Prepare to move core/platform/text into blink_platform.dll

Source/core/platform/DateComponents.h

-/*
- * Copyright (C) 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef DateComponents_h
-#define DateComponents_h
-
-#include <limits>
-#include "wtf/Forward.h"
-#include "wtf/unicode/Unicode.h"
-
-namespace WebCore {
-
-// A DateComponents instance represents one of the following date and time combinations:
-// * Month type: year-month
-// * Date type: year-month-day
-// * Week type: year-week
-// * Time type: hour-minute-second-millisecond
-// * DateTime or DateTimeLocal type: year-month-day hour-minute-second-millisecond
-class DateComponents {
-public:
-    DateComponents()
-        : m_millisecond(0)
-        , m_second(0)
-        , m_minute(0)
-        , m_hour(0)
-        , m_monthDay(0)
-        , m_month(0)
-        , m_year(0)
-        , m_week(0)
-        , m_type(Invalid)
-    {
-    }
-
-    enum Type {
-        Invalid,
-        Date,
-        DateTime,
-        DateTimeLocal,
-        Month,
-        Time,
-        Week,
-    };
-
-    int millisecond() const { return m_millisecond; }
-    int second() const { return m_second; }
-    int minute() const { return m_minute; }
-    int hour() const { return m_hour; }
-    int monthDay() const { return m_monthDay; }
-    int month() const { return m_month; }
-    int fullYear() const { return m_year; }
-    int week() const { return m_week; }
-    Type type() const { return m_type; }
-
-    enum SecondFormat {
-        None, // Suppress the second part and the millisecond part if they are 0.
-        Second, // Always show the second part, and suppress the millisecond part if it is 0.
-        Millisecond // Always show the second part and the millisecond part.
-    };
-
-    // Returns an ISO 8601 representation for this instance.
-    // The format argument is valid for DateTime, DateTimeLocal, and Time types.
-    String toString(SecondFormat format = None) const;
-
-    // parse*() and setMillisecondsSince*() functions are initializers for an
-    // DateComponents instance. If these functions return false, the instance
-    // might be invalid.
-
-    // The following six functions parse the input 'src' whose length is
-    // 'length', and updates some fields of this instance. The parsing starts at
-    // src[start] and examines characters before src[length].
-    // 'src' must be non-null. The 'src' string doesn't need to be
-    // null-terminated.
-    // The functions return true if the parsing succeeds, and set 'end' to the
-    // next index after the last consumed. Extra leading characters cause parse
-    // failures, and the trailing extra characters don't cause parse failures.
-
-    // Sets year and month.
-    bool parseMonth(const String&, unsigned start, unsigned& end);
-    // Sets year, month and monthDay.
-    bool parseDate(const String&, unsigned start, unsigned& end);
-    // Sets year and week.
-    bool parseWeek(const String&, unsigned start, unsigned& end);
-    // Sets hour, minute, second and millisecond.
-    bool parseTime(const String&, unsigned start, unsigned& end);
-    // Sets year, month, monthDay, hour, minute, second and millisecond.
-    bool parseDateTimeLocal(const String&, unsigned start, unsigned& end);
-    // Sets year, month, monthDay, hour, minute, second and millisecond, and adjusts timezone.
-    bool parseDateTime(const String&, unsigned start, unsigned& end);
-
-    // The following setMillisecondsSinceEpochFor*() functions take
-    // the number of milliseconds since 1970-01-01 00:00:00.000 UTC as
-    // the argument, and update all fields for the corresponding
-    // DateComponents type. The functions return true if it succeeds, and
-    // false if they fail.
-
-    // For Date type. Updates m_year, m_month and m_monthDay.
-    bool setMillisecondsSinceEpochForDate(double ms);
-    // For DateTime type. Updates m_year, m_month, m_monthDay, m_hour, m_minute, m_second and m_millisecond.
-    bool setMillisecondsSinceEpochForDateTime(double ms);
-    // For DateTimeLocal type. Updates m_year, m_month, m_monthDay, m_hour, m_minute, m_second and m_millisecond.
