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 2, 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" "(1E(BR" t
59 "Lao input method using LRT (Lao Roman Transcription).
60`\\' (backslash) + number-key	=> (1p(B,(1q(B,(1r(B,...	LAO DIGIT ZERO, ONE, TWO, ...
61`\\' (backslash) + `\\'		=> (1f(B		LAO KO LA (REPETITION)
62`\\' (backslash) + `$'		=> (1O(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
85