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emacs/lisp/gnuspost.el
Richard M. Stallman 738f9104db (gnus-inews-news): Allow newsgroups to be separated 
by spaces or commas and spaces.
1994-07-03 22:16:34 +00:00

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;;; gnuspost.el --- post news commands for GNUS newsreader
;; Copyright (C) 1989, 1990, 1993, 1994 Free Software Foundation, Inc.
;; Author: Masanobu UMEDA <umerin@mse.kyutech.ac.jp>
;; Keywords: news
;; This file is part of GNU Emacs.
;; GNU Emacs is free 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 Emacs 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:
(require 'gnus)
(defvar gnus-organization-file "/usr/lib/news/organization"
"*Local news organization file.")
(defvar gnus-post-news-buffer "*post-news*")
(defvar gnus-winconf-post-news nil)
(autoload 'news-reply-mode "rnewspost")
(autoload 'timezone-make-date-arpa-standard "timezone")
;;; Post news commands of GNUS Group Mode and Summary Mode
(defun gnus-group-post-news ()
"Post an article."
(interactive)
;; Save window configuration.
(setq gnus-winconf-post-news (current-window-configuration))
(unwind-protect
(gnus-post-news)
(or (and (eq (current-buffer) (get-buffer gnus-post-news-buffer))
(not (zerop (buffer-size))))
;; Restore last window configuration.
(set-window-configuration gnus-winconf-post-news)))
;; We don't want to return to Summary buffer nor Article buffer later.
(if (get-buffer gnus-summary-buffer)
(bury-buffer gnus-summary-buffer))
(if (get-buffer gnus-article-buffer)
(bury-buffer gnus-article-buffer)))
(defun gnus-summary-post-news ()
"Post an article."
(interactive)
(gnus-summary-select-article t nil)
;; Save window configuration.
(setq gnus-winconf-post-news (current-window-configuration))
(unwind-protect
(progn
(switch-to-buffer gnus-article-buffer)
(widen)
(delete-other-windows)
(gnus-post-news))
(or (and (eq (current-buffer) (get-buffer gnus-post-news-buffer))
(not (zerop (buffer-size))))
;; Restore last window configuration.
(set-window-configuration gnus-winconf-post-news)))
;; We don't want to return to Article buffer later.
(bury-buffer gnus-article-buffer))
(defun gnus-summary-followup (yank)
"Post a reply article.
If prefix argument YANK is non-nil, original article is yanked automatically."
(interactive "P")
(gnus-summary-select-article t nil)
;; Check Followup-To: poster.
(set-buffer gnus-article-buffer)
(if (and gnus-use-followup-to
(string-equal "poster" (gnus-fetch-field "followup-to"))
(or (not (eq gnus-use-followup-to t))
(not (y-or-n-p "Do you want to ignore `Followup-To: poster'? "))))
;; Mail to the poster. GNUS is now RFC1036 compliant.
(gnus-summary-reply yank)
;; Save window configuration.
(setq gnus-winconf-post-news (current-window-configuration))
(unwind-protect
(progn
(switch-to-buffer gnus-article-buffer)
(widen)
(delete-other-windows)
(gnus-news-reply yank))
(or (and (eq (current-buffer) (get-buffer gnus-post-news-buffer))
(not (zerop (buffer-size))))
;; Restore last window configuration.
(set-window-configuration gnus-winconf-post-news)))
;; We don't want to return to Article buffer later.
(bury-buffer gnus-article-buffer)))
(defun gnus-summary-followup-with-original ()
"Post a reply article with original article."
(interactive)
(gnus-summary-followup t))
(defun gnus-summary-cancel-article ()
"Cancel an article you posted."
(interactive)
(gnus-summary-select-article t nil)
(gnus-eval-in-buffer-window gnus-article-buffer
(gnus-cancel-news)))
;;; Post a News using NNTP
;;;###autoload
(fset 'sendnews 'gnus-post-news)
;;;###autoload
(fset 'postnews 'gnus-post-news)
;;;###autoload
(defun gnus-post-news ()
"Begin editing a new USENET news article to be posted.
Type \\[describe-mode] once editing the article to get a list of commands."
(interactive)
(if (or (not gnus-novice-user)
(y-or-n-p "Are you sure you want to post to all of USENET? "))
(let ((artbuf (current-buffer))
(newsgroups ;Default newsgroup.
