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kc3-lang/harfbuzz/src/hb-set.h

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  • Author : Behdad Esfahbod
    Date : 2023-06-03 14:56:47
    Hash : c3e7f451
    Message : Add HB_CODEPOINT_INVALID Fixes https://github.com/harfbuzz/harfbuzz/issues/4262

  • src/hb-set.h
  • /*
     * 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
     */
    
    #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
    #error "Include <hb.h> instead."
    #endif
    
    #ifndef HB_SET_H
    #define HB_SET_H
    
    #include "hb-common.h"
    
    HB_BEGIN_DECLS
    
    
    /**
     * HB_SET_VALUE_INVALID:
     *
     * Unset #hb_set_t value.
     *
     * Since: 0.9.21
     */
    #define HB_SET_VALUE_INVALID HB_CODEPOINT_INVALID
    
    /**
     * hb_set_t:
     *
     * Data type for holding a set of integers. #hb_set_t's are
     * used to gather and contain glyph IDs, Unicode code
     * points, and various other collections of discrete 
     * values.
     *
     **/
    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 (const 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 hb_set_t *
    hb_set_copy (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 void
    hb_set_invert (hb_set_t *set);
    
    HB_EXTERN hb_bool_t
    hb_set_is_inverted (const hb_set_t *set);
    
    HB_EXTERN hb_bool_t
    hb_set_has (const hb_set_t *set,
    	    hb_codepoint_t  codepoint);
    
    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_add_sorted_array (hb_set_t             *set,
    		         const hb_codepoint_t *sorted_codepoints,
    		         unsigned int          num_codepoints);
    
    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 unsigned int
    hb_set_hash (const hb_set_t *set);
    
    HB_EXTERN hb_bool_t
    hb_set_is_subset (const hb_set_t *set,
    		  const hb_set_t *larger_set);
    
    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 HB_SET_VALUE_INVALID if set empty. */
    HB_EXTERN hb_codepoint_t
    hb_set_get_min (const hb_set_t *set);
    
    /* Returns HB_SET_VALUE_INVALID if set empty. */
    HB_EXTERN hb_codepoint_t
    hb_set_get_max (const hb_set_t *set);
    
    /* Pass HB_SET_VALUE_INVALID in to get started. */
    HB_EXTERN hb_bool_t
    hb_set_next (const hb_set_t *set,
    	     hb_codepoint_t *codepoint);
    
    /* Pass HB_SET_VALUE_INVALID in to get started. */
    HB_EXTERN hb_bool_t
    hb_set_previous (const hb_set_t *set,
    		 hb_codepoint_t *codepoint);
    
    /* Pass HB_SET_VALUE_INVALID 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);
    
    /* Pass HB_SET_VALUE_INVALID for first and last to get started. */
    HB_EXTERN hb_bool_t
    hb_set_previous_range (const hb_set_t *set,
    		       hb_codepoint_t *first,
    		       hb_codepoint_t *last);
    
    /* Pass HB_SET_VALUE_INVALID in to get started. */
    HB_EXTERN unsigned int
    hb_set_next_many (const hb_set_t *set,
    		  hb_codepoint_t  codepoint,
    		  hb_codepoint_t *out,
    		  unsigned int    size);
    
    HB_END_DECLS
    
    #endif /* HB_SET_H */