elmo/mmelmo.el

   1 ;;; mmelmo.el -- mm-backend by ELMO.
   2
   3 ;; Copyright 1998,1999,2000 Yuuichi Teranishi <teranisi@gohome.org>
   4
   5 ;; Author: Yuuichi Teranishi <teranisi@gohome.org>
   6 ;; Keywords: mail, net news
   7
   8 ;; This file is part of ELMO (Elisp Library for Message Orchestration).
   9
  10 ;; This program is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14 ;;
  15 ;; This program is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19 ;;
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24 ;;
  25
  26 ;;; Commentary:
  27 ;;
  28
  29 ;;; Code:
  30 ;;
  31
  32 (require 'elmo-vars)
  33 (require 'elmo-util)
  34 (require 'mime-parse)
  35 (require 'mmbuffer)
  36
  37 (defvar mmelmo-header-max-column fill-column
  38   "*Inserted header is folded with this value.
  39 If function is specified, its return value is used.")
  40
  41 (defvar mmelmo-header-inserted-hook nil
  42   "*A hook called when header is inserted.")
  43
  44 (defvar mmelmo-entity-content-inserted-hook nil
  45   "*A hook called when entity-content is inserted.")
  46
  47 (defun mmelmo-get-original-buffer ()
  48   (let ((ret-val (get-buffer (concat mmelmo-entity-buffer-name "0"))))
  49     (if (not ret-val)
  50         (save-excursion
  51           (set-buffer (setq ret-val
  52                             (get-buffer-create
  53                              (concat mmelmo-entity-buffer-name "0"))))
  54           (mmelmo-original-mode)))
  55     ret-val))
  56
  57 (defun mmelmo-cleanup-entity-buffers ()
  58   "Cleanup entity buffers of mmelmo."
  59   (mapcar (lambda (x)
  60             (if (string-match mmelmo-entity-buffer-name x)
  61                 (kill-buffer x)))
  62           (mapcar 'buffer-name (buffer-list))))
  63
  64 (defun mmelmo-insert-sorted-header-from-buffer (buffer
  65                                                 start end
  66                                                 &optional invisible-fields
  67                                                 visible-fields
  68                                                 sorted-fields)
  69   (let ((the-buf (current-buffer))
  70         (mode-obj (mime-find-field-presentation-method 'wide))
  71         field-decoder
  72         f-b p f-e field-name field field-body
  73         vf-alist (sl sorted-fields))
  74     (save-excursion
  75       (set-buffer buffer)
  76       (save-restriction
  77         (narrow-to-region start end)
  78         (goto-char start)
  79         (while (re-search-forward std11-field-head-regexp nil t)
  80           (setq f-b (match-beginning 0)
  81                 p (match-end 0)
  82                 field-name (buffer-substring f-b p)
  83                 f-e (std11-field-end))
  84           (when (mime-visible-field-p field-name
  85                                       visible-fields invisible-fields)
  86             (setq field (intern
  87                          (capitalize (buffer-substring f-b (1- p))))
  88                   field-body (buffer-substring p f-e)
  89                   field-decoder (inline (mime-find-field-decoder-internal
  90                                          field mode-obj)))
  91             (setq vf-alist (append (list
  92                                     (cons field-name
  93                                           (list field-body field-decoder)))
  94                                    vf-alist))))
  95         (and vf-alist
  96              (setq vf-alist
  97                    (sort vf-alist
  98                          (function (lambda (s d)
  99                                      (let ((n 0) re
 100                                            (sf (car s))
 101                                            (df (car d)))
 102                                        (catch 'done
 103                                          (while (setq re (nth n sl))
 104                                            (setq n (1+ n))
 105                                            (and (string-match re sf)
 106                                                 (throw 'done t))
 107                                            (and (string-match re df)
 108                                                 (throw 'done nil)))
 109                                          t)))))))
 110         (with-current-buffer the-buf
 111           (while vf-alist
 112             (let* ((vf (car vf-alist))
 113                    (field-name (car vf))
 114                    (field-body (car (cdr vf)))
 115                    (field-decoder (car (cdr (cdr vf)))))
 116               (insert field-name)
 117               (insert (if field-decoder
 118                           (funcall field-decoder field-body
 119                                    (string-width field-name)
 120                                    (if (functionp mmelmo-header-max-column)
 121                                        (funcall mmelmo-header-max-column)
 122                                      mmelmo-header-max-column))
 123                         ;; Don't decode
 124                         field-body))
 125               (insert "\n"))
 126             (setq vf-alist (cdr vf-alist)))
 127           (run-hooks 'mmelmo-header-inserted-hook))))))
 128
 129 (defun mmelmo-original-mode ()
 130   (setq major-mode 'mmelmo-original-mode)
 131   (setq buffer-read-only t)
 132   (elmo-set-buffer-multibyte nil)
 133   (setq mode-name "MMELMO-Original"))
 134
 135 ;; For FLIMs without rfc2231 feature .
 136 (if (not (fboundp 'mime-parse-parameters-from-list))
 137     (defun mime-parse-parameters-from-list (attrlist)
 138       (let (ret-val)
 139         (if (not (eq (% (length attrlist) 2) 0))
 140             (message "Invalid attributes."))
 141         (while attrlist
 142           (setq ret-val (append ret-val
 143                                 (list (cons (downcase (car attrlist))
 144                                             (downcase (car (cdr attrlist)))))))
 145           (setq attrlist (cdr (cdr attrlist))))
 146         ret-val)))
 147
 148 (provide 'mmelmo) ; for circular dependency.
 149 (static-if (fboundp 'luna-define-method)
 150     ;; FLIM 1.13 or later
 151     (require 'mmelmo-2)
 152   ;; FLIM 1.12
 153   (require 'mmelmo-1))
 154
 155
 156 ;;; mmelmo.el ends here