(if (eq major-mode 'gnus-article-mode) gnus-newsgroup-name))
(subject nil)
;; Get default distribution.
(distribution (car gnus-local-distributions))
(followup-to nil))
;; Connect to NNTP server if not connected yet, and get
;; several information.
(if (not (gnus-server-opened))
(progn
(gnus-start-news-server t) ;Confirm server.
(gnus-setup-news)))
;; Get current article information.
(save-restriction
(and (not (zerop (buffer-size)))
;;(equal major-mode 'news-mode)
(equal major-mode 'gnus-article-mode)
(progn
;;(news-show-all-headers)
(gnus-article-show-all-headers)
(narrow-to-region (point-min)
(progn (goto-char (point-min))
(search-forward "\n\n")
(point)))))
(setq news-reply-yank-from (mail-fetch-field "from"))
(setq news-reply-yank-message-id (mail-fetch-field "message-id")))
(pop-to-buffer gnus-post-news-buffer)
(news-reply-mode)
(gnus-overload-functions)
(if (and (buffer-modified-p)
(> (buffer-size) 0)
(not (y-or-n-p "Unsent article being composed; erase it? ")))
;; Continue composition.
;; Make news-reply-yank-original work on the current article.
(setq mail-reply-buffer artbuf)
(erase-buffer)
(if gnus-interactive-post
;; Newsgroups, subject and distribution are asked for.
;; Suggested by yuki@flab.fujitsu.junet.
(progn
;; Subscribed newsgroup names are required for
;; completing read of newsgroup.
(or gnus-newsrc-assoc
(gnus-read-newsrc-file))
;; Which do you like? (UMERIN)
;; (setq newsgroups (read-string "Newsgroups: " "general"))
(or newsgroups ;Use the default newsgroup.
(let (group)
(while (not
(string=
(setq group
(completing-read "Newsgroup: "
gnus-newsrc-assoc
nil 'require-match))
""))
(or followup-to (setq followup-to group))
(if newsgroups
(setq newsgroups (concat newsgroups "," group))
(setq newsgroups group)))))
(setq subject (read-string "Subject: "))
;; Choose a distribution from gnus-distribution-list.
;; completing-read should not be used with
;; 'require-match functionality in order to allow use
;; of unknow distribution.
(gnus-read-distributions-file)
(setq distribution
(if (consp gnus-distribution-list)
(completing-read "Distribution: "
gnus-distribution-list
nil nil ;Never 'require-match
distribution ;Default distribution.
)
(read-string "Distribution: ")))
;; Empty string is okay.
;;(if (string-equal distribution "")
;; (setq distribution nil))
))
(news-setup () subject () newsgroups artbuf)
;; Make sure the article is posted by GNUS.
;;(mail-position-on-field "Posting-Software")
;;(insert "GNUS: NNTP-based News Reader for GNU Emacs")
;; Insert Distribution: field.
;; Suggested by ichikawa@flab.fujitsu.junet.
(mail-position-on-field "Distribution")
(insert (or distribution ""))
;; Add Followup-To header
(if followup-to
(progn
(mail-position-on-field "Followup-To")
(insert followup-to)))
;; Handle author copy using FCC field.
(if gnus-author-copy
(progn
(mail-position-on-field "FCC")
(insert gnus-author-copy)))
(if gnus-interactive-post
;; All fields are filled in.
(goto-char (point-max))
;; Move point to Newsgroup: field.
(goto-char (point-min))
(end-of-line))
))
(message "")))
(defun gnus-news-reply (&optional yank)
"Compose and post a reply (aka a followup) to the current article on USENET.
While composing the followup, use \\[news-reply-yank-original] to yank the
original message into it."
