17b8600e8e
This change will treat the ':' character in patterns as a symbol (instead of as a literal) and if the Locale defines timeSeparator then use that character instead when formatting and accept both when parsing. It will also define the '.' as an alternate time separator, that will be accepted when parsing in lenient mode. This is one character more strict than before, when in lenient mode also the '-' was accepted as time separator instead of ':'. R=rocketman@google.com Review URL: https://codereview.appspot.com/180610043 X-SVN-Rev: 36897
1572 lines
54 KiB
C
1572 lines
54 KiB
C
/*
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*******************************************************************************
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* Copyright (C) 1996-2014, International Business Machines Corporation and
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* others. All Rights Reserved.
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*******************************************************************************
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*/
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#ifndef UCAL_H
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#define UCAL_H
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#include "unicode/utypes.h"
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#include "unicode/uenum.h"
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#include "unicode/uloc.h"
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#include "unicode/localpointer.h"
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#if !UCONFIG_NO_FORMATTING
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/**
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* \file
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* \brief C API: Calendar
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*
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* <h2>Calendar C API</h2>
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*
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* UCalendar C API is used for converting between a <code>UDate</code> object
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* and a set of integer fields such as <code>UCAL_YEAR</code>, <code>UCAL_MONTH</code>,
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* <code>UCAL_DAY</code>, <code>UCAL_HOUR</code>, and so on.
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* (A <code>UDate</code> object represents a specific instant in
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* time with millisecond precision. See UDate
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* for information about the <code>UDate</code> .)
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*
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* <p>
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* Types of <code>UCalendar</code> interpret a <code>UDate</code>
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* according to the rules of a specific calendar system. The U_STABLE
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* provides the enum UCalendarType with UCAL_TRADITIONAL and
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* UCAL_GREGORIAN.
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* <p>
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* Like other locale-sensitive C API, calendar API provides a
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* function, <code>ucal_open()</code>, which returns a pointer to
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* <code>UCalendar</code> whose time fields have been initialized
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* with the current date and time. We need to specify the type of
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* calendar to be opened and the timezoneId.
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* \code
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* UCalendar *caldef;
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* UChar *tzId;
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* UErrorCode status;
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* tzId=(UChar*)malloc(sizeof(UChar) * (strlen("PST") +1) );
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* u_uastrcpy(tzId, "PST");
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* caldef=ucal_open(tzID, u_strlen(tzID), NULL, UCAL_TRADITIONAL, &status);
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* \endcode
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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*
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* <p>
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* A <code>UCalendar</code> object can produce all the time field values
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* needed to implement the date-time formatting for a particular language
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* and calendar style (for example, Japanese-Gregorian, Japanese-Traditional).
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*
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* <p>
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* When computing a <code>UDate</code> from time fields, two special circumstances
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* may arise: there may be insufficient information to compute the
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* <code>UDate</code> (such as only year and month but no day in the month),
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* or there may be inconsistent information (such as "Tuesday, July 15, 1996"
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* -- July 15, 1996 is actually a Monday).
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*
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* <p>
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* <strong>Insufficient information.</strong> The calendar will use default
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* information to specify the missing fields. This may vary by calendar; for
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* the Gregorian calendar, the default for a field is the same as that of the
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* start of the epoch: i.e., UCAL_YEAR = 1970, UCAL_MONTH = JANUARY, UCAL_DATE = 1, etc.
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*
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* <p>
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* <strong>Inconsistent information.</strong> If fields conflict, the calendar
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* will give preference to fields set more recently. For example, when
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* determining the day, the calendar will look for one of the following
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* combinations of fields. The most recent combination, as determined by the
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* most recently set single field, will be used.
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*
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* \code
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* UCAL_MONTH + UCAL_DAY_OF_MONTH
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* UCAL_MONTH + UCAL_WEEK_OF_MONTH + UCAL_DAY_OF_WEEK
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* UCAL_MONTH + UCAL_DAY_OF_WEEK_IN_MONTH + UCAL_DAY_OF_WEEK
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* UCAL_DAY_OF_YEAR
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* UCAL_DAY_OF_WEEK + UCAL_WEEK_OF_YEAR
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* \endcode
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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*
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* For the time of day:
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*
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* \htmlonly<blockquote>\endhtmlonly
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* <pre>
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* \code
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* UCAL_HOUR_OF_DAY
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* UCAL_AM_PM + UCAL_HOUR
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* \endcode
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* </pre>
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* \htmlonly</blockquote>\endhtmlonly
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*
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* <p>
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* <strong>Note:</strong> for some non-Gregorian calendars, different
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* fields may be necessary for complete disambiguation. For example, a full
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* specification of the historial Arabic astronomical calendar requires year,
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* month, day-of-month <em>and</em> day-of-week in some cases.
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*
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* <p>
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* <strong>Note:</strong> There are certain possible ambiguities in
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* interpretation of certain singular times, which are resolved in the
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* following ways:
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* <ol>
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* <li> 24:00:00 "belongs" to the following day. That is,
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* 23:59 on Dec 31, 1969 < 24:00 on Jan 1, 1970 < 24:01:00 on Jan 1, 1970
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*
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* <li> Although historically not precise, midnight also belongs to "am",
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* and noon belongs to "pm", so on the same day,
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* 12:00 am (midnight) < 12:01 am, and 12:00 pm (noon) < 12:01 pm
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* </ol>
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*
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* <p>
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* The date or time format strings are not part of the definition of a
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* calendar, as those must be modifiable or overridable by the user at
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* runtime. Use {@link icu::DateFormat}
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* to format dates.
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*
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* <p>
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* <code>Calendar</code> provides an API for field "rolling", where fields
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* can be incremented or decremented, but wrap around. For example, rolling the
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* month up in the date <code>December 12, <b>1996</b></code> results in
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* <code>January 12, <b>1996</b></code>.
