src/hb-unicode.h - third_party/harfbuzz - Git at Google

 /*
  * Copyright © 2009  Red Hat, Inc.
  * Copyright © 2011  Codethink Limited
  * Copyright © 2011,2012  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
  * all copies of this software.
  *
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  * DAMAGE.
  *
  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  *
  * Red Hat Author(s): Behdad Esfahbod
  * Codethink Author(s): Ryan Lortie
  * Google Author(s): Behdad Esfahbod
  */

 #ifndef HB_H_IN
 #error "Include <hb.h> instead."
 #endif

 #ifndef HB_UNICODE_H
 #define HB_UNICODE_H

 #include "hb-common.h"

 HB_BEGIN_DECLS


 /**
  * HB_UNICODE_MAX
  *
  * Since: 1.9.0
  **/
 #define HB_UNICODE_MAX 0x10FFFFu


 /* hb_unicode_general_category_t */

 /* Unicode Character Database property: General_Category (gc) */
 typedef enum
 {
   HB_UNICODE_GENERAL_CATEGORY_CONTROL,			/* Cc */
   HB_UNICODE_GENERAL_CATEGORY_FORMAT,			/* Cf */
   HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED,		/* Cn */
   HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE,		/* Co */
   HB_UNICODE_GENERAL_CATEGORY_SURROGATE,		/* Cs */
   HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER,		/* Ll */
   HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER,		/* Lm */
   HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER,		/* Lo */
   HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER,		/* Lt */
   HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER,		/* Lu */
   HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK,		/* Mc */
   HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK,		/* Me */
   HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK,		/* Mn */
   HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER,		/* Nd */
   HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER,		/* Nl */
   HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER,		/* No */
   HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION,	/* Pc */
   HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION,		/* Pd */
   HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION,	/* Pe */
   HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION,	/* Pf */
   HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION,	/* Pi */
   HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION,	/* Po */
   HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION,		/* Ps */
   HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL,		/* Sc */
   HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL,		/* Sk */
   HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL,		/* Sm */
   HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL,		/* So */
   HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR,		/* Zl */
   HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR,	/* Zp */
   HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR		/* Zs */
 } hb_unicode_general_category_t;

 /* hb_unicode_combining_class_t */

 /* Note: newer versions of Unicode may add new values.  Clients should be ready to handle
  * any value in the 0..254 range being returned from hb_unicode_combining_class().
  */

 /* Unicode Character Database property: Canonical_Combining_Class (ccc) */
 typedef enum
 {
   HB_UNICODE_COMBINING_CLASS_NOT_REORDERED	= 0,
   HB_UNICODE_COMBINING_CLASS_OVERLAY		= 1,
   HB_UNICODE_COMBINING_CLASS_NUKTA		= 7,
   HB_UNICODE_COMBINING_CLASS_KANA_VOICING	= 8,
   HB_UNICODE_COMBINING_CLASS_VIRAMA		= 9,

   /* Hebrew */
   HB_UNICODE_COMBINING_CLASS_CCC10	=  10,
   HB_UNICODE_COMBINING_CLASS_CCC11	=  11,
   HB_UNICODE_COMBINING_CLASS_CCC12	=  12,
   HB_UNICODE_COMBINING_CLASS_CCC13	=  13,
   HB_UNICODE_COMBINING_CLASS_CCC14	=  14,
   HB_UNICODE_COMBINING_CLASS_CCC15	=  15,
   HB_UNICODE_COMBINING_CLASS_CCC16	=  16,
   HB_UNICODE_COMBINING_CLASS_CCC17	=  17,
   HB_UNICODE_COMBINING_CLASS_CCC18	=  18,
   HB_UNICODE_COMBINING_CLASS_CCC19	=  19,
   HB_UNICODE_COMBINING_CLASS_CCC20	=  20,
   HB_UNICODE_COMBINING_CLASS_CCC21	=  21,
   HB_UNICODE_COMBINING_CLASS_CCC22	=  22,
   HB_UNICODE_COMBINING_CLASS_CCC23	=  23,
   HB_UNICODE_COMBINING_CLASS_CCC24	=  24,
   HB_UNICODE_COMBINING_CLASS_CCC25	=  25,
   HB_UNICODE_COMBINING_CLASS_CCC26	=  26,

