diff options
author | Kenichi Handa <handa@m17n.org> | 2008-02-22 02:48:41 +0000 |
---|---|---|
committer | Kenichi Handa <handa@m17n.org> | 2008-02-22 02:48:41 +0000 |
commit | 5f7bcac78eca614233388922d0500c255e12d803 (patch) | |
tree | 2aac95b521dae12e7b2a57b8a21eed6235696c24 /lisp/language/knd-util.el | |
parent | 0ac58320a6f8cff6bf019ac7ba3c5c1933c96aad (diff) |
Delete it
Diffstat (limited to 'lisp/language/knd-util.el')
-rw-r--r-- | lisp/language/knd-util.el | 542 |
1 files changed, 0 insertions, 542 deletions
diff --git a/lisp/language/knd-util.el b/lisp/language/knd-util.el deleted file mode 100644 index 25bbad7fe7e..00000000000 --- a/lisp/language/knd-util.el +++ /dev/null @@ -1,542 +0,0 @@ -;;; knd-util.el --- Support for composing Kannada characters - -;; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 -;; Free Software Foundation, Inc. - -;; Maintainer: Maintainer: CHOWKSEY, Kailash C. <klchxbec@m-net.arbornet.org> -;; Keywords: multilingual, Kannada - -;; 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: Jul. 14. 2003 - -;;; Commentary: - -;; This file provides character(Unicode) to glyph(CDAC) conversion and -;; composition of Kannada script characters. - -;;; Code: - -;;;###autoload - -;; Kannada Composable Pattern -;; C .. Consonants -;; V .. Vowel -;; H .. Virama -;; M .. Matra -;; V .. Vowel -;; (N .. Zerowidth Non Joiner) -;; (J .. Zerowidth Joiner. ) -;; 1. vowel -;; V(A)? -;; 2. syllable : maximum of 5 consecutive consonants. (e.g. kartsnya) -;; ((CH)?(CH)?(CH)?CH)?C(H|M?)? - -(defconst kannada-consonant - "[$,1>u(B-$,1?9(B]") - -(defconst kannada-consonant-needs-twirl - "[$,1>u>w(B-$,1>{>}(B-$,1>~? (B-$,1?"?$(B-$,1?+?-?0?3(B-$,1?9(B]\\($,1?M(B[$,1>u(B-$,1?9(B]\\)*[$,1?A?B?C?D>b(B]?$") - -(defconst kannada-composable-pattern - (concat - "\\([$,1>b(B-$,1>t?`>l(B]\\)\\|[$,1>c(B]" - "\\|\\(" - "\\(?:\\(?:[$,1>u(B-$,1?9(B]$,1?M(B\\)?\\(?:[$,1>u(B-$,1?9(B]$,1?M(B\\)?\\(?:[$,1>u(B-$,1?9(B]$,1?M(B\\)?[$,1>u(B-$,1?9(B]$,1?M(B\\)?" - "[$,1>u(B-$,1?9(B]\\(?:$,1?M(B\\|[$,1?>(B-$,1?M?U?C(B]?\\)?" - "\\)") - "Regexp matching a composable sequence of Kannada characters.") - -;;;###autoload -(defun kannada-compose-region (from to) - (interactive "r") - (save-excursion - (save-restriction - (narrow-to-region from to) - (goto-char (point-min)) - (while (re-search-forward kannada-composable-pattern nil t) - (kannada-compose-syllable-region (match-beginning 0) - (match-end 0)))))) -;;;###autoload -(defun kannada-compose-string (string) - (with-temp-buffer - (insert (decompose-string string)) - (kannada-compose-region (point-min) (point-max)) - (buffer-string))) - -;;;###autoload -(defun kannada-post-read-conversion (len) - (save-excursion - (save-restriction - (let ((buffer-modified-p (buffer-modified-p))) - (narrow-to-region (point) (+ (point) len)) - (kannada-compose-region (point-min) (point-max)) - (set-buffer-modified-p buffer-modified-p) - (- (point-max) (point-min)))))) - -(defun kannada-range (from to) - "Make the list of the integers of range FROM to TO." - (let (result) - (while (<= from to) (setq result (cons to result) to (1- to))) result)) - -(defun kannada-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)))))))) - -(defun kannada-regexp-of-hashtbl-vals (hashtbl) - "Return a regular expression that matches all values in hashtable HASHTBL." - (let ((max-specpdl-size 1000)) - (regexp-opt - (sort - (let (dummy) - (maphash (function (lambda (key val) (setq dummy (cons val dummy)))) hashtbl) - dummy) - (function (lambda (x y) (> (length x) (length y)))))))) - -;;;###autoload -(defun kannada-composition-function (pos &optional string) - "Compose Kannada 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 - ;; Not yet implemented. - nil - (goto-char pos) - (if (looking-at kannada-composable-pattern) - (prog1 (match-end 0) - (kannada-compose-syllable-region pos (match-end 0)))))) - -;; Notes on conversion steps. - -;; 1. chars to glyphs -;; -;; Rules will not be applied to the virama 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 virama, 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 -;; (2) spacing -;; (3) right modifier (may be matra) -;; (4) top matra -;; (5) preceding "r" -;; (7) following "r" -;; (8) bottom matra or virama. -;; -;; Otherwise, -;; (1) consonant-glyph/vowels, with nukta sign -;; (3) left matra -;; (4) top matra -;; (5) preceding "r" -;; (7) following "r" -;; (8) bottom matra or virama. -;; (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 knd-char-glyph - '(("$,1>e(B" . "$,43@(B") - ("$,1>f(B" . "$,43A(B") - ("$,1?>(B" . "$,44{(B") - ("$,1>g(B" . "$,43B(B") - ("$,1??(B" . nil) - ("$,1>h(B" . "$,43C(B") - ("$,1?@(B" . nil) - ("$,1>i(B" . "$,43D(B") - ("$,1?A(B" . "\$,44(B") - ("$,1>j(B" . "$,43E(B") - ("$,1?B(B" . "\$,45 (B") - ("$,1>k(B" . "$,43F4(B") - ("$,1?C(B" . "\$,45$(B") - ("$,1?`(B" . "$,43F5 (B") - ("$,1?D(B" . "\$,45%(B") - ;;("$,1>l(B" . nil) ; not implemented. - ;;("$,1?a(B" . nil) - ("$,1>n(B" . "$,43G(B") - ("$,1>o(B" . "$,43H(B") - ("$,1>p(B" . "$,43I(B") - ("$,1?F(B" . "\$,45&(B") - ("$,1?G(B" . "\$,45&4~(B") - ("$,1?H(B" . "\$,45&5'(B") - ("$,1>r(B" . "$,43J(B") - ("$,1?J(B" . "$,45&5 (B") - ("$,1>s(B" . "$,43K(B") - ("$,1?K(B" . "\$,45&5 4~(B") - ("$,1>t(B" . "$,43L(B") - ("$,1?L(B" . "\$,45((B") - ("$,1>b(B" . "$,43M(B") - ("$,1>c(B" . "$,43N(B") - ("$,1>u?M(B" . "$,43O5)(B") ("$,1>u(B" . "$,43O(B") ("$,1>u??(B" . "$,43P(B") ("$,1>u?@(B" . "$,43P4~(B") - ("$,1>v?M(B" . "$,43S5)(B") ("$,1>v(B" . "$,43S(B") ("$,1>v??(B" . "$,43T(B") ("$,1>v?