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1 ;;; devan-util.el --- support for Devanagari Script Composition -*- coding: iso-2022-7bit; -*-
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2
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3 ;; Copyright (C) 1996, 2001 Free Software Foundation, Inc.
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4
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5 ;; Author: KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
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6
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7 ;; Keywords: multilingual, Indian, Devanagari
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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24 ;; 02111-1307, USA.
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25
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778
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26 ;;; Synched up with: Emacs 21.1 (language/devan-util.el).
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27
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28 ;;; Commentary:
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29
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30 ;; History:
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31 ;; 1996.10.18 written by KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
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32 ;; 1997.3.24 fixed some bugs.
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33
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34 ;; Future work ::
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35 ;; Decompose the input characters and process them on the character basis.
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36
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37 ;; Devanagari script composition rules and related programs.
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38
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39 ;;; Code:
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40
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41 ;;;
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42 ;;; Steps toward composition of Devanagari Characters.
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43 ;;;
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44
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45 ;;; Basic functions.
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46
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47 ;;;###autoload
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48 (defun indian-to-devanagari (char)
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49 "Convert IS 13194 character CHAR to Devanagari basic characters.
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50 If CHAR is not IS 13194, return CHAR as is."
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51 (let ((charcodes (split-char char)))
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52 (if (eq (car charcodes) 'indian-is13194)
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53 (make-char 'indian-2-column ?\x21 (nth 1 charcodes))
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54 char)))
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55
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56 ;;;###autoload
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57 (defun devanagari-to-indian (char)
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58 "Convert Devanagari basic character CHAR to IS 13194 characters.
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59 If CHAR is not Devanagari basic character, return CHAR as is."
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60 (let ((charcodes (split-char char)))
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61 (if (and (eq (car charcodes) 'indian-2-column)
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62 (= (nth 1 charcodes) ?\x21))
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63 (make-char 'indian-is13194 (nth 2 charcodes))
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64 char)))
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65
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66 ;;;###autoload
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67 (defun indian-to-devanagari-region (from to)
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68 "Convert IS 13194 characters in region to Devanagari basic characters.
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69 When called from a program, expects two arguments,
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70 positions (integers or markers) specifying the region."
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71 (interactive "r")
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72 (save-excursion
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73 (goto-char from)
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74 (while (< (point) to)
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75 (let ((char (following-char)))
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76 (if (eq (char-charset char) 'indian-is13194)
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77 (progn
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78 (delete-char 1)
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79 (insert (indian-to-devanagari char)))
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80 (forward-char 1))))))
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81
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82 ;;;###autoload
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83 (defun devanagari-to-indian-region (from to)
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84 "Convert Devanagari basic characters in region to Indian characters.
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85 When called from a program, expects two arguments,
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86 positions (integers or markers) specifying the region."
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87 (interactive "r")
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88 (save-excursion
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89 (goto-char from)
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90 (while (< (point) to)
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91 (let ((char (following-char)))
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92 (if (eq (char-charset char) 'indian-2-column)
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93 (progn
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94 (delete-char 1)
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95 (insert (devanagari-to-indian char)))
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96 (forward-char 1))))))
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97
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98 ;;;###autoload
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99 (defun indian-to-devanagari-string (string)
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100 "Convert Indian characters in STRING to Devanagari Basic characters."
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101 (let* ((len (length string))
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102 (i 0)
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103 (vec (make-vector len 0)))
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104 (while (< i len)
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105 (aset vec i (indian-to-devanagari (aref string i)))
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106 (setq i (1+ i)))
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107 (concat vec)))
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108
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109 ;; Phase 0 - Determine whether the characters can be composed.
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110 ;;
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111 ;;;
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112 ;;; Regular expressions to split characters for composition.
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113 ;;;
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114 ;;
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115 ;; Indian script word contains one or more syllables.
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116 ;; In BNF, it can be expressed as follows:
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117 ;;
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118 ;; Word ::= {Syllable} [Cons-Syllable]
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119 ;; Syllable ::= Cons-Vowel-Syllable | Vowel-Syllable
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120 ;; Vowel-Syllable ::= V[D]
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121 ;; Cons-Vowel-Syllable ::= [Cons-Syllable] Full-Cons [M] [D]
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122 ;; Cons-Syllable ::= [Pure-Cons] [Pure-Cons] [Pure-Cons] Pure-Cons
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123 ;; Pure-Cons ::= Full-Cons H
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124 ;; Full-Cons ::= C [N]
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125 ;;
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126 ;; {} repeat, [] optional
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127 ;;
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128 ;; C - Consonant ($(5!3!4!5!6!7!8!9!:!;!<!=!>!?!@!A!B!C!D!E(B
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129 ;; $(5!F!G!H!I!J!K!L!M!N!O!P!Q!R!S!T!U!V!W!X(B)
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130 ;; N - Nukta ($(5!i(B)
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131 ;; H - Halant($(5!h(B) or Virama
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132 ;; V - Vowel ($(5!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2#&#'#*(B)
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133 ;; ("$(5#&#'#*(B" can be obtained by IS13194 vowels with nukta.)
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134 ;; D - Vowel Modifiers, i.e. Anuswar, Chandrabindu ($(5!!!"(B)
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135 ;; (Visaraga ($(5!#(B) is excluded.)
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136 ;; M - Matra ($(5!Z![!\!]!^!_!`!a!b!c!d!e!f!g#K#L#M(B)
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137 ;; ("$(5#K#L#M(B" can be obtained by IS13194 matras with nukta.)
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138 ;;
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139 ;; In Emacs, one syllable of Indian language is considered to be one
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140 ;; composite glyph. If we expand the above expression for
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141 ;; cons-vowel-syllable, it would be:
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142 ;;
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143 ;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] [D]
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144 ;;
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145 ;; Therefore, in worst case, the one syllable may contain
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146 ;; following characters.
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147 ;;
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148 ;; C N H C N H C N H C N H C N M D
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149 ;;
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150 ;; The example is a sanskrit word "kArtsnya", where five consecutive
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151 ;; consonants appear.
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152 ;;
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153 ;; On the other hand, consonant-syllable, which appears at the end of
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154 ;; the word, would have the following expression:
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155 ;;
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156 ;; [C [N] H] [C [N] H] [C [N] H] C [N] H
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157 ;;
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158 ;; This is acceptable BEFORE proper consonant-syllable is input. The
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159 ;; string which doesn't match with the above expression is invalid and
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160 ;; thus must be fixed.
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161 ;;
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162 ;; Note:
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163 ;; Third case can be considered, which is an acceptable syllable and can
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164 ;; not add any code more.
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165 ;;
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166 ;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] D
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167 ;;
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168 ;; However, to make editing possible even in this condition, we will
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169 ;; not consider about this case.
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170 ;;
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171 ;; Note:
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172 ;; Currently, it seems that the only following consonants would have
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173 ;; Nukta sign attatched.
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174 ;; ($(5!3!4!5!:!?!@!I(B)
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175 ;; Therefore, [$(5!3(B-$(5!X(B]$(5!i(B? can be re-written as
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176 ;; \\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X(B]
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177
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178 (defconst devanagari-full-cons
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179 "\\(\\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X$.$E"%(B]\\)"
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180 "Devanagari full consonant")
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181
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182 (defconst devanagari-pure-cons
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183 (concat "\\(" devanagari-full-cons "$(5!h(B\\)")
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184 "Devanagari pure consonant")
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185
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186 (defconst devanagari-matra
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187 "\\(\\([$(5!_![!\(B]$(5!i(B\\)\\|[$(5!Z(B-$(5!g#K#L#M(B]\\)"
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188 "Devanagari Matra Signs. '$(5#K#L#M(B' can also be created from the combination
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189 of '$(5!_![!\(B' and nukta sign.")
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190
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191 (defconst devanagari-vowel
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192 "\\(\\([$(5!*!&!'(B]$(5!i(B\\)\\|[$(5!$(B-$(5!2#&#'#*(B]\\)"
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193 "Devanagari Vowels. '$(5#&#'#*(B' can also be created from the combination
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194 of '$(5!*!&!'(B' and nukta sign.")
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195
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196 (defconst devanagari-vowel-syllable
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197 (concat devanagari-vowel "[$(5!!!"(B]?")
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198 "Devanagari vowel syllable.")
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199
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200 (defconst devanagari-cons-syllable
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201 (concat devanagari-pure-cons "?" devanagari-pure-cons "?"
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202 devanagari-pure-cons "?" devanagari-pure-cons "$")
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203 "Devanagari consonant syllable")
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204
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205 (defconst devanagari-cons-vowel-syllable
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206 (concat "\\("
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207 devanagari-pure-cons "?" devanagari-pure-cons "?"
