src/xmlpatterns/data/qabstractduration.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QStringList>
       
    43 
       
    44 #include "qbuiltintypes_p.h"
       
    45 #include "qpatternistlocale_p.h"
       
    46 #include "qvalidationerror_p.h"
       
    47 
       
    48 #include "qabstractduration_p.h"
       
    49 
       
    50 QT_BEGIN_NAMESPACE
       
    51 
       
    52 using namespace QPatternist;
       
    53 
       
    54 AbstractDuration::AbstractDuration(const bool isPos) : m_isPositive(isPos)
       
    55 {
       
    56 }
       
    57 
       
    58 #define error(msg) return ValidationError::createError(msg);
       
    59 #define getCapt(sym)        ((captTable.sym == -1) ? QString() : capts.at(captTable.sym))
       
    60 
       
    61 AtomicValue::Ptr AbstractDuration::create(const CaptureTable &captTable,
       
    62                                           const QString &lexical,
       
    63                                           bool *isPositive,
       
    64                                           YearProperty *years,
       
    65                                           MonthProperty *months,
       
    66                                           DayCountProperty *days,
       
    67                                           HourProperty *hours,
       
    68                                           MinuteProperty *minutes,
       
    69                                           SecondProperty *seconds,
       
    70                                           MSecondProperty *mseconds)
       
    71 {
       
    72     /* We don't directly write into the arguments(eg @p years) but uses these
       
    73      * because the arguments are intended for normalized values, and therefore
       
    74      * can cause overflows. */
       
    75     MonthCountProperty monthCount = 0;
       
    76     MinuteCountProperty minCount = 0;
       
    77     HourCountProperty hourCount = 0;
       
    78     SecondCountProperty secCount = 0;
       
    79 
       
    80     Q_ASSERT(isPositive);
       
    81     QRegExp myExp(captTable.regExp); /* Copy, in order to stay thread safe. */
       
    82 
       
    83     if(!myExp.exactMatch(lexical))
       
    84     {
       
    85         error(QString());
       
    86     }
       
    87 
       
    88     const QStringList capts(myExp.capturedTexts());
       
    89 
       
    90 
       
    91     if(days)
       
    92     {
       
    93         if(getCapt(tDelimiter).isEmpty())
       
    94         {
       
    95             if((years && getCapt(year).isEmpty() && getCapt(month).isEmpty() && getCapt(day).isEmpty())
       
    96                 ||
       
    97                (!years && getCapt(day).isEmpty()))
       
    98             {
       
    99                 error(QtXmlPatterns::tr("At least one component must be present."));
       
   100             }
       
   101         }
       
   102         else if(getCapt(hour).isEmpty() &&
       
   103                 getCapt(minutes).isEmpty() &&
       
   104                 getCapt(seconds).isEmpty() &&
       
   105                 getCapt(mseconds).isEmpty())
       
   106         {
       
   107             error(QtXmlPatterns::tr("At least one time component must appear "
       
   108                                     "after the %1-delimiter.")
       
   109                                     .arg(formatKeyword("T")));
       
   110         }
       
   111     }
       
   112     else if(getCapt(year).isEmpty() && getCapt(month).isEmpty()) /* This checks xs:yearMonthDuration. */
       
   113     {
       
   114         error(QtXmlPatterns::tr("At least one component must be present."));
       
   115     }
       
   116 
       
   117     /* If we got no '-', we are positive. */
       
   118     *isPositive = capts.at(1).isEmpty();
       
   119 
       
   120     if(days)
       
   121     {
       
   122         Q_ASSERT(hours);
       
   123         Q_ASSERT(minutes);
       
   124         Q_ASSERT(seconds);
       
   125         Q_ASSERT(mseconds);
       
   126 
       
   127         *days = getCapt(day).toInt();
       
   128         hourCount = getCapt(hour).toInt();
       
   129         minCount = getCapt(minutes).toInt();
       
   130         secCount = getCapt(seconds).toInt();
       
   131 
       
   132         const QString msecondsStr(getCapt(mseconds));
       
   133         if(!msecondsStr.isEmpty())
       
   134             *mseconds = msecondsStr.leftJustified(3, QLatin1Char('0')).toInt();
       
   135         else
       
   136             *mseconds = msecondsStr.toInt();
       
   137 
       
   138         if(secCount > 59)
       
   139         {
       
   140             minCount += secCount / 60;
       
   141             *seconds = secCount % 60;
       
   142         }
       
   143         else
       
   144             *seconds = secCount;
       
   145 
       
   146         if(minCount > 59)
       
   147         {
       
   148             hourCount += minCount / 60;
       
   149             *minutes = minCount % 60;
       
   150         }
       
   151         else
       
   152             *minutes = minCount;
       
   153 
       
   154         if(hourCount > 23)
       
   155         {
       
   156             *days += hourCount / 24;
       
   157             *hours = hourCount % 24;
       
   158         }
       
   159         else
       
   160             *hours = hourCount;
       
   161     }
       
   162 
       
   163     if(!years)
       
   164         return AtomicValue::Ptr();
       
   165 
       
   166     /* We're supposed to handle years/months. */
       
   167     Q_ASSERT(months);
       
   168 
       
   169     *years = getCapt(year).toInt();
       
   170     monthCount = getCapt(month).toInt();
       
   171 
       
   172     if(monthCount > 11)
       
   173     {
       
   174         *years += monthCount / 12;
       
   175         *months = monthCount % 12;
       
   176     }
       
   177     else
       
   178         *months = monthCount;
       
   179 
       
   180     return AtomicValue::Ptr();
       
   181 }
       
   182 #undef error
       
   183 #undef getCapt
       
   184 
       
   185 bool AbstractDuration::operator==(const AbstractDuration &other) const
       
   186 {
       
   187     if(years() == other.years()
       
   188        && months() == other.months()
       
   189        && days() == other.days()
       
   190        && hours() == other.hours()
       
   191        && minutes() == other.minutes()
       
   192        && seconds() == other.seconds()
       
   193        && mseconds() == other.mseconds())
       
   194     {
       
   195         if(isPositive() == other.isPositive())
       
   196             return true;
       
   197         else if(years() == 0
       
   198                 && months() == 0
       
   199                 && days() == 0
       
   200                 && hours() == 0
       
   201                 && minutes() == 0
       
   202                 && seconds () == 0
       
   203                 && mseconds() == 0)
       
   204         {
       
   205             return true; /* Signedness doesn't matter if all are zero. */
       
   206         }
       
   207     }
       
   208 
       
   209     return false;
       
   210 }
       
   211 
       
   212 QString AbstractDuration::serializeMSeconds(const MSecondProperty mseconds)
       
   213 {
       
   214     QString retval;
       
   215     retval.append(QLatin1Char('.'));
       
   216     int div = 100;
       
   217     MSecondProperty msecs = mseconds;
       
   218 
       
   219     while(msecs > 0)
       
   220     {
       
   221         int d = msecs / div;
       
   222         retval.append(QLatin1Char(d + '0'));
       
   223         msecs = msecs % div;
       
   224         div = div / 10;
       
   225     }
       
   226 
       
   227     return retval;
       
   228 }
       
   229 
       
   230 bool AbstractDuration::isPositive() const
       
   231 {
       
   232     return m_isPositive;
       
   233 }
       
   234 
       
   235 QT_END_NAMESPACE