Indent.

[gnus] / lisp / nnmail.el

diff --git a/lisp/nnmail.el b/lisp/nnmail.el
index a5ff525..cb1fb79 100644 (file)
--- a/lisp/nnmail.el
+++ b/lisp/nnmail.el
@@ -1,5 +1,5 @@
 ;;; nnmail.el --- mail support functions for the Gnus mail backends
 ;;; nnmail.el --- mail support functions for the Gnus mail backends

-;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002

 ;;        Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;;        Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>


@@ -37,7 +37,8 @@
 
 (eval-and-compile
   (autoload 'gnus-error "gnus-util")
 
 (eval-and-compile
   (autoload 'gnus-error "gnus-util")

-  (autoload 'gnus-buffer-live-p "gnus-util"))
+  (autoload 'gnus-buffer-live-p "gnus-util")
+  (autoload 'gnus-add-buffer "gnus"))

 
 (defgroup nnmail nil
   "Reading mail with Gnus."
 
 (defgroup nnmail nil
   "Reading mail with Gnus."


@@ -56,7 +57,7 @@
   :group 'nnmail)
 
 (defgroup nnmail-split nil
   :group 'nnmail)
 
 (defgroup nnmail-split nil

-  "Organizing the incomming mail in folders."
+  "Organizing the incoming mail in folders."

   :group 'nnmail)
 
 (defgroup nnmail-files nil
   :group 'nnmail)
 
 (defgroup nnmail-files nil


@@ -76,8 +77,7 @@
   "Various mail options."
   :group 'nnmail)
 
   "Various mail options."
   :group 'nnmail)
 

-(defcustom nnmail-split-methods
-  '(("mail.misc" ""))
+(defcustom nnmail-split-methods '(("mail.misc" ""))

   "*Incoming mail will be split according to this variable.
 
 If you'd like, for instance, one mail group for mail from the
   "*Incoming mail will be split according to this variable.
 
 If you'd like, for instance, one mail group for mail from the


@@ -86,8 +86,8 @@ else, you could do something like this:
 
  (setq nnmail-split-methods
        '((\"mail.4ad\" \"From:.*4ad\")
 
  (setq nnmail-split-methods
        '((\"mail.4ad\" \"From:.*4ad\")

-         (\"mail.junk\" \"From:.*Lars\\\\|Subject:.*buy\")
-         (\"mail.misc\" \"\")))
+        (\"mail.junk\" \"From:.*Lars\\\\|Subject:.*buy\")
+        (\"mail.misc\" \"\")))

 
 As you can see, this variable is a list of lists, where the first
 element in each \"rule\" is the name of the group (which, by the way,
 
 As you can see, this variable is a list of lists, where the first
 element in each \"rule\" is the name of the group (which, by the way,


@@ -104,7 +104,8 @@ The last element should always have \"\" as the regexp.
 
 This variable can also have a function as its value."
   :group 'nnmail-split
 
 This variable can also have a function as its value."
   :group 'nnmail-split

-  :type '(choice (repeat :tag "Alist" (group (string :tag "Name") regexp))
+  :type '(choice (repeat :tag "Alist" (group (string :tag "Name")
+                                            (choice regexp function)))

                 (function-item nnmail-split-fancy)
                 (function :tag "Other")))
 
                 (function-item nnmail-split-fancy)
                 (function :tag "Other")))
 


@@ -115,6 +116,22 @@ If nil, the first match found will be used."
   :group 'nnmail-split
   :type 'boolean)
 
   :group 'nnmail-split
   :type 'boolean)
 

+(defcustom nnmail-split-fancy-with-parent-ignore-groups nil
+  "Regexp that matches group names to be ignored when applying `nnmail-split-fancy-with-parent'.
+This can also be a list of regexps."
+  :group 'nnmail-split
+  :type '(choice (const :tag "none" nil)
+                (regexp :value ".*")
+                (repeat :value (".*") regexp)))
+
+(defcustom nnmail-cache-ignore-groups nil
+  "Regexp that matches group names to be ignored when inserting message ids into the cache (`nnmail-cache-insert').
+This can also be a list of regexps."
+  :group 'nnmail-split
+  :type '(choice (const :tag "none" nil)
+                (regexp :value ".*")
+                (repeat :value (".*") regexp)))
+

 ;; Added by gord@enci.ucalgary.ca (Gordon Matzigkeit).
 (defcustom nnmail-keep-last-article nil
   "If non-nil, nnmail will never delete/move a group's last article.
 ;; Added by gord@enci.ucalgary.ca (Gordon Matzigkeit).
 (defcustom nnmail-keep-last-article nil
   "If non-nil, nnmail will never delete/move a group's last article.