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208 devanagari-pure-cons "?" devanagari-pure-cons "\\)?"
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209 devanagari-full-cons devanagari-matra "?[$(5!!!"(B]?")
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210 "Devanagari consonant vowel syllable.")
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211
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212 ;;
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213 ;; Also, digits and virams should be processed other than syllables.
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214 ;;
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215 ;; In IS 13194, Avagrah is obtained by Nukta after Viram, and
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216 ;; OM is obtained by Nukta after Chandrabindu
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217 ;;
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218
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219 (defconst devanagari-digit-viram-visarga
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220 "[$(5!q(B-$(5!z!j!#(B]")
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221
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222 (defconst devanagari-other-sign
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223 "\\([$(5!!!j(B]$(5!i(B\\)\\|\\([$(5#!#J(B]\\)")
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224
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225 (defconst devanagari-composite-glyph-unit
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226 (concat "\\(" devanagari-cons-syllable
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227 "\\)\\|\\(" devanagari-vowel-syllable
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228 "\\)\\|\\(" devanagari-cons-vowel-syllable
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229 "\\)\\|\\(" devanagari-other-sign
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230 "\\)\\|\\(" devanagari-digit-viram-visarga "\\)")
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2391
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231 "Regexp matching Devanagari string to be composed from one glyph.")
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232
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233 ;;(put-charset-property charset-devanagari-1-column
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234 ;; 'char-to-glyph 'devanagari-compose-string)
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235 ;;(put-charset-property charset-devanagari-2-column
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236 ;; 'char-to-glyph 'devanagari-compose-string)
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237
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238 ;; Sample
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239 ;;
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240 ;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![(B") => 0
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241 ;;(string-match devanagari-cons-vowel-syllable-examine "$(5!F!h!D!\(B") => 0
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242 ;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![!F!h!D!\(B") => 0
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243
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244 ;;
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245 ;; Steps toward the composition
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246 ;; Converting Character Codes to Composite Glyph.
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247 ;;
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248 ;; Example : $(5!X![(B/$(5!F!h!D!\(B
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249 ;;
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250 ;; First, convert Characters to appropriate glyphs.
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251 ;;
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252 ;; => $(5!X![(B/$(5"F!D!\(B
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253 ;;
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254 ;; Then, determine the base glyph, apply-orders and apply-rules.
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255 ;;
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256 ;; => $(5!X(B (ml.mr) $(5![(B / $(5!D(B (ml.mr) $(5"F(B (mr ml) $(5!\(B
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257 ;;
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258 ;; Finally, convert 2-column glyphs to 1-column glyph
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259 ;; if such a glyph exist.
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260 ;;
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261 ;; => $(6!X(B (ml.mr) $(6![(B / $(6!D(B (ml.mr) $(6"F(B (mr ml) $(6!\(B
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262 ;;
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263 ;; Compose the glyph.
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264 ;;
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265 ;; => 4$(6!Xt%![0!X![1(B/4$(6!Dt%"Fv#!\0!D"F!\1(B
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266 ;; => 4$(6!Xt%![0!X![14!Dt%"Fv#!\0!D"F!\1(B
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267 ;;
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268
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269 ;;
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270 ;; Phase 1: Converting Character Code to Glyph Code.
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271 ;;
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272 ;;
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273 ;; IMPORTANT:
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274 ;; There may be many rules that you many want to suppress.
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275 ;; In that case, please comment out that rule.
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276 ;;
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277 ;; RULES WILL BE EVALUATED FROM FIRST TO LAST.
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278 ;; PUT MORE SPECIFIC RULES FIRST.
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279 ;;
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280 ;; TO DO:
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281 ;; Prepare multiple specific list of rules for each languages
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282 ;; that adopt Devanagari script.
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283 ;;
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284
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285 (defconst devanagari-char-to-glyph-rules
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286 '(
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287
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288 ;; `r' at the top of syllable and followed by other consonants.
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289 ;; ("[^$(5!h(B]\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
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290 ("^\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
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291
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292 ;; Ligature Rules
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293 ("\\($(5!3!h!B!h!O!h!M(B\\)" "$(5$!(B" sanskrit)
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294 ("\\($(5!3!h!B!h!T(B\\)" "$(5$"(B" sanskrit)
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295 ("\\($(5!3!h!B!h!M(B\\)" "$(5$#(B" sanskrit)
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296 ("\\($(5!3!h!F!h!M(B\\)" "$(5$$(B")
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297 ("\\($(5!3!h!O!h!M(B\\)" "$(5$%(B")
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298 ("\\($(5!3!h!O(B\\)" "$(5"#(B") ; Post "r"
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299 ("\\($(5!3!h!T!h!M(B\\)" "$(5$&(B" sanskrit)
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300 ("\\($(5!3!h(B\\)$(5!3!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Special Half Form
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301 ("\\($(5!3!h!3(B\\)" "$(5$'(B")
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302 ("\\($(5!3!h(B\\)$(5!B!h!O(B" "$(5"3(B") ; Special Rules for "k-tr"
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303 ("\\($(5!3!h!B(B\\)" "$(5$((B")
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304 ("\\($(5!3!h!F(B\\)" "$(5$)(B")
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305 ("\\($(5!3!h!L(B\\)" "$(5$*(B")
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306 ("\\($(5!3!h!M(B\\)" "$(5$+(B")
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307 ("\\($(5!3!h!Q(B\\)" "$(5$,(B")
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308 ("\\($(5!3!h!T(B\\)" "$(5$-(B")
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309 ("\\($(5!3!h!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
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310 ("\\($(5$.!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
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311 ("\\($(5!3!h!V(B\\)" "$(5$.(B")
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312 ("\\($(5!3!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Half Form
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313 ("\\($(5!3!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"s(B") ; Nukta Half Form
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314 ("\\($(5!3!i(B\\)" "$(5#3(B") ; Nukta
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315 ("\\($(5!4!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"4(B") ; Half Form
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316 ("\\($(5!4!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"t(B") ; Nukta Half Form
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317 ("\\($(5!4!i(B\\)" "$(5#4(B") ; Nukta
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318 ("\\($(5!5!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"`(B") ; Half Form
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319 ("\\($(5!5!h!O(B\\)" "$(5"$(B") ; Post "r"
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320 ("\\($(5!5!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"5(B") ; Half Form
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321 ("\\($(5!5!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"u(B") ; Nukta Half Form
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322 ("\\($(5!5!i(B\\)" "$(5#5(B") ; Nukta
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323 ("\\($(5!6!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"a(B") ; Half Form
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324 ("\\($(5!6!h!F(B\\)" "$(5$/(B")
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325 ; Slot
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326 ("\\($(5!6!h!O(B\\)" "$(5!6"q(B") ; Post "r"
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327 ("\\($(5!6!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"6(B") ; Half Form
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328 ("\\($(5!7!h!3!h!B!h!M(B\\)" "$(5$0(B" sanskrit)
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329 ("\\($(5!7!h!3!h!V!h!T(B\\)" "$(5$1(B" sanskrit)
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330 ("\\($(5!7!h!3!h!B(B\\)" "$(5$2(B" sanskrit)
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331 ("\\($(5!7!h!3!h!V(B\\)" "$(5$3(B" sanskrit)
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332 ("\\($(5!7!h!3!h!O(B\\)" "$(5$9"q(B") ; Special Rule. May be precomposed font needed.
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333 ("\\($(5!7!h!6!h!O(B\\)" "$(5$4(B" sanskrit)
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334 ("\\($(5!7!h!3!h!M(B\\)" "$(5$5(B" sanskrit)
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335 ("\\($(5!7!h!4!h!M(B\\)" "$(5$6(B" sanskrit)
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336 ("\\($(5!7!h!5!h!M(B\\)" "$(5$7(B" sanskrit)
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337 ("\\($(5!7!h!6!h!M(B\\)" "$(5$8(B" sanskrit)
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338 ("\\($(5!7!h!3(B\\)" "$(5$9(B")
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339 ("\\($(5!7!h!4(B\\)" "$(5$:(B")
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340 ("\\($(5!7!h!5!h!O(B\\)" "$(5$;"q(B") ; Special Rule. May be precomposed font needed.
