diff options
| author | Richard M. Stallman <rms@gnu.org> | 2001-11-25 02:40:11 +0000 |
|---|---|---|
| committer | Richard M. Stallman <rms@gnu.org> | 2001-11-25 02:40:11 +0000 |
| commit | 1bec6fdbd774d8a17b04ed41d7d2ed659e029443 (patch) | |
| tree | d4652d18b9a9c553f4fd7222bc4c804f78caeecc /lisp/language/devan-util.el | |
| parent | 16808556788c40f60b0c330396237dd62ba4de83 (diff) | |
| download | emacs-1bec6fdbd774d8a17b04ed41d7d2ed659e029443.tar.gz | |
Completely re-written.
Diffstat (limited to 'lisp/language/devan-util.el')
| -rw-r--r-- | lisp/language/devan-util.el | 1855 |
1 files changed, 602 insertions, 1253 deletions
diff --git a/lisp/language/devan-util.el b/lisp/language/devan-util.el index f77ac2d4214..a38cdc2ffc7 100644 --- a/lisp/language/devan-util.el +++ b/lisp/language/devan-util.el @@ -1,10 +1,9 @@ -;;; devan-util.el --- support for Devanagari Script Composition +;;; devan-util.el --- Support for composing Devanagari characters -;; Copyright (C) 1996, 2001 Free Software Foundation, Inc. +;; Copyright (C) 2001 Free Software Foundation, Inc. -;; Author: KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp> - -;; Keywords: multilingual, Indian, Devanagari +;; Maintainer: KAWABATA, Taichi <batta@beige.ocn.ne.jp> +;; Keywords: multilingual, Devanagari ;; This file is part of GNU Emacs. @@ -23,1266 +22,616 @@ ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, ;; Boston, MA 02111-1307, USA. -;;; Commentary: - -;; History: -;; 1996.10.18 written by KAWABATA, Taichi <kawabata@is.s.u-tokyo.ac.jp> -;; 1997.3.24 fixed some bugs. +;; Created: Feb. 17. 2001 -;; Future work :: -;; Decompose the input characters and process them on the character basis. +;;; Commentary: -;; Devanagari script composition rules and related programs. +;; This file provides character(Unicode) to glyph(CDAC) conversion and +;; composition of Devanagari script characters. ;;; Code: -;;; -;;; Steps toward composition of Devanagari Characters. -;;; - -;;; Basic functions. - ;;;###autoload -(defun indian-to-devanagari (char) - "Convert IS 13194 character CHAR to Devanagari basic characters. -If CHAR is not IS 13194, return CHAR as is." - (let ((charcodes (split-char char))) - (if (eq (car charcodes) 'indian-is13194) - (make-char 'indian-2-column ?\x21 (nth 1 charcodes)) - char))) -;;;###autoload -(defun devanagari-to-indian (char) - "Convert Devanagari basic character CHAR to IS 13194 characters. -If CHAR is not Devanagari basic character, return CHAR as is." - (let ((charcodes (split-char char))) - (if (and (eq (car charcodes) 'indian-2-column) - (= (nth 1 charcodes) ?\x21)) - (make-char 'indian-is13194 (nth 2 charcodes)) - char))) - -;;;###autoload -(defun indian-to-devanagari-region (from to) - "Convert IS 13194 characters in region to Devanagari basic characters. -When called from a program, expects two arguments, -positions (integers or markers) specifying the region." +;; 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(MA?|D|H)? + +(defconst devanagari-consonant + "[$,15U(B-$,15y68(B-$,16?(B]") + +(defconst devanagari-composable-pattern + (concat + "\\([$,15E(B-$,15T6@6A(B][$,15A5B(B]?\\)\\|$,15C(B" + "\\|\\(" + "\\(?:\\(?:[$,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.") + +(defun devanagari-compose-region (from to) (interactive "r") (save-excursion - (goto-char from) - (while (< (point) to) - (let ((char (following-char))) - (if (eq (char-charset char) 'indian-is13194) - (progn - (delete-char 1) - (insert (indian-to-devanagari char))) - (forward-char 1)))))) - -;;;###autoload -(defun devanagari-to-indian-region (from to) - "Convert Devanagari basic characters in region to Indian characters. -When called from a program, expects two arguments, -positions (integers or markers) specifying the region." - (interactive "r") - (save-excursion - (goto-char from) - (while (< (point) to) - (let ((char (following-char))) - (if (eq (char-charset char) 'indian-2-column) - (progn - (delete-char 1) - (insert (devanagari-to-indian char))) - (forward-char 1)))))) - -;;;###autoload -(defun indian-to-devanagari-string (string) - "Convert Indian characters in STRING to Devanagari Basic characters." - (let* ((len (length string)) - (i 0) - (vec (make-vector len 0))) - (while (< i len) - (aset vec i (indian-to-devanagari (aref string i))) - (setq i (1+ i))) - (concat vec))) - -;; Phase 0 - Determine whether the characters can be composed. -;; -;;; -;;; Regular expressions to split characters for composition. -;;; -;; -;; Indian script word contains one or more syllables. -;; In BNF, it can be expressed as follows: -;; -;; Word ::= {Syllable} [Cons-Syllable] -;; Syllable ::= Cons-Vowel-Syllable | Vowel-Syllable -;; Vowel-Syllable ::= V[D] -;; Cons-Vowel-Syllable ::= [Cons-Syllable] Full-Cons [M] [D] -;; Cons-Syllable ::= [Pure-Cons] [Pure-Cons] [Pure-Cons] Pure-Cons -;; Pure-Cons ::= Full-Cons H -;; Full-Cons ::= C [N] -;; -;; {} repeat, [] optional -;; -;; C - Consonant ($(5!3!4!5!6!7!8!9!:!;!<!=!>!?!@!A!B!C!D!E(B -;; $(5!F!G!H!I!J!K!L!M!N!O!P!Q!R!S!T!U!V!W!X(B) -;; N - Nukta ($(5!i(B) -;; H - Halant($(5!h(B) or Virama -;; V - Vowel ($(5!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2#&#'#*(B) -;; ("$(5#&#'#*(B" can be obtained by IS13194 vowels with nukta.) -;; D - Vowel Modifiers, i.e. Anuswar, Chandrabindu ($(5!!!"(B) -;; (Visaraga ($(5!#(B) is excluded.) -;; M - Matra ($(5!Z![!\!]!^!_!`!a!b!c!d!e!f!g#K#L#M(B) -;; ("$(5#K#L#M(B" can be obtained by IS13194 matras with nukta.) -;; -;; In Emacs, one syllable of Indian language is considered to be one -;; composite glyph. If we expand the above expression for -;; cons-vowel-syllable, it would be: -;; -;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] [D] -;; -;; Therefore, in worst case, the one syllable may contain -;; following characters. -;; -;; C N H C N H C N H C N H C N M D -;; -;; The example is a sanskrit word "kArtsnya", where five consecutive -;; consonants appear. -;; -;; On the other hand, consonant-syllable, which appears at the end of -;; the word, would have the following expression: -;; -;; [C [N] H] [C [N] H] [C [N] H] C [N] H -;; -;; This is acceptable BEFORE proper consonant-syllable is input. The -;; string which doesn't match with the above expression is invalid and -;; thus must be fixed. -;; -;; Note: -;; Third case can be considered, which is an acceptable syllable and can -;; not add any code more. -;; -;; [[C [N] H] [C [N] H] [C [N] H] C [N] H] C [N] [M] D -;; -;; However, to make editing possible even in this condition, we will -;; not consider about this case. -;; -;; Note: -;; Currently, it seems that the only following consonants would have -;; Nukta sign attatched. -;; ($(5!3!4!5!:!?!@!I(B) -;; Therefore, [$(5!3(B-$(5!X(B]$(5!i(B? can be re-written as -;; \\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X(B] - -(defconst devanagari-full-cons - "\\(\\([$(5!3!4!5!:!?!@!I(B]$(5!i(B\\)\\|[$(5!3(B-$(5!X$.$E"%(B]\\)" - "Devanagari full consonant") - -(defconst devanagari-pure-cons - (concat "\\(" devanagari-full-cons "$(5!h(B\\)") - "Devanagari pure consonant") - -(defconst devanagari-matra - "\\(\\([$(5!_![!\(B]$(5!i(B\\)\\|[$(5!Z(B-$(5!g#K#L#M(B]\\)" - "Devanagari Matra Signs. '$(5#K#L#M(B' can also be created from the combination -of '$(5!_![!\(B' and nukta sign.") - -(defconst devanagari-vowel - "\\(\\([$(5!*!&!'(B]$(5!i(B\\)\\|[$(5!$(B-$(5!2#&#'#*(B]\\)" - "Devanagari Vowels. '$(5#&#'#*(B' can also be created from the combination -of '$(5!*!&!'(B' and nukta sign.") - -(defconst devanagari-vowel-syllable - (concat devanagari-vowel "[$(5!!!"