@@ -145,7 +162,7 @@ number of days) -- this doesn't have to be an integer.  This variable
 can also be `immediate' and `never'."
   :group 'nnmail-expire
   :type '(choice (const immediate)
 can also be `immediate' and `never'."
   :group 'nnmail-expire
   :type '(choice (const immediate)

-                (integer :tag "days")
+                (number :tag "days")

                 (const never)))
 
 (defcustom nnmail-expiry-wait-function nil
                 (const never)))
 
 (defcustom nnmail-expiry-wait-function nil


@@ -159,8 +176,8 @@ Eg.:
 
 \(setq nnmail-expiry-wait-function
       (lambda (newsgroup)
 
 \(setq nnmail-expiry-wait-function
       (lambda (newsgroup)

-        (cond ((string-match \"private\" newsgroup) 31)
-              ((string-match \"junk\" newsgroup) 1)
+       (cond ((string-match \"private\" newsgroup) 31)
+             ((string-match \"junk\" newsgroup) 1)

              ((string-match \"important\" newsgroup) 'never)
              (t 7))))"
   :group 'nnmail-expire
              ((string-match \"important\" newsgroup) 'never)
              (t 7))))"
   :group 'nnmail-expire


@@ -168,14 +185,55 @@ Eg.:
                 (function :format "%v" nnmail-)))
 
 (defcustom nnmail-expiry-target 'delete
                 (function :format "%v" nnmail-)))
 
 (defcustom nnmail-expiry-target 'delete

-  "*Variable that says where expired messages should end up."
-    :group 'nnmail-expire
-    :type '(choice (const delete)
-                  (function :format "%v" nnmail-)
-                  string))
+  "*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)."
+  :version "21.1"
+  :group 'nnmail-expire
+  :type '(choice (const delete)
+                (function :format "%v" nnmail-)
+                string))
+
+(defcustom nnmail-fancy-expiry-targets nil
+  "Determine expiry target based on articles using fancy techniques.
+
+This is a list of (\"HEADER\" \"REGEXP\" \"TARGET\") entries.  If
+`nnmail-expiry-target' is set to the function
+`nnmail-fancy-expiry-target' and HEADER of the article matches REGEXP,
+the message will be expired to a group determined by invoking
+`format-time-string' with TARGET used as the format string and the
+time extracted from the articles' Date header (if missing the current
+time is used).
+
+In the special cases that HEADER is the symbol `to-from', the regexp
+will try to match against both the From and the To header.
+
+Example:
+
+\(setq nnmail-fancy-expiry-targets
+      '((to-from \"boss\" \"nnfolder:Work\")
+       (\"Subject\" \"IMPORTANT\" \"nnfolder:IMPORTANT.%Y.%b\")
+       (\"from\" \".*\" \"nnfolder:Archive-%Y\")))
+
+In this case, articles containing the string \"boss\" in the To or the
+From header will be expired to the group \"nnfolder:Work\";
+articles containing the sting \"IMPORTANT\" in the Subject header will
+be expired to the group \"nnfolder:IMPORTANT.YYYY.MMM\"; and
+everything else will be expired to \"nnfolder:Archive-YYYY\"."
+  :group 'nnmail-expire
+  :type '(repeat (list (choice :tag "Match against"
+                              (string :tag "Header")
+                              (const to-from))
+                      regexp
+                      (string :tag "Target group format 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)
 


@@ -191,6 +249,13 @@ 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."
+  :version "21.1"
+  :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


@@ -214,7 +279,7 @@ 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


@@ -223,9 +288,9 @@ 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.


@@ -286,11 +351,12 @@ discarded after running the split process."
   :type 'hook)
 
 (defcustom nnmail-large-newsgroup 50
   :type 'hook)
 
 (defcustom nnmail-large-newsgroup 50

-  "*The number of the articles which indicates a large newsgroup.
+  "*The number of the articles which indicates a large newsgroup or nil.

 If the number of the articles is greater than the value, verbose
 messages will be shown to indicate the current status."
   :group 'nnmail-various
 If the number of the articles is greater than the value, verbose
 messages will be shown to indicate the current status."
   :group 'nnmail-various

-  :type 'integer)
+  :type '(choice (const :tag "infinite" nil)
+                 (number :tag "count")))

 
 (defcustom nnmail-split-fancy "mail.misc"
   "Incoming mail can be split according to this fancy variable.
 
 (defcustom nnmail-split-fancy "mail.misc"
   "Incoming mail can be split according to this fancy variable.


@@ -302,9 +368,9 @@ the following:
 GROUP: Mail will be stored in GROUP (a string).
 
 \(FIELD VALUE [- RESTRICT [- RESTRICT [...]]] SPLIT): If the message
 GROUP: Mail will be stored in GROUP (a string).
 
 \(FIELD VALUE [- RESTRICT [- RESTRICT [...]]] SPLIT): If the message

-  field FIELD (a regexp) contains VALUE (a regexp), store the messages 
+  field FIELD (a regexp) contains VALUE (a regexp), store the messages

   as specified by SPLIT.  If RESTRICT (a regexp) matches some string
   as specified by SPLIT.  If RESTRICT (a regexp) matches some string

-  after FIELD and before the end of the matched VALUE, return NIL,
+  after FIELD and before the end of the matched VALUE, return nil,

   otherwise process SPLIT.  Multiple RESTRICTs add up, further
   restricting the possibility of processing SPLIT.
 
   otherwise process SPLIT.  Multiple RESTRICTs add up, further
   restricting the possibility of processing SPLIT.
 


@@ -322,6 +388,12 @@ GROUP: Mail will be stored in GROUP (a string).
   return value FUNCTION should be a split, which is then recursively
   processed.
 
   return value FUNCTION should be a split, which is then recursively
   processed.
 

+junk: Mail will be deleted.  Use with care!  Do not submerge in water!
+  Example:
+  (setq nnmail-split-fancy
+       '(| (\"Subject\" \"MAKE MONEY FAST\" junk)
+           ...other.rules.omitted...))
+

 FIELD must match a complete field name.  VALUE must match a complete
 word according to the `nnmail-split-fancy-syntax-table' syntax table.
 You can use \".*\" in the regexps to match partial field names or words.
 FIELD must match a complete field name.  VALUE must match a complete
 word according to the `nnmail-split-fancy-syntax-table' syntax table.
 You can use \".*\" in the regexps to match partial field names or words.


