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/*
* 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:
* @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]
*
* Data type for the "General_Category" (gc) property from
* the Unicode Character Database.
**/
/* 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:
* @HB_UNICODE_COMBINING_CLASS_NOT_REORDERED: Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing
* @HB_UNICODE_COMBINING_CLASS_OVERLAY: Marks which overlay a base letter or symbol
* @HB_UNICODE_COMBINING_CLASS_NUKTA: Diacritic nukta marks in Brahmi-derived scripts
* @HB_UNICODE_COMBINING_CLASS_KANA_VOICING: Hiragana/Katakana voicing marks
* @HB_UNICODE_COMBINING_CLASS_VIRAMA: Viramas
* @HB_UNICODE_COMBINING_CLASS_CCC10: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC11: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC12: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC13: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC14: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC15: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC16: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC17: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC18: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC19: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC20: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC21: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC22: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC23: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC24: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC25: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC26: [Hebrew]
* @HB_UNICODE_COMBINING_CLASS_CCC27: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC28: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC29: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC30: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC31: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC32: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC33: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC34: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC35: [Arabic]
* @HB_UNICODE_COMBINING_CLASS_CCC36: [Syriac]
* @HB_UNICODE_COMBINING_CLASS_CCC84: [Telugu]
* @HB_UNICODE_COMBINING_CLASS_CCC91: [Telugu]
* @HB_UNICODE_COMBINING_CLASS_CCC103: [Thai]
* @HB_UNICODE_COMBINING_CLASS_CCC107: [Thai]
* @HB_UNICODE_COMBINING_CLASS_CCC118: [Lao]
* @HB_UNICODE_COMBINING_CLASS_CCC122: [Lao]
* @HB_UNICODE_COMBINING_CLASS_CCC129: [Tibetan]
* @HB_UNICODE_COMBINING_CLASS_CCC130: [Tibetan]
* @HB_UNICODE_COMBINING_CLASS_CCC133: [Tibetan]
* @HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT: Marks attached at the bottom left
* @HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW: Marks attached directly below
* @HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE: Marks attached directly above
* @HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT: Marks attached at the top right
* @HB_UNICODE_COMBINING_CLASS_BELOW_LEFT: Distinct marks at the bottom left
* @HB_UNICODE_COMBINING_CLASS_BELOW: Distinct marks directly below
* @HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT: Distinct marks at the bottom right
* @HB_UNICODE_COMBINING_CLASS_LEFT: Distinct marks to the left
* @HB_UNICODE_COMBINING_CLASS_RIGHT: Distinct marks to the right
* @HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT: Distinct marks at the top left
* @HB_UNICODE_COMBINING_CLASS_ABOVE: Distinct marks directly above
* @HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT: Distinct marks at the top right
* @HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW: Distinct marks subtending two bases
* @HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE: Distinct marks extending above two bases
* @HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT: Greek iota subscript only
* @HB_UNICODE_COMBINING_CLASS_INVALID: Invalid combining class
*
* Data type for the Canonical_Combining_Class (ccc) property
* from the Unicode Character Database.
*
* <note>Note: newer versions of Unicode may add new values.
* Client programs should be ready to handle any value in the 0..254 range
* being returned from hb_unicode_combining_class().</note>
*
**/
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
*/
/**
* hb_unicode_funcs_t:
*
* Data type containing a set of virtual methods used for
* accessing various Unicode character properties.
*
* HarfBuzz provides a default function for each of the
* methods in #hb_unicode_funcs_t. Client programs can implement
* their own replacements for the individual Unicode functions, as
* needed, and replace the default by calling the setter for a
* method.
**/
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 */
/**
* hb_unicode_combining_class_func_t:
* @ufuncs: A Unicode-functions structure
* @unicode: The code point to query
* @user_data: User data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should retrieve the Canonical Combining Class (ccc)
* property for a specified Unicode code point.
*
* Return value: The #hb_unicode_combining_class_t of @unicode
*
**/
typedef hb_unicode_combining_class_t (*hb_unicode_combining_class_func_t) (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data);
/**
* hb_unicode_general_category_func_t:
* @ufuncs: A Unicode-functions structure
* @unicode: The code point to query
* @user_data: User data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should retrieve the General Category property for
* a specified Unicode code point.
*
* Return value: The #hb_unicode_general_category_t of @unicode
*
**/
typedef hb_unicode_general_category_t (*hb_unicode_general_category_func_t) (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data);
/**
* hb_unicode_mirroring_func_t:
* @ufuncs: A Unicode-functions structure
* @unicode: The code point to query
* @user_data: User data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should retrieve the Bi-Directional Mirroring Glyph
* code point for a specified Unicode code point.
