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45717142ef
they used to do some other jobs than what done by set-language-environment, those jobs are done in setup-XXX-environment-internal now.
1315 lines
45 KiB
EmacsLisp
1315 lines
45 KiB
EmacsLisp
;;; devan-util.el --- Support for Devanagari Script Composition
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;; Copyright (C) 1996 Free Software Foundation, Inc.
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;; Author: KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
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;; Keywords: multilingual, Indian, Devanagari
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; History:
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;; 1996.10.18 written by KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp>
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;; 1997.3.24 fixed some bugs.
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;; Future work ::
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;; Decompose the input characters and process them on the character basis.
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;; Devanagari script composition rules and related programs.
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;;; Code:
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;;;
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;;; Steps toward composition of Devanagari Characters.
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;;;
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;;;###autoload
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(defun setup-devanagari-environment ()
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"Setup multilingual environment (MULE) for languages using Devanagari."
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(interactive)
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(set-language-environment "Devanagari"))
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;;; Basic functions.
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;;;###autoload
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(defun indian-to-devanagari (ch)
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"Convert IS 13194 characters to Devanagari basic characters."
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(let ((charcodes (split-char ch)))
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(if (eq (car charcodes) 'indian-is13194)
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(make-char 'indian-2-column ?\x21 (nth 1 charcodes))
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ch)))
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;;;###autoload
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(defun devanagari-to-indian (ch)
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"Convert Devanagari basic characters to IS 13194 characters."
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(let* ((charcodes (split-char ch))
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(charset (car charcodes))
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(code-h (car (cdr charcodes))))
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(if (and (eq (car charcodes) 'indian-2-column)
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(= (nth 1 charcodes) ?\x21))
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(make-char 'indian-is13194 (nth 2 charcodes))
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ch)))
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;;;###autoload
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(defun indian-to-devanagari-region (from to)
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"Convert IS 13194 characters in region to Devanagari basic characters."
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(interactive "r")
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(save-restriction
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(narrow-to-region from to)
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(goto-char (point-min))
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; (while (re-search-forward "\\cd" nil t)
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(while (re-search-forward "." nil t)
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(let* ((devanagari-char (indian-to-devanagari (preceding-char))))
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(delete-char -1)
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(insert devanagari-char)))))
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;;;###autoload
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(defun devanagari-to-indian-region (from to)
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"Convert Devanagari basic characters in region to Indian characters."
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(interactive "r")
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(save-restriction
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(narrow-to-region from to)
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(goto-char (point-min))
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; (while (re-search-forward "\\cD" nil t) ; Devanagari Character Code.
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(while (re-search-forward "." nil t)
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(let* ((indian-char (devanagari-to-indian (preceding-char))))
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(delete-char -1)
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(insert indian-char)))))
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;;;###autoload
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(defun indian-to-devanagari-string (str)
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"Convert Indian String to Devanagari Basic Character String."
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(let* ((len (length str))
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(i 0)
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(vec (make-vector len 0)))
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(while (< i len)
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(aset vec i (indian-to-devanagari (aref str i)))
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(setq i (1+ i)))
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(concat vec)))
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;; Phase 0 - Determine whether the characters can be composed.
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;;
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;;;
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;;; Regular expressions to split characters for composition.
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;;;
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;;
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;; Indian script word contains one or more syllables.
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;; In BNF, it can be expressed as follows:
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;;
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;; Word ::= {Syllable} [Cons-Syllable]
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;; Syllable ::= Cons-Vowel-Syllable | Vowel-Syllable
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;; Vowel-Syllable ::= V[D]
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;; Cons-Vowel-Syllable ::= [Cons-Syllable] Full-Cons [M] [D]
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;; Cons-Syllable ::= [Pure-Cons] [Pure-Cons] [Pure-Cons] Pure-Cons
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;; Pure-Cons ::= Full-Cons H
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;; Full-Cons ::= C [N]
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;;
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;; {} repeat, [] optional
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;;
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;; C - Consonant ($(5!3!4!5!6!7!8!9!:!;!<!=!>!?!@!A!B!C!D!E(B
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;; $(5!F!G!H!I!J!K!L!M!N!O!P!Q!R!S!T!U!V!W!X(B)
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;; N - Nukta ($(5!i(B)
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;; H - Halant($(5!h(B) or Virama
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;; V - Vowel ($(5!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2#&#'#*(B)
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;; ("$(5#&#'#*(B" can be obtained by IS13194 vowels with nukta.)
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;; D - Vowel Modifiers, i.e. Anuswar, Chandrabindu ($(5!!!"(B)
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;; (Visaraga ($(5!#(B) is excluded.)
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;; M - Matra ($(5!Z![!\!]!^!_!`!a!b!c!d!e!f!g#K#L#M(B)
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;; ("$(5#K#L#M(B" can be obtained by IS13194 matras with nukta.)
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;;
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;; In Emacs, one syllable of Indian language is considered to be one
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;; composite glyph. If we expand the above expression for
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;; cons-vowel-syllable, it would be:
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;;
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;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] [D]
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;;
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;; Therefore, in worst case, the one syllable may contain
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;; following characters.
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;;
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;; C N H C N H C N H C N H C N M D
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;;
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;; The example is a sanskrit word "kArtsnya", where five consecutive
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;; consonants appear.
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;;
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;; On the other hand, consonant-syllable, which appears at the end of
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;; the word, would have the following expression:
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;;
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;; [C [N] H] [C [N] H] [C [N] H] C [N] H
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;;
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;; This is acceptable BEFORE proper consonant-syllable is input. The
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;; string which doesn't match with the above expression is invalid and
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;; thus must be fixed.
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;;
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;; Note:
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;; Third case can be considered, which is an acceptable syllable and can
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;; not add any code more.
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;;
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;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] D
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;;
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;; However, to make editing possible even in this condition, we will
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;; not consider about this case.
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;;
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;; Note:
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;; Currently, it seems that the only following consonants would have
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;; Nukta sign attatched.
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;; ($(5!3!4!5!:!?!@!I(B)
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;; Therefore, [$(5!3(B-$(5!X(B]$(5!i(B? can be re-written as
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;; \\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X(B]
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(defconst devanagari-full-cons
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"\\(\\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X$.$E"%(B]\\)"
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"Devanagari full consonant")
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(defconst devanagari-pure-cons
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(concat "\\(" devanagari-full-cons "$(5!h(B\\)")
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"Devanagari pure consonant")
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(defconst devanagari-matra
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"\\(\\([$(5!_![!\(B]$(5!i(B\\)\\|[$(5!Z(B-$(5!g#K#L#M(B]\\)"
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"Devanagari Matra Signs. '$(5#K#L#M(B' can also be created from the combination
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of '$(5!_![!\(B' and nukta sign.")
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(defconst devanagari-vowel
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"\\(\\([$(5!*!&!'(B]$(5!i(B\\)\\|[$(5!$(B-$(5!2#&#'#*(B]\\)"
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"Devanagari Vowels. '$(5#&#'#*(B' can also be created from the combination
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of '$(5!*!&!'(B' and nukta sign.")
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(defconst devanagari-vowel-syllable
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(concat devanagari-vowel "[$(5!!!"(B]?")
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"Devanagari vowel syllable.")
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(defconst devanagari-cons-syllable
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(concat devanagari-pure-cons "?" devanagari-pure-cons "?"
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devanagari-pure-cons "?" devanagari-pure-cons "$")
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"Devanagari consonant syllable")
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(defconst devanagari-cons-vowel-syllable
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(concat "\\("
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devanagari-pure-cons "?" devanagari-pure-cons "?"