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341 ("\\($(5!7!h!5(B\\)" "$(5$;(B")
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342 ("\\($(5!7!h!6(B\\)" "$(5$<(B")
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343 ("\\($(5!7!h!7(B\\)" "$(5$=(B")
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344 ("\\($(5!7!h!F(B\\)" "$(5$>(B")
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345 ("\\($(5!7!h!L(B\\)" "$(5$?(B")
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346 ("\\($(5!7!h!M(B\\)" "$(5$@(B")
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347 ("\\($(5!8!h(B\\)[$(5!8!<(B]$(5!h(B" "$(5"8(B") ; Half Form
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348 ("\\($(5!8!h!8(B\\)" "$(5$A(B")
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349 ("\\($(5!8!h!<(B\\)" "$(5$B(B")
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350 ("\\($(5!8!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8"q(B") ; Half Form Post "r"
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351 ("\\($(5!8!h!O(B\\)" "$(5!8"q(B") ; Post "r"
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352 ("\\($(5!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8(B") ; Half Form
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353 ("\\($(5!9!h!M(B\\)" "$(5$C(B")
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354 ("\\($(5!:!h!O(B\\)" "$(5$D(B")
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355 ("\\($(5!:!h!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"m(B") ; Half Form
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356 ("\\($(5!:!h!<(B\\)" "$(5$E(B")
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357 ("\\($(5!:!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5":(B") ; Half Form
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358 ("\\($(5!:!i!h!O(B\\)" "$(5"!(B") ; Nukta Post "r"
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359 ("\\($(5!:!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"z(B") ; Nukta Half Form
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360 ("\\($(5!:!i(B\\)" "$(5#:(B") ; Nukta
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361 ("\\($(5!;!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5";(B") ; Half Form
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362 ("\\($(5!<!h(B\\)$(5!8!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
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363 ("\\($(5!<!h!8(B\\)" "$(5$F(B")
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364 ("\\($(5!<!h(B\\)$(5!:!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
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365 ("\\($(5!<!h!:(B\\)" "$(5$G(B")
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366 ("\\($(5!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Half Form
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367 ("\\($(5!=!h!3(B\\)" "$(5$H(B")
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368 ("\\($(5!=!h!=(B\\)" "$(5$I(B")
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369 ("\\($(5!=!h!>(B\\)" "$(5$J(B")
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370 ("\\($(5!=!h!M(B\\)" "$(5$K(B")
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371 ("\\($(5!>!h!M(B\\)" "$(5$L(B")
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372 ("\\($(5!?!h!5!h!M(B\\)" "$(5$M(B" sanskrit)
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373 ("\\($(5!?!h!6!h!O(B\\)" "$(5$N(B" sanskrit)
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374 ("\\($(5!?!h!O!h!M(B\\)" "$(5$O(B")
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375 ("\\($(5!?!h!5(B\\)" "$(5$P(B")
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376 ("\\($(5!?!h!6(B\\)" "$(5$Q(B")
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377 ("\\($(5!?!h!?(B\\)" "$(5$R(B")
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378 ("\\($(5!?!h!L(B\\)" "$(5$S(B")
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379 ("\\($(5!?!h!M(B\\)" "$(5$T(B")
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380 ("\\($(5!?!i(B\\)" "$(5#?(B") ; Nukta
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381 ("\\($(5!@!h!M(B\\)" "$(5$`(B")
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382 ("\\($(5!@!i(B\\)" "$(5#@(B") ; Nukta
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383 ("\\($(5!A!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"A(B") ; Half Form
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384 ("\\($(5!B!h(B\\)$(5!B!h!O(B" "$(5"B(B") ; Special Rule for "t-tr"
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385 ("\\($(5!B!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"c(B") ; Half Form
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386 ("\\($(5!B!h!B(B\\)" "$(5$a(B")
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387 ("\\($(5!B!h!F(B\\)" "$(5$b(B")
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388 ("\\($(5!B!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"d(B") ; Half Form Post "r"
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389 ("\\($(5!B!h!O(B\\)" "$(5"%(B") ; Post "r"
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390 ("\\($(5!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"B(B") ; Half Form
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391 ("\\($(5!C!h!O(B\\)" "$(5!C"q(B") ; Post "r"
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392 ("\\($(5!C!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"C(B") ; Half Form
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393 ("\\($(5!D!h!D!h!M(B\\)" "$(5$c(B")
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394 ("\\($(5!D!h!E!h!M(B\\)" "$(5$d(B")
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395 ("\\($(5!D!h!K!h!M(B\\)" "$(5$e(B")
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396 ("\\($(5!D!h!K!h!O(B\\)" "$(5$r"r(B") ; Special Case for "dbhr" ; ***
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397 ("\\($(5!D!h!O!h!M(B\\)" "$(5$f(B")
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398 ("\\($(5!D!h!T!h!M(B\\)" "$(5$g(B")
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399 ("\\($(5!D!h!5!h!O(B\\)" "$(5$h(B")
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400 ("\\($(5!D!h!6!h!O(B\\)" "$(5$i(B")
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401 ("\\($(5!D!h!D!h!T(B\\)" "$(5$j(B")
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402 ("\\($(5!D!h!E!h!T(B\\)" "$(5$k(B")
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403 ("\\($(5!D!h(B\\)$(5!E!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5!D!h(B") ; Special Half Form (for ddhra)
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404 ("\\($(5!D!h!5(B\\)" "$(5$l(B")
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405 ("\\($(5!D!h!6(B\\)" "$(5$m(B")
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406 ("\\($(5!D!h!D(B\\)" "$(5$n(B")
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407 ("\\($(5!D!h!E(B\\)" "$(5$o(B")
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408 ("\\($(5!D!h!F(B\\)" "$(5$p(B")
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409 ("\\($(5!D!h(B\\)$(5!J!h(B" "$(5!D!h(B") ; Suppressing "db-"
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410 ("\\($(5!D!h!J(B\\)" "$(5$q(B")
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411 ("\\($(5!D!h!K(B\\)" "$(5$r(B")
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412 ("\\($(5!D!h!L(B\\)" "$(5$s(B")
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413 ("\\($(5!D!h!M(B\\)" "$(5$t(B")
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414 ("\\($(5!D!h!T(B\\)" "$(5$u(B")
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415 ("\\($(5!E!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"e(B") ; Half Form
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416 ("\\($(5!E!h!F(B\\)" "$(5$v(B")
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417 ("\\($(5!E!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"f(B") ; Half Form Post "r"
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418 ("\\($(5!E!h!O(B\\)" "$(5!E"q(B") ; Post "r"
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419 ("\\($(5!E!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"E(B") ; Half Form
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420 ("\\($(5!F!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"k(B") ; Half Form
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421 ("\\($(5!F!h!F(B\\)" "$(5$w(B")
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422 ("\\($(5!F!h!O(B\\)" "$(5!F"q(B")
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423 ("\\($(5!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"F(B") ; Half Form
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424 ("\\($(5!G!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"G(B") ; Nukta Half Form
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425 ("\\($(5!H!h(B\\)$(5!B!h!O(B" "$(5"H(B") ; Special Rule for "p-tr"
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426 ("\\($(5!H!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"g(B") ; Half Form
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427 ("\\($(5!H!h!B(B\\)" "$(5$x(B")
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428 ("\\($(5!H!h!F(B\\)" "$(5$y(B")
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429 ("\\($(5!H!h!Q(B\\)" "$(5$z(B")
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430 ("\\($(5!H!h!O(B\\)" "$(5"&(B") ; Post "r"
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431 ("\\($(5!H!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"H(B") ; Half Form
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432 ("\\($(5!I!h!O(B\\)" "$(5"'(B") ; Post "r"
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433 ("\\($(5!I!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"I(B") ; Half Form
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434 ("\\($(5!I!i!h!O(B\\)" "$(5""(B") ; Nukta Post "r"
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435 ("\\($(5!I!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"y(B") ; Nukta Half Form
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436 ("\\($(5!I!i(B\\)" "$(5#I(B") ; Nukta
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437 ("\\($(5!J!h(B\\)$(5!F!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
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438 ("\\($(5!J!h!F(B\\)" "$(5${(B")
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439 ("\\($(5!J!h(B\\)$(5!J!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
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440 ("\\($(5!J!h!J(B\\)" "$(5$|(B")
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441 ("\\($(5!J!h(B\\)$(5!T!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
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442 ("\\($(5!J!h!T(B\\)" "$(5$}(B")
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443 ("\\($(5!J!h!O(B\\)" "$(5!J"q(B") ; Post "r"
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444 ("\\($(5!J!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Half Form
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445 ("\\($(5!K!h!F(B\\)" "$(5$~(B")
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446 ("\\($(5!K!h!O(B\\)" "$(5!K"q(B") ; Post "r"
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447 ("\\($(5!K!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"K(B") ; Half Form
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448 ("\\($(5!L!h!F(B\\)" "$(5#P(B")
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449 ("\\($(5!L!h!Q(B\\)" "$(5#Q(B")
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450 ("\\($(5!L!h!O(B\\)" "$(5!L"q(B") ; Post "r"
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451 ("\\($(5!L!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"L(B") ; Half Form
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452 ("\\($(5!M!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"M(B") ; Half Form
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453 ("\\($(5!N!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"N(B") ; Half Form
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454 ;; special form for "ru".
