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[Emacs-diffs] Changes to devan-util.el
|
From: |
Kenichi Handa |
|
Subject: |
[Emacs-diffs] Changes to devan-util.el |
|
Date: |
Thu, 21 Feb 2008 07:38:40 +0000 |
CVSROOT: /cvsroot/emacs
Module name: emacs
Changes by: Kenichi Handa <handa> 08/02/21 07:38:40
Index: devan-util.el
===================================================================
RCS file: devan-util.el
diff -N devan-util.el
--- devan-util.el 1 Feb 2008 16:01:02 -0000 1.53
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,664 +0,0 @@
-;;; devan-util.el --- Support for composing Devanagari characters -*-coding:
iso-2022-7bit;-*-
-
-;; Copyright (C) 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
-;; Free Software Foundation, Inc.
-;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-;; 2007, 2008
-;; National Institute of Advanced Industrial Science and Technology (AIST)
-;; Registration Number H14PRO021
-
-;; Maintainer: KAWABATA, Taichi <address@hidden>
-;; Keywords: multilingual, Devanagari
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;; Created: Feb. 17. 2001
-
-;;; Commentary:
-
-;; This file provides character(Unicode) to glyph(CDAC) conversion and
-;; composition of Devanagari script characters.
-
-;;; Code:
-
-;; Devanagari Composable Pattern
-;; C .. Consonants
-;; V .. Vowel
-;; H .. Halant
-;; M .. Matra
-;; V .. Vowel
-;; A .. Anuswar
-;; D .. Chandrabindu
-;; (N .. Zerowidth Non Joiner)
-;; (J .. Zerowidth Joiner. )
-;; 1. vowel
-;; V(A/D)?
-;; 2. syllable : maximum of 5 consecutive consonants. (e.g. kartsnya)
-;; ((CH)?(CH)?(CH)?CH)?C(H|M?(A|D)?)?
-
-(defconst devanagari-consonant
- "[$,15U(B-$,15y68(B-$,16?(B]")
-
- ;;("$,16B(B" . nil)
- ;;("$,16A(B" . nil)
- ;;("$,16C(B" . nil)
-
-
-(defconst devanagari-composable-pattern
- (concat
- "\\([$,15E(B-$,address@hidden(B][$,15A5B(B]?\\)\\|[$,15C6D(B]"
- "\\|\\("
-
"\\(?:\\(?:[$,15U(B-$,15y68(B-$,16?(B]$,16-(B\\)?\\(?:[$,15U(B-$,15y68(B-$,16?(B]$,16-(B\\)?\\(?:[$,15U(B-$,15y68(B-$,16?(B]$,16-(B\\)?[$,15U(B-$,15y68(B-$,16?(B]$,16-(B\\)?"
-
"[$,15U(B-$,15y68(B-$,16?(B]\\(?:$,16-(B\\|[$,15~(B-$,16-6B6C(B]?[$,15B5A(B]?\\)?"
- "\\)")
- "Regexp matching a composable sequence of Devanagari characters.")
-
-(dolist (range '((#x0903 . #x0903)
- (#x0905 . #x0939)
- (#x0958 . #x0961)))
- (set-char-table-range indian-composable-pattern range
- devanagari-composable-pattern))
-
-;;;###autoload
-(defun devanagari-compose-region (from to)
- (interactive "r")
- (save-excursion
- (save-restriction
- (narrow-to-region from to)
- (goto-char (point-min))
- (while (re-search-forward devanagari-composable-pattern nil t)
- (devanagari-compose-syllable-region (match-beginning 0)
- (match-end 0))))))
-(defun devanagari-compose-string (string)
- (with-temp-buffer
- (insert (decompose-string string))
- (devanagari-compose-region (point-min) (point-max))
- (buffer-string)))
-
-;;;###autoload
-(defun devanagari-post-read-conversion (len)
- (save-excursion
- (save-restriction
- (let ((buffer-modified-p (buffer-modified-p)))
- (narrow-to-region (point) (+ (point) len))
- (devanagari-compose-region (point-min) (point-max))
- (set-buffer-modified-p buffer-modified-p)
- (- (point-max) (point-min))))))
-
-(defun devanagari-regexp-of-hashtbl-keys (hashtbl)
- "Return a regular expression that matches all keys in hashtable HASHTBL."
