X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mu-cite.el;h=38508bd244a5cece6f7b779cf273fe0ecb75dae2;hb=e40a8806c02a48a3e16b54e7b2f4de65363ca3f6;hp=eb991914e152dc1220392964ac61709717cebf56;hpb=850bf76ecf524580fc9cb62b3095bc2ed68f6938;p=elisp%2Fmu-cite.git

diff --git a/mu-cite.el b/mu-cite.el
index eb99191..38508bd 100644
--- a/mu-cite.el
+++ b/mu-cite.el
@@ -1,12 +1,10 @@
 ;;; mu-cite.el --- yet another citation tool for GNU Emacs
+;; Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007
+;;        Free Software Foundation, Inc.
 
-;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
-
-;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;;         MINOURA Makoto <minoura@netlaputa.or.jp>
-;;         Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
-;; Maintainer: Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
-;; Version: $Revision: 7.49 $
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
+;;         Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
+;; Maintainer: Katsumi Yamaoka <yamaoka@jpl.org>
 ;; Keywords: mail, news, citation
 
 ;; This file is part of MU (Message Utilities).
@@ -23,404 +21,423 @@
 
 ;; 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.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
 ;; - How to use
-;;   1. bytecompile this file and copy it to the apropriate directory.
-;;   2. put the following lines to your ~/.emacs:
-;;      for EMACS 19 or later and XEmacs
-;;		(autoload 'mu-cite/cite-original "mu-cite" nil t)
+;;   1. Bytecompile this file and copy it to the apropriate directory.
+;;   2. Put the following lines in your ~/.emacs file:
+;;      For EMACS 19 or later and XEmacs
+;;		(autoload 'mu-cite-original "mu-cite" nil t)
 ;;		;; for all but message-mode
-;;		(add-hook 'mail-citation-hook 'mu-cite/cite-original)
+;;		(add-hook 'mail-citation-hook (function mu-cite-original))
 ;;		;; for message-mode only
-;;		(setq message-cite-function (function mu-cite/cite-original))
-;;      for EMACS 18
+;;		(setq message-cite-function (function mu-cite-original))
+;;      For EMACS 18
 ;;		;; for all but mh-e
-;;		(add-hook 'mail-yank-hooks (function mu-cite/cite-original))
+;;		(add-hook 'mail-yank-hooks (function mu-cite-original))
 ;;		;; for mh-e only
-;;		(add-hook 'mh-yank-hooks (function mu-cite/cite-original))
+;;		(add-hook 'mh-yank-hooks (function mu-cite-original))
 
 ;;; Code:
 
-(require 'std11)
-(require 'tl-str)
-(require 'tl-list)
-
-
-;;; @ version
-;;;
-
-(defconst mu-cite/RCS-ID
-  "$Id: mu-cite.el,v 7.49 1997/03/18 15:07:56 morioka Exp $")
-(defconst mu-cite/version (get-version-string mu-cite/RCS-ID))
-
-
-;;; @ formats
-;;;
-
-(defvar mu-cite/cited-prefix-regexp "\\(^[^ \t\n<>]+>+[ \t]*\\|^[ \t]*$\\)"
-  "*Regexp to match the citation prefix.
-If match, mu-cite doesn't insert citation prefix.")
-
-(defvar mu-cite/prefix-format '(prefix-register-verbose "> ")
-  "*List to represent citation prefix.
-Each elements must be string or method name.")
-
-(defvar mu-cite/top-format '(in-id
-			     ">>>>>	" from " wrote:\n")
-  "*List to represent top string of citation.
-Each elements must be string or method name.")
-
-
-;;; @ hooks
-;;;
-
-(defvar mu-cite-load-hook nil
-  "*List of functions called after mu-cite is loaded.
-Use this hook to add your own methods to `mu-cite/default-methods-alist'.")
-
-(defvar mu-cite/instantiation-hook nil
-  "*List of functions called just before narrowing to the message.")
-
-(defvar mu-cite/pre-cite-hook nil
-  "*List of functions called before citing a region of text.")
+;; For picking up the macros `char-next-index', `with-temp-buffer', etc.
+(require 'poem)
 
