;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;                            Candy Mail ver. 0.0
;; Date: Nov. 17, 1995
;; Author: Carlos C. Rodriguez.
;;
;;  Latest version and related information will be available at  
;;
;;               http://omega.albany.edu:8008/
;;           
;; Installation: Save this file with name candymail.el in a directory 
;;               appearing in your load-path variable. Then do,
;;
;;               M-x load-file candymail.el RET
;;              
;; Summary: This is a modification of the usual emacs Mail mode
;;          that allows to send mail to **concepts** instead of specific
;;          email addresses. By specifying keywords for USENET Newsgroups
;;          and a regular expression for articles, it sends the message to
;;          an automatically generated list of email addresses extracted
;;          from the articles that matched the regular expresion in the 
;;          selected Newsgroups.
;;
;; To Run:  M-x qdnet-mail
;;
;;
;; Legalese: This is GNU software.
;; You can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; GNU software is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;
;;
;; Code
(defun QdNet (KEYW-GRPS KEYW-ARTS &optional REG-FLAG)
  "Requests keywords for selecting newsgroups, KEYW-GRPS, and for selecting \
 articles, KEYW-ARTS, this last one could be a regular expression if \
 REG-FLAG is not nil"
  (interactive "sEnter Newsgroups keywords separated by space: \nsEnter Article keyword or a regexp: ")  
  (let ((oldbuff (current-buffer)))
    (if (not REG-FLAG)
	(setq REG-FLAG (y-or-n-p "Are the Article keywords a regexp? ")))
    (setq QdNet-list-of-groups (grab-query-loop-newsgroups KEYW-GRPS)
	  QdNet-email-address-list nil) 
    (save-excursion
      (grab-addrss-news-with-match 
       QdNet-list-of-groups
       KEYW-ARTS
       REG-FLAG))
    (switch-to-buffer oldbuff)
    (delete-other-windows)
    QdNet-list-of-groups))

(defun grab-query-loop-newsgroups (GRAB-KEYWORDS)
  "Asks for the keywords to select newsgroups"
  (interactive "sEnter list of keywords: ")
  (let* ((list-of-newsgroups nil)
	 (NOERROR t))
    (let* ((list-of-keywords (string-to-list GRAB-KEYWORDS)))
      (if (boundp 'gnus-group-buffer) nil (gnus))
      (save-excursion
	(set-buffer gnus-group-buffer)
	(while list-of-keywords
	  (goto-char (point-min))
	  (while (re-search-forward (car list-of-keywords) nil 1)
	    (beginning-of-line)
	    (re-search-forward "[:a-z\.\ \-0-9]+" nil 1)
	    (copy-region-as-kill (match-beginning 0) (match-end 0))
	    (if (y-or-n-p (car kill-ring)) 
		(setq list-of-newsgroups 
		      (cons 
		       (let* ((txt (car kill-ring)))
			 (substring txt 
				    (string-match 
				     "[a-zA-Z][a-zA-Z0-9\.\-]+" txt)))
		       list-of-newsgroups))))
	  (setq list-of-keywords (cdr list-of-keywords)))))
    list-of-newsgroups))

(defun grab-addrss-news-with-match (LIST-OF-N STR &optional REG-FLAG)
  "Grab the email addresses from where the articles in the groups \
 LIST-OF-N match the string STR. If the optional argument REG-FLAG \
 is non-nil, STR is assumed to be a regular expression"
  (interactive)
  (let* ((next-group (car LIST-OF-N))
	 (NOERROR t))
    (setq qdnet-record-buffer (get-buffer-create "*QdNet*"))
    (save-excursion
      (set-buffer qdnet-record-buffer)
      (goto-char (point-max))
      (insert (concat "\n" STR "\n"))
      (if REG-FLAG nil (setq STR (regexp-quote STR)))
      (while next-group
	(goto-char (point-max))
	(insert (concat "\n" next-group "\n"))
	;;If group has more than 100000 articles req. confirmation
	(setq gnus-large-newsgroup 100000)
	(save-excursion
	  (gnus-summary-read-group next-group t t)
	  (while (gnus-summary-search-article STR)
	    (grab-from-mail-address gnus-article-buffer qdnet-record-buffer)
	    ;;	(switch-to-buffer "*Summary*")
	    (gnus-summary-next-unread-article)))
	(setq LIST-OF-N (cdr LIST-OF-N))
	(setq next-group (car LIST-OF-N))))))

(defun grab-from-mail-address (FROM-BUFF TO-BUFF)
  "Grabs the email address following From: in the current buffer"
  (interactive "bBuffer to grab from: \nBBuffer to save into: ")
  (setq fromb (get-buffer-create FROM-BUFF)
	tob (get-buffer-create TO-BUFF))
 (save-excursion
    (set-buffer fromb)
    (goto-char (point-min))
    (re-search-forward "^From:" nil 1)
    (re-search-forward "[a-zA-Z0-9\.]+@[a-zA-Z0-9\.]+" nil 1)
    (copy-region-as-kill (match-beginning 0) (match-end 0)))
  (save-excursion
    (set-buffer tob)
    (goto-char (point-max))
    (yank)
    (if (not (member (car kill-ring) QdNet-email-address-list))
	(setq QdNet-email-address-list 
	      (cons (car kill-ring) QdNet-email-address-list)))
    (insert "\n")))

(defun is-there (elem mlist)
  "t if yes nil if no"
  (interactive)
  (cond ((eq elem nil) t)
	((eq elem (car mlist)) t)
	(mlist (is-there elem (cdr mlist)))
	(t nil)))



(defun get-index-list (str)
  "gets the index of the begining of each word in string str"
  (interactive)
  (let* ((SPACE 32)
	 (LAST (length str))
	 (i 0)
	 (j 0)
	 (index-list nil))
    (while (< i LAST)
      (while (eq (aref str i) SPACE)
	(setq i (1+ i)))
      (setq index-list (cons i index-list))
      (setq j i)
      (while (and (< j LAST) (not (eq (aref str j) SPACE)))
	(setq j (1+ j)))
      (setq index-list (cons (- j i) index-list))
      (setq i j))
    (setq index-list (reverse index-list))))