(interactive)
(if (or (not gnus-novice-user)
(y-or-n-p "Are you sure you want to followup to all of USENET? "))
(let (from cc subject date to followup-to newsgroups message-of
references distribution message-id
(artbuf (current-buffer)))
(save-restriction
(and (not (zerop (buffer-size)))
;;(equal major-mode 'news-mode)
(equal major-mode 'gnus-article-mode)
(progn
;; (news-show-all-headers)
(gnus-article-show-all-headers)
(narrow-to-region (point-min)
(progn (goto-char (point-min))
(search-forward "\n\n")
(point)))))
(setq from (mail-fetch-field "from"))
;; Get reply-to working corrrectly for gnus-auto-mail-to-author (jpm)
(setq reply-to (mail-fetch-field "reply-to"))
(setq news-reply-yank-from from)
(setq subject (mail-fetch-field "subject"))
(setq date (mail-fetch-field "date"))
(setq followup-to (mail-fetch-field "followup-to"))
;; Ignore Followup-To: poster.
(if (or (null gnus-use-followup-to) ;Ignore followup-to: field.
(string-equal "" followup-to) ;Bogus header.
(string-equal "poster" followup-to))
(setq followup-to nil))
(setq newsgroups (or followup-to (mail-fetch-field "newsgroups")))
(setq references (mail-fetch-field "references"))
(setq distribution (mail-fetch-field "distribution"))
(setq message-id (mail-fetch-field "message-id"))
(setq news-reply-yank-message-id message-id))
(pop-to-buffer gnus-post-news-buffer)
(news-reply-mode)
(gnus-overload-functions)
(if (and (buffer-modified-p)
(> (buffer-size) 0)
(not (y-or-n-p "Unsent article being composed; erase it? ")))
;; Continue composition.
;; Make news-reply-yank-original work on current article.
(setq mail-reply-buffer artbuf)
(erase-buffer)
(and subject
(setq subject
(concat "Re: " (gnus-simplify-subject subject 're-only))))
(and from
(progn
(let ((stop-pos
(string-match " *at \\| *@ \\| *(\\| *<" from)))
(setq message-of
(concat
(if stop-pos (substring from 0 stop-pos) from)
"'s message of "
date)))))
(news-setup nil subject message-of newsgroups artbuf)
(if followup-to
(progn (news-reply-followup-to)
(insert followup-to)))
;; Fold long references line to follow RFC1036.
(mail-position-on-field "References")
(let ((begin (point))
(fill-column 79)
(fill-prefix "\t"))
(if references
(insert references))
(if (and references message-id)
(insert " "))
(if message-id
(insert message-id))
;; The region must end with a newline to fill the region
;; without inserting extra newline.
(fill-region-as-paragraph begin (1+ (point))))
;; Make sure the article is posted by GNUS.
;;(mail-position-on-field "Posting-Software")
;;(insert "GNUS: NNTP-based News Reader for GNU Emacs")
;; Distribution must be the same as original article.
(mail-position-on-field "Distribution")
(insert (or distribution ""))
;; Handle author copy using FCC field.
(if gnus-author-copy
(progn
(mail-position-on-field "FCC")
(insert gnus-author-copy)))
;; Insert To: FROM field, which is expected to mail the
;; message to the author of the article too. Use Reply-To
;; field like gnus-mail-reply-using-m* (jpm).
(if (and gnus-auto-mail-to-author (or reply-to from))
(progn
(goto-char (point-min))
(insert "To: " (or reply-to from) "\n")))
(goto-char (point-max)))
;; Yank original article automatically.
(if yank
(let ((last (point)))
;;(goto-char (point-max))
;; Insert at current point.
(news-reply-yank-original nil)
(goto-char last)))
)
(message "")))
(defun gnus-inews-news ()
"Send a news message."
(interactive)
(let* ((case-fold-search nil)
(server-running (gnus-server-opened)))
(save-excursion
;; Connect to default NNTP server if necessary.
;; Suggested by yuki@flab.fujitsu.junet.
(gnus-start-news-server) ;Use default server.
;; NNTP server must be opened before current buffer is modified.
(widen)
(goto-char (point-min))
(run-hooks 'news-inews-hook)
(save-restriction
(narrow-to-region
(point-min)
(progn
(goto-char (point-min))
(search-forward (concat "\n" mail-header-separator "\n"))
(point)))
;; Correct newsgroups field: change sequence of spaces to comma and
;; eliminate spaces around commas. Eliminate imbedded line breaks.
(goto-char (point-min))
(if (search-forward-regexp "^Newsgroups: +" nil t)
(save-restriction
(narrow-to-region
(point)
(if (re-search-forward "^[^ \t]" nil 'end)
(match-beginning 0)
(point-max)))
(goto-char (point-min))
(replace-regexp "\n[ \t]+" " ") ;No line breaks (too confusing)
(goto-char (point-min))
(replace-regexp "[ \t\n]*,[ \t\n]*\\|[ \t]+" ",")
))
;; Mail the message too if To: or Cc: exists.