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*
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* <p>
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* <code>Calendar</code> also provides a date arithmetic function for
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* adding the specified (signed) amount of time to a particular time field.
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* For example, subtracting 5 days from the date <code>September 12, 1996</code>
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* results in <code>September 7, 1996</code>.
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*
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* @stable ICU 2.0
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*/
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/**
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* The time zone ID reserved for unknown time zone.
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* @stable ICU 4.8
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*/
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#define UCAL_UNKNOWN_ZONE_ID "Etc/Unknown"
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/** A calendar.
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* For usage in C programs.
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* @stable ICU 2.0
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*/
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typedef void* UCalendar;
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/** Possible types of UCalendars
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* @stable ICU 2.0
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*/
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enum UCalendarType {
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/**
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* Despite the name, UCAL_TRADITIONAL designates the locale's default calendar,
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* which may be the Gregorian calendar or some other calendar.
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* @stable ICU 2.0
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*/
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UCAL_TRADITIONAL,
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/**
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* A better name for UCAL_TRADITIONAL.
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* @stable ICU 4.2
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*/
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UCAL_DEFAULT = UCAL_TRADITIONAL,
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/**
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* Unambiguously designates the Gregorian calendar for the locale.
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* @stable ICU 2.0
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*/
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UCAL_GREGORIAN
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};
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/** @stable ICU 2.0 */
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typedef enum UCalendarType UCalendarType;
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/** Possible fields in a UCalendar
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* @stable ICU 2.0
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*/
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enum UCalendarDateFields {
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/**
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* Field number indicating the era, e.g., AD or BC in the Gregorian (Julian) calendar.
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* This is a calendar-specific value.
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* @stable ICU 2.6
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*/
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UCAL_ERA,
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/**
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* Field number indicating the year. This is a calendar-specific value.
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* @stable ICU 2.6
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*/
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UCAL_YEAR,
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/**
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* Field number indicating the month. This is a calendar-specific value.
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* The first month of the year is
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* <code>JANUARY</code>; the last depends on the number of months in a year.
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* @see #UCAL_JANUARY
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* @see #UCAL_FEBRUARY
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* @see #UCAL_MARCH
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* @see #UCAL_APRIL
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* @see #UCAL_MAY
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* @see #UCAL_JUNE
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* @see #UCAL_JULY
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* @see #UCAL_AUGUST
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* @see #UCAL_SEPTEMBER
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* @see #UCAL_OCTOBER
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* @see #UCAL_NOVEMBER
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* @see #UCAL_DECEMBER
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* @see #UCAL_UNDECIMBER
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* @stable ICU 2.6
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*/
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UCAL_MONTH,
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/**
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* Field number indicating the
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* week number within the current year. The first week of the year, as
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* defined by <code>UCAL_FIRST_DAY_OF_WEEK</code> and <code>UCAL_MINIMAL_DAYS_IN_FIRST_WEEK</code>
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* attributes, has value 1. Subclasses define
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* the value of <code>UCAL_WEEK_OF_YEAR</code> for days before the first week of
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* the year.
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* @see ucal_getAttribute
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* @see ucal_setAttribute
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* @stable ICU 2.6
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*/
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UCAL_WEEK_OF_YEAR,
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/**
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* Field number indicating the
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* week number within the current month. The first week of the month, as
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* defined by <code>UCAL_FIRST_DAY_OF_WEEK</code> and <code>UCAL_MINIMAL_DAYS_IN_FIRST_WEEK</code>
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* attributes, has value 1. Subclasses define
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* the value of <code>WEEK_OF_MONTH</code> for days before the first week of
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* the month.
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* @see ucal_getAttribute
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* @see ucal_setAttribute
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* @see #UCAL_FIRST_DAY_OF_WEEK
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* @see #UCAL_MINIMAL_DAYS_IN_FIRST_WEEK
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* @stable ICU 2.6
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*/
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UCAL_WEEK_OF_MONTH,
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/**
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* Field number indicating the
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* day of the month. This is a synonym for <code>DAY_OF_MONTH</code>.
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* The first day of the month has value 1.
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* @see #UCAL_DAY_OF_MONTH
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* @stable ICU 2.6
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*/
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UCAL_DATE,
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/**
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* Field number indicating the day
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* number within the current year. The first day of the year has value 1.
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* @stable ICU 2.6
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*/
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UCAL_DAY_OF_YEAR,
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/**
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* Field number indicating the day
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* of the week. This field takes values <code>SUNDAY</code>,
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* <code>MONDAY</code>, <code>TUESDAY</code>, <code>WEDNESDAY</code>,
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* <code>THURSDAY</code>, <code>FRIDAY</code>, and <code>SATURDAY</code>.
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* @see #UCAL_SUNDAY
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* @see #UCAL_MONDAY
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* @see #UCAL_TUESDAY
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* @see #UCAL_WEDNESDAY
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* @see #UCAL_THURSDAY
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* @see #UCAL_FRIDAY
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* @see #UCAL_SATURDAY
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* @stable ICU 2.6
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*/
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UCAL_DAY_OF_WEEK,
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/**
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* Field number indicating the
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* ordinal number of the day of the week within the current month. Together
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* with the <code>DAY_OF_WEEK</code> field, this uniquely specifies a day
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* within a month. Unlike <code>WEEK_OF_MONTH</code> and
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* <code>WEEK_OF_YEAR</code>, this field's value does <em>not</em> depend on
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* <code>getFirstDayOfWeek()</code> or
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* <code>getMinimalDaysInFirstWeek()</code>. <code>DAY_OF_MONTH 1</code>
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* through <code>7</code> always correspond to <code>DAY_OF_WEEK_IN_MONTH
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* 1</code>; <code>8</code> through <code>15</code> correspond to
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* <code>DAY_OF_WEEK_IN_MONTH 2</code>, and so on.
