diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/data/qatomicmathematicians.cpp --- /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 + +#include + +#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 &context) const +{ + switch(op) + { + case Div: + { + if(o2.as()->toInteger() == 0) + { + context->error(divZeroInvalid(), ReportContext::FOAR0001, this); + return Item(); /* Silences source code analyzer warning. */ + } + else + return toItem(Decimal::fromValue(o1.as()->toDecimal() / o2.as()->toDecimal())); + } + case IDiv: + { + if(o2.as()->toInteger() == 0) + { + context->error(idivZeroInvalid(), ReportContext::FOAR0001, this); + return Item(); /* Silences source code analyzer warning. */ + } + else + return Integer::fromValue(static_cast(o1.as()->toDecimal() / + o2.as()->toDecimal())); + } + case Substract: + return toItem(Decimal::fromValue(o1.as()->toDecimal() - o2.as()->toDecimal())); + case Mod: + { + if(o2.as()->toInteger() == 0) + { + context->error(modZeroInvalid(), ReportContext::FOAR0001, this); + return Item(); /* Silences source code analyzer warning. */ + } + else + return toItem(Decimal::fromValue(::fmod(o1.as()->toDecimal(), o2.as()->toDecimal()))); + } + case Multiply: + return toItem(Decimal::fromValue(o1.as()->toDecimal() * o2.as()->toDecimal())); + case Add: + return toItem(Decimal::fromValue(o1.as()->toDecimal() + o2.as()->toDecimal())); + } + + Q_ASSERT(false); + return Item(); /* GCC unbarfer. */ +} + +Item IntegerMathematician::calculate(const Item &o1, + const Operator op, + const Item &o2, + const QExplicitlySharedDataPointer &context) const +{ + switch(op) + { + case Div: + if(o2.as()->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()->toDecimal() / o2.as()->toDecimal())); + case IDiv: + { + if(o2.as()->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()->toInteger() / o2.as()->toInteger()); + } + case Substract: + return Integer::fromValue(o1.as()->toInteger() - o2.as()->toInteger()); + case Mod: + { + const xsInteger divisor = o2.as()->toInteger(); + + if(divisor == 0) + { + context->error(modZeroInvalid(), ReportContext::FOAR0001, this); + return Item(); /* Silences source code analyzer warning. */ + } + else + return Integer::fromValue(o1.as()->toInteger() % divisor); + } + case Multiply: + return Integer::fromValue(o1.as()->toInteger() * o2.as()->toInteger()); + case Add: + return Integer::fromValue(o1.as()->toInteger() + o2.as()->toInteger()); + } + + Q_ASSERT(false); + return Item(); /* GCC unbarfer. */ +} + +Item DurationNumericMathematician::calculate(const Item &o1, + const Operator op, + const Item &o2, + const QExplicitlySharedDataPointer &context) const +{ + Q_ASSERT(op == Div || op == Multiply); + + const AbstractDuration::Ptr duration(o1.as()); + const xsDouble dbl = o2.as()->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(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(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 &) const +{ + const AbstractDuration::Ptr duration(o1.as()); + const AbstractDuration::Value op2 = o2.as()->value(); + + switch(op) + { + case Div: + return toItem(Decimal::fromValue(static_cast(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 &context) const +{ + return m_mather->calculate(o2, op, o1, context); +} + + +Item DateTimeDurationMathematician::calculate(const Item &o1, + const Operator op, + const Item &o2, + const QExplicitlySharedDataPointer &context) const +{ + Q_ASSERT(op == Substract || op == Add); + + const AbstractDateTime::Ptr adt(o1.as()); + const AbstractDuration::Ptr dur(o2.as()); + 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 &) const +{ + Q_ASSERT(op == Substract || op == Add); + QDateTime dt1(o1.as()->toDateTime()); + QDateTime dt2(o2.as()->toDateTime()); + + const int diff = op == Add ? dt1.secsTo(dt2) : dt2.secsTo(dt1); + + return toItem(DayTimeDuration::fromSeconds(diff)); +} + +QT_END_NAMESPACE