- (let ((max-specpdl-size 1000))
- (regexp-opt
- (sort
- (let (dummy)
- (maphash (function (lambda (key val) (setq dummy (cons key dummy))))
hashtbl)
- dummy)
- (function (lambda (x y) (> (length x) (length y))))))))
-
-;;;###autoload
-(defun devanagari-composition-function (pos &optional string)
- "Compose Devanagari characters after the position POS.
-If STRING is not nil, it is a string, and POS is an index to the string.
-In this case, compose characters after POS of the string."
- (if string
- (if auto-compose-current-font
- (if (eq (string-match "[$,address@hidden(B-$,16_(B]+" pos) pos)
- (or (font-shape-text 0 (match-end 0) auto-compose-current-font
- string)
- pos)))
- (goto-char pos)
- (if auto-compose-current-font
- (if (looking-at "[$,address@hidden(B-$,16_(B]+")
- (or (font-shape-text pos (match-end 0) auto-compose-current-font)
- pos)
- (if (looking-at devanagari-composable-pattern)
- (prog1 (match-end 0)
- (devanagari-compose-syllable-region pos (match-end 0))))))))
-
-;; Notes on conversion steps.
-
-;; 1. chars to glyphs
-;;
-;; Rules will not be applied to the halant appeared at the end of the
-;; text. Also, the preceding/following "r" will be treated as special case.
-
-;; 2. glyphs reordering.
-;;
-;; The glyphs are split by halant, and each glyph groups are
-;; re-ordered in the following order.
-;;
-;; Note that `consonant-glyph' mentioned here does not contain the
-;; vertical bar (right modifier) attached at the right of the
-;; consonant.
-;;
-;; If the glyph-group contains right modifier,
-;; (1) consonant-glyphs/vowels, with nukta sign
-;; (2) spacing
-;; (3) right modifier (may be matra)
-;; (4) top matra
-;; (5) preceding "r"
-;; (6) anuswar
-;; (7) following "r"
-;; (8) bottom matra or halant.
-;;
-;; Otherwise,
-;; (1) consonant-glyph/vowels, with nukta sign
-;; (3) left matra
-;; (4) top matra
-;; (5) preceding "r"
-;; (6) anuswar
-;; (7) following "r"
-;; (8) bottom matra or halant.
-;; (2) spacing
-
-;; 3. glyph to glyph
-;;
-;; For better display, some glyph display would be tuned.
-
-;; 4. Composition.
-;;
-;; left modifiers will be attached at the left.
-;; others will be attached right.
-
-;; Problem::
-;; Can we generalize this methods to other Indian scripts?
-
-(defvar dev-char-glyph
- '(("$,15E(B" . "$,4 K(B")
- ("$,15F(B" . "$,4 K")(B")
- ("$,15~(B" . "$,4")(B")
- ("$,15G(B" . "$,4 \(B")
- ("$,15(B" . "$,4"*(B")
- ("$,155A(B" . "$,4"*(B\$,4"&(B")
- ("$,15H(B" . "$,4 \"'(B")
- ("$,15H5A(B" . "$,4 \"'"&(B")
- ("$,16 (B" . "$,4"2(B")
- ("$,16 5A(B" . "$,4"2"&(B")
- ("$,15I(B" . "$,4 ](B")
- ("$,16!(B" . "$,4"6(B")
- ("$,15J(B" . "$,4 ^"P(B")
- ("$,16"(B" . "$,4":(B")
- ("$,15K(B" . "$,4 `"Q(B")
- ("$,16#(B" . "$,4">(B")
- ;;("$,15L(B" . nil) ; not implemented.
