--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qatomicmathematicians.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,352 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <math.h>
+
+#include <qnumeric.h>
+
+#include "qabstractdatetime_p.h"
+#include "qabstractduration_p.h"
+#include "qabstractfloat_p.h"
+#include "qdaytimeduration_p.h"
+#include "qdecimal_p.h"
+#include "qinteger_p.h"
+#include "qpatternistlocale_p.h"
+
+#include "qatomicmathematicians_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+/* The translation strings is place here once, in order to reduce work for translators,
+ * and provide consistency. */
+
+static inline QString idivZeroInvalid()
+{
+ return QtXmlPatterns::tr("Integer division (%1) by zero (%2) is undefined.")
+ .arg(formatKeyword("idiv"))
+ .arg(formatData("0"));
+}
+
+static inline QString divZeroInvalid()
+{
+ return QtXmlPatterns::tr("Division (%1) by zero (%2) is undefined.")
+ .arg(formatKeyword("div"))
+ .arg(formatData("0"));
+}
+
+static inline QString modZeroInvalid()
+{
+ return QtXmlPatterns::tr("Modulus division (%1) by zero (%2) is undefined.")
+ .arg(formatKeyword("mod"))
+ .arg(formatData("0"));
+}
+
+Item DecimalMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+ switch(op)
+ {
+ case Div:
+ {
+ if(o2.as<Numeric>()->toInteger() == 0)
+ {
+ context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else
+ return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
+ }
+ case IDiv:
+ {
+ if(o2.as<Numeric>()->toInteger() == 0)
+ {
+ context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else
+ return Integer::fromValue(static_cast<xsInteger>(o1.as<Numeric>()->toDecimal() /
+ o2.as<Numeric>()->toDecimal()));
+ }
+ case Substract:
+ return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() - o2.as<Numeric>()->toDecimal()));
+ case Mod:
+ {
+ if(o2.as<Numeric>()->toInteger() == 0)
+ {
+ context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else
+ return toItem(Decimal::fromValue(::fmod(o1.as<Numeric>()->toDecimal(), o2.as<Numeric>()->toDecimal())));
+ }
+ case Multiply:
+ return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() * o2.as<Numeric>()->toDecimal()));
+ case Add:
+ return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() + o2.as<Numeric>()->toDecimal()));
+ }
+
+ Q_ASSERT(false);
+ return Item(); /* GCC unbarfer. */
+}
+
+Item IntegerMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+ switch(op)
+ {
+ case Div:
+ if(o2.as<Numeric>()->toInteger() == 0)
+ {
+ context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else /* C++ automatically performs truncation of long integer(xsInteger). */
+ return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
+ case IDiv:
+ {
+ if(o2.as<Numeric>()->toInteger() == 0)
+ {
+ context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else /* C++ automatically performs truncation of long integer(xsInteger). */
+ return Integer::fromValue(o1.as<Numeric>()->toInteger() / o2.as<Numeric>()->toInteger());
+ }
+ case Substract:
+ return Integer::fromValue(o1.as<Numeric>()->toInteger() - o2.as<Numeric>()->toInteger());
+ case Mod:
+ {
+ const xsInteger divisor = o2.as<Numeric>()->toInteger();
+
+ if(divisor == 0)
+ {
+ context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
+ return Item(); /* Silences source code analyzer warning. */
+ }
+ else
+ return Integer::fromValue(o1.as<Numeric>()->toInteger() % divisor);
+ }
+ case Multiply:
+ return Integer::fromValue(o1.as<Numeric>()->toInteger() * o2.as<Numeric>()->toInteger());
+ case Add:
+ return Integer::fromValue(o1.as<Numeric>()->toInteger() + o2.as<Numeric>()->toInteger());
+ }
+
+ Q_ASSERT(false);
+ return Item(); /* GCC unbarfer. */
+}
+
+Item DurationNumericMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+ Q_ASSERT(op == Div || op == Multiply);
+
+ const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
+ const xsDouble dbl = o2.as<Numeric>()->toDouble();
+
+ switch(op)
+ {
+ case Div:
+ {
+ if(qIsInf(dbl))
+ return duration->fromValue(0);
+ else if(qIsNaN(dbl))
+ {
+ context->error(QtXmlPatterns::tr(
+ "Dividing a value of type %1 by %2 (not-a-number) "
+ "is not allowed.")