(defun get-next-char-index (str init char)
  "Gets the position in the string str of the first occurrence of char starting\
from position init"
  (interactive)
  (let* ((l-of-str (length str)))
    (if (or (< init 0) (> init l-of-str))
	nil
      (while (and (< init l-of-str) (not (eq (aref str init) char)))
	(setq init (1+ init)))
      init)))

(defun string-to-list (str)
  "Transforms the string of words into the list of strings of the words"
  (interactive)
  (let* ((thelist (get-index-list str))
	 (list-out nil))
    (while thelist
      (setq list-out (cons 
		      (substring str 
				 (car thelist) 
				 (+ (car thelist) (car (cdr thelist))))
		      list-out))
      (setq thelist (cdr (cdr thelist))))
    (reverse list-out)))


(defun and-or-to-regexp (a-o-string)
  "transforms a string with AND and OR and parenthesis into\
 a string with an equivalent regular expression. The transformations are
   spaceORspace  ----> \\| 
   spaceANDspace ----> .*[\\n]* 
              (  ---->  \\(  
              )  ---->  \\)"
  (interactive "sEnter Boolean string: ")
  (let ((SPACE 32)
	(OPAR 40);; ascii decimal open parenthesis
	(CPAR 41);; ascii decimal close parenthesis
	(LAST (length a-o-string))
	(out-string "")
	(i 0)
	(s t))
    (while (< i (- LAST 5))
      (cond
       ((eq (aref a-o-string i) OPAR) 
	  (setq out-string (concat out-string "\\("))
	  (setq i (1+ i)))
       ((eq (aref a-o-string i) CPAR) 
	  (setq out-string (concat out-string "\\)"))
	  (setq i (1+ i)))
       ((string= (substring a-o-string i (+ i 4)) " OR ")
	(setq out-string (concat out-string "\\|"))
	  (setq i (+ i 4)))
       ((string= (substring a-o-string i (+ i 5)) " AND ")
	(setq out-string (concat out-string ".*[\\n]*"))
	  (setq i (+ i 5)))
       (t
	(setq out-string 
	      (concat out-string (substring a-o-string i (setq i (1+ i))))))))
    (while (< i LAST)
      (cond
       ((eq (aref a-o-string i) OPAR) 
	  (setq out-string (concat out-string "\\("))
	  (setq i (1+ i)))
       ((eq (aref a-o-string i) CPAR) 
	  (setq out-string (concat out-string "\\)"))
	  (setq i (1+ i)))
       (t
	(setq out-string 
	      (concat out-string (substring a-o-string i (setq i (1+ i))))))))
    out-string))


;;
;; from sendmail.el
;;

(defun mail-send ()
  "Send the message in the current buffer.
If `mail-interactive' is non-nil, wait for success indication
or error messages, and inform user.
Otherwise any failure is reported in a message back to
the user from the mailer."
  (interactive)
  (if (if buffer-file-name
	  (y-or-n-p "Send buffer contents as mail message? ")
	(or (buffer-modified-p)
	    (y-or-n-p "Message already sent; resend? ")))
      (progn
	(message "Sending...")
	(run-hooks 'mail-send-hook)
	(funcall send-mail-function)
	;; Now perform actions on successful sending.
	(while mail-send-actions
	  (condition-case nil
	      (apply (car (car mail-send-actions))
		     (cdr (car mail-send-actions)))
	    (error))
	  (setq mail-send-actions (cdr mail-send-actions)))
	(message "Sending...done")
	;; If buffer has no file, mark it as unmodified and delete autosave.
	(if (not buffer-file-name)
	    (progn
	      (set-buffer-modified-p nil)
	      (delete-auto-save-file-if-necessary t))))))


(defun sendmail-send-it ()
  (let ((errbuf (if mail-interactive
		    (generate-new-buffer " sendmail errors")
		  0))
	(tembuf (generate-new-buffer " sendmail temp"))
	(case-fold-search nil)
	delimline
	(mailbuf (current-buffer)))
    (unwind-protect
	(save-excursion
	  (set-buffer tembuf)
	  (erase-buffer)
	  (insert-buffer-substring mailbuf)
	  (goto-char (point-max))
	  ;; require one newline at the end.
	  (or (= (preceding-char) ?\n)
	      (insert ?\n))
	  ;; Change header-delimiter to be what sendmail expects.
	  (goto-char (point-min))
	  (re-search-forward
	    (concat "^" (regexp-quote mail-header-separator) "\n"))
	  (replace-match "\n")
	  (backward-char 1)
	  (setq delimline (point-marker))
	  (if mail-aliases
	      (expand-mail-aliases (point-min) delimline))
	  (goto-char (point-min))
	  ;; ignore any blank lines in the header
	  (while (and (re-search-forward "\n\n\n*" delimline t)
		      (< (point) delimline))
	    (replace-match "\n"))
	  (let ((case-fold-search t))
	    (goto-char (point-min))
	    (if (re-search-forward "^Sender:" delimline t)
		(error "Sender may not be specified."))
	    ;; Find and handle any FCC fields.
	    (goto-char (point-min))
	    (if (re-search-forward "^FCC:" delimline t)
		(mail-do-fcc delimline))
;;; Apparently this causes a duplicate Sender.
;;;	    ;; If the From is different than current user, insert Sender.
;;;	    (goto-char (point-min))
;;;	    (and (re-search-forward "^From:"  delimline t)
;;;		 (progn
;;;		   (require 'mail-utils)
;;;		   (not (string-equal
;;;			 (mail-strip-quoted-names
;;;			  (save-restriction
;;;			    (narrow-to-region (point-min) delimline)
;;;			    (mail-fetch-field "From")))
;;;			 (user-login-name))))
;;;		 (progn
;;;		   (forward-line 1)
;;;		   (insert "Sender: " (user-login-name) "\n")))
	    ;; "S:" is an abbreviation for "Subject:".
	    (goto-char (point-min))
	    (if (re-search-forward "^S:" delimline t)
		(replace-match "Subject:"))
	    ;; Don't send out a blank subject line
	    (goto-char (point-min))
	    (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
		(replace-match ""))
	    (if mail-interactive
		(save-excursion
		  (set-buffer errbuf)
		  (erase-buffer))))
	  (apply 'call-process-region
		 (append (list (point-min) (point-max)
			       (if (boundp 'sendmail-program)
				   sendmail-program
				 "/usr/lib/sendmail")
			       nil errbuf nil
			       "-oi" "-t")
			 ;; Always specify who from,
			 ;; since some systems have broken sendmails.
			 (list "-f" (user-login-name))
;;;			 ;; Don't say "from root" if running under su.
;;;			 (and (equal (user-real-login-name) "root")
;;;			      (list "-f" (user-login-name)))
			 (and mail-alias-file
			      (list (concat "-oA" mail-alias-file)))
			 ;; These mean "report errors by mail"
			 ;; and "deliver in background".
			 (if (null mail-interactive) '("-oem" "-odb"))))
	  (if mail-interactive
	      (save-excursion
		(set-buffer errbuf)
		(goto-char (point-min))
		(while (re-search-forward "\n\n* *" nil t)
		  (replace-match "; "))
		(if (not (zerop (buffer-size)))
		    (error "Sending...failed to %s"
			   (buffer-substring (point-min) (point-max)))))))
      (kill-buffer tembuf)
      (if (bufferp errbuf)
	  (kill-buffer errbuf)))))
;;;
;;; lifted from sendmail.el --- mail sending commands for Emacs.

