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101 lines
3.1 KiB
101 lines
3.1 KiB
/*
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This file is part of the KDE libraries
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Copyright (c) 2000 Waldo Bastian <bastian@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _KRFCDATE_H_
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#define _KRFCDATE_H_
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#include <tqstring.h>
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#include <time.h>
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#include "tdelibs_export.h"
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/**
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* The KRFCDate class contains functions related to the parsing of dates.
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*
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* @author Waldo Bastian <bastian@kde.org>
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*/
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class TDECORE_EXPORT KRFCDate
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{
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public:
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/**
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* This function tries to parse a string containing a date/time in any
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* of the formats specified by RFC822, RFC850, RFC1036, RFC1123 and RFC2822.
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*
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* If the date/time could not be parsed, 0 is returned. If the
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* parsed date is epoch, then epoch+1 is returned so that a valid
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* date will not be confused with an improper date string.
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*
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* The date/time returned is converted to UTC.
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* @param date the date to parse
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* @return the date, or 0 if not possible
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*/
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static time_t parseDate(const TQString &date);
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/**
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* This function tries to parse a string containing a date/time in
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* any of the formats specified by http://www.w3.org/TR/NOTE-datetime
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*
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* This is a subset of the formats specified in ISO8601.
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*
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* If the date/time could not be parsed, 0 is returned. If the
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* parsed date is epoch, then epoch+1 is returned so that a valid
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* date will not be confused with an improper date string.
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*
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* The date/time returned is converted to UTC.
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*
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* @param date the date to parse
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* @return the date, or 0 if not possible
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*/
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static time_t parseDateISO8601(const TQString &date);
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/**
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* Returns the local timezone offset to UTC in minutes
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* @return the local timezone offset in minutes
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*/
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static int localUTCOffset();
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/**
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* Returns a string representation of the given date and time formated
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* in conformance to RFC2822.
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*
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* @param utcTime a date and time in UTC
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* @param utcOffset the offset to UTC in minutes
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* @return the string representation of the date
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*/
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static TQCString rfc2822DateString(time_t utcTime, int utcOffset);
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/**
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* Returns a string representation of the given date and time formated
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* in conformance to RFC2822.
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*
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* Provided for convenience, the function is equivalent to
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* rfc2822DateString(t, localUTCOffset()).
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*
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* @param utcTime a date and time in UTC
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* @return the string representation of the date
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*/
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static TQCString rfc2822DateString(time_t utcTime);
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};
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#endif
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