[bpt/emacs.git] / lisp / language / indian.el

;;; indian.el --- Indian languages support -*- coding: utf-8; -*-

;; Copyright (C) 1997, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
;;   Free Software Foundation, Inc.
;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
;;   National Institute of Advanced Industrial Science and Technology (AIST)
;;   Registration Number H14PRO021

;; Maintainer:  Kenichi Handa <handa@m17n.org>
;;		KAWABATA, Taichi <kawabata@m17n.org>
;; Keywords: 	multilingual, i18n, Indian

;; 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 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

;;; Commentary:

;; This file contains definitions of Indian language environments, and
;; setups for displaying the scrtipts used there.

;;; Code:

(define-coding-system 'in-is13194-devanagari
  "8-bit encoding for ASCII (MSB=0) and IS13194-Devanagari (MSB=1)."
  :coding-type 'iso-2022
  :mnemonic ?D
  :designation [ascii indian-is13194 nil nil]
  :charset-list '(ascii indian-is13194)
  :post-read-conversion 'in-is13194-post-read-conversion
  :pre-write-conversion 'in-is13194-pre-write-conversion)

(define-coding-system-alias 'devanagari 'in-is13194-devanagari)

(set-language-info-alist
 "Devanagari" '((charset unicode)
		(coding-system utf-8)
		(coding-priority utf-8)
		(input-method . "dev-aiba")
		(documentation . "\
Such languages using Devanagari script as Hindi and Marathi
are supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Bengali" '((charset unicode)
	     (coding-system utf-8)
	     (coding-priority utf-8)
	     (input-method . "bengali-itrans")
	     (documentation . "\
Such languages using Bengali script as Bengali and Assamese
are supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Punjabi" '((charset unicode)
	      (coding-system utf-8)
	      (coding-priority utf-8)
	      (input-method . "punjabi-itrans")
	      (documentation . "\
North Indian language Punjabi is supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Gujarati" '((charset unicode)
	      (coding-system utf-8)
	      (coding-priority utf-8)
	      (input-method . "gujarati-itrans")
	      (documentation . "\
North Indian language Gujarati is supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Oriya" '((charset unicode)
	      (coding-system utf-8)
	      (coding-priority utf-8)
	      (input-method . "oriya-itrans")
	      (documentation . "\
Such languages using Oriya script as Oriya, Khonti, and Santali
are supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Tamil" '((charset unicode)
	   (coding-system utf-8)
	   (coding-priority utf-8)
	   (input-method . "tamil-itrans")
	   (documentation . "\
South Indian Language Tamil is supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Telugu" '((charset unicode)
	    (coding-system utf-8)
	    (coding-priority utf-8)
	    (input-method . "telugu-itrans")
	    (documentation . "\
South Indian Language Telugu is supported in this language environment."))
 '("Indian"))

(set-language-info-alist
 "Kannada" '((charset unicode)
	     (coding-system mule-utf-8)
	     (coding-priority mule-utf-8)
	     (input-method . "kannada-itrans")
	     (sample-text . "Kannada (ಕನ್ನಡ)	ನಮಸ್ಕಾರ")
	     (documentation . "\
Kannada language and script is supported in this language
environment.")) 
 '("Indian"))

(set-language-info-alist
 "Malayalam" '((charset unicode)
	       (coding-system utf-8)
	       (coding-priority utf-8)
	       (input-method . "malayalam-itrans")
	       (documentation . "\
South Indian language Malayalam is supported in this language environment."))
 '("Indian"))

;; Replace mnemonic characters in REGEXP according to TABLE.  TABLE is
;; an alist of (MNEMONIC-STRING . REPLACEMENT-STRING).

(defun indian-compose-regexp (regexp table)
  (let ((case-fold-search nil))
    (dolist (elt table)
      (setq regexp (replace-regexp-in-string (car elt) (cdr elt) regexp t t)))
    regexp))

(defconst devanagari-composable-pattern
  (let ((table
	 '(("a" . "[\u0900-\u0902]")	; vowel modifier (above)
	   ("A" . "\u0903")		; vowel modifier (post) 
	   ("V" . "[\u0904-\u0914\u0960-\u0961\u0972]") ; independent vowel
	   ("C" . "[\u0915-\u0939\u0958-\u095F\u0979-\u097F]") ; consonant
	   ("R" . "\u0930")		; RA
	   ("n" . "\u093C")		; NUKTA
	   ("v" . "[\u093E-\u094C\u094E\u0955\u0962-\u0963]") ; vowel sign
	   ("H" . "\u094D")		; HALANT
	   ("s" . "[\u0951-\u0952]")	; stress sign
	   ("t" . "[\u0953-\u0954]")	; accent
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0900-\u097F]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; syllables with an independent vowel, or
      "\\(?:RH\\)?Vn?\\(?:J?HR\\)?v*n?a?s?t?A?\\|"
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*n?a?s?t?A?\\)\\|"
      ;; special consonant form, or
      "JHR\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Devanagari characters.")

