons msg mh-seen-list)))
|
|
(when mh-update-sequences-after-mh-show
|
|
(mh-update-sequences))
|
|
(run-hooks 'mh-show-hook))
|
|
|
|
|
|
(defun mh-decode-quoted-printable ()
|
|
;; Run mimedecode commmand on current buffer, replacing it contents.
|
|
(let ((case-fold-search t))
|
|
(goto-char (point-min))
|
|
(when (and (re-search-forward
|
|
"^content-transfer-encoding:[ \t]*quoted-printable"
|
|
nil t)
|
|
(search-forward "\n\n" nil t))
|
|
(message "Converting quoted-printable characters...")
|
|
(let ((modified (buffer-modified-p))
|
|
(command "mimedecode"))
|
|
(shell-command-on-region (point-min) (point-max) command t t)
|
|
(if (fboundp 'deactivate-mark)
|
|
(deactivate-mark))
|
|
(set-buffer-modified-p modified))
|
|
(message "Converting quoted-printable characters... done."))))
|
|
|
|
|
|
(defun mh-show-unquote-From ()
|
|
;; Decode >From at beginning of lines for mh-show-mode
|
|
(save-excursion
|
|
(let ((modified (buffer-modified-p))
|
|
(case-fold-search nil))
|
|
(goto-char (mail-header-end))
|
|
(while (re-search-forward "^>From" nil t)
|
|
(replace-match "From"))
|
|
(set-buffer-modified-p modified))))
|
|
|
|
(defun mh-display-msg (msg-num folder)
|
|
;; Display message NUMBER of FOLDER.
|
|
;; Sets the current buffer to the show buffer.
|
|
(set-buffer folder)
|
|
;; Bind variables in folder buffer in case they are local
|
|
(let ((formfile mhl-formfile)
|
|
(clean-message-header mh-clean-message-header)
|
|
(invisible-headers mh-invisible-headers)
|
|
(visible-headers mh-visible-headers)
|
|
(msg-filename (mh-msg-filename msg-num))
|
|
(show-buffer mh-show-buffer))
|
|
(if (not (file-exists-p msg-filename))
|
|
(error "Message %d does not exist" msg-num))
|
|
(set-buffer show-buffer)
|
|
(cond ((not (equal msg-filename buffer-file-name))
|
|
(mh-unvisit-file)
|
|
(erase-buffer)
|
|
;; Changing contents, so this hook needs to be reinitialized.
|
|
;; pgp.el uses this.
|
|
(if (boundp 'write-contents-hooks) ;Emacs 19
|
|
(kill-local-variable 'write-contents-hooks))
|
|
(if formfile
|
|
(mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
|
|
(if (stringp formfile)
|
|
(list "-form" formfile))
|
|
msg-filename)
|
|
(insert-file-contents msg-filename))
|
|
(if mh-decode-quoted-printable
|
|
(mh-decode-quoted-printable))
|
|
(goto-char (point-min))
|
|
(cond (clean-message-header
|
|
(mh-clean-msg-header (point-min)
|
|
invisible-headers
|
|
visible-headers)
|
|
(goto-char (point-min)))
|
|
(t
|
|
(mh-start-of-uncleaned-message)))
|
|
;; the parts of visiting we want to do (no locking)
|
|
(or (eq buffer-undo-list t) ;don't save undo info for prev msgs
|
|
(setq buffer-undo-list nil))
|
|
(set-buffer-modified-p nil)
|
|
(set-buffer-auto-saved)
|
|
;; the parts of set-visited-file-name we want to do (no locking)
|
|
(setq buffer-file-name msg-filename)
|
|
(setq buffer-backed-up nil)
|
|
(auto-save-mode 1)
|
|
(set-mark nil)
|
|
(mh-show-mode)
|
|
(setq mode-line-buffer-identification
|
|
(list (format mh-show-buffer-mode-line-buffer-id
|
|
folder msg-num)))
|
|
(set-buffer folder)
|
|
(setq mh-showing-with-headers nil)))))
|
|
|
|
(defun mh-start-of-uncleaned-message ()
|
|
;; position uninteresting headers off the top of the window
|
|
(let ((case-fold-search t))
|
|
(re-search-forward
|
|
"^To:\\|^Cc:\\|^From:\\|^Subject:\\|^Date:" nil t)
|
|
(beginning-of-line)
|
|
(mh-recenter 0)))
|
|
|
|
|
|
(defun mh-invalidate-show-buffer ()
|
|
;; Invalidate the show buffer so we must update it to use it.
