644 lines
22 KiB
C
644 lines
22 KiB
C
/*
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* Copyright © 2009 Red Hat, Inc.
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* Copyright © 2011 Codethink Limited
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* Copyright © 2011,2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Red Hat Author(s): Behdad Esfahbod
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* Codethink Author(s): Ryan Lortie
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* Google Author(s): Behdad Esfahbod
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*/
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#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
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#error "Include <hb.h> instead."
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#endif
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#ifndef HB_UNICODE_H
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#define HB_UNICODE_H
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#include "hb-common.h"
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HB_BEGIN_DECLS
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/**
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* HB_UNICODE_MAX:
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*
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* Maximum valid Unicode code point.
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*
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* Since: 1.9.0
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**/
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#define HB_UNICODE_MAX 0x10FFFFu
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/**
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* hb_unicode_general_category_t:
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* @HB_UNICODE_GENERAL_CATEGORY_CONTROL: [Cc]
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* @HB_UNICODE_GENERAL_CATEGORY_FORMAT: [Cf]
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* @HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED: [Cn]
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* @HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE: [Co]
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* @HB_UNICODE_GENERAL_CATEGORY_SURROGATE: [Cs]
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* @HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER: [Ll]
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* @HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER: [Lm]
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* @HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER: [Lo]
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* @HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER: [Lt]
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* @HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER: [Lu]
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* @HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK: [Mc]
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* @HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK: [Me]
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* @HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK: [Mn]
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* @HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER: [Nd]
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* @HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER: [Nl]
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* @HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER: [No]
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* @HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION: [Pc]
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* @HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION: [Pd]
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* @HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION: [Pe]
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* @HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION: [Pf]
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* @HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION: [Pi]
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* @HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION: [Po]
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* @HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION: [Ps]
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* @HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL: [Sc]
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* @HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL: [Sk]
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* @HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL: [Sm]
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* @HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL: [So]
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* @HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR: [Zl]
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* @HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR: [Zp]
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* @HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR: [Zs]
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*
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* Data type for the "General_Category" (gc) property from
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* the Unicode Character Database.
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**/
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/* Unicode Character Database property: General_Category (gc) */
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typedef enum
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{
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HB_UNICODE_GENERAL_CATEGORY_CONTROL, /* Cc */
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HB_UNICODE_GENERAL_CATEGORY_FORMAT, /* Cf */
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HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, /* Cn */
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HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, /* Co */
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HB_UNICODE_GENERAL_CATEGORY_SURROGATE, /* Cs */
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HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, /* Ll */
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HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, /* Lm */
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HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, /* Lo */
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HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, /* Lt */
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HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, /* Lu */
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HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, /* Mc */
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HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, /* Me */
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HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, /* Mn */
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HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, /* Nd */
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HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, /* Nl */
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HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, /* No */
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HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, /* Pc */
