| 1 | /* |
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| 2 | * Copyright © 2012 Google, Inc. |
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| 3 | * |
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| 4 | * This is part of HarfBuzz, a text shaping library. |
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| 5 | * |
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| 6 | * Permission is hereby granted, without written agreement and without |
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| 7 | * license or royalty fees, to use, copy, modify, and distribute this |
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| 8 | * software and its documentation for any purpose, provided that the |
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| 9 | * above copyright notice and the following two paragraphs appear in |
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| 10 | * all copies of this software. |
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| 11 | * |
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| 12 | * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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| 13 | * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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| 14 | * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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| 15 | * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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| 16 | * DAMAGE. |
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| 17 | * |
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| 18 | * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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| 19 | * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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| 21 | * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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| 22 | * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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| 23 | * |
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| 24 | * Google Author(s): Behdad Esfahbod |
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| 25 | */ |
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| 26 | |
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| 27 | #ifndef HB_H_IN |
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| 28 | #error "Include <hb.h> instead." |
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| 29 | #endif |
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| 30 | |
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| 31 | #ifndef HB_SET_H |
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| 32 | #define HB_SET_H |
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| 33 | |
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| 34 | #include "hb-common.h" |
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| 35 | |
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| 36 | HB_BEGIN_DECLS |
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| 37 | |
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| 38 | |
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| 39 | /* |
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| 40 | * Since: 0.9.21 |
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| 41 | */ |
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| 42 | #define HB_SET_VALUE_INVALID ((hb_codepoint_t) -1) |
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| 43 | |
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| 44 | typedef struct hb_set_t hb_set_t; |
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| 45 | |
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| 46 | |
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| 47 | HB_EXTERN hb_set_t * |
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| 48 | hb_set_create (void); |
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| 49 | |
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| 50 | HB_EXTERN hb_set_t * |
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| 51 | hb_set_get_empty (void); |
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| 52 | |
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| 53 | HB_EXTERN hb_set_t * |
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| 54 | hb_set_reference (hb_set_t *set); |
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| 55 | |
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| 56 | HB_EXTERN void |
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| 57 | hb_set_destroy (hb_set_t *set); |
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| 58 | |
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| 59 | HB_EXTERN hb_bool_t |
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| 60 | hb_set_set_user_data (hb_set_t *set, |
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| 61 | hb_user_data_key_t *key, |
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| 62 | void * data, |
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| 63 | hb_destroy_func_t destroy, |
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| 64 | hb_bool_t replace); |
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| 65 | |
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| 66 | HB_EXTERN void * |
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| 67 | hb_set_get_user_data (hb_set_t *set, |
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| 68 | hb_user_data_key_t *key); |
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| 69 | |
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| 70 | |
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| 71 | /* Returns false if allocation has failed before */ |
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| 72 | HB_EXTERN hb_bool_t |
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| 73 | hb_set_allocation_successful (const hb_set_t *set); |
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| 74 | |
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| 75 | HB_EXTERN void |
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| 76 | hb_set_clear (hb_set_t *set); |
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| 77 | |
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| 78 | HB_EXTERN hb_bool_t |
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| 79 | hb_set_is_empty (const hb_set_t *set); |
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| 80 | |
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| 81 | HB_EXTERN hb_bool_t |
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| 82 | hb_set_has (const hb_set_t *set, |
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| 83 | hb_codepoint_t codepoint); |
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| 84 | |
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| 85 | /* Right now limited to 16-bit integers. Eventually will do full codepoint range, sans -1 |
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| 86 | * which we will use as a sentinel. */ |
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| 87 | HB_EXTERN void |
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| 88 | hb_set_add (hb_set_t *set, |
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| 89 | hb_codepoint_t codepoint); |
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| 90 | |
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| 91 | HB_EXTERN void |
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| 92 | hb_set_add_range (hb_set_t *set, |
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| 93 | hb_codepoint_t first, |
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| 94 | hb_codepoint_t last); |
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| 95 | |
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| 96 | HB_EXTERN void |
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| 97 | hb_set_del (hb_set_t *set, |
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| 98 | hb_codepoint_t codepoint); |
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| 99 | |
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| 100 | HB_EXTERN void |
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| 101 | hb_set_del_range (hb_set_t *set, |
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| 102 | hb_codepoint_t first, |
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| 103 | hb_codepoint_t last); |
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| 104 | |
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| 105 | HB_EXTERN hb_bool_t |
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| 106 | hb_set_is_equal (const hb_set_t *set, |
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| 107 | const hb_set_t *other); |
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| 108 | |
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| 109 | HB_EXTERN void |
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| 110 | hb_set_set (hb_set_t *set, |
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| 111 | const hb_set_t *other); |
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| 112 | |
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| 113 | HB_EXTERN void |
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| 114 | hb_set_union (hb_set_t *set, |
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| 115 | const hb_set_t *other); |
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| 116 | |
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| 117 | HB_EXTERN void |
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| 118 | hb_set_intersect (hb_set_t *set, |
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| 119 | const hb_set_t *other); |
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| 120 | |
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| 121 | HB_EXTERN void |
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| 122 | hb_set_subtract (hb_set_t *set, |
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| 123 | const hb_set_t *other); |
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| 124 | |
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| 125 | HB_EXTERN void |
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| 126 | hb_set_symmetric_difference (hb_set_t *set, |
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| 127 | const hb_set_t *other); |
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| 128 | |
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| 129 | HB_EXTERN unsigned int |
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| 130 | hb_set_get_population (const hb_set_t *set); |
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| 131 | |
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| 132 | /* Returns -1 if set empty. */ |
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| 133 | HB_EXTERN hb_codepoint_t |
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| 134 | hb_set_get_min (const hb_set_t *set); |
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| 135 | |
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| 136 | /* Returns -1 if set empty. */ |
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| 137 | HB_EXTERN hb_codepoint_t |
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| 138 | hb_set_get_max (const hb_set_t *set); |
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| 139 | |
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| 140 | /* Pass -1 in to get started. */ |
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| 141 | HB_EXTERN hb_bool_t |
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| 142 | hb_set_next (const hb_set_t *set, |
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| 143 | hb_codepoint_t *codepoint); |
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| 144 | |
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| 145 | /* Pass -1 for first and last to get started. */ |
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| 146 | HB_EXTERN hb_bool_t |
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| 147 | hb_set_next_range (const hb_set_t *set, |
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| 148 | hb_codepoint_t *first, |
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| 149 | hb_codepoint_t *last); |
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| 150 | |
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| 151 | |
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| 152 | HB_END_DECLS |
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| 153 | |
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| 154 | #endif /* HB_SET_H */ |
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| 155 | |
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