(B]?") - "Devanagari vowel syllable.") - -(defconst devanagari-cons-syllable - (concat devanagari-pure-cons "?" devanagari-pure-cons "?" - devanagari-pure-cons "?" devanagari-pure-cons "$") - "Devanagari consonant syllable") - -(defconst devanagari-cons-vowel-syllable - (concat "\\(" - devanagari-pure-cons "?" devanagari-pure-cons "?" - devanagari-pure-cons "?" devanagari-pure-cons "\\)?" - devanagari-full-cons devanagari-matra "?[$(5!!!"(B]?") - "Devanagari consonant vowel syllable.") - -;; -;; Also, digits and virams should be processed other than syllables. -;; -;; In IS 13194, Avagrah is obtained by Nukta after Viram, and -;; OM is obtained by Nukta after Chandrabindu -;; - -(defconst devanagari-digit-viram-visarga - "[$(5!q(B-$(5!z!j!#(B]") - -(defconst devanagari-other-sign - "\\([$(5!!!j(B]$(5!i(B\\)\\|\\([$(5#!#J(B]\\)") - -(defconst devanagari-composite-glyph-unit - (concat "\\(" devanagari-cons-syllable - "\\)\\|\\(" devanagari-vowel-syllable - "\\)\\|\\(" devanagari-cons-vowel-syllable - "\\)\\|\\(" devanagari-other-sign - "\\)\\|\\(" devanagari-digit-viram-visarga "\\)") - "Regexp matching to Devanagari string to be composed form one glyph.") - -;;(put-charset-property charset-devanagari-1-column -;; 'char-to-glyph 'devanagari-compose-string) -;;(put-charset-property charset-devanagari-2-column -;; 'char-to-glyph 'devanagari-compose-string) - -;; Sample -;; -;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![(B") => 0 -;;(string-match devanagari-cons-vowel-syllable-examine "$(5!F!h!D!\(B") => 0 -;;(string-match devanagari-cons-vowel-syllable-examine "$(5!X![!F!h!D!\(B") => 0 - -;; -;; Steps toward the composition -;; Converting Character Codes to Composite Glyph. -;; -;; Example : $(5!X![(B/$(5!F!h!D!\(B + (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))) + +(defun 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 regexp-of-hashtbl-keys (hashtbl) + "Returns the regular expression of hashtable keys." + (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 devanagari-composition-function (from to pattern &optional string) + "Compose Devanagari characters in REGION, or STRING if specified. +Assume that the REGION or STRING must fully match the composable +PATTERN regexp." + (if string (devanagari-compose-syllable-string string) + (devanagari-compose-syllable-region from to)) + (- to from)) + +;; Register a function to compose Devanagari characters. +(mapc + (function (lambda (ucs) + (aset composition-function-table (decode-char 'ucs ucs) + (list (cons devanagari-composable-pattern + 'devanagari-composition-function))))) + (nconc '(#x0903) (range #x0905 #x0939) (range #x0958 #x0961))) + +;; 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. ;; -;; First, convert Characters to appropriate glyphs. -;; -;; => $(5!X![(B/$(5"F!D!\(B -;; -;; Then, determine the base glyph, apply-orders and apply-rules. -;; -;; => $(5!X(B (ml.mr) $(5![(B / $(5!D(B (ml.mr) $(5"F(B (mr ml) $(5!\(B -;; -;; Finally, convert 2-column glyphs to 1-column glyph -;; if such a glyph exist. -;; -;; => $(6!X(B (ml.mr) $(6![(B / $(6!D(B (ml.mr) $(6"F(B (mr ml) $(6!\(B -;; -;; Compose the glyph. -;; -;; => 4$(6!Xt%![0!X![1(B/4$(6!Dt%"Fv#!\0!D"F!\1(B -;; => 4$(6!Xt%![0!X![14!Dt%"Fv#!\0!D"F!\1(B -;; - -;; -;; Phase 1: Converting Character Code to Glyph Code. +;; If the glyph-group contains right modifier, +;; (1) consonant-glyphs/vowels, with nukta sign +;; (2) spacing +;; (3) right modifier (may be matra) +;; (4) top matra +;; (5) preceding "r" +;; (6) anuswar +;; (7) following "r" +;; (8) bottom matra or halant. ;; -;; -;; IMPORTANT: -;; There may be many rules that you many want to suppress. -;; In that case, please comment out that rule. -;; -;; RULES WILL BE EVALUATED FROM FIRST TO LAST. -;; PUT MORE SPECIFIC RULES FIRST. -;; -;; TO DO: -;; Prepare multiple specific list of rules for each languages -;; that adopt Devanagari script. -;; - -(defconst devanagari-char-to-glyph-rules - '( - - ;; `r' at the top of syllable and followed by other consonants. - ;; ("[^$(5!h(B]\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B") - ("^\\($(5!O!h(B\\)[$(5!3(B-$(5!X(B]" "$(5"p(B") - - ;; Ligature Rules - ("\\($(5!3!h!B!h!O!h!M(B\\)" "$(5$!