|
|
(if (get-buffer mh-show-buffer)
|
|
(save-excursion
|
|
(set-buffer mh-show-buffer)
|
|
(mh-unvisit-file))))
|
|
|
|
|
|
(defun mh-unvisit-file ()
|
|
;; Separate current buffer from the message file it was visiting.
|
|
(or (not (buffer-modified-p))
|
|
(null buffer-file-name) ;we've been here before
|
|
(yes-or-no-p (format "Message %s modified; flush changes? "
|
|
(file-name-nondirectory buffer-file-name)))
|
|
(error "Flushing changes not confirmed"))
|
|
(clear-visited-file-modtime)
|
|
(unlock-buffer)
|
|
(setq buffer-file-name nil))
|
|
|
|
|
|
(defun mh-get-msg-num (error-if-no-message)
|
|
;; Return the message number of the displayed message. If the argument
|
|
;; ERROR-IF-NO-MESSAGE is non-nil, then complain if the cursor is not
|
|
;; pointing to a message.
|
|
(save-excursion
|
|
(beginning-of-line)
|
|
(cond ((looking-at mh-scan-msg-number-regexp)
|
|
(string-to-int (buffer-substring (match-beginning 1)
|
|
(match-end 1))))
|
|
(error-if-no-message
|
|
(error "Cursor not pointing to message"))
|
|
(t nil))))
|
|
|
|
|
|
(defun mh-msg-filename (msg &optional folder)
|
|
;; Return the file name of MESSAGE in FOLDER (default current folder).
|
|
(expand-file-name (int-to-string msg)
|
|
(if folder
|
|
(mh-expand-file-name folder)
|
|
mh-folder-filename)))
|
|
|
|
|
|
(defun mh-clean-msg-header (start invisible-headers visible-headers)
|
|
;; Flush extraneous lines in a message header, from the given POINT to the
|
|
;; end of the message header. If VISIBLE-HEADERS is non-nil, it contains a
|
|
;; regular expression specifying the lines to display, otherwise
|
|
;; INVISIBLE-HEADERS contains a regular expression specifying lines to
|
|
;; delete from the header.
|
|
(let ((case-fold-search t)
|
|
(after-change-functions nil)) ;Work around emacs-20 font-lock bug
|
|
;causing an endless loop.
|
|
(save-restriction
|
|
(goto-char start)
|
|
(if (search-forward "\n\n" nil 'move)
|
|
(backward-char 1))
|
|
(narrow-to-region start (point))
|
|
(goto-char (point-min))
|
|
(if visible-headers
|
|
(while (< (point) (point-max))
|
|
(cond ((looking-at visible-headers)
|
|
(forward-line 1)
|
|
(while (looking-at "[ \t]") (forward-line 1)))
|
|
(t
|
|
(mh-delete-line 1)
|
|
(while (looking-at "[ \t]")
|
|
(mh-delete-line 1)))))
|
|
(while (re-search-forward invisible-headers nil t)
|
|
(beginning-of-line)
|
|
(mh-delete-line 1)
|
|
(while (looking-at "[ \t]")
|
|
(mh-delete-line 1))))
|
|
(unlock-buffer))))
|
|
|
|
|
|
(defun mh-recenter (arg)
|
|
;; Like recenter but with two improvements:
|
|
;; - only does anything if the current buffer is in the selected
|
|
;; window. (Commands like save-some-buffers can make this false.)
|
|
;; - nil arg means recenter as with C-u prefix
|
|
(if (eq (get-buffer-window (current-buffer))
|
|
(selected-window))
|
|
;; '(4) is the same as C-u prefix argument.
|
|
(recenter (if arg arg '(4)))))
|
|
|
|
|
|
(defun mh-delete-line (lines)
|
|
;; Delete version of kill-line.
