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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/text/character_property_data.h"
#include <stdio.h>
#include <cassert>
#include <cstring>
#include <memory>
#include "third_party/blink/renderer/platform/text/character_property.h"
#if !defined(USING_SYSTEM_ICU)
#define MUTEX_H // Prevent compile failure of utrie2.h on Windows
#include <utrie2.h>
#endif
namespace blink {
namespace {
#if defined(USING_SYSTEM_ICU)
static void GenerateCharacterPropertyData(FILE*) {}
#else
const UChar32 kMaxCodepoint = 0x10FFFF;
#define ARRAY_LENGTH(a) (sizeof(a) / sizeof((a)[0]))
static void SetRanges(CharacterProperty* values,
const UChar32* ranges,
size_t length,
CharacterProperty value) {
assert(length % 2 == 0);
const UChar32* end = ranges + length;
for (; ranges != end; ranges += 2) {
assert(ranges[0] <= ranges[1] && ranges[1] <= kMaxCodepoint);
for (UChar32 c = ranges[0]; c <= ranges[1]; c++)
values[c] |= value;
}
}
static void SetValues(CharacterProperty* values,
const UChar32* begin,
size_t length,
CharacterProperty value) {
const UChar32* end = begin + length;
for (; begin != end; begin++) {
assert(*begin <= kMaxCodepoint);
values[*begin] |= value;
}
}
static void GenerateUTrieSerialized(FILE* fp, int32_t size, uint8_t* array) {
fprintf(fp,
"#include <cstdint>\n\n"
"namespace blink {\n\n"
"extern const int32_t kSerializedCharacterDataSize = %d;\n"
// The utrie2_openFromSerialized function requires character data to
// be aligned to 4 bytes.
"alignas(4) extern const uint8_t kSerializedCharacterData[] = {",
size);
for (int32_t i = 0; i < size;) {
fprintf(fp, "\n ");
for (int col = 0; col < 16 && i < size; col++, i++)
fprintf(fp, " 0x%02X,", array[i]);
}
fprintf(fp,
"\n};\n\n"
"} // namespace blink\n");
}
static void GenerateCharacterPropertyData(FILE* fp) {
// Create a value array of all possible code points.
const UChar32 kSize = kMaxCodepoint + 1;
std::unique_ptr<CharacterProperty[]> values(new CharacterProperty[kSize]);
memset(values.get(), 0, sizeof(CharacterProperty) * kSize);
#define SET(name) \
SetRanges(values.get(), name##Ranges, ARRAY_LENGTH(name##Ranges), \
CharacterProperty::name); \
SetValues(values.get(), name##Array, ARRAY_LENGTH(name##Array), \
CharacterProperty::name);
SET(kIsCJKIdeographOrSymbol);
SET(kIsUprightInMixedVertical);
SET(kIsPotentialCustomElementNameChar);
SET(kIsBidiControl);
SET(kIsHangul);
// Create a trie from the value array.
UErrorCode error = U_ZERO_ERROR;
UTrie2* trie = utrie2_open(0, 0, &error);
assert(error == U_ZERO_ERROR);
UChar32 start = 0;
CharacterProperty value = values[0];
for (UChar32 c = 1;; c++) {
if (c < kSize && values[c] == value)
continue;
if (static_cast<uint32_t>(value)) {
utrie2_setRange32(trie, start, c - 1, static_cast<uint32_t>(value), TRUE,
&error);
assert(error == U_ZERO_ERROR);
}
if (c >= kSize)
break;
start = c;
value = values[start];
}
// Freeze and serialize the trie to a byte array.
utrie2_freeze(trie, UTrie2ValueBits::UTRIE2_16_VALUE_BITS, &error);
assert(error == U_ZERO_ERROR);
int32_t serialized_size = utrie2_serialize(trie, nullptr, 0, &error);
error = U_ZERO_ERROR;
std::unique_ptr<uint8_t[]> serialized(new uint8_t[serialized_size]);
serialized_size =
utrie2_serialize(trie, serialized.get(), serialized_size, &error);
assert(error == U_ZERO_ERROR);
GenerateUTrieSerialized(fp, serialized_size, serialized.get());
utrie2_close(trie);
}
#endif
} // namespace
} // namespace blink
int main(int argc, char** argv) {
// Write the serialized array to the source file.
if (argc <= 1) {
blink::GenerateCharacterPropertyData(stdout);
} else {
FILE* fp = fopen(argv[1], "wb");
blink::GenerateCharacterPropertyData(fp);
fclose(fp);
}
return 0;
}
|