-(defvar mu-cite/post-cite-hook nil
-  "*List of functions called after citing a region of text.")
-
-
-;;; @ field
-;;;
+(require 'pcustom)
+(require 'std11)
+(require 'alist)
 
-(defvar mu-cite/get-field-value-method-alist nil
-  "Alist major-mode vs. function to get field-body of header.")
+(autoload 'mu-cite-get-prefix-method "mu-register")
+(autoload 'mu-cite-get-prefix-register-method "mu-register")
+(autoload 'mu-cite-get-prefix-register-verbose-method "mu-register")
 
-(defun mu-cite/get-field-value (name)
-  (or (std11-field-body name)
-      (let ((method (assq major-mode mu-cite/get-field-value-method-alist)))
-	(if method
-	    (funcall (cdr method) name)
-	  ))))
+(autoload 'mu-bbdb-get-prefix-method "mu-bbdb")
+(autoload 'mu-bbdb-get-prefix-register-method "mu-bbdb")
+(autoload 'mu-bbdb-get-prefix-register-verbose-method "mu-bbdb")
 
 
-;;; @ prefix registration
+;;; @ version
 ;;;
 
-(defvar mu-cite/registration-file (expand-file-name "~/.mu-cite.el")
-  "*The name of the user environment file for mu-cite.")
-
-(defvar mu-cite/allow-null-string-registration nil
-  "*If non-nil, null-string citation-name is registered.")
-
-(defvar mu-cite/registration-symbol 'mu-cite/citation-name-alist)
-
-(defvar mu-cite/citation-name-alist nil)
-(or (eq 'mu-cite/citation-name-alist mu-cite/registration-symbol)
-    (setq mu-cite/citation-name-alist
-	  (symbol-value mu-cite/registration-symbol))
-    )
-(defvar mu-cite/minibuffer-history nil)
-
-;; get citation-name from the database
-(defun mu-cite/get-citation-name (from)
-  (assoc-value from mu-cite/citation-name-alist)
-  )
-
-;; register citation-name to the database
-(defun mu-cite/add-citation-name (name from)
-  (setq mu-cite/citation-name-alist
-        (put-alist from name mu-cite/citation-name-alist))
-  (mu-cite/save-registration-file)
-  )
-
-;; load/save registration file
-(defun mu-cite/load-registration-file ()
-  (let* ((file mu-cite/registration-file)
-	 (buffer (get-buffer-create " *mu-register*")))
-    (if (file-readable-p file)
-        (unwind-protect
-            (save-excursion
-              (set-buffer buffer)
-              (erase-buffer)
-              (insert-file-contents file)
-              ;; (eval-buffer)
-              (eval-current-buffer))
-          (kill-buffer buffer))
-      )))
-(add-hook 'mu-cite-load-hook (function mu-cite/load-registration-file))
-
-(defun mu-cite/save-registration-file ()
-  (let* ((file mu-cite/registration-file)
-	 (buffer (get-buffer-create " *mu-register*")))
-    (unwind-protect
-        (save-excursion
-          (set-buffer buffer)
-          (setq buffer-file-name file)
-          (erase-buffer)
-          (insert ";;; " (file-name-nondirectory file) "\n")
-          (insert ";;; This file is generated automatically by mu-cite "
-                  mu-cite/version "\n\n")
-          (insert "(setq "
-                  (symbol-name mu-cite/registration-symbol)
-                  "\n      '(")
-          (insert (mapconcat
-                   (function prin1-to-string)
-                   mu-cite/citation-name-alist "\n        "))
-          (insert "\n        ))\n\n")
-          (insert ";;; "
-                  (file-name-nondirectory file)
-                  " ends here.\n")
-          (save-buffer))
-      (kill-buffer buffer))))
-
+(defconst mu-cite-version "8.1")
 
-;;; @ item methods
-;;;
 
-;;; @@ ML count
+;;; @ macro
 ;;;
 
