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/*
* Copyright © 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.
*
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_H_IN
#error "Include <hb.h> instead."
#endif
#ifndef HB_SET_H
#define HB_SET_H
#include "hb-common.h"
HB_BEGIN_DECLS
typedef struct _hb_set_t hb_set_t;
hb_set_t *
hb_set_create (void);
hb_set_t *
hb_set_get_empty (void);
hb_set_t *
hb_set_reference (hb_set_t *set);
void
hb_set_destroy (hb_set_t *set);
hb_bool_t
hb_set_set_user_data (hb_set_t *set,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace);
void *
hb_set_get_user_data (hb_set_t *set,
hb_user_data_key_t *key);
/* Returns FALSE if allocation has failed before */
hb_bool_t
hb_set_allocation_successful (hb_set_t *set);
void
hb_set_clear (hb_set_t *set);
hb_bool_t
hb_set_empty (hb_set_t *set);
hb_bool_t
hb_set_has (hb_set_t *set,
hb_codepoint_t codepoint);
/* Right now limited to 16-bit integers. Eventually will do full codepoint range, sans -1
* which we will use as a sentinel. */
void
hb_set_add (hb_set_t *set,
hb_codepoint_t codepoint);
void
hb_set_del (hb_set_t *set,
hb_codepoint_t codepoint);
hb_bool_t
hb_set_equal (hb_set_t *set,
hb_set_t *other);
void
hb_set_set (hb_set_t *set,
hb_set_t *other);
void
hb_set_union (hb_set_t *set,
hb_set_t *other);
void
hb_set_intersect (hb_set_t *set,
hb_set_t *other);
void
hb_set_subtract (hb_set_t *set,
hb_set_t *other);
void
hb_set_symmetric_difference (hb_set_t *set,
hb_set_t *other);
/* Returns -1 if set empty. */
hb_codepoint_t
hb_set_min (hb_set_t *set);
/* Returns -1 if set empty. */
hb_codepoint_t
hb_set_max (hb_set_t *set);
/* Pass -1 in to get started. */
hb_bool_t
hb_set_next (hb_set_t *set,
hb_codepoint_t *codepoint);
/* TODO: Add faster iteration API? */
HB_END_DECLS
#endif /* HB_SET_H */
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