;; Copyright (C) 1985, 1986, 1992 Free Software Foundation, Inc.

;;; Commentary:

;; This mode provides mail-sending facilities from within Emacs.  It is
;; documented in the Emacs user's manual.

;;; Code:

;;;###autoload
(defvar mail-self-blind nil "\
Non-nil means insert BCC to self in messages to be sent.
This is done when the message is initialized,
so you can remove or alter the BCC field to override the default.")

;;;###autoload
(defvar mail-interactive nil "\
Non-nil means when sending a message wait for and display errors.
nil means let mailer mail back a message to report errors.")

;;;###autoload
(defvar mail-yank-ignored-headers "^via:\\|^mail-from:\\|^origin:\\|^status:\\|^remailed\\|^received:\\|^message-id:\\|^summary-line:\\|^to:\\|^subject:\\|^in-reply-to:\\|^return-path:" "\
Delete these headers from old message when it's inserted in a reply.")

;; Useful to set in site-init.el
;;;###autoload
(defvar qdnet-send-mail-function 'qdnet-sendmail-send-it "\
Function to call to send the current buffer as mail.
The headers are be delimited by a line which is `mail-header-separator'.")

;;;###autoload
(defvar mail-header-separator "--text follows this line--" "\
*Line used to separate headers from text in messages being composed.")

;;;###autoload
(defvar mail-archive-file-name nil "\
*Name of file to write all outgoing messages in, or nil for none.
Do not use an rmail file here!  Instead, use its inbox file.")

(defvar mail-default-reply-to nil
  "*Address to insert as default Reply-to field of outgoing messages.")

(defvar mail-alias-file nil
  "*If non-nil, the name of a file to use instead of `/usr/lib/aliases'.
This file defines aliases to be expanded by the mailer; this is a different
feature from that of defining aliases in `.mailrc' to be expanded in Emacs.
This variable has no effect unless your system uses sendmail as its mailer.")

(defvar mail-aliases t
  "Alist of mail address aliases,
or t meaning should be initialized from `~/.mailrc'.
The alias definitions in `~/.mailrc' have this form:
    alias ALIAS MEANING")

(defvar mail-yank-prefix nil
  "*Prefix insert on lines of yanked message being replied to.
nil means use indentation.")
(defvar mail-indentation-spaces 3
  "*Number of spaces to insert at the beginning of each cited line.
Used by `mail-yank-original' via `mail-yank-cite'.")
(defvar mail-yank-hooks nil
  "Obsolete hook for modifying a citation just inserted in the mail buffer.
Each hook function can find the citation between (point) and (mark t).
And each hook function should leave point and mark around the citation
text as modified.

This is a normal hook, misnamed for historical reasons.
It is semi-obsolete and mail agents should no longer use it.")

(defvar mail-citation-hook nil
  "*Hook for modifying a citation just inserted in the mail buffer.
Each hook function can find the citation between (point) and (mark t).
And each hook function should leave point and mark around the citation
text as modified.

If this hook is entirely empty (nil), a default action is taken
instead of no action.")

(defvar mail-abbrevs-loaded nil)
(defvar qdnet-mail-mode-map nil)

(autoload 'build-mail-aliases "mailalias"
  "Read mail aliases from `~/.mailrc' and set `mail-aliases'."
  nil)

(autoload 'expand-mail-aliases "mailalias"
  "Expand all mail aliases in suitable header fields found between BEG and END.
Suitable header fields are `To', `Cc' and `Bcc' and their `Resent-' variants.
Optional second arg EXCLUDE may be a regular expression defining text to be
removed from alias expansions."
  nil)

;;;###autoload
(defvar mail-signature nil
  "*Text inserted at end of mail buffer when a message is initialized.
If t, it means to insert the contents of the file `~/.signature'.")

(defvar mail-reply-buffer nil)
(defvar mail-send-actions nil
  "A list of actions to be performed upon successful sending of a message.")

(defvar mail-default-headers nil
  "*A string containing header lines, to be inserted in outgoing messages.
It is inserted before you edit the message,
so you can edit or delete these lines.")

(defvar mail-mode-syntax-table nil
  "Syntax table used while in mail mode.")

