diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/platform/text/StringBuilder.cpp')
-rw-r--r-- | src/3rdparty/webkit/WebCore/platform/text/StringBuilder.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/text/StringBuilder.cpp b/src/3rdparty/webkit/WebCore/platform/text/StringBuilder.cpp new file mode 100644 index 0000000..0e9555c --- /dev/null +++ b/src/3rdparty/webkit/WebCore/platform/text/StringBuilder.cpp @@ -0,0 +1,97 @@ +/* + * 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]; + + StringBuffer buffer(m_totalLength); + + UChar* p = buffer.characters(); + 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.characters()); + + return String::adopt(buffer); +} + +} |