|
|
(delete-region (point) (progn (forward-line lines) (point))))
|
|
|
|
(defun mh-notate (msg notation offset)
|
|
;; Marks MESSAGE with the character NOTATION at position OFFSET.
|
|
;; Null MESSAGE means the message that the cursor points to.
|
|
(save-excursion
|
|
(if (or (null msg)
|
|
(mh-goto-msg msg t t))
|
|
(with-mh-folder-updating (t)
|
|
(beginning-of-line)
|
|
(forward-char offset)
|
|
(delete-char 1)
|
|
(insert notation)))))
|
|
|
|
|
|
(defun mh-find-msg-get-num (step)
|
|
;; Return the message number of the message on the current scan line
|
|
;; or one nearby. Jumps over non-message lines, such as inc errors.
|
|
;; STEP tells whether to search forward or backward if we have to search.
|
|
(or (mh-get-msg-num nil)
|
|
(let ((msg-num nil)
|
|
(nreverses 0))
|
|
(while (and (not msg-num)
|
|
(< nreverses 2))
|
|
(cond ((eobp)
|
|
(setq step -1)
|
|
(setq nreverses (1+ nreverses)))
|
|
((bobp)
|
|
(setq step 1)
|
|
(setq nreverses (1+ nreverses))))
|
|
(forward-line step)
|
|
(setq msg-num (mh-get-msg-num nil)))
|
|
msg-num)))
|
|
|
|
(defun mh-goto-msg (number &optional no-error-if-no-message dont-show)
|
|
"Position the cursor at message NUMBER.
|
|
Optional non-nil second argument NO-ERROR-IF-NO-MESSAGE means return nil
|
|
instead of signaling an error if message does not exist; in this case, the
|
|
cursor is positioned near where the message would have been.
|
|
Non-nil third argument DONT-SHOW means not to show the message."
|
|
(interactive "NGo to message: ")
|
|
(setq number (prefix-numeric-value number)) ;Emacs 19
|
|
;; This basic routine tries to be as fast as possible,
|
|
;; using a binary search and minimal regexps.
|
|
(let ((cur-msg (mh-find-msg-get-num -1))
|
|
(jump-size mh-msg-count))
|
|
(while (and (> jump-size 1)
|
|
cur-msg
|
|
(not (eq cur-msg number)))
|
|
(cond ((< cur-msg number)
|
|
(setq jump-size (min (- number cur-msg)
|
|
(ash (1+ jump-size) -1)))
|
|
(forward-line jump-size)
|
|
(setq cur-msg (mh-find-msg-get-num 1)))
|
|
(t
|
|
(setq jump-size (min (- cur-msg number)
|
|
(ash (1+ jump-size) -1)))
|
|
(forward-line (- jump-size))
|
|
(setq cur-msg (mh-find-msg-get-num -1)))))
|
|
(if (eq cur-msg number)
|
|
(progn
|
|
(beginning-of-line)
|
|
(or dont-show
|
|
(mh-maybe-show number)
|
|
t))
|
|
(if (not no-error-if-no-message)
|
|
(error "No message %d" number)))))
|
|
|
|
|
|
(defun mh-msg-search-pat (n)
|
|
;; Return a search pattern for message N in the scan listing.
|
|
(format mh-scan-msg-search-regexp n))
|
|
|
|
|
|
(defun mh-get-profile-field (field)
|
|
;; Find and return the value of FIELD in the current buffer.
|
|
;; Returns NIL if the field is not in the buffer.
|
|
(let ((case-fold-search t))
|
|
(goto-char (point-min))
|
|
(cond ((not (re-search-forward (format "^%s" field) nil t)) nil)
|
|
((looking-at "[\t ]*$") nil)
|
|
(t
|
|
(re-search-forward "[\t ]*\\([^\t \n].*\\)$" nil t)
|
|
(let ((start (match-beginning 1)))
|
|
(end-of-line)
|
|
(buffer-substring start (point)))))))
|
|
|
|
(defvar mail-user-agent)
|
|
(defvar read-mail-command)
|
|
|
|
(defvar mh-find-path-run nil
|
|
"Non-nil if `mh-find-path' has been run already.")