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455 ("\\($(5!O!](B\\)" "$(5",(B")
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456 ("\\($(5!O!^(B\\)" "$(5"-(B")
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457 ("\\($(5!P!](B\\)" "$(5".(B")
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458 ("\\($(5!P!^(B\\)" "$(5"/(B")
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459 ;;
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460 ("\\($(5!Q!h!Q(B\\)" "$(5#`(B" sanskrit)
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461 ("\\($(5!Q!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"Q(B") ; Half Form
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462 ("\\($(5!R!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"R(B") ; Half Form
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463 ("\\($(5!S!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"S(B") ; Half Form
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464 ("\\($(5!T!h!F(B\\)" "$(5#a(B")
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465 ("\\($(5!T!h!T(B\\)" "$(5#b(B")
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466 ("\\($(5!T!h!O(B\\)" "$(5!T"q(B") ; Post "r"
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467 ("\\($(5!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"T(B") ; Half Form
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468 ("\\($(5!U!h!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"h(B") ; Half Form
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469 ("\\($(5!U!h!8(B\\)" "$(5#c(B")
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470 ("\\($(5!U!h!F(B\\)" "$(5#d(B")
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471 ("\\($(5!U!h!J(B\\)" "$(5#e(B")
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472 ("\\($(5!U!h!Q(B\\)" "$(5#f(B")
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473 ("\\($(5!U!h(B\\)$(5!T!h!O(B" "$(5"U(B") ; Special Half Form
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474 ("\\($(5!U!h!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"j(B") ; Half Form
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475 ; ("\\($(5!U!h!T(B\\)" "$(5#g(B")
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476 ("\\($(5!U!h!O!h!T(B\\)" "$(5#g(B")
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477 ("\\($(5!U!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"i(B") ; Half Form
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478 ("\\($(5!U!h!O(B\\)" "$(5")(B") ; Post "r"
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479 ("\\($(5!U!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"U(B") ; Half Form
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480 ("\\($(5!V!h!=!h!O!h!M(B\\)" "$(5#h(B")
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481 ("\\($(5!V!h!=!h!M(B\\)" "$(5#i(B")
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482 ("\\($(5!V!h!=!h!T(B\\)" "$(5#j(B")
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483 ("\\($(5!V!h!=(B\\)" "$(5#k(B")
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484 ("\\($(5!V!h!>(B\\)" "$(5#l(B")
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485 ("\\($(5!V!h!O(B\\)" "$(5!V"q(B") ; Post "r"
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486 ("\\($(5!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"V(B") ; Half Form
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487 ("\\($(5!W!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W"F(B") ; Special Half Form
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488 ("\\($(5!W!h!F(B\\)" "$(5#m(B")
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489 ("\\($(5!W!h!O(B\\)" "$(5#n(B")
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490 ("\\($(5!W!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W(B") ; Half Form
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491 ("\\($(5!X!h!A(B\\)" "$(5#p(B")
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492 ("\\($(5!X!h!F(B\\)" "$(5#q(B")
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493 ("\\($(5!X!h!L(B\\)" "$(5#r(B")
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494 ("\\($(5!X!h!M(B\\)" "$(5#s(B")
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495 ("\\($(5!X!h!O(B\\)" "$(5#t(B")
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496 ("\\($(5!X!h!Q(B\\)" "$(5#u(B")
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497 ("\\($(5!X!h!T(B\\)" "$(5#v(B")
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498 ;; Special Ligature Rules
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499 ("\\($(5!X!_(B\\)" "$(5#R(B")
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500
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501 ;; For consonants other than listed above, glyph-composition will
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502 ;; be applied. If the consonant which is preceding "$(5!O(B" does not
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503 ;; have the vertical line (such as "$(5!?(B"), "$(5"r(B" is put beneath the
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504 ;; consonant.
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505 ;;
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506 ("[$(5!7!9!=!>!?!@!D!O!P!R!S!X(B]\\($(5!h!O(B\\)" "$(5"r(B")
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507 ("[$(5!6!8!C!E!F!H!J!K!L!M!T!V(B]\\($(5!h!O(B\\)" "$(5"q(B")
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508 ("$(5!?!i(B\\($(5!h!O(B\\)" "$(5"r(B")
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509 ("$(5!@!i(B\\($(5!h!O(B\\)" "$(5"r(B")
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510
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511 ;; Nukta with Non-Consonants
|
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512 ("\\($(5!!!i(B\\)" "$(5#!(B")
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513 ("\\($(5!&!i(B\\)" "$(5#&(B")
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514 ("\\($(5!'!i(B\\)" "$(5#'(B")
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515 ("\\($(5!*!i(B\\)" "$(5#*(B")
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516 ("\\($(5![!i(B\\)" "$(5#L(B")
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517 ("\\($(5!\!i(B\\)" "$(5#M(B")
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518 ("\\($(5!_!i(B\\)" "$(5#K(B")
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519 ("\\($(5!j!i(B\\)" "$(5#J(B")
|
|
|
520
|
|
|
521 ;; Special rule for "r + some vowels"
|
|
|
522 ("\\($(5!O!_!i(B\\)" "$(5#*"p(B")
|
|
|
523 ("\\($(5!O![!i(B\\)" "$(5#&"p(B")
|
|
|
524 ("\\($(5!O!\!i(B\\)" "$(5#'"p(B")
|
|
|
525 ("\\($(5!O!_(B\\)" "$(5!*"p(B")
|
|
|
526 ;; If everything fails, "y" will connect to the front consonant.
|
|
|
527 ("\\($(5!h!M(B\\)" "$(5"](B")
|
|
|
528 )
|
|
|
529 "Alist of regexps of Devanagari character sequences vs composed characters.")
|
|
|
530
|
|
|
531 (let ((rules devanagari-char-to-glyph-rules))
|
|
|
532 (while rules
|
|
|
533 (let ((rule (car rules))
|
|
|
534 (chars) (char) (glyphs) (glyph))
|
|
|
535 (setq rules (cdr rules))
|
|
|
536 (string-match "\\\\(\\(.+\\)\\\\)" (car rule))
|
|
|
537 (setq chars (substring (car rule) (match-beginning 1) (match-end 1)))
|
|
|
538 (setq char (string-to-char chars))
|
|
|
539 (setq glyphs (cdr rule))
|
|
|
540 (setq glyph (string-to-char (car glyphs)))
|
|
|
541 (put-char-code-property
|
|
|
542 char 'char-to-glyph
|
|
|
543 ;; We don't "cons" it since priority is top to down.
|
|
|
544 (append (get-char-code-property char 'char-to-glyph) (list rule)))
|
|
|
545
|
|
|
546 (if (and (< ?(5z(B glyph) ; Glyphs only.
|
|
|
547 (null (get-char-code-property glyph 'glyph-to-char)))
|
|
|
548 ; One glyph may corresponds to multiple characters,
|
|
|
549 ; e.g., surrounding vowel in Tamil, etc.
|
|
|
550 ; but for Devanagari, we put this restriction
|
|
|
551 ; to make sure the fact that one glyph corresponds to one char.
|
|
|
552 (put-char-code-property
|
|
|
553 glyph 'glyph-to-char
|
|
|
554 (cons (list (car glyphs) chars)
|
|
|
555 (get-char-code-property glyph 'glyph-to-char)
|
|
|
556 ))))))
|
|
|
557
|
|
|
558 ;;
|
|
|
559 ;; Function used in both characters-to-glyphs conversion and
|
|
|
560 ;; glyphs-to-characters conversion.
|
|
|
561 ;;
|
|
|
562
|
|
|
563 (defun max-match-len (regexp)
|
|
|
564 "Return the maximum length of text that can match the pattern REGEXP.
|
|
|
565 Only [...] pattern of regexp is recognized."
|
|
|
566 (let ((len 0)
|
|
|
567 (index 0))
|
|
|
568 (while (string-match "\\[\\([^\]]\\)+\\]" regexp index)
|
|
|
569 (setq len (+ len (- (match-beginning 0) index) 1)
|
|
|
570 index (match-end 0)))
|
|
|
571 len))
|
|
|
572
|
|
|
573 ;; Return t iff at least one member appears in both LIST1 and LIST2.
|
|
|
574 (defun intersecting-p (list1 list2)
|
|
|
575 (let ((found nil))
|
|
|
576 (while (and list1 (not found))
|
|
|
577 (if (memq (car list1) list2)
|
|
|
578 (setq found t)
|
|
|
579 (setq list1 (cdr list1))))
|
|
|
580 found))
|
|
|
581
|
|
|
582 (defun string-conversion-by-rule (source symbol &rest specs)
|
|
|
583 "Convert string SOURCE by rules stored in SYMBOL property of each character.