+ .arg(formatType(context->namePool(),
+ duration->type()))
+ .arg(formatData("NaN")),
+ ReportContext::FOCA0005,
+ this);
+ return Item();
+ }
+ else if(Double::isEqual(dbl, 0))
+ {
+ context->error(QtXmlPatterns::tr(
+ "Dividing a value of type %1 by %2 or %3 (plus or "
+ "minus zero) is not allowed.")
+ .arg(formatType(context->namePool(),
+ duration->type()))
+ .arg(formatData("-0"))
+ .arg(formatData("0")),
+ ReportContext::FODT0002,
+ this);
+ return Item();
+ }
+
+ return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() / dbl));
+ }
+ case Multiply:
+ {
+ if(Double::isEqual(dbl, 0))
+ return duration->fromValue(0);
+ else if(qIsNaN(dbl))
+ {
+ context->error(QtXmlPatterns::tr(
+ "Dividing a value of type %1 by %2 (not-a-number) "
+ "is not allowed.")
+ .arg(formatType(context->namePool(),
+ duration->type()))
+ .arg(formatData("NaN")),
+ ReportContext::FOCA0005,
+ this);
+ return Item();
+ }
+ else if(qIsInf(dbl))
+ {
+ context->error(QtXmlPatterns::tr(
+ "Multiplication of a value of type %1 by %2 or %3 "
+ "(plus or minus infinity) is not allowed.")
+ .arg(formatType(context->namePool(),
+ duration->type()))
+ .arg(formatData("-INF"))
+ .arg(formatData("INF")),
+ ReportContext::FODT0002,
+ this);
+ return Item();
+ }
+
+ return duration->fromValue(static_cast<AbstractDuration::Value>(duration->value() * dbl));
+ }
+ default:
+ {
+ Q_ASSERT(false);
+ return Item(); /* Silence warning. */
+ }
+ }
+}
+
+Item DurationDurationMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+ const AbstractDuration::Ptr duration(o1.as<AbstractDuration>());
+ const AbstractDuration::Value op2 = o2.as<AbstractDuration>()->value();
+
+ switch(op)
+ {
+ case Div:
+ return toItem(Decimal::fromValue(static_cast<xsDecimal>(duration->value()) / op2));
+ case Substract:
+ return duration->fromValue(duration->value() - op2);
+ case Add:
+ return duration->fromValue(duration->value() + op2);
+ default:
+ {
+ Q_ASSERT(false);
+ return Item(); /* Silence warning. */
+ }
+ }
+}
+
+OperandSwitcherMathematician::
+OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician) : m_mather(mathematician)
+{
+ Q_ASSERT(mathematician);
+}
+
+Item OperandSwitcherMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+ return m_mather->calculate(o2, op, o1, context);
+}
+
+
+Item DateTimeDurationMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+{
+ Q_ASSERT(op == Substract || op == Add);
+
+ const AbstractDateTime::Ptr adt(o1.as<AbstractDateTime>());
+ const AbstractDuration::Ptr dur(o2.as<AbstractDuration>());
+ QDateTime dt(adt->toDateTime());
+ //pDebug() << "DateTimeDurationMathematician::calculate():" << dt.toString();
+ //dt.setDateOnly(false);
+ const qint8 sign = (op == Add ? 1 : -1) * (dur->isPositive() ? 1 : -1);
+
+ // TODO milli seconds
+ dt = dt.addSecs(sign * (dur->seconds() + dur->minutes() * 60 + dur->hours() * 60 * 60));
+ dt = dt.addDays(sign * dur->days());
+ dt = dt.addMonths(sign * dur->months());
+ dt = dt.addYears(sign * dur->years());
+
+ QString msg;
+
+ if(AbstractDateTime::isRangeValid(dt.date(), msg))
+ return adt->fromValue(dt);
+ else
+ {
+ context->error(msg, ReportContext::FODT0001,
+ this);
+ return Item();
+ }
+}
+
+Item AbstractDateTimeMathematician::calculate(const Item &o1,
+ const Operator op,
+ const Item &o2,
+ const QExplicitlySharedDataPointer<DynamicContext> &) const
+{
+ Q_ASSERT(op == Substract || op == Add);
+ QDateTime dt1(o1.as<AbstractDateTime>()->toDateTime());
+ QDateTime dt2(o2.as<AbstractDateTime>()->toDateTime());
+
+ const int diff = op == Add ? dt1.secsTo(dt2) : dt2.secsTo(dt1);
+
+ return toItem(DayTimeDuration::fromSeconds(diff));
+}
+
+QT_END_NAMESPACE