|
|
|
|
(defun mh-find-path ()
|
|
;; Set mh-progs, mh-lib, and mh-libs-progs
|
|
;; (This step is necessary if MH was installed after this Emacs was dumped.)
|
|
;; From profile file, set mh-user-path, mh-draft-folder,
|
|
;; mh-unseen-seq, mh-previous-seq, mh-inbox.
|
|
(mh-find-progs)
|
|
(unless mh-find-path-run
|
|
(setq mh-find-path-run t)
|
|
(setq read-mail-command 'mh-rmail)
|
|
(setq mail-user-agent 'mh-e-user-agent))
|
|
(save-excursion
|
|
;; Be sure profile is fully expanded before switching buffers
|
|
(let ((profile (expand-file-name (or (getenv "MH") "~/.mh_profile"))))
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(setq buffer-offer-save nil) ;for people who set default to t
|
|
(erase-buffer)
|
|
(condition-case err
|
|
(insert-file-contents profile)
|
|
(file-error
|
|
(mh-install profile err)))
|
|
(setq mh-user-path (mh-get-profile-field "Path:"))
|
|
(if (not mh-user-path)
|
|
(setq mh-user-path "Mail"))
|
|
(setq mh-user-path
|
|
(file-name-as-directory
|
|
(expand-file-name mh-user-path (expand-file-name "~"))))
|
|
(setq mh-draft-folder (mh-get-profile-field "Draft-Folder:"))
|
|
(if mh-draft-folder
|
|
(progn
|
|
(if (not (mh-folder-name-p mh-draft-folder))
|
|
(setq mh-draft-folder (format "+%s" mh-draft-folder)))
|
|
(if (not (file-exists-p (mh-expand-file-name mh-draft-folder)))
|
|
(error "Draft folder \"%s\" not found. Create it and try again"
|
|
(mh-expand-file-name mh-draft-folder)))))
|
|
(setq mh-inbox (mh-get-profile-field "Inbox:"))
|
|
(cond ((not mh-inbox)
|
|
(setq mh-inbox "+inbox"))
|
|
((not (mh-folder-name-p mh-inbox))
|
|
(setq mh-inbox (format "+%s" mh-inbox))))
|
|
(setq mh-unseen-seq (mh-get-profile-field "Unseen-Sequence:"))
|
|
(if mh-unseen-seq
|
|
(setq mh-unseen-seq (intern mh-unseen-seq))
|
|
(setq mh-unseen-seq 'unseen)) ;old MH default?
|
|
(setq mh-previous-seq (mh-get-profile-field "Previous-Sequence:"))
|
|
(if mh-previous-seq
|
|
(setq mh-previous-seq (intern mh-previous-seq)))
|
|
(run-hooks 'mh-find-path-hook)))
|
|
(and mh-auto-folder-collect
|
|
(let ((mh-no-install t)) ;only get folders if MH installed
|
|
(condition-case err
|
|
(mh-make-folder-list-background)
|
|
(file-error))))) ;so don't complain if not installed
|
|
|
|
(defun mh-file-command-p (file)
|
|
"Return t if file FILE is the name of a executable regular file."
|
|
(and (file-regular-p file) (file-executable-p file)))
|
|
|
|
(defun mh-find-progs ()
|
|
"Find the directories for the installed MH/nmh binaries and config files.
|
|
Set the `mh-progs' and `mh-lib', and `mh-lib-progs' variables to the
|
|
directory names and set `mh-nmh-p' if we detect nmh instead of MH."