|
|
|
584 The remaining arguments forms a list SPECS that restricts applicable rules.
|
|
|
585
|
|
|
586 The rules has the form ((REGEXP STR RULE-SPEC ...) ...).
|
|
|
587 Each character sequence in STRING that matches REGEXP is
|
|
|
588 replaced by STR.
|
|
|
589
|
|
|
590 If SPECS is nil, only rules with no RULE-SPECs is applied. Otherwise
|
|
|
591 rules with no RULE-SPECS and rules that have at least one member of
|
|
|
592 SPECS in RULE-SPECs is applied.
|
|
|
593
|
|
|
594 Rules are tested in the order of the list, thus more specific rules
|
|
|
595 should be placed in front of less specific rules.
|
|
|
596
|
|
|
597 If rule is given in the forms of regexp '...\\(...\\)...', a character
|
|
|
598 sequence that matches the pattern inside of the parenthesis is the
|
|
|
599 subject of the match. Otherwise, the entire expression is the subject
|
|
|
600 of the match."
|
|
|
601 (let ((pos 0)
|
|
|
602 (dst-str ""))
|
|
|
603 (while (< pos (length source))
|
|
|
604 (let ((found nil)
|
|
|
605 (rules (get-char-code-property
|
|
|
606 (string-to-char
|
|
|
607 (substring source pos)) symbol)))
|
|
|
608 (while rules
|
|
|
609 (let* ((rule (car rules))
|
|
|
610 (regexp (car rule))
|
|
|
611 (replace-str (car (cdr rule)))
|
|
|
612 (rule-specs (cdr (cdr rule)))
|
|
|
613 search-pos)
|
|
|
614 (if (not (or (null rule-specs)
|
|
|
615 (intersecting-p specs rule-specs)))
|
|
|
616 (setq rules (cdr rules))
|
|
|
617 (if (null (string-match "\\\\(.+\\\\)" regexp))
|
|
|
618 (progn
|
|
|
619 (setq regexp (concat "\\(" regexp "\\)"))
|
|
|
620 (setq search-pos pos))
|
|
|
621 (setq search-pos (- pos (max-match-len
|
|
|
622 (substring regexp
|
|
|
623 (string-match "^[^\\\\]*" regexp)
|
|
|
624 (match-end 0))))))
|
|
|
625 (if (< search-pos 0) (setq search-pos 0))
|
|
|
626 (if (string-match regexp source search-pos)
|
|
|
627 (if (= (match-beginning 1) pos)
|
|
|
628 (progn
|
|
|
629 (setq dst-str (concat dst-str replace-str))
|
|
|
630 (setq rules nil) ; Get out of the loop.
|
|
|
631 (setq found t)
|
|
|
632 ;; proceed `pos' for replaced characters.
|
|
|
633 (setq pos (match-end 1)))
|
|
|
634 (setq rules (cdr rules)))
|
|
|
635 (setq rules (cdr rules))))))
|
|
|
636 ;; proceed to next position
|
|
|
637 (if (not found)
|
|
|
638 (setq dst-str (concat dst-str (substring source pos (1+ pos)))
|
|
|
639 pos (1+ pos)))))
|
|
|
640 dst-str))
|
|
|
641
|
|
|
642
|
|
|
643 ;;
|
|
|
644 ;; Convert Character Code to Glyph Code
|
|
|
645 ;;
|
|
|
646
|
|
|
647 ;;;###autoload
|
|
|
648 (defun char-to-glyph-devanagari (string &rest langs)
|
|
|
649 "Convert Devanagari characters in STRING to Devanagari glyphs.
|
|
|
650 Ligatures and special rules are processed."
|
|
|
651 (apply
|
|
|
652 'string-conversion-by-rule
|
|
|
653 (append (list string 'char-to-glyph) langs)))
|
|
|
654
|
|
|
655 ;; Example:
|
|
|
656 ;;(char-to-glyph-devanagari "$(5!X)
|
|
|
731 (?$(5!^(B 0 (br . tr))
|
|
|
732 (?$(5!_(B 0 (br . tr))
|
|
|
733 (?$(5!`(B 0 (mr . mr)) ; (tc . bc)
|
|
|
734 (?$(5!a(B 0 (mr . mr))
|
|
|
735 (?$(5!b(B 0 (mr . mr))
|
|
|
736 (?$(5!c(B 0 (mr . mr))
|
|
|
737 (?$(5!d(B 0)
|
|
|
738 (?$(5!e(B 0)
|
|
|
739 (?$(5!f(B 0)
|
|
|
740 (?$(5!g(B 0)
|
|
|
741 (?$(5!h(B 0 (br . tr))
|
|
|
742 (?$(5!i(B 0 (br . tr))
|
|
|
743 (?$(5!j(B 0)
|
|
|
744 (nil 0)
|
|
|
745 (nil 0)
|
|
|
746 (nil 0)
|
|
|
747 (nil 0)
|
|
|
748 (nil 0)
|
|
|
749 (nil 0)
|
|
|
750 (?$(5!q(B 0)
|
|
|
751 (?$(5!r(B 0)
|
|
|
752 (?$(5!s(B 0)
|
|
|
753 (?$(5!t(B 0)
|
|
|
754 (?$(5!u(B 0)
|
|
|
755 (?$(5!v(B 0)
|
|
|
756 (?$(5!w(B 0)
|
|
|
757 (?$(5!x(B 0)
|
|
|
758 (?$(5!y(B 0)
|
|
|
759 (?$(5!z(B 0)
|
|
|
760 (nil 0)
|
|
|
761 (nil 0)
|
|
|
762 (nil 0)
|
|
|
763 (nil 0)
|
|
|
764 (?$(5"!(B 0)
|
|
|
765 (?$(5""(B 0)
|
|
|
766 (?$(5"#(B 0)
|
|
|
767 (?$(5"$(B 0)
|
|
|
768 (?$(5"%(B 0)
|
|
|
769 (?$(5"&(B 0)
|
|
|
770 (?$(5"'(B 0)
|
|
|
771 (?$(5"((B 0)
|
|
|
772 (?$(5")(B 0)
|
|
|
773 (?$(5"*(B 0)
|
|
|
774 (?$(5"+(B 0)
|
|
|
775 (?$(5",(B 0)
|
|
|
776 (?$(5"-(B 0)
|
|
|
777 (?$(5".(B 0)
|
|
|
778 (?$(5"/(B 0)
|
|
|
779 (?$(5"0(B 0)
|
|
|
780 (?$(5"1(B 0)
|
|
|
781 (?$(5"2(B 0)
|
|
|
782 (?$(5"3(B 0)
|
|
|
783 (?$(5"4(B 0)
|
|
|
784 (?$(5"5(B 0)
|
|
|
785 (?$(5"6(B 0)
|
|
|
786 (?$(5"7(B 0)
|
|
|
787 (?$(5"8(B 0)
|
|
|
788 (?$(5"9(B 0)
|
|
|
789 (?$(5":(B 0)
|
|
|
790 (?$(5";(B 0)
|
|
|
791 (?$(5"<(B 0)
|
|
|
792 (?$(5"=(B 0)
|
|
|
793 (?$(5">(B 0)
|
|
|
794 (?$(5"?(B 0)
|
|
|
795 (?$(5"@(B 0)
|
|
|
796 (?$(5"A(B 0)
|
|
|
797 (?$(5"B(B 0)
|
|
|
798 (?$(5"C(B 0)
|
|
|
799 (?$(5"D(B 0)
|
|
|
800 (?$(5"E(B 0)
|
|
|
801 (?$(5"F(B 0)
|
|
|
802 (?$(5"G(B 0)
|
|
|
803 (?$(5"H(B 0)
|
|
|
804 (?$(5"I(B 0)
|
|
|
805 (?$(5"J(B 0)
|
|
|
806 (?$(5"K(B 0)
|
|
|
807 (?$(5"L(B 0)
|
|
|
808 (?$(5"M(B 0)
|
|
|
809 (?$(5"N(B 0)
|
|
|
810 (?$(5"O(B 0)
|
|
|
811 (?$(5"P(B 0)
|
|
|
812 (?$(5"Q(B 0)