-(defvar mu-cite/ml-count-field-list
-  '("X-Ml-Count" "X-Mail-Count" "X-Seqno" "X-Sequence" "Mailinglist-Id")
-  "*List of header fields which contain sequence number of mailing list.")
-
-(defun mu-cite/get-ml-count-method ()
-  (let ((field-list mu-cite/ml-count-field-list))
-    (catch 'tag
-      (while field-list
-        (let* ((field (car field-list))
-               (ml-count (mu-cite/get-field-value field)))
-          (if (and ml-count (string-match "[0-9]+" ml-count))
-              (throw 'tag
-                     (substring ml-count
-                                (match-beginning 0)(match-end 0))
-                     ))
-          (setq field-list (cdr field-list))
-          )))))
-
-
-;;; @@ prefix and registration
+(defmacro mu-cite-remove-text-properties (string)
+  "Remove text properties from STRING which is read from minibuffer."
+  (cond ((featurep 'xemacs)
+	 `(let ((string (copy-sequence ,string)))
+	    (map-extents (function (lambda (extent maparg)
+				     (delete-extent extent))
+				   string 0 (length string)))
+	    string))
+	((or (boundp 'minibuffer-allow-text-properties);; Emacs 20.1 or later.
+	     (not (fboundp 'set-text-properties)));; under Emacs 19.7.
+	 string)
+	(t
+	 `(let ((string (copy-sequence ,string)))
+	    (set-text-properties 0 (length string) nil string)
+	    string))))
+
+
+;;; @ set up
 ;;;
 
-(defun mu-cite/get-prefix-method ()
-  (or (mu-cite/get-citation-name (mu-cite/get-value 'address))
-      ">")
-  )
-
-(defun mu-cite/get-prefix-register-method ()
-  (let ((addr (mu-cite/get-value 'address)))
-    (or (mu-cite/get-citation-name addr)
-	(let ((return
-	       (read-string "Citation name? "
-			    (or (mu-cite/get-value 'x-attribution)
-				(mu-cite/get-value 'full-name))
-			    'mu-cite/minibuffer-history)
-	       ))
-	  (if (and (or mu-cite/allow-null-string-registration
-                       (not (string-equal return "")))
-                   (y-or-n-p (format "Register \"%s\"? " return)))
-	      (mu-cite/add-citation-name return addr)
-	    )
-	  return))))
-
-(defun mu-cite/get-prefix-register-verbose-method ()
-  (let* ((addr (mu-cite/get-value 'address))
-         (return1 (mu-cite/get-citation-name addr))
-	 (return (read-string "Citation name? "
-			      (or return1
-				  (mu-cite/get-value 'x-attribution)
-				  (mu-cite/get-value 'full-name))
-			      'mu-cite/minibuffer-history))
-	 )
-    (if (and (or mu-cite/allow-null-string-registration
-                 (not (string-equal return "")))
-             (not (string-equal return return1))
-	     (y-or-n-p (format "Register \"%s\"? " return))
-	     )
-	(mu-cite/add-citation-name return addr)
-      )
-    return))
-
-
-;;; @@ set up
-;;;
+(defgroup mu-cite nil
+  "Yet another citation tool for GNU Emacs."
+  :prefix "mu-cite-"
+  :group 'mail
+  :group 'news)
 
