Release MU-CITE 8.1.

[elisp/mu-cite.git] / mu-cite.el

diff --git a/mu-cite.el b/mu-cite.el
index bdc9d41..6c21aff 100644 (file)
--- a/mu-cite.el
+++ b/mu-cite.el
@@ -1,12 +1,10 @@
 ;;; mu-cite.el --- yet another citation tool for GNU Emacs
 
 ;;; mu-cite.el --- yet another citation tool for GNU Emacs
 

-;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
+;; Copyright (C) 1995,1996,1997,1998,1999 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: 7.51 $
+;; 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).
 ;; Keywords: mail, news, citation
 
 ;; This file is part of MU (Message Utilities).

@@ -29,406 +27,397 @@
 ;;; Commentary:
 
 ;; - How to use
 ;;; 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
 ;;             ;; 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
 ;;             ;; 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
 ;;             ;; 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
 ;;             ;; for mh-e only

-;;             (add-hook 'mh-yank-hooks (function mu-cite/cite-original))
+;;             (add-hook 'mh-yank-hooks (function mu-cite-original))

 
 ;;; Code:
 
 
 ;;; Code:
 

+;; Pickup some macros, e.g. `with-temp-buffer', for old Emacsen.
+(require 'poe)
+
+(require 'pcustom)

 (require 'std11)
 (require 'std11)

-;;(require 'tl-str)
-;;(require 'tl-list)

 (require 'alist)
 
 (require 'alist)
 

+(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")

 
 

-;;; @ version
-;;;
-
-(defsubst get-version-string (id)
-  "Return a version-string from RCS ID."
-  (and (string-match ",v \\([0-9][0-9.][0-9.]+\\)" id)
-       (substring id (match-beginning 1)(match-end 1))
-       ))
-
-(defconst mu-cite/RCS-ID
-  "$Id: mu-cite.el,v 7.51 1998/02/13 10:11:54 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.")
-
-(defvar mu-cite/post-cite-hook nil
-  "*List of functions called after citing a region of text.")
+(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")

 
 
 
 

-;;; @ field
+;;; @ version

 ;;;
 
 ;;;
 

-(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)
-  (or (std11-field-body name)
-      (let ((method (assq major-mode mu-cite/get-field-value-method-alist)))
-       (if method
-           (funcall (cdr method) name)
-         ))))
+(defconst mu-cite-version "8.1")

 
 
 
 

-;;; @ prefix registration
+;;; @ macro

 ;;;
 
 ;;;
 

-(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)
-  (cdr (assoc 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))))
+(defmacro mu-cite-remove-text-properties (string)
+  "Remove text properties from STRING which is read from minibuffer."
+  (if (or (featurep 'xemacs)
+         (boundp 'minibuffer-allow-text-properties);; Emacs 20.1 or later.
+         (not (fboundp 'set-text-properties)));; under Emacs 19.7.
+      string
+    (` (let ((obj (copy-sequence (, string))))
+        (set-text-properties 0 (length obj) nil obj)
+        obj))))

 
 
 
 

-;;; @ item methods
+;;; @ set up

 ;;;
 
 ;;;
 

-;;; @@ ML count
-;;;
+(defgroup mu-cite nil
+  "Yet another citation tool for GNU Emacs."
+  :prefix "mu-cite-"
+  :group 'mail
+  :group 'news)

 
 

-(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
-;;;
-
-(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
-;;;
-
-(defvar mu-cite/default-methods-alist
+(defvar mu-cite-default-methods-alist

   (list (cons 'from
              (function
               (lambda ()
   (list (cons 'from
              (function
               (lambda ()

-                (mu-cite/get-field-value "From")
-                )))
+                (mu-cite-get-field-value "From"))))

        (cons 'date
              (function
               (lambda ()
        (cons 'date
              (function
               (lambda ()

-                (mu-cite/get-field-value "Date")
-                )))
+                (mu-cite-get-field-value "Date"))))

        (cons 'message-id
              (function
               (lambda ()
        (cons 'message-id
              (function
               (lambda ()

-                (mu-cite/get-field-value "Message-Id")
-                )))
+                (mu-cite-get-field-value "Message-Id"))))

        (cons 'subject
              (function
               (lambda ()
        (cons 'subject
              (function
               (lambda ()

-                (mu-cite/get-field-value "Subject")
-                )))
+                (mu-cite-get-field-value "Subject"))))

        (cons 'ml-name
              (function
               (lambda ()
        (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
        (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
        (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
        (cons 'address
              (function
               (lambda ()
                 (std11-address-string

-                 (mu-cite/get-value 'address-structure))
-                )))
+                 (mu-cite-get-value 'address-structure)))))

        (cons 'id
              (function
               (lambda ()
        (cons 'id
              (function
               (lambda ()

-                (let ((ml-name (mu-cite/get-value 'ml-name)))
+                (let ((ml-name (mu-cite-get-value 'ml-name)))

                   (if ml-name
                       (concat "["
                               ml-name
                               " : No."
                   (if ml-name
                       (concat "["
                               ml-name
                               " : No."