@(B" . "$,43T4~(B") ("$,1>v?F(B" . "$,43S5&(B") ("$,1>v?G(B" . "$,43S5&4~(B") ("$,1>v?H(B" . "$,43S5&5'(B") ("$,1>v?J(B" . "$,43S5&5&5 (B") ("$,1>v?K(B" . "$,43S5&5&5 4~(B") ("$,1>v?L(B" . "$,43S5((B") - ("$,1>w?M(B" . "$,43V5)(B") ("$,1>w(B" . "$,43V(B") ("$,1>w??(B" . "$,43W(B") ("$,1>w?@(B" . "$,43W4~(B") - ("$,1>x?M(B" . "$,43Y5)(B") ("$,1>x(B" . "$,43Y(B") ("$,1>x??(B" . "$,43Z(B") ("$,1>x?@(B" . "$,43Z4~(B") - ("$,1>y?M(B" . "$,43\5)(B") ("$,1>y(B" . "$,43\(B") - ("$,1>z?M(B" . "$,43^5)(B") ("$,1>z(B" . "$,43^(B") ("$,1>z??(B" . "$,43_(B") ("$,1>z?@(B" . "$,43_4~(B") - ("$,1>{?M(B" . "$,43a5)(B") ("$,1>{(B" . "$,43a(B") ("$,1>{??(B" . "$,43b(B") ("$,1>{?@(B" . "$,43b4~(B") - ("$,1>|?M(B" . "$,43d5)(B") ("$,1>|(B" . "$,43d(B") ("$,1>|??(B" . "$,43f(B") ("$,1>|?@(B" . "$,43f4~(B") ("$,1>|?F(B" . "$,43e5&(B") ("$,1>|?G(B" . "$,43e5&4~(B") ("$,1>|?H(B" . "$,43e5&5'(B") ("$,1>|?J(B" . "$,43e5&5&5 (B") ("$,1>|?K(B" . "$,43e5&5&5 4~(B") ("$,1>|?L(B" . "$,43e5((B") - ("$,1>}?M(B" . "$,44a4z3h45)(B") ("$,1>}(B" . "$,44a4z3h4(B") ("$,1>}??(B" . "$,44b3h4(B") ("$,1>}?@(B" . "$,44b3h44~(B") ("$,1>}?B(B". "$,44a4z3h5 (B") ("$,1>}?J(B". "$,44a5&3h5 (B") ("$,1>}?K(B". "$,44a5&3h5 4~(B") - ("$,1>~?M(B" . "$,43j5)(B") ("$,1>~(B" . "$,43j(B") - ("$,1>?M(B" . "$,43m5)(B") ("$,1>(B" . "$,43l(B") ("$,1?#?>(B" . "$,43m4{(B") ("$,1>??(B" . "$,43n(B") ("$,1>?@(B" . "$,43n4~(B") ("$,1>?F(B" . "$,43m5&(B") ("$,1>?G(B" . "$,43m5&4~(B") ("$,1>?H(B" . "$,43m5&5'(B") ("$,1>?J(B" . "$,43m5&5&5 (B") ("$,1>?K(B" . "$,43m5&5&5 4~(B") ("$,1>?L(B" . "$,43m5((B") - ("$,1? ?M(B" . "$,43p5)(B") ("$,1? (B" . "$,43p(B") ("$,1? ??(B" . "$,43q(B") ("$,1? ?@(B" . "$,43q4~(B") - ("$,1?!?M(B" . "$,43s5)(B") ("$,1?!(B" . "$,43s(B") ("$,1?!??(B" . "$,43t(B") ("$,1?!?@(B" . "$,43t4~(B") - ("$,1?"?M(B" . "$,43v5)(B") ("$,1?"(B" . "$,43v(B") ("$,1?"??(B" . "$,43w(B") ("$,1?"?@(B" . "$,43w4~(B") - ("$,1?#?M(B" . "$,43z5)(B") ("$,1?#(B" . "$,43y(B") ("$,1?#?>(B" . "$,43z4{(B") ("$,1?#??(B" . "$,43{(B") ("$,1?#?@(B" . "$,43{4~(B") ("$,1?#?F(B" . "$,43z5&(B") ("$,1?#?G(B" . "$,43z5&4~(B") ("$,1?#?H(B" . "$,43z5&5'(B") ("$,1?#?J(B" . "$,43z5&5&5 (B") ("$,1?#?K(B" . "$,43z5&5&5 4~(B") ("$,1?#?L(B" . "$,43z5((B") - ("$,1?$?M(B" . "$,43}5)(B") ("$,1?$(B" . "$,43}(B") ("$,1?$??(B" . "$,43~(B") ("$,1?$?@(B" . "$,43~4~(B") - ("$,1?%?M(B" . "$,44B5)(B") ("$,1?%(B" . "$,44B(B") ("$,1?%??(B" . "$,44C(B") ("$,1?%?@(B" . "$,44C4~(B") - ("$,1?&?M(B" . "$,44E5)(B") ("$,1?&(B" . "$,44E(B") ("$,1?&??(B" . "$,44F(B") ("$,1?&?@(B" . "$,44F4~(B") - ("$,1?'?M(B" . "$,44H5)(B") ("$,1?'(B" . "$,44H(B") ("$,1?'??(B" . "$,44I(B") ("$,1?'?@(B" . "$,44I4~(B") - ("$,1?(?M(B" . "$,44K5)(B") ("$,1?((B" . "$,44K(B") ("$,1?(??(B" . "$,44L(B") ("$,1?(?@(B" . "$,44L4~(B") - ("$,1?*?M(B" . "$,44N5)(B") ("$,1?*(B" . "$,44N(B") ("$,1?*??(B" . "$,44O(B") ("$,1?*?@(B" . "$,44O4~(B") ("$,1?*?A(B" . "$,44N5"(B") ("$,1?*?B(B" . "$,44N5#(B") ("$,1?*?J(B" . "$,44N5&5#(B") ("$,1?