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devanagari-pure-cons "?" devanagari-pure-cons "\\)?"
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devanagari-full-cons devanagari-matra "?[$(5!!!"(B]?")
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"Devanagari consonant vowel syllable.")
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;;
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;; Also, digits and virams should be processed other than syllables.
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;;
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;; In IS 13194, Avagrah is obtained by Nukta after Viram, and
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;; OM is obtained by Nukta after Chandrabindu
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;;
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(defconst devanagari-digit-viram-visarga
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"[$(5!q(B-$(5!z!j!#(B]")
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(defconst devanagari-other-sign
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"\\([$(5!!!j(B]$(5!i(B\\)\\|\\([$(5#!#J(B]\\)")
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(defconst devanagari-composite-glyph-unit
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(concat "\\(" devanagari-cons-syllable
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"\\)\\|\\(" devanagari-vowel-syllable
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"\\)\\|\\(" devanagari-cons-vowel-syllable
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"\\)\\|\\(" devanagari-other-sign
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"\\)\\|\\(" devanagari-digit-viram-visarga "\\)")
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"Regexp matching to Devanagari string to be composed form one glyph.")
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;;(put-charset-property charset-devanagari-1-column
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;; 'char-to-glyph 'devanagari-compose-string)
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;;(put-charset-property charset-devanagari-2-column
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;; 'char-to-glyph 'devanagari-compose-string)
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;; Sample
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;;
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;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![(B") => 0
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;;(string-match devanagari-cons-vowel-syllable-examine "$(5!F!h!D!\(B") => 0
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;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![!F!h!D!\(B") => 0
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;;
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;; Steps toward the composition
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;; Converting Character Codes to Composite Glyph.
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;;
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;; Example : $(5!X![(B/$(5!F!h!D!\(B
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;;
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;; First, convert Characters to appropriate glyphs.
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;;
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;; => $(5!X![(B/$(5"F!D!\(B
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;;
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;; Then, determine the base glyph, apply-orders and apply-rules.
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;;
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;; => $(5!X(B (ml.mr) $(5![(B / $(5!D(B (ml.mr) $(5"F(B (mr ml) $(5!\(B
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;;
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;; Finally, convert 2-column glyphs to 1-column glyph
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;; if such a glyph exist.
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;;
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;; => $(6![(B (ml.mr) $(6!X(B / $(6!D(B (ml.mr) $(6"F(B (mr ml) $(6!\(B
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;;
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;; Compose the glyph.
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;;
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;; => 2$(6!X@![(B1/2$(6!D@"FP!\(B1
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;; => 2$(6!X@![(B12$(6!D@"FP!\(B1
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;;
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;;
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;; Phase 1: Converting Character Code to Glyph Code.
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;;
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;;
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;; IMPORTANT:
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;; There may be many rules which you many want to be suppressed.
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;; In that case, please comment out that rule.
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;;
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;; RULES WILL BE EVALUATED FROM FIRST TO LAST.
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;; PUT MORE SPECIFIC RULES FIRST.
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;;
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;; TO DO:
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;; Prepare multiple specific list of rules for each languages
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;; which adopts Devanagari script.
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;;
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(defconst devanagari-char-to-glyph-rules
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'(
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;; `r' at the top of syllable and followed by other consonants.
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;; ("[^$(5!h(B]\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
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("^\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B")
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;; Ligature Rules
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("\\($(5!3!h!B!h!O!h!M(B\\)" "$(5$!(B" sanskrit)
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("\\($(5!3!h!B!h!T(B\\)" "$(5$"(B" sanskrit)
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("\\($(5!3!h!B!h!M(B\\)" "$(5$#(B" sanskrit)
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("\\($(5!3!h!F!h!M(B\\)" "$(5$$(B")
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("\\($(5!3!h!O!h!M(B\\)" "$(5$%(B")
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("\\($(5!3!h!O(B\\)" "$(5"#(B") ; Post "r"
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("\\($(5!3!h!T!h!M(B\\)" "$(5$&(B" sanskrit)
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("\\($(5!3!h(B\\)$(5!3!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Special Half Form
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("\\($(5!3!h!3(B\\)" "$(5$'(B")
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("\\($(5!3!h(B\\)$(5!B!h!O(B" "$(5"3(B") ; Special Rules for "k-tr"
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("\\($(5!3!h!B(B\\)" "$(5$((B")
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("\\($(5!3!h!F(B\\)" "$(5$)(B")
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("\\($(5!3!h!L(B\\)" "$(5$*(B")
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("\\($(5!3!h!M(B\\)" "$(5$+(B")
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("\\($(5!3!h!Q(B\\)" "$(5$,(B")
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("\\($(5!3!h!T(B\\)" "$(5$-(B")
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("\\($(5!3!h!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
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("\\($(5$.!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form
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("\\($(5!3!h!V(B\\)" "$(5$.(B")
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("\\($(5!3!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Half Form
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("\\($(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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("\\($(5!3!i(B\\)" "$(5#3(B") ; Nukta
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("\\($(5!4!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"4(B") ; Half Form
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("\\($(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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("\\($(5!4!i(B\\)" "$(5#4(B") ; Nukta
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("\\($(5!5!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"`(B") ; Half Form
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("\\($(5!5!h!O(B\\)" "$(5"$(B") ; Post "r"
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("\\($(5!5!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"5(B") ; Half Form
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("\\($(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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("\\($(5!5!i(B\\)" "$(5#5(B") ; Nukta
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("\\($(5!6!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"a(B") ; Half Form
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("\\($(5!6!h!F(B\\)" "$(5$/(B")
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; Slot
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("\\($(5!6!h!O(B\\)" "$(5!6"q(B") ; Post "r"
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("\\($(5!6!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"6(B") ; Half Form
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("\\($(5!7!h!3!h!B!h!M(B\\)" "$(5$0(B" sanskrit)
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("\\($(5!7!h!3!h!V!h!T(B\\)" "$(5$1(B" sanskrit)
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("\\($(5!7!h!3!h!B(B\\)" "$(5$2(B" sanskrit)
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("\\($(5!7!h!3!h!V(B\\)" "$(5$3(B" sanskrit)
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("\\($(5!7!h!3!h!O(B\\)" "$(5$9"q(B") ; Special Rule. May be precomposed font needed.
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("\\($(5!7!h!6!h!O(B\\)" "$(5$4(B" sanskrit)
|
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("\\($(5!7!h!3!h!M(B\\)" "$(5$5(B" sanskrit)
|
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("\\($(5!7!h!4!h!M(B\\)" "$(5$6(B" sanskrit)
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("\\($(5!7!h!5!h!M(B\\)" "$(5$7(B" sanskrit)
|
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("\\($(5!7!h!6!h!M(B\\)" "$(5$8(B" sanskrit)
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("\\($(5!7!h!3(B\\)" "$(5$9(B")
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("\\($(5!7!h!4(B\\)" "$(5$:(B")
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("\\($(5!7!h!5!h!O(B\\)" "$(5$;"q(B") ; Special Rule. May be precomposed font needed.