(if (null mail-mode-syntax-table)
    (progn
     (setq mail-mode-syntax-table (copy-syntax-table text-mode-syntax-table))
     (modify-syntax-entry ?% ". " mail-mode-syntax-table)))

(defun qdnet-mail-setup (to ngkeys regexp subject in-reply-to cc replybuffer actions)
  (if (eq mail-aliases t)
      (progn
	(setq mail-aliases nil)
	(if (file-exists-p "~/.mailrc")
	    (build-mail-aliases))))
  (setq mail-send-actions actions)
  (setq mail-reply-buffer replybuffer)
  (goto-char (point-min))
  (insert "To: **NET**")
  (save-excursion
    (if to
	;; Here removed code to extract names from within <...>
	;; on the assumption that mail-strip-quoted-names
	;; has been called and has done so.
	(let ((fill-prefix "\t")
	      (address-start (point)))
	  (insert to "\n")
	  (fill-region-as-paragraph address-start (point-max)))
      (newline))
    (if cc
	(let ((fill-prefix "\t")
	      (address-start (progn (insert "CC: ") (point))))
	  (insert cc "\n")
	  (fill-region-as-paragraph address-start (point-max))))
    (if in-reply-to
	(insert "In-reply-to: " in-reply-to "\n"))
    (insert "NewsGroups(keywords): " (or ngkeys "") "\n")
    (insert "Match(Regexp): " (or regexp "") "\n")
    (insert "Subject: " (or subject "") "\n")
    (if mail-default-headers
	(insert mail-default-headers))
    (if mail-default-reply-to
	(insert "Reply-to: " mail-default-reply-to "\n"))
    (if mail-self-blind
	(insert "BCC: " (user-login-name) "\n"))
    (if mail-archive-file-name
	(insert "FCC: " mail-archive-file-name "\n"))
    (insert mail-header-separator "\n")
    ;; Insert the signature.  But remember the beginning of the message.
    (if to (setq to (point)))
    (cond ((eq mail-signature t)
	   (if (file-exists-p "~/.signature")
	       (insert-file-contents "~/.signature")))
	  (mail-signature
	   (insert mail-signature)))
    (goto-char (point-max))
    (or (bolp) (newline)))
  (if to (goto-char to))
  (or ngkeys regexp to subject in-reply-to
      (set-buffer-modified-p nil))
  (run-hooks 'mail-setup-hook))

;;;###autoload
(defun qdnet-mail-mode ()
  "Major mode for editing mail to be sent to the NET.
Like Text Mode but with these additional commands:
C-c C-s  qdnet-mail-send (send the message)    C-c C-c  qdnet-mail-send-and-exit
C-c C-f  move to a header field (and create it if there isn't):
	 C-c C-f C-t  move to To:	C-c C-f C-s  move to Subj:
	 C-c C-f C-b  move to BCC:	C-c C-f C-c  move to CC:

    C-c C-f C-r  move to Match(Regexp):

Note: if what follows 'Match(Regexp):' is within quotes '\"' then
      an emacs lisp regular expression is expected. Other wise a
      boolean string with AND, OR, (, ) is expected and transformed
      to the corresponding elisp regexp.
      Example:  \"[e]*lisp\|\(Emacs[\ ]+lisp\)\"   is matched as is
               but
               (elisp OR (Emacs lisp)) AND 19
               is transformed into the regexp
               \"\\(elisp\\|\\(Emacs lisp\\)\\).*[\\n]*19\"

    C-c C-f C-n  move to NewsGroups(keywords):
Note: only keywords and not regexps are so far accepted.

C-c C-t  move to message text.
C-c C-y  mail-yank-original (insert current message, in Rmail).
C-c C-q  mail-fill-yanked-message (fill what was yanked).
C-c C-v  mail-sent-via (add a sent-via field for each To or CC)."
  (interactive)
  (kill-all-local-variables)
  (make-local-variable 'mail-reply-buffer)
  (setq mail-reply-buffer nil)
  (make-local-variable 'mail-send-actions)
  (set-syntax-table mail-mode-syntax-table)
  (use-local-map qdnet-mail-mode-map)
  (setq local-abbrev-table text-mode-abbrev-table)
  (setq major-mode 'qdnet-mail-mode)
  (setq mode-name "Mail")
  (setq buffer-offer-save t)
  (make-local-variable 'paragraph-separate)
  (make-local-variable 'paragraph-start)
  (setq paragraph-start (concat "^" mail-header-separator
				"$\\|^[ \t]*[-_][-_][-_]+$\\|"
				paragraph-start))
  (setq paragraph-separate (concat "^" mail-header-separator
				   "$\\|^[ \t]*[-_][-_][-_]+$\\|"
				   paragraph-separate))
  (run-hooks 'text-mode-hook 'mail-mode-hook))

;;; Set up keymap.

(if qdnet-mail-mode-map
    nil
  (setq qdnet-mail-mode-map (nconc (make-sparse-keymap) text-mode-map))
  (define-key qdnet-mail-mode-map "\C-c?" 'describe-mode)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-t" 'mail-to)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-b" 'mail-bcc)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-f" 'mail-fcc)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-c" 'mail-cc)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-s" 'mail-subject)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-r" 'mail-regexp)
  (define-key qdnet-mail-mode-map "\C-c\C-f\C-n" 'mail-ngroups)
  (define-key qdnet-mail-mode-map "\C-c\C-t" 'mail-text)
  (define-key qdnet-mail-mode-map "\C-c\C-y" 'mail-yank-original)
  (define-key qdnet-mail-mode-map "\C-c\C-q" 'mail-fill-yanked-message)
  (define-key qdnet-mail-mode-map "\C-c\C-w" 'mail-signature)
  (define-key qdnet-mail-mode-map "\C-c\C-v" 'mail-sent-via)
  (define-key qdnet-mail-mode-map "\C-c\C-c" 'qdnet-mail-send-and-exit)
  (define-key qdnet-mail-mode-map "\C-c\C-s" 'qdnet-mail-send))