-(defvar mu-cite/default-methods-alist
+(defvar mu-cite-default-methods-alist
   (list (cons 'from
 	      (function
 	       (lambda ()
-		 (mu-cite/get-field-value "From")
-		 )))
+		 (mu-cite-get-field-value "From"))))
 	(cons 'date
 	      (function
 	       (lambda ()
-		 (mu-cite/get-field-value "Date")
-		 )))
+		 (mu-cite-get-field-value "Date"))))
 	(cons 'message-id
 	      (function
 	       (lambda ()
-		 (mu-cite/get-field-value "Message-Id")
-		 )))
+		 (mu-cite-get-field-value "Message-Id"))))
 	(cons 'subject
 	      (function
 	       (lambda ()
-		 (mu-cite/get-field-value "Subject")
-		 )))
+		 (mu-cite-get-field-value "Subject"))))
 	(cons 'ml-name
 	      (function
 	       (lambda ()
-		 (mu-cite/get-field-value "X-Ml-Name")
-		 )))
-	(cons 'ml-count (function mu-cite/get-ml-count-method))
+		 (mu-cite-get-field-value "X-Ml-Name"))))
+	(cons 'ml-count (function mu-cite-get-ml-count-method))
 	(cons 'address-structure
 	      (function
 	       (lambda ()
 		 (car
-		  (std11-parse-address-string (mu-cite/get-value 'from))
-		  ))))
+		  (std11-parse-address-string (mu-cite-get-value 'from))))))
 	(cons 'full-name
 	      (function
 	       (lambda ()
 		 (std11-full-name-string
-		  (mu-cite/get-value 'address-structure))
-		 )))
+		  (mu-cite-get-value 'address-structure)))))
 	(cons 'address
 	      (function
 	       (lambda ()
 		 (std11-address-string
-		  (mu-cite/get-value 'address-structure))
-		 )))
+		  (mu-cite-get-value 'address-structure)))))
 	(cons 'id
 	      (function
 	       (lambda ()
-		 (let ((ml-name (mu-cite/get-value 'ml-name)))
+		 (let ((ml-name (mu-cite-get-value 'ml-name))
+		       (ml-count (mu-cite-get-value 'ml-count)))
 		   (if ml-name
 		       (concat "["
 			       ml-name
-			       " : No."
-			       (mu-cite/get-value 'ml-count)
+			       (if ml-count
+				   (concat " : No." ml-count))
 			       "]")
-		     (mu-cite/get-value 'message-id)
-		     )))))
+		     (mu-cite-get-value 'message-id))))))
 	(cons 'in-id
 	      (function
 	       (lambda ()
-		 (let ((id (mu-cite/get-value 'id)))
+		 (let ((id (mu-cite-get-value 'id)))
 		   (if id
 		       (format ">>>>> In %s \n" id)
 		     "")))))
-	(cons 'prefix (function mu-cite/get-prefix-method))
-	(cons 'prefix-register
-	      (function mu-cite/get-prefix-register-method))
-	(cons 'prefix-register-verbose
-	      (function mu-cite/get-prefix-register-verbose-method))
 	(cons 'x-attribution
 	      (function
 	       (lambda ()
-                 (mu-cite/get-field-value "X-Attribution")
-		 )))
+		 (mu-cite-get-field-value "X-Attribution"))))
+	(cons 'x-cite-me
+	      (function
+	       (lambda ()
+		 (mu-cite-get-field-value "X-Cite-Me"))))
+	;; mu-register
+	(cons 'prefix (function mu-cite-get-prefix-method))
+	(cons 'prefix-register
+	      (function mu-cite-get-prefix-register-method))
+	(cons 'prefix-register-verbose
+	      (function mu-cite-get-prefix-register-verbose-method))
+	;; mu-bbdb
+	(cons 'bbdb-prefix
+	      (function mu-bbdb-get-prefix-method))
+	(cons 'bbdb-prefix-register
+	      (function mu-bbdb-get-prefix-register-method))
+	(cons 'bbdb-prefix-register-verbose
+	      (function mu-bbdb-get-prefix-register-verbose-method))
 	))
 