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HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, /* Pd */
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HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, /* Pe */
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HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, /* Pf */
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HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, /* Pi */
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HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, /* Po */
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HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, /* Ps */
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HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, /* Sc */
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HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, /* Sk */
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HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, /* Sm */
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HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL, /* So */
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HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, /* Zl */
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HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, /* Zp */
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HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR /* Zs */
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} hb_unicode_general_category_t;
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/**
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* hb_unicode_combining_class_t:
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* @HB_UNICODE_COMBINING_CLASS_NOT_REORDERED: Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing
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* @HB_UNICODE_COMBINING_CLASS_OVERLAY: Marks which overlay a base letter or symbol
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* @HB_UNICODE_COMBINING_CLASS_NUKTA: Diacritic nukta marks in Brahmi-derived scripts
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* @HB_UNICODE_COMBINING_CLASS_KANA_VOICING: Hiragana/Katakana voicing marks
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* @HB_UNICODE_COMBINING_CLASS_VIRAMA: Viramas
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* @HB_UNICODE_COMBINING_CLASS_CCC10: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC11: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC12: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC13: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC14: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC15: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC16: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC17: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC18: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC19: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC20: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC21: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC22: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC23: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC24: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC25: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC26: [Hebrew]
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* @HB_UNICODE_COMBINING_CLASS_CCC27: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC28: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC29: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC30: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC31: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC32: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC33: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC34: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC35: [Arabic]
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* @HB_UNICODE_COMBINING_CLASS_CCC36: [Syriac]
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* @HB_UNICODE_COMBINING_CLASS_CCC84: [Telugu]
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* @HB_UNICODE_COMBINING_CLASS_CCC91: [Telugu]
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* @HB_UNICODE_COMBINING_CLASS_CCC103: [Thai]
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* @HB_UNICODE_COMBINING_CLASS_CCC107: [Thai]
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* @HB_UNICODE_COMBINING_CLASS_CCC118: [Lao]
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* @HB_UNICODE_COMBINING_CLASS_CCC122: [Lao]
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* @HB_UNICODE_COMBINING_CLASS_CCC129: [Tibetan]
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* @HB_UNICODE_COMBINING_CLASS_CCC130: [Tibetan]
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* @HB_UNICODE_COMBINING_CLASS_CCC133: [Tibetan]
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* @HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT: Marks attached at the bottom left
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* @HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW: Marks attached directly below
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* @HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE: Marks attached directly above
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* @HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT: Marks attached at the top right
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* @HB_UNICODE_COMBINING_CLASS_BELOW_LEFT: Distinct marks at the bottom left
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* @HB_UNICODE_COMBINING_CLASS_BELOW: Distinct marks directly below
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* @HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT: Distinct marks at the bottom right
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* @HB_UNICODE_COMBINING_CLASS_LEFT: Distinct marks to the left
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* @HB_UNICODE_COMBINING_CLASS_RIGHT: Distinct marks to the right
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* @HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT: Distinct marks at the top left
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* @HB_UNICODE_COMBINING_CLASS_ABOVE: Distinct marks directly above
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* @HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT: Distinct marks at the top right
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* @HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW: Distinct marks subtending two bases
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* @HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE: Distinct marks extending above two bases
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* @HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT: Greek iota subscript only
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* @HB_UNICODE_COMBINING_CLASS_INVALID: Invalid combining class
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*
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* Data type for the Canonical_Combining_Class (ccc) property
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* from the Unicode Character Database.
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*
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* <note>Note: newer versions of Unicode may add new values.
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* Client programs should be ready to handle any value in the 0..254 range
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* being returned from hb_unicode_combining_class().</note>
