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/* This file is part of the KDE project
Copyright (C) 2005 David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <tqstring.h>
/**
* Routines for converting to and from the ISO-8601 duration format
* http://www.w3.org/TR/xmlschema-2/datatypes.html#duration
*
* This is not the ISO time format supported by TQt (HH:MM:SS),
* it's PT1H15M12S for 1:15:12.
*
*/
static TQString minutesToISODuration( int mn )
{
bool neg = mn < 0;
// PT == period of time - see ISO8601
TQString str = TQString::fromLatin1( "PT00H%1M00S" ).arg( TQABS( mn ) );
if ( neg )
str.prepend( '-' );
return str;
}
static TQString daysToISODuration( int days )
{
bool neg = days < 0;
// P == period, time is ommitted - see ISO8601
TQString str = TQString::fromLatin1( "P%1D" ).arg( TQABS( days ) );
if ( neg )
str.prepend( '-' );
return str;
}
static int ISODurationToMinutes( const TQString& str )
{
int idx = 0;
const int len = str.length();
bool neg = str[idx] == '-';
if ( neg )
++idx;
if ( idx < len && str[idx] == 'P' ) // should always be true
++idx;
if ( idx < len && str[idx] == 'T' )
++idx;
int minutes = 0;
int currentNum = 0;
while ( idx < len ) {
if ( str[idx].isDigit() )
currentNum = currentNum * 10 + str[idx].latin1() - '0';
else {
if ( str[idx] == 'D' )
minutes += 24 * 60 * currentNum;
else if ( str[idx] == 'H' )
minutes += 60 * currentNum;
else if ( str[idx] == 'M' )
minutes += currentNum;
currentNum = 0;
}
++idx;
}
return neg ? -minutes : minutes;
}
static int ISODurationToDays( const TQString& str )
{
int idx = 0;
const int len = str.length();
bool neg = str[idx] == '-';
if ( neg )
++idx;
if ( idx < len && str[idx] == 'P' ) // should always be true
++idx;
if ( idx < len && str[idx] == 'T' )
++idx;
int days = 0;
int currentNum = 0;
while ( idx < len ) {
if ( str[idx].isDigit() )
currentNum = currentNum * 10 + str[idx].latin1() - '0';
else {
if ( str[idx] == 'Y' )
days += 365 * currentNum;
else if ( str[idx] == 'M' )
days += 30 * currentNum; // approx
else if ( str[idx] == 'D' )
days += currentNum;
currentNum = 0;
}
++idx;
}
return neg ? -days : days;
}
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