(B" sanskrit) - ("\\($(5!3!h!B!h!T(B\\)" "$(5$"(B" sanskrit) - ("\\($(5!3!h!B!h!M(B\\)" "$(5$#(B" sanskrit) - ("\\($(5!3!h!F!h!M(B\\)" "$(5$$(B") - ("\\($(5!3!h!O!h!M(B\\)" "$(5$%(B") - ("\\($(5!3!h!O(B\\)" "$(5"#(B") ; Post "r" - ("\\($(5!3!h!T!h!M(B\\)" "$(5$&(B" sanskrit) - ("\\($(5!3!h(B\\)$(5!3!h(B[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Special Half Form - ("\\($(5!3!h!3(B\\)" "$(5$'(B") - ("\\($(5!3!h(B\\)$(5!B!h!O(B" "$(5"3(B") ; Special Rules for "k-tr" - ("\\($(5!3!h!B(B\\)" "$(5$((B") - ("\\($(5!3!h!F(B\\)" "$(5$)(B") - ("\\($(5!3!h!L(B\\)" "$(5$*(B") - ("\\($(5!3!h!M(B\\)" "$(5$+(B") - ("\\($(5!3!h!Q(B\\)" "$(5$,(B") - ("\\($(5!3!h!T(B\\)" "$(5$-(B") - ("\\($(5!3!h!V!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form - ("\\($(5$.!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"l(B") ; Half Form - ("\\($(5!3!h!V(B\\)" "$(5$.(B") - ("\\($(5!3!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"3(B") ; Half Form - ("\\($(5!3!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"s(B") ; Nukta Half Form - ("\\($(5!3!i(B\\)" "$(5#3(B") ; Nukta - ("\\($(5!4!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"4(B") ; Half Form - ("\\($(5!4!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"t(B") ; Nukta Half Form - ("\\($(5!4!i(B\\)" "$(5#4(B") ; Nukta - ("\\($(5!5!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"`(B") ; Half Form - ("\\($(5!5!h!O(B\\)" "$(5"$(B") ; Post "r" - ("\\($(5!5!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"5(B") ; Half Form - ("\\($(5!5!i!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"u(B") ; Nukta Half Form - ("\\($(5!5!i(B\\)" "$(5#5(B") ; Nukta - ("\\($(5!6!h!F!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"a(B") ; Half Form - ("\\($(5!6!h!F(B\\)" "$(5$/(B") - ; Slot - ("\\($(5!6!h!O(B\\)" "$(5!6"q(B") ; Post "r" - ("\\($(5!6!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"6(B") ; Half Form - ("\\($(5!7!h!3!h!B!h!M(B\\)" "$(5$0(B" sanskrit) - ("\\($(5!7!h!3!h!V!h!T(B\\)" "$(5$1(B" sanskrit) - ("\\($(5!7!h!3!h!B(B\\)" "$(5$2(B" sanskrit) - ("\\($(5!7!h!3!h!V(B\\)" "$(5$3(B" sanskrit) - ("\\($(5!7!h!3!h!O(B\\)" "$(5$9"q(B") ; Special Rule. May be precomposed font needed. - ("\\($(5!7!h!6!h!O(B\\)" "$(5$4(B" sanskrit) - ("\\($(5!7!h!3!h!M(B\\)" "$(5$5(B" sanskrit) - ("\\($(5!7!h!4!h!M(B\\)" "$(5$6(B" sanskrit) - ("\\($(5!7!h!5!h!M(B\\)" "$(5$7(B" sanskrit) - ("\\($(5!7!h!6!h!M(B\\)" "$(5$8(B" sanskrit) - ("\\($(5!7!h!3(B\\)" "$(5$9(B") - ("\\($(5!7!h!4(B\\)" "$(5$:(B") - ("\\($(5!7!h!5!h!O(B\\)" "$(5$;"q(B") ; Special Rule. May be precomposed font needed. - ("\\($(5!7!h!5(B\\)" "$(5$;(B") - ("\\($(5!7!h!6(B\\)" "$(5$<(B") - ("\\($(5!7!h!7(B\\)" "$(5$=(B") - ("\\($(5!7!h!F(B\\)" "$(5$>(B") - ("\\($(5!7!h!L(B\\)" "$(5$?(B") - ("\\($(5!7!h!M(B\\)" "$(5$@(B") - ("\\($(5!8!h(B\\)[$(5!8!<(B]$(5!h(B" "$(5"8(B") ; Half Form - ("\\($(5!8!h!8(B\\)" "$(5$A(B") - ("\\($(5!8!h!<(B\\)" "$(5$B(B") - ("\\($(5!8!h!O!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8"q(B") ; Half Form Post "r" - ("\\($(5!8!h!O(B\\)" "$(5!8"q(B") ; Post "r" - ("\\($(5!8!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"8(B") ; Half Form - ("\\($(5!9!h!M(B\\)" "$(5$C(B") - ("\\($(5!:!h!O(B\\)" "$(5$D(B") - ("\\($(5!:!h!<!h(B\\)[$(5!3(B-$(5!N!P(B-$(5!X(B]" "$(5"m(B") ; Half Form - ("\\($(5!:!h!