 
+;;; @ formats
+;;;
+
+(defcustom mu-cite-cited-prefix-regexp
+  "\\(^[^ \t\n<>]+>+[ \t]*\\|^[ \t]*$\\)"
+  "Regexp to match the citation prefix.
+If match, mu-cite doesn't insert citation prefix."
+  :type 'regexp
+  :group 'mu-cite)
+
+(defcustom mu-cite-prefix-format '(prefix-register-verbose "> ")
+  "List to represent citation prefix.
+Each elements must be a string or a method name."
+  :type (list
+	 'repeat
+	 (list
+	  'group
+	  :convert-widget
+	  (function
+	   (lambda (widget)
+	     (list
+	      'choice
+	      :tag "Method or String"
+	      :args
+	      (nconc
+	       (mapcar
+		(function (lambda (elem) (list 'choice-item (car elem))))
+		mu-cite-default-methods-alist)
+	       '((symbol :tag "Method")
+		 (const :tag "-" nil)
+		 (choice-item :tag "String: \"> \"" "> ")
+		 (string))))))))
+  :set (function (lambda (symbol value)
+		   (set-default symbol (delq nil value))))
+  :group 'mu-cite)
+
+(defcustom mu-cite-top-format '(in-id ">>>>>\t" from " wrote:\n")
+  "List to represent top string of citation.
+Each elements must be a string or a method name."
+  :type (list
+	 'repeat
+	 (list
+	  'group
+	  :convert-widget
+	  (function
+	   (lambda (widget)
+	     (list 'choice
+		   :tag "Method or String"
+		   :args
+		   (nconc
+		    (mapcar
+		     (function (lambda (elem) (list 'choice-item (car elem))))
+		     mu-cite-default-methods-alist)
+		    '((symbol :tag "Method")
+		      (const :tag "-" nil)
+		      (choice-item :tag "String: \">>>>>\\t\"" ">>>>>\t")
+		      (choice-item :tag "String: \" wrote:\\n\"" " wrote:\n")
+		      (string :tag "String"))))))))
+  :set (function (lambda (symbol value)
+		   (set-default symbol (delq nil value))))
+  :group 'mu-cite)
+
+
+;;; @ hooks
+;;;
+
+(defcustom mu-cite-instantiation-hook nil
+  "List of functions called just before narrowing to the message."
+  :type 'hook
+  :group 'mu-cite)
+
+(defcustom mu-cite-pre-cite-hook nil
+  "List of functions called before citing a region of text."
+  :type 'hook
+  :group 'mu-cite)
+
+(defcustom mu-cite-post-cite-hook nil
+  "List of functions called after citing a region of text."
+  :type 'hook
+  :group 'mu-cite)
+
+
+;;; @ field
+;;;
+
+(defvar mu-cite-get-field-value-method-alist nil
+  "Alist major-mode vs. function to get field-body of header.")
+
+(defun mu-cite-get-field-value (name)
+  "Return the value of the header field NAME.
+If the field is not found in the header, a method function which is
+registered in variable `mu-cite-get-field-value-method-alist' is called."
+  (or (std11-field-body name)
+      (let ((method (assq major-mode mu-cite-get-field-value-method-alist)))
+	(if method
+	    (funcall (cdr method) name)))))
+
+
+;;; @ item methods
+;;;
+
+;;; @@ ML count
+;;;
+
+(defcustom mu-cite-ml-count-field-list
+  '("X-Ml-Count" "X-Mail-Count" "X-Seqno" "X-Sequence" "Mailinglist-Id")
+  "List of header fields which contains a sequence number of the mailing list."
+  :type '(repeat (choice :tag "Field Name"
+			 (choice-item "X-Ml-Count")
+			 (choice-item "X-Mail-Count")
+			 (choice-item "X-Seqno")
+			 (choice-item "X-Sequence")
+			 (choice-item "Mailinglist-Id")
+			 (const :tag "-" nil)
+			 (string :tag "Other")))
+  :set (function (lambda (symbol value)
+		   (set-default symbol (delq nil value))))
+  :group 'mu-cite)
+
+(defun mu-cite-get-ml-count-method ()
+  "A mu-cite method to return a ML-count.
+This function searches a field about ML-count, which is specified by
+the variable `mu-cite-ml-count-field-list', in a header.
+If the field is found, the function returns a number part of the
+field.
+
+Notice that please use (mu-cite-get-value 'ml-count)
+instead of to call the function directly."
+  (let ((field-list mu-cite-ml-count-field-list))
+    (catch 'tag
+      (while field-list
+	(let* ((field (car field-list))
+	       (ml-count (mu-cite-get-field-value field)))
+	  (if (and ml-count (string-match "[0-9]+" ml-count))
+	      (throw 'tag (match-string 0 ml-count)))
+	  (setq field-list (cdr field-list)))))))
+
+
 ;;; @ fundamentals
 ;;;
 