@@ -349,13 +421,13 @@ Example:
             ;; Other mailing lists...
             (any \"procmail@informatik\\\\.rwth-aachen\\\\.de\" \"procmail.list\")
             (any \"SmartList@informatik\\\\.rwth-aachen\\\\.de\" \"SmartList.list\")
             ;; Other mailing lists...
             (any \"procmail@informatik\\\\.rwth-aachen\\\\.de\" \"procmail.list\")
             (any \"SmartList@informatik\\\\.rwth-aachen\\\\.de\" \"SmartList.list\")

-             ;; Both lists below have the same suffix, so prevent
-             ;; cross-posting to mkpkg.list of messages posted only to 
-             ;; the bugs- list, but allow cross-posting when the
-             ;; message was really cross-posted.
-             (any \"bugs-mypackage@somewhere\" \"mypkg.bugs\")
-             (any \"mypackage@somewhere\" - \"bugs-mypackage\" \"mypkg.list\")
-             ;; 
+            ;; Both lists below have the same suffix, so prevent
+            ;; cross-posting to mkpkg.list of messages posted only to
+            ;; the bugs- list, but allow cross-posting when the
+            ;; message was really cross-posted.
+            (any \"bugs-mypackage@somewhere\" \"mypkg.bugs\")
+            (any \"mypackage@somewhere\" - \"bugs-mypackage\" \"mypkg.list\")
+            ;;

             ;; People...
             (any \"larsi@ifi\\\\.uio\\\\.no\" \"people.Lars Magne Ingebrigtsen\"))
          ;; Unmatched mail goes to the catch all group.
             ;; People...
             (any \"larsi@ifi\\\\.uio\\\\.no\" \"people.Lars Magne Ingebrigtsen\"))
          ;; Unmatched mail goes to the catch all group.


@@ -404,18 +476,33 @@ parameter.  It should return nil, `warn' or `delete'."
                 (const warn)
                 (const delete)))
 
                 (const warn)
                 (const delete)))
 

-(defcustom nnmail-extra-headers nil
+(defcustom nnmail-extra-headers '(To Newsgroups)

   "*Extra headers to parse."
   "*Extra headers to parse."

+  :version "21.1"

   :group 'nnmail
   :type '(repeat symbol))
 
 (defcustom nnmail-split-header-length-limit 512
   "Header lines longer than this limit are excluded from the split function."
   :group 'nnmail
   :type '(repeat symbol))
 
 (defcustom nnmail-split-header-length-limit 512
   "Header lines longer than this limit are excluded from the split function."

+  :version "21.1"

   :group 'nnmail
   :type 'integer)
 
   :group 'nnmail
   :type 'integer)
 

+(defcustom nnmail-mail-splitting-charset nil
+  "Default charset to be used when splitting incoming mail."
+  :group 'nnmail
+  :type 'symbol)
+
+(defcustom nnmail-mail-splitting-decodes nil
+  "Whether the nnmail splitting functionality should MIME decode headers."
+  :group 'nnmail
+  :type 'boolean)
+

 ;;; Internal variables.
 
 ;;; Internal variables.
 

+(defvar nnmail-article-buffer " *nnmail incoming*"
+  "The buffer used for splitting incoming mails.")
+

 (defvar nnmail-split-history nil
   "List of group/article elements that say where the previous split put messages.")
 
 (defvar nnmail-split-history nil
   "List of group/article elements that say where the previous split put messages.")
 


@@ -450,25 +537,25 @@ parameter.  It should return nil, `warn' or `delete'."
   mm-text-coding-system
   "Coding system used in reading inbox")
 
   mm-text-coding-system
   "Coding system used in reading inbox")
 

-(defvar nnmail-pathname-coding-system 'binary
-  "*Coding system for pathname.")
+(defvar nnmail-pathname-coding-system nil
+  "*Coding system for file name.")

 
 (defun nnmail-find-file (file)
   "Insert FILE in server buffer safely."
   (set-buffer nntp-server-buffer)
   (delete-region (point-min) (point-max))
   (let ((format-alist nil)
 
 (defun nnmail-find-file (file)
   "Insert FILE in server buffer safely."
   (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 ((coding-system-for-read nnmail-file-coding-system)
              (auto-mode-alist (mm-auto-mode-alist))
     (condition-case ()
        (let ((coding-system-for-read nnmail-file-coding-system)
              (auto-mode-alist (mm-auto-mode-alist))

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

          (insert-file-contents file)
          t)
       (file-error nil))))
 
 (defun nnmail-group-pathname (group dir &optional file)
          (insert-file-contents file)
          t)
       (file-error nil))))
 
 (defun nnmail-group-pathname (group dir &optional file)

-  "Make pathname for GROUP."
+  "Make file name for GROUP."

   (concat
    (let ((dir (file-name-as-directory (expand-file-name dir))))
      (setq group (nnheader-replace-duplicate-chars-in-string
   (concat
    (let ((dir (file-name-as-directory (expand-file-name dir))))
      (setq group (nnheader-replace-duplicate-chars-in-string


@@ -513,8 +600,8 @@ nn*-request-list should have been called before calling this function."
            (setq group (read buffer))
            (unless (stringp group)
              (setq group (symbol-name group)))
            (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))))
+           (if (and (numberp (setq max (read buffer)))
+                    (numberp (setq min (read buffer))))

                (push (list group (cons min max))
                      group-assoc)))
        (error nil))
                (push (list group (cons min max))
                      group-assoc)))
        (error nil))


@@ -635,7 +722,7 @@ If SOURCE is a directory spec, try to return the group name component."
 
