/*

 * 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

/*

 * Since: 0.9.21

 */

#define HB_SET_VALUE_INVALID ((hb_codepoint_t) -1)

typedef struct hb_set_t hb_set_t;

HB_EXTERN hb_set_t *

hb_set_create (void);

HB_EXTERN hb_set_t *

hb_set_get_empty (void);

HB_EXTERN hb_set_t *

hb_set_reference (hb_set_t *set);

HB_EXTERN void

hb_set_destroy (hb_set_t *set);

HB_EXTERN 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);

HB_EXTERN void *

hb_set_get_user_data (hb_set_t           *set,

                      hb_user_data_key_t *key);

/* Returns false if allocation has failed before */

HB_EXTERN hb_bool_t

hb_set_allocation_successful (const hb_set_t *set);

HB_EXTERN void

hb_set_clear (hb_set_t *set);

HB_EXTERN hb_bool_t

hb_set_is_empty (const hb_set_t *set);

HB_EXTERN hb_bool_t

hb_set_has (const 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. */

HB_EXTERN void

hb_set_add (hb_set_t       *set,

            hb_codepoint_t  codepoint);

HB_EXTERN void

hb_set_add_range (hb_set_t       *set,

                  hb_codepoint_t  first,

                  hb_codepoint_t  last);

HB_EXTERN void

hb_set_del (hb_set_t       *set,

            hb_codepoint_t  codepoint);

HB_EXTERN void

hb_set_del_range (hb_set_t       *set,

                  hb_codepoint_t  first,

                  hb_codepoint_t  last);

HB_EXTERN hb_bool_t

hb_set_is_equal (const hb_set_t *set,

                 const hb_set_t *other);

HB_EXTERN void

hb_set_set (hb_set_t       *set,

            const hb_set_t *other);

HB_EXTERN void

hb_set_union (hb_set_t       *set,

              const hb_set_t *other);

HB_EXTERN void

hb_set_intersect (hb_set_t       *set,

                  const hb_set_t *other);

HB_EXTERN void

hb_set_subtract (hb_set_t       *set,

                 const hb_set_t *other);

HB_EXTERN void

hb_set_symmetric_difference (hb_set_t       *set,

                             const hb_set_t *other);

HB_EXTERN unsigned int

hb_set_get_population (const hb_set_t *set);

/* Returns -1 if set empty. */

HB_EXTERN hb_codepoint_t

hb_set_get_min (const hb_set_t *set);

/* Returns -1 if set empty. */

HB_EXTERN hb_codepoint_t

hb_set_get_max (const hb_set_t *set);

/* Pass -1 in to get started. */

HB_EXTERN hb_bool_t

hb_set_next (const hb_set_t *set,

             hb_codepoint_t *codepoint);

/* Pass -1 for first and last to get started. */

HB_EXTERN hb_bool_t

hb_set_next_range (const hb_set_t *set,

                   hb_codepoint_t *first,

                   hb_codepoint_t *last);

HB_END_DECLS

#endif /* HB_SET_H */