(defconst bengali-composable-pattern
  (let ((table
	 '(("a" . "\u0981")		; SIGN CANDRABINDU
	   ("A" . "[\u0982-\u0983]")	; SIGN ANUSVARA .. VISARGA
	   ("V" . "[\u0985-\u0994\u09E0-\u09E1]") ; independent vowel
	   ("C" . "[\u0995-\u09B9\u09DC-\u09DF\u09F1]") ; consonant
	   ("B" . "[\u09AC\u09AF-\u09B0\u09F0]")		; BA, YA, RA
	   ("R" . "[\u09B0\u09F0]")		; RA
	   ("n" . "\u09BC")		; NUKTA
	   ("v" . "[\u09BE-\u09CC\u09D7\u09E2-\u09E3]") ; vowel sign
	   ("H" . "\u09CD")		; HALANT
	   ("T" . "\u09CE")		; KHANDA TA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0980-\u09FF]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; syllables with an independent vowel, or
      "\\(?:RH\\)?Vn?\\(?:J?HB\\)?v*n?a?A?\\|"
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*[NJ]?v?a?A?\\)\\|"
      ;; another syllables with an independent vowel, or
      "\\(?:RH\\)?T\\|"
      ;; special consonant form, or
      "JHB\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Bengali characters.")

(defconst gurmukhi-composable-pattern
  (let ((table
	 '(("a" . "[\u0A01-\u0A02\u0A70]") ; SIGN ADAK BINDI .. BINDI, TIPPI
	   ("A" . "\u0A03")		; SIGN VISARGA
	   ("V" . "[\u0A05-\u0A14]")	; independent vowel
	   ("C" . "[\u0A15-\u0A39\u0A59-\u0A5E]")	; consonant
	   ("Y" . "[\u0A2F-u0A30\u0A35\u0A39]") ; YA, RA, VA, HA
	   ("n" . "\u0A3C")		; NUKTA
	   ("v" . "[\u0A3E-\u0A4C]")	; vowel sign
	   ("H" . "\u0A4D")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0A00-\u0A7F]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*n?a?A?\\)\\|"
      ;; syllables with an independent vowel, or
      "Vn?\\(?:J?HY\\)?v*n?a?A?\\|"
      ;; special consonant form, or
      "JHY\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Gurmukhi characters.")

(defconst gujarati-composable-pattern
  (let ((table
	 '(("a" . "[\u0A81-\u0A82]")	; SIGN CANDRABINDU .. ANUSVARA
	   ("A" . "\u0A83")		; SIGN VISARGA
	   ("V" . "[\u0A85-\u0A94\u0AE0-\u0AE1]") ; independent vowel
	   ("C" . "[\u0A95-\u0AB9]")	; consonant
	   ("R" . "\u0AB0")		; RA
	   ("n" . "\u0ABC")		; NUKTA
	   ("v" . "[\u0ABE-\u0ACC\u0AE2-\u0AE3]") ; vowel sign
	   ("H" . "\u0ACD")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0A80-\u0AFF]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; syllables with an independent vowel, or
      "\\(?:RH\\)?Vn?\\(?:J?HR\\)?v*n?a?A?\\|"
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*n?a?A?\\)\\|"
      ;; special consonant form, or
      "JHR\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Gujarati characters.")

(defconst oriya-composable-pattern
  (let ((table
	 '(("a" . "\u0B01")		; SIGN CANDRABINDU
	   ("A" . "[\u0B02-\u0B03]")	; SIGN ANUSVARA .. VISARGA
	   ("V" . "[\u0B05-\u0B14\u0B60-\u0B61]") ; independent vowel
	   ("C" . "[\u0B15-\u0B39\u0B5C-\u0B5D\u0B71]")	; consonant
	   ("B" . "[\u0B15-\u0B17\u0B1B-\u0B1D\u0B1F-\u0B21\u0B23-\u0B24\u0B27-\u0B30\u0B32-\u0B35\u0B38-\u0B39]") ; consonant with below form
	   ("R" . "\u0B30")		; RA
	   ("n" . "\u0B3C")		; NUKTA
	   ("v" . "[\u0B3E-\u0B4C\u0B56-\u0B57\u0B62-\u0B63]") ; vowel sign
	   ("H" . "\u0B4D")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0B00-\u0B7F]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; syllables with an independent vowel, or
      "\\(?:RH\\)?Vn?\\(?:J?HB\\)?v*n?a?A?\\|"
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*n?a?A?\\)\\|"
      ;; special consonant form, or
      "JHB\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Oriya characters.")