|
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("\\($(5!7!h!5(B\\)" "$(5$;(B")
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("\\($(5!7!h!6(B\\)" "$(5$<(B")
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("\\($(5!7!h!7(B\\)" "$(5$=(B")
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("\\($(5!7!h!F(B\\)" "$(5$>(B")
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("\\($(5!7!h!L(B\\)" "$(5$?(B")
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("\\($(5!7!h!M(B\\)" "$(5$@(B")
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("\\($(5!8!h(B\\)[$(5!8!<(B]$(5!h(B" "$(5"8(B") ; Half Form
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("\\($(5!8!h!8(B\\)" "$(5$A(B")
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("\\($(5!8!h!<(B\\)" "$(5$B(B")
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("\\($(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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("\\($(5!8!h!O(B\\)" "$(5!8"q(B") ; Post "r"
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("\\($(5!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8(B") ; Half Form
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("\\($(5!9!h!M(B\\)" "$(5$C(B")
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("\\($(5!:!h!O(B\\)" "$(5$D(B")
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("\\($(5!:!h!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"m(B") ; Half Form
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("\\($(5!:!h!<(B\\)" "$(5$E(B")
|
||
("\\($(5!:!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5":(B") ; Half Form
|
||
("\\($(5!:!i!h!O(B\\)" "$(5"!(B") ; Nukta Post "r"
|
||
("\\($(5!:!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"z(B") ; Nukta Half Form
|
||
("\\($(5!:!i(B\\)" "$(5#:(B") ; Nukta
|
||
("\\($(5!;!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5";(B") ; Half Form
|
||
("\\($(5!<!h(B\\)$(5!8!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
|
||
("\\($(5!<!h!8(B\\)" "$(5$F(B")
|
||
("\\($(5!<!h(B\\)$(5!:!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Special Half Form
|
||
("\\($(5!<!h!:(B\\)" "$(5$G(B")
|
||
("\\($(5!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"<(B") ; Half Form
|
||
("\\($(5!=!h!3(B\\)" "$(5$H(B")
|
||
("\\($(5!=!h!=(B\\)" "$(5$I(B")
|
||
("\\($(5!=!h!>(B\\)" "$(5$J(B")
|
||
("\\($(5!=!h!M(B\\)" "$(5$K(B")
|
||
("\\($(5!>!h!M(B\\)" "$(5$L(B")
|
||
("\\($(5!?!h!5!h!M(B\\)" "$(5$M(B" sanskrit)
|
||
("\\($(5!?!h!6!h!O(B\\)" "$(5$N(B" sanskrit)
|
||
("\\($(5!?!h!O!h!M(B\\)" "$(5$O(B")
|
||
("\\($(5!?!h!5(B\\)" "$(5$P(B")
|
||
("\\($(5!?!h!6(B\\)" "$(5$Q(B")
|
||
("\\($(5!?!h!?(B\\)" "$(5$R(B")
|
||
("\\($(5!?!h!L(B\\)" "$(5$S(B")
|
||
("\\($(5!?!h!M(B\\)" "$(5$T(B")
|
||
("\\($(5!?!i(B\\)" "$(5#?(B") ; Nukta
|
||
("\\($(5!@!h!M(B\\)" "$(5$`(B")
|
||
("\\($(5!@!i(B\\)" "$(5#@(B") ; Nukta
|
||
("\\($(5!A!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"A(B") ; Half Form
|
||
("\\($(5!B!h(B\\)$(5!B!h!O(B" "$(5"B(B") ; Special Rule for "t-tr"
|
||
("\\($(5!B!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"c(B") ; Half Form
|
||
("\\($(5!B!h!B(B\\)" "$(5$a(B")
|
||
("\\($(5!B!h!F(B\\)" "$(5$b(B")
|
||
("\\($(5!B!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"d(B") ; Half Form Post "r"
|
||
("\\($(5!B!h!O(B\\)" "$(5"%(B") ; Post "r"
|
||
("\\($(5!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"B(B") ; Half Form
|
||
("\\($(5!C!h!O(B\\)" "$(5!C"q(B") ; Post "r"
|
||
("\\($(5!C!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"C(B") ; Half Form
|
||
("\\($(5!D!h!D!h!M(B\\)" "$(5$c(B")
|
||
("\\($(5!D!h!E!h!M(B\\)" "$(5$d(B")
|
||
("\\($(5!D!h!K!h!M(B\\)" "$(5$e(B")
|
||
("\\($(5!D!h!K!h!O(B\\)" "$(5$r"r(B") ; Special Case for "dbhr" ; ***
|
||
("\\($(5!D!h!O!h!M(B\\)" "$(5$f(B")
|
||
("\\($(5!D!h!T!h!M(B\\)" "$(5$g(B")
|
||
("\\($(5!D!h!5!h!O(B\\)" "$(5$h(B")
|
||
("\\($(5!D!h!6!h!O(B\\)" "$(5$i(B")
|
||
("\\($(5!D!h!D!h!T(B\\)" "$(5$j(B")
|
||
("\\($(5!D!h!E!h!T(B\\)" "$(5$k(B")
|
||
("\\($(5!D!h(B\\)$(5!E!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5!D!h(B") ; Special Half Form (for ddhra)
|
||
("\\($(5!D!h!5(B\\)" "$(5$l(B")
|
||
("\\($(5!D!h!6(B\\)" "$(5$m(B")
|
||
("\\($(5!D!h!D(B\\)" "$(5$n(B")
|
||
("\\($(5!D!h!E(B\\)" "$(5$o(B")
|
||
("\\($(5!D!h!F(B\\)" "$(5$p(B")
|
||
("\\($(5!D!h(B\\)$(5!J!h(B" "$(5!D!h(B") ; Suppressing "db-"
|
||
("\\($(5!D!h!J(B\\)" "$(5$q(B")
|
||
("\\($(5!D!h!K(B\\)" "$(5$r(B")
|
||
("\\($(5!D!h!L(B\\)" "$(5$s(B")
|
||
("\\($(5!D!h!M(B\\)" "$(5$t(B")
|
||
("\\($(5!D!h!T(B\\)" "$(5$u(B")
|
||
("\\($(5!E!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"e(B") ; Half Form
|
||
("\\($(5!E!h!F(B\\)" "$(5$v(B")
|
||
("\\($(5!E!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"f(B") ; Half Form Post "r"
|
||
("\\($(5!E!h!O(B\\)" "$(5!E"q(B") ; Post "r"
|
||
("\\($(5!E!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"E(B") ; Half Form
|
||
("\\($(5!F!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"k(B") ; Half Form
|
||
("\\($(5!F!h!F(B\\)" "$(5$w(B")
|
||
("\\($(5!F!h!O(B\\)" "$(5!F"q(B")
|
||
("\\($(5!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"F(B") ; Half Form
|
||
("\\($(5!G!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"G(B") ; Nukta Half Form
|
||
("\\($(5!H!h(B\\)$(5!B!h!O(B" "$(5"H(B") ; Special Rule for "p-tr"
|
||
("\\($(5!H!h!B!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"g(B") ; Half Form
|
||
("\\($(5!H!h!B(B\\)" "$(5$x(B")
|
||
("\\($(5!H!h!F(B\\)" "$(5$y(B")
|
||
("\\($(5!H!h!Q(B\\)" "$(5$z(B")
|
||
("\\($(5!H!h!O(B\\)" "$(5"&(B") ; Post "r"
|
||
("\\($(5!H!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"H(B") ; Half Form
|
||
("\\($(5!I!h!O(B\\)" "$(5"'(B") ; Post "r"
|
||
("\\($(5!I!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"I(B") ; Half Form
|
||
("\\($(5!I!i!h!O(B\\)" "$(5""(B") ; Nukta Post "r"
|
||
("\\($(5!I!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"y(B") ; Nukta Half Form
|
||
("\\($(5!I!i(B\\)" "$(5#I(B") ; Nukta
|
||
("\\($(5!J!h(B\\)$(5!F!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
|
||
("\\($(5!J!h!F(B\\)" "$(5${(B")
|
||
("\\($(5!J!h(B\\)$(5!J!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
|
||
("\\($(5!J!h!J(B\\)" "$(5$|(B")
|
||
("\\($(5!J!h(B\\)$(5!T!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Special Half Form
|
||
("\\($(5!J!h!T(B\\)" "$(5$}(B")
|
||
("\\($(5!J!h!O(B\\)" "$(5!J"q(B") ; Post "r"
|
||
("\\($(5!J!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"J(B") ; Half Form
|
||
("\\($(5!K!h!F(B\\)" "$(5$~(B")
|
||
("\\($(5!K!h!O(B\\)" "$(5!K"q(B") ; Post "r"
|
||
("\\($(5!K!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"K(B") ; Half Form
|
||
("\\($(5!L!h!F(B\\)" "$(5#P(B")
|
||
("\\($(5!L!h!Q(B\\)" "$(5#Q(B")
|
||
("\\($(5!L!h!O(B\\)" "$(5!L"q(B") ; Post "r"
|
||
("\\($(5!L!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"L(B") ; Half Form
|
||
("\\($(5!M!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"M(B") ; Half Form
|
||
("\\($(5!N!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"N(B") ; Half Form
|
||
;; special form for "ru".
