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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* Copyright (C) 2007 David Smith (catfish.man@gmail.com)
* Copyright (C) 2007, 2008, 2011, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "SpaceSplitString.h"
#include "HTMLParserIdioms.h"
#include <wtf/ASCIICType.h>
#include <wtf/HashMap.h>
#include <wtf/text/AtomicStringHash.h>
#include <wtf/text/StringBuilder.h>
using namespace WTF;
namespace WebCore {
static bool hasNonASCIIOrUpper(const String& string)
{
const UChar* characters = string.characters();
unsigned length = string.length();
bool hasUpper = false;
UChar ored = 0;
for (unsigned i = 0; i < length; i++) {
UChar c = characters[i];
hasUpper |= isASCIIUpper(c);
ored |= c;
}
return hasUpper || (ored & ~0x7F);
}
void SpaceSplitStringData::createVector(const String& string)
{
const UChar* characters = string.characters();
unsigned length = string.length();
unsigned start = 0;
while (true) {
while (start < length && isHTMLSpace(characters[start]))
++start;
if (start >= length)
break;
unsigned end = start + 1;
while (end < length && isNotHTMLSpace(characters[end]))
++end;
m_vector.append(AtomicString(characters + start, end - start));
start = end + 1;
}
}
bool SpaceSplitStringData::containsAll(SpaceSplitStringData& other)
{
if (this == &other)
return true;
size_t thisSize = m_vector.size();
size_t otherSize = other.m_vector.size();
for (size_t i = 0; i < otherSize; ++i) {
const AtomicString& name = other.m_vector[i];
size_t j;
for (j = 0; j < thisSize; ++j) {
if (m_vector[j] == name)
break;
}
if (j == thisSize)
return false;
}
return true;
}
void SpaceSplitStringData::add(const AtomicString& string)
{
ASSERT(hasOneRef());
if (contains(string))
return;
m_vector.append(string);
}
void SpaceSplitStringData::remove(const AtomicString& string)
{
ASSERT(hasOneRef());
size_t position = 0;
while (position < m_vector.size()) {
if (m_vector[position] == string)
m_vector.remove(position);
else
++position;
}
}
void SpaceSplitString::add(const AtomicString& string)
{
ensureUnique();
if (m_data)
m_data->add(string);
}
void SpaceSplitString::remove(const AtomicString& string)
{
ensureUnique();
if (m_data)
m_data->remove(string);
}
typedef HashMap<AtomicString, SpaceSplitStringData*> SpaceSplitStringDataMap;
static SpaceSplitStringDataMap& sharedDataMap()
{
DEFINE_STATIC_LOCAL(SpaceSplitStringDataMap, map, ());
return map;
}
void SpaceSplitString::set(const AtomicString& inputString, bool shouldFoldCase)
{
if (inputString.isNull()) {
clear();
return;
}
String string(inputString.string());
if (shouldFoldCase && hasNonASCIIOrUpper(string))
string = string.foldCase();
m_data = SpaceSplitStringData::create(string);
}
SpaceSplitStringData::~SpaceSplitStringData()
{
if (!m_keyString.isNull())
sharedDataMap().remove(m_keyString);
}
PassRefPtr<SpaceSplitStringData> SpaceSplitStringData::create(const AtomicString& string)
{
SpaceSplitStringData*& data = sharedDataMap().add(string, 0).iterator->second;
if (!data) {
data = new SpaceSplitStringData(string);
return adoptRef(data);
}
return data;
}
PassRefPtr<SpaceSplitStringData> SpaceSplitStringData::createUnique(const SpaceSplitStringData& other)
{
return adoptRef(new SpaceSplitStringData(other));
}
SpaceSplitStringData::SpaceSplitStringData(const AtomicString& string)
: m_keyString(string)
{
ASSERT(!string.isNull());
createVector(string);
}
SpaceSplitStringData::SpaceSplitStringData(const SpaceSplitStringData& other)
: RefCounted<SpaceSplitStringData>()
, m_vector(other.m_vector)
{
// Note that we don't copy m_keyString to indicate to the destructor that there's nothing
// to be removed from the sharedDataMap().
}
} // namespace WebCore
|