- ("$,16$(B" . "$,4"?(B")
- ("$,15M(B" . "$,4 b"L(B")
- ("$,15M5A(B" . "$,4 b"$(B")
- ("$,15M5B(B" . "$,4 b"$(B")
- ("$,16%(B" . "\$,4"L(B")
- ("$,15N(B" . "$,4 b"@(B")
- ("$,15N5A(B" . "$,4 b"@"&(B")
- ("$,16&(B" . "\$,4"@(B")
- ("$,16&5A(B" . "\$,4"@(B\$,4"&(B")
- ("$,15O(B" . "$,4 b(B")
- ("$,16'(B" . "\$,4"D(B")
- ("$,16'5A(B" . "\$,4"D(B\$,4"&(B")
- ("$,15P(B" . "$,4 b"D(B")
- ("$,15P5A(B" . "$,4 b"D"&(B")
- ("$,16((B" . "\$,4"H(B")
- ("$,16(5A(B" . "\$,4"H(B\$,4"&(B")
- ("$,15Q(B" . "$,4 K")"L(B") ;; special rule for reodering.
- ("$,15Q5A(B" . "$,4 K")"$(B")
- ("$,15Q5B(B" . "$,4 K")"$(B")
- ("$,16)(B" . "\$,4")"L(B")
- ("$,16)5A(B" . "\$,4")"$(B")
- ("$,16)5B(B" . "\$,4")"$(B")
- ("$,15R(B" . "$,4 K")"@(B")
- ("$,15R5A(B" . "$,4 K")"@"&(B")
- ("$,16*(B" . "\$,4")"@(B")
- ("$,16*5A(B" . "\$,4")"@"&(B")
- ("$,15S(B" . "$,4 K")"D(B")
- ("$,15S5A(B" . "$,4 K")"D"&(B")
- ("$,16+(B" . "\$,4")"D(B")
- ("$,16+5A(B" . "\$,4")"D"&(B")
- ("$,15T(B" . "$,4 K")"H(B")
- ("$,15T5A(B" . "$,4 K")"H"&(B")
- ("$,16,(B" . "\$,4")"H(B")
- ("$,16,5A(B" . "\$,4")"H"&(B")
- ("$,address@hidden(B" . "$,4 a"Q(B")
- ;;("$,16B(B" . nil)
- ;;("$,16A(B" . nil)
- ;;("$,16C(B" . nil)
-
- ;; GRUTTALS
- ("$,15U(B" . "$,4 e"R(B")
- ("$,15U6-(B" . "$,4 c(B")
- ("$,15U6-5p(B" . "$,4 g"R(B")
- ("$,15U6-5d(B" . "$,4 h"R(B")
- ("$,15U6-5w(B" . "$,4 i")(B")
- ("$,15U6-5w6-(B" . "$,4 i(B")
-
- ("$,15V(B" . "$,4 j")(B")
- ("$,15V6-(B" . "$,4 j(B")
- ("$,15V6-5p(B" . "$,4 l")(B")
- ("$,15V6-5p6-(B" . "$,4 l(B")
-
- ("$,15W(B" . "$,4 m")(B")
- ("$,15W6-(B" . "$,4 m(B")
- ("$,15W6-5p(B" . "$,4 o")(B")
- ("$,15W6-5p6-(B" . "$,4 o(B")
-
- ("$,15X(B" . "$,4 p")(B")
- ("$,15X6-(B" . "$,4 p(B")
- ("$,15X6-5p(B" . "$,4 q")(B")
- ("$,15X6-5p6-(B" . "$,4 q(B")
-
- ("$,15Y(B" . "$,4 r"S(B")
- ;; PALATALS
- ("$,15Z(B" . "$,4 s")(B")
- ("$,15Z6-(B" . "$,4 s(B")
- ("$,15Z6-5p(B" . "$,4 t")(B")
- ("$,15Z6-5p6-(B" . "$,4 t(B")
-
- ("$,15[(B" . "$,4 u"T(B")
-