|
|
|
813 (?$(5"R(B 0)
|
|
|
814 (?$(5"S(B 0)
|
|
|
815 (?$(5"T(B 0)
|
|
|
816 (?$(5"U(B 0)
|
|
|
817 (?$(5"V(B 0)
|
|
|
818 (?$(5"W(B 0)
|
|
|
819 (?$(5"X(B 0)
|
|
|
820 (?$(5"Y(B 0)
|
|
|
821 (?$(5"Z(B 0)
|
|
|
822 (?$(5"[(B 0)
|
|
|
823 (?$(5"\(B 0)
|
|
|
824 (?$(5"](B 0)
|
|
|
825 (?$(5"^(B 0)
|
|
|
826 (?$(5"_(B 0)
|
|
|
827 (?$(5"`(B 0)
|
|
|
828 (?$(5"a(B 0)
|
|
|
829 (?$(5"b(B 0)
|
|
|
830 (?$(5"c(B 0)
|
|
|
831 (?$(5"d(B 0)
|
|
|
832 (?$(5"e(B 0)
|
|
|
833 (?$(5"f(B 0)
|
|
|
834 (?$(5"g(B 0)
|
|
|
835 (?$(5"h(B 0)
|
|
|
836 (?$(5"i(B 0)
|
|
|
837 (?$(5"j(B 0)
|
|
|
838 (?$(5"k(B 0)
|
|
|
839 (?$(5"l(B 0)
|
|
|
840 (?$(5"m(B 0)
|
|
|
841 (?$(5"n(B 0)
|
|
|
842 (?$(5"o(B 0)
|
|
|
843 (?$(5"p(B 10 (mr . mr))
|
|
|
844 (?$(5"q(B 0 (br . br))
|
|
|
845 (?$(5"r(B 0 (br . tr))
|
|
|
846 (?$(5"s(B 0)
|
|
|
847 (?$(5"t(B 0)
|
|
|
848 (?$(5"u(B 0)
|
|
|
849 (?$(5"v(B 0)
|
|
|
850 (?$(5"w(B 0)
|
|
|
851 (?$(5"x(B 0)
|
|
|
852 (?$(5"y(B 0)
|
|
|
853 (?$(5"z(B 0)
|
|
|
854 (?$(5"{(B 0)
|
|
|
855 (?$(5"|(B 0)
|
|
|
856 (?$(5"}(B 0)
|
|
|
857 (?$(5"~(B 0)
|
|
|
858 (?$(5#!(B 0)
|
|
|
859 (?$(5#"(B 0)
|
|
|
860 (?$(5##(B 0)
|
|
|
861 (?$(5#$(B 0)
|
|
|
862 (?$(5#%(B 0)
|
|
|
863 (?$(5#&(B 0)
|
|
|
864 (?$(5#'(B 0)
|
|
|
865 (?$(5#((B 0)
|
|
|
866 (?$(5#)(B 0)
|
|
|
867 (?$(5#*(B 0)
|
|
|
868 (?$(5#+(B 0)
|
|
|
869 (?$(5#,(B 0)
|
|
|
870 (?$(5#-(B 0)
|
|
|
871 (?$(5#.(B 0)
|
|
|
872 (?$(5#/(B 0)
|
|
|
873 (?$(5#0(B 0)
|
|
|
874 (?$(5#1(B 0)
|
|
|
875 (?$(5#2(B 0)
|
|
|
876 (?$(5#3(B 0)
|
|
|
877 (?$(5#4(B 0)
|
|
|
878 (?$(5#5(B 0)
|
|
|
879 (?$(5#6(B 0)
|
|
|
880 (?$(5#7(B 0)
|
|
|
881 (?$(5#8(B 0)
|
|
|
882 (?$(5#9(B 0)
|
|
|
883 (?$(5#:(B 0)
|
|
|
884 (?$(5#;(B 0)
|
|
|
885 (?$(5#<(B 0)
|
|
|
886 (?$(5#=(B 0)
|
|
|
887 (?$(5#>(B 0)
|
|
|
888 (?$(5#?(B 0)
|
|
|
889 (?$(5#@(B 0)
|
|
|
890 (?$(5#A(B 0)
|
|
|
891 (?$(5#B(B 0)
|
|
|
892 (?$(5#C(B 0)
|
|
|
893 (?$(5#D(B 0)
|
|
|
894 (?$(5#E(B 0)
|
|
|
895 (?$(5#F(B 0)
|
|
|
896 (?$(5#G(B 0)
|
|
|
897 (?$(5#H(B 0)
|
|
|
898 (?$(5#I(B 0)
|
|
|
899 (?$(5#J(B 0)
|
|
|
900 (?$(5#K(B 0 (br . tr))
|
|
|
901 (?$(5#L(B 0 (br . tr))
|
|
|
902 (?$(5#M(B 0 (br . tr))
|
|
|
903 (?$(5#N(B 0)
|
|
|
904 (?$(5#O(B 0)
|
|
|
905 (?$(5#P(B 0)
|
|
|
906 (?$(5#Q(B 0)
|
|
|
907 (?$(5#R(B 0)
|
|
|
908 (?$(5#S(B 0)
|
|
|
909 (?$(5#T(B 0)
|
|
|
910 (?$(5#U(B 0)
|
|
|
911 (?$(5#V(B 0)
|
|
|
912 (?$(5#W(B 0)
|
|
|
913 (?$(5#X(B 0)
|
|
|
914 (?$(5#Y(B 0)
|
|
|
915 (?$(5#Z(B 0)
|
|
|
916 (?$(5#[(B 0)
|
|
|
917 (?$(5#\(B 0)
|
|
|
918 (?$(5#](B 0)
|
|
|
919 (?$(5#^(B 0)
|
|
|
920 (?$(5#_(B 0)
|
|
|
921 (?$(5#`(B 0)
|
|
|
922 (?$(5#a(B 0)
|
|
|
923 (?$(5#b(B 0)
|
|
|
924 (?$(5#c(B 0)
|
|
|
925 (?$(5#d(B 0)
|
|
|
926 (?$(5#e(B 0)
|
|
|
927 (?$(5#f(B 0)
|
|
|
928 (?$(5#g(B 0)
|
|
|
929 (?$(5#h(B 0)
|
|
|
930 (?$(5#i(B 0)
|
|
|
931 (?$(5#j(B 0)
|
|
|
932 (?$(5#k(B 0)
|
|
|
933 (?$(5#l(B 0)
|
|
|
934 (?$(5#m(B 0)
|
|
|
935 (?$(5#n(B 0)
|
|
|
936 (?$(5#o(B 0)
|
|
|
937 (?$(5#p(B 0)
|
|
|
938 (?$(5#q(B 0)
|
|
|
939 (?$(5#r(B 0)
|
|
|
940 (?$(5#s(B 0)
|
|
|
941 (?$(5#t(B 0)
|
|
|
942 (?$(5#u(B 0)
|
|
|
943 (?$(5#v(B 0)
|
|
|
944 (?$(5#w(B 0)
|
|
|
945 (?$(5#x(B 0)
|
|
|
946 (?$(5#y(B 0)
|
|
|
947 (?$(5#z(B 0)
|
|
|
948 (?$(5#{(B 0)
|
|
|
949 (?$(5#|(B 0)
|
|
|
950 (?$(5#}(B 0)
|
|
|
951 (?$(5#~(B 0)
|
|
|
952 (?$(5$!(B 0)
|
|
|
953 (?$(5$"(B 0)
|
|
|
954 (?$(5$#(B 0)
|
|
|
955 (?$(5$$(B 0)
|
|
|
956 (?$(5$%(B 0)
|
|
|
957 (?$(5$&(B 0)
|
|
|
958 (?$(5$'(B 0)
|
|
|
959 (?$(5$((B 0)
|
|
|
960 (?$(5$)(B 0)
|
|
|
961 (?$(5$*(B 0)
|
|
|
962 (?$(5$+(B 0)
|
|
|
963 (?$(5$,(B 0)
|
|
|
964 (?$(5$-(B 0)
|
|
|
965 (?$(5$.(B 0)
|
|
|
966 (?$(5$/(B 0)
|
|
|
967 (?$(5$0(B 0)
|
|
|
968 (?$(5$1(B 0)
|
|
|
969 (?$(5$2(B 0)
|
|
|
970 (?$(5$3(B 0)
|
|
|
971 (?$(5$4(B 0)
|
|
|
972 (?$(5$5(B 0)
|
|
|
973 (?$(5$6(B 0)
|
|
|
974 (?$(5$7(B 0)
|
|
|
975 (?$(5$8(B 0)
|
|
|
976 (?$(5$9(B 0)
|
|
|
977 (?$(5$:(B 0)
|
|
|
978 (?$(5$;(B 0)
|
|
|
979 (?$(5$<(B 0)
|
|
|
980 (?$(5$=(B 0)
|
|
|
981 (?$(5$>(B 0)
|
|
|
982 (?$(5$?(B 0)
|
|
|
983 (?$(5$@(B 0)
|
|
|
984 (?$(5$A(B 0)
|
|
|
985 (?$(5$B(B 0)
|
|
|
986 (?$(5$C(B 0)
|
|
|
987 (?$(5$D(B 0)
|
|
|
988 (?$(5$E(B 0)
|
|
|
989 (?$(5$F(B 0)
|
|
|
990 (?$(5$G(B 0)
|
|
|
991 (?$(5$H(B 0)
|
|
|
992 (?$(5$I(B 0)
|
|
|
993 (?$(5$J(B 0)
|
|
|
994 (?$(5$K(B 0)
|
|
|
995 (?$(5$L(B 0)
|
|
|
996 (?$(5$M(B 0)
|
|
|
997 (?$(5$N(B 0)
|
|
|
998 (?$(5$O(B 0)
|
|
|
999 (?$(5$P(B 0)
|
|
|
1000 (?$(5$Q(B 0)
|
|
|
1001 (?$(5$R(B 0)
|
|
|
1002 (?$(5$S(B 0)
|
|
|
1003 (?$(5$T(B 0)
|
|
|
1004 (?$(5$U(B 0)
|
|
|
1005 (?$(5$V(B 0)
|
|
|
1006 (?$(5$W(B 0)
|
|
|
1007 (?$(5$X(B 0)
|
|
|
1008 (?$(5$Y(B 0)
|
|
|
1009 (?$(5$Z(B 0)
|
|
|
1010 (?$(5$[(B 0)
|
|
|
1011 (?$(5$\(B 0)
|
|
|
1012 (?$(5$](B 0)
|
|
|
1013 (?$(5$^(B 0)
|
|
|
1014 (?$(5$_(B 0)
|
|
|
1015 (?$(5$`(B 0)
|
|
|
1016 (?$(5$a(B 0)
|
|
|
1017 (?$(5$b(B 0)
|
|
|
