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;;; sieve-mode.el --- Sieve code editing commands for Emacs
;; Copyright (C) 2001-2012 Free Software Foundation, Inc.
;; Author: Simon Josefsson <simon@josefsson.org>
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file contain editing mode functions and font-lock support for
;; editing Sieve scripts. It sets up C-mode with support for
;; sieve-style #-comments and a lightly hacked syntax table. It was
;; strongly influenced by awk-mode.el.
;;
;; Put something similar to the following in your .emacs to use this file:
;;
;; (load "~/lisp/sieve")
;; (setq auto-mode-alist (cons '("\\.siv\\'" . sieve-mode) auto-mode-alist))
;;
;; References:
;;
;; RFC 3028,
;; "Sieve: A Mail Filtering Language",
;; by Tim Showalter.
;;
;; Release history:
;;
;; 2001-03-02 version 1.0 posted to gnu.emacs.sources
;; version 1.1 change file extension into ".siv" (official one)
;; added keymap and menubar to hook into sieve-manage
;; 2001-10-31 version 1.2 committed to Oort Gnus
;;; Code:
(autoload 'sieve-manage "sieve")
(autoload 'sieve-upload "sieve")
(eval-when-compile
(require 'font-lock))
(defgroup sieve nil
"Sieve."
:group 'languages)
(defcustom sieve-mode-hook nil
"Hook run in sieve mode buffers."
:group 'sieve
:type 'hook)
;; Font-lock
(defvar sieve-control-commands-face 'sieve-control-commands
"Face name used for Sieve Control Commands.")
(defface sieve-control-commands
'((((type tty) (class color)) (:foreground "blue" :weight light))
(((class grayscale) (background light)) (:foreground "LightGray" :bold t))
(((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
(((class color) (background light)) (:foreground "Orchid"))
(((class color) (background dark)) (:foreground "LightSteelBlue"))
(t (:bold t)))
"Face used for Sieve Control Commands."
:group 'sieve)
;; backward-compatibility alias
(put 'sieve-control-commands-face 'face-alias 'sieve-control-commands)
(put 'sieve-control-commands-face 'obsolete-face "22.1")
(defvar sieve-action-commands-face 'sieve-action-commands
"Face name used for Sieve Action Commands.")
(defface sieve-action-commands
'((((type tty) (class color)) (:foreground "blue" :weight bold))
(((class color) (background light)) (:foreground "Blue"))
(((class color) (background dark)) (:foreground "LightSkyBlue"))
(t (:inverse-video t :bold t)))
"Face used for Sieve Action Commands."
:group 'sieve)
;; backward-compatibility alias
(put 'sieve-action-commands-face 'face-alias 'sieve-action-commands)
(put 'sieve-action-commands-face 'obsolete-face "22.1")
(defvar sieve-test-commands-face 'sieve-test-commands
"Face name used for Sieve Test Commands.")
(defface sieve-test-commands
'((((type tty) (class color)) (:foreground "magenta"))
(((class grayscale) (background light))
(:foreground "LightGray" :bold t :underline t))
(((class grayscale) (background dark))
(:foreground "Gray50" :bold t :underline t))
(((class color) (background light)) (:foreground "CadetBlue"))
(((class color) (background dark)) (:foreground "Aquamarine"))
(t (:bold t :underline t)))
"Face used for Sieve Test Commands."
:group 'sieve)
;; backward-compatibility alias
(put 'sieve-test-commands-face 'face-alias 'sieve-test-commands)
(put 'sieve-test-commands-face 'obsolete-face "22.1")
(defvar sieve-tagged-arguments-face 'sieve-tagged-arguments
"Face name used for Sieve Tagged Arguments.")
(defface sieve-tagged-arguments
'((((type tty) (class color)) (:foreground "cyan" :weight bold))
(((class grayscale) (background light)) (:foreground "LightGray" :bold t))
(((class grayscale) (background dark)) (:foreground "DimGray" :bold t))
(((class color) (background light)) (:foreground "Purple"))
(((class color) (background dark)) (:foreground "Cyan"))
(t (:bold t)))
"Face used for Sieve Tagged Arguments."