(define-key qdnet-mail-mode-map [menu-bar mail]
  (cons "Mail" (make-sparse-keymap "Mail")))

(define-key qdnet-mail-mode-map [menu-bar mail fill]
  '("Fill Citation" . mail-fill-yanked-message))

(define-key qdnet-mail-mode-map [menu-bar mail yank]
  '("Cite Original" . mail-yank-original))

(define-key qdnet-mail-mode-map [menu-bar mail signature]
  '("Insert Signature" . mail-signature))

(define-key qdnet-mail-mode-map [menu-bar mail cancel]
  '("Cancel" . mail-dont-send))

(define-key qdnet-mail-mode-map [menu-bar mail send-stay]
  '("Send, Keep Editing" . qdnet-mail-send))

(define-key qdnet-mail-mode-map [menu-bar mail send]
  '("Send Message" . qdnet-mail-send-and-exit))

(define-key qdnet-mail-mode-map [menu-bar headers]
  (cons "Headers" (make-sparse-keymap "Headers")))

(define-key qdnet-mail-mode-map [menu-bar headers sent-via]
  '("Sent Via" . mail-sent-via))

(define-key qdnet-mail-mode-map [menu-bar headers text]
  '("Text" . mail-text))

(define-key qdnet-mail-mode-map [menu-bar headers bcc]
  '("Bcc" . mail-bcc))

(define-key qdnet-mail-mode-map [menu-bar headers fcc]
  '("Fcc" . mail-fcc))

(define-key qdnet-mail-mode-map [menu-bar headers cc]
  '("Cc" . mail-cc))

(define-key qdnet-mail-mode-map [menu-bar headers subject]
  '("Subject" . mail-subject))

(define-key qdnet-mail-mode-map [menu-bar headers to]
  '("To" . mail-to))

(define-key qdnet-mail-mode-map [menu-bar headers regexp]
  '("Match(Regexp)" . mail-regexp))

(define-key qdnet-mail-mode-map [menu-bar headers ngkeys]
  '("NewsGroups(keywords)" . mail-ngroups))

(defun qdnet-mail-send-and-exit (arg)
  "Send message like `qdnet-mail-send', then, if no errors, exit from mail buffer.
Prefix arg means don't delete this window."
  (interactive "P")
  (qdnet-mail-send)
  (mail-bury arg))

(defun mail-dont-send (arg)
  "Don't send the message you have been editing.
Prefix arg means don't delete this window."
  (interactive "P")
  (mail-bury arg))

(defun mail-bury (arg)
  "Bury this mail buffer."
  (let ((newbuf (other-buffer (current-buffer))))
    (bury-buffer (current-buffer))
    (if (and (fboundp 'frame-parameters)
	     (cdr (assq 'dedicated (frame-parameters)))
	     (not (null (delq (selected-frame) (visible-frame-list)))))
	(delete-frame (selected-frame))
      (if (and (not arg)
	       (not (one-window-p))
	       (save-excursion
		 (set-buffer (window-buffer (next-window (selected-window) 'not)))
		 (eq major-mode 'rmail-mode)))
	  (delete-window)
	(switch-to-buffer newbuf)))))

(defun qdnet-mail-send ()
  "Send the message in the current buffer.
If `mail-interactive' is non-nil, wait for success indication
or error messages, and inform user.
Otherwise any failure is reported in a message back to
the user from the mailer."
  (interactive)
  (if (if buffer-file-name
	  (y-or-n-p "Send buffer contents as mail message? ")
	(or (buffer-modified-p)
	    (y-or-n-p "Message already sent; resend? ")))
      (progn
	(message "Sending...")
	(run-hooks 'mail-send-hook)
	(funcall qdnet-send-mail-function)
	;; Now perform actions on successful sending.
	(while mail-send-actions
	  (condition-case nil
	      (apply (car (car mail-send-actions))
		     (cdr (car mail-send-actions)))
	    (error))
	  (setq mail-send-actions (cdr mail-send-actions)))
	(message "Sending...done")
	;; If buffer has no file, mark it as unmodified and delete autosave.
	(if (not buffer-file-name)
	    (progn
	      (set-buffer-modified-p nil)
	      (delete-auto-save-file-if-necessary t))))))

(defun qdnet-sendmail-send-it ()
;; Run gnus if there is no newsgroup buffer
  (let ((errbuf (if mail-interactive
		    (generate-new-buffer " sendmail errors")
		  0))
	(tembuf (generate-new-buffer " sendmail temp"))
	(case-fold-search nil)
	delimline
	(mailbuf (current-buffer)))
    (unwind-protect
	(save-excursion
	  (set-buffer tembuf)
	  (erase-buffer)
	  (insert-buffer-substring mailbuf)
	  (goto-char (point-max))
	  ;; require one newline at the end.
	  (or (= (preceding-char) ?\n)
	      (insert ?\n))
	  ;;***********************************************************
	  ;;      QdNet stuff
	  ;;
	  ;; Grab the list of email addresses
	  ;;
	  (goto-char (point-min))
	  (re-search-forward "NewsGroups(keywords):[\ \t]*\\(.*\\)\n")
	  (setq beg-News-field (match-beginning 0))
	  (copy-region-as-kill (match-beginning 1) (match-end 1))
	  (setq qdnet-group-keys (car kill-ring))
	  (if (re-search-forward "Match(Regexp):[\ \t]*\"\\(.*\\)\"\n" nil t)
	      (progn ;regexp in "quotes"
		(setq end-Match-field (match-end 0))
		(copy-region-as-kill (match-beginning 1) (match-end 1))
		(setq qdnet-regexp (car kill-ring)))
	    (progn  ;OR AND expression 
	      (goto-char (point-min))
	      (re-search-forward "Match(Regexp):[\ \t]*\\(.*\\)\n")
	      (setq end-Match-field (match-end 0))
	      (copy-region-as-kill (match-beginning 1) (match-end 1))
	      (setq qdnet-regexp (and-or-to-regexp (car kill-ring)))))
	    
