2001-05-05 15:00:00 ShengHuo ZHU <zsh@cs.rochester.edu>
[gnus] / lisp / nnslashdot.el
index cbae5ec..8d95721 100644 (file)
@@ -1,5 +1,5 @@
 ;;; nnslashdot.el --- interfacing with Slashdot
-;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+;; Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news
@@ -57,6 +57,9 @@
     "http://slashdot.org/article.pl?sid=%s&mode=nocomment"
   "Where nnslashdot will fetch the article from.")
 
+(defvoo nnslashdot-backslash-url "http://slashdot.org/slashdot.xml"
+  "Where nnslashdot will fetch the stories from.")
+
 (defvoo nnslashdot-threshold -1
   "The article threshold.")
 
@@ -90,7 +93,7 @@
             (nnslashdot-threaded-retrieve-headers articles group)
           (nnslashdot-sane-retrieve-headers articles group)))
     (search-failed (nnslashdot-lose why))))
-  
+
 (deffoo nnslashdot-threaded-retrieve-headers (articles group)
   (let ((last (car (last articles)))
        (did nil)
          (search-forward " on ")
          (setq date (nnslashdot-date-to-date
                      (buffer-substring (point) (1- (search-forward "<")))))
-         (forward-line 2)
-         (setq lines (count-lines
-                      (point)
-                      (re-search-forward
-                       "A href=\"\\(http://slashdot.org\\)?/article" nil t)))
+         (setq lines (/ (- (point)
+                           (progn (forward-line 1) (point)))
+                        60))
          (push
           (cons
            1
            (forward-line 1)
            (if (looking-at
                 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
-               (setq point (match-end 0) 
-                     from (concat 
-                           (nnweb-decode-entities-string (match-string 1))
-                           " <" (match-string 2) ">"))
-             (looking-at "by \\(.+\\) on ")
-             (setq point (match-end 0) 
-                   from (nnweb-decode-entities-string (match-string 1))))
-           (goto-char (- point 5))
+               (progn
+                 (goto-char (- (match-end 0) 5))
+                 (setq from (concat
+                             (nnweb-decode-entities-string (match-string 1))
+                             " <" (match-string 2) ">")))
+             (setq from "")
+             (when (looking-at "by \\(.+\\) on ")
+               (goto-char (- (match-end 0) 5))
+               (setq from (nnweb-decode-entities-string (match-string 1)))))
            (search-forward " on ")
            (setq date
                  (nnslashdot-date-to-date
               (concat subject " (" score ")")
               from date
               (concat "<" (nnslashdot-sid-strip sid) "%"
-                      (number-to-string (1+ article)) 
+                      (number-to-string (1+ article))
                       "@slashdot>")
               (if parent
                   (concat "<" (nnslashdot-sid-strip sid) "%"
          (forward-line 1)
          (if (looking-at
               "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
-             (setq from (concat (nnweb-decode-entities-string (match-string 1))
-                                 " <" (match-string 2) ">"))
-           (looking-at "by \\(.+\\) on ")
-           (setq from (nnweb-decode-entities-string (match-string 1))))
-         (goto-char (- (match-end 0) 5))
+             (progn
+               (goto-char (- (match-end 0) 5))
+               (setq from (concat
+                           (nnweb-decode-entities-string (match-string 1))
+                           " <" (match-string 2) ">")))
+           (setq from "")
+           (when (looking-at "by \\(.+\\) on ")
+             (goto-char (- (match-end 0) 5))
+             (setq from (nnweb-decode-entities-string (match-string 1)))))
          (search-forward " on ")
          (setq date
                (nnslashdot-date-to-date
             (1+ article) (concat subject " (" score ")")
             from date
             (concat "<" (nnslashdot-sid-strip sid) "%"
-                    (number-to-string (1+ article)) 
+                    (number-to-string (1+ article))
                     "@slashdot>")
             (if parent
                 (concat "<" (nnslashdot-sid-strip sid) "%"
        sid elem description articles gname)
     (condition-case why
         ;; First we do the Ultramode to get info on all the latest groups.
-       (progn 
+       (progn
          (mm-with-unibyte-buffer
-           (nnweb-insert "http://slashdot.org/slashdot.xml" t)
+           (nnweb-insert nnslashdot-backslash-url t)
            (goto-char (point-min))
            (while (search-forward "<story>" nil t)
              (narrow-to-region (point) (search-forward "</story>"))
                    (nnweb-decode-entities-string (match-string 1)))
              (re-search-forward "<url>\\([^<]+\\)</url>")
              (setq sid (match-string 1))
-             (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
-             (setq sid (concat "00/" (match-string 1 sid)))
+             (string-match "sid=\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
+             (setq sid (match-string 1 sid))
              (re-search-forward "<comments>\\([^<]+\\)</comments>")
              (setq articles (string-to-number (match-string 1)))
              (setq gname (concat description " (" sid ")"))
              (if (setq elem (assoc gname nnslashdot-groups))
                  (setcar (cdr elem) articles)
-               (push (list gname articles sid) nnslashdot-groups))
+               (push (list gname articles sid (current-time)) 
+                     nnslashdot-groups))
              (goto-char (point-max))
              (widen)))
          ;; Then do the older groups.
                  (setq gname (concat description " (" sid ")"))
                  (if (setq elem (assoc gname nnslashdot-groups))
                      (setcar (cdr elem) articles)
-                   (push (list gname articles sid) nnslashdot-groups)))))
+                   (push (list gname articles sid (current-time)) 
+                         nnslashdot-groups)))))
            (incf number 30)))
       (search-failed (nnslashdot-lose why)))
     (nnslashdot-write-groups)
     (nnslashdot-generate-active)
     t))
-  
+
 (deffoo nnslashdot-request-newgroups (date &optional server)
   (nnslashdot-possibly-change-server nil server)
   (nnslashdot-generate-active)
                                nnslashdot-groups))
   (nnslashdot-write-groups))
 
+(deffoo nnslashdot-request-close ()
+  (setq nnslashdot-headers nil
+       nnslashdot-groups nil))
+
+(deffoo nnslashdot-request-expire-articles
+    (articles group &optional server force)
+  (nnslashdot-possibly-change-server group server)
+  (let ((item (assoc group nnslashdot-groups)))
+    (when item
+      (if (fourth item)
+         (when (and (>= (length articles) (cadr item)) ;; All are expirable.
+                    (nnmail-expired-article-p 
+                     group
+                     (fourth item) 
+                     force))
+           (setq nnslashdot-groups (delq item nnslashdot-groups))
+           (nnslashdot-write-groups)
+           (setq articles nil)) ;; all expired.
+       (setcdr (cddr item) (list (current-time)))
+       (nnslashdot-write-groups))))
+  articles)
+
 (nnoo-define-skeleton nnslashdot)
 
 ;;; Internal functions
 (defun nnslashdot-write-groups ()
   (with-temp-file (expand-file-name "groups" nnslashdot-directory)
     (prin1 nnslashdot-groups (current-buffer))))
-    
+
 (defun nnslashdot-init (server)
   "Initialize buffers and such."
   (unless (file-exists-p nnslashdot-directory)