lisp/gnus/sieve-mode.el

   1 ;;; sieve-mode.el --- Sieve code editing commands for Emacs
   2
   3 ;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
   4 ;;   2010  Free Software Foundation, Inc.
   5
   6 ;; Author: Simon Josefsson <simon@josefsson.org>
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs 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 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs 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.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;; This file contain editing mode functions and font-lock support for
  26 ;; editing Sieve scripts.  It sets up C-mode with support for
  27 ;; sieve-style #-comments and a lightly hacked syntax table.  It was
  28 ;; strongly influenced by awk-mode.el.
  29 ;;
  30 ;; Put something similar to the following in your .emacs to use this file:
  31 ;;
  32 ;; (load "~/lisp/sieve")
  33 ;; (setq auto-mode-alist (cons '("\\.siv\\'" . sieve-mode) auto-mode-alist))
  34 ;;
  35 ;; References:
  36 ;;
  37 ;; RFC 3028,
  38 ;; "Sieve: A Mail Filtering Language",
  39 ;; by Tim Showalter.
  40 ;;
  41 ;; Release history:
  42 ;;
  43 ;; 2001-03-02 version 1.0 posted to gnu.emacs.sources
  44 ;;            version 1.1 change file extension into ".siv" (official one)
  45 ;;                        added keymap and menubar to hook into sieve-manage
  46 ;; 2001-10-31 version 1.2 committed to Oort Gnus
  47
  48 ;;; Code:
  49
  50 (autoload 'sieve-manage "sieve")
  51 (autoload 'sieve-upload "sieve")
  52 (eval-when-compile
  53   (require 'font-lock))
  54
  55 (defgroup sieve nil
  56   "Sieve."
  57   :group 'languages)
  58
  59 (defcustom sieve-mode-hook nil
  60   "Hook run in sieve mode buffers."
  61   :group 'sieve
  62   :type 'hook)
  63
  64 ;; Font-lock
  65
  66 (defvar sieve-control-commands-face 'sieve-control-commands
  67   "Face name used for Sieve Control Commands.")
  68
  69 (defface sieve-control-commands
  70   '((((type tty) (class color)) (:foreground "blue" :weight light))
  71     (((class grayscale) (background light)) (:foreground "LightGray" :bold t))
  72     (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
  73     (((class color) (background light)) (:foreground "Orchid"))
  74     (((class color) (background dark)) (:foreground "LightSteelBlue"))
  75     (t (:bold t)))
  76   "Face used for Sieve Control Commands."
  77   :group 'sieve)
  78 ;; backward-compatibility alias
  79 (put 'sieve-control-commands-face 'face-alias 'sieve-control-commands)
  80 (put 'sieve-control-commands-face 'obsolete-face "22.1")
  81
  82 (defvar sieve-action-commands-face 'sieve-action-commands
  83   "Face name used for Sieve Action Commands.")
  84
  85 (defface sieve-action-commands
  86   '((((type tty) (class color)) (:foreground "blue" :weight bold))
  87     (((class color) (background light)) (:foreground "Blue"))
  88     (((class color) (background dark)) (:foreground "LightSkyBlue"))
  89     (t (:inverse-video t :bold t)))
  90   "Face used for Sieve Action Commands."
  91   :group 'sieve)
  92 ;; backward-compatibility alias
  93 (put 'sieve-action-commands-face 'face-alias 'sieve-action-commands)
  94 (put 'sieve-action-commands-face 'obsolete-face "22.1")
  95
  96 (defvar sieve-test-commands-face 'sieve-test-commands
  97   "Face name used for Sieve Test Commands.")
  98
  99 (defface sieve-test-commands
 100   '((((type tty) (class color)) (:foreground "magenta"))
 101     (((class grayscale) (background light))
 102      (:foreground "LightGray" :bold t :underline t))
 103     (((class grayscale) (background dark))
 104      (:foreground "Gray50" :bold t :underline t))
 105     (((class color) (background light)) (:foreground "CadetBlue"))
 106     (((class color) (background dark)) (:foreground "Aquamarine"))
 107     (t (:bold t :underline t)))
 108   "Face used for Sieve Test Commands."
 109   :group 'sieve)
 110 ;; backward-compatibility alias
 111 (put 'sieve-test-commands-face 'face-alias 'sieve-test-commands)
 112 (put 'sieve-test-commands-face 'obsolete-face "22.1")
 113
 114 (defvar sieve-tagged-arguments-face 'sieve-tagged-arguments
 115   "Face name used for Sieve Tagged Arguments.")
 116
 117 (defface sieve-tagged-arguments
 118   '((((type tty) (class color)) (:foreground "cyan" :weight bold))
 119     (((class grayscale) (background light)) (:foreground "LightGray" :bold t))
 120     (((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
 121     (((class color) (background light)) (:foreground "Purple"))
 122     (((class color) (background dark)) (:foreground "Cyan"))
 123     (t (:bold t)))
 124   "Face used for Sieve Tagged Arguments."