|
||
("\\($(5!O!](B\\)" "$(5",(B")
|
||
("\\($(5!O!^(B\\)" "$(5"-(B")
|
||
("\\($(5!P!](B\\)" "$(5".(B")
|
||
("\\($(5!P!^(B\\)" "$(5"/(B")
|
||
;;
|
||
("\\($(5!Q!h!Q(B\\)" "$(5#`(B" sanskrit)
|
||
("\\($(5!Q!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"Q(B") ; Half Form
|
||
("\\($(5!R!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"R(B") ; Half Form
|
||
("\\($(5!S!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"S(B") ; Half Form
|
||
("\\($(5!T!h!F(B\\)" "$(5#a(B")
|
||
("\\($(5!T!h!T(B\\)" "$(5#b(B")
|
||
("\\($(5!T!h!O(B\\)" "$(5!T"q(B") ; Post "r"
|
||
("\\($(5!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"T(B") ; Half Form
|
||
("\\($(5!U!h!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"h(B") ; Half Form
|
||
("\\($(5!U!h!8(B\\)" "$(5#c(B")
|
||
("\\($(5!U!h!F(B\\)" "$(5#d(B")
|
||
("\\($(5!U!h!J(B\\)" "$(5#e(B")
|
||
("\\($(5!U!h!Q(B\\)" "$(5#f(B")
|
||
("\\($(5!U!h(B\\)$(5!T!h!O(B" "$(5"U(B") ; Special Half Form
|
||
("\\($(5!U!h!T!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"j(B") ; Half Form
|
||
; ("\\($(5!U!h!T(B\\)" "$(5#g(B")
|
||
("\\($(5!U!h!O!h!T(B\\)" "$(5#g(B")
|
||
("\\($(5!U!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"i(B") ; Half Form
|
||
("\\($(5!U!h!O(B\\)" "$(5")(B") ; Post "r"
|
||
("\\($(5!U!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"U(B") ; Half Form
|
||
("\\($(5!V!h!=!h!O!h!M(B\\)" "$(5#h(B")
|
||
("\\($(5!V!h!=!h!M(B\\)" "$(5#i(B")
|
||
("\\($(5!V!h!=!h!T(B\\)" "$(5#j(B")
|
||
("\\($(5!V!h!=(B\\)" "$(5#k(B")
|
||
("\\($(5!V!h!>(B\\)" "$(5#l(B")
|
||
("\\($(5!V!h!O(B\\)" "$(5!V"q(B") ; Post "r"
|
||
("\\($(5!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"V(B") ; Half Form
|
||
("\\($(5!W!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W"F(B") ; Special Half Form
|
||
("\\($(5!W!h!F(B\\)" "$(5#m(B")
|
||
("\\($(5!W!h!O(B\\)" "$(5#n(B")
|
||
("\\($(5!W!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"W(B") ; Half Form
|
||
("\\($(5!X!h!A(B\\)" "$(5#p(B")
|
||
("\\($(5!X!h!F(B\\)" "$(5#q(B")
|
||
("\\($(5!X!h!L(B\\)" "$(5#r(B")
|
||
("\\($(5!X!h!M(B\\)" "$(5#s(B")
|
||
("\\($(5!X!h!O(B\\)" "$(5#t(B")
|
||
("\\($(5!X!h!Q(B\\)" "$(5#u(B")
|
||
("\\($(5!X!h!T(B\\)" "$(5#v(B")
|
||
;; Special Ligature Rules
|
||
("\\($(5!X!_(B\\)" "$(5#R(B")
|
||
|
||
;; For consonants other than listed above, glyph-composition will
|
||
;; be applied. If the consonant which is preceding "$(5!O(B" does not
|
||
;; have the vertical line (such as "$(5!?(B"), "$(5"r(B" is put beneath the
|
||
;; consonant.
|
||
;;
|
||
("[$(5!7!9!=!>!?!@!D!O!P!R!S!X(B]\\($(5!h!O(B\\)" "$(5"r(B")
|
||
("[$(5!6!8!C!E!F!H!J!K!L!M!T!V(B]\\($(5!h!O(B\\)" "$(5"q(B")
|
||
("$(5!?!i(B\\($(5!h!O(B\\)" "$(5"r(B")
|
||
("$(5!@!i(B\\($(5!h!O(B\\)" "$(5"r(B")
|
||
|
||
;; Nukta with Non-Consonants
|
||
("\\($(5!!!i(B\\)" "$(5#!(B")
|
||
("\\($(5!&!i(B\\)" "$(5#&(B")
|
||
("\\($(5!'!i(B\\)" "$(5#'(B")
|
||
("\\($(5!*!i(B\\)" "$(5#*(B")
|
||
("\\($(5![!i(B\\)" "$(5#L(B")
|
||
("\\($(5!\!i(B\\)" "$(5#M(B")
|
||
("\\($(5!_!i(B\\)" "$(5#K(B")
|
||
("\\($(5!j!i(B\\)" "$(5#J(B")
|
||
|
||
;; Special rule for "r + some vowels"
|
||
("\\($(5!O!_!i(B\\)" "$(5#*"p(B")
|
||
("\\($(5!O![!i(B\\)" "$(5#&"p(B")
|
||
("\\($(5!O!\!i(B\\)" "$(5#'"p(B")
|
||
("\\($(5!O!_(B\\)" "$(5!*"p(B")
|
||
;; If everything fails, "y" will connect to the front consonant.
|
||
("\\($(5!h!M(B\\)" "$(5"](B")
|
||
)
|
||
"Alist of regexps of Devanagari character sequences vs composed characters.")
|
||
|
||
(let ((rules devanagari-char-to-glyph-rules))
|
||
(while rules
|
||
(let ((rule (car rules))
|
||
(chars) (char) (glyphs) (glyph))
|
||
(setq rules (cdr rules))
|
||
(string-match "\\\\(\\(.+\\)\\\\)" (car rule))
|
||
(setq chars (substring (car rule) (match-beginning 1) (match-end 1)))
|
||
(setq char (string-to-char chars))
|
||
(setq glyphs (cdr rule))
|
||
(setq glyph (string-to-char (car glyphs)))
|
||
(put-char-code-property
|
||
char 'char-to-glyph
|
||
;; We don't "cons" it since priority is top to down.
|
||
(append (get-char-code-property char 'char-to-glyph) (list rule)))
|
||
|
||
(if (and (< ?(5z(B glyph) ; Glyphs only.