   /* Arabic */
   HB_UNICODE_COMBINING_CLASS_CCC27	=  27,
   HB_UNICODE_COMBINING_CLASS_CCC28	=  28,
   HB_UNICODE_COMBINING_CLASS_CCC29	=  29,
   HB_UNICODE_COMBINING_CLASS_CCC30	=  30,
   HB_UNICODE_COMBINING_CLASS_CCC31	=  31,
   HB_UNICODE_COMBINING_CLASS_CCC32	=  32,
   HB_UNICODE_COMBINING_CLASS_CCC33	=  33,
   HB_UNICODE_COMBINING_CLASS_CCC34	=  34,
   HB_UNICODE_COMBINING_CLASS_CCC35	=  35,

   /* Syriac */
   HB_UNICODE_COMBINING_CLASS_CCC36	=  36,

   /* Telugu */
   HB_UNICODE_COMBINING_CLASS_CCC84	=  84,
   HB_UNICODE_COMBINING_CLASS_CCC91	=  91,

   /* Thai */
   HB_UNICODE_COMBINING_CLASS_CCC103	= 103,
   HB_UNICODE_COMBINING_CLASS_CCC107	= 107,

   /* Lao */
   HB_UNICODE_COMBINING_CLASS_CCC118	= 118,
   HB_UNICODE_COMBINING_CLASS_CCC122	= 122,

   /* Tibetan */
   HB_UNICODE_COMBINING_CLASS_CCC129	= 129,
   HB_UNICODE_COMBINING_CLASS_CCC130	= 130,
   HB_UNICODE_COMBINING_CLASS_CCC133	= 132,


   HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT	= 200,
   HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW		= 202,
   HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE		= 214,
   HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT	= 216,
   HB_UNICODE_COMBINING_CLASS_BELOW_LEFT			= 218,
   HB_UNICODE_COMBINING_CLASS_BELOW			= 220,
   HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT		= 222,
   HB_UNICODE_COMBINING_CLASS_LEFT			= 224,
   HB_UNICODE_COMBINING_CLASS_RIGHT			= 226,
   HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT			= 228,
   HB_UNICODE_COMBINING_CLASS_ABOVE			= 230,
   HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT		= 232,
   HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW		= 233,
   HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE		= 234,

   HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT		= 240,

   HB_UNICODE_COMBINING_CLASS_INVALID	= 255
 } hb_unicode_combining_class_t;


 /*
  * hb_unicode_funcs_t
  */

 typedef struct hb_unicode_funcs_t hb_unicode_funcs_t;


 /*
  * just give me the best implementation you've got there.
  */
 HB_EXTERN hb_unicode_funcs_t *
 hb_unicode_funcs_get_default (void);


 HB_EXTERN hb_unicode_funcs_t *
 hb_unicode_funcs_create (hb_unicode_funcs_t *parent);

 HB_EXTERN hb_unicode_funcs_t *
 hb_unicode_funcs_get_empty (void);

 HB_EXTERN hb_unicode_funcs_t *
 hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs);

 HB_EXTERN void
 hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs);

 HB_EXTERN hb_bool_t
 hb_unicode_funcs_set_user_data (hb_unicode_funcs_t *ufuncs,
 			        hb_user_data_key_t *key,
 			        void *              data,
 			        hb_destroy_func_t   destroy,
 				hb_bool_t           replace);


 HB_EXTERN void *
 hb_unicode_funcs_get_user_data (hb_unicode_funcs_t *ufuncs,
 			        hb_user_data_key_t *key);


