184 lines
4.4 KiB
C
184 lines
4.4 KiB
C
/*
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* Copyright © 2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
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#error "Include <hb.h> instead."
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#endif
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#ifndef HB_SET_H
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#define HB_SET_H
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#include "hb-common.h"
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HB_BEGIN_DECLS
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/**
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* HB_SET_VALUE_INVALID:
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*
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* Unset #hb_set_t value.
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*
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* Since: 0.9.21
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*/
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#define HB_SET_VALUE_INVALID ((hb_codepoint_t) -1)
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/**
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* hb_set_t:
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*
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* Data type for holding a set of integers. #hb_set_t's are
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* used to gather and contain glyph IDs, Unicode code
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* points, and various other collections of discrete
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* values.
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*
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**/
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typedef struct hb_set_t hb_set_t;
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HB_EXTERN hb_set_t *
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hb_set_create (void);
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HB_EXTERN hb_set_t *
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hb_set_get_empty (void);
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HB_EXTERN hb_set_t *
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hb_set_reference (hb_set_t *set);
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HB_EXTERN void
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hb_set_destroy (hb_set_t *set);
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HB_EXTERN hb_bool_t
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hb_set_set_user_data (hb_set_t *set,
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hb_user_data_key_t *key,
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void * data,
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hb_destroy_func_t destroy,
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hb_bool_t replace);
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HB_EXTERN void *
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hb_set_get_user_data (hb_set_t *set,
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hb_user_data_key_t *key);
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/* Returns false if allocation has failed before */
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HB_EXTERN hb_bool_t
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hb_set_allocation_successful (const hb_set_t *set);
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HB_EXTERN hb_set_t *
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hb_set_copy (const hb_set_t *set);
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HB_EXTERN void
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hb_set_clear (hb_set_t *set);
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HB_EXTERN hb_bool_t
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hb_set_is_empty (const hb_set_t *set);
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HB_EXTERN hb_bool_t
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hb_set_has (const hb_set_t *set,
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hb_codepoint_t codepoint);
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HB_EXTERN void
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hb_set_add (hb_set_t *set,
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hb_codepoint_t codepoint);
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HB_EXTERN void
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hb_set_add_range (hb_set_t *set,
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hb_codepoint_t first,
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hb_codepoint_t last);
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HB_EXTERN void
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hb_set_del (hb_set_t *set,
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hb_codepoint_t codepoint);
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HB_EXTERN void
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hb_set_del_range (hb_set_t *set,
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hb_codepoint_t first,
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hb_codepoint_t last);
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HB_EXTERN hb_bool_t
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hb_set_is_equal (const hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN hb_bool_t
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hb_set_is_subset (const hb_set_t *set,
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const hb_set_t *larger_set);
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HB_EXTERN void
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hb_set_set (hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN void
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hb_set_union (hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN void
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hb_set_intersect (hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN void
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hb_set_subtract (hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN void
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hb_set_symmetric_difference (hb_set_t *set,
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const hb_set_t *other);
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HB_EXTERN unsigned int
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hb_set_get_population (const hb_set_t *set);
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/* Returns HB_SET_VALUE_INVALID if set empty. */
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HB_EXTERN hb_codepoint_t
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hb_set_get_min (const hb_set_t *set);
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/* Returns HB_SET_VALUE_INVALID if set empty. */
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HB_EXTERN hb_codepoint_t
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hb_set_get_max (const hb_set_t *set);
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/* Pass HB_SET_VALUE_INVALID in to get started. */
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HB_EXTERN hb_bool_t
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hb_set_next (const hb_set_t *set,
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hb_codepoint_t *codepoint);
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/* Pass HB_SET_VALUE_INVALID in to get started. */
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HB_EXTERN hb_bool_t
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hb_set_previous (const hb_set_t *set,
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hb_codepoint_t *codepoint);
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/* Pass HB_SET_VALUE_INVALID for first and last to get started. */
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HB_EXTERN hb_bool_t
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hb_set_next_range (const hb_set_t *set,
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hb_codepoint_t *first,
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hb_codepoint_t *last);
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/* Pass HB_SET_VALUE_INVALID for first and last to get started. */
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HB_EXTERN hb_bool_t
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hb_set_previous_range (const hb_set_t *set,
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hb_codepoint_t *first,
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hb_codepoint_t *last);
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HB_END_DECLS
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#endif /* HB_SET_H */
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