 (defsubst nnmail-search-unix-mail-delim ()
   "Put point at the beginning of the next Unix mbox message."
 
 (defsubst nnmail-search-unix-mail-delim ()
   "Put point at the beginning of the next Unix mbox message."

-  ;; Algorithm used to find the the next article in the
+  ;; Algorithm used to find the next article in the

   ;; brain-dead Unix mbox format:
   ;;
   ;; 1) Search for "^From ".
   ;; brain-dead Unix mbox format:
   ;;
   ;; 1) Search for "^From ".


@@ -664,7 +751,7 @@ If SOURCE is a directory spec, try to return the group name component."
 
 (defun nnmail-search-unix-mail-delim-backward ()
   "Put point at the beginning of the current Unix mbox message."
 
 (defun nnmail-search-unix-mail-delim-backward ()
   "Put point at the beginning of the current Unix mbox message."

-  ;; Algorithm used to find the the next article in the
+  ;; Algorithm used to find the next article in the

   ;; brain-dead Unix mbox format:
   ;;
   ;; 1) Search for "^From ".
   ;; brain-dead Unix mbox format:
   ;;
   ;; 1) Search for "^From ".


@@ -699,7 +786,9 @@ If SOURCE is a directory spec, try to return the group name component."
     (if (not (and (re-search-forward "^From " nil t)
                  (goto-char (match-beginning 0))))
        ;; Possibly wrong format?
     (if (not (and (re-search-forward "^From " nil t)
                  (goto-char (match-beginning 0))))
        ;; Possibly wrong format?

-       (error "Error, unknown mail format! (Possibly corrupted.)")
+       (error "Error, unknown mail format! (Possibly corrupted %s `%s'.)"
+              (if (buffer-file-name) "file" "buffer")
+              (or (buffer-file-name) (buffer-name)))

       ;; Carry on until the bitter end.
       (while (not (eobp))
        (setq start (point)
       ;; Carry on until the bitter end.
       (while (not (eobp))
        (setq start (point)


@@ -744,7 +833,7 @@ If SOURCE is a directory spec, try to return the group name component."
        (setq head-end (point))
        ;; We try the Content-Length value.  The idea: skip over the header
        ;; separator, then check what happens content-length bytes into the
        (setq head-end (point))
        ;; We try the Content-Length value.  The idea: skip over the header
        ;; separator, then check what happens content-length bytes into the

-       ;; message body.  This should be either the end ot the buffer, the
+       ;; message body.  This should be either the end of the buffer, the

        ;; message separator or a blank line followed by the separator.
        ;; The blank line should probably be deleted.  If neither of the
        ;; three is met, the content-length header is probably invalid.
        ;; message separator or a blank line followed by the separator.
        ;; The blank line should probably be deleted.  If neither of the
        ;; three is met, the content-length header is probably invalid.


@@ -796,8 +885,8 @@ If SOURCE is a directory spec, try to return the group name component."
         start
         (if (search-forward "\n\n" nil t)
             (1- (point))
         start
         (if (search-forward "\n\n" nil t)
             (1- (point))

-          ;; This will never happen, but just to be on the safe side --
-          ;; if there is no head-body delimiter, we search a bit manually.
+        ;; This will never happen, but just to be on the safe side --
+      ;; if there is no head-body delimiter, we search a bit manually.

           (while (and (looking-at "From \\|[^ \t]+:")
                       (not (eobp)))
             (forward-line 1))
           (while (and (looking-at "From \\|[^ \t]+:")
                       (not (eobp)))
             (forward-line 1))


@@ -843,7 +932,7 @@ If SOURCE is a directory spec, try to return the group name component."
      (if (search-forward "\n\n" nil t)
         (1- (point))
        ;; This will never happen, but just to be on the safe side --
      (if (search-forward "\n\n" nil t)
         (1- (point))
        ;; This will never happen, but just to be on the safe side --

-       ;; if there is no head-body delimiter, we search a bit manually.
+      ;; if there is no head-body delimiter, we search a bit manually.

        (while (and (looking-at "From \\|[^ \t]+:")
                   (not (eobp)))
         (forward-line 1))
        (while (and (looking-at "From \\|[^ \t]+:")
                   (not (eobp)))
         (forward-line 1))


@@ -871,7 +960,7 @@ If SOURCE is a directory spec, try to return the group name component."
                                       group artnum-func)
   "Go through the entire INCOMING file and pick out each individual mail.
 FUNC will be called with the buffer narrowed to each mail."
                                       group artnum-func)
   "Go through the entire INCOMING file and pick out each individual mail.
 FUNC will be called with the buffer narrowed to each mail."

-  (let (;; If this is a group-specific split, we bind the split
+  (let ( ;; If this is a group-specific split, we bind the split

        ;; methods to just this group.
        (nnmail-split-methods (if (and group
                                       (not nnmail-resplit-incoming))
        ;; methods to just this group.
        (nnmail-split-methods (if (and group
                                       (not nnmail-resplit-incoming))


@@ -879,7 +968,7 @@ FUNC will be called with the buffer narrowed to each mail."
                                nnmail-split-methods)))
     (save-excursion
       ;; Insert the incoming file.
                                nnmail-split-methods)))
     (save-excursion
       ;; Insert the incoming file.

