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//
// DateTimeFormat.h
//
// Library: Foundation
// Package: DateTime
// Module: DateTimeFormat
//
// Definition of the DateTimeFormat class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_DateTimeFormat_INCLUDED
#define Foundation_DateTimeFormat_INCLUDED
#include "Poco/Foundation.h"
#include <unordered_set>
namespace Poco {
class RegularExpression;
class Foundation_API DateTimeFormat
/// Definition of date/time formats and various
/// constants used by DateTimeFormatter and DateTimeParser.
{
public:
// predefined date formats
static const std::string ISO8601_FORMAT;
/// The date/time format defined in the ISO 8601 standard.
///
/// Examples:
/// 2005-01-01T12:00:00+01:00
/// 2005-01-01T11:00:00Z
static const std::string ISO8601_REGEX;
static const std::string ISO8601_FRAC_FORMAT;
/// The date/time format defined in the ISO 8601 standard,
/// with fractional seconds.
///
/// Examples:
/// 2005-01-01T12:00:00.000000+01:00
/// 2005-01-01T11:00:00.000000Z
static const std::string RFC822_FORMAT;
/// The date/time format defined in RFC 822 (obsoleted by RFC 1123).
///
/// Examples:
/// Sat, 1 Jan 05 12:00:00 +0100
/// Sat, 1 Jan 05 11:00:00 GMT
static const std::string RFC822_REGEX;
static const std::string RFC1123_FORMAT;
/// The date/time format defined in RFC 1123 (obsoletes RFC 822).
///
/// Examples:
/// Sat, 1 Jan 2005 12:00:00 +0100
/// Sat, 1 Jan 2005 11:00:00 GMT
static const std::string RFC1123_REGEX;
static const std::string HTTP_FORMAT;
/// The date/time format defined in the HTTP specification (RFC 2616),
/// which is basically a variant of RFC 1036 with a zero-padded day field.
///
/// Examples:
/// Sat, 01 Jan 2005 12:00:00 +0100
/// Sat, 01 Jan 2005 11:00:00 GMT
static const std::string HTTP_REGEX;
static const std::string RFC850_FORMAT;
/// The date/time format defined in RFC 850 (obsoleted by RFC 1036).
///
/// Examples:
/// Saturday, 1-Jan-05 12:00:00 +0100
/// Saturday, 1-Jan-05 11:00:00 GMT
static const std::string RFC850_REGEX;
static const std::string RFC1036_FORMAT;
/// The date/time format defined in RFC 1036 (obsoletes RFC 850).
///
/// Examples:
/// Saturday, 1 Jan 05 12:00:00 +0100
/// Saturday, 1 Jan 05 11:00:00 GMT
static const std::string RFC1036_REGEX;
static const std::string ASCTIME_FORMAT;
/// The date/time format produced by the ANSI C asctime() function.
///
/// Example:
/// Sat Jan 1 12:00:00 2005
static const std::string ASCTIME_REGEX;
static const std::string SORTABLE_FORMAT;
/// A simple, sortable date/time format.
///
/// Example:
/// 2005-01-01 12:00:00
static const std::string SORTABLE_REGEX;
// ^(\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d)$
// names used by formatter and parser
static const std::string WEEKDAY_NAMES[7];
/// English names of week days (Sunday, Monday, Tuesday, ...).
static const std::string MONTH_NAMES[12];
/// English names of months (January, February, ...).
static bool hasFormat(const std::string& fmt);
/// Returns true if fmt is a known standard format.
static bool isValid(const std::string& dateTime);
/// Returns true if dateTime validates against at least one supported format.
private:
typedef std::unordered_set<std::string> Formatlist;
static Formatlist FORMAT_LIST;
};
} // namespace Poco
#endif // Foundation_DateTimeFormat_INCLUDED
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