|
|
(let ((path (or (mh-path-search exec-path "mhparam")
|
|
(mh-path-search '("/usr/local/nmh/bin" ; nmh default
|
|
"/usr/local/bin/mh/"
|
|
"/usr/local/mh/"
|
|
"/usr/bin/mh/" ;Ultrix 4.2
|
|
"/usr/new/mh/" ;Ultrix <4.2
|
|
"/usr/contrib/mh/bin/" ;BSDI
|
|
"/usr/pkg/bin/" ; NetBSD
|
|
"/usr/local/bin/"
|
|
)
|
|
"mhparam"))))
|
|
(if (not path)
|
|
(error "Unable to find the `mhparam' command"))
|
|
(save-excursion
|
|
(let ((tmp-buffer (get-buffer-create mh-temp-buffer)))
|
|
(set-buffer tmp-buffer)
|
|
(unwind-protect
|
|
(progn
|
|
(call-process (expand-file-name "mhparam" path)
|
|
nil '(t nil) nil "libdir" "etcdir")
|
|
(goto-char (point-min))
|
|
(if (search-forward-regexp "^libdir:\\s-\\(\\S-+\\)\\s-*$" nil t)
|
|
(setq mh-lib-progs (match-string 1)
|
|
mh-lib mh-lib-progs
|
|
mh-progs path))
|
|
(goto-char (point-min))
|
|
(if (search-forward-regexp "^etcdir:\\s-\\(\\S-+\\)\\s-*$" nil t)
|
|
(setq mh-lib (match-string 1)
|
|
mh-nmh-p t)))
|
|
(kill-buffer tmp-buffer))))
|
|
(unless (and mh-progs mh-lib mh-lib-progs)
|
|
(error "Unable to determine paths from `mhparam' command"))))
|
|
|
|
(defun mh-path-search (path file &optional func-p)
|
|
;; Search PATH, a list of directory names, for FILE.
|
|
;; Returns the element of PATH that contains FILE, or nil if not found.
|
|
(while (and path
|
|
(not (funcall (or func-p 'mh-file-command-p)
|
|
(expand-file-name file (car path)))))
|
|
(setq path (cdr path)))
|
|
(car path))
|
|
|
|
(defvar mh-no-install nil) ;do not run install-mh
|
|
|
|
(defun mh-install (profile error-val)
|
|
;; Called to do error recovery if we fail to read the profile file.
|
|
;; If possible, initialize the MH environment.
|
|
(if (or (getenv "MH")
|
|
(file-exists-p profile)
|
|
mh-no-install)
|
|
(signal (car error-val)
|
|
(list (format "Cannot read MH profile \"%s\"" profile)
|
|
(car (cdr (cdr error-val))))))
|
|
;; The "install-mh" command will output a short note which
|
|
;; mh-exec-cmd will display to the user.
|
|
;; The MH 5 version of install-mh might try prompt the user
|
|
;; for information, which would fail here.
|
|
(mh-exec-cmd (expand-file-name "install-mh" mh-lib-progs) "-auto")
|
|
;; now try again to read the profile file
|
|
(erase-buffer)
|
|
(condition-case err
|
|
(insert-file-contents profile)
|
|
(file-error
|
|
(signal (car err) ;re-signal with more specific msg
|
|
(list (format "Cannot read MH profile \"%s\"" profile)
|
|
(car (cdr (cdr err))))))))
|
|
|
|
|
|
(defun mh-set-folder-modified-p (flag)
|
|
;; Mark current folder as modified or unmodified according to FLAG.
|
|
(set-buffer-modified-p flag))
|
|
|
|
|
|
(defun mh-find-seq (name) (assoc name mh-seq-list))
|
|
|
|
(defun mh-seq-to-msgs (seq)
|
|
;; Return a list of the messages in SEQUENCE.
|
|
(mh-seq-msgs (mh-find-seq seq)))
|
|
|
|
|
|
(defun mh-add-msgs-to-seq (msgs seq &optional internal-flag)
|
|
;; Add MESSAGE(s) to the SEQUENCE. If optional FLAG is non-nil, do not mark
|
|
;; the message in the scan listing or inform MH of the addition.
|
|
(let ((entry (mh-find-seq seq)))
|
|
(if (and msgs (atom msgs)) (setq msgs (list msgs)))
|
|
(if (null entry)
|
|
(setq mh-seq-list (cons (mh-make-seq seq msgs) mh-seq-list))
|
|
(if msgs (setcdr entry (append msgs (mh-seq-msgs entry)))))
|
|
(cond ((not internal-flag)
|
|
(mh-add-to-sequence seq msgs)
|
|
(mh-notate-seq seq mh-note-seq (1+ mh-cmd-note))))))
|
|
|
|
(defvar mh-folder-hist nil)
|
|
|
|
(defun mh-prompt-for-folder (prompt default can-create)
|
|
;; Prompt for a folder name with PROMPT. Returns the folder's name as a
|
|
;; string. DEFAULT is used if the folder exists and the user types return.