-      (set-buffer (get-buffer-create " *nnmail incoming*"))
+      (set-buffer (get-buffer-create nnmail-article-buffer))

       (erase-buffer)
       (let ((coding-system-for-read nnmail-incoming-coding-system))
        (mm-insert-file-contents incoming))
       (erase-buffer)
       (let ((coding-system-for-read nnmail-incoming-coding-system))
        (mm-insert-file-contents incoming))


@@ -907,7 +996,7 @@ FUNC will be called with the buffer narrowed to each mail."
 (defun nnmail-article-group (func &optional trace)
   "Look at the headers and return an alist of groups that match.
 FUNC will be called with the group name to determine the article number."
 (defun nnmail-article-group (func &optional trace)
   "Look at the headers and return an alist of groups that match.
 FUNC will be called with the group name to determine the article number."

-  (let ((methods nnmail-split-methods)
+  (let ((methods (or nnmail-split-methods '(("bogus" ""))))

        (obuf (current-buffer))
        (beg (point-min))
        end group-art method grp)
        (obuf (current-buffer))
        (beg (point-min))
        end group-art method grp)


@@ -926,6 +1015,10 @@ FUNC will be called with the group name to determine the article number."
        (erase-buffer)
        ;; Copy the headers into the work buffer.
        (insert-buffer-substring obuf beg end)
        (erase-buffer)
        ;; Copy the headers into the work buffer.
        (insert-buffer-substring obuf beg end)

+       ;; Decode MIME headers and charsets.
+       (when nnmail-mail-splitting-decodes
+         (let ((mail-parse-charset nnmail-mail-splitting-charset))
+           (mail-decode-encoded-word-region (point-min) (point-max))))

        ;; Fold continuation lines.
        (goto-char (point-min))
        (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)
        ;; Fold continuation lines.
        (goto-char (point-min))
        (while (re-search-forward "\\(\r?\n[ \t]+\\)+" nil t)


@@ -955,8 +1048,8 @@ FUNC will be called with the group name to determine the article number."
                       (or (funcall nnmail-split-methods)
                           '("bogus"))
                     (error
                       (or (funcall nnmail-split-methods)
                           '("bogus"))
                     (error

-                     (nnheader-message 5
-                                       "Error in `nnmail-split-methods'; using `bogus' mail group")
+                     (nnheader-message
+                      5 "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))


@@ -1004,13 +1097,12 @@ FUNC will be called with the group name to determine the article number."
                                  (funcall func (car method)))))))))
        ;; Produce a trace if non-empty.
        (when (and trace nnmail-split-trace)
                                  (funcall func (car method)))))))))
        ;; Produce a trace if non-empty.
        (when (and trace nnmail-split-trace)

-         (let ((trace (nreverse nnmail-split-trace))
-               (restore (current-buffer)))
+         (let ((restore (current-buffer)))

            (nnheader-set-temp-buffer "*Split Trace*")
            (gnus-add-buffer)
            (nnheader-set-temp-buffer "*Split Trace*")
            (gnus-add-buffer)

-           (while trace
-             (insert (car trace) "\n")
-             (setq trace (cdr trace)))
+           (dolist (trace (nreverse nnmail-split-trace))
+             (prin1 trace (current-buffer))
+             (insert "\n"))

            (goto-char (point-min))
            (gnus-configure-windows 'split-trace)
            (set-buffer restore)))
            (goto-char (point-min))
            (gnus-configure-windows 'split-trace)
            (set-buffer restore)))


@@ -1031,7 +1123,7 @@ Return the number of characters in the body."
   (let (lines chars)
     (save-excursion
       (goto-char (point-min))
   (let (lines chars)
     (save-excursion
       (goto-char (point-min))

-      (unless (search-forward "\n\n" nil t) 
+      (unless (search-forward "\n\n" nil t)

        (goto-char (point-max))
        (insert "\n"))
       (setq chars (- (point-max) (point)))
        (goto-char (point-max))
        (insert "\n"))
       (setq chars (- (point-max) (point)))


@@ -1075,14 +1167,20 @@ Return the number of characters in the body."
 
 (defun nnmail-remove-list-identifiers ()
   "Remove list identifiers from Subject headers."
 
 (defun nnmail-remove-list-identifiers ()
   "Remove list identifiers from Subject headers."

-  (let ((regexp (if (stringp nnmail-list-identifiers) nnmail-list-identifiers
-                 (mapconcat 'identity nnmail-list-identifiers " *\\|"))))
+  (let ((regexp
+        (if (consp nnmail-list-identifiers)
+            (mapconcat 'identity nnmail-list-identifiers " *\\|")
+          nnmail-list-identifiers)))

     (when regexp
       (goto-char (point-min))
     (when regexp
       (goto-char (point-min))

-      (when (re-search-forward
-            (concat "^Subject: +\\(Re: +\\)?\\(" regexp " *\\)")
-            nil t)
-       (delete-region (match-beginning 2) (match-end 0))))))
+      (while (re-search-forward
+             (concat "^Subject: +\\(R[Ee]: +\\)*\\(" regexp " *\\)")
+             nil t)
+       (delete-region (match-beginning 2) (match-end 0))
+       (beginning-of-line))
+      (when (re-search-forward "^Subject: +\\(\\(R[Ee]: +\\)+\\)R[Ee]: +" nil t)
+       (delete-region (match-beginning 1) (match-end 1))
+       (beginning-of-line)))))

 
 (defun nnmail-remove-tabs ()
   "Translate TAB characters into SPACE characters."
 