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*
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**/
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typedef enum
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{
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HB_UNICODE_COMBINING_CLASS_NOT_REORDERED = 0,
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HB_UNICODE_COMBINING_CLASS_OVERLAY = 1,
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HB_UNICODE_COMBINING_CLASS_NUKTA = 7,
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HB_UNICODE_COMBINING_CLASS_KANA_VOICING = 8,
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HB_UNICODE_COMBINING_CLASS_VIRAMA = 9,
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/* Hebrew */
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HB_UNICODE_COMBINING_CLASS_CCC10 = 10,
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HB_UNICODE_COMBINING_CLASS_CCC11 = 11,
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HB_UNICODE_COMBINING_CLASS_CCC12 = 12,
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HB_UNICODE_COMBINING_CLASS_CCC13 = 13,
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HB_UNICODE_COMBINING_CLASS_CCC14 = 14,
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HB_UNICODE_COMBINING_CLASS_CCC15 = 15,
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HB_UNICODE_COMBINING_CLASS_CCC16 = 16,
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HB_UNICODE_COMBINING_CLASS_CCC17 = 17,
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HB_UNICODE_COMBINING_CLASS_CCC18 = 18,
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HB_UNICODE_COMBINING_CLASS_CCC19 = 19,
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HB_UNICODE_COMBINING_CLASS_CCC20 = 20,
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HB_UNICODE_COMBINING_CLASS_CCC21 = 21,
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HB_UNICODE_COMBINING_CLASS_CCC22 = 22,
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HB_UNICODE_COMBINING_CLASS_CCC23 = 23,
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HB_UNICODE_COMBINING_CLASS_CCC24 = 24,
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HB_UNICODE_COMBINING_CLASS_CCC25 = 25,
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HB_UNICODE_COMBINING_CLASS_CCC26 = 26,
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/* Arabic */
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HB_UNICODE_COMBINING_CLASS_CCC27 = 27,
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HB_UNICODE_COMBINING_CLASS_CCC28 = 28,
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HB_UNICODE_COMBINING_CLASS_CCC29 = 29,
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HB_UNICODE_COMBINING_CLASS_CCC30 = 30,
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HB_UNICODE_COMBINING_CLASS_CCC31 = 31,
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HB_UNICODE_COMBINING_CLASS_CCC32 = 32,
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HB_UNICODE_COMBINING_CLASS_CCC33 = 33,
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HB_UNICODE_COMBINING_CLASS_CCC34 = 34,
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HB_UNICODE_COMBINING_CLASS_CCC35 = 35,
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/* Syriac */
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HB_UNICODE_COMBINING_CLASS_CCC36 = 36,
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/* Telugu */
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HB_UNICODE_COMBINING_CLASS_CCC84 = 84,
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HB_UNICODE_COMBINING_CLASS_CCC91 = 91,
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/* Thai */
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HB_UNICODE_COMBINING_CLASS_CCC103 = 103,
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HB_UNICODE_COMBINING_CLASS_CCC107 = 107,
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/* Lao */
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HB_UNICODE_COMBINING_CLASS_CCC118 = 118,
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HB_UNICODE_COMBINING_CLASS_CCC122 = 122,
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/* Tibetan */
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HB_UNICODE_COMBINING_CLASS_CCC129 = 129,
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HB_UNICODE_COMBINING_CLASS_CCC130 = 130,
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HB_UNICODE_COMBINING_CLASS_CCC133 = 132,
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HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT = 200,
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HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW = 202,
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HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE = 214,
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HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT = 216,
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HB_UNICODE_COMBINING_CLASS_BELOW_LEFT = 218,
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HB_UNICODE_COMBINING_CLASS_BELOW = 220,
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HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT = 222,
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HB_UNICODE_COMBINING_CLASS_LEFT = 224,
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HB_UNICODE_COMBINING_CLASS_RIGHT = 226,
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HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT = 228,
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HB_UNICODE_COMBINING_CLASS_ABOVE = 230,
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HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT = 232,
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HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW = 233,
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HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE = 234,
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HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT = 240,
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HB_UNICODE_COMBINING_CLASS_INVALID = 255
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} hb_unicode_combining_class_t;
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/*
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* hb_unicode_funcs_t
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*/
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/**
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* hb_unicode_funcs_t:
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*
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* Data type containing a set of virtual methods used for
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* accessing various Unicode character properties.
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*
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* HarfBuzz provides a default function for each of the
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* methods in #hb_unicode_funcs_t. Client programs can implement
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* their own replacements for the individual Unicode functions, as
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* needed, and replace the default by calling the setter for a
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* method.
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**/
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typedef struct hb_unicode_funcs_t hb_unicode_funcs_t;
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/*
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* just give me the best implementation you've got there.