|
|
;; If the CAN-CREATE flag is t, then a non-existent folder is made.
|
|
(if (null default)
|
|
(setq default ""))
|
|
(let* ((prompt (format "%s folder%s" prompt
|
|
(if (equal "" default)
|
|
"? "
|
|
(format " [%s]? " default))))
|
|
read-name folder-name)
|
|
(if (null mh-folder-list)
|
|
(mh-set-folder-list))
|
|
(while (and (setq read-name (completing-read prompt mh-folder-list nil nil
|
|
"+" 'mh-folder-hist default))
|
|
(equal read-name "")
|
|
(equal default "")))
|
|
(cond ((or (equal read-name "") (equal read-name "+"))
|
|
(setq read-name default))
|
|
((not (mh-folder-name-p read-name))
|
|
(setq read-name (format "+%s" read-name))))
|
|
(if (or (not read-name) (equal "" read-name))
|
|
(error "No folder specified"))
|
|
(setq folder-name read-name)
|
|
(cond ((and (> (length folder-name) 0)
|
|
(eq (aref folder-name (1- (length folder-name))) ?/))
|
|
(setq folder-name (substring folder-name 0 -1))))
|
|
(let ((new-file-p (not (file-exists-p (mh-expand-file-name folder-name)))))
|
|
(cond ((and new-file-p
|
|
(y-or-n-p
|
|
(format "Folder %s does not exist. Create it? " folder-name)))
|
|
(message "Creating %s" folder-name)
|
|
(call-process "mkdir" nil nil nil (mh-expand-file-name folder-name))
|
|
(message "Creating %s...done" folder-name)
|
|
(setq mh-folder-list (cons (list read-name) mh-folder-list))
|
|
(run-hooks 'mh-folder-list-change-hook))
|
|
(new-file-p
|
|
(error "Folder %s is not created" folder-name))
|
|
((not (file-directory-p (mh-expand-file-name folder-name)))
|
|
(error "\"%s\" is not a directory"
|
|
(mh-expand-file-name folder-name)))
|
|
((and (null (assoc read-name mh-folder-list))
|
|
(null (assoc (concat read-name "/") mh-folder-list)))
|
|
(setq mh-folder-list (cons (list read-name) mh-folder-list))
|
|
(run-hooks 'mh-folder-list-change-hook))))
|
|
folder-name))
|
|
|
|
|
|
(defvar mh-make-folder-list-process nil) ;The background process collecting the folder list.
|
|
|
|
(defvar mh-folder-list-temp nil) ;mh-folder-list as it is being built.
|
|
|
|
(defvar mh-folder-list-partial-line "") ;Start of last incomplete line from folder process.
|
|
|
|
(defun mh-set-folder-list ()
|
|
;; Sets mh-folder-list correctly.
|
|
;; A useful function for the command line or for when you need to
|
|
;; sync by hand. Format is in a form suitable for completing read.
|
|
(message "Collecting folder names...")
|
|
(if (not mh-make-folder-list-process)
|
|
(mh-make-folder-list-background))
|
|
(while (eq (process-status mh-make-folder-list-process) 'run)
|
|
(accept-process-output mh-make-folder-list-process))
|
|
(setq mh-folder-list mh-folder-list-temp)
|
|
(run-hooks 'mh-folder-list-change-hook)
|
|
(setq mh-folder-list-temp nil)
|
|
(delete-process mh-make-folder-list-process)
|
|
(setq mh-make-folder-list-process nil)
|
|
(message "Collecting folder names...done"))
|
|
|
|
(defun mh-make-folder-list-background ()
|
|
;; Start a background process to compute a list of the user's folders.
|
|
;; Call mh-set-folder-list to wait for the result.