 (defun nnmail-remove-tabs ()
   "Translate TAB characters into SPACE characters."


@@ -1097,17 +1195,39 @@ Return the number of characters in the body."
       (beginning-of-line)
       (insert "X-Gnus-Broken-Eudora-"))
     (goto-char (point-min))
       (beginning-of-line)
       (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))))
+    (when (re-search-forward "^\\(In-Reply-To:[^\n]+\\)\n[ \t]+" nil t)
+      (replace-match "\\1" t))))

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

+(defun nnmail-do-request-post (accept-func &optional server)
+  "Utility function to directly post a message to an nnmail-derived group.
+Calls ACCEPT-FUNC (which should be `nnchoke-request-accept-article')
+to actually put the message in the right group."
+  (let ((success t))
+    (dolist (mbx (message-unquote-tokens
+                 (message-tokenize-header
+                  (message-fetch-field "Newsgroups") ", ")) success)
+      (let ((to-newsgroup (gnus-group-prefixed-name mbx gnus-command-method)))
+       (or (gnus-active to-newsgroup)
+           (gnus-activate-group to-newsgroup)
+           (if (gnus-y-or-n-p (format "No such group: %s.  Create it? "
+                                      to-newsgroup))
+               (or (and (gnus-request-create-group
+                         to-newsgroup gnus-command-method)
+                        (gnus-activate-group to-newsgroup nil nil
+                                             gnus-command-method))
+                   (error "Couldn't create group %s" to-newsgroup)))
+           (error "No such group: %s" to-newsgroup))
+       (unless (funcall accept-func mbx (nth 1 gnus-command-method))
+         (setq success nil))))))
+

 (defun nnmail-split-fancy ()
   "Fancy splitting method.
 (defun nnmail-split-fancy ()
   "Fancy splitting method.

-See the documentation for the variable `nnmail-split-fancy' for documentation."
+See the documentation for the variable `nnmail-split-fancy' for details."

   (let ((syntab (syntax-table)))
     (unwind-protect
        (progn
   (let ((syntab (syntax-table)))
     (unwind-protect
        (progn


@@ -1129,7 +1249,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
      ;; A group name.  Do the \& and \N subs into the string.
      ((stringp split)
       (when nnmail-split-tracing
      ;; A group name.  Do the \& and \N subs into the string.
      ((stringp split)
       (when nnmail-split-tracing

-       (push (format "\"%s\"" split) nnmail-split-trace))
+       (push split nnmail-split-trace))

       (list (nnmail-expand-newtext split)))
 
      ;; Junk the message.
       (list (nnmail-expand-newtext split)))
 
      ;; Junk the message.


@@ -1152,6 +1272,8 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
 
      ;; Builtin : operation.
      ((eq (car split) ':)
 
      ;; Builtin : operation.
      ((eq (car split) ':)

+      (when nnmail-split-tracing
+       (push split nnmail-split-trace))

       (nnmail-split-it (save-excursion (eval (cdr split)))))
 
      ;; Builtin ! operation.
       (nnmail-split-it (save-excursion (eval (cdr split)))))
 
      ;; Builtin ! operation.


@@ -1168,13 +1290,13 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
        (while (and (goto-char end-point)
                    (re-search-backward (cdr cached-pair) nil t))
          (when nnmail-split-tracing
        (while (and (goto-char end-point)
                    (re-search-backward (cdr cached-pair) nil t))
          (when nnmail-split-tracing

-           (push (cdr cached-pair) nnmail-split-trace))
+           (push split nnmail-split-trace))

          (let ((split-rest (cddr split))
                (end (match-end 0))
          (let ((split-rest (cddr split))
                (end (match-end 0))

-               ;; The searched regexp is \(\(FIELD\).*\)\(VALUE\).  So,
-               ;; start-of-value is the the point just before the
-               ;; beginning of the value, whereas after-header-name is
-               ;; the point just after the field name.
+               ;; The searched regexp is \(\(FIELD\).*\)\(VALUE\).
+               ;; So, start-of-value is the point just before the
+               ;; beginning of the value, whereas after-header-name
+               ;; is the point just after the field name.

                (start-of-value (match-end 1))
                (after-header-name (match-end 2)))
            ;; Start the next search just before the beginning of the
                (start-of-value (match-end 1))
                (after-header-name (match-end 2)))
            ;; Start the next search just before the beginning of the


@@ -1210,25 +1332,32 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
      (t
       (let* ((field (nth 0 split))
             (value (nth 1 split))
      (t
       (let* ((field (nth 0 split))
             (value (nth 1 split))

-            partial regexp)
+            partial-front regexp
+            partial-rear  regexp)

        (if (symbolp value)
            (setq value (cdr (assq value nnmail-split-abbrev-alist))))
        (if (and (>= (length value) 2)
                 (string= ".*" (substring value 0 2)))
            (setq value (substring value 2)
        (if (symbolp value)
            (setq value (cdr (assq value nnmail-split-abbrev-alist))))
        (if (and (>= (length value) 2)
                 (string= ".*" (substring value 0 2)))
            (setq value (substring value 2)

-                 partial ""))
+                 partial-front ""))
+       ;; Same trick for the rear of the regexp
+       (if (and (>= (length value) 2)
+                (string= ".*" (substring value -2)))
+           (setq value (substring value 0 -2)
+                 partial-rear ""))