-(defvar mu-cite/methods-alist nil)
+(defvar mu-cite-methods-alist nil)
 
-(defun mu-cite/make-methods ()
-  (setq mu-cite/methods-alist
-	(copy-alist mu-cite/default-methods-alist))
-  (run-hooks 'mu-cite/instantiation-hook)
-  )
+(defun mu-cite-make-methods ()
+  (setq mu-cite-methods-alist
+	(copy-alist mu-cite-default-methods-alist))
+  (run-hooks 'mu-cite-instantiation-hook))
 
-(defun mu-cite/get-value (item)
-  (let ((ret (assoc-value item mu-cite/methods-alist)))
+(defun mu-cite-get-value (item)
+  "Return a current value of ITEM."
+  (let ((ret (cdr (assoc item mu-cite-methods-alist))))
     (if (functionp ret)
 	(prog1
-	    (setq ret (funcall ret))
-	  (set-alist 'mu-cite/methods-alist item ret)
-	  )
+	    (setq ret (save-excursion (funcall ret)))
+	  (set-alist 'mu-cite-methods-alist item ret))
       ret)))
 
-(defun mu-cite/eval-format (list)
+(defun mu-cite-eval-format (list)
   (mapconcat (function
 	      (lambda (elt)
 		(cond ((stringp elt) elt)
-		      ((symbolp elt) (mu-cite/get-value elt))
-		      )))
-	     list "")
-  )
+		      ((symbolp elt) (mu-cite-get-value elt)))))
+	     list ""))
 
 
 ;;; @ main function
 ;;;
 
-(defun mu-cite/cite-original ()
+;;;###autoload
+(defun mu-cite-original ()
   "Citing filter function.
 This is callable from the various mail and news readers' reply
 function according to the agreed upon standard."
   (interactive)
-  (mu-cite/make-methods)
+  (mu-cite-make-methods)
   (save-restriction
     (if (< (mark t) (point))
 	(exchange-point-and-mark))
     (narrow-to-region (point)(point-max))
-    (run-hooks 'mu-cite/pre-cite-hook)
+    (run-hooks 'mu-cite-pre-cite-hook)
     (let ((last-point (point))
-	  (top (mu-cite/eval-format mu-cite/top-format))
-	  (prefix (mu-cite/eval-format mu-cite/prefix-format))
-	  )
+	  (top (mu-cite-eval-format mu-cite-top-format))
+	  (prefix (mu-cite-eval-format mu-cite-prefix-format)))
       (if (re-search-forward "^-*$" nil nil)
-	  (forward-line 1)
-	)
+	  (forward-line 1))
       (widen)
       (delete-region last-point (point))
       (insert top)
       (setq last-point (point))
       (while (< (point)(mark t))
-	(or (looking-at mu-cite/cited-prefix-regexp)
+	(or (and mu-cite-cited-prefix-regexp
+		 (looking-at mu-cite-cited-prefix-regexp))
 	    (insert prefix))
 	(forward-line 1))
-      (goto-char last-point)
-      )
-    (run-hooks 'mu-cite/post-cite-hook)
-    ))
+      (goto-char last-point))
+    (run-hooks 'mu-cite-post-cite-hook)))
 
 
 ;;; @ message editing utilities
 ;;;
 