(if (or (mail-fetch-field "to" nil t)
(mail-fetch-field "cc" nil t))
(if gnus-mail-send-method
(progn
(message "Sending via mail...")
(widen)
(funcall gnus-mail-send-method)
(message "Sending via mail... done"))
(ding)
(message "No mailer defined. To: and/or Cc: fields ignored.")
(sit-for 1))))
;; Send to NNTP server.
(message "Posting to USENET...")
(if (gnus-inews-article)
(message "Posting to USENET... done")
;; We cannot signal an error.
(ding) (message "Article rejected: %s" (gnus-status-message)))
(set-buffer-modified-p nil))
;; If NNTP server is opened by gnus-inews-news, close it by myself.
(or server-running
(gnus-close-server))
(and (fboundp 'bury-buffer) (bury-buffer))
;; Restore last window configuration.
(and gnus-winconf-post-news
(set-window-configuration gnus-winconf-post-news))
(setq gnus-winconf-post-news nil)
))
(defun gnus-cancel-news ()
"Cancel an article you posted."
(interactive)
(if (yes-or-no-p "Do you really want to cancel this article? ")
(let ((from nil)
(newsgroups nil)
(message-id nil)
(distribution nil))
(save-excursion
;; Get header info. from original article.
(save-restriction
(gnus-article-show-all-headers)
(goto-char (point-min))
(search-forward "\n\n" nil 'move)
(narrow-to-region (point-min) (point))
(setq from (mail-fetch-field "from"))
(setq newsgroups (mail-fetch-field "newsgroups"))
(setq message-id (mail-fetch-field "message-id"))
(setq distribution (mail-fetch-field "distribution")))
;; Verify if the article is absolutely user's by comparing
;; user id with value of its From: field.
(if (not
(string-equal
(downcase (mail-strip-quoted-names from))
(downcase (mail-strip-quoted-names (gnus-inews-user-name)))))
(progn
(ding) (message "This article is not yours."))
;; Make control article.
(set-buffer (get-buffer-create " *GNUS-canceling*"))
(buffer-flush-undo (current-buffer))
(erase-buffer)
(insert "Newsgroups: " newsgroups "\n"
"Subject: cancel " message-id "\n"
"Control: cancel " message-id "\n"
;; We should not use the first value of
;; `gnus-distribution-list' as default value,
;; because distribution must be as same as original
;; article.
"Distribution: " (or distribution "") "\n"
mail-header-separator "\n"
)
;; Send the control article to NNTP server.
(message "Canceling your article...")
(if (gnus-inews-article)
(message "Canceling your article... done")
(ding) (message "Failed to cancel your article"))
;; Kill the article buffer.
(kill-buffer (current-buffer))
)))
))
;;; Lowlevel inews interface
(defun gnus-inews-article ()
"Post an article in current buffer using NNTP protocol."
(let ((artbuf (current-buffer))
(tmpbuf (get-buffer-create " *GNUS-posting*")))
(save-excursion
(set-buffer tmpbuf)
(buffer-flush-undo (current-buffer))
(erase-buffer)
(insert-buffer-substring artbuf)
;; Remove the header separator.
(goto-char (point-min))
(search-forward (concat "\n" mail-header-separator "\n"))
(replace-match "\n\n")
(goto-char (point-max))
;; require a newline at the end for inews to append .signature to
(or (= (preceding-char) ?\n)
(insert ?\n))
;; This hook may insert a signature.
(run-hooks 'gnus-prepare-article-hook)
;; Prepare article headers. All message body such as signature
;; must be inserted before Lines: field is prepared.
(save-restriction
(goto-char (point-min))
(search-forward "\n\n")
(narrow-to-region (point-min) (point))
(gnus-inews-insert-headers))
;; Run final inews hooks. This hook may do FCC.
;; The article must be saved before being posted because
;; `gnus-request-post' modifies the buffer.
(run-hooks 'gnus-inews-article-hook)
;; Post an article to NNTP server.
;; Return NIL if post failed.