        (setq regexp (concat "^\\(\\("
                             (if (symbolp field)
                                 (cdr (assq field nnmail-split-abbrev-alist))
                               field)
                             "\\):.*\\)"
        (setq regexp (concat "^\\(\\("
                             (if (symbolp field)
                                 (cdr (assq field nnmail-split-abbrev-alist))
                               field)
                             "\\):.*\\)"

-                            (or partial "\\<")
+                            (or partial-front "\\<")

                             "\\("
                             value
                             "\\("
                             value

-                            "\\)\\>"))
+                            "\\)"
+                            (or partial-rear "\\>")))

        (push (cons split regexp) nnmail-split-cache)
        ;; Now that it's in the cache, just call nnmail-split-it again
        (push (cons split regexp) nnmail-split-cache)
        ;; Now that it's in the cache, just call nnmail-split-it again

-       ;; on the same split, which will find it immediately in the cache.
+    ;; on the same split, which will find it immediately in the cache.

        (nnmail-split-it split))))))
 
 (defun nnmail-expand-newtext (newtext)
        (nnmail-split-it split))))))
 
 (defun nnmail-expand-newtext (newtext)


@@ -1313,6 +1442,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
       (set-buffer
        (setq nnmail-cache-buffer
             (get-buffer-create " *nnmail message-id cache*")))
       (set-buffer
        (setq nnmail-cache-buffer
             (get-buffer-create " *nnmail message-id cache*")))

+      (gnus-add-buffer)

       (when (file-exists-p nnmail-message-id-cache-file)
        (nnheader-insert-file-contents nnmail-message-id-cache-file))
       (set-buffer-modified-p nil)
       (when (file-exists-p nnmail-message-id-cache-file)
        (nnheader-insert-file-contents nnmail-message-id-cache-file))
       (set-buffer-modified-p nil)


@@ -1345,46 +1475,39 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
 (defvar group)
 (defvar group-art-list)
 (defvar group-art)
 (defvar group)
 (defvar group-art-list)
 (defvar group-art)

-(defun nnmail-cache-insert (id)
+(defun nnmail-cache-insert (id grp)

   (when nnmail-treat-duplicates
     ;; Store some information about the group this message is written
   (when nnmail-treat-duplicates
     ;; 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"))))))
+    ;; to.  This is passed in as the grp argument -- all locations this
+    ;; has been called from have been checked and the group is available.
+    ;; The only ambiguous case is nnmail-check-duplication which will only
+    ;; pass the first (of possibly >1) group which matches. -Josh
+    (unless (gnus-buffer-live-p nnmail-cache-buffer)
+      (nnmail-cache-open))
+    (save-excursion
+      (set-buffer nnmail-cache-buffer)
+      (goto-char (point-max))
+      (if (and grp (not (string= "" grp))
+              (gnus-methods-equal-p gnus-command-method
+                                    (nnmail-cache-primary-mail-backend)))
+         (let ((regexp (if (consp nnmail-cache-ignore-groups)
+                           (mapconcat 'identity nnmail-cache-ignore-groups
+                                      "\\|")
+                         nnmail-cache-ignore-groups)))
+           (unless (and regexp (string-match regexp grp))
+             (insert id "\t" grp "\n")))
+       (insert id "\n")))))

 
 (defun nnmail-cache-primary-mail-backend ()
   (let ((be-list (cons gnus-select-method gnus-secondary-select-methods))
 
 (defun nnmail-cache-primary-mail-backend ()
   (let ((be-list (cons gnus-select-method gnus-secondary-select-methods))

-        (be nil)
-        (res nil))
+       (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)
     (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)))
+                (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
     res))
 
 ;; Fetch the group name corresponding to the message id stored in the


@@ -1395,29 +1518,45 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
       (set-buffer nnmail-cache-buffer)
       (goto-char (point-max))
       (when (search-backward id nil t)
       (set-buffer nnmail-cache-buffer)
       (goto-char (point-max))
       (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))))))))
+       (beginning-of-line)
+       (skip-chars-forward "^\n\r\t")
+       (unless (looking-at "[\r\n]")
+         (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 ()
 
 ;; 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 ()

+  "Split this message into the same group as its parent.
+This function can be used as an entry in `nnmail-split-fancy', for
+example like this: (: nnmail-split-fancy)
+For a message to be split, it looks for the parent message in the
+References or In-Reply-To header and then looks in the message id
+cache file (given by the variable `nnmail-message-id-cache-file') to
+see which group that message was put in.  This group is returned.
+
+See the Info node `(gnus)Fancy Mail Splitting' for more details."

   (let* ((refstr (or (message-fetch-field "references")
   (let* ((refstr (or (message-fetch-field "references")

-                     (message-fetch-field "in-reply-to")))
-         (references nil)
-         (res nil))
+                    (message-fetch-field "in-reply-to")))
+        (references nil)
+        (res nil)
+        (regexp (if (consp nnmail-split-fancy-with-parent-ignore-groups)
+                    (mapconcat
+                     (lambda (x) (format "\\(%s\\)" x))
+                     nnmail-split-fancy-with-parent-ignore-groups
+                     "\\|")
+                  nnmail-split-fancy-with-parent-ignore-groups)))

     (when refstr
       (setq references (nreverse (gnus-split-references refstr)))
       (unless (gnus-buffer-live-p nnmail-cache-buffer)
     (when refstr
       (setq references (nreverse (gnus-split-references refstr)))
       (unless (gnus-buffer-live-p nnmail-cache-buffer)

