;;; gnus-logic.el --- advanced scoring code for Gnus
-;; Copyright (C) 1996 Free Software Foundation, Inc.
-;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
+;; Copyright (C) 1996-2013 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; the Free Software Foundation, either version 3 of the License, 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
;; 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, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
-(require 'gnus-load)
+(eval-when-compile (require 'cl))
+
+(require 'gnus)
(require 'gnus-score)
(require 'gnus-util)
-;;; Internal variables.
+;;; Internal variables.
(defvar gnus-advanced-headers nil)
-;; To avoid having 8-bit charaters in the source file.
+;; To avoid having 8-bit characters in the source file.
(defvar gnus-advanced-not (intern (format "%c" 172)))
(defconst gnus-advanced-index
("subject" 1 gnus-advanced-string)
("from" 2 gnus-advanced-string)
("date" 3 gnus-advanced-date)
- ("message-id" 4 gnus-advanced-string)
- ("references" 5 gnus-advanced-string)
- ("chars" 6 gnus-advanced-integer)
- ("lines" 7 gnus-advanced-integer)
+ ("message-id" 4 gnus-advanced-string)
+ ("references" 5 gnus-advanced-string)
+ ("chars" 6 gnus-advanced-integer)
+ ("lines" 7 gnus-advanced-integer)
("xref" 8 gnus-advanced-string)
("head" nil gnus-advanced-body)
("body" nil gnus-advanced-body)
("all" nil gnus-advanced-body)))
-(eval-and-compile
- (autoload 'parse-time-string "parse-time"))
-
+(autoload 'parse-time-string "parse-time")
+
(defun gnus-score-advanced (rule &optional trace)
"Apply advanced scoring RULE to all the articles in the current group."
- (let ((headers gnus-newsgroup-headers)
- gnus-advanced-headers score)
- (while (setq gnus-advanced-headers (pop headers))
- (when (gnus-advanced-score-rule (car rule))
- ;; This rule was successful, so we add the score to
- ;; this article.
+ (let (new-score score multiple)
+ (dolist (gnus-advanced-headers gnus-newsgroup-headers)
+ (when (setq multiple (gnus-advanced-score-rule (car rule)))
+ (setq new-score (or (nth 1 rule)
+ gnus-score-interactive-default-score))
+ (when (numberp multiple)
+ (setq new-score (* multiple new-score)))
+ ;; This rule was successful, so we add the score to this
+ ;; article.
(if (setq score (assq (mail-header-number gnus-advanced-headers)
gnus-newsgroup-scored))
(setcdr score
- (+ (cdr score)
- (or (nth 1 rule)
- gnus-score-interactive-default-score)))
+ (+ (cdr score) new-score))
(push (cons (mail-header-number gnus-advanced-headers)
- (or (nth 1 rule)
- gnus-score-interactive-default-score))
+ new-score)
gnus-newsgroup-scored)
(when trace
(push (cons "A file" rule)
+ ;; Must be synced with `gnus-score-edit-file-at-point'.
gnus-score-trace)))))))
(defun gnus-advanced-score-rule (rule)
"Apply RULE to `gnus-advanced-headers'."
(let ((type (car rule)))
- (cond
+ (cond
;; "And" rule.
((or (eq type '&) (eq type 'and))
(pop rule)
;; This is a `1-'-type redirection rule.
((and (symbolp type)
(string-match "^[0-9]+-$\\|^\\^+$" (symbol-name type)))
- (let ((gnus-advanced-headers
+ (let ((gnus-advanced-headers
(gnus-parent-headers
gnus-advanced-headers
(if (string-match "^\\([0-9]+\\)-$" (symbol-name type))
;; 1- type redirection.
(string-to-number
(substring (symbol-name type)
- (match-beginning 0) (match-end 0)))
+ (match-beginning 1) (match-end 1)))
;; ^^^ type redirection.
(length (symbol-name type))))))
(when gnus-advanced-headers
(error "Unknown advanced score type: %s" rule)))))
(defun gnus-advanced-score-article (rule)
- ;; `rule' is a semi-normal score rule, so we find out
- ;; what function that's supposed to do the actual
- ;; processing.
+ ;; `rule' is a semi-normal score rule, so we find out what function
+ ;; that's supposed to do the actual processing.