|
||
(null (get-char-code-property glyph 'glyph-to-char)))
|
||
; One glyph may corresponds to multiple characters,
|
||
; e.g., surrounding vowel in Tamil, etc.
|
||
; but for Devanagari, we put this restriction
|
||
; to make sure the fact that one glyph corresponds to one char.
|
||
(put-char-code-property
|
||
glyph 'glyph-to-char
|
||
(cons (list (car glyphs) chars)
|
||
(get-char-code-property glyph 'glyph-to-char)
|
||
))))))
|
||
|
||
;;
|
||
;; Function used in both characters-to-glyphs conversion and
|
||
;; glyphs-to-characters conversion.
|
||
;;
|
||
|
||
(defun max-match-len (regexp-str)
|
||
"Return the possible length of matched string of given regexp.
|
||
Only [...] pattern of regexp is recognized.
|
||
The last character of inside of [....] is used for its length."
|
||
(let ((dest-str regexp-str))
|
||
(while (string-match "\\[\\([^\]]\\)+\\]" dest-str)
|
||
(setq dest-str
|
||
(concat (substring dest-str 0 (match-beginning 0))
|
||
(substring dest-str (match-beginning 1) (match-end 1))
|
||
(substring dest-str (match-end 0)))))
|
||
(length dest-str)))
|
||
|
||
;; Return t iff LIST1 and LIST2 has a same member.
|
||
(defun rule-intersection (list1 list2)
|
||
(let ((found nil))
|
||
(while (and list1 (not found))
|
||
(if (memq (car list1) list2)
|
||
(setq found t)
|
||
(setq list1 (cdr list1))))
|
||
found))
|
||
|
||
(defun string-conversion-by-rule (src-str symbol &rest specs)
|
||
"Convert string SRC-STR to a new string according to
|
||
the rules described in the each character's SYMBOL property. The
|
||
rules are described in the forms of '((regexp str <specs>) ...), and
|
||
the character sequence in the string which matches to 'regexp' are
|
||
replaced with str. If SPECS are not specified, only rules with no
|
||
<specs> would be applied. If SPECS are specified, then rules with no
|
||
<specs> specified and rules with <spec> matches with SPECS would be
|
||
applied. Rules are tested in the order of the list, thus more
|
||
specific rules should be placed in front of less important rules. No
|
||
composite character is supported, thus such must be converted by
|
||
decompose-char before applying to this function. If rule is given in
|
||
the forms of regexp '...\\(...\\)...', then inside the parenthesis is
|
||
the subject of the match. Otherwise, the entire expression is the
|
||
subject of the match."
|
||
(let ((pos 0)
|
||
(dst-str ""))
|
||
(while (< pos (length src-str))
|
||
(let ((found nil)
|
||
(rules (get-char-code-property
|
||
(string-to-char
|
||
(substring src-str pos)) symbol)))
|
||
(while rules
|
||
(let* ((rule (car rules))
|
||
(regexp (car rule))
|
||
(replace-str (car (cdr rule)))
|
||
(rule-specs (cdr (cdr rule)))
|
||
search-pos)
|
||
(if (not (or (null rule-specs)
|
||
(rule-intersection specs rule-specs)))
|
||
(setq rules (cdr rules))
|
||
(if (null (string-match "\\\\(.+\\\\)" regexp))
|
||
(progn
|
||
(setq regexp (concat "\\(" regexp "\\)"))
|
||
(setq search-pos pos))
|
||
(setq search-pos (- pos (max-match-len
|
||
(substring regexp
|
||
(string-match "^[^\\\\]*" regexp)
|
||
(match-end 0))))))
|
||
(if (< search-pos 0) (setq search-pos 0))
|
||
(if (string-match regexp src-str search-pos)
|
||
(if (= (match-beginning 1) pos)
|
||
(progn
|
||
(setq dst-str (concat dst-str replace-str))
|
||
(setq rules nil) ; Get out of the loop.
|
||
(setq found t)
|
||
;; proceed `pos' for replaced characters.
|
||
(setq pos (match-end 1)))
|
||
(setq rules (cdr rules)))
|
||
(setq rules (cdr rules))))))
|
||
;; proceed to next position
|
||
(if (not found)
|
||
(setq dst-str (concat dst-str (substring src-str pos (1+ pos)))
|
||
pos (1+ pos)))))
|
||
dst-str))
|
||
|
||
|
||
;;
|
||
;; Convert Character Code to Glyph Code
|
||
;;
|
||
|
||
;;;###autoload
|
||
(defun char-to-glyph-devanagari (src-str &rest langs)
|
||
"Convert Devanagari characters in the string to Devanagari glyphs.
|
||
Ligatures and special rules are processed."
|
||
(apply
|
||
'string-conversion-by-rule
|
||
(append (list src-str 'char-to-glyph) langs)))
|
||
|
||
;; Example:
|
||
;;(char-to-glyph-devanagari "$(5!X)
|
||
(?$(5!^(B 0 (br . tr))
|
||
(?$(5!_(B 0 (br . tr))
|
||
(?$(5!`(B 0 (mr . mr)) ; (tc . bc)
|
||
(?$(5!a(B 0 (mr . mr))
|
||
(?$(5!b(B 0 (mr . mr))
