201 lines
4.7 KiB
C++
201 lines
4.7 KiB
C++
/*
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* Copyright (C) 2004-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <wtf/text/TextStream.h>
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#include <wtf/text/WTFString.h>
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namespace WTF {
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static constexpr size_t printBufferSize = 100; // large enough for any integer or floating point value in string format, including trailing null character
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static inline bool hasFractions(double val)
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{
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static constexpr double s_epsilon = 0.0001;
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int ival = static_cast<int>(val);
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double dval = static_cast<double>(ival);
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return fabs(val - dval) > s_epsilon;
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}
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TextStream& TextStream::operator<<(bool b)
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{
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return *this << (b ? "1" : "0");
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}
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TextStream& TextStream::operator<<(char c)
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{
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m_text.append(c);
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return *this;
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}
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TextStream& TextStream::operator<<(int i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(unsigned i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(long i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(unsigned long i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(long long i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(unsigned long long i)
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{
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m_text.append(i);
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return *this;
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}
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TextStream& TextStream::operator<<(float f)
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{
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if (m_formattingFlags & Formatting::NumberRespectingIntegers)
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return *this << FormatNumberRespectingIntegers(f);
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m_text.append(FormattedNumber::fixedWidth(f, 2));
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return *this;
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}
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TextStream& TextStream::operator<<(double d)
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{
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if (m_formattingFlags & Formatting::NumberRespectingIntegers)
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return *this << FormatNumberRespectingIntegers(d);
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m_text.append(FormattedNumber::fixedWidth(d, 2));
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return *this;
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}
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TextStream& TextStream::operator<<(const char* string)
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{
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m_text.append(string);
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return *this;
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}
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TextStream& TextStream::operator<<(const void* p)
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{
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char buffer[printBufferSize];
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snprintf(buffer, sizeof(buffer) - 1, "%p", p);
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return *this << buffer;
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}
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TextStream& TextStream::operator<<(const AtomString& string)
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{
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m_text.append(string);
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return *this;
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}
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TextStream& TextStream::operator<<(const String& string)
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{
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m_text.append(string);
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return *this;
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}
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TextStream& TextStream::operator<<(StringView string)
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{
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m_text.append(string);
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return *this;
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}
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TextStream& TextStream::operator<<(const FormatNumberRespectingIntegers& numberToFormat)
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{
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if (hasFractions(numberToFormat.value)) {
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m_text.append(FormattedNumber::fixedWidth(numberToFormat.value, 2));
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return *this;
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}
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m_text.append(static_cast<int>(numberToFormat.value));
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return *this;
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}
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String TextStream::release()
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{
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String result = m_text.toString();
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m_text.clear();
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return result;
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}
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void TextStream::startGroup()
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{
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TextStream& ts = *this;
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if (m_multiLineMode) {
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ts << "\n";
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ts.writeIndent();
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ts << "(";
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ts.increaseIndent();
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} else
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ts << " (";
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}
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void TextStream::endGroup()
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{
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TextStream& ts = *this;
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ts << ")";
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if (m_multiLineMode)
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ts.decreaseIndent();
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}
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void TextStream::nextLine()
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{
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TextStream& ts = *this;
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if (m_multiLineMode) {
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ts << "\n";
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ts.writeIndent();
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} else
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ts << " ";
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}
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void TextStream::writeIndent()
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{
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if (m_multiLineMode)
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WTF::writeIndent(*this, m_indent);
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}
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void writeIndent(TextStream& ts, int indent)
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{
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for (int i = 0; i < indent; ++i)
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ts << " ";
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}
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}
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