*?K(B" . "$,44N5&5#4~(B") - ("$,1?+?M(B" . "$,44Q5)(B") ("$,1?+(B" . "$,44Q(B") ("$,1?+??(B" . "$,44R(B") ("$,1?+?@(B" . "$,44R4~(B") ("$,1?+?A(B" . "$,44Q5"(B") ("$,1?+?B(B" . "$,44Q5#(B") ("$,1?+?J(B" . "$,44Q5&5#(B") ("$,1?+?K(B" . "$,44Q5&5#4~(B") - ("$,1?,?M(B" . "$,44W5)(B") ("$,1?,(B" . "$,44V(B") ("$,1?,?>(B". "$,44W4{(B") ("$,1?,??(B" . "$,44X(B") ("$,1?,?@(B" . "$,44X4~(B") ("$,1?,?F(B" . "$,44W5&(B") ("$,1?,?G(B" . "$,44W5&4~(B") ("$,1?,?H(B" . "$,44W5&5'(B") ("$,1?,?J(B" . "$,44W5&5&5 (B") ("$,1?,?K(B" . "$,44W5&5&5 4~(B") ("$,1?,?L(B" . "$,44W5((B") - ("$,1?-?M(B" . "$,44Z5)(B") ("$,1?-(B" . "$,44Z(B") ("$,1?-??(B" . "$,44[(B") ("$,1?-?@(B" . "$,44[4~(B") - ("$,1?.?M(B" . "$,44h5!5)(B") ("$,1?.(B" . "$,44h4z4(B") ("$,1?.?>(B" . "$,44h4z5!4{(B") ("$,1?.??(B" . "$,44i4(B") ("$,1?.?@(B" . "$,44i44~(B") ("$,1?.?J(B". "$,44h5&5 (B") ("$,1?.?K(B". "$,44h5&5 4~(B") - ("$,1?/?M(B" . "$,44^4z5!5)(B") ("$,1?/(B" . "$,44^4z4(B") ("$,1?/?>(B" . "$,44^4z5!4{(B")("$,1?/??(B" . "$,44_4(B") ("$,1?/?@(B" . "$,44_44~(B") ("$,1?/?J(B" . "$,44^5&5 (B") ("$,1?/?K(B" . "$,44^5&5 4~(B") - ("$,1?0?M(B" . "$,44a5)(B") ("$,1?0(B" . "$,44a(B") ("$,1?0??(B" . "$,44b(B") ("$,1?0?@(B" . "$,44b4~(B") - ("$,1?0?M(B" . "$,44a5)(B") ("$,1?0(B" . "$,44a(B") ("$,1?0??(B" . "$,44b(B") ("$,1?0?@(B" . "$,44b4~(B") - ("$,1?2?M(B" . "$,44e5)(B") ("$,1?2(B" . "$,44d(B") ("$,1?2?>(B" . "$,44e4{(B") ("$,1?2??(B" . "$,44f(B") ("$,1?2?@(B" . "$,44f4~(B") ("$,1?2?F(B" . "$,44e5&(B") ("$,1?2?G(B" . "$,44e5&4~(B") ("$,1?2?H(B" . "$,44e5&5'(B") ("$,1?2?J(B" . "$,44e5&5&5 (B") ("$,1?2?K(B" . "$,44e5&5&5 4~(B") ("$,1?2?L(B" . "$,44e5((B") - ("$,1?5?M(B" . "$,44h5)(B") ("$,1?5(B" . "$,44h(B") ("$,1?5??(B" . "$,44i(B") ("$,1?5?@(B" . "$,44i4~(B") ("$,1?5?A(B" . "$,44h5"(B") ("$,1?5?B(B" . "$,44h5#(B") ("$,1?5?J(B" . "$,44h5&5#(B") ("$,1?5?K(B" . "$,44h5&5#4~(B") - ("$,1?6?M(B" . "$,44k5)(B") ("$,1?6(B" . "$,44k(B") ("$,1?6??(B" . "$,44l(B") ("$,1?6?@(B" . "$,44l4~(B") - ("$,1?7?M(B" . "$,44n5)(B") ("$,1?7(B" . "$,44n(B") ("$,1?7??(B" . "$,44o(B") ("$,1?7?@(B" . "$,44o4~(B") - ("$,1?8?M(B" . "$,44q5)(B") ("$,1?8(B" . "$,44q(B") ("$,1?8??(B" . "$,44r(B") ("$,1?8?@(B" . "$,44r4~(B") - ("$,1?9?M(B" . "$,44t5)(B") ("$,1?9(B" . "$,44t(B") ("$,1?9??(B" . "$,44u(B") ("$,1?9?@(B" . "$,44u4~(B") - ("$,1?3?M(B" . "$,44w5)(B") ("$,1?3(B" . "$,44w(B") ("$,1?3??(B" . "$,44x(B") ("$,1?3?@(B" . "$,44x4~(B")) -"Kannada characters to glyphs conversion table. -Default value contains only the basic rules.") - -(defvar knd-char-glyph-hash - (let* ((hash (make-hash-table :test 'equal))) - (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) - knd-char-glyph) - hash)) - -(defvar knd-char-glyph-regexp - (kannada-regexp-of-hashtbl-keys knd-char-glyph-hash)) - -(defvar knd-conjunct-glyph - '(("$,1>u(B" . "$,43Q(B") ("$,1>v(B" . "$,43U(B") ("$,1>w(B" . "$,43X(B") ("$,1>x(B" . "$,43[(B") ("$,1>y(B" . "$,43](B") - ("$,1>z(B" . "$,43`(B") ("$,1>{(B" . "$,43c(B") ("$,1>|(B" . "$,43g(B") ("$,1>}(B" . "$,43i(B") ("$,1>~(B" . "$,43k(B") - ("$,1>(B" . "$,43o(B") ("$,1? (B" . "$,43r(B") ("$,1?!