|
||
(?$(5!c(B 0 (mr . mr))
|
||
(?$(5!d(B 0)
|
||
(?$(5!e(B 0)
|
||
(?$(5!f(B 0)
|
||
(?$(5!g(B 0)
|
||
(?$(5!h(B 0 (br . tr))
|
||
(?$(5!i(B 0 (br . tr))
|
||
(?$(5!j(B 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(?$(5!q(B 0)
|
||
(?$(5!r(B 0)
|
||
(?$(5!s(B 0)
|
||
(?$(5!t(B 0)
|
||
(?$(5!u(B 0)
|
||
(?$(5!v(B 0)
|
||
(?$(5!w(B 0)
|
||
(?$(5!x(B 0)
|
||
(?$(5!y(B 0)
|
||
(?$(5!z(B 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(nil 0)
|
||
(?$(5"!(B 0)
|
||
(?$(5""(B 0)
|
||
(?$(5"#(B 0)
|
||
(?$(5"$(B 0)
|
||
(?$(5"%(B 0)
|
||
(?$(5"&(B 0)
|
||
(?$(5"'(B 0)
|
||
(?$(5"((B 0)
|
||
(?$(5")(B 0)
|
||
(?$(5"*(B 0)
|
||
(?$(5"+(B 0)
|
||
(?$(5",(B 0)
|
||
(?$(5"-(B 0)
|
||
(?$(5".(B 0)
|
||
(?$(5"/(B 0)
|
||
(?$(5"0(B 0)
|
||
(?$(5"1(B 0)
|
||
(?$(5"2(B 0)
|
||
(?$(5"3(B 0)
|
||
(?$(5"4(B 0)
|
||
(?$(5"5(B 0)
|
||
(?$(5"6(B 0)
|
||
(?$(5"7(B 0)
|
||
(?$(5"8(B 0)
|
||
(?$(5"9(B 0)
|
||
(?$(5":(B 0)
|
||
(?$(5";(B 0)
|
||
(?$(5"<(B 0)
|
||
(?$(5"=(B 0)
|
||
(?$(5">(B 0)
|
||
(?$(5"?(B 0)
|
||
(?$(5"@(B 0)
|
||
(?$(5"A(B 0)
|
||
(?$(5"B(B 0)
|
||
(?$(5"C(B 0)
|
||
(?$(5"D(B 0)
|
||
(?$(5"E(B 0)
|
||
(?$(5"F(B 0)
|
||
(?$(5"G(B 0)
|
||
(?$(5"H(B 0)
|
||
(?$(5"I(B 0)
|
||
(?$(5"J(B 0)
|
||
(?$(5"K(B 0)
|
||
(?$(5"L(B 0)
|
||
(?$(5"M(B 0)
|
||
(?$(5"N(B 0)
|
||
(?$(5"O(B 0)
|
||
(?$(5"P(B 0)
|
||
(?$(5"Q(B 0)
|
||
(?$(5"R(B 0)
|
||
(?$(5"S(B 0)
|
||
(?$(5"T(B 0)
|
||
(?$(5"U(B 0)
|
||
(?$(5"V(B 0)
|
||
(?$(5"W(B 0)
|
||
(?$(5"X(B 0)
|
||
(?$(5"Y(B 0)
|
||
(?$(5"Z(B 0)
|
||
(?$(5"[(B 0)
|
||
(?$(5"\(B 0)
|
||
(?$(5"](B 0)
|
||
(?$(5"^(B 0)
|
||
(?$(5"_(B 0)
|
||
(?$(5"`(B 0)
|
||
(?$(5"a(B 0)
|
||
(?$(5"b(B 0)
|
||
(?$(5"c(B 0)
|
||
(?$(5"d(B 0)
|
||
(?$(5"e(B 0)
|
||
(?$(5"f(B 0)
|
||
(?$(5"g(B 0)
|
||
(?$(5"h(B 0)
|
||
(?$(5"i(B 0)
|
||
(?$(5"j(B 0)
|
||
(?$(5"k(B 0)
|
||
(?$(5"l(B 0)
|
||
(?$(5"m(B 0)
|
||
(?$(5"n(B 0)
|
||
(?$(5"o(B 0)
|
||
(?$(5"p(B 10 (mr . mr))
|
||
(?$(5"q(B 0 (br . br))
|
||
(?$(5"r(B 0 (br . tr))
|
||
(?$(5"s(B 0)
|
||
(?$(5"t(B 0)
|
||
(?$(5"u(B 0)
|
||
(?$(5"v(B 0)
|
||
(?$(5"w(B 0)
|
||
(?$(5"x(B 0)
|
||
(?$(5"y(B 0)
|
||
(?$(5"z(B 0)
|
||
(?$(5"{(B 0)
|
||
(?$(5"|(B 0)
|
||
(?$(5"}(B 0)
|
||
(?$(5"~(B 0)
|
||
(?$(5#!(B 0)
|
||
(?$(5#"(B 0)
|
||
(?$(5##(B 0)
|
||
(?$(5#$(B 0)
|
||
(?$(5#%(B 0)
|
||
(?$(5#&(B 0)
|
||
(?$(5#'(B 0)
|
||
(?$(5#((B 0)
|
||
(?$(5#)(B 0)
|
||
(?$(5#*(B 0)
|
||
(?$(5#+(B 0)
|
||
(?$(5#,(B 0)
|
||
(?$(5#-(B 0)
|
||
(?$(5#.(B 0)
|
||
(?$(5#/(B 0)
|
||
(?$(5#0(B 0)
|
||
(?$(5#1(B 0)
|
||
(?$(5#2(B 0)
|
||
(?$(5#3(B 0)
|
||
(?$(5#4(B 0)
|
||
(?$(5#5(B 0)
|
||
(?$(5#6(B 0)
|
||
(?$(5#7(B 0)
|
||
(?$(5#8(B 0)
|
||
(?$(5#9(B 0)
|
||
(?$(5#:(B 0)
|
||
(?$(5#;(B 0)
|
||
(?$(5#<(B 0)
|
||
(?$(5#=(B 0)
|
||
(?$(5#>(B 0)
|
||
(?$(5#?(B 0)
|
||
(?$(5#@(B 0)
|
||
(?$(5#A(B 0)
|
||
(?$(5#B(B 0)
|
||
(?$(5#C(B 0)
|
||
(?$(5#D(B 0)
|
||
(?$(5#E(B 0)
|
||
(?$(5#F(B 0)
|
||
(?$(5#G(B 0)
|
||
(?$(5#H(B 0)
|
||
(?$(5#I(B 0)
|
||
(?$(5#J(B 0)
|
||
(?$(5#K(B 0 (br . tr))
|
||
(?$(5#L(B 0 (br . tr))
|
||
(?$(5#M(B 0 (br . tr))
|
||
(?$(5#N(B 0)
|
||
(?$(5#O(B 0)
|
||
(?$(5#P(B 0)
|
||
(?$(5#Q(B 0)
|
||
(?$(5#R(B 0)
|
||
(?$(5#S(B 0)
|
||
(?$(5#T(B 0)
|
||
(?$(5#U(B 0)
|
||
(?$(5#V(B 0)
|
||
(?$(5#W(B 0)
|
||
(?$(5#X(B 0)
|
||
(?$(5#Y(B 0)
|
||
(?$(5#Z(B 0)
|
||
(?$(5#[(B 0)
|
||
(?$(5#\(B 0)
|
||
(?$(5#](B 0)
|
||
(?$(5#^(B 0)
|
||
(?$(5#_(B 0)
|
||
(?$(5#`(B 0)
|
||
(?$(5#a(B 0)
|
||
(?$(5#b(B 0)
|
||
(?$(5#c(B 0)
|
||
(?$(5#d(B 0)
|
||
(?$(5#e(B 0)
|
||
(?$(5#f(B 0)
|
||
(?$(5#g(B 0)
|
||
(?$(5#h(B 0)
|
||
(?$(5#i(B 0)
|
||
(?$(5#j(B 0)
|
||
(?$(5#k(B 0)
|
||
(?$(5#l(B 0)
|
||
(?$(5#m(B 0)
|
||
(?$(5#n(B 0)
|
||
(?$(5#o(B 0)
|
||
(?$(5#p(B 0)
|
||
(?$(5#q(B 0)
|
||
(?$(5#r(B 0)
|
||
(?$(5#s(B 0)
|
||
(?$(5#t(B 0)
|
||
(?$(5#u(B 0)
|
||
(?$(5#v(B 0)
|
||
(?$(5#w(B 0)
|
||
(?$(5#x(B 0)
|
||
(?$(5#y(B 0)
|
||
(?$(5#z(B 0)
|
||
(?$(5#{(B 0)
|
||
(?$(5#|(B 0)
|
||
(?$(5#}(B 0)
|
||
(?$(5#~(B 0)
|
||
(?$(5$!(B 0)
|
||
(?$(5$"(B 0)
|
||
(?$(5$#(B 0)
|
||
(?$(5$$(B 0)
|
||
(?$(5$%(B 0)
|
||
(?$(5$&(B 0)
|
||
(?$(5$'(B 0)
|
||
(?$(5$((B 0)
|
||
(?$(5$)(B 0)
|
||
(?$(5$*(B 0)
|
||
(?$(5$+(B 0)
|
||
(?$(5$,(B 0)
|
||
(?$(5$-(B 0)
|
||
(?$(5$.(B 0)
|
||
(?$(5$/(B 0)
|
||
(?$(5$0(B 0)
|
||
(?$(5$1(B 0)
|
||
(?$(5$2(B 0)
|
||
(?$(5$3(B 0)