	  (kill-region beg-News-field end-Match-field)
	  ;;
	  ;; grab the addresses
	  ;;
	  (setq qdnet-group-list (QdNet qdnet-group-keys qdnet-regexp t)
		qdnet-address-list QdNet-email-address-list)
	  ;;
	  ;; Change header-delimiter to be what sendmail expects.
	  (goto-char (point-min))
	  (re-search-forward
	   (concat "^" (regexp-quote mail-header-separator) "\n"))
	  (replace-match "\n")
	  (backward-char 1)
	  (setq delimline (point-marker))
	  (if mail-aliases
	      (expand-mail-aliases (point-min) delimline))
	  (goto-char (point-min))
	  ;; ignore any blank lines in the header
	  (while (and (re-search-forward "\n\n\n*" delimline t)
		      (< (point) delimline))
	    (replace-match "\n"))
	  (let ((case-fold-search t))
	    (goto-char (point-min))
	    (if (re-search-forward "^Sender:" delimline t)
		(error "Sender may not be specified."))
	    ;; Find and handle any FCC fields.
	    (goto-char (point-min))
	    (if (re-search-forward "^FCC:" delimline t)
		(qdnet-mail-do-fcc delimline))
	    ;; "S:" is an abbreviation for "Subject:".
	    (goto-char (point-min))
	    (if (re-search-forward "^S:" delimline t)
		(replace-match "Subject:"))
	    ;; Don't send out a blank subject line
	    (goto-char (point-min))
	    (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
		(replace-match ""))
	    (if mail-interactive
		(save-excursion
		  (set-buffer errbuf)
		  (erase-buffer))))
	  ;;
	  ;; Now just loop and send one message to each address...
	  (while qdnet-address-list
	    (goto-char (point-min))
	    (re-search-forward "^To: .*" delimline t)
	    (replace-match (concat "To: " 
				   (car qdnet-address-list)) t)
	    (apply 'call-process-region
		   (append (list (point-min) (point-max)
				 (if (boundp 'sendmail-program)
				     sendmail-program
				   "/usr/lib/sendmail")
				 nil errbuf nil
				 "-oi" "-t")
			   ;; Always specify who from,
			   ;; since some systems have broken sendmails.
			   (list "-f" (user-login-name))
			   (and mail-alias-file
				(list (concat "-oA" mail-alias-file)))
			   ;; These mean "report errors by mail"
			   ;; and "deliver in background".
			   (if (null mail-interactive) '("-oem" "-odb"))))
	    (if mail-interactive
		(save-excursion
		  (set-buffer errbuf)
		  (goto-char (point-min))
		  (while (re-search-forward "\n\n* *" nil t)
		    (replace-match "; "))
		  (if (not (zerop (buffer-size)))
		      (error "Sending...failed to %s"
			     (buffer-substring (point-min) (point-max))))))
	    (setq qdnet-address-list (cdr qdnet-address-list)))
	  (kill-buffer tembuf)
	  (if (bufferp errbuf)
	      (kill-buffer errbuf))))))

(defun qdnet-mail-do-fcc (header-end)
  (let (fcc-list
	(rmailbuf (current-buffer))
	(time (current-time))
	(tembuf (generate-new-buffer " rmail output"))
	(case-fold-search t))
    (save-excursion
      (goto-char (point-min))
      (while (re-search-forward "^FCC:[ \t]*" header-end t)
	(setq fcc-list (cons (buffer-substring (point)
					       (progn
						 (end-of-line)
						 (skip-chars-backward " \t")
						 (point)))
			     fcc-list))
	(delete-region (match-beginning 0)
		       (progn (forward-line 1) (point))))
      (set-buffer tembuf)
      (erase-buffer)
      ;; This initial newline is written out if the fcc file already exists.
      (insert "\nFrom " (user-login-name) " "
	      (current-time-string time) "\n")
      ;; Insert the time zone before the year.
      (forward-char -1)
      (forward-word -1)
      (require 'mail-utils)
      (insert (mail-rfc822-time-zone time) " ")
      (goto-char (point-max))
      (insert-buffer-substring rmailbuf)
      ;; Make sure messages are separated.
      (goto-char (point-max))
      (insert ?\n)
      (goto-char 2)
      ;; ``Quote'' "^From " as ">From "
      ;;  (note that this isn't really quoting, as there is no requirement
      ;;   that "^[>]+From " be quoted in the same transparent way.)
      (let ((case-fold-search nil))
	(while (search-forward "\nFrom " nil t)
	  (forward-char -5)
	  (insert ?>)))
      (while fcc-list
	(let ((buffer (get-file-buffer (car fcc-list))))
	  (if buffer
	      ;; File is present in a buffer => append to that buffer.
	      (let ((curbuf (current-buffer))
		    (beg (point-min)) (end (point-max))
		    (beg2 (save-excursion (goto-char (point-min))
					  (forward-line 2) (point))))
		(save-excursion
		  (set-buffer buffer)
		  ;; Keep the end of the accessible portion at the same place
		  ;; unless it is the end of the buffer.
		  (let ((max (if (/= (1+ (buffer-size)) (point-max))
				 (point-max))))
		    (unwind-protect
			;; Code below lifted from rmailout.el
			;; function rmail-output-to-rmail-file:
			(let ((buffer-read-only nil)
			      (msg (and (boundp 'rmail-current-message)
					rmail-current-message)))
			  ;; If MSG is non-nil, buffer is in RMAIL mode.
			  (if msg
			      (progn
				(rmail-maybe-set-message-counters)
				(widen)
				(narrow-to-region (point-max) (point-max))
				(insert "\C-l\n0, unseen,,\n*** EOOH ***\n"
					"From: " (user-login-name) "\n"
					"Date: " (mail-rfc822-date) "\n")
				(insert-buffer-substring curbuf beg2 end)
				(insert "\n\C-_")
				(goto-char (point-min))
				(widen)
				(search-backward "\n\^_")
				(narrow-to-region (point) (point-max))
				(rmail-count-new-messages t)
				(rmail-show-message msg)
				(setq max nil))
			    ;; Output file not in rmail mode
			    ;; => just insert at the end.
			    (narrow-to-region (point-min) (1+ (buffer-size)))
			    (goto-char (point-max))
			    (insert-buffer-substring curbuf beg end)))
		      (if max (narrow-to-region (point-min) max))))))
	    ;; Else append to the file directly.
	    (write-region
	     ;; Include a blank line before if file already exists.