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*/
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HB_EXTERN hb_unicode_funcs_t *
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hb_unicode_funcs_get_default (void);
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HB_EXTERN hb_unicode_funcs_t *
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hb_unicode_funcs_create (hb_unicode_funcs_t *parent);
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HB_EXTERN hb_unicode_funcs_t *
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hb_unicode_funcs_get_empty (void);
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HB_EXTERN hb_unicode_funcs_t *
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hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs);
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HB_EXTERN void
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hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs);
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HB_EXTERN hb_bool_t
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hb_unicode_funcs_set_user_data (hb_unicode_funcs_t *ufuncs,
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hb_user_data_key_t *key,
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void * data,
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hb_destroy_func_t destroy,
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hb_bool_t replace);
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HB_EXTERN void *
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hb_unicode_funcs_get_user_data (hb_unicode_funcs_t *ufuncs,
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hb_user_data_key_t *key);
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HB_EXTERN void
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hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs);
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HB_EXTERN hb_bool_t
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hb_unicode_funcs_is_immutable (hb_unicode_funcs_t *ufuncs);
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HB_EXTERN hb_unicode_funcs_t *
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hb_unicode_funcs_get_parent (hb_unicode_funcs_t *ufuncs);
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/*
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* funcs
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*/
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/* typedefs */
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/**
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* hb_unicode_combining_class_func_t:
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* @ufuncs: A Unicode-functions structure
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* @unicode: The code point to query
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* @user_data: User data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should retrieve the Canonical Combining Class (ccc)
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* property for a specified Unicode code point.
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*
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* Return value: The #hb_unicode_combining_class_t of @unicode
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*
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**/
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typedef hb_unicode_combining_class_t (*hb_unicode_combining_class_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode,
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void *user_data);
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/**
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* hb_unicode_general_category_func_t:
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* @ufuncs: A Unicode-functions structure
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* @unicode: The code point to query
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* @user_data: User data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should retrieve the General Category property for
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* a specified Unicode code point.
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*
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* Return value: The #hb_unicode_general_category_t of @unicode
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*
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**/
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typedef hb_unicode_general_category_t (*hb_unicode_general_category_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode,
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void *user_data);
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/**
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* hb_unicode_mirroring_func_t:
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* @ufuncs: A Unicode-functions structure
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* @unicode: The code point to query
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* @user_data: User data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should retrieve the Bi-Directional Mirroring Glyph
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* code point for a specified Unicode code point.
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*
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* <note>Note: If a code point does not have a specified
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* Bi-Directional Mirroring Glyph defined, the method should
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* return the original code point.</note>
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*
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* Return value: The #hb_codepoint_t of the Mirroring Glyph for @unicode
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*
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**/
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typedef hb_codepoint_t (*hb_unicode_mirroring_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode,
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void *user_data);
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/**
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* hb_unicode_script_func_t:
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* @ufuncs: A Unicode-functions structure
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* @unicode: The code point to query
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* @user_data: User data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should retrieve the Script property for a
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* specified Unicode code point.
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*
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* Return value: The #hb_script_t of @unicode
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*
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**/
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typedef hb_script_t (*hb_unicode_script_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode,
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void *user_data);
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/**
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* hb_unicode_compose_func_t:
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* @ufuncs: A Unicode-functions structure
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* @a: The first code point to compose
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* @b: The second code point to compose
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* @ab: (out): The composed code point
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* @user_data: user data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should compose a sequence of two input Unicode code
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* points by canonical equivalence, returning the composed code
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* point in a #hb_codepoint_t output parameter (if successful).
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* The method must return an #hb_bool_t indicating the success
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* of the composition.
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*
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* Return value: %true is @a,@b composed, %false otherwise
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*
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**/
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typedef hb_bool_t (*hb_unicode_compose_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t a,
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hb_codepoint_t b,
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hb_codepoint_t *ab,
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void *user_data);
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/**
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* hb_unicode_decompose_func_t:
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* @ufuncs: A Unicode-functions structure
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* @ab: The code point to decompose
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* @a: (out): The first decomposed code point
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* @b: (out): The second decomposed code point
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* @user_data: user data pointer passed by the caller
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*
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* A virtual method for the #hb_unicode_funcs_t structure.
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*
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* This method should decompose an input Unicode code point,
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* returning the two decomposed code points in #hb_codepoint_t
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* output parameters (if successful). The method must return an
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* #hb_bool_t indicating the success of the composition.