(defconst tamil-composable-pattern
  (let ((table
	 '(("a" . "\u0B82")		; SIGN ANUSVARA
	   ("V" . "[\u0B85-\u0B94]")	; independent vowel
	   ("C" . "[\u0B95-\u0BB9]")	; consonant
	   ("v" . "[\u0BBE-\u0BCC\u0BD7]") ; vowel sign
	   ("H" . "\u0BCD")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0B80-\u0BFF]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; consonant-based syllables, or
      "C\\(?:J?HJ?C\\)*\\(?:H[NJ]?\\|v*a?\\)\\|"
      ;; syllables with an independent vowel, or
      "Vv*a?\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Tamil characters.")

(defconst telugu-composable-pattern
  (let ((table
	 '(("a" . "[\u0C01-\u0C03]")	; SIGN CANDRABINDU .. VISARGA
	   ("V" . "[\u0C05-\u0C14\u0C60-\u0C61]") ; independent vowel
	   ("C" . "[\u0C15-\u0C39\u0C58-\u0C59]") ; consonant
	   ("v" . "[\u0C3E-\u0C4C\u0C55-\u0C56\u0C62-\u0C63]")	; vowel sign
	   ("H" . "\u0C4D")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0C00-\u0C7F]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; consonant-based syllables, or
      "C\\(?:J?HJ?C\\)*\\(?:H[NJ]?\\|v*a?\\)\\|"
      ;; syllables with an independent vowel, or
      "V\\(?:J?HC\\)?v*a?\\|"
      ;; special consonant form, or
      "JHC\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Telugu characters.")

(defconst kannada-composable-pattern
  (let ((table
	 '(("A" . "[\u0C82-\u0C83]")	; SIGN ANUSVARA .. VISARGA
	   ("V" . "[\u0C85-\u0C94\u0CE0-\u0CE1]") ; independent vowel
	   ("C" . "[\u0C95-\u0CB9\u0CDE]")	  ; consonant
	   ("R" . "\u0CB0")		; RA
	   ("n" . "\u0CBC")		; NUKTA
	   ("v" . "[\u0CBE-\u0CCC\u0CD5-\u0CD6\u0CE2-\u0CE3]") ; vowel sign
	   ("H" . "\u0CCD")		; VIRAMA
	   ("N" . "\u200C")		; ZWNJ
	   ("J" . "\u200D")		; ZWJ
	   ("X" . "[\u0C80-\u0CFF]"))))	; all coverage
    (indian-compose-regexp
     (concat
      ;; syllables with an independent vowel, or
      "\\(?:RH\\)?Vn?\\(?:J?HC\\)?v?A?\\|"
      ;; consonant-based syllables, or
      "Cn?\\(?:J?HJ?Cn?\\)*\\(?:H[NJ]?\\|v*n?A?\\)\\|"
      ;; special consonant form, or
      "JHC\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Kannada characters.")

(defconst malayalam-composable-pattern
  (let ((table
	 '(("A" . "[\u0D02-\u0D03]")	; SIGN ANUSVARA .. VISARGA
	   ("V" . "[\u0D05-\u0D14\u0D60-\u0D61]") ; independent vowel
	   ("C" . "[\u0D15-\u0D39]")		  ; consonant 
	   ("Y" . "[\u0D2F-\u0D30\u0D32\u0D35]")  ; YA, RA, LA, VA
	   ("v" . "[\u0D3E-\u0D4C\u0D57\u0D62-\u0D63]")	; postbase matra
	   ("H" . "\u0D4D")			  ; SIGN VIRAMA
	   ("N" . "\u200C")			  ; ZWNJ
	   ("J" . "\u200D")			  ; ZWJ
	   ("X" . "[\u0D00-\u0D7F]"))))		  ; all coverage
    (indian-compose-regexp
     (concat
      ;; consonant-based syllables, or
      "C\\(?:J?HJ?C\\)*\\(?:H[NJ]?\\|v?A?\\)\\|"
      ;; syllables with an independent vowel, or
      "V\\(?:J?HY\\)?v*?A?\\|"
      ;; special consonant form, or
      "JHY\\|"
      ;; any other singleton characters
      "X")
     table))
  "Regexp matching a composable sequence of Malayalam characters.")