 125   :group 'sieve)
 126 ;; backward-compatibility alias
 127 (put 'sieve-tagged-arguments-face 'face-alias 'sieve-tagged-arguments)
 128 (put 'sieve-tagged-arguments-face 'obsolete-face "22.1")
 129
 130
 131 (defconst sieve-font-lock-keywords
 132   (eval-when-compile
 133     (list
 134      ;; control commands
 135      (cons (regexp-opt '("require" "if" "else" "elsif" "stop"))
 136            'sieve-control-commands-face)
 137      ;; action commands
 138      (cons (regexp-opt '("fileinto" "redirect" "reject" "keep" "discard"))
 139            'sieve-action-commands-face)
 140      ;; test commands
 141      (cons (regexp-opt '("address" "allof" "anyof" "exists" "false"
 142                          "true" "header" "not" "size" "envelope"))
 143            'sieve-test-commands-face)
 144      (cons "\\Sw+:\\sw+"
 145            'sieve-tagged-arguments-face))))
 146
 147 ;; Syntax table
 148
 149 (defvar sieve-mode-syntax-table nil
 150   "Syntax table in use in sieve-mode buffers.")
 151
 152 (if sieve-mode-syntax-table
 153     ()
 154   (setq sieve-mode-syntax-table (make-syntax-table))
 155   (modify-syntax-entry ?\\ "\\" sieve-mode-syntax-table)
 156   (modify-syntax-entry ?\n ">   " sieve-mode-syntax-table)
 157   (modify-syntax-entry ?\f ">   " sieve-mode-syntax-table)
 158   (modify-syntax-entry ?\# "<   " sieve-mode-syntax-table)
 159   (modify-syntax-entry ?/ "." sieve-mode-syntax-table)
 160   (modify-syntax-entry ?* "." sieve-mode-syntax-table)
 161   (modify-syntax-entry ?+ "." sieve-mode-syntax-table)
 162   (modify-syntax-entry ?- "." sieve-mode-syntax-table)
 163   (modify-syntax-entry ?= "." sieve-mode-syntax-table)
 164   (modify-syntax-entry ?% "." sieve-mode-syntax-table)
 165   (modify-syntax-entry ?< "." sieve-mode-syntax-table)
 166   (modify-syntax-entry ?> "." sieve-mode-syntax-table)
 167   (modify-syntax-entry ?& "." sieve-mode-syntax-table)
 168   (modify-syntax-entry ?| "." sieve-mode-syntax-table)
 169   (modify-syntax-entry ?_ "_" sieve-mode-syntax-table)
 170   (modify-syntax-entry ?\' "\"" sieve-mode-syntax-table))
 171
 172 ;; Key map definition
 173
 174 (defvar sieve-mode-map
 175   (let ((map (make-sparse-keymap)))
 176     (define-key map "\C-c\C-l" 'sieve-upload)
 177     (define-key map "\C-c\C-c" 'sieve-upload-and-bury)
 178     (define-key map "\C-c\C-m" 'sieve-manage)
 179     map)
 180   "Key map used in sieve mode.")
 181
 182 ;; Menu definition
 183
 184 (defvar sieve-mode-menu nil
 185   "Menubar used in sieve mode.")
 186
 187 ;; Code for Sieve editing mode.
 188 (autoload 'easy-menu-add-item "easymenu")
 189
 190 ;;;###autoload
 191 (define-derived-mode sieve-mode c-mode "Sieve"
 192   "Major mode for editing Sieve code.
 193 This is much like C mode except for the syntax of comments.  Its keymap
 194 inherits from C mode's and it has the same variables for customizing
 195 indentation.  It has its own abbrev table and its own syntax table.
 196
 197 Turning on Sieve mode runs `sieve-mode-hook'."
 198   (set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter))
 199   (set (make-local-variable 'paragraph-separate) paragraph-start)
 200   (set (make-local-variable 'comment-start) "#")
 201   (set (make-local-variable 'comment-end) "")
 202   ;;(set (make-local-variable 'comment-start-skip) "\\(^\\|\\s-\\);?#+ *")
 203   (set (make-local-variable 'comment-start-skip) "#+ *")
 204   (unless (featurep 'xemacs)
 205     (set (make-local-variable 'font-lock-defaults)
 206          '(sieve-font-lock-keywords nil nil ((?_ . "w")))))
 207   (easy-menu-add-item nil nil sieve-mode-menu))
 208
 209 ;; Menu
 210
 211 (easy-menu-define sieve-mode-menu sieve-mode-map
 212   "Sieve Menu."
 213   '("Sieve"
 214     ["Upload script" sieve-upload t]
 215     ["Manage scripts on server" sieve-manage t]))
 216
 217 (provide 'sieve-mode)
 218
 219 ;; sieve-mode.el ends here