:group 'sieve)
;; backward-compatibility alias
(put 'sieve-tagged-arguments-face 'face-alias 'sieve-tagged-arguments)
(put 'sieve-tagged-arguments-face 'obsolete-face "22.1")
(defconst sieve-font-lock-keywords
(eval-when-compile
(list
;; control commands
(cons (regexp-opt '("require" "if" "else" "elsif" "stop"))
'sieve-control-commands-face)
;; action commands
(cons (regexp-opt '("fileinto" "redirect" "reject" "keep" "discard"))
'sieve-action-commands-face)
;; test commands
(cons (regexp-opt '("address" "allof" "anyof" "exists" "false"
"true" "header" "not" "size" "envelope"))
'sieve-test-commands-face)
(cons "\\Sw+:\\sw+"
'sieve-tagged-arguments-face))))
;; Syntax table
(defvar sieve-mode-syntax-table nil
"Syntax table in use in sieve-mode buffers.")
(if sieve-mode-syntax-table
()
(setq sieve-mode-syntax-table (make-syntax-table))
(modify-syntax-entry ?\\ "\\" sieve-mode-syntax-table)
(modify-syntax-entry ?\n "> " sieve-mode-syntax-table)
(modify-syntax-entry ?\f "> " sieve-mode-syntax-table)
(modify-syntax-entry ?\# "< " sieve-mode-syntax-table)
(modify-syntax-entry ?/ "." sieve-mode-syntax-table)
(modify-syntax-entry ?* "." sieve-mode-syntax-table)
(modify-syntax-entry ?+ "." sieve-mode-syntax-table)
(modify-syntax-entry ?- "." sieve-mode-syntax-table)
(modify-syntax-entry ?= "." sieve-mode-syntax-table)
(modify-syntax-entry ?% "." sieve-mode-syntax-table)
(modify-syntax-entry ?< "." sieve-mode-syntax-table)
(modify-syntax-entry ?> "." sieve-mode-syntax-table)
(modify-syntax-entry ?& "." sieve-mode-syntax-table)
(modify-syntax-entry ?| "." sieve-mode-syntax-table)
(modify-syntax-entry ?_ "_" sieve-mode-syntax-table)
(modify-syntax-entry ?\' "\"" sieve-mode-syntax-table))
;; Key map definition
(defvar sieve-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "\C-c\C-l" 'sieve-upload)
(define-key map "\C-c\C-c" 'sieve-upload-and-bury)
(define-key map "\C-c\C-m" 'sieve-manage)
map)
"Key map used in sieve mode.")
;; Menu definition
(defvar sieve-mode-menu nil
"Menubar used in sieve mode.")
;; Code for Sieve editing mode.
(autoload 'easy-menu-add-item "easymenu")
;;;###autoload
(define-derived-mode sieve-mode c-mode "Sieve"
"Major mode for editing Sieve code.
This is much like C mode except for the syntax of comments. Its keymap
inherits from C mode's and it has the same variables for customizing
indentation. It has its own abbrev table and its own syntax table.
Turning on Sieve mode runs `sieve-mode-hook'."
(set (make-local-variable 'paragraph-start) (concat "$\\|" page-delimiter))
(set (make-local-variable 'paragraph-separate) paragraph-start)
(set (make-local-variable 'comment-start) "#")
(set (make-local-variable 'comment-end) "")
;;(set (make-local-variable 'comment-start-skip) "\\(^\\|\\s-\\);?#+ *")
(set (make-local-variable 'comment-start-skip) "#+ *")
(unless (featurep 'xemacs)
(set (make-local-variable 'font-lock-defaults)
'(sieve-font-lock-keywords nil nil ((?_ . "w")))))
(easy-menu-add-item nil nil sieve-mode-menu))
;; Menu
(easy-menu-define sieve-mode-menu sieve-mode-map
"Sieve Menu."
'("Sieve"
["Upload script" sieve-upload t]
["Manage scripts on server" sieve-manage t]))
(provide 'sieve-mode)
;; sieve-mode.el ends here
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