(let ((script-regexp-alist
       `((devanagari . ,devanagari-composable-pattern)
	 (bengali . ,bengali-composable-pattern)
	 (gurmukhi . ,gurmukhi-composable-pattern)
	 (gujarati . ,gujarati-composable-pattern)
	 (oriya . ,oriya-composable-pattern)
	 (tamil . ,tamil-composable-pattern)
	 (telugu . ,telugu-composable-pattern)
	 (kannada . ,kannada-composable-pattern)
	 (malayalam . ,malayalam-composable-pattern))))
  (map-char-table
   #'(lambda (key val)
       (let ((slot (assq val script-regexp-alist)))
	 (if slot
	     (set-char-table-range
	      composition-function-table key
	      (list (vector (cdr slot) 0 'font-shape-gstring))))))
   char-script-table))

(provide 'indian)

;; arch-tag: 83aa8fc7-7ee2-4364-a6e5-498f5e3b8c2f
;;; indian.el ends here
Commit	Line	Data
cdbe6a03	1	;;; indian.el --- Indian languages support -- coding: utf-8; --
4ed46869	2
114f9c96	3	;; Copyright (C) 1997, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
d4877ac1	4	;; Free Software Foundation, Inc.
114f9c96	5	;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
eaa61218 KH	6	;; National Institute of Advanced Industrial Science and Technology (AIST)
eaa61218 KH	7	;; Registration Number H14PRO021
4ed46869	8
cdbe6a03 KH	9	;; Maintainer: Kenichi Handa <handa@m17n.org>
cdbe6a03 KH	10	;; KAWABATA, Taichi <kawabata@m17n.org>
51896ebc	11	;; Keywords: multilingual, i18n, Indian
4ed46869 KH	12
	13	;; This file is part of GNU Emacs.
	14
4936186e	15	;; GNU Emacs is free software: you can redistribute it and/or modify
4ed46869	16	;; it under the terms of the GNU General Public License as published by
4936186e GM	17	;; the Free Software Foundation, either version 3 of the License, or
4936186e GM	18	;; (at your option) any later version.
4ed46869 KH	19
	20	;; GNU Emacs is distributed in the hope that it will be useful,
	21	;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	22	;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	23	;; GNU General Public License for more details.
	24
	25	;; You should have received a copy of the GNU General Public License
4936186e	26	;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
4ed46869 KH	27
	28	;;; Commentary:
	29
cdbe6a03 KH	30	;; This file contains definitions of Indian language environments, and
cdbe6a03 KH	31	;; setups for displaying the scrtipts used there.
4ed46869 KH	32
	33	;;; Code:
	34
e1915ab3 KH	35	(define-coding-system 'in-is13194-devanagari
	36	"8-bit encoding for ASCII (MSB=0) and IS13194-Devanagari (MSB=1)."
	37	:coding-type 'iso-2022
	38	:mnemonic ?D
	39	:designation [ascii indian-is13194 nil nil]
	40	:charset-list '(ascii indian-is13194)
5e145d59 KH	41	:post-read-conversion 'in-is13194-post-read-conversion
5e145d59 KH	42	:pre-write-conversion 'in-is13194-pre-write-conversion)
e1915ab3 KH	43
e1915ab3 KH	44	(define-coding-system-alias 'devanagari 'in-is13194-devanagari)
8805e649	45
cdbe6a03 KH	46	(set-language-info-alist
	47	"Devanagari" '((charset unicode)
	48	(coding-system utf-8)
	49	(coding-priority utf-8)
	50	(input-method . "dev-aiba")
	51	(documentation . "\
	52	Such languages using Devanagari script as Hindi and Marathi
	53	are supported in this language environment."))
	54	'("Indian"))
	55
	56	(set-language-info-alist