|
|
(cond
|
|
((not mh-make-folder-list-process)
|
|
(unless mh-inbox
|
|
(mh-find-path))
|
|
(let ((process-connection-type nil))
|
|
(setq mh-make-folder-list-process
|
|
(start-process "folders" nil (expand-file-name "folders" mh-progs)
|
|
"-fast"
|
|
(if mh-recursive-folders
|
|
"-recurse"
|
|
"-norecurse")))
|
|
(set-process-filter mh-make-folder-list-process
|
|
'mh-make-folder-list-filter)
|
|
(process-kill-without-query mh-make-folder-list-process)))))
|
|
|
|
(defun mh-make-folder-list-filter (process output)
|
|
;; parse output from "folders -fast"
|
|
(let ((position 0)
|
|
line-end
|
|
new-folder
|
|
(prevailing-match-data (match-data)))
|
|
(unwind-protect
|
|
;; make sure got complete line
|
|
(while (setq line-end (string-match "\n" output position))
|
|
(setq new-folder (format "+%s%s"
|
|
mh-folder-list-partial-line
|
|
(substring output position line-end)))
|
|
(setq mh-folder-list-partial-line "")
|
|
;; is new folder a subfolder of previous?
|
|
(if (and mh-folder-list-temp
|
|
(string-match
|
|
(regexp-quote
|
|
(concat (car (car mh-folder-list-temp)) "/"))
|
|
new-folder))
|
|
;; append slash to parent folder for better completion
|
|
;; (undone by mh-prompt-for-folder)
|
|
(setq mh-folder-list-temp
|
|
(cons
|
|
(list new-folder)
|
|
(cons
|
|
(list (concat (car (car mh-folder-list-temp)) "/"))
|
|
(cdr mh-folder-list-temp))))
|
|
(setq mh-folder-list-temp
|
|
(cons (list new-folder)
|
|
mh-folder-list-temp)))
|
|
(setq position (1+ line-end)))
|
|
(set-match-data prevailing-match-data))
|
|
(setq mh-folder-list-partial-line (substring output position))))
|
|
|
|
|
|
(defun mh-folder-name-p (name)
|
|
;; Return non-NIL if NAME is possibly the name of a folder.
|
|
;; A name (a string or symbol) can be a folder name if it begins with "+".
|
|
(if (symbolp name)
|
|
(eq (aref (symbol-name name) 0) ?+)
|
|
(and (> (length name) 0)
|
|
(eq (aref name 0) ?+))))
|
|
|
|
|
|
;;; Issue commands to MH.
|
|
|
|
|
|
(defun mh-exec-cmd (command &rest args)
|
|
;; Execute mh-command COMMAND with ARGS.
|
|
;; The side effects are what is desired.
|
|
;; Any output is assumed to be an error and is shown to the user.
|
|
;; The output is not read or parsed by mh-e.
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(erase-buffer)
|
|
(apply 'call-process
|
|
(expand-file-name command mh-progs) nil t nil
|
|
(mh-list-to-string args))
|
|
(if (> (buffer-size) 0)
|
|
(save-window-excursion
|
|
(switch-to-buffer-other-window mh-temp-buffer)
|
|
(sit-for 5)))))
|
|
|
|
|
|
(defun mh-exec-cmd-error (env command &rest args)
|
|
;; In environment ENV, execute mh-command COMMAND with args ARGS.
|
|
;; ENV is nil or a string of space-separated "var=value" elements.
|
|
;; Signals an error if process does not complete successfully.
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(erase-buffer)
|
|
(let ((status
|
|
(if env
|
|
;; the shell hacks necessary here shows just how broken Unix is
|
|
(apply 'call-process "/bin/sh" nil t nil "-c"
|
|
(format "%s %s ${1+\"$@\"}"
|
|
env
|
|
(expand-file-name command mh-progs))
|
|
command
|
|
(mh-list-to-string args))
|
|
(apply 'call-process
|
|
(expand-file-name command mh-progs) nil t nil
|
|
(mh-list-to-string args)))))
|
|
(mh-handle-process-error command status))))
|
|
|
|
|
|
(defun mh-exec-cmd-daemon (command &rest args)
|
|
;; Execute MH command COMMAND with ARGS in the background.
|
|
;; Any output from command is displayed in an asynchronous pop-up window.
