Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 669 insertions, 0 deletions

diff --git a/gfx/harfbuzz/src/hb-unicode.h b/gfx/harfbuzz/src/hb-unicode.h
new file mode 100644
index 0000000000..7ea0848c0f
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-unicode.h
@@ -0,0 +1,669 @@
+/*
+ * 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 */