(B" . "$,43u(B") ("$,1?"(B" . "$,43x(B") ("$,1?#(B" . "$,43|(B") - ("$,1?$(B" . "$,44A(B") ("$,1?%(B" . "$,44D(B") ("$,1?&(B" . "$,44G(B") ("$,1?'(B" . "$,44J(B") ("$,1?((B" . "$,44M(B") - ("$,1?*(B" . "$,44P(B") ("$,1?+(B" . "$,44U(B") ("$,1?,(B" . "$,44Y(B") ("$,1?-(B" . "$,44\(B") ("$,1?.(B" . "$,44](B") - ("$,1?/(B" . "$,44`(B") ("$,1?0(B" . "$,44c(B") ("$,1?2(B" . "$,44g(B") ("$,1?3(B" . "$,44y(B") ("$,1?5(B" . "$,44j(B") - ("$,1?6(B" . "$,44m(B") ("$,1?7(B" . "$,44p(B") ("$,1?8(B" . "$,44s(B") ("$,1?9(B" . "$,44v(B")) -"Kannada characters to conjunct glyphs conversion table.") - -(defvar knd-conjunct-glyph-hash - (let* ((hash (make-hash-table :test 'equal))) - (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) - knd-conjunct-glyph) - hash)) - -(defvar knd-conjunct-glyph-regexp - (kannada-regexp-of-hashtbl-vals knd-conjunct-glyph-hash)) - -(mapc - (function (lambda (x) - (put-char-code-property (aref (cdr x) 0) 'reference-point '(5 . 3)))) - knd-conjunct-glyph) - -;; glyph-to-glyph conversion table. -;; it is supposed that glyphs are ordered in -;; [consonant/nukta] - [matra/virama] - [preceding-r] - [anuswar]. - -(defvar knd-glyph-glyph - '(("$,45$4A(B" . "$,45*(B") - ("$,45'4A(B" . "$,45+(B") - ("$,44A3g(B" . "$,45,(B") - ("$,45$3Q(B" . "$,45-(B"))) - -(defvar knd-glyph-glyph-hash - (let* ((hash (make-hash-table :test 'equal))) - (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) - knd-glyph-glyph) - hash)) -(defvar knd-glyph-glyph-regexp - (kannada-regexp-of-hashtbl-keys knd-glyph-glyph-hash)) - -(defun knd-charseq (from &optional to) - (if (null to) (setq to from)) - (number-sequence (decode-char 'kannada-cdac from) - (decode-char 'kannada-cdac to))) - -(defvar knd-glyph-cv - (append - (knd-charseq #x40 #x50) - (knd-charseq #x52 #x54) - (knd-charseq #x56 #x57) - (knd-charseq #x59 #x5a) - (knd-charseq #x5c) - (knd-charseq #x5e #x5f) - (knd-charseq #x61 #x62) - (knd-charseq #x64 #x66) - (knd-charseq #x6a) - (knd-charseq #x6c #x6e) - (knd-charseq #x70 #x71) - (knd-charseq #x73 #x74) - (knd-charseq #x76 #x77) - (knd-charseq #x79 #x7b) - (knd-charseq #x7d #x7e) - (knd-charseq #xa2 #xa3) - (knd-charseq #xa5 #xa6) - (knd-charseq #xa8 #xa9) - (knd-charseq #xab #xac) - (knd-charseq #xae #xaf) - (knd-charseq #xb1 #xb2) - (knd-charseq #xb6 #xb8) - (knd-charseq #xb6 #xb8) - (knd-charseq #xba #xbb) - (knd-charseq #xbe #xbf) - (knd-charseq #xc1 #xc2) - (knd-charseq #xc4 #xc6) - (knd-charseq #xc8 #xc9) - (knd-charseq #xcb #xcc) - (knd-charseq #xce #xcf) - (knd-charseq #xd1 #xd2) - (knd-charseq #xd4 #xd5) - (knd-charseq #xd7 #xd8) - (knd-charseq #xc3)) - "Kannada Consonants/Vowels/Nukta Glyphs") - -(defvar knd-glyph-space - (knd-charseq #xb3 #xb4) - "Kannada Spacing Glyphs") - -(defvar knd-glyph-right-modifier - (append - (knd-charseq #xdb #xdd) - (knd-charseq #xdf) - (knd-charseq #xe0 #xe3) - (knd-charseq #xe9)) - "Kannada Modifiers attached at the right side.") - -(defvar knd-glyph-right-modifier-regexp - (concat "[" knd-glyph-right-modifier "]")) - -(defvar knd-glyph-jha-tail - (knd-charseq #x68) - "Kannada tail for jha.") - -(defvar knd-glyph-top-matra - (append - (knd-charseq #xda) - (knd-charseq #xdd) - (knd-charseq #xe6) - (knd-charseq #xe8)) - "Kannada Matras attached at the top side.") - -(defvar knd-glyph-bottom-matra - (append - (knd-charseq #xe4 #xe5) - (knd-charseq #xe7)) - "Kannada Matras attached at the bottom.") - -(defvar knd-glyph-end-marks - (append - (knd-charseq #x25) - (knd-charseq #x4d #x4e) - (knd-charseq #xde)) - "Kannada end marks: arkavattu, virama, au and diirghaa.") - -(defvar knd-glyph-bottom-modifier - (append - (knd-charseq #x51) - (knd-charseq #x55) - (knd-charseq #x58) - (knd-charseq #x5b) - (knd-charseq #x5d) - (knd-charseq #x60) - (knd-charseq #x63) - (knd-charseq #x67) - (knd-charseq #x69) - (knd-charseq #x6b) - (knd-charseq #x6f) - (knd-charseq #x72) - (knd-charseq #x75) - (knd-charseq #x78) - (knd-charseq #x7c) - (knd-charseq #xa1) - (knd-charseq #xa4) - (knd-charseq #xa7) - (knd-charseq #xaa) - (knd-charseq #xad) - (knd-charseq #xb0) - (knd-charseq #xb5) - (knd-charseq #xb9) - (knd-charseq #xbc #xbd) - (knd-charseq #xc0) - (knd-charseq #xc3) - (knd-charseq #xc7) - (knd-charseq #xca) - (knd-charseq #xcd) - (knd-charseq #xd0) - (knd-charseq #xd3) - (knd-charseq #xd6) - (knd-charseq #xd9) - (knd-charseq #xea #xef)) - "Kannada Modifiers attached at the bottom.") - -(defvar knd-glyph-order - `((,knd-glyph-cv . 1) - (,knd-glyph-top-matra . 2) - (,knd-glyph-jha-tail . 3) - (,knd-glyph-right-modifier . 4) - (,knd-glyph-space . 5) - (,knd-glyph-bottom-modifier . 5) - (,knd-glyph-bottom-matra . 6) - (,knd-glyph-end-marks . 7) - )) - -(mapc - (function (lambda (x) - (mapc - (function (lambda (y) - (put-char-code-property y 'composition-order (cdr x)))) - (car x)))) - knd-glyph-order) - -(defun kannada-compose-syllable-string (string) - (with-temp-buffer - (insert (decompose-string string)) - (kannada-compose-syllable-region (point-min) (point-max)) - (buffer-string))) - -;; kch -(defun kannada-compose-syllable-region (from to) - "Compose kannada syllable in region FROM to TO." - (let ((glyph-str nil) (cons-num 0) (glyph-str-list nil) - (last-virama nil) (preceding-r nil) (last-modifier nil) - (last-char (char-before to)) match-str pos - glyph-block split-pos (conj nil) (rest nil)) - (save-excursion - (save-restriction - ;;; *** char-to-glyph conversion *** - ;; Special rule 1. -- Last virama must be preserved. - (if (eq last-char ?