Feeding back from `t-gnus-6_14' into `pgnus-ichikawa'.

[elisp/gnus.git-] / lisp / nnmail.el

diff --git a/lisp/nnmail.el b/lisp/nnmail.el
index baa18b1..910c667 100644 (file)
--- a/lisp/nnmail.el
+++ b/lisp/nnmail.el
@@ -1,5 +1,6 @@
 ;;; nnmail.el --- mail support functions for the Gnus mail backends
 ;;; nnmail.el --- mail support functions for the Gnus mail backends

-;; Copyright (C) 1995,96,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+;;        Free Software Foundation, Inc.

 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news, mail
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; Keywords: news, mail

@@ -26,6 +27,7 @@
 ;;; Code:
 
 (eval-when-compile (require 'cl))
 ;;; Code:
 
 (eval-when-compile (require 'cl))

+

 (require 'nnheader)
 (require 'message)
 (require 'custom)
 (require 'nnheader)
 (require 'message)
 (require 'custom)

@@ -173,8 +175,22 @@ Eg.:
   :type '(choice (const :tag "nnmail-expiry-wait" nil)
                 (function :format "%v" nnmail-)))
 
   :type '(choice (const :tag "nnmail-expiry-wait" nil)
                 (function :format "%v" nnmail-)))
 

+(defcustom nnmail-expiry-target 'delete
+  "*Variable that says where expired messages should end up.
+The default value is `delete' (which says to delete the messages),
+but it can also be a string or a function.  If it is a string, expired
+messages end up in that group.  If it is a function, the function is
+called in a buffer narrowed to the message in question.  The function
+receives one argument, the name of the group the message comes from.
+The return value should be `delete' or a group name (a string)."
+    :group 'nnmail-expire
+    :type '(choice (const delete)
+                  (function :format "%v" nnmail-)
+                  string))
+

 (defcustom nnmail-cache-accepted-message-ids nil
 (defcustom nnmail-cache-accepted-message-ids nil

-  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache."
+  "If non-nil, put Message-IDs of Gcc'd articles into the duplicate cache.
+If non-nil, also update the cache when copy or move articles."

   :group 'nnmail
   :type 'boolean)
 
   :group 'nnmail
   :type 'boolean)
 

@@ -190,6 +206,12 @@ This variable is obsolete; `mail-sources' should be used instead."
   :group 'nnmail-procmail
   :type 'boolean)
 
   :group 'nnmail-procmail
   :type 'boolean)
 

+(defcustom nnmail-scan-directory-mail-source-once nil
+  "*If non-nil, scan all incoming procmail sorted mails once.
+It scans low-level sorted spools even when not required."
+  :group 'nnmail-procmail
+  :type 'boolean)
+

 (defcustom nnmail-delete-file-function 'delete-file
   "Function called to delete files in some mail backends."
   :group 'nnmail-files
 (defcustom nnmail-delete-file-function 'delete-file
   "Function called to delete files in some mail backends."
   :group 'nnmail-files

@@ -213,7 +235,7 @@ links, you could set this variable to `copy-file' instead."
       '(nnheader-ms-strip-cr)
     nil)
   "*Hook that will be run after the incoming mail has been transferred.
       '(nnheader-ms-strip-cr)
     nil)
   "*Hook that will be run after the incoming mail has been transferred.

-The incoming mail is moved from `nnmail-spool-file' (which normally is
+The incoming mail is moved from the specified spool file (which normally is

 something like \"/usr/spool/mail/$user\") to the user's home
 directory.  This hook is called after the incoming mail box has been
 emptied, and can be used to call any mail box programs you have
 something like \"/usr/spool/mail/$user\") to the user's home
 directory.  This hook is called after the incoming mail box has been
 emptied, and can be used to call any mail box programs you have

@@ -222,9 +244,9 @@ running (\"xwatch\", etc.)
 Eg.
 
 \(add-hook 'nnmail-read-incoming-hook
 Eg.
 
 \(add-hook 'nnmail-read-incoming-hook

-          (lambda ()
-            (start-process \"mailsend\" nil
-                           \"/local/bin/mailsend\" \"read\" \"mbox\")))
+          (lambda ()
+            (call-process \"/local/bin/mailsend\" nil nil nil
+                          \"read\" nnmail-spool-file)))

 
 If you have xwatch running, this will alert it that mail has been
 read.
 