-(defvar citation-mark-chars ">}|"
-  "*String of characters for citation delimiter. [mu-cite.el]")
-
-(defvar citation-disable-chars "<{"
-  "*String of characters not allowed as citation-prefix.")
+(defcustom citation-mark-chars ">}|"
+  "String of characters for citation delimiter."
+  :type 'string
+  :group 'mu-cite)
+
+(defcustom citation-disable-chars "<{"
+  "String of characters not allowed as citation-prefix."
+  :type 'string
+  :group 'mu-cite)
+
+(eval-and-compile
+  ;; Don't use the function `char-category' which may have been
+  ;; defined by emu.el.  Anyway, the best way is not to use emu.el.
+  (if (and (fboundp 'char-category)
+	   (subrp (symbol-function 'char-category)))
+      (defalias 'mu-cite-char-category 'char-category)
+    (defun-maybe-cond mu-cite-char-category (character &optional table)
+      "Return a string of category mnemonics for CHARACTER in TABLE.
+CHARACTER can be any multilingual characters,
+TABLE defaults to the current buffer's category table (it is currently
+ignored)."
+      ((and (subr-fboundp 'char-category-set)
+	    (subr-fboundp 'category-set-mnemonics))
+       (category-set-mnemonics (char-category-set character)))
+      ((and (fboundp 'char-category-list)
+	    ;; `char-category-list' returns a list of characters
+	    ;; in XEmacs 21.2.25 and later, otherwise integers.
+	    (characterp (car-safe (char-category-list ?a))))
+       (concat (char-category-list character)))
+      ((fboundp 'char-category-list)
+       (mapconcat (lambda (chr)
+		    (char-to-string (int-char chr)))
+		  (char-category-list character)
+		  ""))
+      ((boundp 'NEMACS)
+       (if (< (char-int character) 128)
+	   "al"
+	 "j"))
+      (t
+       (if (< (char-int character) 128)
+	   "al"
+	 "l")))))
 
 (defun detect-paragraph-cited-prefix ()
   (save-excursion
     (goto-char (point-min))
     (let ((i 0)
 	  (prefix
-	   (buffer-substring
-	    (progn (beginning-of-line)(point))
-	    (progn (end-of-line)(point))
-	    ))
-	  str ret)
-      (while (and (= (forward-line) 0)
-		  (setq str (buffer-substring
-			     (progn (beginning-of-line)(point))
-			     (progn (end-of-line)(point))))
-		  (setq ret (string-compare-from-top prefix str))
-		  )
-	(setq prefix
-	      (if (stringp ret)
-		  ret
-		(second ret)))
-	(setq i (1+ i))
-	)
+	   (buffer-substring (line-beginning-position)
+			     (line-end-position))))
+      (let ((init prefix)
+	    str ret)
+	(while (and (= (forward-line) 0)
+		    (setq str (buffer-substring
+			       (progn (beginning-of-line)(point))
+			       (progn (end-of-line)(point))))
+		    (setq ret (string-compare-from-top prefix str)))
+	  (setq prefix
+		(if (stringp ret)
+		    ret
+		  (car (cdr ret))))
+	  (or (string-equal init prefix)
+	      (setq i (1+ i)))))
       (cond ((> i 1) prefix)
 	    ((> i 0)
 	     (goto-char (point-min))
@@ -433,60 +450,63 @@ function according to the agreed upon standard."
 		   (progn
 		     (goto-char (match-end 0))
 		     (if (looking-at "[ \t]+")
-			 (goto-char (match-end 0))
-		       )
-		     (buffer-substring (point-min)(point))
-		     )
+			 (goto-char (match-end 0)))
+		     (buffer-substring (point-min)(point)))
 		 prefix)))
 	    ((progn
 	       (goto-char (point-max))
 	       (re-search-backward
 		(concat "[" citation-disable-chars "]") nil t)
 	       (re-search-backward
-		(concat "[" citation-mark-chars "]") nil t)
-	       )
+		(concat "[" citation-mark-chars "]") nil t))
 	     (goto-char (match-end 0))
 	     (if (looking-at "[ \t]+")
-		 (goto-char (match-end 0))
-	       )
-	     (buffer-substring (point-min)(point))
-	     )
-	    (t ""))
-      )))
-
+		 (goto-char (match-end 0)))
+	     (buffer-substring (line-beginning-position)(point)))
+	    (t "")))))
+
+(defcustom fill-column-for-fill-cited-region nil
+  "Integer to override `fill-column' while `fill-cited-region' is being
+executed.  If you wish people call you ****-san, you may set the value
+of `fill-column' to 60 in the buffer for message sending and set this
+to 70. :-)"
+  :type `(choice (const :tag "Off" nil)
+		 (integer ,default-fill-column))
+  :group 'mu-cite)
+
+;;;###autoload
 (defun fill-cited-region (beg end)
+  "Fill each of the paragraphs in the region as a cited text."
   (interactive "*r")
   (save-excursion
     (save-restriction
       (goto-char end)
       (and (search-backward "\n" nil t)
-	   (setq end (match-end 0))
-	   )
+	   (setq end (match-end 0)))
       (narrow-to-region beg end)
       (let* ((fill-prefix (detect-paragraph-cited-prefix))
+	     (fill-column (max (+ 1 (current-left-margin)
+				  (string-width fill-prefix))
+			       (or fill-column-for-fill-cited-region
+				   (current-fill-column))))
 	     (pat (concat fill-prefix "\n"))
-	     )
+	     filladapt-mode)
 	(goto-char (point-min))
 	(while (search-forward pat nil t)
 	  (let ((b (match-beginning 0))
-		(e (match-end 0))
-		)
+		(e (match-end 0)))
 	    (delete-region b e)
 	    (if (and (> b (point-min))
-		     (let ((cat (char-category
-				 (char-before b))))
+		     (let ((cat (mu-cite-char-category (char-before b))))
 		       (or (string-match "a" cat)
-			   (string-match "l" cat)
-			   ))
-		     )
-		(insert " ")
-	      ))
-	  )
+			   (string-match "l" cat))))
+		(insert " "))))
 	(goto-char (point-min))
-	(fill-region (point-min) (point-max))
-	))))
+	(fill-region (point-min) (point-max))))))
 