- ("$,15\(B" . "$,4 v")(B")
- ("$,15\6-(B" . "$,4 v(B")
- ("$,15\6-5p(B" . "$,4 x")(B")
- ("$,15\6-5p6-(B" . "$,4 x(B")
- ("$,15\6-5^(B" . "$,4 y")(B")
- ("$,15\6-5^6-(B" . "$,4 y(B")
-
- ("$,15](B" . "$,4 z")(B")
- ("$,15]6-(B" . "$,4 z(B")
- ("$,15]6-5p(B" . "$,4 {")(B")
- ("$,15]6-5p6-(B" . "$,4 {(B")
-
- ("$,15^(B" . "$,4 |")(B")
- ("$,15^6-(B" . "$,4 |(B")
- ;; CEREBRALS
- ("$,15_(B" . "$,4 }"U(B")
- ("$,15_6-5_(B" . "$,4 ~"U(B")
- ("$,15_6-5`(B" . "$,4 "U(B")
-
- ("$,15`(B" . "$,4! "V(B")
- ("$,15`6-5`(B" . "$,4!!"V(B")
-
- ("$,15a(B" . "$,4!""W(B")
- ("$,15a6-5a(B" . "$,4!$"W(B")
- ("$,15a6-5b(B" . "$,4!%"W(B")
-
- ("$,15b(B" . "$,4!&"X(B")
-
- ("$,15c(B" . "$,4!(")(B")
- ("$,15c6-(B" . "$,4!((B")
- ;; DENTALS
- ("$,15d(B" . "$,4!)")(B")
- ("$,15d6-(B" . "$,4!)(B")
- ("$,15d6-5p(B" . "$,4!*")(B")
- ("$,15d6-5p6-(B" . "$,4!*(B")
- ("$,15d6-5d(B" . "$,4!+")(B")
- ("$,15d6-5d6-(B" . "$,4!+(B")
-
- ("$,15e(B" . "$,4!,")(B")
- ("$,15e6-(B" . "$,4!,(B")
- ("$,15e6-5p(B" . "$,4!-")(B")
- ("$,15e6-5p6-(B" . "$,4!-(B")
-
- ("$,15f(B" . "$,4!."Y(B")
- ("$,15f6#(B" . "$,4!/"Y(B")
- ("$,15f6-5p(B" . "$,4!0"Y(B")
- ("$,15f6-5f(B" . "$,4!1"Y(B")
- ("$,15f6-5g(B" . "$,4!2"Y(B")
- ("$,15f6-5n(B" . "$,4!3(B")
- ("$,15f6-5o(B" . "$,4!4(B")
- ("$,15f6-5u(B" . "$,4!5"Y(B")
-
- ("$,15g(B" . "$,4!6")(B")
- ("$,15g6-(B" . "$,4!6(B")
- ("$,15g6-5p(B" . "$,4!7")(B")
- ("$,15g6-5p6-(B" . "$,4!7(B")
-
- ("$,15h(B" . "$,4!8")(B")
- ("$,15h6-(B" . "$,4!8(B")
- ("$,15h6-5p(B" . "$,4!9")(B")
- ("$,15h6-5p6-(B" . "$,4!9")(B")
- ("$,15h6-5h(B" . "$,4!:")(B")
- ("$,15h6-5h6-(B" . "$,4!:(B")
-
- ("$,15i(B" . "$,4!8"#")(B")
- ;; LABIALS
- ("$,15j(B" . "$,4!;")(B")
- ("$,15j6-(B" . "$,4!;(B")
- ("$,15j6-5p(B" . "$,4!<")(B")
- ("$,15j6-5p6-(B" . "$,4!<(B")
-
- ("$,15k(B" . "$,4!a"[(B")
- ("$,15k6-(B" . "$,4!=(B")
- ("$,15k6-5p(B" . "$,4!c"[(B")
-
- ("$,15l(B" . "$,4!d")(B")
- ("$,15l6-(B" . "$,4!d(B")
- ("$,15l6-5p(B" . "$,4!e")(B")
