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Diffstat (limited to 'src/xmlpatterns/data/qabstractdatetime.cpp')
| -rw-r--r-- | src/xmlpatterns/data/qabstractdatetime.cpp | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/src/xmlpatterns/data/qabstractdatetime.cpp b/src/xmlpatterns/data/qabstractdatetime.cpp new file mode 100644 index 0000000..900a516 --- /dev/null +++ b/src/xmlpatterns/data/qabstractdatetime.cpp @@ -0,0 +1,400 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 <QStringList> + +#include "qbuiltintypes_p.h" +#include "qitem_p.h" +#include "qpatternistlocale_p.h" +#include "qvalidationerror_p.h" + +#include "qabstractdatetime_p.h" + +QT_BEGIN_NAMESPACE + +using namespace QPatternist; + +AbstractDateTime::AbstractDateTime(const QDateTime &dateTime) : m_dateTime(dateTime) +{ + Q_ASSERT(dateTime.isValid()); +} + +#define badData(msg) errorMessage = ValidationError::createError(msg); return QDateTime() +#define getCapt(sym) ((captTable.sym == -1) ? QString() : capts.at(captTable.sym)) +#define getSafeCapt(sym) ((captTable.sym == -1) ? QString() : capts.value(captTable.sym)) + +QDateTime AbstractDateTime::create(AtomicValue::Ptr &errorMessage, + const QString &lexicalSource, + const CaptureTable &captTable) +{ + QRegExp myExp(captTable.regExp); + + if(!myExp.exactMatch(lexicalSource)) + { + badData(QString()); + } + + const QStringList capts(myExp.capturedTexts()); + const QString yearStr(getCapt(year)); + + if(yearStr.size() > 4 && yearStr.at(0) == QLatin1Char('0')) + { + badData(QtXmlPatterns::tr("Year %1 is invalid because it begins with %2.") + .arg(formatData(yearStr)).arg(formatData("0"))); + } + + /* If the strings are empty, load default values which are + * guranteed to pass the validness tests. */ + const QString monthStr(getCapt(month)); + const QString dayStr(getCapt(day)); + YearProperty year = yearStr.isEmpty() ? DefaultYear : yearStr.toInt(); + if(getCapt(yearSign) == QChar::fromLatin1('-')) + year = -year; + const MonthProperty month = monthStr.isEmpty() ? DefaultMonth : monthStr.toInt(); + const MonthProperty day = dayStr.isEmpty() ? DefaultDay : dayStr.toInt(); + + if(!QDate::isValid(year, month, day)) + { + /* Try to give an intelligent message. */ + if(day > 31 || day < 1) + { + badData(QtXmlPatterns::tr("Day %1 is outside the range %2..%3.") + .arg(formatData(QString::number(day))) + .arg(formatData("01")) + .arg(formatData("31"))); + } + else if(month > 12 || month < -12 || month == 0) + { + badData(QtXmlPatterns::tr("Month %1 is outside the range %2..%3.") + .arg(month) + .arg(formatData("01")) + .arg(formatData("12"))); + + } + else if(QDate::isValid(DefaultYear, month, day)) + { + /* We can't use the badData() macro here because we need a different + * error code: FODT0001 instead of FORG0001. */ + errorMessage = ValidationError::createError(QtXmlPatterns::tr( + "Overflow: Can't represent date %1.") + .arg(formatData(QLatin1String("%1-%2-%3")) + .arg(year).arg(month).arg(day)), + ReportContext::FODT0001); + return QDateTime(); + } + else + { + badData(QtXmlPatterns::tr("Day %1 is invalid for month %2.") + .arg(formatData(QString::number(day))) + .arg(formatData(QString::number(month)))); + } + } + + /* Parse the zone