|
||
(?$(5$4(B 0)
|
||
(?$(5$5(B 0)
|
||
(?$(5$6(B 0)
|
||
(?$(5$7(B 0)
|
||
(?$(5$8(B 0)
|
||
(?$(5$9(B 0)
|
||
(?$(5$:(B 0)
|
||
(?$(5$;(B 0)
|
||
(?$(5$<(B 0)
|
||
(?$(5$=(B 0)
|
||
(?$(5$>(B 0)
|
||
(?$(5$?(B 0)
|
||
(?$(5$@(B 0)
|
||
(?$(5$A(B 0)
|
||
(?$(5$B(B 0)
|
||
(?$(5$C(B 0)
|
||
(?$(5$D(B 0)
|
||
(?$(5$E(B 0)
|
||
(?$(5$F(B 0)
|
||
(?$(5$G(B 0)
|
||
(?$(5$H(B 0)
|
||
(?$(5$I(B 0)
|
||
(?$(5$J(B 0)
|
||
(?$(5$K(B 0)
|
||
(?$(5$L(B 0)
|
||
(?$(5$M(B 0)
|
||
(?$(5$N(B 0)
|
||
(?$(5$O(B 0)
|
||
(?$(5$P(B 0)
|
||
(?$(5$Q(B 0)
|
||
(?$(5$R(B 0)
|
||
(?$(5$S(B 0)
|
||
(?$(5$T(B 0)
|
||
(?$(5$U(B 0)
|
||
(?$(5$V(B 0)
|
||
(?$(5$W(B 0)
|
||
(?$(5$X(B 0)
|
||
(?$(5$Y(B 0)
|
||
(?$(5$Z(B 0)
|
||
(?$(5$[(B 0)
|
||
(?$(5$\(B 0)
|
||
(?$(5$](B 0)
|
||
(?$(5$^(B 0)
|
||
(?$(5$_(B 0)
|
||
(?$(5$`(B 0)
|
||
(?$(5$a(B 0)
|
||
(?$(5$b(B 0)
|
||
(?$(5$c(B 0)
|
||
(?$(5$d(B 0)
|
||
(?$(5$e(B 0)
|
||
(?$(5$f(B 0)
|
||
(?$(5$g(B 0)
|
||
(?$(5$h(B 0)
|
||
(?$(5$i(B 0)
|
||
(?$(5$j(B 0)
|
||
(?$(5$k(B 0)
|
||
(?$(5$l(B 0)
|
||
(?$(5$m(B 0)
|
||
(?$(5$n(B 0)
|
||
(?$(5$o(B 0)
|
||
(?$(5$p(B 0)
|
||
(?$(5$q(B 0)
|
||
(?$(5$r(B 0)
|
||
(?$(5$s(B 0)
|
||
(?$(5$t(B 0)
|
||
(?$(5$u(B 0)
|
||
(?$(5$v(B 0)
|
||
(?$(5$w(B 0)
|
||
(?$(5$x(B 0)
|
||
(?$(5$y(B 0)
|
||
(?$(5$z(B 0)
|
||
(?$(5${(B 0)
|
||
(?$(5$|(B 0)
|
||
(?$(5$}(B 0)
|
||
(?$(5$~(B 0)
|
||
))
|
||
|
||
;; Determine composition priority and rule of the array of Glyphs.
|
||
;; Sort the glyphs with their priority.
|
||
|
||
(defun devanagari-reorder-glyphs-for-composition (glyph-alist)
|
||
(let* ((pos 0)
|
||
(ordered-glyphs '()))
|
||
(while (< pos (length glyph-alist))
|
||
(let* ((glyph (aref glyph-alist pos)))
|
||
(setq pos (1+ pos))
|
||
(setq ordered-glyphs
|
||
(append ordered-glyphs (list (assq glyph devanagari-composition-rules))))))
|
||
(sort ordered-glyphs '(lambda (x y) (< (car (cdr x)) (car (cdr y)))))))
|
||
|
||
;;(devanagari-compose-to-one-glyph "$(5"5!X![(B") => "2$(6!XP"5@![(B1"
|
||
|
||
(defun devanagari-compose-to-one-glyph (devanagari-string)
|
||
(let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition
|
||
(string-to-vector devanagari-string)))
|
||
;; List of glyphs to be composed.
|
||
(cmp-glyph-list (list (car (car o-glyph-list))))
|
||
(o-glyph-list (cdr o-glyph-list)))
|
||
(while o-glyph-list
|
||
(let* ((o-glyph (car o-glyph-list))
|
||
(glyph (if (< 2 (length o-glyph))
|
||
;; default composition
|
||
(list (car (cdr (cdr o-glyph))) (car o-glyph))
|
||
;; composition with a specified rule
|
||
(list '(mr . ml) (car o-glyph)))))
|
||
(setq o-glyph-list (cdr o-glyph-list))
|
||
(setq cmp-glyph-list (append cmp-glyph-list glyph))))
|
||
;; Before applying compose-chars, convert glyphs to
|
||
;; 1-column width if possible.
|
||
(setq cmp-glyph-list (devanagari-wide-to-narrow cmp-glyph-list))
|
||
(if (= (length cmp-glyph-list) 1) (char-to-string (car cmp-glyph-list))
|
||
(apply 'compose-chars cmp-glyph-list))))
|
||
|
||
;; Utility function for Phase 2.5
|
||
;; Check whether given glyph is a Devanagari vertical modifier or not.
|
||
;; If it is a vertical modifier, whether it should be 1-column shape or not
|
||
;; depends on previous non-vertical modifier.
|
||
; return nil if it is not vertical modifier.
|
||
(defun devanagari-vertical-modifier-p (glyph)
|
||
(string-match (char-to-string glyph)
|
||
"[$(5!"!]!^!_!`!a!b!c!h!i"p"q"r#K#L#M(B]"))
|
||
|
||
(defun devanagari-non-vertical-modifier-p (glyph)
|
||
(string-match (char-to-string glyph)
|
||
; "[$(5!Z![!\!d!e!f!g(B]"))
|
||
"[$(5![(B]"))
|
||
|
||
(defun devanagari-wide-to-narrow-char (char)
|
||
"Return the corresponding narrow character if it exists."
|
||
(let ((narrow (cdr (assq char devanagari-1-column-char))))
|
||
(if narrow narrow char)))
|
||
|
||
;;
|
||
;; Phase 2.5 Convert Appropriate Character to 1-column shape.
|
||
;;
|
||
;; This is temporary and should be removed out when Emacs supports
|
||
;; variable width characters.
|
||
;;
|
||
;; This will convert the composing glyphs (2 column glyphs)
|
||
;; to narrow (1 column) glyphs if they exist.
|
||
;;
|
||
;; devanagari-wide-to-narrow-old converts glyphs simply.
|
||
;; devanagari-wide-to-narrow takes care of upper/lower apply-glyphs
|
||
;; with 2 column base-glyph.