	57	"Bengali" '((charset unicode)
	58	(coding-system utf-8)
	59	(coding-priority utf-8)
	60	(input-method . "bengali-itrans")
	61	(documentation . "\
	62	Such languages using Bengali script as Bengali and Assamese
	63	are supported in this language environment."))
	64	'("Indian"))
	65
	66	(set-language-info-alist
	67	"Punjabi" '((charset unicode)
	68	(coding-system utf-8)
	69	(coding-priority utf-8)
	70	(input-method . "punjabi-itrans")
	71	(documentation . "\
	72	North Indian language Punjabi is supported in this language environment."))
	73	'("Indian"))
	74
	75	(set-language-info-alist
	76	"Gujarati" '((charset unicode)
	77	(coding-system utf-8)
	78	(coding-priority utf-8)
	79	(input-method . "gujarati-itrans")
	80	(documentation . "\
	81	North Indian language Gujarati is supported in this language environment."))
	82	'("Indian"))
	83
	84	(set-language-info-alist
	85	"Oriya" '((charset unicode)
	86	(coding-system utf-8)
	87	(coding-priority utf-8)
	88	(input-method . "oriya-itrans")
	89	(documentation . "\
	90	Such languages using Oriya script as Oriya, Khonti, and Santali
	91	are supported in this language environment."))
	92	'("Indian"))
	93
	94	(set-language-info-alist
	95	"Tamil" '((charset unicode)
	96	(coding-system utf-8)
	97	(coding-priority utf-8)
	98	(input-method . "tamil-itrans")
	99	(documentation . "\
	100	South Indian Language Tamil is supported in this language environment."))
	101	'("Indian"))
	102
	103	(set-language-info-alist
	104	"Telugu" '((charset unicode)
	105	(coding-system utf-8)
	106	(coding-priority utf-8)
	107	(input-method . "telugu-itrans")
	108	(documentation . "\
	109	South Indian Language Telugu is supported in this language environment."))
110	'("Indian"))
111
112	(set-language-info-alist
113	"Kannada" '((charset unicode)
114	(coding-system mule-utf-8)
115	(coding-priority mule-utf-8)
116	(input-method . "kannada-itrans")
117	(sample-text . "Kannada (ಕನ್ನಡ) ನಮಸ್ಕಾರ")
118	(documentation . "\
119	Kannada language and script is supported in this language
120	environment."))
121	'("Indian"))
122
123	(set-language-info-alist
124	"Malayalam" '((charset unicode)
125	(coding-system utf-8)
126	(coding-priority utf-8)
127	(input-method . "malayalam-itrans")
128	(documentation . "\
129	South Indian language Malayalam is supported in this language environment."))
130	'("Indian"))
098d86d5	131
3ff3655c KH	132	;; Replace mnemonic characters in REGEXP according to TABLE. TABLE is
	133	;; an alist of (MNEMONIC-STRING . REPLACEMENT-STRING).
	134
	135	(defun indian-compose-regexp (regexp table)
	136	(let ((case-fold-search nil))
	137	(dolist (elt table)
	138	(setq regexp (replace-regexp-in-string (car elt) (cdr elt) regexp t t)))
	139	regexp))
	140
ef19e2f3	141	(defconst devanagari-composable-pattern
f758cd2a	142	(let ((table
42763dda KH	143	'(("a" . "[\u0900-\u0902]") ; vowel modifier (above)
	144	("A" . "\u0903") ; vowel modifier (post)
	145	("V" . "[\u0904-\u0914\u0960-\u0961\u0972]") ; independent vowel
	146	("C" . "[\u0915-\u0939\u0958-\u095F\u0979-\u097F]") ; consonant
	147	("R" . "\u0930") ; RA
	148	("n" . "\u093C") ; NUKTA
	149	("v" . "[\u093E-\u094C\u094E\u0955\u0962-\u0963]") ; vowel sign
	150	("H" . "\u094D") ; HALANT
	151	("s" . "[\u0951-\u0952]") ; stress sign