- ("$,15l6-5p6-(B" . "$,4!e(B")
-
- ("$,15m(B" . "$,4!f")(B")
- ("$,15m6-(B" . "$,4!f(B")
- ("$,15m6-5p(B" . "$,4!g")(B")
- ("$,15m6-5p6-(B" . "$,4!g(B")
-
- ("$,15n(B" . "$,4!h")(B")
- ("$,15n6-(B" . "$,4!h(B")
- ("$,15n6-5p(B" . "$,4!i")(B")
- ("$,15n6-5p6-(B" . "$,4!i(B")
- ;; SEMIVOWELS
- ("$,15o(B" . "$,4!j")(B")
- ("$,15o6-(B" . "$,4!j(B")
- ("$,15o6-5p(B" . "$,4!k")(B")
- ("$,15o6-5p6-(B" . "$,4!k(B")
- ("$,16-5o(B" . "$,4!l(B") ;; when every ohter lig. fails.
-
- ("$,15p(B" . "$,4!n"W(B")
- ;; ("$,15p6-(B" . "\$,4"'(B") ;; special case. only the topmost pos.
- ("$,15q(B" . "$,4!n"#"W(B")
- ("$,15q6-(B" . "$,4!m(B") ;; IS 13194 speical rule.
- ("$,15p6!(B" . "$,4!o"[(B")
- ("$,15p6"(B" . "$,4!p"\(B")
-
- ("$,15r(B" . "$,4!q")(B")
- ("$,15r6-(B" . "$,4!q(B")
- ("$,15s(B" . "$,4!s(B")
- ("$,15s6-(B" . "$,4!r(B")
- ("$,15t(B" . "$,4!s"#(B")
- ("$,15t6-(B" . "$,4!r"#(B")
-
- ("$,15u(B" . "$,4!t")(B")
- ("$,15u6-(B" . "$,4!t(B")
- ("$,15u6-5p(B" . "$,4!u")(B")
- ("$,15u6-5p6-(B" . "$,4!u(B")
- ;; SIBILANTS
- ("$,15v(B" . "$,4!v")(B")
- ("$,15v6-(B" . "$,4!v(B")
- ("$,15v6-5u(B" . "$,4!w")(B")
- ("$,15v6-5u6-(B" . "$,4!w(B")
- ("$,15v6-5p(B" . "$,4!x")(B")
- ("$,15v6-5p6-(B" . "$,4!x(B")
-
- ("$,15w(B" . "$,4!y")(B")
- ("$,15w6-(B" . "$,4!y(B")
- ("$,15x(B" . "$,4!z")(B")
- ("$,15x6-(B" . "$,4!z(B")
- ("$,15x6-5p(B" . "$,4!{")(B")
- ("$,15x6-5p6-(B" . "$,4!{(B")
-
- ("$,15y(B" . "$,4!}(B")
- ("$,15y6-(B" . "$,4!|(B")
- ("$,15y6#(B" . "$,4!~(B")
- ("$,15y6-5p(B" . "$,4!(B")
- ("$,15y6-5n(B" . "$,4" (B")
- ("$,15y6-5o(B" . "$,4"!(B")
- ;; NUKTAS
- ("$,168(B" . "$,4 f"R"S(B")
- ("$,1686-(B" . "$,4 d(B")
- ("$,169(B" . "$,4 k")(B")
- ("$,1696-(B" . "$,4 k(B")
- ("$,16:(B" . "$,4 n")(B")
- ("$,16:6-(B" . "$,4 n(B")
- ("$,16;(B" . "$,4 w")(B")
- ("$,16;6-(B" . "$,4 w(B")
- ("$,16<(B" . "$,4!#"W(B")
- ("$,16=(B" . "$,4!'"X(B")
- ("$,16>(B" . "$,4!b"[(B")
- ("$,16>6-(B" . "$,4!>(B")
- ("$,16?(B" . "$,4!j"#")(B")
- ;; misc modifiers.