<(B\\)" "$(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") +;; 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") + ("$,16@(B" . "$,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" . "") ) - "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) - "Return the maximum length of text that can match the pattern REGEXP. -Only [...] pattern of regexp is recognized." - (let ((len 0) - (index 0)) - (while (string-match "\\[\\([^\]]\\)+\\]" regexp index) - (setq len (+ len (- (match-beginning 0) index) 1) - index (match-end 0))) - len)) - -;; Return t iff at least one member appears in both LIST1 and LIST2. -(defun intersecting-p (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 (source symbol &rest specs) - "Convert string SOURCE by rules stored in SYMBOL property of each character. -The remaining arguments forms a list SPECS that restricts applicable rules. - -The rules has the form ((REGEXP STR RULE-SPEC ...) ...). -Each character sequence in STRING that matches REGEXP is -replaced by STR. - -If SPECS is nil, only rules with no RULE-SPECs is applied. Otherwise -rules with no RULE-SPECS and rules that have at least one member of -SPECS in RULE-SPECs is applied. - -Rules are tested in the order of the list, thus more specific rules -should be placed in front of less specific rules. - -If rule is given in the forms of regexp '...\\(...\\)...', a character -sequence that matches the pattern inside of 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 source)) - (let ((found nil) - (rules (get-char-code-property - (string-to-char - (substring source 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) - (intersecting-p 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 source 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 source pos (1+ pos))) - pos (1+ pos))))) - dst-str)) - - -;; -;; Convert Character Code to Glyph Code -;; - -;;;###autoload -(defun char-to-glyph-devanagari (string &rest langs) - "Convert Devanagari characters in STRING to Devanagari glyphs. -Ligatures and special rules are processed." - (apply - 'string-conversion-by-rule - (append (list string '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#~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`(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) + "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 (makehash 'equal))) + (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) + dev-char-glyph) + hash)) + +(defvar dev-char-glyph-regexp + (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" . "$,4"=(B") + ("\$,4"@(B\$,4"&(B" . "\$,4"A(B") + ("\$,4"@(B\$,4"'(B" . "\$,4"B(B") + ("\$,4"@(B\$,4"'(B\$,4"&(B" . "\$,4"C(B") + ("\$,4"D(B\$,4"&(B" . "\$,4"E(B") + ("\$,4"D(B\$,4"'(B" . "\$,4"F(B") + ("\$,4"D(B\$,4"'(B\$,4"&(B" . "\$,4"G(B") + ("\$,4"H(B\$,4"&(B" . "\$,4"I(B") + ("\$,4"H(B\$,4"'(B" . "\$,4"J(B") + ("\$,4"H(B\$,4"'(B\$,4"&(B" . "\$,4"K(B") + ("\$,4"L(B\$,4"&(B" . "\$,4"M(B") + ("\$,4"L(B\$,4"'(B" . "\$,4"N(B") + ("\$,4"L(B\$,4"'(B\$,4"&(B" . "\$,4"O(B") )) +(defvar dev-glyph-glyph-hash + (let* ((hash (makehash 'equal))) + (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) + dev-glyph-glyph) + hash)) +(defvar dev-glyph-glyph-regexp + (regexp-of-hashtbl-keys dev-glyph-glyph-hash)) + + +;; yet another glyph-to-glyph conversions. +(defvar dev-glyph-glyph-2 + '(("$,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 (makehash 'equal))) + (mapc (function (lambda (x) (puthash (car x) (cdr x) hash))) + dev-glyph-glyph-2) + hash)) +(defvar dev-glyph-glyph-2-regexp + (regexp-of-hashtbl-keys dev-glyph-glyph-2-hash)) + + +(defun dev-charseq (from &optional to) + (if (null to) (setq to from)) + (mapcar (function (lambda (x) (indian-glyph-char x 'devanagari))) + (range from 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 #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))) -;; Determine composition priority and rule of the array of Glyphs. -;; Sort the glyphs with their priority. - -(defun devanagari-reorder-glyphs-for-composition (string start end) - (let ((pos start) - (ordered-glyphs nil)) - (while (< pos end) - (let ((glyph (aref string 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 "$(5"5!X![(B") => "4$(6!Xv#"5t%![0!X"5![1(B" - -(defun devanagari-compose-to-one-glyph (devanagari-string) - (let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition - devanagari-string 0 (length 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)))) - -(defun devanagari-composition-component (string &optional start end) - (or start (setq start 0)) - (or end (setq end (length string))) - (let* ((o-glyph-list (devanagari-reorder-glyphs-for-composition - string start end)) - ;; List of glyphs to be composed. - (cmp-glyph-list (list (car (car o-glyph-list))))) - (setq 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)))) - ;; Convert glyphs to 1-column width if possible. - (devanagari-wide-to-narrow cmp-glyph-list))) - -;; Utility function for Phase 2.5 - -;; Check whether 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. -(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]")) - "[$(5![(B]")) - -(defun devanagari-wide-to-narrow-char (char) - "Convert Devanagari character CHAR to the corresponding narrow character. -If there's no corresponding narrow character, return CHAR as is." - (let ((narrow (cdr (assq char devanagari-1-column-char)))) - (or narrow char))) - -;; -;; Phase 2.5 Convert appropriate character to 1-column shape. -;; -;; This is temporary and should be removed out when Emacs supports -;; variable width characters. -;; -;; This will convert the composing glyphs (2 column glyphs) -;; to narrow (1 column) glyphs if they exist. -;; -;; devanagari-wide-to-narrow-old converts glyphs simply. -;; devanagari-wide-to-narrow takes care of upper/lower apply-glyphs -;; with 2 column base-glyph. -;; -;; Execution Examples -;;(devanagari-wide-to-narrow '(?$(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 sequence. -;; - -;;;###autoload -(defun devanagari-decompose-string (str) - "Decompose Devanagari string STR" - (decompose-string (copy-sequence str))) - -;;;###autoload -(defun devanagari-decompose-region (from to) - (interactive "r") - (decompose-region from to)) - -;;; -;;; Composition -;;; - -;;;###autoload -(defun devanagari-compose-string (str &rest langs) - (setq str (copy-sequence str)) - (let ((idx 0) - rest match-b match-e) - (while (string-match devanagari-composite-glyph-unit str idx) - (let* ((match-b (match-beginning 0)) - (match-e (match-end 0)) - (cmps (devanagari-composition-component - (apply - 'char-to-glyph-devanagari - (cons (substring str match-b match-e) langs))))) - (compose-string str match-b match-e cmps) - (setq idx match-e)))) - str) - -;;;###autoload -(defun devanagari-compose-region (from to &rest langs) - (interactive "r") - (save-excursion - (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-composition-component - (apply - 'char-to-glyph-devanagari - (cons (buffer-substring match-b match-e) langs))))) - (compose-region match-b match-e 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))) - (devanagari-compose-from-is13194-region pos (+ pos len)))) - -;;;###autoload -(defun devanagari-decompose-to-is13194-region (from to) - "Decompose Devanagari characters in the region to IS 13194 characters." - (interactive "r") - (save-excursion - (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))) - (set-buffer (generate-new-buffer " *temp*")) - (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)))) - -;; (provide 'devan-util) - -;; Local Variables: -;; coding: iso-2022-7bit -;; End: - -;;; devan-util.el ends here |