	152	("t" . "[\u0953-\u0954]") ; accent
	153	("N" . "\u200C") ; ZWNJ
	154	("J" . "\u200D") ; ZWJ
	155	("X" . "[\u0900-\u097F]")))) ; all coverage
f758cd2a KH	156	(indian-compose-regexp
	157	(concat
	158	;; syllables with an independent vowel, or
42763dda	159	"\\(?:RH\\)?Vn?\\(?:J?HR\\)?v*n?a?s?t?A?\\\|"
f758cd2a	160	;; consonant-based syllables, or
42763dda	161	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|vn?a?s?t?A?\\)\\\|"
f758cd2a KH	162	;; special consonant form, or
	163	"JHR\\\|"
	164	;; any other singleton characters
	165	"X")
	166	table))
ef19e2f3 KH	167	"Regexp matching a composable sequence of Devanagari characters.")
ef19e2f3 KH	168
42763dda KH	169	(defconst bengali-composable-pattern
	170	(let ((table
	171	'(("a" . "\u0981") ; SIGN CANDRABINDU
	172	("A" . "[\u0982-\u0983]") ; SIGN ANUSVARA .. VISARGA
	173	("V" . "[\u0985-\u0994\u09E0-\u09E1]") ; independent vowel
	174	("C" . "[\u0995-\u09B9\u09DC-\u09DF\u09F1]") ; consonant
	175	("B" . "[\u09AC\u09AF-\u09B0\u09F0]") ; BA, YA, RA
	176	("R" . "[\u09B0\u09F0]") ; RA
	177	("n" . "\u09BC") ; NUKTA
	178	("v" . "[\u09BE-\u09CC\u09D7\u09E2-\u09E3]") ; vowel sign
	179	("H" . "\u09CD") ; HALANT
	180	("T" . "\u09CE") ; KHANDA TA
	181	("N" . "\u200C") ; ZWNJ
	182	("J" . "\u200D") ; ZWJ
	183	("X" . "[\u0980-\u09FF]")))) ; all coverage
	184	(indian-compose-regexp
	185	(concat
	186	;; syllables with an independent vowel, or
	187	"\\(?:RH\\)?Vn?\\(?:J?HB\\)?v*n?a?A?\\\|"
	188	;; consonant-based syllables, or
	189	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|v[NJ]?v?a?A?\\)\\\|"
	190	;; another syllables with an independent vowel, or
	191	"\\(?:RH\\)?T\\\|"
	192	;; special consonant form, or
	193	"JHB\\\|"
	194	;; any other singleton characters
	195	"X")
	196	table))
	197	"Regexp matching a composable sequence of Bengali characters.")
	198
	199	(defconst gurmukhi-composable-pattern
	200	(let ((table
ece33a6e KH	201	'(("a" . "[\u0A01-\u0A02\u0A70]") ; SIGN ADAK BINDI .. BINDI, TIPPI
ece33a6e KH	202	("A" . "\u0A03") ; SIGN VISARGA
42763dda KH	203	("V" . "[\u0A05-\u0A14]") ; independent vowel
42763dda KH	204	("C" . "[\u0A15-\u0A39\u0A59-\u0A5E]") ; consonant
ece33a6e	205	("Y" . "[\u0A2F-u0A30\u0A35\u0A39]") ; YA, RA, VA, HA
42763dda KH	206	("n" . "\u0A3C") ; NUKTA
	207	("v" . "[\u0A3E-\u0A4C]") ; vowel sign
	208	("H" . "\u0A4D") ; VIRAMA
42763dda KH	209	("N" . "\u200C") ; ZWNJ
	210	("J" . "\u200D") ; ZWJ
	211	("X" . "[\u0A00-\u0A7F]")))) ; all coverage
	212	(indian-compose-regexp
	213	(concat
	214	;; consonant-based syllables, or
	215	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|vn?a?A?\\)\\\|"
	216	;; syllables with an independent vowel, or
	217	"Vn?\\(?:J?HY\\)?v*n?a?A?\\\|"
	218	;; special consonant form, or
	219	"JHY\\\|"
	220	;; any other singleton characters
	221	"X")
	222	table))
	223	"Regexp matching a composable sequence of Gurmukhi characters.")
	224
	225	(defconst gujarati-composable-pattern
	226	(let ((table
	227	'(("a" . "[\u0A81-\u0A82]") ; SIGN CANDRABINDU .. ANUSVARA
b106e264	228	("A" . "\u0A83") ; SIGN VISARGA
42763dda KH	229	("V" . "[\u0A85-\u0A94\u0AE0-\u0AE1]") ; independent vowel
	230	("C" . "[\u0A95-\u0AB9]") ; consonant
	231	("R" . "\u0AB0") ; RA
	232	("n" . "\u0ABC") ; NUKTA