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*
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* Return value: %true if @ab decomposed, %false otherwise
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*
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**/
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typedef hb_bool_t (*hb_unicode_decompose_func_t) (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t ab,
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hb_codepoint_t *a,
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hb_codepoint_t *b,
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void *user_data);
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/* func setters */
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/**
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* hb_unicode_funcs_set_combining_class_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_combining_class_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_combining_class_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/**
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* hb_unicode_funcs_set_general_category_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_general_category_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_general_category_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/**
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* hb_unicode_funcs_set_mirroring_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_mirroring_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_mirroring_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/**
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* hb_unicode_funcs_set_script_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_script_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_script_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/**
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* hb_unicode_funcs_set_compose_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_compose_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_compose_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_compose_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/**
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* hb_unicode_funcs_set_decompose_func:
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* @ufuncs: A Unicode-functions structure
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* @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
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* @user_data: Data to pass to @func
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* @destroy: (nullable): The function to call when @user_data is not needed anymore
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*
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* Sets the implementation function for #hb_unicode_decompose_func_t.
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*
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* Since: 0.9.2
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**/
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HB_EXTERN void
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hb_unicode_funcs_set_decompose_func (hb_unicode_funcs_t *ufuncs,
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hb_unicode_decompose_func_t func,
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void *user_data, hb_destroy_func_t destroy);
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/* accessors */
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/**
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* hb_unicode_combining_class:
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* @ufuncs: The Unicode-functions structure
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* @unicode: The code point to query
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*
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* Retrieves the Canonical Combining Class (ccc) property
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* of code point @unicode.
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*
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* Return value: The #hb_unicode_combining_class_t of @unicode
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*
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* Since: 0.9.2
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**/
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HB_EXTERN hb_unicode_combining_class_t
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hb_unicode_combining_class (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode);
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/**
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* hb_unicode_general_category:
|
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* @ufuncs: The Unicode-functions structure
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* @unicode: The code point to query
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*
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* Retrieves the General Category (gc) property
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* of code point @unicode.
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*
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* Return value: The #hb_unicode_general_category_t of @unicode
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*
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* Since: 0.9.2
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**/
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HB_EXTERN hb_unicode_general_category_t
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hb_unicode_general_category (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode);
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/**
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|
* hb_unicode_mirroring:
|
|
* @ufuncs: The Unicode-functions structure
|
|
* @unicode: The code point to query
|
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*
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* Retrieves the Bi-directional Mirroring Glyph code
|
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* point defined for code point @unicode.
|
|
*
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|
* Return value: The #hb_codepoint_t of the Mirroring Glyph for @unicode
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*
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* Since: 0.9.2
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**/
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HB_EXTERN hb_codepoint_t
|
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hb_unicode_mirroring (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t unicode);
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/**
|
|
* hb_unicode_script:
|
|
* @ufuncs: The Unicode-functions structure
|
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* @unicode: The code point to query
|
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*
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|
* Retrieves the #hb_script_t script to which code
|
|
* point @unicode belongs.
|
|
*
|
|
* Return value: The #hb_script_t of @unicode
|
|
*
|
|
* Since: 0.9.2
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**/
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HB_EXTERN hb_script_t
|
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hb_unicode_script (hb_unicode_funcs_t *ufuncs,
|
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hb_codepoint_t unicode);
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HB_EXTERN hb_bool_t
|
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hb_unicode_compose (hb_unicode_funcs_t *ufuncs,
|
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hb_codepoint_t a,
|
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hb_codepoint_t b,
|
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hb_codepoint_t *ab);
|
|
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HB_EXTERN hb_bool_t
|
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hb_unicode_decompose (hb_unicode_funcs_t *ufuncs,
|
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hb_codepoint_t ab,
|
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hb_codepoint_t *a,
|
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hb_codepoint_t *b);
|
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HB_END_DECLS
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#endif /* HB_UNICODE_H */
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