/* | |
* Copyright (C) 2008 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
* its contributors may be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#include "config.h" | |
#include "StringBuilder.h" | |
#include "StringBuffer.h" | |
namespace WebCore { | |
void StringBuilder::append(const String& string) | |
{ | |
if (string.isNull()) | |
return; | |
if (m_totalLength == UINT_MAX) | |
m_totalLength = string.length(); | |
else | |
m_totalLength += string.length(); | |
if (!string.isEmpty()) | |
m_strings.append(string); | |
} | |
void StringBuilder::append(UChar c) | |
{ | |
if (m_totalLength == UINT_MAX) | |
m_totalLength = 1; | |
else | |
m_totalLength += 1; | |
m_strings.append(String(&c, 1)); | |
} | |
void StringBuilder::append(char c) | |
{ | |
if (m_totalLength == UINT_MAX) | |
m_totalLength = 1; | |
else | |
m_totalLength += 1; | |
m_strings.append(String(&c, 1)); | |
} | |
String StringBuilder::toString() const | |
{ | |
if (isNull()) | |
return String(); | |
unsigned count = m_strings.size(); | |
if (!count) | |
return String(StringImpl::empty()); | |
if (count == 1) | |
return m_strings[0]; | |
UChar* buffer; | |
String result = String::createUninitialized(m_totalLength, buffer); | |
UChar* p = buffer; | |
for (unsigned i = 0; i < count; ++i) { | |
StringImpl* string = m_strings[i].impl(); | |
unsigned length = string->length(); | |
memcpy(p, string->characters(), length * 2); | |
p += length; | |
} | |
ASSERT(p == m_totalLength + buffer); | |
return result; | |
} | |
void StringBuilder::clear() | |
{ | |
m_totalLength = UINT_MAX; | |
m_strings.clear(); | |
} | |
unsigned StringBuilder::length() const | |
{ | |
if (m_totalLength == UINT_MAX) | |
return 0; | |
return m_totalLength; | |
} | |
} |