(prog1
(gnus-request-post)
(kill-buffer (current-buffer)))
)))
(defun gnus-inews-insert-headers ()
"Prepare article headers.
Fields already prepared in the buffer are not modified.
Fields in gnus-required-headers will be generated."
(save-excursion
(let ((date (gnus-inews-date))
(message-id (gnus-inews-message-id))
(organization (gnus-inews-organization)))
(goto-char (point-min))
(or (mail-fetch-field "path")
(and (memq 'Path gnus-required-headers)
(insert "Path: " (gnus-inews-path) "\n")))
(or (mail-fetch-field "from")
(and (memq 'From gnus-required-headers)
(insert "From: " (gnus-inews-user-name) "\n")))
;; If there is no subject, make Subject: field.
(or (mail-fetch-field "subject")
(and (memq 'Subject gnus-required-headers)
(insert "Subject: \n")))
;; If there is no newsgroups, make Newsgroups: field.
(or (mail-fetch-field "newsgroups")
(and (memq 'Newsgroups gnus-required-headers)
(insert "Newsgroups: \n")))
(or (mail-fetch-field "message-id")
(and message-id
(memq 'Message-ID gnus-required-headers)
(insert "Message-ID: " message-id "\n")))
(or (mail-fetch-field "date")
(and date
(memq 'Date gnus-required-headers)
(insert "Date: " date "\n")))
;; Optional fields in RFC977 and RFC1036
(or (mail-fetch-field "organization")
(and organization
(memq 'Organization gnus-required-headers)
(let ((begin (point))
(fill-column 79)
(fill-prefix "\t"))
(insert "Organization: " organization "\n")
(fill-region-as-paragraph begin (point)))))
(or (mail-fetch-field "distribution")
(and (memq 'Distribution gnus-required-headers)
(insert "Distribution: \n")))
(or (mail-fetch-field "lines")
(and (memq 'Lines gnus-required-headers)
(insert "Lines: " (gnus-inews-lines) "\n")))
)))
;; Utility functions.
(defun gnus-inews-insert-signature ()
"Insert signature file in current article buffer.
If there is a file named .signature-DISTRIBUTION, it is used instead
of usual .signature when the distribution of the article is
DISTRIBUTION. Set the variable to nil to prevent appending the
signature file automatically.
Signature file is specified by the variable gnus-signature-file."
(save-excursion
(save-restriction
;; Change signature file by distribution.
;; Suggested by hyoko@flab.fujitsu.co.jp.
(let ((signature
(if gnus-signature-file
(expand-file-name gnus-signature-file nil)))
(distribution nil))
(goto-char (point-min))
(search-forward "\n\n")
(narrow-to-region (point-min) (point))
(setq distribution (mail-fetch-field "distribution"))
(widen)
(if signature
(progn
(if (file-exists-p (concat signature "-" distribution))
(setq signature (concat signature "-" distribution)))
;; Insert signature.
(if (file-exists-p signature)
(progn
(goto-char (point-max))
(insert "--\n")
(insert-file-contents signature)))
))))))
(defun gnus-inews-do-fcc ()
"Process FCC: fields in current article buffer.
Unless the first character of the field is `|', the article is saved
to the specified file using the function specified by the variable
gnus-author-copy-saver. The default function rmail-output saves in
Unix mailbox format.
If the first character is `|', the contents of the article is send to
a program specified by the rest of the value."
(let ((fcc-list nil)
(fcc-file nil)
(case-fold-search t)) ;Should ignore case.
(save-excursion
(save-restriction
(goto-char (point-min))
(search-forward "\n\n")
(narrow-to-region (point-min) (point))
(goto-char (point-min))
(while (re-search-forward "^FCC:[ \t]*" nil 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))))
;; Process FCC operations.
(widen)
(while fcc-list
(setq fcc-file (car fcc-list))
(setq fcc-list (cdr fcc-list))
(cond ((string-match "^[ \t]*|[ \t]*\\(.*\\)[ \t]*$" fcc-file)
(let ((program (substring fcc-file
(match-beginning 1) (match-end 1))))
;; Suggested by yuki@flab.fujitsu.junet.
;; Send article to named program.
(call-process-region (point-min) (point-max) shell-file-name
nil nil nil "-c" program)
))
(t
;; Suggested by hyoko@flab.fujitsu.junet.
