/* Pango

 * thai-charprop.h:

 *

 * Copyright (C) 1999 Red Hat Software

 * Author: Owen Taylor <otaylor@redhat.com>

 *

 * Software and Language Engineering Laboratory, NECTEC

 * Author: Theppitak Karoonboonyanan <thep@links.nectec.or.th>

 *

 * Copyright (c) 1996-2000 by Sun Microsystems, Inc.

 * Author: Chookij Vanatham <Chookij.Vanatham@Eng.Sun.COM>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library 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

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#ifndef __THAI_CHARPROP_H__

#define __THAI_CHARPROP_H__

#include <glib.h>

#define isthai(wc)      (0x0E00 <= (wc) && (wc) < 0x0E60)

#define islao(wc)       (0x0E80 <= (wc) && (wc) < 0x0EE0)

/* ucs2tis()

 * Lao:  [0x0E80..0x0EDF] -> [0x20..0x7F]

 * Thai: [0x0E00..0x0E5F] -> [0xA0..0xFF]

 */

#define ucs2tis(wc)     (((wc) - 0x0E00 + 0x20)^0x80)

/* Define TACTIS character classes */

#define CTRL		0

#define NON		1

#define CONS		2

#define LV		3

#define FV1		4

#define FV2		5

#define FV3		6

#define AM		7

#define BV1		8

#define BV2		9

#define BD		10

#define TONE		11

#define AD1		12

#define AD2		13

#define AD3		14

#define AD4		15

#define AV1		16

#define AV2		17

#define AV3		18

#define BCON		19

#define _ND		0

#define _NC		1

#define _UC		(1<<1)

#define _BC		(1<<2)

#define _SC		(1<<3)

#define _AV		(1<<4)

#define _BV		(1<<5)

#define _TN		(1<<6)

#define _AD		(1<<7)

#define _BD		(1<<8)

#define _AM		(1<<9)

#define NoTailCons	_NC

#define UpTailCons	_UC

#define BotTailCons	_BC

#define SpltTailCons	_SC

#define Cons		(NoTailCons|UpTailCons|BotTailCons|SpltTailCons)

#define AboveVowel	_AV

#define BelowVowel	_BV

#define Tone		_TN

#define AboveDiac	_AD

#define BelowDiac	_BD

#define SaraAm		_AM

#define is_char_type(wc, mask)	(thai_char_type[ucs2tis ((wc))] & (mask))

#define TAC_char_class(wc) \

	(isthai(wc)||islao(wc) ? thai_TAC_char_class[ucs2tis (wc)] : NON)

#define TAC_compose_input(wc1,wc2) \

	thai_TAC_compose_input[TAC_char_class(wc1)][TAC_char_class(wc2)]

extern const gshort thai_char_type[256];

extern const gshort thai_TAC_char_class[256];

extern const gchar  thai_TAC_compose_input[20][20];

#endif /* __THAI_CHARPROP_H__ */