1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright © 2022 Behdad Esfahbod
*
* 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.
*/
#ifndef HB_MULTIMAP_HH
#define HB_MULTIMAP_HH
#include "hb.hh"
#include "hb-map.hh"
#include "hb-vector.hh"
/*
* hb_multimap_t
*/
struct hb_multimap_t
{
void add (hb_codepoint_t k, hb_codepoint_t v)
{
hb_vector_t<hb_codepoint_t> *m;
if (multiples.has (k, &m))
{
m->push (v);
return;
}
hb_codepoint_t *old_v;
if (singulars.has (k, &old_v))
{
hb_codepoint_t old = *old_v;
singulars.del (k);
multiples.set (k, hb_vector_t<hb_codepoint_t> {old, v});
return;
}
singulars.set (k, v);
}
hb_array_t<const hb_codepoint_t> get (hb_codepoint_t k) const
{
const hb_codepoint_t *v;
if (singulars.has (k, &v))
return hb_array (v, 1);
hb_vector_t<hb_codepoint_t> *m;
if (multiples.has (k, &m))
return m->as_array ();
return hb_array_t<const hb_codepoint_t> ();
}
bool in_error () const
{
if (singulars.in_error () || multiples.in_error ())
return true;
for (const auto &m : multiples.values_ref ())
if (m.in_error ())
return true;
return false;
}
void alloc (unsigned size)
{
singulars.alloc (size);
}
protected:
hb_map_t singulars;
hb_hashmap_t<hb_codepoint_t, hb_vector_t<hb_codepoint_t>> multiples;
};
#endif /* HB_MULTIMAP_HH */
|