;; Save article in Unix mail format by default.
(if (and gnus-author-copy-saver
(not (eq gnus-author-copy-saver 'rmail-output)))
(funcall gnus-author-copy-saver fcc-file)
(if (and (file-readable-p fcc-file) (rmail-file-p fcc-file))
(gnus-output-to-rmail fcc-file)
(rmail-output fcc-file 1 t t)))
))
)
))
))
(defun gnus-inews-path ()
"Return uucp path."
(let ((login-name (gnus-inews-login-name)))
(cond ((null gnus-use-generic-path)
(concat gnus-nntp-server "!" login-name))
((stringp gnus-use-generic-path)
;; Support GENERICPATH. Suggested by vixie@decwrl.dec.com.
(concat gnus-use-generic-path "!" login-name))
(t login-name))
))
(defun gnus-inews-user-name ()
"Return user's network address as `NAME@DOMAIN (FULLNAME)'."
(let ((full-name (gnus-inews-full-name)))
(concat (if (or gnus-user-login-name gnus-use-generic-from
gnus-local-domain (getenv "DOMAINNAME"))
(concat (gnus-inews-login-name) "@"
(gnus-inews-domain-name gnus-use-generic-from))
user-mail-address)
;; User's full name.
(cond ((string-equal full-name "") "")
((string-equal full-name "&") ;Unix hack.
(concat " (" login-name ")"))
(t
(concat " (" full-name ")")))
)))
(defun gnus-inews-login-name ()
"Return user login name.
Got from the variable `gnus-user-login-name' and the function
`user-login-name'."
(or gnus-user-login-name (user-login-name)))
(defun gnus-inews-full-name ()
"Return user full name.
Got from the variable `gnus-user-full-name', the environment variable
NAME, and the function `user-full-name'."
(or gnus-user-full-name
(getenv "NAME") (user-full-name)))
(defun gnus-inews-domain-name (&optional genericfrom)
"Return user's domain name.
If optional argument GENERICFROM is a string, use it as the domain
name; if it is non-nil, strip of local host name from the domain name.
If the function `system-name' returns full internet name and the
domain is undefined, the domain name is got from it."
(and (null gnus-local-domain)
(boundp 'gnus-your-domain)
(setq gnus-local-domain gnus-your-domain))
(if (or genericfrom gnus-local-domain (getenv "DOMAINNAME"))
(let ((domain (or (if (stringp genericfrom) genericfrom)
(getenv "DOMAINNAME")
gnus-local-domain
;; Function `system-name' may return full internet name.
;; Suggested by Mike DeCorte <mrd@sun.soe.clarkson.edu>.
(if (string-match "\\." (system-name))
(substring (system-name) (match-end 0)))
(read-string "Domain name (no host): ")))
(host (or (if (string-match "\\." (system-name))
(substring (system-name) 0 (match-beginning 0)))
(system-name))))
(if (string-equal "." (substring domain 0 1))
(setq domain (substring domain 1)))
;; Support GENERICFROM as same as standard Bnews system.
;; Suggested by ohm@kaba.junet and vixie@decwrl.dec.com.
(cond ((null genericfrom)
(concat host "." domain))
;;((stringp genericfrom) genericfrom)
(t domain)))
(substring user-mail-address (1+ (string-match "@" user-mail-address)))))
(defun gnus-inews-message-id ()
"Generate unique Message-ID for user."
;; Message-ID should not contain a slash and should be terminated by
;; a number. I don't know the reason why it is so.
(concat "<" (gnus-inews-unique-id) "@" (gnus-inews-domain-name) ">"))
(defun gnus-inews-unique-id ()
"Generate unique ID from user name and current time."
(let ((date (current-time-string))
(name (gnus-inews-login-name)))
(if (string-match "^[^ ]+ \\([^ ]+\\)[ ]+\\([0-9]+\\) \\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\) [0-9][0-9]\\([0-9][0-9]\\)"
date)
(concat (upcase name) "."