- ("$,15A(B" . "\$,4"$(B")
- ("$,15B(B" . "\$,4"&(B")
- ("$,15C(B" . "$,4 F(B")
- ("$,15|(B" . "$,4"#(B")
- ("$,15}(B" . "$,4 E(B")
- ("$,16-(B" . "$,4""(B")
- ("$,16-5p(B" . "$,4"%(B") ;; following "r"
- ;; ("$,160(B" . "$,4 D(B")
- ("$,16D(B" . "$,4 J(B")
- ;; ("$,16F(B" . "")
- ;; ("$,16G(B" . "")
- ;; ("$,16H(B" . "")
- ;; ("$,16I(B" . "")
- ;; ("$,16J(B" . "")
- ;; ("$,16K(B" . "")
- ;; ("$,16L(B" . "")
- ;; ("$,16M(B" . "")
- ;; ("$,16N(B" . "")
- ;; ("$,16O(B" . "")
- )
- "Devanagari characters to glyphs conversion table.
-Default value contains only the basic rules. You may add your own
-preferred rule from the sanskrit fonts." )
-
-(defvar dev-char-glyph-hash
- (let* ((hash (make-hash-table :test 'equal)))
- (mapc (function (lambda (x) (puthash (car x) (cdr x) hash)))
- dev-char-glyph)
- hash))
-
-(defvar dev-char-glyph-regexp
- (devanagari-regexp-of-hashtbl-keys dev-char-glyph-hash))
-
-;; glyph-to-glyph conversion table.
-;; it is supposed that glyphs are ordered in
-;; [consonant/nukta] - [matra/halant] - [preceding-r] - [anuswar].
-
-(defvar dev-glyph-glyph
- '(("\$,4"'(B\$,4"&(B" . "\$,4"((B")
- ("\$,4"'(B\$,4"$(B" . "\$,4"((B")
- ("$,4"*(B\$,4"&(B" . "$,4"+(B")
- ("$,4"*(B\$,4"'(B" . "$,4",(B")
- ("$,4"*(B\$,4"'(B\$,4"&(B" . "$,4"-(B")
- ("$,4"2(B\$,4"&(B" . "$,4"3(B")
- ("$,4"2(B\$,4"'(B" . "$,4"4(B")
- ("$,4"2(B\$,4"'(B\$,4"&(B" . "$,4"5(B")
- ("$,4"#(B\$,4"6(B" . "$,4"7(B")
- ("$,4"%(B\$,4"6(B" . "$,4"8(B")
- ;;("$,4"6(B" . "$,4"9(B")
- ("$,4"#(B\$,4":(B" . "$,4";(B")
- ("$,4"%(B\$,4":(B" . "$,4"<(B")
- ;;("$,4":(B" . "$,4"=(B")
- ("\$,4"@(B\$,4"&(B" . "\$,4"A(B")
- ("\$,4"@(B\$,4"'(B" . "\$,4"B(B")
- ("\$,4"@(B\$,4"'(B\$,4"&(B" . "\$,4"C(B")
- ("\$,4"D(B\$,4"&(B" . "\$,4"E(B")
- ("\$,4"D(B\$,4"'(B" . "\$,4"F(B")
- ("\$,4"D(B\$,4"'(B\$,4"&(B" . "\$,4"G(B")
- ("\$,4"H(B\$,4"&(B" . "\$,4"I(B")
- ("\$,4"H(B\$,4"'(B" . "\$,4"J(B")
- ("\$,4"H(B\$,4"'(B\$,4"&(B" . "\$,4"K(B")
- ("\$,4"L(B\$,4"&(B" . "\$,4"M(B")
- ("\$,4"L(B\$,4"'(B" . "\$,4"N(B")
- ("\$,4"L(B\$,4"'(B\$,4"&(B" . "\$,4"O(B")
- ))
-(defvar dev-glyph-glyph-hash
- (let* ((hash (make-hash-table :test 'equal)))
- (mapc (function (lambda (x) (puthash (car x) (cdr x) hash)))
- dev-glyph-glyph)
- hash))
-(defvar dev-glyph-glyph-regexp
- (devanagari-regexp-of-hashtbl-keys dev-glyph-glyph-hash))
-
-
-;; yet another glyph-to-glyph conversions.