1018 (?$(5$c(B 0)
|
|
|
1019 (?$(5$d(B 0)
|
|
|
1020 (?$(5$e(B 0)
|
|
|
1021 (?$(5$f(B 0)
|
|
|
1022 (?$(5$g(B 0)
|
|
|
1023 (?$(5$h(B 0)
|
|
|
1024 (?$(5$i(B 0)
|
|
|
1025 (?$(5$j(B 0)
|
|
|
1026 (?$(5$k(B 0)
|
|
|
1027 (?$(5$l(B 0)
|
|
|
1028 (?$(5$m(B 0)
|
|
|
1029 (?$(5$n(B 0)
|
|
|
1030 (?$(5$o(B 0)
|
|
|
1031 (?$(5$p(B 0)
|
|
|
1032 (?$(5$q(B 0)
|
|
|
1033 (?$(5$r(B 0)
|
|
|
1034 (?$(5$s(B 0)
|
|
|
1035 (?$(5$t(B 0)
|
|
|
1036 (?$(5$u(B 0)
|
|
|
1037 (?$(5$v(B 0)
|
|
|
1038 (?$(5$w(B 0)
|
|
|
1039 (?$(5$x(B 0)
|
|
|
1040 (?$(5$y(B 0)
|
|
|
1041 (?$(5$z(B 0)
|
|
|
1042 (?$(5${(B 0)
|
|
|
1043 (?$(5$|(B 0)
|
|
|
1044 (?$(5$}(B 0)
|
|
|
1045 (?$(5$~(B 0)
|
|
|
1046 ))
|
|
|
1047
|
|
|
1048 ;; Determine composition priority and rule of the array of Glyphs.
|
|
|
1049 ;; Sort the glyphs with their priority.
|
|
|
1050
|
|
|
1051 (defun devanagari-reorder-glyphs-for-composition (string start end)
|
|
|
1052 (let ((pos start)
|
|
|
1053 (ordered-glyphs nil))
|
|
|
1054 (while (< pos end)
|
|
|
1055 (let ((glyph (aref string pos)))
|
|
|
1056 (setq pos (1+ pos))
|
|
|
1057 (setq ordered-glyphs
|
|
|
1058 (append ordered-glyphs
|
|
|
1059 (list (assq glyph devanagari-composition-rules))))))
|
|
4021
|
1060 (sort ordered-glyphs #'(lambda (x y) (< (car (cdr x)) (car (cdr y)))))))
|
|
771
|
1061
|
|
|
1062 ;;(devanagari-compose-to-one-glyph "$(5"5!X![(B") => "4$(6!Xv#"5t%![0!X"5![1(B"
|
|
|
1063
|
|
|
1064 (defun devanagari-compose-to-one-glyph (devanagari-string)
|
|
|
1065 (let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition
|
|
|
1066 devanagari-string 0 (length devanagari-string)))
|
|
|
1067 ;; List of glyphs to be composed.
|
|
|
1068 (cmp-glyph-list (list (car (car o-glyph-list))))
|
|
|
1069 (o-glyph-list (cdr o-glyph-list)))
|
|
|
1070 (while o-glyph-list
|
|
|
1071 (let* ((o-glyph (car o-glyph-list))
|
|
|
1072 (glyph (if (< 2 (length o-glyph))
|
|
|
1073 ;; default composition
|
|
|
1074 (list (car (cdr (cdr o-glyph))) (car o-glyph))
|
|
|
1075 ;; composition with a specified rule
|
|
|
1076 (list '(mr . ml) (car o-glyph)))))
|
|
|
1077 (setq o-glyph-list (cdr o-glyph-list))
|
|
|
1078 (setq cmp-glyph-list (append cmp-glyph-list glyph))))
|
|
|
1079 ;; Before applying compose-chars, convert glyphs to
|
|
|
1080 ;; 1-column width if possible.
|
|
|
1081 (setq cmp-glyph-list (devanagari-wide-to-narrow cmp-glyph-list))
|
|
|
1082 (if (= (length cmp-glyph-list) 1) (char-to-string (car cmp-glyph-list))
|
|
|
1083 (apply 'compose-chars cmp-glyph-list))))
|
|
|
1084
|
|
|
1085 (defun devanagari-composition-component (string &optional start end)
|
|
|
1086 (or start (setq start 0))
|
|
|
1087 (or end (setq end (length string)))
|
|
|
1088 (let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition
|
|
|
1089 string start end))
|
|
|
1090 ;; List of glyphs to be composed.
|
|
|
1091 (cmp-glyph-list (list (car (car o-glyph-list)))))
|
|
|
1092 (setq o-glyph-list (cdr o-glyph-list))
|
|
|
1093 (while o-glyph-list
|
|
|
1094 (let* ((o-glyph (car o-glyph-list))
|
|
|
1095 (glyph (if (< 2 (length o-glyph))
|
|
|
1096 ;; default composition
|
|
|
1097 (list (car (cdr (cdr o-glyph))) (car o-glyph))
|
|
|
1098 ;; composition with a specified rule
|
|
|
1099 (list '(mr . ml) (car o-glyph)))))
|
|
|
1100 (setq o-glyph-list (cdr o-glyph-list))
|
|
|
1101 (setq cmp-glyph-list (append cmp-glyph-list glyph))))
|
|
|
1102 ;; Convert glyphs to 1-column width if possible.
|
|
|
1103 (devanagari-wide-to-narrow cmp-glyph-list)))
|
|
|
1104
|
|
|
1105 ;; Utility function for Phase 2.5
|
|
|
1106
|
|
|
1107 ;; Check whether GLYPH is a Devanagari vertical modifier or not.
|
|
|
1108 ;; If it is a vertical modifier, whether it should be 1-column shape or not
|
|
|
1109 ;; depends on previous non-vertical modifier.
|
|
|
1110 (defun devanagari-vertical-modifier-p (glyph)
|
|
|
1111 (string-match (char-to-string glyph)
|
|
|
1112 "[$(5!"!]!^!_!`!a!b!c!h!i"p"q"r#K#L#M(B]"))
|
|
|
1113
|
|
|
1114 (defun devanagari-non-vertical-modifier-p (glyph)
|
|
|
1115 (string-match (char-to-string glyph)
|
|
|
1116 ; "[$(5!Z![!\!d!e!f!g(B]"))
|
|
|
1117 "[$(5![(B]"))
|
|
|
1118
|
|
|
1119 (defun devanagari-wide-to-narrow-char (char)
|
|
|
1120 "Convert Devanagari character CHAR to the corresponding narrow character.
|
|
|
1121 If there's no corresponding narrow character, return CHAR as is."
|
|
|
1122 (let ((narrow (cdr (assq char devanagari-1-column-char))))
|
|
|
1123 (or narrow char)))
|
|
|
1124
|
|
|
1125 ;;
|
|
|
1126 ;; Phase 2.5 Convert appropriate character to 1-column shape.
|
|
|
1127 ;;
|
|
|
1128 ;; This is temporary and should be removed out when Emacs supports
|
|
|
1129 ;; variable width characters.
|
|
|
1130 ;;
|
|
|
1131 ;; This will convert the composing glyphs (2 column glyphs)
|
|
|
1132 ;; to narrow (1 column) glyphs if they exist.