 If you have xwatch running, this will alert it that mail has been
 read.

@@ -445,7 +467,8 @@ parameter.  It should return nil, `warn' or `delete'."
 (defvar nnmail-file-coding-system 'raw-text
   "Coding system used in nnmail.")
 
 (defvar nnmail-file-coding-system 'raw-text
   "Coding system used in nnmail.")
 

-(defvar nnmail-incoming-coding-system 'raw-text
+(defvar nnmail-incoming-coding-system
+  nnheader-text-coding-system

   "Coding system used in reading inbox")
 
 (defvar nnmail-pathname-coding-system 'binary
   "Coding system used in reading inbox")
 
 (defvar nnmail-pathname-coding-system 'binary

@@ -456,9 +479,10 @@ parameter.  It should return nil, `warn' or `delete'."
   (set-buffer nntp-server-buffer)
   (delete-region (point-min) (point-max))
   (let ((format-alist nil)
   (set-buffer nntp-server-buffer)
   (delete-region (point-min) (point-max))
   (let ((format-alist nil)

-        (after-insert-file-functions nil))
+       (after-insert-file-functions nil))

     (condition-case ()
        (let ((auto-mode-alist (nnheader-auto-mode-alist))
     (condition-case ()
        (let ((auto-mode-alist (nnheader-auto-mode-alist))

+             (file-name-coding-system nnmail-pathname-coding-system)

              (pathname-coding-system nnmail-pathname-coding-system))
          (insert-file-contents-as-coding-system
           nnmail-file-coding-system file)
              (pathname-coding-system nnmail-pathname-coding-system))
          (insert-file-contents-as-coding-system
           nnmail-file-coding-system file)

@@ -474,32 +498,50 @@ parameter.  It should return nil, `warn' or `delete'."
                  ?. ?_))
      (setq group (nnheader-translate-file-chars group))
      ;; If this directory exists, we use it directly.
                  ?. ?_))
      (setq group (nnheader-translate-file-chars group))
      ;; If this directory exists, we use it directly.

-     (if (or nnmail-use-long-file-names
-            (file-directory-p (concat dir group)))
-        (concat dir group "/")
-       ;; If not, we translate dots into slashes.
-       (concat dir
-              (encode-coding-string
-               (nnheader-replace-chars-in-string group ?. ?/)
-               nnmail-pathname-coding-system)
-              "/")))
+     (file-name-as-directory
+      (if (or nnmail-use-long-file-names
+             (file-directory-p (concat dir group)))
+         (expand-file-name group dir)
+       ;; If not, we translate dots into slashes.
+       (expand-file-name
+        (encode-coding-string
+         (nnheader-replace-chars-in-string group ?. ?/)
+         nnmail-pathname-coding-system)
+        dir))))

    (or file "")))
 
 (defun nnmail-get-active ()
   "Returns an assoc of group names and active ranges.
 nn*-request-list should have been called before calling this function."
    (or file "")))
 
 (defun nnmail-get-active ()
   "Returns an assoc of group names and active ranges.
 nn*-request-list should have been called before calling this function."

-  (let (group-assoc)
-    ;; Go through all groups from the active list.
-    (save-excursion
-      (set-buffer nntp-server-buffer)
-      (goto-char (point-min))
-      (while (re-search-forward
-             "^\\([^ \t]+\\)[ \t]+\\([0-9]+\\)[ \t]+\\([0-9]+\\)" nil t)
-       ;; We create an alist with `(GROUP (LOW . HIGH))' elements.
-       (push (list (match-string 1)
-                   (cons (string-to-int (match-string 3))
-                         (string-to-int (match-string 2))))
-             group-assoc)))
+  ;; Go through all groups from the active list.
+  (save-excursion
+    (set-buffer nntp-server-buffer)
+    (nnmail-parse-active)))
+
+(defun nnmail-parse-active ()
+  "Parse the active file in the current buffer and return an alist."
+  (goto-char (point-min))
+  (unless (re-search-forward "[\\\"]" nil t)
+    (goto-char (point-max))
+    (while (re-search-backward "[][';?()#]" nil t)
+      (insert ?\\)))
+  (goto-char (point-min))
+  (let ((buffer (current-buffer))
+       group-assoc group max min)
+    (while (not (eobp))
+      (condition-case err
+         (progn
+           (narrow-to-region (point) (gnus-point-at-eol))
+           (setq group (read buffer))
+           (unless (stringp group)
+             (setq group (symbol-name group)))
+           (if (and (numberp (setq max (read nntp-server-buffer)))
+                    (numberp (setq min (read nntp-server-buffer))))
+               (push (list group (cons min max))
+                     group-assoc)))
+       (error nil))
+      (widen)
+      (forward-line 1))

     group-assoc))
 
