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