$,1?M(B) - (progn - (setq last-virama t) - (narrow-to-region from (1- to))) - (narrow-to-region from to)) - (goto-char (point-min)) - ;; Special rule 2. -- preceding "r virama" must be modifier. - (when (looking-at "$,1?0?M(B.") - (setq preceding-r t) - (goto-char (+ 2 (point)))) - ;; remove conjunct consonants - (while (re-search-forward knd-char-glyph-regexp nil t) - (setq match-str (match-string 0)) - (if (and (string-match kannada-consonant match-str) - (> cons-num 0)) - (progn - (setq conj (concat conj (gethash (match-string 0 match-str) - knd-conjunct-glyph-hash))) - (setq match-str (replace-match "" t nil match-str)) - (if (string-match "$,1?M(B" rest) - (setq rest (replace-match "" t nil rest))))) - (setq rest (concat rest match-str)) - ;; count the number of consonant-glyhs. - (if (string-match kannada-consonant match-str) - (setq cons-num (1+ cons-num)))) - ;; translate the rest characters into glyphs - (setq pos 0) - (while (string-match knd-char-glyph-regexp rest pos) - (setq match-str (match-string 0 rest)) - (setq pos (match-end 0)) - (setq glyph-str - (concat glyph-str (gethash match-str knd-char-glyph-hash)))) - - (if conj (setq glyph-str (concat glyph-str conj))) - (if last-virama (setq glyph-str (concat glyph-str "$,45)(B")) - (goto-char (point-min)) - (if (re-search-forward kannada-consonant-needs-twirl nil t) - (progn - (setq match-str (match-string 0)) - (setq glyph-str (concat glyph-str "$,44z(B"))))) - ;; preceding-r must be attached - (if preceding-r - (setq glyph-str (concat glyph-str "$,43%(B"))) - ;;; *** glyph-to-glyph conversion *** - (when (string-match knd-glyph-glyph-regexp glyph-str) - (setq glyph-str - (replace-match (gethash (match-string 0 glyph-str) - knd-glyph-glyph-hash) - nil t glyph-str))) - ;;; *** glyph reordering *** - (while (setq split-pos (string-match "$,45)(B\\|.$" glyph-str)) - (setq glyph-block (substring glyph-str 0 (1+ split-pos))) - (setq glyph-str (substring glyph-str (1+ split-pos))) - (setq - glyph-block - (sort (string-to-list glyph-block) - (function (lambda (x y) - (< (get-char-code-property x 'composition-order) - (get-char-code-property y 'composition-order)))))) - (setq glyph-str-list (nconc glyph-str-list glyph-block))) - ;;; *** insert space glyphs for kerning *** - (if (> cons-num 0) - (let ((curr glyph-str-list) (prev nil) (last-bott nil) bott co) - (while curr - (setq co (get-char-code-property - (car curr) 'composition-order) - bott (or (eq co 5) (eq co 6))) - (if (and bott last-bott) - (setcdr prev (cons ?$,44T(B curr))) - (setq last-bott bott prev curr curr (cdr curr))))) - ;; 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 'knd-util) - -;;; arch-tag: 78d32230-a960-46a5-b622-61ed6ffcf8fc -;;; knd-util.el ends here |