 HB_EXTERN void
 hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs);

 HB_EXTERN hb_bool_t
 hb_unicode_funcs_is_immutable (hb_unicode_funcs_t *ufuncs);

 HB_EXTERN hb_unicode_funcs_t *
 hb_unicode_funcs_get_parent (hb_unicode_funcs_t *ufuncs);


 /*
  * funcs
  */

 /* typedefs */

 typedef hb_unicode_combining_class_t	(*hb_unicode_combining_class_func_t)	(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      unicode,
 										 void               *user_data);
 typedef hb_unicode_general_category_t	(*hb_unicode_general_category_func_t)	(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      unicode,
 										 void               *user_data);
 typedef hb_codepoint_t			(*hb_unicode_mirroring_func_t)		(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      unicode,
 										 void               *user_data);
 typedef hb_script_t			(*hb_unicode_script_func_t)		(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      unicode,
 										 void               *user_data);

 typedef hb_bool_t			(*hb_unicode_compose_func_t)		(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      a,
 										 hb_codepoint_t      b,
 										 hb_codepoint_t     *ab,
 										 void               *user_data);
 typedef hb_bool_t			(*hb_unicode_decompose_func_t)		(hb_unicode_funcs_t *ufuncs,
 										 hb_codepoint_t      ab,
 										 hb_codepoint_t     *a,
 										 hb_codepoint_t     *b,
 										 void               *user_data);

 /* setters */

 /**
  * hb_unicode_funcs_set_combining_class_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs,
 					   hb_unicode_combining_class_func_t func,
 					   void *user_data, hb_destroy_func_t destroy);

 /**
  * hb_unicode_funcs_set_general_category_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs,
 					    hb_unicode_general_category_func_t func,
 					    void *user_data, hb_destroy_func_t destroy);

 /**
  * hb_unicode_funcs_set_mirroring_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs,
 				     hb_unicode_mirroring_func_t func,
 				     void *user_data, hb_destroy_func_t destroy);

 /**
  * hb_unicode_funcs_set_script_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs,
 				  hb_unicode_script_func_t func,
 				  void *user_data, hb_destroy_func_t destroy);

 /**
  * hb_unicode_funcs_set_compose_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_compose_func (hb_unicode_funcs_t *ufuncs,
 				   hb_unicode_compose_func_t func,
 				   void *user_data, hb_destroy_func_t destroy);

 /**
  * hb_unicode_funcs_set_decompose_func:
  * @ufuncs: a Unicode function structure
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  *
  *
  * Since: 0.9.2
  **/
 HB_EXTERN void
 hb_unicode_funcs_set_decompose_func (hb_unicode_funcs_t *ufuncs,
 				     hb_unicode_decompose_func_t func,
 				     void *user_data, hb_destroy_func_t destroy);

 /* accessors */

 /**
  * hb_unicode_combining_class:
  *
  * Since: 0.9.2
  **/
 HB_EXTERN hb_unicode_combining_class_t
 hb_unicode_combining_class (hb_unicode_funcs_t *ufuncs,
 			    hb_codepoint_t unicode);

 /**
  * hb_unicode_general_category:
  *
  * Since: 0.9.2
  **/
 HB_EXTERN hb_unicode_general_category_t
 hb_unicode_general_category (hb_unicode_funcs_t *ufuncs,
 			     hb_codepoint_t unicode);

 /**
  * hb_unicode_mirroring:
  *
  * Since: 0.9.2
  **/
 HB_EXTERN hb_codepoint_t
 hb_unicode_mirroring (hb_unicode_funcs_t *ufuncs,
 		      hb_codepoint_t unicode);

 /**
  * hb_unicode_script:
  *
  * Since: 0.9.2
  **/
 HB_EXTERN hb_script_t
 hb_unicode_script (hb_unicode_funcs_t *ufuncs,
 		   hb_codepoint_t unicode);

