/*

 * Copyright (C) 2004 Apple Computer, 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.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR

 * 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 "TextStream.h"

#include "DeprecatedString.h"

#include "Logging.h"

#include "PlatformString.h"

#include <wtf/Vector.h>

namespace WebCore {

const size_t integerOrPointerAsStringBufferSize = 100; // large enough for any integer or pointer in string format, including trailing null character

const char* const precisionFormats[7] = { "%.0f", "%.1f", "%.2f", "%.3f", "%.4f", "%.5f", "%.6f"}; 

const int maxPrecision = 6; // must match size of precisionFormats

const int defaultPrecision = 6; // matches qt and sprintf(.., "%f", ...) behaviour

TextStream::TextStream(DeprecatedString* s)

    : m_hasByteArray(false), m_string(s), m_precision(defaultPrecision)

{

}

TextStream& TextStream::operator<<(char c)

{

    if (m_hasByteArray)

        m_byteArray.append(c);

    if (m_string)

        m_string->append(DeprecatedChar(c));

    return *this;

}

TextStream& TextStream::operator<<(short i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%d", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(unsigned short i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%u", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(int i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%d", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(unsigned i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%u", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(long i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%ld", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(unsigned long i)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%lu", i);

    return *this << buffer;

}

TextStream& TextStream::operator<<(float f)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, precisionFormats[m_precision], f);

    return *this << buffer;

}

TextStream& TextStream::operator<<(double d)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, precisionFormats[m_precision], d);

    return *this << buffer;

}

TextStream& TextStream::operator<<(const char* s)

{

    if (m_hasByteArray) {

        unsigned length = strlen(s);

        unsigned oldSize = m_byteArray.size();

        m_byteArray.resize(oldSize + length);

        memcpy(m_byteArray.data() + oldSize, s, length);

    }

    if (m_string)

        m_string->append(s);

    return *this;

}

TextStream& TextStream::operator<<(const DeprecatedString& s)

{

    if (m_hasByteArray) {

        unsigned length = s.length();

        unsigned oldSize = m_byteArray.size();

        m_byteArray.resize(oldSize + length);

        memcpy(m_byteArray.data() + oldSize, s.latin1(), length);

    }

    if (m_string)

        m_string->append(s);

    return *this;

}

TextStream& TextStream::operator<<(const String& s)

{

    return (*this) << s.deprecatedString();

}

TextStream& TextStream::operator<<(void* p)

{

    char buffer[integerOrPointerAsStringBufferSize];

    sprintf(buffer, "%p", p);

    return *this << buffer;

}

TextStream& TextStream::operator<<(const TextStreamManipulator& m) 

{

    return m(*this);

}

int TextStream::precision(int p) 

{

    int oldPrecision = m_precision;

    if (p >= 0 && p <= maxPrecision)

        m_precision = p;

    return oldPrecision;

}

TextStream &endl(TextStream& stream)

{

    return stream << '\n';

}

}