offset. */ + ZoneOffsetParseResult zoResult; + const ZOTotal offset = parseZoneOffset(zoResult, capts, captTable); + + if(zoResult == Error) + { + errorMessage = ValidationError::createError(); + /* We encountered an error, so stop processing. */ + return QDateTime(); + } + + QDate date(year, month, day); + + /* Only deal with time if time is needed. */ + if(captTable.hour == -1) + { + QDateTime result(date); + setUtcOffset(result, zoResult, offset); + return result; + } + else + { + /* Now, it's time for the time-part. + * + * If the strings are empty, toInt() will return 0, which + * in all cases is valid properties. */ + const QString hourStr(getCapt(hour)); + const QString minutesStr(getCapt(minutes)); + const QString secondsStr(getCapt(seconds)); + HourProperty hour = hourStr.toInt(); + const MinuteProperty mins = minutesStr.toInt(); + const SecondProperty secs = secondsStr.toInt(); + + QString msecondsStr(getSafeCapt(mseconds)); + if(!msecondsStr.isEmpty()) + msecondsStr = msecondsStr.leftJustified(3, QLatin1Char('0'), true); + const MSecondProperty msecs = msecondsStr.toInt(); + + if(hour == 24) + { + /* 24:00:00.00 is an invalid time for QTime, so handle it here. */ + if(mins != 0 || secs != 0 || msecs != 0) + { + badData(QtXmlPatterns::tr("Time 24:%1:%2.%3 is invalid. " + "Hour is 24, but minutes, seconds, " + "and milliseconds are not all 0; ") + .arg(mins).arg(secs).arg(msecs)); + } + else + { + hour = 0; + date = date.addDays(1); + } + } + else if(!QTime::isValid(hour, mins, secs, msecs)) + { + badData(QtXmlPatterns::tr("Time %1:%2:%3.%4 is invalid.") + .arg(hour).arg(mins).arg(secs).arg(msecs)); + } + + const QTime time(hour, mins, secs, msecs); + Q_ASSERT(time.isValid()); + + QDateTime result(date, time); + setUtcOffset(result, zoResult, offset); + return result; + } +} + +ZOTotal AbstractDateTime::parseZoneOffset(ZoneOffsetParseResult &result, + const QStringList &capts, + const CaptureTable &captTable) +{ + const QString zoneOffsetSignStr(getCapt(zoneOffsetSign)); + + if(zoneOffsetSignStr.isEmpty()) + { + const QString zoneOffsetUTCStr(getCapt(zoneOffsetUTCSymbol)); + Q_ASSERT(zoneOffsetUTCStr.isEmpty() || zoneOffsetUTCStr == QLatin1String("Z")); + + if(zoneOffsetUTCStr.isEmpty()) + result = LocalTime; + else + result = UTC; + + return 0; + } + + Q_ASSERT(zoneOffsetSignStr == QLatin1String("-") || zoneOffsetSignStr == QLatin1String("+")); + + const QString zoneOffsetHourStr(getCapt(zoneOffsetHour)); + Q_ASSERT(!zoneOffsetHourStr.isEmpty()); + const ZOHourProperty zoHour = zoneOffsetHourStr.toInt(); + + if(zoHour > 14 || zoHour < -14) + { + result = Error; + return 0; + /* + badZOData(QtXmlPatterns::tr("%1 it is not a valid hour property in a zone offset. " + "It must be less than or equal to 14.").arg(zoHour)); + */ + } + + const QString zoneOffsetMinuteStr(getCapt(zoneOffsetMinute)); + Q_ASSERT(!zoneOffsetMinuteStr.isEmpty()); + const ZOHourProperty zoMins = zoneOffsetMinuteStr.toInt(); + + if(zoHour == 14 && zoMins != 0) + { + /* + badZOData(QtXmlPatterns::tr("When the hour property in a zone offset is 14, the minute property " + "must be 0, not %1.").arg(zoMins)); + */ + result = Error; + return 0; + } + else if(zoMins > 59 || zoMins < -59) + { + /* + badZOData(QtXmlPatterns::tr("The minute property in a zone offset cannot be larger than 59. " + "%1 is therefore invalid.").arg(zoMins)); + */ + result = Error; + return 0; + } + + if(zoHour == 0 && zoMins == 0) /* "-00:00" and "+00:00" is equal to 'Z'. */ + { + result = UTC; + return 0; + } + else + { + ZOTotal zoneOffset = (zoHour * 60 + zoMins) * 60; + + if(zoneOffsetSignStr == QChar::fromLatin1('-')) + zoneOffset = -zoneOffset; + + result = Offset; + return zoneOffset; + } +} +//#undef badZOData + +void AbstractDateTime::setUtcOffset(QDateTime &result, + const ZoneOffsetParseResult zoResult, + const int zoOffset) +{ + if(zoResult == UTC) + result.setTimeSpec(Qt::UTC); + else if(zoResult == LocalTime) + result.setTimeSpec(Qt::LocalTime); + else + { + Q_ASSERT(zoResult == Offset); + result.setUtcOffset(zoOffset); + } +} + +#undef badData +#undef getCapt +#undef getSafeCapt + +bool AbstractDateTime::isRangeValid(const QDate &date, + QString &message) +{ + if(date.isValid()) + return true; + else + { + message = QtXmlPatterns::tr("Overflow: Date can't be represented."); + return false; + } +} + +QString AbstractDateTime::dateToString() const +{ + return m_dateTime.toString(QLatin1String("yyyy-MM-dd")); +} + +QString AbstractDateTime::serializeMSeconds(const MSecondProperty mseconds) +{ + QString retval; + retval.append(QLatin1Char('.')); + int div = 100; + MSecondProperty msecs = mseconds; + + while(msecs > 0) + { + int d = msecs / div; + retval.append(QLatin1Char(d + '0')); + msecs = msecs % div; + div = div / 10; + } + + return retval; +} + +QString AbstractDateTime::timeToString() const +{ + QString base(m_dateTime.toString(QLatin1String("hh:mm:ss"))); + const MSecondProperty msecs = m_dateTime.time().msec(); + + if(msecs) + base.append(serializeMSeconds(msecs)); + + return base; +} + +QString AbstractDateTime::zoneOffsetToString() const +{ + switch(m_dateTime.timeSpec()) + { + case Qt::LocalTime: + return QString(); + case Qt::UTC: + return QLatin1String("Z"); + default: + { + Q_ASSERT(m_dateTime.timeSpec() == Qt::OffsetFromUTC); + + const int zoneOffset = m_dateTime.utcOffset(); + Q_ASSERT(zoneOffset != 0); + const int posZoneOffset = qAbs(zoneOffset); + + /* zoneOffset is in seconds. */ + const int hours = posZoneOffset/(60 * 60); + const int minutes = (posZoneOffset % (60 * 60)) / 60; + + QString result; + result.reserve(6); + + result.append(zoneOffset < 0 ? QLatin1Char('-') : QLatin1Char('+')); + result.append(QString::number(hours).rightJustified(2, QLatin1Char('0'))); + result.append(QLatin1Char(':')); + result.append(QString::number(minutes).rightJustified(2, QLatin1Char('0'))); + return result; + } + } +} + +void AbstractDateTime::copyTimeSpec(const QDateTime &from, + QDateTime &to) +{ + switch(from.timeSpec()) + { + case Qt::UTC: + /* Fallthrough. */ + case Qt::LocalTime: + { + to.setTimeSpec(from.timeSpec()); + return; + } + case Qt::OffsetFromUTC: + { + to.setUtcOffset(from.utcOffset()); + Q_ASSERT(to.timeSpec() == Qt::OffsetFromUTC); + return; + } + } +} + +Item AbstractDateTime::fromValue(const QDateTime &) const +{ + Q_ASSERT_X(false, Q_FUNC_INFO, + "Calling AbstractDateTime::fromDateTime() makes no sense."); + return Item(); +} +QT_END_NAMESPACE |