 HB_EXTERN hb_bool_t
 hb_unicode_compose (hb_unicode_funcs_t *ufuncs,
 		    hb_codepoint_t      a,
 		    hb_codepoint_t      b,
 		    hb_codepoint_t     *ab);

 HB_EXTERN hb_bool_t
 hb_unicode_decompose (hb_unicode_funcs_t *ufuncs,
 		      hb_codepoint_t      ab,
 		      hb_codepoint_t     *a,
 		      hb_codepoint_t     *b);

 HB_END_DECLS

 #endif /* HB_UNICODE_H */
	/*
	* Copyright © 2009 Red Hat, Inc.
	* Copyright © 2011 Codethink Limited
	* Copyright © 2011,2012 Google, Inc.
	*
	* This is part of HarfBuzz, a text shaping library.
	*
	* Permission is hereby granted, without written agreement and without
	* license or royalty fees, to use, copy, modify, and distribute this
	* software and its documentation for any purpose, provided that the
	* above copyright notice and the following two paragraphs appear in
	* all copies of this software.
	*
	* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
	* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
	* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
	* DAMAGE.
	*
	* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
	* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
	* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
	* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
	* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
	*
	* Red Hat Author(s): Behdad Esfahbod
	* Codethink Author(s): Ryan Lortie
	* Google Author(s): Behdad Esfahbod
	*/

	#ifndef HB_H_IN
	#error "Include <hb.h> instead."
	#endif

	#ifndef HB_UNICODE_H
	#define HB_UNICODE_H

	#include "hb-common.h"

	HB_BEGIN_DECLS


	/**
	* HB_UNICODE_MAX
	*
	* Since: 1.9.0
	**/
	#define HB_UNICODE_MAX 0x10FFFFu


	/* hb_unicode_general_category_t */

	/* Unicode Character Database property: General_Category (gc) */
	typedef enum
	{
	HB_UNICODE_GENERAL_CATEGORY_CONTROL, /* Cc */
	HB_UNICODE_GENERAL_CATEGORY_FORMAT, /* Cf */
	HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, /* Cn */
	HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, /* Co */
	HB_UNICODE_GENERAL_CATEGORY_SURROGATE, /* Cs */
	HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, /* Ll */
	HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, /* Lm */
	HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, /* Lo */
	HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, /* Lt */
	HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, /* Lu */
	HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, /* Mc */
	HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, /* Me */
	HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, /* Mn */
	HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, /* Nd */
	HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, /* Nl */
	HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, /* No */
	HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, /* Pc */
	HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, /* Pd */
	HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, /* Pe */
	HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, /* Pf */
	HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, /* Pi */
	HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, /* Po */
	HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, /* Ps */
	HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, /* Sc */
	HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, /* Sk */
	HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, /* Sm */
	HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL, /* So */
	HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, /* Zl */
	HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, /* Zp */
	HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR /* Zs */
	} hb_unicode_general_category_t;

	/* hb_unicode_combining_class_t */

	/* Note: newer versions of Unicode may add new values. Clients should be ready to handle
	* any value in the 0..254 range being returned from hb_unicode_combining_class().
	*/

	/* Unicode Character Database property: Canonical_Combining_Class (ccc) */
	typedef enum
	{
	HB_UNICODE_COMBINING_CLASS_NOT_REORDERED = 0,
	HB_UNICODE_COMBINING_CLASS_OVERLAY = 1,
	HB_UNICODE_COMBINING_CLASS_NUKTA = 7,
	HB_UNICODE_COMBINING_CLASS_KANA_VOICING = 8,
	HB_UNICODE_COMBINING_CLASS_VIRAMA = 9,