-    bool setMillisecondsSinceEpochForDateTimeLocal(double ms);
-    // For Month type. Updates m_year and m_month.
-    bool setMillisecondsSinceEpochForMonth(double ms);
-    // For Week type. Updates m_year and m_week.
-    bool setMillisecondsSinceEpochForWeek(double ms);
-
-    // For Time type. Updates m_hour, m_minute, m_second and m_millisecond.
-    bool setMillisecondsSinceMidnight(double ms);
-
-    // Another initializer for Month type. Updates m_year and m_month.
-    bool setMonthsSinceEpoch(double months);
-
-    // Returns the number of milliseconds from 1970-01-01 00:00:00 UTC.
-    // For a DateComponents initialized with parseDateTimeLocal(),
-    // millisecondsSinceEpoch() returns a value for UTC timezone.
-    double millisecondsSinceEpoch() const;
-    // Returns the number of months from 1970-01.
-    // Do not call this for types other than Month.
-    double monthsSinceEpoch() const;
-    static inline double invalidMilliseconds() { return std::numeric_limits<double>::quiet_NaN(); }
-
-    // Minimum and maxmimum limits for setMillisecondsSince*(),
-    // setMonthsSinceEpoch(), millisecondsSinceEpoch(), and monthsSinceEpoch().
-    static inline double minimumDate() { return -62135596800000.0; } // 0001-01-01T00:00Z
-    static inline double minimumDateTime() { return -62135596800000.0; } // ditto.
-    static inline double minimumMonth() { return (1 - 1970) * 12.0 + 1 - 1; } // 0001-01
-    static inline double minimumTime() { return 0; } // 00:00:00.000
-    static inline double minimumWeek() { return -62135596800000.0; } // 0001-01-01, the first Monday of 0001.
-    static inline double maximumDate() { return 8640000000000000.0; } // 275760-09-13T00:00Z
-    static inline double maximumDateTime() { return 8640000000000000.0; } // ditto.
-    static inline double maximumMonth() { return (275760 - 1970) * 12.0 + 9 - 1; } // 275760-09
-    static inline double maximumTime() { return 86399999; } // 23:59:59.999
-    static inline double maximumWeek() { return 8639999568000000.0; } // 275760-09-08, the Monday of the week including 275760-09-13.
-
-    // HTML5 uses ISO-8601 format with year >= 1. Gregorian calendar started in
-    // 1582. However, we need to support 0001-01-01 in Gregorian calendar rule.
-    static inline int minimumYear() { return 1; }
-    // Date in ECMAScript can't represent dates later than 275760-09-13T00:00Z.
-    // So, we have the same upper limit in HTML5 date/time types.
-    static inline int maximumYear() { return 275760; }
-    static const int minimumWeekNumber;
-    static const int maximumWeekNumber;
-
-private:
-    // Returns the maximum week number in this DateComponents's year.
-    // The result is either of 52 and 53.
-    int maxWeekNumberInYear() const;
-    bool parseYear(const String&, unsigned start, unsigned& end);
-    bool addDay(int);
-    bool addMinute(int);
-    bool parseTimeZone(const String&, unsigned start, unsigned& end);
-    // Helper for millisecondsSinceEpoch().
-    double millisecondsSinceEpochForTime() const;
-    // Helpers for setMillisecondsSinceEpochFor*().
-    bool setMillisecondsSinceEpochForDateInternal(double ms);
-    void setMillisecondsSinceMidnightInternal(double ms);
-    // Helper for toString().
-    String toStringForTime(SecondFormat) const;
-
-    // m_weekDay values
-    enum {
-        Sunday = 0,
-        Monday,
-        Tuesday,
-        Wednesday,
-        Thursday,
-        Friday,
-        Saturday,
-    };
-
-    int m_millisecond; // 0 - 999
-    int m_second;
-    int m_minute;
-    int m_hour;
-    int m_monthDay; // 1 - 31
-    int m_month; // 0:January - 11:December
-    int m_year; //  1582 -
-    int m_week; // 1 - 53
-
-    Type m_type;
-};
-
-
-} // namespace WebCore
-
-#endif // DateComponents_h