	     (if (file-exists-p (car fcc-list)) (point-min) (1+ (point-min)))
	     (point-max) (car fcc-list) t)))
	(setq fcc-list (cdr fcc-list))))
    (kill-buffer tembuf)))

(defun mail-sent-via ()
  "Make a Sent-via header line from each To or CC header line."
  (interactive)
  (save-excursion
    (goto-char (point-min))
    ;; find the header-separator
    (search-forward (concat "\n" mail-header-separator "\n"))
    (forward-line -1)
    ;; put a marker at the end of the header
    (let ((end (point-marker))
	  (case-fold-search t)
	  to-line)
      (goto-char (point-min))
      ;; search for the To: lines and make Sent-via: lines from them
      ;; search for the next To: line
      (while (re-search-forward "^\\(to\\|cc\\):" end t)
	;; Grab this line plus all its continuations, sans the `to:'.
	(let ((to-line
	       (buffer-substring (point)
				 (progn
				   (if (re-search-forward "^[^ \t\n]" end t)
				       (backward-char 1)
				     (goto-char end))
				   (point)))))
	  ;; Insert a copy, with altered header field name.
	  (insert-before-markers "Sent-via:" to-line))))))

(defun mail-to ()
  "Move point to end of To-field."
  (interactive)
  (expand-abbrev)
  (qdnet-mail-position-on-field "To"))

(defun mail-regexp ()
  "Move point to end of Match(regexp)-field."
  (interactive)
  (expand-abbrev)
  (qdnet-mail-position-on-field "Match(Regexp)"))

(defun mail-ngroups ()
  "Move point to end of ngroups-field."
  (interactive)
  (expand-abbrev)
  (qdnet-mail-position-on-field "NewsGroups(keywords)"))

(defun mail-subject ()
  "Move point to end of Subject-field."
  (interactive)
  (expand-abbrev)
  (qdnet-mail-position-on-field "Subject"))

(defun mail-cc ()
  "Move point to end of CC-field.  Create a CC field if none."
  (interactive)
  (expand-abbrev)
  (or (qdnet-mail-position-on-field "cc" t)
      (progn (qdnet-mail-position-on-field "to")
	     (insert "\nCC: "))))

(defun mail-bcc ()
  "Move point to end of BCC-field.  Create a BCC field if none."
  (interactive)
  (expand-abbrev)
  (or (qdnet-mail-position-on-field "bcc" t)
      (progn (qdnet-mail-position-on-field "to")
	     (insert "\nBCC: "))))

(defun mail-fcc ()
  "Add a new FCC field, with file name completion."
  (interactive)
  (expand-abbrev)
  (or (qdnet-mail-position-on-field "fcc" t)	;Put new field after exiting FCC.
      (qdnet-mail-position-on-field "to"))
  (insert "\nFCC: " (read-file-name "Folder carbon copy: ")))

(defun qdnet-mail-position-on-field (field &optional soft)
  (let (end
	(case-fold-search t))
    (goto-char (point-min))
    (re-search-forward (concat "^" (regexp-quote mail-header-separator) "\n"))
    (setq end (match-beginning 0))
    (goto-char (point-min))
    (if (re-search-forward (concat "^" (regexp-quote field) ":") end t)
	(progn
	  (re-search-forward "^[^ \t]" nil 'move)
	  (beginning-of-line)
	  (skip-chars-backward "\n")
	  t)
      (or soft
	  (progn (goto-char end)
		 (insert field ": \n")
		 (skip-chars-backward "\n")))
      nil)))

(defun mail-text ()
  "Move point to beginning of text field."
  (interactive)
  (goto-char (point-min))
  (search-forward (concat "\n" mail-header-separator "\n")))

(defun mail-signature (atpoint)
  "Sign letter with contents of `mail-signature-file'."
  (interactive "P")
  (save-excursion
    (or atpoint
	(goto-char (point-max)))
    (skip-chars-backward " \t\n")
    (end-of-line)
    (or atpoint
	(delete-region (point) (point-max)))
    (insert "\n\n")
    (insert-file-contents (expand-file-name "~/.signature"))))

(defun mail-fill-yanked-message (&optional justifyp)
  "Fill the paragraphs of a message yanked into this one.
Numeric argument means justify as well."
  (interactive "P")
  (save-excursion
    (goto-char (point-min))
    (search-forward (concat "\n" mail-header-separator "\n") nil t)
    (fill-individual-paragraphs (point)
				(point-max)
				justifyp
				t)))

(defun mail-indent-citation ()
  "Modify text just inserted from a message to be cited.
The inserted text should be the region.
When this function returns, the region is again around the modified text.

Normally, indent each nonblank line `mail-indentation-spaces' spaces.
However, if `mail-yank-prefix' is non-nil, insert that prefix on each line."
  (let ((start (point)))
    (mail-yank-clear-headers start (mark t))
    (if (null mail-yank-prefix)
	(indent-rigidly start (mark t) mail-indentation-spaces)
      (save-excursion
	(goto-char start)
	(while (< (point) (mark t))
	  (insert mail-yank-prefix)
	  (forward-line 1))))))

(defun mail-yank-original (arg)
  "Insert the message being replied to, if any (in rmail).
Puts point before the text and mark after.
Normally, indents each nonblank line ARG spaces (default 3).
However, if `mail-yank-prefix' is non-nil, insert that prefix on each line.