	/* Hebrew */
	HB_UNICODE_COMBINING_CLASS_CCC10 = 10,
	HB_UNICODE_COMBINING_CLASS_CCC11 = 11,
	HB_UNICODE_COMBINING_CLASS_CCC12 = 12,
	HB_UNICODE_COMBINING_CLASS_CCC13 = 13,
	HB_UNICODE_COMBINING_CLASS_CCC14 = 14,
	HB_UNICODE_COMBINING_CLASS_CCC15 = 15,
	HB_UNICODE_COMBINING_CLASS_CCC16 = 16,
	HB_UNICODE_COMBINING_CLASS_CCC17 = 17,
	HB_UNICODE_COMBINING_CLASS_CCC18 = 18,
	HB_UNICODE_COMBINING_CLASS_CCC19 = 19,
	HB_UNICODE_COMBINING_CLASS_CCC20 = 20,
	HB_UNICODE_COMBINING_CLASS_CCC21 = 21,
	HB_UNICODE_COMBINING_CLASS_CCC22 = 22,
	HB_UNICODE_COMBINING_CLASS_CCC23 = 23,
	HB_UNICODE_COMBINING_CLASS_CCC24 = 24,
	HB_UNICODE_COMBINING_CLASS_CCC25 = 25,
	HB_UNICODE_COMBINING_CLASS_CCC26 = 26,

	/* Arabic */
	HB_UNICODE_COMBINING_CLASS_CCC27 = 27,
	HB_UNICODE_COMBINING_CLASS_CCC28 = 28,
	HB_UNICODE_COMBINING_CLASS_CCC29 = 29,
	HB_UNICODE_COMBINING_CLASS_CCC30 = 30,
	HB_UNICODE_COMBINING_CLASS_CCC31 = 31,
	HB_UNICODE_COMBINING_CLASS_CCC32 = 32,
	HB_UNICODE_COMBINING_CLASS_CCC33 = 33,
	HB_UNICODE_COMBINING_CLASS_CCC34 = 34,
	HB_UNICODE_COMBINING_CLASS_CCC35 = 35,

	/* Syriac */
	HB_UNICODE_COMBINING_CLASS_CCC36 = 36,

	/* Telugu */
	HB_UNICODE_COMBINING_CLASS_CCC84 = 84,
	HB_UNICODE_COMBINING_CLASS_CCC91 = 91,

	/* Thai */
	HB_UNICODE_COMBINING_CLASS_CCC103 = 103,
	HB_UNICODE_COMBINING_CLASS_CCC107 = 107,

	/* Lao */
	HB_UNICODE_COMBINING_CLASS_CCC118 = 118,
	HB_UNICODE_COMBINING_CLASS_CCC122 = 122,

	/* Tibetan */
	HB_UNICODE_COMBINING_CLASS_CCC129 = 129,
	HB_UNICODE_COMBINING_CLASS_CCC130 = 130,
	HB_UNICODE_COMBINING_CLASS_CCC133 = 132,


	HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT = 200,
	HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW = 202,
	HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE = 214,
	HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT = 216,
	HB_UNICODE_COMBINING_CLASS_BELOW_LEFT = 218,
	HB_UNICODE_COMBINING_CLASS_BELOW = 220,
	HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT = 222,
	HB_UNICODE_COMBINING_CLASS_LEFT = 224,
	HB_UNICODE_COMBINING_CLASS_RIGHT = 226,
	HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT = 228,
	HB_UNICODE_COMBINING_CLASS_ABOVE = 230,
	HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT = 232,
	HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW = 233,
	HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE = 234,

	HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT = 240,

	HB_UNICODE_COMBINING_CLASS_INVALID = 255
	} hb_unicode_combining_class_t;


	/*
	* hb_unicode_funcs_t
	*/

	typedef struct hb_unicode_funcs_t hb_unicode_funcs_t;


	/*
	* just give me the best implementation you've got there.
	*/
	HB_EXTERN hb_unicode_funcs_t *
	hb_unicode_funcs_get_default (void);


	HB_EXTERN hb_unicode_funcs_t *
	hb_unicode_funcs_create (hb_unicode_funcs_t *parent);

	HB_EXTERN hb_unicode_funcs_t *
	hb_unicode_funcs_get_empty (void);