|
|
|
1133 ;;
|
|
|
1134 ;; devanagari-wide-to-narrow-old converts glyphs simply.
|
|
|
1135 ;; devanagari-wide-to-narrow takes care of upper/lower apply-glyphs
|
|
|
1136 ;; with 2 column base-glyph.
|
|
|
1137 ;;
|
|
|
1138 ;; Execution Examples
|
|
|
1139 ;;(devanagari-wide-to-narrow '(?$(5!3(B (ml . ml) ?$(5!a(B))
|
|
|
1140 ;;(devanagari-wide-to-narrow '(?$(5!F(B (ml . ml) ?$(5!a(B))
|
|
|
1141
|
|
|
1142 (defun devanagari-wide-to-narrow (src-list)
|
|
|
1143 (devanagari-wide-to-narrow-iter src-list t))
|
|
|
1144
|
|
|
1145 (defun devanagari-wide-to-narrow-iter (src-list 2-col-glyph)
|
|
|
1146 (let ((glyph (car src-list)))
|
|
|
1147 (cond ((null src-list) '())
|
|
|
1148 ; not glyph code
|
|
|
1149 ((not (numberp glyph))
|
|
|
1150 (cons glyph
|
|
|
1151 (devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
|
|
|
1152 ; glyphs to be processed regardless of the value of "2-col-glyph"
|
|
|
1153 ((devanagari-non-vertical-modifier-p glyph)
|
|
|
1154 (cons (devanagari-wide-to-narrow-char glyph)
|
|
|
1155 (devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
|
|
|
1156 ; glyphs which are depends on the value of "2-col-glyph"
|
|
|
1157 ((devanagari-vertical-modifier-p glyph)
|
|
|
1158 (if 2-col-glyph
|
|
|
1159 (cons glyph
|
|
|
1160 (devanagari-wide-to-narrow-iter (cdr src-list) t))
|
|
|
1161 (cons (devanagari-wide-to-narrow-char glyph)
|
|
|
1162 (devanagari-wide-to-narrow-iter (cdr src-list)
|
|
|
1163 2-col-glyph))))
|
|
|
1164 ; normal glyph
|
|
|
1165 (t
|
|
|
1166 (if (cdr (assq glyph devanagari-1-column-char))
|
|
|
1167 (cons (devanagari-wide-to-narrow-char glyph)
|
|
|
1168 (devanagari-wide-to-narrow-iter (cdr src-list) nil))
|
|
|
1169 (cons glyph
|
|
|
1170 (devanagari-wide-to-narrow-iter (cdr src-list) t)))))))
|
|
|
1171
|
|
|
1172
|
|
|
1173 ;;
|
|
|
1174 ;; Summary
|
|
|
1175 ;;
|
|
|
1176
|
|
|
1177 ;;
|
|
|
1178 ;; Decomposition of composite sequence.
|
|
|
1179 ;;
|
|
|
1180
|
|
|
1181 ;;;###autoload
|
|
|
1182 (defun devanagari-decompose-string (str)
|
|
|
1183 "Decompose Devanagari string STR"
|
|
|
1184 (decompose-string (copy-sequence str)))
|
|
|
1185
|
|
|
1186 ;;;###autoload
|
|
|
1187 (defun devanagari-decompose-region (from to)
|
|
|
1188 (interactive "r")
|
|
|
1189 (decompose-region from to))
|
|
|
1190
|
|
|
1191 ;;;
|
|
|
1192 ;;; Composition
|
|
|
1193 ;;;
|
|
|
1194
|
|
|
1195 ;;;###autoload
|
|
|
1196 (defun devanagari-compose-string (str &rest langs)
|
|
|
1197 (setq str (copy-sequence str))
|
|
|
1198 (let ((idx 0)
|
|
788
|
1199 ;rest match-b match-e
|
|
|
1200 )
|
|
771
|
1201 (while (string-match devanagari-composite-glyph-unit str idx)
|
|
|
1202 (let* ((match-b (match-beginning 0))
|
|
|
1203 (match-e (match-end 0))
|
|
|
1204 (cmps (devanagari-composition-component
|
|
|
1205 (apply
|
|
|
1206 'char-to-glyph-devanagari
|
|
|
1207 (cons (substring str match-b match-e) langs)))))
|
|
|
1208 (compose-string str match-b match-e cmps)
|
|
|
1209 (setq idx match-e))))
|
|
|
1210 str)
|
|
|
1211
|
|
|
1212 ;;;###autoload
|
|
|
1213 (defun devanagari-compose-region (from to &rest langs)
|
|
|
1214 (interactive "r")
|
|
|
1215 (save-excursion
|
|
|
1216 (save-restriction
|
|
|
1217 (narrow-to-region from to)
|
|
|
1218 (goto-char (point-min))
|
|
|
1219 (while (re-search-forward devanagari-composite-glyph-unit nil t)
|
|
|
1220 (let* ((match-b (match-beginning 0)) (match-e (match-end 0))
|
|
|
1221 (cmps (devanagari-composition-component
|
|
|
1222 (apply
|
|
|
1223 'char-to-glyph-devanagari
|
|
|
1224 (cons (buffer-substring match-b match-e) langs)))))
|
|
|
1225 (compose-region match-b match-e cmps))))))
|
|
|
1226
|
|
|
1227 ;; For pre-write and post-read conversion
|
|
|
1228
|
|
|
1229 ;;;###autoload
|
|
|
1230 (defun devanagari-compose-from-is13194-region (from to)
|
|
|
1231 "Compose IS 13194 characters in the region to Devanagari characters."
|
|
|
1232 (interactive "r")
|
|
|
1233 (save-excursion
|
|
|
1234 (save-restriction
|
|
|
1235 (narrow-to-region from to)
|
|
|
1236 (indian-to-devanagari-region (point-min) (point-max))
|
|
|
1237 (devanagari-compose-region (point-min) (point-max))
|
|
|
1238 (- (point-max) (point-min)))))
|
|
|
1239
|
|
|
1240 ;;;###autoload
|
|
|
1241 (defun in-is13194-devanagari-post-read-conversion (len)
|
|
|
1242 (let ((pos (point)))
|
|
|
1243 (devanagari-compose-from-is13194-region pos (+ pos len))))
|
|
|
1244
|
|
|
1245 ;;;###autoload
|
|
|
1246 (defun devanagari-decompose-to-is13194-region (from to)
|
|
|
1247 "Decompose Devanagari characters in the region to IS 13194 characters."
|
|
|
1248 (interactive "r")
|
|
|
1249 (save-excursion
|
|
|
1250 (save-restriction
|
|
|
1251 (narrow-to-region from to)
|
|
|
1252 (devanagari-decompose-region (point-min) (point-max))
|
|
|
1253 (devanagari-to-indian-region (point-min) (point-max)))))
|
|
|
1254
|
|
|
1255 ;;;###autoload
|
|
|
1256 (defun in-is13194-devanagari-pre-write-conversion (from to)
|
|
|
1257 (let ((old-buf (current-buffer)))
|
|
|
1258 (set-buffer (generate-new-buffer " *temp*"))
|
|
|
1259 (if (stringp from)
|
|
|
1260 (insert from)
|
|
|
1261 (insert-buffer-substring old-buf from to))
|
|
|
1262 (devanagari-decompose-to-is13194-region (point-min) (point-max))
|
|
|
1263 ;; Should return nil as annotations.
|
|
|
1264 nil))
|
|
|
1265
|
|
|
1266 ;; For input/output of ITRANS
|
|
|
1267
|
|
|
1268 ;;;###autoload
|
|
|
1269 (defun devanagari-encode-itrans-region (from to)
|
|
|
1270 (interactive "r")
|
|
|
1271 (save-restriction
|
|
|
1272 (narrow-to-region from to)
|
|
|
1273 (devanagari-decompose-to-is13194-region (point-min) (point-max))
|
|
|
1274 (indian-encode-itrans-region (point-min) (point-max))))
|
|
|
1275
|
|
|
1276 ;;;###autoload
|
|
|
1277 (defun devanagari-decode-itrans-region (from to)
|
|
|
1278 (interactive "r")
|
|
|
1279 (save-restriction
|
|
|
1280 (narrow-to-region from to)
|
|
|
1281 (indian-decode-itrans-region (point-min) (point-max))
|
|
|
1282 (devanagari-compose-from-is13194-region (point-min) (point-max))))
|
|
|
1283
|
|
|
1284 ;;
|
|
|
1285 (provide 'devan-util)
|
|
|
1286
|
|
|
1287 ;; Local Variables:
|
|
|
1288 ;; coding: iso-2022-7bit
|
|
|
1289 ;; End:
|
|
778
|
1290
|
|
|
1291 ;;; devan-util.el end here
|