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* <code>DAY_OF_WEEK_IN_MONTH 0</code> indicates the week before
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* <code>DAY_OF_WEEK_IN_MONTH 1</code>. Negative values count back from the
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* end of the month, so the last Sunday of a month is specified as
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* <code>DAY_OF_WEEK = SUNDAY, DAY_OF_WEEK_IN_MONTH = -1</code>. Because
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* negative values count backward they will usually be aligned differently
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* within the month than positive values. For example, if a month has 31
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* days, <code>DAY_OF_WEEK_IN_MONTH -1</code> will overlap
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* <code>DAY_OF_WEEK_IN_MONTH 5</code> and the end of <code>4</code>.
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* @see #UCAL_DAY_OF_WEEK
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* @see #UCAL_WEEK_OF_MONTH
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* @stable ICU 2.6
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*/
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UCAL_DAY_OF_WEEK_IN_MONTH,
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/**
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* Field number indicating
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* whether the <code>HOUR</code> is before or after noon.
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* E.g., at 10:04:15.250 PM the <code>AM_PM</code> is <code>PM</code>.
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* @see #UCAL_AM
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* @see #UCAL_PM
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* @see #UCAL_HOUR
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* @stable ICU 2.6
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*/
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UCAL_AM_PM,
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/**
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* Field number indicating the
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* hour of the morning or afternoon. <code>HOUR</code> is used for the 12-hour
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* clock.
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* E.g., at 10:04:15.250 PM the <code>HOUR</code> is 10.
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* @see #UCAL_AM_PM
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* @see #UCAL_HOUR_OF_DAY
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* @stable ICU 2.6
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*/
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UCAL_HOUR,
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/**
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* Field number indicating the
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* hour of the day. <code>HOUR_OF_DAY</code> is used for the 24-hour clock.
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* E.g., at 10:04:15.250 PM the <code>HOUR_OF_DAY</code> is 22.
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* @see #UCAL_HOUR
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* @stable ICU 2.6
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*/
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UCAL_HOUR_OF_DAY,
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/**
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* Field number indicating the
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* minute within the hour.
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* E.g., at 10:04:15.250 PM the <code>UCAL_MINUTE</code> is 4.
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* @stable ICU 2.6
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*/
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UCAL_MINUTE,
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/**
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* Field number indicating the
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* second within the minute.
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* E.g., at 10:04:15.250 PM the <code>UCAL_SECOND</code> is 15.
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* @stable ICU 2.6
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*/
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UCAL_SECOND,
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/**
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* Field number indicating the
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* millisecond within the second.
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* E.g., at 10:04:15.250 PM the <code>UCAL_MILLISECOND</code> is 250.
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* @stable ICU 2.6
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*/
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UCAL_MILLISECOND,
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/**
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* Field number indicating the
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* raw offset from GMT in milliseconds.
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* @stable ICU 2.6
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*/
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|
UCAL_ZONE_OFFSET,
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/**
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* Field number indicating the
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* daylight savings offset in milliseconds.
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* @stable ICU 2.6
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|
*/
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|
UCAL_DST_OFFSET,
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/**
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* Field number
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* indicating the extended year corresponding to the
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* <code>UCAL_WEEK_OF_YEAR</code> field. This may be one greater or less
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* than the value of <code>UCAL_EXTENDED_YEAR</code>.
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* @stable ICU 2.6
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*/
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UCAL_YEAR_WOY,
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|
/**
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|
* Field number
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* indicating the localized day of week. This will be a value from 1
|
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* to 7 inclusive, with 1 being the localized first day of the week.
|
|
* @stable ICU 2.6
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*/
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|
UCAL_DOW_LOCAL,
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|
|
|
/**
|
|
* Year of this calendar system, encompassing all supra-year fields. For example,
|
|
* in Gregorian/Julian calendars, positive Extended Year values indicate years AD,
|
|
* 1 BC = 0 extended, 2 BC = -1 extended, and so on.
|
|
* @stable ICU 2.8
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|
*/
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|
UCAL_EXTENDED_YEAR,
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|
|
|
/**
|
|
* Field number
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* indicating the modified Julian day number. This is different from
|
|
* the conventional Julian day number in two regards. First, it
|
|
* demarcates days at local zone midnight, rather than noon GMT.
|
|
* Second, it is a local number; that is, it depends on the local time
|
|
* zone. It can be thought of as a single number that encompasses all
|
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* the date-related fields.
|
|
* @stable ICU 2.8
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|
*/
|
|
UCAL_JULIAN_DAY,
|
|
|
|
/**
|
|
* Ranges from 0 to 23:59:59.999 (regardless of DST). This field behaves <em>exactly</em>
|
|
* like a composite of all time-related fields, not including the zone fields. As such,
|
|
* it also reflects discontinuities of those fields on DST transition days. On a day
|
|
* of DST onset, it will jump forward. On a day of DST cessation, it will jump
|
|
* backward. This reflects the fact that it must be combined with the DST_OFFSET field
|
|
* to obtain a unique local time value.
|
|
* @stable ICU 2.8
|
|
*/
|
|
UCAL_MILLISECONDS_IN_DAY,
|
|
|
|
/**
|
|
* Whether or not the current month is a leap month (0 or 1). See the Chinese calendar for
|
|
* an example of this.
|
|
*/
|
|
UCAL_IS_LEAP_MONTH,
|
|
|
|
/**
|
|
* Field number indicating the separator between
|
|
* <code>HOUR</code>, <code>MINUTE</code> and <code>SECOND</code>.