(let* ((header (car rule))
(func (assoc (downcase header) gnus-advanced-index)))
(if (not func)
(let* ((type (or type 's))
(case-fold-search (not (eq (downcase (symbol-name type))
(symbol-name type))))
- (header (aref gnus-advanced-headers index)))
+ (header (or (aref gnus-advanced-headers index) "")))
(cond
((memq type '(r R regexp Regexp))
(string-match match header))
(defun gnus-advanced-integer (index match type)
(if (not (memq type '(< > <= >= =)))
(error "No such integer score type: %s" type)
- (funcall type match (or (aref gnus-advanced-headers index) 0))))
+ (funcall type (or (aref gnus-advanced-headers index) 0) match)))
(defun gnus-advanced-date (index match type)
- (let ((date (encode-time (parse-time-string
- (aref gnus-advanced-headers index))))
- (match (encode-time (parse-time-string match))))
- (cond
+ (let ((date (apply 'encode-time (parse-time-string
+ (aref gnus-advanced-headers index))))
+ (match (apply 'encode-time (parse-time-string match))))
+ (cond
((eq type 'at)
(equal date match))
((eq type 'before)
- (gnus-time-less match date))
+ (time-less-p match date))
((eq type 'after)
- (gnus-time-less date match))
+ (time-less-p date match))
(t
(error "No such date score type: %s" type)))))
(defun gnus-advanced-body (header match type)
(when (string= header "all")
(setq header "article"))
- (save-excursion
- (set-buffer nntp-server-buffer)
+ (with-current-buffer nntp-server-buffer
(let* ((request-func (cond ((string= "head" header)
- 'gnus-request-head)
- ((string= "body" header)
- 'gnus-request-body)
- (t 'gnus-request-article)))
- ofunc article)
- ;; Not all backends support partial fetching. In that case,
- ;; we just fetch the entire article.
- (unless (gnus-check-backend-function
- (intern (concat "request-" header))
- gnus-newsgroup-name)
- (setq ofunc request-func)
- (setq request-func 'gnus-request-article))
+ 'gnus-request-head)
+ ((string= "body" header)
+ 'gnus-request-body)
+ (t 'gnus-request-article)))
+ ofunc article handles)
+ ;; Not all backends support partial fetching. In that case, we
+ ;; just fetch the entire article.
+ ;; When scoring by body, we need to peek at the headers to detect the
+ ;; content encoding
+ (unless (or (gnus-check-backend-function
+ (intern (concat "request-" header))
+ gnus-newsgroup-name)
+ (string= "body" header))
+ (setq ofunc request-func)
+ (setq request-func 'gnus-request-article))
(setq article (mail-header-number gnus-advanced-headers))
(gnus-message 7 "Scoring article %s..." article)
(when (funcall request-func article gnus-newsgroup-name)
- (goto-char (point-min))
- ;; If just parts of the article is to be searched and the
- ;; backend didn't support partial fetching, we just narrow
- ;; to the relevant parts.
- (if ofunc
- (if (eq ofunc 'gnus-request-head)
- (narrow-to-region
- (point)
- (or (search-forward "\n\n" nil t) (point-max)))
- (narrow-to-region
- (or (search-forward "\n\n" nil t) (point))
- (point-max))))
- (let* ((case-fold-search (not (eq (downcase (symbol-name type))
- (symbol-name type))))
- (search-func
- (cond ((memq type '(r R regexp Regexp))
- 're-search-forward)
- ((memq type '(s S string String))
- 'search-forward)
- (t
- (error "Illegal match type: %s" type)))))
- (goto-char (point-min))
- (prog1
- (funcall search-func match nil t)
- (widen)))))))
+ (when (string= "body" header)
+ (setq handles (gnus-score-decode-text-parts)))
+ (goto-char (point-min))
+ ;; If just parts of the article is to be searched and the
+ ;; backend didn't support partial fetching, we just narrow to
+ ;; the relevant parts.
+ (when ofunc
+ (if (eq ofunc 'gnus-request-head)
+ (narrow-to-region
+ (point)
+ (or (search-forward "\n\n" nil t) (point-max)))
+ (narrow-to-region
+ (or (search-forward "\n\n" nil t) (point))
+ (point-max))))
+ (let* ((case-fold-search (not (eq (downcase (symbol-name type))
+ (symbol-name type))))
+ (search-func
+ (cond ((memq type '(r R regexp Regexp))
+ 're-search-forward)
+ ((memq type '(s S string String))
+ 'search-forward)
+ (t
+ (error "Invalid match type: %s" type)))))
+ (goto-char (point-min))
+ (prog1
+ (funcall search-func match nil t)
+ (widen)))
+ (when handles (mm-destroy-parts handles))))))
(provide 'gnus-logic)
-;;; gnus-logic.el ends here.
+;;; gnus-logic.el ends here