| /* |
| * 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_general_category_t */ |
| |
| /* Unicode Character Database property: General_Category (gc) */ |
| typedef enum |
| { |
| HB_UNICODE_GENERAL_CATEGORY_CONTROL, /* Cc */ |
| HB_UNICODE_GENERAL_CATEGORY_FORMAT, /* Cf */ |
| HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED, /* Cn */ |
| HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE, /* Co */ |
| HB_UNICODE_GENERAL_CATEGORY_SURROGATE, /* Cs */ |
| HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER, /* Ll */ |
| HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER, /* Lm */ |
| HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER, /* Lo */ |
| HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER, /* Lt */ |
| HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER, /* Lu */ |
| HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK, /* Mc */ |
| HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK, /* Me */ |
| HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK, /* Mn */ |
| HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER, /* Nd */ |
| HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER, /* Nl */ |
| HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER, /* No */ |
| HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION, /* Pc */ |
| HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION, /* Pd */ |
| HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION, /* Pe */ |
| HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION, /* Pf */ |
| HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION, /* Pi */ |
| HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION, /* Po */ |
| HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION, /* Ps */ |
| HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL, /* Sc */ |
| HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL, /* Sk */ |
| HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL, /* Sm */ |
| HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL, /* So */ |
| HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR, /* Zl */ |
| HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR, /* Zp */ |
| HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR /* Zs */ |
| } hb_unicode_general_category_t; |
| |
| /* hb_unicode_combining_class_t */ |
| |
| /* Note: newer versions of Unicode may add new values. Clients should be ready to handle |
| * any value in the 0..254 range being returned from hb_unicode_combining_class(). |
| */ |
| |
| /* Unicode Character Database property: Canonical_Combining_Class (ccc) */ |
| typedef enum |
| { |
| HB_UNICODE_COMBINING_CLASS_NOT_REORDERED = 0, |
| HB_UNICODE_COMBINING_CLASS_OVERLAY = 1, |
| HB_UNICODE_COMBINING_CLASS_NUKTA = 7, |
| HB_UNICODE_COMBINING_CLASS_KANA_VOICING = 8, |
| HB_UNICODE_COMBINING_CLASS_VIRAMA = 9, |
| |
| /* Hebrew */ |
| HB_UNICODE_COMBINING_CLASS_CCC10 = 10, |
| HB_UNICODE_COMBINING_CLASS_CCC11 = 11, |
| HB_UNICODE_COMBINING_CLASS_CCC12 = 12, |
| HB_UNICODE_COMBINING_CLASS_CCC13 = 13, |
| HB_UNICODE_COMBINING_CLASS_CCC14 = 14, |
| HB_UNICODE_COMBINING_CLASS_CCC15 = 15, |
| HB_UNICODE_COMBINING_CLASS_CCC16 = 16, |
| HB_UNICODE_COMBINING_CLASS_CCC17 = 17, |
| HB_UNICODE_COMBINING_CLASS_CCC18 = 18, |
| HB_UNICODE_COMBINING_CLASS_CCC19 = 19, |
| HB_UNICODE_COMBINING_CLASS_CCC20 = 20, |
| HB_UNICODE_COMBINING_CLASS_CCC21 = 21, |
| HB_UNICODE_COMBINING_CLASS_CCC22 = 22, |
| HB_UNICODE_COMBINING_CLASS_CCC23 = 23, |
| HB_UNICODE_COMBINING_CLASS_CCC24 = 24, |
| HB_UNICODE_COMBINING_CLASS_CCC25 = 25, |
| HB_UNICODE_COMBINING_CLASS_CCC26 = 26, |
| |
| /* Arabic */ |
| HB_UNICODE_COMBINING_CLASS_CCC27 = 27, |
| HB_UNICODE_COMBINING_CLASS_CCC28 = 28, |
| HB_UNICODE_COMBINING_CLASS_CCC29 = 29, |
| HB_UNICODE_COMBINING_CLASS_CCC30 = 30, |
| HB_UNICODE_COMBINING_CLASS_CCC31 = 31, |
| HB_UNICODE_COMBINING_CLASS_CCC32 = 32, |
| HB_UNICODE_COMBINING_CLASS_CCC33 = 33, |
| HB_UNICODE_COMBINING_CLASS_CCC34 = 34, |
| HB_UNICODE_COMBINING_CLASS_CCC35 = 35, |
| |
| /* Syriac */ |
| HB_UNICODE_COMBINING_CLASS_CCC36 = 36, |
| |
| /* Telugu */ |
| HB_UNICODE_COMBINING_CLASS_CCC84 = 84, |
| HB_UNICODE_COMBINING_CLASS_CCC91 = 91, |
| |
| /* Thai */ |
| HB_UNICODE_COMBINING_CLASS_CCC103 = 103, |
| HB_UNICODE_COMBINING_CLASS_CCC107 = 107, |
| |
| /* Lao */ |
| HB_UNICODE_COMBINING_CLASS_CCC118 = 118, |
| HB_UNICODE_COMBINING_CLASS_CCC122 = 122, |
| |
| /* Tibetan */ |
| HB_UNICODE_COMBINING_CLASS_CCC129 = 129, |
| HB_UNICODE_COMBINING_CLASS_CCC130 = 130, |
| HB_UNICODE_COMBINING_CLASS_CCC133 = 132, |
| |
| |
| HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT = 200, |
| HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW = 202, |
| HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE = 214, |
| HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT = 216, |
| HB_UNICODE_COMBINING_CLASS_BELOW_LEFT = 218, |
| HB_UNICODE_COMBINING_CLASS_BELOW = 220, |
| HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT = 222, |
| HB_UNICODE_COMBINING_CLASS_LEFT = 224, |
| HB_UNICODE_COMBINING_CLASS_RIGHT = 226, |
| HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT = 228, |
| HB_UNICODE_COMBINING_CLASS_ABOVE = 230, |
| HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT = 232, |
| HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW = 233, |
| HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE = 234, |
| |
| HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT = 240, |
| |
| HB_UNICODE_COMBINING_CLASS_INVALID = 255 |
| } hb_unicode_combining_class_t; |
| |
| |
| /* |
| * hb_unicode_funcs_t |