 (defvar nnmail-active-file-coding-system 'raw-text
     group-assoc))
 
 (defvar nnmail-active-file-coding-system 'raw-text

@@ -518,8 +560,11 @@ nn*-request-list should have been called before calling this function."
   (erase-buffer)
   (let (group)
     (while (setq group (pop alist))
   (erase-buffer)
   (let (group)
     (while (setq group (pop alist))

-      (insert (format "%s %d %d y\n" (car group) (cdadr group)
-                     (caadr group))))))
+      (insert (format "%S %d %d y\n" (intern (car group)) (cdadr group)
+                     (caadr group))))
+    (goto-char (point-max))
+    (while (search-backward "\\." nil t)
+      (delete-char 1))))

 
 (defun nnmail-get-split-group (file source)
   "Find out whether this FILE is to be split into GROUP only.
 
 (defun nnmail-get-split-group (file source)
   "Find out whether this FILE is to be split into GROUP only.

@@ -934,7 +979,7 @@ FUNC will be called with the group name to determine the article number."
                           '("bogus"))
                     (error
                      (nnheader-message 5
                           '("bogus"))
                     (error
                      (nnheader-message 5

-                      "Error in `nnmail-split-methods'; using `bogus' mail group")
+                                       "Error in `nnmail-split-methods'; using `bogus' mail group")

                      (sit-for 1)
                      '("bogus")))))
              (setq split (gnus-remove-duplicates split))
                      (sit-for 1)
                      '("bogus")))))
              (setq split (gnus-remove-duplicates split))

@@ -1073,7 +1118,10 @@ Return the number of characters in the body."
     (goto-char (point-min))
     (when (re-search-forward "^References:" nil t)
       (beginning-of-line)
     (goto-char (point-min))
     (when (re-search-forward "^References:" nil t)
       (beginning-of-line)

-      (insert "X-Gnus-Broken-Eudora-"))))
+      (insert "X-Gnus-Broken-Eudora-"))
+    (goto-char (point-min))
+    (when (re-search-forward "^In-Reply-To:[^\n]+\\(\n[ \t]+\\)" nil t)
+      (replace-match "" t t nil 1))))

 
 (custom-add-option 'nnmail-prepare-incoming-header-hook
                   'nnmail-fix-eudora-headers)
 
 (custom-add-option 'nnmail-prepare-incoming-header-hook
                   'nnmail-fix-eudora-headers)

@@ -1316,14 +1364,84 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
       (setq nnmail-cache-buffer nil)
       (kill-buffer (current-buffer)))))
 
       (setq nnmail-cache-buffer nil)
       (kill-buffer (current-buffer)))))
 

+;; Compiler directives.
+(defvar group)
+(defvar group-art-list)
+(defvar group-art)

 (defun nnmail-cache-insert (id)
   (when nnmail-treat-duplicates
 (defun nnmail-cache-insert (id)
   (when nnmail-treat-duplicates