|
|
* E.g., at 10:04 the <code>TIME_SEPARATOR</code> is <code>:</code>.
|
|
* @see #UCAL_HOUR
|
|
* @see #UCAL_MINUTE
|
|
* @see #UCAL_SECOND
|
|
* @internal
|
|
*/
|
|
UCAL_TIME_SEPARATOR,
|
|
|
|
/**
|
|
* Field count
|
|
* @stable ICU 2.6
|
|
*/
|
|
UCAL_FIELD_COUNT,
|
|
|
|
/**
|
|
* Field number indicating the
|
|
* day of the month. This is a synonym for <code>UCAL_DATE</code>.
|
|
* The first day of the month has value 1.
|
|
* @see #UCAL_DATE
|
|
* Synonym for UCAL_DATE
|
|
* @stable ICU 2.8
|
|
**/
|
|
UCAL_DAY_OF_MONTH=UCAL_DATE
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarDateFields UCalendarDateFields;
|
|
/**
|
|
* Useful constant for days of week. Note: Calendar day-of-week is 1-based. Clients
|
|
* who create locale resources for the field of first-day-of-week should be aware of
|
|
* this. For instance, in US locale, first-day-of-week is set to 1, i.e., UCAL_SUNDAY.
|
|
*/
|
|
/** Possible days of the week in a UCalendar
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarDaysOfWeek {
|
|
/** Sunday */
|
|
UCAL_SUNDAY = 1,
|
|
/** Monday */
|
|
UCAL_MONDAY,
|
|
/** Tuesday */
|
|
UCAL_TUESDAY,
|
|
/** Wednesday */
|
|
UCAL_WEDNESDAY,
|
|
/** Thursday */
|
|
UCAL_THURSDAY,
|
|
/** Friday */
|
|
UCAL_FRIDAY,
|
|
/** Saturday */
|
|
UCAL_SATURDAY
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarDaysOfWeek UCalendarDaysOfWeek;
|
|
|
|
/** Possible months in a UCalendar. Note: Calendar month is 0-based.
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarMonths {
|
|
/** January */
|
|
UCAL_JANUARY,
|
|
/** February */
|
|
UCAL_FEBRUARY,
|
|
/** March */
|
|
UCAL_MARCH,
|
|
/** April */
|
|
UCAL_APRIL,
|
|
/** May */
|
|
UCAL_MAY,
|
|
/** June */
|
|
UCAL_JUNE,
|
|
/** July */
|
|
UCAL_JULY,
|
|
/** August */
|
|
UCAL_AUGUST,
|
|
/** September */
|
|
UCAL_SEPTEMBER,
|
|
/** October */
|
|
UCAL_OCTOBER,
|
|
/** November */
|
|
UCAL_NOVEMBER,
|
|
/** December */
|
|
UCAL_DECEMBER,
|
|
/** Value of the <code>UCAL_MONTH</code> field indicating the
|
|
* thirteenth month of the year. Although the Gregorian calendar
|
|
* does not use this value, lunar calendars do.
|
|
*/
|
|
UCAL_UNDECIMBER
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarMonths UCalendarMonths;
|
|
|
|
/** Possible AM/PM values in a UCalendar
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarAMPMs {
|
|
/** AM */
|
|
UCAL_AM,
|
|
/** PM */
|
|
UCAL_PM
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarAMPMs UCalendarAMPMs;
|
|
|
|
/**
|
|
* System time zone type constants used by filtering zones
|
|
* in ucal_openTimeZoneIDEnumeration.
|
|
* @see ucal_openTimeZoneIDEnumeration
|
|
* @stable ICU 4.8
|
|
*/
|
|
enum USystemTimeZoneType {
|
|
/**
|
|
* Any system zones.
|
|
* @stable ICU 4.8
|
|
*/
|
|
UCAL_ZONE_TYPE_ANY,
|
|
/**
|
|
* Canonical system zones.
|
|
* @stable ICU 4.8
|
|
*/
|
|
UCAL_ZONE_TYPE_CANONICAL,
|
|
/**
|
|
* Canonical system zones associated with actual locations.
|
|
* @stable ICU 4.8
|
|
*/
|
|
UCAL_ZONE_TYPE_CANONICAL_LOCATION
|
|
};
|
|
|
|
/** @stable ICU 4.8 */
|
|
typedef enum USystemTimeZoneType USystemTimeZoneType;
|
|
|
|
/**
|
|
* Create an enumeration over system time zone IDs with the given
|
|
* filter conditions.
|
|
* @param zoneType The system time zone type.
|
|
* @param region The ISO 3166 two-letter country code or UN M.49
|
|
* three-digit area code. When NULL, no filtering
|
|
* done by region.
|
|
* @param rawOffset An offset from GMT in milliseconds, ignoring the
|
|
* effect of daylight savings time, if any. When NULL,
|
|
* no filtering done by zone offset.
|
|
* @param ec A pointer to an UErrorCode to receive any errors
|
|
* @return an enumeration object that the caller must dispose of
|
|
* using enum_close(), or NULL upon failure. In case of failure,
|
|
* *ec will indicate the error.
|
|
* @stable ICU 4.8
|
|
*/
|
|
U_STABLE UEnumeration* U_EXPORT2
|
|
ucal_openTimeZoneIDEnumeration(USystemTimeZoneType zoneType, const char* region,
|
|
const int32_t* rawOffset, UErrorCode* ec);
|
|
|
|
/**
|
|
* Create an enumeration over all time zones.
|
|
*
|
|
* @param ec input/output error code
|
|
*
|
|
* @return an enumeration object that the caller must dispose of using
|
|
* uenum_close(), or NULL upon failure. In case of failure *ec will
|
|
* indicate the error.
