leim/quail/lrt.el

   1 ;;; lrt.el --- Quail package for inputting Lao characters by LRT method  -*-coding: iso-2022-7bit;-*-
   2
   3 ;; Copyright (C) 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007
   4 ;;   Free Software Foundation, Inc.
   5 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   6 ;;   2006, 2007
   7 ;;   National Institute of Advanced Industrial Science and Technology (AIST)
   8 ;;   Registration Number H14PRO021
   9
  10 ;; Keywords: multilingual, input method, Lao, LRT.
  11
  12 ;; This file is part of GNU Emacs.
  13
  14 ;; GNU Emacs is free software; you can redistribute it and/or modify
  15 ;; it under the terms of the GNU General Public License as published by
  16 ;; the Free Software Foundation; either version 3, or (at your option)
  17 ;; any later version.
  18
  19 ;; GNU Emacs is distributed in the hope that it will be useful,
  20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;; GNU General Public License for more details.
  23
  24 ;; You should have received a copy of the GNU General Public License
  25 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  26 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  27 ;; Boston, MA 02110-1301, USA.
  28
  29 ;;; Commentary:
  30
  31 ;;; Code:
  32
  33 (require 'quail)
  34 (require 'lao-util)
  35
  36 ;; LRT (Lao Roman Transcription) input method accepts the following
  37 ;; key sequence:
  38 ;;      consonant [+ semi-vowel-sign-lo ] + vowel [+ maa-sakod ] [+ tone-mark ]
  39
  40 (defun quail-lao-update-translation (control-flag)
  41   (if (integerp control-flag)
  42       ;; Non-composable character typed.
  43       (setq quail-current-str
  44             (buffer-substring (overlay-start quail-overlay)
  45                               (overlay-end quail-overlay))
  46             unread-command-events
  47             (string-to-list
  48              (substring quail-current-key control-flag)))
  49     (let ((lao-str (lao-transcribe-roman-to-lao-string quail-current-key)))
  50       (if (> (aref lao-str 0) 255)
  51           (setq quail-current-str lao-str)
  52         (or quail-current-str
  53             (setq quail-current-str quail-current-key)))))
  54   control-flag)
  55
  56
  57 (quail-define-package
  58  "lao-lrt" "Lao" "\e(1E\e(BR" t
  59  "Lao input method using LRT (Lao Roman Transcription).
  60 `\\' (backslash) + number-key   => \e(1p\e(B,\e(1q\e(B,\e(1r\e(B,...  LAO DIGIT ZERO, ONE, TWO, ...
  61 `\\' (backslash) + `\\'         => \e(1f\e(B              LAO KO LA (REPETITION)
  62 `\\' (backslash) + `$'          => \e(1O\e(B              LAO ELLIPSIS
  63 "
  64  nil 'forget-last-selection 'deterministic 'kbd-translate 'show-layout
  65   nil nil nil 'quail-lao-update-translation nil t)
  66
  67 ;; LRT (Lao Roman Transcription) input method accepts the following
  68 ;; key sequence:
  69 ;;      consonant [ semi-vowel-sign-lo ] vowel [ maa-sakod ] [ tone-mark ]
  70
  71 (quail-install-map
  72  (quail-map-from-table
  73   '((base-state (lao-transcription-consonant-alist . sv-state)
  74                 lao-transcription-vowel-alist
  75                 lao-transcription-tone-alist)
  76     (sv-state (lao-transcription-semi-vowel-alist . v-state)
  77               (lao-transcription-vowel-alist . mt-state))
  78     (v-state (lao-transcription-vowel-alist . mt-state))
  79     (mt-state (lao-transcription-maa-sakod-alist . t-state)
  80               lao-transcription-tone-alist)
  81     (t-state lao-transcription-tone-alist))))
  82
  83 ;;; arch-tag: f65e4038-e187-4906-997b-d2de7ed813d2
  84 ;;; lrt.el ends here