	233	("v" . "[\u0ABE-\u0ACC\u0AE2-\u0AE3]") ; vowel sign
	234	("H" . "\u0ACD") ; VIRAMA
	235	("N" . "\u200C") ; ZWNJ
	236	("J" . "\u200D") ; ZWJ
	237	("X" . "[\u0A80-\u0AFF]")))) ; all coverage
	238	(indian-compose-regexp
	239	(concat
	240	;; syllables with an independent vowel, or
	241	"\\(?:RH\\)?Vn?\\(?:J?HR\\)?v*n?a?A?\\\|"
	242	;; consonant-based syllables, or
86a366f4	243	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|vn?a?A?\\)\\\|"
42763dda KH	244	;; special consonant form, or
	245	"JHR\\\|"
	246	;; any other singleton characters
	247	"X")
	248	table))
	249	"Regexp matching a composable sequence of Gujarati characters.")
	250
	251	(defconst oriya-composable-pattern
	252	(let ((table
	253	'(("a" . "\u0B01") ; SIGN CANDRABINDU
	254	("A" . "[\u0B02-\u0B03]") ; SIGN ANUSVARA .. VISARGA
	255	("V" . "[\u0B05-\u0B14\u0B60-\u0B61]") ; independent vowel
	256	("C" . "[\u0B15-\u0B39\u0B5C-\u0B5D\u0B71]") ; consonant
	257	("B" . "[\u0B15-\u0B17\u0B1B-\u0B1D\u0B1F-\u0B21\u0B23-\u0B24\u0B27-\u0B30\u0B32-\u0B35\u0B38-\u0B39]") ; consonant with below form
86a366f4	258	("R" . "\u0B30") ; RA
42763dda	259	("n" . "\u0B3C") ; NUKTA
771533aa	260	("v" . "[\u0B3E-\u0B4C\u0B56-\u0B57\u0B62-\u0B63]") ; vowel sign
42763dda KH	261	("H" . "\u0B4D") ; VIRAMA
	262	("N" . "\u200C") ; ZWNJ
	263	("J" . "\u200D") ; ZWJ
	264	("X" . "[\u0B00-\u0B7F]")))) ; all coverage
	265	(indian-compose-regexp
	266	(concat
	267	;; syllables with an independent vowel, or
	268	"\\(?:RH\\)?Vn?\\(?:J?HB\\)?v*n?a?A?\\\|"
	269	;; consonant-based syllables, or
86a366f4	270	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|vn?a?A?\\)\\\|"
42763dda KH	271	;; special consonant form, or
	272	"JHB\\\|"
	273	;; any other singleton characters
	274	"X")
	275	table))
	276	"Regexp matching a composable sequence of Oriya characters.")
	277
ef19e2f3	278	(defconst tamil-composable-pattern
42763dda KH	279	(let ((table
	280	'(("a" . "\u0B82") ; SIGN ANUSVARA
	281	("V" . "[\u0B85-\u0B94]") ; independent vowel
	282	("C" . "[\u0B95-\u0BB9]") ; consonant
771533aa	283	("v" . "[\u0BBE-\u0BCC\u0BD7]") ; vowel sign
42763dda KH	284	("H" . "\u0BCD") ; VIRAMA
	285	("N" . "\u200C") ; ZWNJ
	286	("J" . "\u200D") ; ZWJ
	287	("X" . "[\u0B80-\u0BFF]")))) ; all coverage
	288	(indian-compose-regexp
	289	(concat
	290	;; consonant-based syllables, or
86a366f4	291	"C\\(?:J?HJ?C\\)\\(?:H[NJ]?\\\|va?\\)\\\|"
42763dda KH	292	;; syllables with an independent vowel, or
	293	"Vv*a?\\\|"
	294	;; any other singleton characters
	295	"X")
	296	table))
ef19e2f3 KH	297	"Regexp matching a composable sequence of Tamil characters.")
ef19e2f3 KH	298
42763dda KH	299	(defconst telugu-composable-pattern
	300	(let ((table
	301	'(("a" . "[\u0C01-\u0C03]") ; SIGN CANDRABINDU .. VISARGA
	302	("V" . "[\u0C05-\u0C14\u0C60-\u0C61]") ; independent vowel
	303	("C" . "[\u0C15-\u0C39\u0C58-\u0C59]") ; consonant
	304	("v" . "[\u0C3E-\u0C4C\u0C55-\u0C56\u0C62-\u0C63]") ; vowel sign
86a366f4	305	("H" . "\u0C4D") ; VIRAMA
42763dda KH	306	("N" . "\u200C") ; ZWNJ
	307	("J" . "\u200D") ; ZWJ
	308	("X" . "[\u0C00-\u0C7F]")))) ; all coverage
	309	(indian-compose-regexp
	310	(concat
	311	;; consonant-based syllables, or
86a366f4	312	"C\\(?:J?HJ?C\\)\\(?:H[NJ]?\\\|va?\\)\\\|"