-(defvar dev-glyph-glyph-2
- '(("$,4"*(B" . "$,4".(B")
- ("$,4"+(B" . "$,4"/(B")
- ("$,4",(B" . "$,4"0(B")
- ("$,4"-(B" . "$,4"1(B")))
-(defvar dev-glyph-glyph-2-hash
- (let* ((hash (make-hash-table :test 'equal)))
- (mapc (function (lambda (x) (puthash (car x) (cdr x) hash)))
- dev-glyph-glyph-2)
- hash))
-(defvar dev-glyph-glyph-2-regexp
- (devanagari-regexp-of-hashtbl-keys dev-glyph-glyph-2-hash))
-
-(defun dev-charseq (from &optional to)
- (if (null to) (setq to from))
- (number-sequence (decode-char 'devanagari-cdac from)
- (decode-char 'devanagari-cdac to)))
-
-(defvar dev-glyph-cvn
- (append
- (dev-charseq #x2b)
- (dev-charseq #x3c #xc1)
- (dev-charseq #xc3))
- "Devanagari Consonants/Vowels/Nukta Glyphs")
-
-(defvar dev-glyph-space
- (dev-charseq #xf0 #xfe)
- "Devanagari Spacing Glyphs")
-
-(defvar dev-glyph-right-modifier
- (append
- (dev-charseq #xc9)
- (dev-charseq #xd2 #xd5))
- "Devanagari Modifiers attached at the right side.")
-
-(defvar dev-glyph-right-modifier-regexp
- (concat "[" dev-glyph-right-modifier "]"))
-
-(defvar dev-glyph-left-matra
- (dev-charseq #xca #xd1)
- "Devanagari Matras attached at the left side.")
-
-(defvar dev-glyph-top-matra
- (dev-charseq #xe0 #xef)
- "Devanagari Matras attached at the top side.")
-
-(defvar dev-glyph-bottom-modifier
- (append
- (dev-charseq #xd6 #xdf)
- (dev-charseq #xc2))
- "Devanagari Modifiers attached at the bottom.")
-
-(defvar dev-glyph-order
- `((,dev-glyph-cvn . 1)
- (,dev-glyph-space . 2)
- (,dev-glyph-right-modifier . 3)
- (,dev-glyph-left-matra . 3) ;; processed by reference point.
- (,dev-glyph-top-matra . 4)
- (,(dev-charseq #xc7 #xc8) . 5)
- (,(dev-charseq #xc4) . 6)
- (,(dev-charseq #xc6) . 6)
- (,(dev-charseq #xc5) . 7)
- (,dev-glyph-bottom-modifier . 8)))
-
-(mapc
- (function (lambda (x)
- (mapc
- (function (lambda (y)
- (put-char-code-property y 'composition-order (cdr x))))
- (car x))))
- dev-glyph-order)
-
-(mapc
- (function (lambda (x)
- (put-char-code-property x 'reference-point '(3 . 5))))
- dev-glyph-left-matra)
-
-(defun devanagari-compose-syllable-string (string)
- (with-temp-buffer
- (insert (decompose-string string))
- (devanagari-compose-syllable-region (point-min) (point-max))
- (buffer-string)))
-
-(defun devanagari-compose-syllable-region (from to)
- "Compose devanagari syllable in region FROM to TO."
