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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <math.h>
#include "qabstractfloat_p.h"
#include "qatomictype_p.h"
#include "qbuiltintypes_p.h"
#include "qvalidationerror_p.h"
#include "qdecimal_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Decimal::Decimal(const xsDecimal num) : m_value(num)
{
}
Decimal::Ptr Decimal::fromValue(const xsDecimal num)
{
return Decimal::Ptr(new Decimal(num));
}
AtomicValue::Ptr Decimal::fromLexical(const QString &strNumeric)
{
/* QString::toDouble() handles the whitespace facet. */
const QString strNumericTrimmed(strNumeric.trimmed());
/* Block these out, as QString::toDouble() supports them. */
if(strNumericTrimmed.compare(QLatin1String("-INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("+INF"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.compare(QLatin1String("nan"), Qt::CaseInsensitive) == 0
|| strNumericTrimmed.contains(QLatin1Char('e'))
|| strNumericTrimmed.contains(QLatin1Char('E')))
{
return ValidationError::createError();
}
bool conversionOk = false;
const xsDecimal num = strNumericTrimmed.toDouble(&conversionOk);
if(conversionOk)
return AtomicValue::Ptr(new Decimal(num));
else
return ValidationError::createError();
}
bool Decimal::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const
{
return !Double::isEqual(m_value, 0.0);
}
QString Decimal::stringValue() const
{
return toString(m_value);
}
QString Decimal::toString(const xsDecimal value)
{
/*
* If SV is in the value space of xs:integer, that is, if there are no
* significant digits after the decimal point, then the value is converted
* from an xs:decimal to an xs:integer and the resulting xs:integer is
* converted to an xs:string using the rule above.
*/
if(Double::isEqual(::floor(value), value))
{
/* The static_cast is identical to Integer::toInteger(). */
return QString::number(static_cast<xsInteger>(value));
}
else
{
int sign;
int decimalPoint;
char *result = 0;
static_cast<void>(qdtoa(value, 0, 0, &decimalPoint, &sign, 0, &result));
/* If the copy constructor is used instead of QString::operator=(),
* it doesn't compile. I have no idea why. */
const QString qret(QString::fromLatin1(result));
delete result;
QString valueAsString;
if(sign)
valueAsString += QLatin1Char('-');
if(0 < decimalPoint)
{
valueAsString += qret.left(decimalPoint);
valueAsString += QLatin1Char('.');
if (qret.size() <= decimalPoint)
valueAsString += QLatin1Char('0');
else
valueAsString += qret.mid(decimalPoint);
}
else
{
valueAsString += QLatin1Char('0');
valueAsString += QLatin1Char('.');
for(int d = decimalPoint; d < 0; d++)
valueAsString += QLatin1Char('0');
valueAsString += qret;
}
return valueAsString;
}
}
ItemType::Ptr Decimal::type() const
{
return BuiltinTypes::xsDecimal;
}
xsDouble Decimal::toDouble() const
{
return static_cast<xsDouble>(m_value);
}
xsInteger Decimal::toInteger() const
{
return static_cast<xsInteger>(m_value);
}
xsFloat Decimal::toFloat() const
{
return static_cast<xsFloat>(m_value);
}
xsDecimal Decimal::toDecimal() const
{
return m_value;
}
qulonglong Decimal::toUnsignedInteger() const
{
Q_ASSERT_X(false, Q_FUNC_INFO,
"It makes no sense to call this function, see Numeric::toUnsignedInteger().");
return 0;
}
Numeric::Ptr Decimal::round() const
{
return Numeric::Ptr(new Decimal(roundFloat(m_value)));
}
Numeric::Ptr Decimal::roundHalfToEven(const xsInteger /*scale*/) const
{
return Numeric::Ptr();
}
Numeric::Ptr Decimal::floor() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(::floor(m_value))));
}
Numeric::Ptr Decimal::ceiling() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(ceil(m_value))));
}
Numeric::Ptr Decimal::abs() const
{
return Numeric::Ptr(new Decimal(static_cast<xsDecimal>(fabs(m_value))));
}
bool Decimal::isNaN() const
{
return false;
}
bool Decimal::isInf() const
{
return false;
}
Item Decimal::toNegated() const
{
if(AbstractFloat<true>::isEqual(m_value, 0.0))
return fromValue(0).data();
else
return fromValue(-m_value).data();
}
bool Decimal::isSigned() const
{
Q_ASSERT_X(false, Q_FUNC_INFO,
"It makes no sense to call this function, see Numeric::isSigned().");
return false;
}
QT_END_NAMESPACE
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