|
|
*
|
|
* @stable ICU 2.6
|
|
*/
|
|
U_STABLE UEnumeration* U_EXPORT2
|
|
ucal_openTimeZones(UErrorCode* ec);
|
|
|
|
/**
|
|
* Create an enumeration over all time zones associated with the given
|
|
* country. Some zones are affiliated with no country (e.g., "UTC");
|
|
* these may also be retrieved, as a group.
|
|
*
|
|
* @param country the ISO 3166 two-letter country code, or NULL to
|
|
* retrieve zones not affiliated with any country
|
|
*
|
|
* @param ec input/output error code
|
|
*
|
|
* @return an enumeration object that the caller must dispose of using
|
|
* uenum_close(), or NULL upon failure. In case of failure *ec will
|
|
* indicate the error.
|
|
*
|
|
* @stable ICU 2.6
|
|
*/
|
|
U_STABLE UEnumeration* U_EXPORT2
|
|
ucal_openCountryTimeZones(const char* country, UErrorCode* ec);
|
|
|
|
/**
|
|
* Return the default time zone. The default is determined initially
|
|
* by querying the host operating system. It may be changed with
|
|
* ucal_setDefaultTimeZone() or with the C++ TimeZone API.
|
|
*
|
|
* @param result A buffer to receive the result, or NULL
|
|
*
|
|
* @param resultCapacity The capacity of the result buffer
|
|
*
|
|
* @param ec input/output error code
|
|
*
|
|
* @return The result string length, not including the terminating
|
|
* null
|
|
*
|
|
* @stable ICU 2.6
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getDefaultTimeZone(UChar* result, int32_t resultCapacity, UErrorCode* ec);
|
|
|
|
/**
|
|
* Set the default time zone.
|
|
*
|
|
* @param zoneID null-terminated time zone ID
|
|
*
|
|
* @param ec input/output error code
|
|
*
|
|
* @stable ICU 2.6
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setDefaultTimeZone(const UChar* zoneID, UErrorCode* ec);
|
|
|
|
/**
|
|
* Return the amount of time in milliseconds that the clock is
|
|
* advanced during daylight savings time for the given time zone, or
|
|
* zero if the time zone does not observe daylight savings time.
|
|
*
|
|
* @param zoneID null-terminated time zone ID
|
|
*
|
|
* @param ec input/output error code
|
|
*
|
|
* @return the number of milliseconds the time is advanced with
|
|
* respect to standard time when the daylight savings rules are in
|
|
* effect. This is always a non-negative number, most commonly either
|
|
* 3,600,000 (one hour) or zero.
|
|
*
|
|
* @stable ICU 2.6
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getDSTSavings(const UChar* zoneID, UErrorCode* ec);
|
|
|
|
/**
|
|
* Get the current date and time.
|
|
* The value returned is represented as milliseconds from the epoch.
|
|
* @return The current date and time.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UDate U_EXPORT2
|
|
ucal_getNow(void);
|
|
|
|
/**
|
|
* Open a UCalendar.
|
|
* A UCalendar may be used to convert a millisecond value to a year,
|
|
* month, and day.
|
|
* <p>
|
|
* Note: When unknown TimeZone ID is specified or if the TimeZone ID specified is "Etc/Unknown",
|
|
* the UCalendar returned by the function is initialized with GMT zone with TimeZone ID
|
|
* <code>UCAL_UNKNOWN_ZONE_ID</code> ("Etc/Unknown") without any errors/warnings. If you want
|
|
* to check if a TimeZone ID is valid prior to this function, use <code>ucal_getCanonicalTimeZoneID</code>.
|
|
*
|
|
* @param zoneID The desired TimeZone ID. If 0, use the default time zone.
|
|
* @param len The length of zoneID, or -1 if null-terminated.
|
|
* @param locale The desired locale
|
|
* @param type The type of UCalendar to open. This can be UCAL_GREGORIAN to open the Gregorian
|
|
* calendar for the locale, or UCAL_DEFAULT to open the default calendar for the locale (the
|
|
* default calendar may also be Gregorian). To open a specific non-Gregorian calendar for the
|
|
* locale, use uloc_setKeywordValue to set the value of the calendar keyword for the locale
|
|
* and then pass the locale to ucal_open with UCAL_DEFAULT as the type.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return A pointer to a UCalendar, or 0 if an error occurred.
|
|
* @see #UCAL_UNKNOWN_ZONE_ID
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UCalendar* U_EXPORT2
|
|
ucal_open(const UChar* zoneID,
|
|
int32_t len,
|
|
const char* locale,
|
|
UCalendarType type,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Close a UCalendar.
|
|
* Once closed, a UCalendar may no longer be used.
|
|
* @param cal The UCalendar to close.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_close(UCalendar *cal);
|
|
|
|
#if U_SHOW_CPLUSPLUS_API
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
/**
|
|
* \class LocalUCalendarPointer
|
|
* "Smart pointer" class, closes a UCalendar via ucal_close().
|
|
* For most methods see the LocalPointerBase base class.
|
|
*
|
|
* @see LocalPointerBase
|
|
* @see LocalPointer
|
|
* @stable ICU 4.4
|
|
*/
|
|
U_DEFINE_LOCAL_OPEN_POINTER(LocalUCalendarPointer, UCalendar, ucal_close);
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif
|
|
|
|
/**
|
|
* Open a copy of a UCalendar.
|
|
* This function performs a deep copy.
|
|
* @param cal The calendar to copy
|
|
* @param status A pointer to an UErrorCode to receive any errors.
|
|
* @return A pointer to a UCalendar identical to cal.
|
|
* @stable ICU 4.0
|
|
*/
|
|
U_STABLE UCalendar* U_EXPORT2
|
|
ucal_clone(const UCalendar* cal,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Set the TimeZone used by a UCalendar.