-    (unless (gnus-buffer-live-p nnmail-cache-buffer)
-      (nnmail-cache-open))
+    ;; Store some information about the group this message is written
+    ;; to.  This function might have been called from various places.
+    ;; Sometimes, a function up in the calling sequence has an
+    ;; argument GROUP which is bound to a string, the group name.  At
+    ;; other times, there is a function up in the calling sequence
+    ;; which has an argument GROUP-ART which is a list of pairs, and
+    ;; the car of a pair is a group name.  Should we check that the
+    ;; length of the list is equal to 1? -- kai
+    (let ((g nil))
+      (cond ((and (boundp 'group) group)
+             (setq g group))
+            ((and (boundp 'group-art-list) group-art-list
+                  (listp group-art-list))
+             (setq g (caar group-art-list)))
+            ((and (boundp 'group-art) group-art (listp group-art))
+             (setq g (caar group-art)))
+            (t (setq g "")))
+      (unless (gnus-buffer-live-p nnmail-cache-buffer)
+        (nnmail-cache-open))
+      (save-excursion
+        (set-buffer nnmail-cache-buffer)
+        (goto-char (point-max))
+        (if (and g (not (string= "" g))
+                 (gnus-methods-equal-p gnus-command-method
+                                       (nnmail-cache-primary-mail-backend)))
+            (insert id "\t" g "\n")
+          (insert id "\n"))))))
+
+(defun nnmail-cache-primary-mail-backend ()
+  (let ((be-list (cons gnus-select-method gnus-secondary-select-methods))
+        (be nil)
+        (res nil))
+    (while (and (null res) be-list)
+      (setq be (car be-list))
+      (setq be-list (cdr be-list))
+      (when (and (gnus-method-option-p be 'respool)
+                 (eval (intern (format "%s-get-new-mail" (car be)))))
+        (setq res be)))
+    res))
+
+;; Fetch the group name corresponding to the message id stored in the
+;; cache.
+(defun nnmail-cache-fetch-group (id)
+  (when (and nnmail-treat-duplicates nnmail-cache-buffer)

     (save-excursion
       (set-buffer nnmail-cache-buffer)
       (goto-char (point-max))
     (save-excursion
       (set-buffer nnmail-cache-buffer)
       (goto-char (point-max))

-      (insert id "\n"))))
+      (when (search-backward id nil t)
+        (beginning-of-line)
+        (skip-chars-forward "^\n\r\t")
+        (unless (eolp)
+          (forward-char 1)
+          (buffer-substring (point)
+                            (progn (end-of-line) (point))))))))
+
+;; Function for nnmail-split-fancy: look up all references in the
+;; cache and if a match is found, return that group.
+(defun nnmail-split-fancy-with-parent ()
+  (let* ((refstr (or (message-fetch-field "references")
+                     (message-fetch-field "in-reply-to")))
+         (references nil)
+         (res nil))
+    (when refstr
+      (setq references (nreverse (gnus-split-references refstr)))
+      (unless (gnus-buffer-live-p nnmail-cache-buffer)
+        (nnmail-cache-open))
+      (mapcar (lambda (x)
+                (setq res (or (nnmail-cache-fetch-group x) res))
+                (when (string= "drafts" res)
+                  (setq res nil)))
+              references)
+      res)))

 
 (defun nnmail-cache-id-exists-p (id)
   (when nnmail-treat-duplicates
 
 (defun nnmail-cache-id-exists-p (id)
   (when nnmail-treat-duplicates

@@ -1400,21 +1518,14 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
   (let* ((sources (or mail-sources
                      (if (listp nnmail-spool-file) nnmail-spool-file
                        (list nnmail-spool-file))))
   (let* ((sources (or mail-sources
                      (if (listp nnmail-spool-file) nnmail-spool-file
                        (list nnmail-spool-file))))

+        fetching-sources

         (group-in group)
         (i 0)
         (new 0)
         (total 0)
         incoming incomings source)
     (when (and (nnmail-get-value "%s-get-new-mail" method)
         (group-in group)
         (i 0)
         (new 0)
         (total 0)
         incoming incomings source)
     (when (and (nnmail-get-value "%s-get-new-mail" method)

-              nnmail-spool-file)
-      ;; We first activate all the groups.
-      (nnmail-activate method)
-      ;; Allow the user to hook.
-      (run-hooks 'nnmail-pre-get-new-mail-hook)
-      ;; Open the message-id cache.
-      (nnmail-cache-open)
-      ;; The we go through all the existing mail source specification
-      ;; and fetch the mail from each.
+              sources)

       (while (setq source (pop sources))
        ;; Be compatible with old values.
        (cond
       (while (setq source (pop sources))
        ;; Be compatible with old values.
        (cond

@@ -1432,6 +1543,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
          nil))
        ;; Hack to only fetch the contents of a single group's spool file.
        (when (and (eq (car source) 'directory)
          nil))
        ;; Hack to only fetch the contents of a single group's spool file.
        (when (and (eq (car source) 'directory)

+                  (null nnmail-scan-directory-mail-source-once)

                   group)
          (mail-source-bind (directory source)
            (setq source (append source
                   group)
          (mail-source-bind (directory source)
            (setq source (append source