-                              (mu-cite/get-value 'ml-count)
+                              (mu-cite-get-value 'ml-count)

                               "]")
                               "]")

-                    (mu-cite/get-value 'message-id)
-                    )))))
+                    (mu-cite-get-value 'message-id))))))

        (cons 'in-id
              (function
               (lambda ()
        (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)
                     "")))))
                   (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 ()
        (cons 'x-attribution
              (function
               (lambda ()

-                 (mu-cite/get-field-value "X-Attribution")
-                )))
+                (mu-cite-get-field-value "X-Attribution"))))
+       ;; 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
 ;;;
 
 ;;; @ 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 (cdr (assoc 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
     (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)))
 
       ret)))
 

-(defun mu-cite/eval-format (list)
-  (save-excursion
-    (mapconcat (function
-               (lambda (elt)
-                 (cond ((stringp elt) elt)
-                       ((symbolp elt) (mu-cite/get-value elt))
-                       )))
-              list "")
-    ))
+(defun mu-cite-eval-format (list)
+  (mapconcat (function
+             (lambda (elt)
+               (cond ((stringp elt) elt)
+                     ((symbolp elt) (mu-cite-get-value elt)))))
+            list ""))

 
 
 ;;; @ main function
 ;;;
 
 
 
 ;;; @ 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)
   "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))
   (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))
     (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 "^-*$" nil nil)
       (if (re-search-forward "^-*$" nil nil)

-         (forward-line 1)
-       )
+         (forward-line 1))

       (widen)
       (delete-region last-point (point))
       (insert top)
       (setq last-point (point))
       (while (< (point)(mark t))
       (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 (looking-at mu-cite-cited-prefix-regexp)

            (insert prefix))
        (forward-line 1))
            (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
 ;;;
 
 
 
 ;;; @ 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)
+
+(defun-maybe-cond char-category (character)
+  "Return a string of category mnemonics for CHAR in TABLE.
+CHAR can be any multilingual character,
+TABLE defaults to the current buffer's category table."
+  ((and (subr-fboundp 'char-category-set)
+       (subr-fboundp 'category-set-mnemonics))
+   (category-set-mnemonics (char-category-set 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
 
 (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
-               (cadr 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))
       (cond ((> i 1) prefix)
            ((> i 0)
             (goto-char (point-min))

@@ -441,60 +430,54 @@ function according to the agreed upon standard."
                   (progn
                     (goto-char (match-end 0))
                     (if (looking-at "[ \t]+")
                   (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
                 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))
             (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 "")))))

 
 

+;;;###autoload

 (defun fill-cited-region (beg end)
 (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)
   (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))
       (narrow-to-region beg end)
       (let* ((fill-prefix (detect-paragraph-cited-prefix))

+            (fill-column (max (+ 1 (current-left-margin)
+                                 (string-width fill-prefix))
+                              (current-fill-column)))

             (pat (concat fill-prefix "\n"))
             (pat (concat fill-prefix "\n"))

-            )
+            filladapt-mode)

        (goto-char (point-min))
        (while (search-forward pat nil t)
          (let ((b (match-beginning 0))
        (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))))
                       (or (string-match "a" cat)
            (delete-region b e)
            (if (and (> b (point-min))
                     (let ((cat (char-category
                                 (char-before b))))
                       (or (string-match "a" cat)

-                          (string-match "l" cat)
-                          ))
-                    )
-               (insert " ")
-             ))
-         )
+                          (string-match "l" cat))))
+               (insert " "))))

        (goto-char (point-min))
        (goto-char (point-min))

-       (fill-region (point-min) (point-max))
-       ))))
+       (fill-region (point-min) (point-max))))))

 
 

+;;;###autoload

 (defun compress-cited-prefix ()
 (defun compress-cited-prefix ()

+  "Compress nested cited prefixes."

   (interactive)
   (save-excursion
     (goto-char (point-min))
   (interactive)
   (save-excursion
     (goto-char (point-min))

@@ -509,29 +492,28 @@ function according to the agreed upon standard."
             ps pe (s 0)
             (nest (let ((i 0))
                     (if (string-match "<[^<>]+>" prefix)
             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)
                     (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)
                     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
 
 (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))
 
 (defun string-compare-from-top (str1 str2)
   (let* ((len1 (length str1))

@@ -543,19 +525,15 @@ function according to the agreed upon standard."
                (progn
                  (setq c1 (sref str1 p)
                        c2 (sref str2 p))
                (progn
                  (setq c1 (sref str1 p)
                        c2 (sref str2 p))

-                 (eq c1 c2)
-                 ))
-      (setq p (+ p (char-length c1)))
-      )
+                 (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)))
     (and (> p 0)
         (let ((matched (substring str1 0 p))
               (r1 (and (< p len1)(substring str1 p)))

-              (r2 (and (< p len2)(substring str2 p)))
-              )
+              (r2 (and (< p len2)(substring str2 p))))

           (if (eq r1 r2)
               matched
           (if (eq r1 r2)
               matched

-            (list 'seq matched (list 'or r1 r2))
-            )))))
+            (list 'seq matched (list 'or r1 r2)))))))

 
 
 ;;; @ end
 
 
 ;;; @ end