1 /*
2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "BString.h"
28
29 #include "AtomicString.h"
30 #include "KURL.h"
31 #include "PlatformString.h"
32 #include <tchar.h>
33 #include <windows.h>
34
35 #if PLATFORM(CF)
36 #include <CoreFoundation/CoreFoundation.h>
37 #endif
38
39 using namespace JSC;
40
41 namespace WebCore {
42
BString()43 BString::BString()
44 : m_bstr(0)
45 {
46 }
47
BString(const wchar_t * characters)48 BString::BString(const wchar_t* characters)
49 {
50 if (!characters)
51 m_bstr = 0;
52 else
53 m_bstr = SysAllocString(characters);
54 }
55
BString(const wchar_t * characters,size_t length)56 BString::BString(const wchar_t* characters, size_t length)
57 {
58 if (!characters)
59 m_bstr = 0;
60 else
61 m_bstr = SysAllocStringLen(characters, length);
62 }
63
BString(const String & s)64 BString::BString(const String& s)
65 {
66 if (s.isNull())
67 m_bstr = 0;
68 else
69 m_bstr = SysAllocStringLen(s.characters(), s.length());
70 }
71
BString(const KURL & url)72 BString::BString(const KURL& url)
73 {
74 if (url.isNull())
75 m_bstr = 0;
76 else
77 m_bstr = SysAllocStringLen(url.string().characters(), url.string().length());
78 }
79
BString(const AtomicString & s)80 BString::BString(const AtomicString& s)
81 {
82 if (s.isNull())
83 m_bstr = 0;
84 else
85 m_bstr = SysAllocStringLen(s.characters(), s.length());
86 }
87
BString(const UString & s)88 BString::BString(const UString& s)
89 {
90 if (s.isNull())
91 m_bstr = 0;
92 else
93 m_bstr = SysAllocStringLen(s.data(), s.size());
94 }
95
96 #if PLATFORM(CF)
BString(CFStringRef cfstr)97 BString::BString(CFStringRef cfstr)
98 : m_bstr(0)
99 {
100 if (!cfstr)
101 return;
102
103 const UniChar* uniChars = CFStringGetCharactersPtr(cfstr);
104 if (uniChars) {
105 m_bstr = SysAllocStringLen((LPCTSTR)uniChars, CFStringGetLength(cfstr));
106 return;
107 }
108
109 CFIndex length = CFStringGetLength(cfstr);
110 m_bstr = SysAllocStringLen(0, length);
111 CFStringGetCharacters(cfstr, CFRangeMake(0, length), (UniChar*)m_bstr);
112 m_bstr[length] = 0;
113 }
114 #endif
115
~BString()116 BString::~BString()
117 {
118 SysFreeString(m_bstr);
119 }
120
BString(const BString & other)121 BString::BString(const BString& other)
122 {
123 if (!other.m_bstr)
124 m_bstr = 0;
125 else
126 m_bstr = SysAllocString(other.m_bstr);
127 }
128
adoptBSTR(BSTR bstr)129 void BString::adoptBSTR(BSTR bstr)
130 {
131 if (m_bstr)
132 SysFreeString(m_bstr);
133 m_bstr = bstr;
134 }
135
operator =(const BString & other)136 BString& BString::operator=(const BString& other)
137 {
138 if (this != &other)
139 *this = other.m_bstr;
140 return *this;
141 }
142
operator =(const BSTR & other)143 BString& BString::operator=(const BSTR& other)
144 {
145 if (other != m_bstr) {
146 SysFreeString(m_bstr);
147 m_bstr = other ? SysAllocString(other) : 0;
148 }
149
150 return *this;
151 }
152
operator ==(const BString & a,const BString & b)153 bool operator ==(const BString& a, const BString& b)
154 {
155 if (SysStringLen((BSTR)a) != SysStringLen((BSTR)b))
156 return false;
157 if (!(BSTR)a && !(BSTR)b)
158 return true;
159 if (!(BSTR)a || !(BSTR)b)
160 return false;
161 return !_tcscmp((BSTR)a, (BSTR)b);
162 }
163
operator !=(const BString & a,const BString & b)164 bool operator !=(const BString& a, const BString& b)
165 {
166 return !(a==b);
167 }
168
operator ==(const BString & a,BSTR b)169 bool operator ==(const BString& a, BSTR b)
170 {
171 if (SysStringLen((BSTR)a) != SysStringLen(b))
172 return false;
173 if (!(BSTR)a && !b)
174 return true;
175 if (!(BSTR)a || !b)
176 return false;
177 return !_tcscmp((BSTR)a, b);
178 }
179
operator !=(const BString & a,BSTR b)180 bool operator !=(const BString& a, BSTR b)
181 {
182 return !(a==b);
183 }
184
operator ==(BSTR a,const BString & b)185 bool operator ==(BSTR a, const BString& b)
186 {
187 if (SysStringLen(a) != SysStringLen((BSTR)b))
188 return false;
189 if (!a && !(BSTR)b)
190 return true;
191 if (!a || !(BSTR)b)
192 return false;
193 return !_tcscmp(a, (BSTR)b);
194 }
195
operator !=(BSTR a,const BString & b)196 bool operator !=(BSTR a, const BString& b)
197 {
198 return !(a==b);
199 }
200
201 }
202