@@ -1446,21 +1558,31 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
        (when nnmail-fetched-sources
          (if (member source nnmail-fetched-sources)
              (setq source nil)
        (when nnmail-fetched-sources
          (if (member source nnmail-fetched-sources)
              (setq source nil)

-           (push source nnmail-fetched-sources)))
-       (when source
-         (nnheader-message 4 "%s: Reading incoming mail from %s..."
-                           method (car source))
-         (when (setq new
-                     (mail-source-fetch
-                      source
-                      `(lambda (file orig-file)
-                         (nnmail-split-incoming
-                          file ',(intern (format "%s-save-mail" method))
-                          ',spool-func
-                          (nnmail-get-split-group orig-file source)
-                          ',(intern (format "%s-active-number" method))))))
-           (incf total new)
-           (incf i))))
+           (push source nnmail-fetched-sources)
+           (push source fetching-sources)))))
+    (when fetching-sources
+      ;; We first activate all the groups.
+      (nnmail-activate method)
+      ;; Allow the user to hook.
+      (run-hooks 'nnmail-pre-get-new-mail-hook)
+      ;; Open the message-id cache.
+      (nnmail-cache-open)
+      ;; The we go through all the existing mail source specification
+      ;; and fetch the mail from each.
+      (while (setq source (pop fetching-sources))
+       (nnheader-message 4 "%s: Reading incoming mail from %s..."
+                         method (car source))
+       (when (setq new
+                   (mail-source-fetch
+                    source
+                    `(lambda (file orig-file)
+                       (nnmail-split-incoming
+                        file ',(intern (format "%s-save-mail" method))
+                        ',spool-func
+                        (nnmail-get-split-group orig-file source)
+                        ',(intern (format "%s-active-number" method))))))
+         (incf total new)
+         (incf i)))

       ;; If we did indeed read any incoming spools, we save all info.
       (if (zerop total)
          (nnheader-message 4 "%s: Reading incoming mail (no new mail)...done"
       ;; If we did indeed read any incoming spools, we save all info.
       (if (zerop total)
          (nnheader-message 4 "%s: Reading incoming mail (no new mail)...done"

@@ -1501,6 +1623,12 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
             ;; Compare the time with the current time.
             (ignore-errors (time-less-p days (time-since time))))))))
 
             ;; Compare the time with the current time.
             (ignore-errors (time-less-p days (time-since time))))))))
 

+(defun nnmail-expiry-target-group (target group)
+  (when (nnheader-functionp target)
+    (setq target (funcall target group)))
+  (unless (eq target 'delete)
+    (gnus-request-accept-article target nil nil t)))
+

 (defun nnmail-check-syntax ()
   "Check (and modify) the syntax of the message in the current buffer."
   (save-restriction
 (defun nnmail-check-syntax ()
   "Check (and modify) the syntax of the message in the current buffer."
   (save-restriction

@@ -1511,8 +1639,8 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
 
 (defun nnmail-write-region (start end filename &optional append visit lockname)
   "Do a `write-region', and then set the file modes."
 
 (defun nnmail-write-region (start end filename &optional append visit lockname)
   "Do a `write-region', and then set the file modes."

-  (let ((pathname-coding-system nnmail-pathname-coding-system))
-    
+  (let ((file-name-coding-system nnmail-pathname-coding-system)
+       (pathname-coding-system nnmail-pathname-coding-system))

     (write-region-as-coding-system
      nnmail-file-coding-system start end filename append visit lockname)
     (set-file-modes filename nnmail-default-file-modes)))
     (write-region-as-coding-system
      nnmail-file-coding-system start end filename append visit lockname)
     (set-file-modes filename nnmail-default-file-modes)))

@@ -1582,6 +1710,8 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
   (unless nnmail-split-history
     (error "No current split history"))
   (with-output-to-temp-buffer "*nnmail split history*"
   (unless nnmail-split-history
     (error "No current split history"))
   (with-output-to-temp-buffer "*nnmail split history*"

+    (with-current-buffer standard-output
+      (fundamental-mode))              ; for Emacs 20.4+

     (let ((history nnmail-split-history)
          elem)
       (while (setq elem (pop history))
     (let ((history nnmail-split-history)
          elem)
       (while (setq elem (pop history))