|
|
* A UCalendar uses a timezone for converting from Greenwich time to local time.
|
|
* @param cal The UCalendar to set.
|
|
* @param zoneID The desired TimeZone ID. If 0, use the default time zone.
|
|
* @param len The length of zoneID, or -1 if null-terminated.
|
|
* @param status A pointer to an UErrorCode to receive any errors.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setTimeZone(UCalendar* cal,
|
|
const UChar* zoneID,
|
|
int32_t len,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Get the ID of the UCalendar's time zone.
|
|
*
|
|
* @param cal The UCalendar to query.
|
|
* @param result Receives the UCalendar's time zone ID.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status Receives the status.
|
|
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
|
|
* @stable ICU 51
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getTimeZoneID(const UCalendar *cal,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Possible formats for a UCalendar's display name
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarDisplayNameType {
|
|
/** Standard display name */
|
|
UCAL_STANDARD,
|
|
/** Short standard display name */
|
|
UCAL_SHORT_STANDARD,
|
|
/** Daylight savings display name */
|
|
UCAL_DST,
|
|
/** Short daylight savings display name */
|
|
UCAL_SHORT_DST
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarDisplayNameType UCalendarDisplayNameType;
|
|
|
|
/**
|
|
* Get the display name for a UCalendar's TimeZone.
|
|
* A display name is suitable for presentation to a user.
|
|
* @param cal The UCalendar to query.
|
|
* @param type The desired display name format; one of UCAL_STANDARD, UCAL_SHORT_STANDARD,
|
|
* UCAL_DST, UCAL_SHORT_DST
|
|
* @param locale The desired locale for the display name.
|
|
* @param result A pointer to a buffer to receive the formatted number.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getTimeZoneDisplayName(const UCalendar* cal,
|
|
UCalendarDisplayNameType type,
|
|
const char* locale,
|
|
UChar* result,
|
|
int32_t resultLength,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Determine if a UCalendar is currently in daylight savings time.
|
|
* Daylight savings time is not used in all parts of the world.
|
|
* @param cal The UCalendar to query.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return TRUE if cal is currently in daylight savings time, FALSE otherwise
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
ucal_inDaylightTime(const UCalendar* cal,
|
|
UErrorCode* status );
|
|
|
|
/**
|
|
* Sets the GregorianCalendar change date. This is the point when the switch from
|
|
* Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October
|
|
* 15, 1582. Previous to this time and date will be Julian dates.
|
|
*
|
|
* This function works only for Gregorian calendars. If the UCalendar is not
|
|
* an instance of a Gregorian calendar, then a U_UNSUPPORTED_ERROR
|
|
* error code is set.
|
|
*
|
|
* @param cal The calendar object.
|
|
* @param date The given Gregorian cutover date.
|
|
* @param pErrorCode Pointer to a standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
*
|
|
* @see GregorianCalendar::setGregorianChange
|
|
* @see ucal_getGregorianChange
|
|
* @stable ICU 3.6
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setGregorianChange(UCalendar *cal, UDate date, UErrorCode *pErrorCode);
|
|
|
|
/**
|
|
* Gets the Gregorian Calendar change date. This is the point when the switch from
|
|
* Julian dates to Gregorian dates occurred. Default is 00:00:00 local time, October
|
|
* 15, 1582. Previous to this time and date will be Julian dates.
|
|
*
|
|
* This function works only for Gregorian calendars. If the UCalendar is not
|
|
* an instance of a Gregorian calendar, then a U_UNSUPPORTED_ERROR
|
|
* error code is set.
|
|
*
|
|
* @param cal The calendar object.
|
|
* @param pErrorCode Pointer to a standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return The Gregorian cutover time for this calendar.
|
|
*
|
|
* @see GregorianCalendar::getGregorianChange
|
|
* @see ucal_setGregorianChange
|
|
* @stable ICU 3.6
|
|
*/
|
|
U_STABLE UDate U_EXPORT2
|
|
ucal_getGregorianChange(const UCalendar *cal, UErrorCode *pErrorCode);
|
|
|
|
/**
|
|
* Types of UCalendar attributes
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarAttribute {
|
|
/**
|
|
* Lenient parsing
|
|
* @stable ICU 2.0
|
|
*/
|
|
UCAL_LENIENT,
|
|
/**
|
|
* First day of week
|
|
* @stable ICU 2.0
|
|
*/
|
|
UCAL_FIRST_DAY_OF_WEEK,
|
|
/**
|
|
* Minimum number of days in first week
|
|
* @stable ICU 2.0
|
|
*/
|
|
UCAL_MINIMAL_DAYS_IN_FIRST_WEEK,
|
|
/**
|
|
* The behavior for handling wall time repeating multiple times
|
|
* at negative time zone offset transitions
|
|
* @stable ICU 49
|
|
*/
|
|
UCAL_REPEATED_WALL_TIME,
|
|
/**
|
|
* The behavior for handling skipped wall time at positive time
|
|
* zone offset transitions.
|
|
* @stable ICU 49
|
|
*/
|
|
UCAL_SKIPPED_WALL_TIME
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarAttribute UCalendarAttribute;
|
|
|
|
/**
|
|
* Options for handling ambiguous wall time at time zone
|
|
* offset transitions.
|
|
* @stable ICU 49
|
|
*/
|
|
enum UCalendarWallTimeOption {
|
|
/**
|
|
* An ambiguous wall time to be interpreted as the latest.
|
|
* This option is valid for UCAL_REPEATED_WALL_TIME and
|
|
* UCAL_SKIPPED_WALL_TIME.