(substring date (match-beginning 6) (match-end 6)) ;Year
(substring date (match-beginning 1) (match-end 1)) ;Month
(substring date (match-beginning 2) (match-end 2)) ;Day
(substring date (match-beginning 3) (match-end 3)) ;Hour
(substring date (match-beginning 4) (match-end 4)) ;Minute
(substring date (match-beginning 5) (match-end 5)) ;Second
)
(error "Cannot understand current-time-string: %s." date))
))
(defun gnus-current-time-zone (time)
"The local time zone in effect at TIME, or nil if not known."
(let ((z (and (fboundp 'current-time-zone) (current-time-zone time))))
(if (and z (car z)) z gnus-local-timezone)))
(defun gnus-inews-date ()
"Date string of today.
If `current-time-zone' works, or if `gnus-local-timezone' is set correctly,
this yields a date that conforms to RFC 822. Otherwise a buggy date will
be generated; this might work with some older news servers."
(let* ((now (and (fboundp 'current-time) (current-time)))
(zone (gnus-current-time-zone now)))
(if zone
(gnus-inews-valid-date now zone)
;; No timezone info.
(gnus-inews-buggy-date now))))
(defun gnus-inews-valid-date (&optional time zone)
"A date string that represents TIME and conforms to the Usenet standard.
TIME is optional and defaults to the current time.
Some older versions of Emacs always act as if TIME is nil.
The optional argument ZONE specifies the local time zone (default GMT)."
(timezone-make-date-arpa-standard
(if (fboundp 'current-time)
(current-time-string time)
(current-time-string))
zone "GMT"))
(defun gnus-inews-buggy-date (&optional time)
"A buggy date string that represents TIME.
TIME is optional and defaults to the current time.
Some older versions of Emacs always act as if TIME is nil."
(let ((date (if (fboundp 'current-time)
(current-time-string time)
(current-time-string))))
(if (string-match "^[^ ]+ \\([^ ]+\\)[ ]+\\([0-9]+\\) \\([0-9:]+\\) [0-9][0-9]\\([0-9][0-9]\\)"
date)
(concat (substring date (match-beginning 2) (match-end 2)) ;Day
" "
(substring date (match-beginning 1) (match-end 1)) ;Month
" "
(substring date (match-beginning 4) (match-end 4)) ;Year
" "
(substring date (match-beginning 3) (match-end 3))) ;Time
(error "Cannot understand current-time-string: %s." date))
))
(defun gnus-inews-organization ()
"Return user's organization.
The ORGANIZATION environment variable is used if defined.
If not, the variable gnus-local-organization is used instead.
If the value begins with a slash, it is taken as the name of a file
containing the organization."
;; The organization must be got in this order since the ORGANIZATION
;; environment variable is intended for user specific while
;; gnus-local-organization is for machine or organization specific.
;; Note: compatibility hack. This will be removed in the next version.
(and (null gnus-local-organization)
(boundp 'gnus-your-organization)
(setq gnus-local-organization gnus-your-organization))
;; End of compatibility hack.
(let* ((private-file (expand-file-name "~/.organization" nil))
(organization (or (getenv "ORGANIZATION")
gnus-local-organization
private-file)))
(and (stringp organization)
(> (length organization) 0)
(string-equal (substring organization 0 1) "/")
;; Get it from the user and system file.
;; Suggested by roland@wheaties.ai.mit.edu (Roland McGrath).
(let ((dist (mail-fetch-field "distribution")))
(setq organization
(cond ((file-exists-p (concat organization "-" dist))
(concat organization "-" dist))
((file-exists-p organization) organization)
((file-exists-p gnus-organization-file)
gnus-organization-file)
(t organization)))
))
(cond ((not (stringp organization)) nil)
((and (string-equal (substring organization 0 1) "/")
(file-exists-p organization))
;; If the first character is `/', assume it is the name of
;; a file containing the organization.
(save-excursion
(let ((tmpbuf (get-buffer-create " *GNUS organization*")))
(set-buffer tmpbuf)
(erase-buffer)
(insert-file-contents organization)
(prog1 (buffer-string)
(kill-buffer tmpbuf))
)))
((string-equal organization private-file) nil) ;No such file
(t organization))
))
(defun gnus-inews-lines ()
"Count the number of lines and return numeric string."
(save-excursion
(save-restriction
(widen)
(goto-char (point-min))
(search-forward "\n\n" nil 'move)
(int-to-string (count-lines (point) (point-max))))))
(provide 'gnuspost)
;;; gnuspost.el ends here
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