- (let ((glyph-str nil) (cons-num 0) glyph-str-list
- (last-halant nil) (preceding-r nil) (last-modifier nil)
- (last-char (char-before to)) match-str
- glyph-block split-pos)
- (save-excursion
- (save-restriction
- ;;; *** char-to-glyph conversion ***
- ;; Special rule 1. -- Last halant must be preserved.
- (if (eq last-char ?$,16-(B)
- (progn
- (setq last-halant t)
- (narrow-to-region from (1- to)))
- (narrow-to-region from to)
- ;; note if the last char is modifier.
- (if (or (eq last-char ?$,15A(B) (eq last-char ?$,15B(B))
- (setq last-modifier t)))
- (goto-char (point-min))
- ;; Special rule 2. -- preceding "r halant" must be modifier.
- (when (looking-at "$,15p6-(B.")
- (setq preceding-r t)
- (goto-char (+ 2 (point))))
- ;; translate the rest characters into glyphs
- (while (re-search-forward dev-char-glyph-regexp nil t)
- (setq match-str (match-string 0))
- (setq glyph-str
- (concat glyph-str
- (gethash match-str dev-char-glyph-hash)))
- ;; count the number of consonant-glyhs.
- (if (string-match devanagari-consonant match-str)
- (setq cons-num (1+ cons-num))))
- ;; preceding-r must be attached before the anuswar if exists.
- (if preceding-r
- (if last-modifier
- (setq glyph-str (concat (substring glyph-str 0 -1)
- "$,4"'(B" (substring glyph-str -1)))
- (setq glyph-str (concat glyph-str "$,4"'(B"))))
- (if last-halant (setq glyph-str (concat glyph-str "$,4""(B")))
- ;;; *** glyph-to-glyph conversion ***
- (when (string-match dev-glyph-glyph-regexp glyph-str)
- (setq glyph-str
- (replace-match (gethash (match-string 0 glyph-str)
- dev-glyph-glyph-hash)
- nil t glyph-str))
- (if (and (> cons-num 1)
- (string-match dev-glyph-glyph-2-regexp glyph-str))
- (setq glyph-str
- (replace-match (gethash (match-string 0 glyph-str)
- dev-glyph-glyph-2-hash)
- nil t glyph-str))))
- ;;; *** glyph reordering ***
- (while (setq split-pos (string-match "$,4""(B\\|.$" glyph-str))
- (setq glyph-block (substring glyph-str 0 (1+ split-pos)))
- (setq glyph-str (substring glyph-str (1+ split-pos)))
- (setq
- glyph-block
- (if (string-match dev-glyph-right-modifier-regexp glyph-block)
- (sort (string-to-list glyph-block)
- (function (lambda (x y)
- (< (get-char-code-property x 'composition-order)
- (get-char-code-property y 'composition-order)))))
- (sort (string-to-list glyph-block)
- (function (lambda (x y)
- (let ((xo (get-char-code-property x 'composition-order))
- (yo (get-char-code-property y 'composition-order)))
- (if (= xo 2) nil (if (= yo 2) t (< xo yo)))))))))
- (setq glyph-str-list (nconc glyph-str-list glyph-block)))
- ;; concatenate and attach reference-points.
- (setq glyph-str
- (cdr
- (apply
- 'nconc
- (mapcar
- (function (lambda (x)
- (list
- (or (get-char-code-property x 'reference-point)
- '(5 . 3) ;; default reference point.
- )
- x)))
- glyph-str-list))))))
- (compose-region from to glyph-str)))
-
-(provide 'devan-util)
-
-;;; arch-tag: 9bc4d6e3-f2b9-4110-886e-ff9b66b7eebc
-;;; devan-util.el ends here
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