|
|
* @stable ICU 49
|
|
*/
|
|
UCAL_WALLTIME_LAST,
|
|
/**
|
|
* An ambiguous wall time to be interpreted as the earliest.
|
|
* This option is valid for UCAL_REPEATED_WALL_TIME and
|
|
* UCAL_SKIPPED_WALL_TIME.
|
|
* @stable ICU 49
|
|
*/
|
|
UCAL_WALLTIME_FIRST,
|
|
/**
|
|
* An ambiguous wall time to be interpreted as the next valid
|
|
* wall time. This option is valid for UCAL_SKIPPED_WALL_TIME.
|
|
* @stable ICU 49
|
|
*/
|
|
UCAL_WALLTIME_NEXT_VALID
|
|
};
|
|
/** @stable ICU 49 */
|
|
typedef enum UCalendarWallTimeOption UCalendarWallTimeOption;
|
|
|
|
/**
|
|
* Get a numeric attribute associated with a UCalendar.
|
|
* Numeric attributes include the first day of the week, or the minimal numbers
|
|
* of days in the first week of the month.
|
|
* @param cal The UCalendar to query.
|
|
* @param attr The desired attribute; one of UCAL_LENIENT, UCAL_FIRST_DAY_OF_WEEK,
|
|
* UCAL_MINIMAL_DAYS_IN_FIRST_WEEK, UCAL_REPEATED_WALL_TIME or UCAL_SKIPPED_WALL_TIME
|
|
* @return The value of attr.
|
|
* @see ucal_setAttribute
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getAttribute(const UCalendar* cal,
|
|
UCalendarAttribute attr);
|
|
|
|
/**
|
|
* Set a numeric attribute associated with a UCalendar.
|
|
* Numeric attributes include the first day of the week, or the minimal numbers
|
|
* of days in the first week of the month.
|
|
* @param cal The UCalendar to set.
|
|
* @param attr The desired attribute; one of UCAL_LENIENT, UCAL_FIRST_DAY_OF_WEEK,
|
|
* UCAL_MINIMAL_DAYS_IN_FIRST_WEEK, UCAL_REPEATED_WALL_TIME or UCAL_SKIPPED_WALL_TIME
|
|
* @param newValue The new value of attr.
|
|
* @see ucal_getAttribute
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setAttribute(UCalendar* cal,
|
|
UCalendarAttribute attr,
|
|
int32_t newValue);
|
|
|
|
/**
|
|
* Get a locale for which calendars are available.
|
|
* A UCalendar in a locale returned by this function will contain the correct
|
|
* day and month names for the locale.
|
|
* @param localeIndex The index of the desired locale.
|
|
* @return A locale for which calendars are available, or 0 if none.
|
|
* @see ucal_countAvailable
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE const char* U_EXPORT2
|
|
ucal_getAvailable(int32_t localeIndex);
|
|
|
|
/**
|
|
* Determine how many locales have calendars available.
|
|
* This function is most useful as determining the loop ending condition for
|
|
* calls to \ref ucal_getAvailable.
|
|
* @return The number of locales for which calendars are available.
|
|
* @see ucal_getAvailable
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_countAvailable(void);
|
|
|
|
/**
|
|
* Get a UCalendar's current time in millis.
|
|
* The time is represented as milliseconds from the epoch.
|
|
* @param cal The UCalendar to query.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The calendar's current time in millis.
|
|
* @see ucal_setMillis
|
|
* @see ucal_setDate
|
|
* @see ucal_setDateTime
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UDate U_EXPORT2
|
|
ucal_getMillis(const UCalendar* cal,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Set a UCalendar's current time in millis.
|
|
* The time is represented as milliseconds from the epoch.
|
|
* @param cal The UCalendar to set.
|
|
* @param dateTime The desired date and time.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see ucal_getMillis
|
|
* @see ucal_setDate
|
|
* @see ucal_setDateTime
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setMillis(UCalendar* cal,
|
|
UDate dateTime,
|
|
UErrorCode* status );
|
|
|
|
/**
|
|
* Set a UCalendar's current date.
|
|
* The date is represented as a series of 32-bit integers.
|
|
* @param cal The UCalendar to set.
|
|
* @param year The desired year.
|
|
* @param month The desired month; one of UCAL_JANUARY, UCAL_FEBRUARY, UCAL_MARCH, UCAL_APRIL, UCAL_MAY,
|
|
* UCAL_JUNE, UCAL_JULY, UCAL_AUGUST, UCAL_SEPTEMBER, UCAL_OCTOBER, UCAL_NOVEMBER, UCAL_DECEMBER, UCAL_UNDECIMBER
|
|
* @param date The desired day of the month.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see ucal_getMillis
|
|
* @see ucal_setMillis
|
|
* @see ucal_setDateTime
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setDate(UCalendar* cal,
|
|
int32_t year,
|
|
int32_t month,
|
|
int32_t date,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Set a UCalendar's current date.
|
|
* The date is represented as a series of 32-bit integers.
|
|
* @param cal The UCalendar to set.
|
|
* @param year The desired year.
|
|
* @param month The desired month; one of UCAL_JANUARY, UCAL_FEBRUARY, UCAL_MARCH, UCAL_APRIL, UCAL_MAY,
|
|
* UCAL_JUNE, UCAL_JULY, UCAL_AUGUST, UCAL_SEPTEMBER, UCAL_OCTOBER, UCAL_NOVEMBER, UCAL_DECEMBER, UCAL_UNDECIMBER
|
|
* @param date The desired day of the month.
|
|
* @param hour The desired hour of day.
|
|
* @param minute The desired minute.