	HB_EXTERN hb_unicode_funcs_t *
	hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs);

	HB_EXTERN void
	hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs);

	HB_EXTERN hb_bool_t
	hb_unicode_funcs_set_user_data (hb_unicode_funcs_t *ufuncs,
	hb_user_data_key_t *key,
	void * data,
	hb_destroy_func_t destroy,
	hb_bool_t replace);


	HB_EXTERN void *
	hb_unicode_funcs_get_user_data (hb_unicode_funcs_t *ufuncs,
	hb_user_data_key_t *key);


	HB_EXTERN void
	hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs);

	HB_EXTERN hb_bool_t
	hb_unicode_funcs_is_immutable (hb_unicode_funcs_t *ufuncs);

	HB_EXTERN hb_unicode_funcs_t *
	hb_unicode_funcs_get_parent (hb_unicode_funcs_t *ufuncs);


	/*
	* funcs
	*/

	/* typedefs */

	typedef hb_unicode_combining_class_t (hb_unicode_combining_class_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t unicode,
	void *user_data);
	typedef hb_unicode_general_category_t (hb_unicode_general_category_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t unicode,
	void *user_data);
	typedef hb_codepoint_t (hb_unicode_mirroring_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t unicode,
	void *user_data);
	typedef hb_script_t (hb_unicode_script_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t unicode,
	void *user_data);

	typedef hb_bool_t (hb_unicode_compose_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t a,
	hb_codepoint_t b,
	hb_codepoint_t *ab,
	void *user_data);
	typedef hb_bool_t (hb_unicode_decompose_func_t) (hb_unicode_funcs_t ufuncs,
	hb_codepoint_t ab,
	hb_codepoint_t *a,
	hb_codepoint_t *b,
	void *user_data);

	/* setters */

	/**
	* hb_unicode_funcs_set_combining_class_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_combining_class_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/**
	* hb_unicode_funcs_set_general_category_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_general_category_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/**
	* hb_unicode_funcs_set_mirroring_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_mirroring_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/**
	* hb_unicode_funcs_set_script_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_script_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/**
	* hb_unicode_funcs_set_compose_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_compose_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_compose_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/**
	* hb_unicode_funcs_set_decompose_func:
	* @ufuncs: a Unicode function structure
	* @func: (closure user_data) (destroy destroy) (scope notified):
	* @user_data:
	* @destroy:
	*
	*
	*
	* Since: 0.9.2
	**/
	HB_EXTERN void
	hb_unicode_funcs_set_decompose_func (hb_unicode_funcs_t *ufuncs,
	hb_unicode_decompose_func_t func,
	void *user_data, hb_destroy_func_t destroy);

	/* accessors */

	/**
	* hb_unicode_combining_class:
	*
	* Since: 0.9.2
	**/
	HB_EXTERN hb_unicode_combining_class_t
	hb_unicode_combining_class (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t unicode);

	/**
	* hb_unicode_general_category:
	*
	* Since: 0.9.2
	**/
	HB_EXTERN hb_unicode_general_category_t
	hb_unicode_general_category (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t unicode);

	/**
	* hb_unicode_mirroring:
	*
	* Since: 0.9.2
	**/
	HB_EXTERN hb_codepoint_t
	hb_unicode_mirroring (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t unicode);

	/**
	* hb_unicode_script:
	*
	* Since: 0.9.2
	**/
	HB_EXTERN hb_script_t
	hb_unicode_script (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t unicode);

	HB_EXTERN hb_bool_t
	hb_unicode_compose (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t a,
	hb_codepoint_t b,
	hb_codepoint_t *ab);

	HB_EXTERN hb_bool_t
	hb_unicode_decompose (hb_unicode_funcs_t *ufuncs,
	hb_codepoint_t ab,
	hb_codepoint_t *a,
	hb_codepoint_t *b);

	HB_END_DECLS

	#endif /* HB_UNICODE_H */