42763dda KH	313	;; syllables with an independent vowel, or
	314	"V\\(?:J?HC\\)?v*a?\\\|"
	315	;; special consonant form, or
	316	"JHC\\\|"
	317	;; any other singleton characters
	318	"X")
	319	table))
	320	"Regexp matching a composable sequence of Telugu characters.")
	321
ef19e2f3	322	(defconst kannada-composable-pattern
42763dda KH	323	(let ((table
	324	'(("A" . "[\u0C82-\u0C83]") ; SIGN ANUSVARA .. VISARGA
	325	("V" . "[\u0C85-\u0C94\u0CE0-\u0CE1]") ; independent vowel
	326	("C" . "[\u0C95-\u0CB9\u0CDE]") ; consonant
86a366f4	327	("R" . "\u0CB0") ; RA
42763dda KH	328	("n" . "\u0CBC") ; NUKTA
	329	("v" . "[\u0CBE-\u0CCC\u0CD5-\u0CD6\u0CE2-\u0CE3]") ; vowel sign
	330	("H" . "\u0CCD") ; VIRAMA
	331	("N" . "\u200C") ; ZWNJ
	332	("J" . "\u200D") ; ZWJ
	333	("X" . "[\u0C80-\u0CFF]")))) ; all coverage
	334	(indian-compose-regexp
	335	(concat
	336	;; syllables with an independent vowel, or
	337	"\\(?:RH\\)?Vn?\\(?:J?HC\\)?v?A?\\\|"
	338	;; consonant-based syllables, or
86a366f4	339	"Cn?\\(?:J?HJ?Cn?\\)\\(?:H[NJ]?\\\|vn?A?\\)\\\|"
42763dda	340	;; special consonant form, or
86a366f4	341	"JHC\\\|"
42763dda KH	342	;; any other singleton characters
	343	"X")
	344	table))
ef19e2f3 KH	345	"Regexp matching a composable sequence of Kannada characters.")
	346
	347	(defconst malayalam-composable-pattern
f758cd2a	348	(let ((table
42763dda KH	349	'(("A" . "[\u0D02-\u0D03]") ; SIGN ANUSVARA .. VISARGA
42763dda KH	350	("V" . "[\u0D05-\u0D14\u0D60-\u0D61]") ; independent vowel
f758cd2a	351	("C" . "[\u0D15-\u0D39]") ; consonant
42763dda	352	("Y" . "[\u0D2F-\u0D30\u0D32\u0D35]") ; YA, RA, LA, VA
771533aa	353	("v" . "[\u0D3E-\u0D4C\u0D57\u0D62-\u0D63]") ; postbase matra
86a366f4	354	("H" . "\u0D4D") ; SIGN VIRAMA
69db641d KH	355	("N" . "\u200C") ; ZWNJ
69db641d KH	356	("J" . "\u200D") ; ZWJ
f758cd2a	357	("X" . "[\u0D00-\u0D7F]")))) ; all coverage
3ff3655c KH	358	(indian-compose-regexp
3ff3655c KH	359	(concat
f758cd2a	360	;; consonant-based syllables, or
86a366f4	361	"C\\(?:J?HJ?C\\)*\\(?:H[NJ]?\\\|v?A?\\)\\\|"
42763dda KH	362	;; syllables with an independent vowel, or
42763dda KH	363	"V\\(?:J?HY\\)?v*?A?\\\|"
f758cd2a	364	;; special consonant form, or
42763dda	365	"JHY\\\|"
3ff3655c KH	366	;; any other singleton characters
	367	"X")
	368	table))
ef19e2f3 KH	369	"Regexp matching a composable sequence of Malayalam characters.")
ef19e2f3 KH	370
9b87bff0	371	(let ((script-regexp-alist
f758cd2a	372	`((devanagari . ,devanagari-composable-pattern)
42763dda KH	373	(bengali . ,bengali-composable-pattern)
	374	(gurmukhi . ,gurmukhi-composable-pattern)
	375	(gujarati . ,gujarati-composable-pattern)
	376	(oriya . ,oriya-composable-pattern)
	377	(tamil . ,tamil-composable-pattern)
	378	(telugu . ,telugu-composable-pattern)
	379	(kannada . ,kannada-composable-pattern)
3ff3655c	380	(malayalam . ,malayalam-composable-pattern))))
ef19e2f3 KH	381	(map-char-table
	382	#'(lambda (key val)
	383	(let ((slot (assq val script-regexp-alist)))
	384	(if slot
	385	(set-char-table-range
	386	composition-function-table key
	387	(list (vector (cdr slot) 0 'font-shape-gstring))))))
	388	char-script-table))
9b87bff0	389
41da80b1	390	(provide 'indian)
1bec6fdb	391
cbee283d	392	;; arch-tag: 83aa8fc7-7ee2-4364-a6e5-498f5e3b8c2f
4ed46869	393	;;; indian.el ends here