*
* <note>Note: If a code point does not have a specified
* Bi-Directional Mirroring Glyph defined, the method should
* return the original code point.</note>
*
* Return value: The #hb_codepoint_t of the Mirroring Glyph for @unicode
*
**/
typedef hb_codepoint_t (*hb_unicode_mirroring_func_t) (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data);
/**
* hb_unicode_script_func_t:
* @ufuncs: A Unicode-functions structure
* @unicode: The code point to query
* @user_data: User data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should retrieve the Script property for a
* specified Unicode code point.
*
* Return value: The #hb_script_t of @unicode
*
**/
typedef hb_script_t (*hb_unicode_script_func_t) (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode,
void *user_data);
/**
* hb_unicode_compose_func_t:
* @ufuncs: A Unicode-functions structure
* @a: The first code point to compose
* @b: The second code point to compose
* @ab: (out): The composed code point
* @user_data: user data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should compose a sequence of two input Unicode code
* points by canonical equivalence, returning the composed code
* point in a #hb_codepoint_t output parameter (if successful).
* The method must return an #hb_bool_t indicating the success
* of the composition.
*
* Return value: True is @a,@b composed, false otherwise
*
**/
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);
/**
* hb_unicode_decompose_func_t:
* @ufuncs: A Unicode-functions structure
* @ab: The code point to decompose
* @a: (out): The first decomposed code point
* @b: (out): The second decomposed code point
* @user_data: user data pointer passed by the caller
*
* A virtual method for the #hb_unicode_funcs_t structure.
*
* This method should decompose an input Unicode code point,
* returning the two decomposed code points in #hb_codepoint_t
* output parameters (if successful). The method must return an
* #hb_bool_t indicating the success of the composition.
*
* Return value: True if @ab decomposed, false otherwise
*
**/
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);
/* func setters */
/**
* hb_unicode_funcs_set_combining_class_func:
* @ufuncs: A Unicode-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_combining_class_func_t.
*
* 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-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_general_category_func_t.
*
* 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-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_mirroring_func_t.
*
* 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-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_script_func_t.
*
* 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-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_compose_func_t.
*
* 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-functions structure
* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
* @user_data: Data to pass to @func
* @destroy: (optional): The function to call when @user_data is not needed anymore
*
* Sets the implementation function for #hb_unicode_decompose_func_t.
*
* 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:
* @ufuncs: The Unicode-functions structure
* @unicode: The code point to query
*
* Retrieves the Canonical Combining Class (ccc) property
* of code point @unicode.
*
* Return value: The #hb_unicode_combining_class_t of @unicode
*
* 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:
* @ufuncs: The Unicode-functions structure
* @unicode: The code point to query
*
* Retrieves the General Category (gc) property
* of code point @unicode.
*
* Return value: The #hb_unicode_general_category_t of @unicode
*
* 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:
* @ufuncs: The Unicode-functions structure
* @unicode: The code point to query
*
* Retrieves the Bi-directional Mirroring Glyph code
* point defined for code point @unicode.
*
* Return value: The #hb_codepoint_t of the Mirroring Glyph for @unicode
*
* Since: 0.9.2
**/
HB_EXTERN hb_codepoint_t
hb_unicode_mirroring (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode);
/**
* hb_unicode_script:
* @ufuncs: The Unicode-functions structure
* @unicode: The code point to query
*
* Retrieves the #hb_script_t script to which code
* point @unicode belongs.
*
* Return value: The #hb_script_t of @unicode
*
* Since: 0.9.2
**/
HB_EXTERN hb_script_t
hb_unicode_script (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t unicode);
/**
* hb_unicode_compose:
* @ufuncs: The Unicode-functions structure
* @a: The first code point to compose
* @b: The second code point to compose
* @ab: (out): The composed code point
*
* Composes the code point sequence @a,@b by canonical equivalence into
* code point @ab.
*
* Return value: True is @a,@b composed, false otherwise
*
* Since: 0.9.2
**/
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_unicode_decompose:
* @ufuncs: The Unicode-functions structure
* @ab: The code point to decompose
* @a: (out): The first decomposed code point
* @b: (out): The second decomposed code point
*
* Decomposes code point @ab by canonical equivalence, into code points
* @a and @b.
*
* Return value: True if @ab decomposed, false otherwise
*
* Since: 0.9.2
**/
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 */