|
||
;;
|
||
;; Execution Examples
|
||
;;(devanagari-wide-to-narrow '(?$(5!3(B (ml . ml) ?$(5!a(B))
|
||
;;(devanagari-wide-to-narrow '(?$(5!F(B (ml . ml) ?$(5!a(B))
|
||
|
||
(defun devanagari-wide-to-narrow (src-list)
|
||
(devanagari-wide-to-narrow-iter src-list t))
|
||
|
||
(defun devanagari-wide-to-narrow-iter (src-list 2-col-glyph)
|
||
(let ((glyph (car src-list)))
|
||
(cond ((null src-list) '())
|
||
; not glyph code
|
||
((not (numberp glyph))
|
||
(cons glyph (devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
|
||
; glyphs to be processed regardless of the value of "2-col-glyph"
|
||
((devanagari-non-vertical-modifier-p glyph)
|
||
(cons (devanagari-wide-to-narrow-char glyph)
|
||
(devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph)))
|
||
; glyphs which are depends on the value of "2-col-glyph"
|
||
((devanagari-vertical-modifier-p glyph)
|
||
(if 2-col-glyph
|
||
(cons glyph
|
||
(devanagari-wide-to-narrow-iter (cdr src-list) t))
|
||
(cons (devanagari-wide-to-narrow-char glyph)
|
||
(devanagari-wide-to-narrow-iter (cdr src-list) 2-col-glyph))))
|
||
; normal glyph
|
||
(t
|
||
(if (cdr (assq glyph devanagari-1-column-char))
|
||
(cons (devanagari-wide-to-narrow-char glyph)
|
||
(devanagari-wide-to-narrow-iter (cdr src-list) nil))
|
||
(cons glyph
|
||
(devanagari-wide-to-narrow-iter (cdr src-list) t)))))))
|
||
|
||
|
||
;;
|
||
;; Summary
|
||
;;
|
||
|
||
;;
|
||
;; Decomposition of composite font.
|
||
;;
|
||
|
||
(defun devanagari-normalize-narrow-glyph (charlist)
|
||
(let ((wide-char (car (rassoc (car charlist) devanagari-1-column-char))))
|
||
(if (null charlist) nil
|
||
(cons (if (null wide-char) (car charlist) wide-char)
|
||
(devanagari-normalize-narrow-glyph (cdr charlist))))))
|
||
|
||
(defvar devanagari-decomposition-rules
|
||
'(
|
||
(?$(5"p(B -10)
|
||
)
|
||
)
|
||
|
||
(defun devanagari-reorder-glyphs-for-decomposition (glyphlist)
|
||
"This function re-orders glyph list for decomposition."
|
||
(sort glyphlist
|
||
'(lambda (x y)
|
||
(let ((xx (assoc x devanagari-decomposition-rules))
|
||
(yy (assoc y devanagari-decomposition-rules)))
|
||
(if (null xx) (setq xx 0))
|
||
(if (null yy) (setq yy 0))
|
||
(< xx yy)))))
|
||
|
||
(defun devanagari-decompose-char (glyph)
|
||
"This function decomposes one Devanagari composite glyph to
|
||
basic Devanagari characters as a string."
|
||
(let ((glyphlist
|
||
(if (eq (car (split-char glyph)) 'composition)
|
||
(string-to-list (decompose-composite-char glyph))
|
||
(list glyph))))
|
||
(setq glyphlist (devanagari-normalize-narrow-glyph glyphlist))
|
||
(setq glyphlist (devanagari-reorder-glyphs-for-decomposition glyphlist))
|
||
(string-conversion-by-rule
|
||
(mapconcat 'char-to-string glyphlist "") 'glyph-to-char)))
|
||
|
||
;;;###autoload
|
||
(defun devanagari-decompose-string (str)
|
||
"Decompose Devanagari glyph string STR to basic Devanagari character string."
|
||
(let ((len (length str))
|
||
(i 0)
|
||
(dst ""))
|
||
(while (< i len)
|
||
(setq dst (concat dst (devanagari-decompose-char (aref str i)))
|
||
i (1+ i)))
|
||
dst))
|
||
|
||
;;;###autoload
|
||
(defun devanagari-decompose-region (from to)
|
||
(interactive "r")
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "." nil t)
|
||
(let* ((match-b (match-beginning 0)) (match-e (match-end 0))
|
||
(decmps (devanagari-decompose-string (buffer-substring match-b match-e))))
|
||
(delete-char -1)
|
||
(insert decmps)))))
|
||
|
||
;;;
|
||
;;; Composition
|
||
;;;
|
||
|
||
;;;###autoload
|
||
(defun devanagari-compose-string (str &rest langs)
|
||
(let ((len (length str))
|
||
(src (devanagari-decompose-string str)) (dst "") rest match-b match-e)
|
||
(while (string-match devanagari-composite-glyph-unit src)
|
||
(setq match-b (match-beginning 0) match-e (match-end 0))
|
||
(setq dst
|
||
(concat dst
|
||
(substring src 0 match-b)
|
||
(devanagari-compose-to-one-glyph
|
||
(apply
|
||
'char-to-glyph-devanagari
|
||
(cons (substring src match-b match-e)
|
||
langs)))))
|
||
(setq src (substring src match-e)))
|
||
(setq dst (concat dst src))
|
||
dst))
|
||
|
||
;;;###autoload
|
||
(defun devanagari-compose-region (from to &rest langs)
|
||
(interactive "r")
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(goto-char (point-min))
|
||
(while (re-search-forward devanagari-composite-glyph-unit nil t)
|
||
(let* ((match-b (match-beginning 0)) (match-e (match-end 0))
|
||
(cmps (devanagari-compose-to-one-glyph
|
||
(apply
|
||
'char-to-glyph-devanagari
|
||
(cons (buffer-substring match-b match-e)
|
||
langs)))))
|
||
(delete-region match-b match-e)
|
||
(insert cmps)))))
|
||
|
||
;; For pre-write and post-read conversion
|
||
|
||
;;;###autoload
|
||
(defun devanagari-compose-from-is13194-region (from to)
|
||
"Compose IS 13194 characters in the region to Devanagari characters."
|
||
(interactive "r")
|
||
(save-excursion
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(indian-to-devanagari-region (point-min) (point-max))
|
||
(devanagari-compose-region (point-min) (point-max))
|
||
(- (point-max) (point-min)))))
|
||
|
||
;;;###autoload
|
||
(defun in-is13194-devanagari-post-read-conversion (len)
|
||
(let ((pos (point))
|
||
(buffer-modified-p (buffer-modified-p)))
|
||
(prog1
|
||
(devanagari-compose-from-is13194-region pos (+ pos len))
|
||
(set-buffer-modified-p buffer-modified-p))))
|
||
|
||
;;;###autoload
|
||
(defun devanagari-decompose-to-is13194-region (from to)
|
||
"Decompose Devanagari characters in the region to IS 13194 characters."
|
||
(interactive "r")
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(devanagari-decompose-region (point-min) (point-max))
|
||
(devanagari-to-indian-region (point-min) (point-max))))
|
||
|
||
;;;###autoload
|
||
(defun in-is13194-devanagari-pre-write-conversion (from to)
|
||
(let ((old-buf (current-buffer))
|
||
(work-buf (get-buffer-create " *devanagari-work*")))
|
||
(set-buffer work-buf)
|
||
(erase-buffer)
|
||
(if (stringp from)
|
||
(insert from)
|
||
(insert-buffer-substring old-buf from to))
|
||
(devanagari-decompose-to-is13194-region (point-min) (point-max))
|
||
;; Should return nil as annotations.
|
||
nil))
|
||
|
||
;; For input/output of ITRANS
|
||
|
||
;;;###autoload
|
||
(defun devanagari-encode-itrans-region (from to)
|
||
(interactive "r")
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(devanagari-decompose-to-is13194-region (point-min) (point-max))
|
||
(indian-encode-itrans-region (point-min) (point-max))))
|
||
|
||
;;;###autoload
|
||
(defun devanagari-decode-itrans-region (from to)
|
||
(interactive "r")
|
||
(save-restriction
|
||
(narrow-to-region from to)
|
||
(indian-decode-itrans-region (point-min) (point-max))
|
||
(devanagari-compose-from-is13194-region (point-min) (point-max))))
|
||
|
||
;; Test comment.
|
||
|
||
;;
|
||
(provide 'devan-util)
|
||
|
||
;;; devan-util.el end here
|