-        (nnmail-cache-open))
+       (nnmail-cache-open))

       (mapcar (lambda (x)
       (mapcar (lambda (x)

-                (setq res (or (nnmail-cache-fetch-group x) res))
-                (when (string= "drafts" res)
-                  (setq res nil)))
-              references)
+               (setq res (or (nnmail-cache-fetch-group x) res))
+               (when (or (member res '("delayed" "drafts" "queue"))
+                         (and regexp res (string-match regexp res)))
+                 (setq res nil)))
+             references)

       res)))
 
 (defun nnmail-cache-id-exists-p (id)
       res)))
 
 (defun nnmail-cache-id-exists-p (id)


@@ -1459,7 +1598,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
      ((not duplication)
       (funcall func (setq group-art
                          (nreverse (nnmail-article-group artnum-func))))
      ((not duplication)
       (funcall func (setq group-art
                          (nreverse (nnmail-article-group artnum-func))))

-      (nnmail-cache-insert message-id))
+      (nnmail-cache-insert message-id (caar group-art)))

      ((eq action 'delete)
       (setq group-art nil))
      ((eq action 'warn)
      ((eq action 'delete)
       (setq group-art nil))
      ((eq action 'warn)


@@ -1502,7 +1641,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
         (total 0)
         incoming incomings source)
     (when (and (nnmail-get-value "%s-get-new-mail" method)
         (total 0)
         incoming incomings source)
     (when (and (nnmail-get-value "%s-get-new-mail" method)

-              nnmail-spool-file)
+              sources)

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


@@ -1520,17 +1659,17 @@ 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
                                 (list
                                  :predicate
                   group)
          (mail-source-bind (directory source)
            (setq source (append source
                                 (list
                                  :predicate

-                                 `(lambda (file)
-                                    (string-match
-                                     ,(concat
-                                       (regexp-quote (concat group suffix))
-                                       "$")
-                                     file)))))))
+                                 (gnus-byte-compile
+                                  `(lambda (file)
+                                     (string-equal
+                                      ,(concat group suffix)
+                                      (file-name-nondirectory file)))))))))

        (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)


@@ -1551,12 +1690,15 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
        (when (setq new
                    (mail-source-fetch
                     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))))))
+                    (gnus-byte-compile
+                     `(lambda (file orig-file)
+                        (nnmail-split-incoming
+                         file ',(intern (format "%s-save-mail" method))
+                         ',spool-func
+                         (if (equal file orig-file)
+                             nil
+                           (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.
          (incf total new)
          (incf i)))
       ;; If we did indeed read any incoming spools, we save all info.


@@ -1592,7 +1734,7 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
             ;; We expire all articles on sight.
             t)
            ((equal time '(0 0))
             ;; We expire all articles on sight.
             t)
            ((equal time '(0 0))

-            ;; This is an ange-ftp group, and we don't have any dates.
+           ;; This is an ange-ftp group, and we don't have any dates.

             nil)
            ((numberp days)
             (setq days (days-to-time days))
             nil)
            ((numberp days)
             (setq days (days-to-time days))


@@ -1600,10 +1742,46 @@ See the documentation for the variable `nnmail-split-fancy' for documentation."
             (ignore-errors (time-less-p days (time-since time))))))))
 
 (defun nnmail-expiry-target-group (target group)
             (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)))
+  ;; Do not invoke this from nntp-server-buffer!  At least nnfolder clears
+  ;; that buffer if the nnfolder group isn't selected.
+  (let (nnmail-cache-accepted-message-ids)
+    ;; Don't enter Message-IDs into cache.
+    ;; Let users hack it in TARGET function.
+    (when (nnheader-functionp target)
+      (setq target (funcall target group)))
+    (unless (eq target 'delete)
+      (when (or (gnus-request-group target)
+               (gnus-request-create-group target))
+       (let ((group-art (gnus-request-accept-article target nil nil t)))
+         (when (consp group-art)
+           (gnus-group-mark-article-read target (cdr group-art))))))))
+
+(defun nnmail-fancy-expiry-target (group)
+  "Returns a target expiry group determined by `nnmail-fancy-expiry-targets'."
+  (let* (header
+        (case-fold-search nil)
+        (from (or (message-fetch-field "from") ""))
+        (to (or (message-fetch-field "to") ""))
+        (date (date-to-time
+               (or (message-fetch-field "date") (current-time-string))))
+        (target 'delete))
+    (dolist (regexp-target-pair (reverse nnmail-fancy-expiry-targets) target)
+      (setq header (car regexp-target-pair))
+      (cond
+       ;; If the header is to-from then match against the
+       ;; To or From header
+       ((and (equal header 'to-from)
+            (or (string-match (cadr regexp-target-pair) from)
+                (and (string-match message-dont-reply-to-names from)
+                     (string-match (cadr regexp-target-pair) to))))
+       (setq target (format-time-string (caddr regexp-target-pair) date)))
+       ((and (not (equal header 'to-from))
+            (string-match (cadr regexp-target-pair)
+                          (or
+                           (message-fetch-field header)
+                           "")))
+       (setq target
+             (format-time-string (caddr regexp-target-pair) date)))))))

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


@@ -1616,7 +1794,7 @@ 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."
   (let ((coding-system-for-write nnmail-file-coding-system)
 (defun nnmail-write-region (start end filename &optional append visit lockname)
   "Do a `write-region', and then set the file modes."
   (let ((coding-system-for-write nnmail-file-coding-system)

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

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