+;;;###autoload
 (defun compress-cited-prefix ()
+  "Compress nested cited prefixes."
   (interactive)
   (save-excursion
     (goto-char (point-min))
@@ -501,29 +521,48 @@ function according to the agreed upon standard."
 	     ps pe (s 0)
 	     (nest (let ((i 0))
 		     (if (string-match "<[^<>]+>" prefix)
-			 (setq prefix (substring prefix 0 (match-beginning 0)))
-		       )
+			 (setq prefix
+			       (substring prefix 0 (match-beginning 0))))
 		     (while (string-match
 			     (concat "\\([" citation-mark-chars "]+\\)[ \t]*")
 			     prefix s)
 		       (setq i (+ i (- (match-end 1)(match-beginning 1)))
 			     ps s
 			     pe (match-beginning 1)
-			     s (match-end 0)
-			     ))
+			     s (match-end 0)))
 		     i)))
 	(if (and ps (< ps pe))
 	    (progn
 	      (delete-region b e)
-	      (insert (concat (substring prefix ps pe) (make-string nest ?>)))
-	      ))))))
+	      (insert (concat (substring prefix ps pe)
+			      (make-string nest ?>)))))
+	))))
 
 (defun replace-top-string (old new)
   (interactive "*sOld string: \nsNew string: ")
   (while (re-search-forward
-          (concat "^" (regexp-quote old)) nil t)
-    (replace-match new)
-    ))
+	  (concat "^" (regexp-quote old)) nil t)
+    (replace-match new)))
+
+(defun string-compare-from-top (str1 str2)
+  (let* ((len1 (length str1))
+	 (len2 (length str2))
+	 (len (min len1 len2))
+	 (p 0)
+	 c1 c2)
+    (while (and (< p len)
+		(progn
+		  (setq c1 (sref str1 p)
+			c2 (sref str2 p))
+		  (eq c1 c2)))
+      (setq p (char-next-index c1 p)))
+    (and (> p 0)
+	 (let ((matched (substring str1 0 p))
+	       (r1 (and (< p len1)(substring str1 p)))
+	       (r2 (and (< p len2)(substring str2 p))))
+	   (if (eq r1 r2)
+	       matched
+	     (list 'seq matched (list 'or r1 r2)))))))
 
 
 ;;; @ end