| */ |
| |
| typedef struct hb_unicode_funcs_t hb_unicode_funcs_t; |
| |
| |
| /* |
| * just give me the best implementation you've got there. |
| */ |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_get_default (void); |
| |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_create (hb_unicode_funcs_t *parent); |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_get_empty (void); |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs); |
| |
| void |
| hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs); |
| |
| 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); |
| |
| |
| void * |
| hb_unicode_funcs_get_user_data (hb_unicode_funcs_t *ufuncs, |
| hb_user_data_key_t *key); |
| |
| |
| void |
| hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs); |
| |
| hb_bool_t |
| hb_unicode_funcs_is_immutable (hb_unicode_funcs_t *ufuncs); |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_get_parent (hb_unicode_funcs_t *ufuncs); |
| |
| |
| /* |
| * funcs |
| */ |
| |
| /* typedefs */ |
| |
| typedef hb_unicode_combining_class_t (*hb_unicode_combining_class_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode, |
| void *user_data); |
| typedef unsigned int (*hb_unicode_eastasian_width_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode, |
| void *user_data); |
| typedef hb_unicode_general_category_t (*hb_unicode_general_category_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode, |
| void *user_data); |
| typedef hb_codepoint_t (*hb_unicode_mirroring_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode, |
| void *user_data); |
| typedef hb_script_t (*hb_unicode_script_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode, |
| void *user_data); |
| |
| typedef hb_bool_t (*hb_unicode_compose_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t a, |
| hb_codepoint_t b, |
| hb_codepoint_t *ab, |
| void *user_data); |
| typedef hb_bool_t (*hb_unicode_decompose_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t ab, |
| hb_codepoint_t *a, |
| hb_codepoint_t *b, |
| void *user_data); |
| |
| /** |
| * hb_unicode_decompose_compatibility_func_t: |
| * @ufuncs: Unicode function structure |
| * @u: codepoint to decompose |
| * @decomposed: address of codepoint array (of length %HB_UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into |
| * @user_data: user data pointer as passed to hb_unicode_funcs_set_decompose_compatibility_func() |
| * |
| * Fully decompose @u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to @decomposed. |
| * The complete length of the decomposition will be returned. |
| * |
| * If @u has no compatibility decomposition, zero should be returned. |
| * |
| * The Unicode standard guarantees that a buffer of length %HB_UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any |
| * compatibility decomposition plus an terminating value of 0. Consequently, @decompose must be allocated by the caller to be at least this length. Implementations |
| * of this function type must ensure that they do not write past the provided array. |
| * |
| * Return value: number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available. |
| */ |
| typedef unsigned int (*hb_unicode_decompose_compatibility_func_t) (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t u, |
| hb_codepoint_t *decomposed, |
| void *user_data); |
| |
| /* See Unicode 6.1 for details on the maximum decomposition length. */ |
| #define HB_UNICODE_MAX_DECOMPOSITION_LEN (18+1) /* codepoints */ |
| |
| /* setters */ |
| |
| void |
| hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_combining_class_func_t combining_class_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_eastasian_width_func_t eastasian_width_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_general_category_func_t general_category_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_mirroring_func_t mirroring_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_script_func_t script_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_compose_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_compose_func_t compose_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_decompose_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_decompose_func_t decompose_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| void |
| hb_unicode_funcs_set_decompose_compatibility_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_decompose_compatibility_func_t decompose_compatibility_func, |
| void *user_data, hb_destroy_func_t destroy); |
| |
| /* accessors */ |
| |
| hb_unicode_combining_class_t |
| hb_unicode_combining_class (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode); |
| |
| unsigned int |
| hb_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode); |
| |
| hb_unicode_general_category_t |
| hb_unicode_general_category (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode); |
| |
| hb_codepoint_t |
| hb_unicode_mirroring (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode); |
| |
| hb_script_t |
| hb_unicode_script (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t unicode); |
| |
| hb_bool_t |
| hb_unicode_compose (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t a, |
| hb_codepoint_t b, |
| hb_codepoint_t *ab); |
| hb_bool_t |
| hb_unicode_decompose (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t ab, |
| hb_codepoint_t *a, |
| hb_codepoint_t *b); |
| |
| unsigned int |
| hb_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs, |
| hb_codepoint_t u, |
| hb_codepoint_t *decomposed); |
| |
| HB_END_DECLS |
| |
| #endif /* HB_UNICODE_H */ |