Just \\[universal-argument] as argument means don't indent, insert no prefix,
and don't delete any header fields."
  (interactive "P")
  (if mail-reply-buffer
      (let ((start (point)))
	;; If the original message is in another window in the same frame,
	;; delete that window to save screen space.
	;; t means don't alter other frames.
	(delete-windows-on mail-reply-buffer t)
	(insert-buffer mail-reply-buffer)
	(if (consp arg)
	    nil
	  (goto-char start)
	  (let ((mail-indentation-spaces (if arg (prefix-numeric-value arg)
					   mail-indentation-spaces)))
	    (if mail-citation-hook
		(run-hooks 'mail-citation-hook)
	      (if mail-yank-hooks
		  (run-hooks 'mail-yank-hooks)
		(mail-indent-citation)))))
	;; This is like exchange-point-and-mark, but doesn't activate the mark.
	;; It is cleaner to avoid activation, even though the command
	;; loop would deactivate the mark because we inserted text.
	(goto-char (prog1 (mark t)
		     (set-marker (mark-marker) (point) (current-buffer))))
	(if (not (eolp)) (insert ?\n)))))

(defun mail-yank-clear-headers (start end)
  (save-excursion
    (goto-char start)
    (if (search-forward "\n\n" end t)
	(save-restriction
	  (narrow-to-region start (point))
	  (goto-char start)
	  (while (let ((case-fold-search t))
		   (re-search-forward mail-yank-ignored-headers nil t))
	    (beginning-of-line)
	    (delete-region (point)
			   (progn (re-search-forward "\n[^ \t]")
				  (forward-char -1)
				  (point))))))))

;; Put these last, to reduce chance of lossage from quitting in middle of loading the file.

;;;###autoload
(defun qdnet-mail (&optional noerase ngkeys regexp to subject in-reply-to cc replybuffer actions)
  "Edit a message to be sent.  Prefix arg means resume editing (don't erase).
When this function returns, the buffer `*qdnet-mail*' is selected.
The value is t if the message was newly initialized; otherwise, nil.

By default, the signature file `~/.signature' is inserted at the end;
see the variable `mail-signature'.

\\<qdnet-mail-mode-map>
While editing message, type \\[qdnet-mail-send-and-exit] to send the message and exit.

Various special commands starting with C-c are available in qdnet-sendmail mode
to move to message header fields:
\\{qdnet-mail-mode-map}

If `mail-self-blind' is non-nil, a BCC to yourself is inserted
when the message is initialized.

If `mail-default-reply-to' is non-nil, it should be an address (a string);
a Reply-to: field with that address is inserted.

If `mail-archive-file-name' is non-nil, an FCC field with that file name
is inserted.

If `mail-setup-hook' is bound, its value is called with no arguments
after the message is initialized.  It can add more default fields.

When calling from a program, the second through seventh arguments
 NGKEYS, REGEXP, TO, SUBJECT, IN-REPLY-TO and CC specify if non-nil
 the initial contents of those header fields.
 These arguments should not have final newlines.
The eigth argument REPLYBUFFER is a buffer whose contents
 should be yanked if the user types C-c C-y.
The seventh argument ACTIONS is a list of actions to take
 if/when the message is sent.  Each action looks like (FUNCTION . ARGS);
 when the message is sent, we apply FUNCTION to ARGS.
 This is how Rmail arranges to mark messages `answered'."
  (interactive "P")
  (switch-to-buffer "*qdnet-mail*")
  (setq default-directory (expand-file-name "~/"))
  (auto-save-mode auto-save-default)
  (qdnet-mail-mode)
  (let (initialized)
    (and (not noerase)
	 (or (not (buffer-modified-p))
	     (y-or-n-p "Unsent message being composed; erase it? "))
	 (progn (erase-buffer)
		(qdnet-mail-setup to ngkeys regexp subject in-reply-to cc replybuffer actions)
		(setq initialized t)))
    (if (and buffer-auto-save-file-name
	     (file-exists-p buffer-auto-save-file-name))
	(message "Auto save file for draft message exists; consider M-x mail-recover"))
    initialized))

(defun mail-recover ()
  "Reread contents of current buffer from its last auto-save file."
  (interactive)
  (let ((file-name (make-auto-save-file-name)))
    (cond ((save-window-excursion
	     (if (not (eq system-type 'vax-vms))
		 (with-output-to-temp-buffer "*Directory*"
		   (buffer-disable-undo standard-output)
		   (call-process "ls" nil standard-output nil "-l" file-name)))
	     (yes-or-no-p (format "Recover auto save file %s? " file-name)))
	   (let ((buffer-read-only nil))
	     (erase-buffer)
	     (insert-file-contents file-name nil)))
	  (t (error "mail-recover cancelled.")))))

;;;###autoload
(defun mail-other-window (&optional noerase to subject in-reply-to cc replybuffer sendactions)
  "Like `mail' command, but display mail buffer in another window."
  (interactive "P")
  (let ((pop-up-windows t))
    (pop-to-buffer "*mail*"))
  (mail noerase to subject in-reply-to cc replybuffer sendactions))

;;;###autoload
(defun mail-other-frame (&optional noerase to subject in-reply-to cc replybuffer sendactions)
  "Like `mail' command, but display mail buffer in another frame."
  (interactive "P")
  (let ((pop-up-frames t))
    (pop-to-buffer "*mail*"))
  (mail noerase to subject in-reply-to cc replybuffer sendactions))

;;; Do not execute these when sendmail.el is loaded,
;;; only in loaddefs.el.
;;;###autoload (define-key ctl-x-map "m" 'mail)
;;;###autoload (define-key ctl-x-4-map "m" 'mail-other-window)
;;;###autoload (define-key ctl-x-5-map "m" 'mail-other-frame)

;;; Do not add anything but external entries on this page.

(provide 'sendmail)

;;; sendmail.el ends here