dateparser.cpp
00001 /* 00002 This file is part of KAddressbook. 00003 Copyright (c) 2003 Tobias Koenig <tokoe@kde.org> 00004 00005 This program is free software; you can redistribute it and/or modify 00006 it under the terms of the GNU General Public License as published by 00007 the Free Software Foundation; either version 2 of the License, or 00008 (at your option) any later version. 00009 00010 This program is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 GNU General Public License for more details. 00014 00015 You should have received a copy of the GNU General Public License 00016 along with this program; if not, write to the Free Software 00017 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00018 00019 As a special exception, permission is given to link this program 00020 with any edition of TQt, and distribute the resulting executable, 00021 without including the source code for TQt in the source distribution. 00022 */ 00023 00024 #include <tqdatetime.h> 00025 00026 #include "dateparser.h" 00027 00028 DateParser::DateParser( const TQString &pattern ) 00029 : mPattern( pattern ) 00030 { 00031 } 00032 00033 DateParser::~DateParser() 00034 { 00035 } 00036 00037 TQDate DateParser::parse( const TQString &dateStr ) const 00038 { 00039 int year, month, day; 00040 year = month = day = 0; 00041 00042 uint currPos = 0; 00043 for ( uint i = 0; i < mPattern.length(); ++i ) { 00044 if ( mPattern[ i ] == 'y' ) { // 19YY 00045 if ( currPos + 1 < dateStr.length() ) { 00046 year = 1900 + dateStr.mid( currPos, 2 ).toInt(); 00047 currPos += 2; 00048 } else 00049 return TQDate(); 00050 } else if ( mPattern[ i ] == 'Y' ) { // YYYY 00051 if ( currPos + 3 < dateStr.length() ) { 00052 year = dateStr.mid( currPos, 4 ).toInt(); 00053 currPos += 4; 00054 } else 00055 return TQDate(); 00056 } else if ( mPattern[ i ] == 'm' ) { // M or MM 00057 if ( currPos + 1 < dateStr.length() ) { 00058 if ( dateStr[ currPos ].isDigit() ) { 00059 if ( dateStr[ currPos + 1 ].isDigit() ) { 00060 month = dateStr.mid( currPos, 2 ).toInt(); 00061 currPos += 2; 00062 continue; 00063 } 00064 } 00065 } 00066 if ( currPos < dateStr.length() ) { 00067 if ( dateStr[ currPos ].isDigit() ) { 00068 month = dateStr.mid( currPos, 1 ).toInt(); 00069 currPos++; 00070 continue; 00071 } 00072 } 00073 00074 return TQDate(); 00075 } else if ( mPattern[ i ] == 'M' ) { // 0M or MM 00076 if ( currPos + 1 < dateStr.length() ) { 00077 month = dateStr.mid( currPos, 2 ).toInt(); 00078 currPos += 2; 00079 } else 00080 return TQDate(); 00081 } else if ( mPattern[ i ] == 'd' ) { // D or DD 00082 if ( currPos + 1 < dateStr.length() ) { 00083 if ( dateStr[ currPos ].isDigit() ) { 00084 if ( dateStr[ currPos + 1 ].isDigit() ) { 00085 day = dateStr.mid( currPos, 2 ).toInt(); 00086 currPos += 2; 00087 continue; 00088 } 00089 } 00090 } 00091 if ( currPos < dateStr.length() ) { 00092 if ( dateStr[ currPos ].isDigit() ) { 00093 day = dateStr.mid( currPos, 1 ).toInt(); 00094 currPos++; 00095 continue; 00096 } 00097 } 00098 00099 return TQDate(); 00100 } else if ( mPattern[ i ] == 'D' ) { // 0D or DD 00101 if ( currPos + 1 < dateStr.length() ) { 00102 day = dateStr.mid( currPos, 2 ).toInt(); 00103 currPos += 2; 00104 } else 00105 return TQDate(); 00106 } else { 00107 currPos++; 00108 } 00109 } 00110 00111 return TQDate( year, month, day ); 00112 }