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(erase-buffer))
|
|
(let* ((process-connection-type nil)
|
|
(process (apply 'start-process
|
|
command nil
|
|
(expand-file-name command mh-progs)
|
|
(mh-list-to-string args))))
|
|
(set-process-filter process 'mh-process-daemon)))
|
|
|
|
(defun mh-process-daemon (process output)
|
|
;; Process daemon that puts output into a temporary buffer.
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(insert-before-markers output)
|
|
(display-buffer mh-temp-buffer))
|
|
|
|
|
|
(defun mh-exec-cmd-quiet (raise-error command &rest args)
|
|
;; Args are RAISE-ERROR, COMMANDS, ARGS....
|
|
;; Execute MH command COMMAND with ARGS. ARGS is a list of strings.
|
|
;; Return at start of mh-temp buffer, where output can be parsed and used.
|
|
;; Returns value of call-process, which is 0 for success,
|
|
;; unless RAISE-ERROR is non-nil, in which case an error is signaled
|
|
;; if call-process returns non-0.
|
|
(set-buffer (get-buffer-create mh-temp-buffer))
|
|
(erase-buffer)
|
|
(let ((value
|
|
(apply 'call-process
|
|
(expand-file-name command mh-progs) nil t nil
|
|
args)))
|
|
(goto-char (point-min))
|
|
(if raise-error
|
|
(mh-handle-process-error command value)
|
|
value)))
|
|
|
|
|
|
(defun mh-exec-cmd-output (command display &rest args)
|
|
;; Execute MH command COMMAND with DISPLAY flag and ARGS.
|
|
;; Put the output into buffer after point. Set mark after inserted text.
|
|
;; Output is expected to be shown to user, not parsed by mh-e.
|
|
(push-mark (point) t)
|
|
(apply 'call-process
|
|
(expand-file-name command mh-progs) nil t display
|
|
(mh-list-to-string args))
|
|
(exchange-point-and-mark))
|
|
|
|
|
|
(defun mh-exec-lib-cmd-output (command &rest args)
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;; Execute MH library command COMMAND with ARGS.
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;; Put the output into buffer after point. Set mark after inserted text.
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(apply 'mh-exec-cmd-output (expand-file-name command mh-lib-progs) nil args))
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(defun mh-handle-process-error (command status)
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;; Raise error if COMMAND returned non-0 STATUS, otherwise return STATUS.
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;; STATUS is return value from call-process.
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;; Program output is in current buffer.
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;; If output is too long to include in error message, display the buffer.
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(cond ((eq status 0) ;success
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status)
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((stringp status) ;kill string
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(error "%s: %s" command status))
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(t ;exit code
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(cond
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((= (buffer-size) 0) ;program produced no error message
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(error "%s: exit code %d" command status))
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(t
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;; will error message fit on one line?
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(goto-line 2)
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(if (and (< (buffer-size) (frame-width))
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(eobp))
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(error "%s"
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(buffer-substring 1 (progn (goto-char 1)
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(end-of-line)
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(point))))
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(display-buffer (current-buffer))
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(error "%s failed with status %d. See error message in other window"
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command status)))))))
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(defun mh-expand-file-name (filename &optional default)
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;; Just like `expand-file-name', but also handles MH folder names.
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;; Assumes that any filename that starts with '+' is a folder name.
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(if (mh-folder-name-p filename)
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(expand-file-name (substring filename 1) mh-user-path)
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(expand-file-name filename default)))
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(defun mh-list-to-string (l)
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;; Flattens the list L and makes every element of the new list into a string.
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(nreverse (mh-list-to-string-1 l)))
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(defun mh-list-to-string-1 (l)
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(let ((new-list nil))
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(while l
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(cond ((null (car l)))
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((symbolp (car l))
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(setq new-list (cons (symbol-name (car l)) new-list)))
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((numberp (car l))
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(setq new-list (cons (int-to-string (car l)) new-list)))
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((equal (car l) ""))
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((stringp (car l)) (setq new-list (cons (car l) new-list)))
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((listp (car l))
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(setq new-list (nconc (mh-list-to-string-1 (car l))
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new-list)))
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(t (error "Bad element in mh-list-to-string: %s" (car l))))
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(setq l (cdr l)))
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new-list))
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(provide 'mh-utils)
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;;; mh-utils.el ends here
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