|
|
* @param second The desirec second.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see ucal_getMillis
|
|
* @see ucal_setMillis
|
|
* @see ucal_setDate
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_setDateTime(UCalendar* cal,
|
|
int32_t year,
|
|
int32_t month,
|
|
int32_t date,
|
|
int32_t hour,
|
|
int32_t minute,
|
|
int32_t second,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Returns TRUE if two UCalendars are equivalent. Equivalent
|
|
* UCalendars will behave identically, but they may be set to
|
|
* different times.
|
|
* @param cal1 The first of the UCalendars to compare.
|
|
* @param cal2 The second of the UCalendars to compare.
|
|
* @return TRUE if cal1 and cal2 are equivalent, FALSE otherwise.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
ucal_equivalentTo(const UCalendar* cal1,
|
|
const UCalendar* cal2);
|
|
|
|
/**
|
|
* Add a specified signed amount to a particular field in a UCalendar.
|
|
* This can modify more significant fields in the calendar.
|
|
* Adding a positive value always means moving forward in time, so for the Gregorian calendar,
|
|
* starting with 100 BC and adding +1 to year results in 99 BC (even though this actually reduces
|
|
* the numeric value of the field itself).
|
|
* @param cal The UCalendar to which to add.
|
|
* @param field The field to which to add the signed value; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param amount The signed amount to add to field. If the amount causes the value
|
|
* to exceed to maximum or minimum values for that field, other fields are modified
|
|
* to preserve the magnitude of the change.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see ucal_roll
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_add(UCalendar* cal,
|
|
UCalendarDateFields field,
|
|
int32_t amount,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Add a specified signed amount to a particular field in a UCalendar.
|
|
* This will not modify more significant fields in the calendar.
|
|
* Rolling by a positive value always means moving forward in time (unless the limit of the
|
|
* field is reached, in which case it may pin or wrap), so for Gregorian calendar,
|
|
* starting with 100 BC and rolling the year by +1 results in 99 BC.
|
|
* When eras have a definite beginning and end (as in the Chinese calendar, or as in most eras in the
|
|
* Japanese calendar) then rolling the year past either limit of the era will cause the year to wrap around.
|
|
* When eras only have a limit at one end, then attempting to roll the year past that limit will result in
|
|
* pinning the year at that limit. Note that for most calendars in which era 0 years move forward in time
|
|
* (such as Buddhist, Hebrew, or Islamic), it is possible for add or roll to result in negative years for
|
|
* era 0 (that is the only way to represent years before the calendar epoch).
|
|
* @param cal The UCalendar to which to add.
|
|
* @param field The field to which to add the signed value; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param amount The signed amount to add to field. If the amount causes the value
|
|
* to exceed to maximum or minimum values for that field, the field is pinned to a permissible
|
|
* value.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see ucal_add
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_roll(UCalendar* cal,
|
|
UCalendarDateFields field,
|
|
int32_t amount,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Get the current value of a field from a UCalendar.
|
|
* All fields are represented as 32-bit integers.
|
|
* @param cal The UCalendar to query.
|
|
* @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The value of the desired field.
|
|
* @see ucal_set
|
|
* @see ucal_isSet
|
|
* @see ucal_clearField
|
|
* @see ucal_clear
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_get(const UCalendar* cal,
|
|
UCalendarDateFields field,
|
|
UErrorCode* status );
|
|
|
|
/**
|
|
* Set the value of a field in a UCalendar.
|
|
* All fields are represented as 32-bit integers.
|
|
* @param cal The UCalendar to set.
|
|
* @param field The field to set; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param value The desired value of field.
|
|
* @see ucal_get
|
|
* @see ucal_isSet
|
|
* @see ucal_clearField
|
|
* @see ucal_clear
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_set(UCalendar* cal,
|
|
UCalendarDateFields field,
|
|
int32_t value);
|
|
|
|
/**
|
|
* Determine if a field in a UCalendar is set.
|
|
* All fields are represented as 32-bit integers.
|
|
* @param cal The UCalendar to query.
|
|
* @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @return TRUE if field is set, FALSE otherwise.
|
|
* @see ucal_get
|
|
* @see ucal_set
|
|
* @see ucal_clearField
|
|
* @see ucal_clear
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
ucal_isSet(const UCalendar* cal,
|
|
UCalendarDateFields field);
|
|
|
|
/**
|
|
* Clear a field in a UCalendar.
|
|
* All fields are represented as 32-bit integers.
|
|
* @param cal The UCalendar containing the field to clear.
|
|
* @param field The field to clear; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @see ucal_get
|
|
* @see ucal_set
|
|
* @see ucal_isSet
|
|
* @see ucal_clear
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_clearField(UCalendar* cal,
|
|
UCalendarDateFields field);
|
|
|
|
/**
|
|
* Clear all fields in a UCalendar.
|
|
* All fields are represented as 32-bit integers.
|
|
* @param calendar The UCalendar to clear.
|
|
* @see ucal_get
|
|
* @see ucal_set
|
|
* @see ucal_isSet
|
|
* @see ucal_clearField
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
ucal_clear(UCalendar* calendar);
|
|
|
|
/**
|
|
* Possible limit values for a UCalendar
|
|
* @stable ICU 2.0
|
|
*/
|
|
enum UCalendarLimitType {
|
|
/** Minimum value */
|
|
UCAL_MINIMUM,
|
|
/** Maximum value */
|
|
UCAL_MAXIMUM,
|
|
/** Greatest minimum value */
|
|
UCAL_GREATEST_MINIMUM,
|
|
/** Leaest maximum value */
|
|
UCAL_LEAST_MAXIMUM,
|
|
/** Actual minimum value */
|
|
UCAL_ACTUAL_MINIMUM,
|
|
/** Actual maximum value */
|
|
UCAL_ACTUAL_MAXIMUM
|
|
};
|
|
|
|
/** @stable ICU 2.0 */
|
|
typedef enum UCalendarLimitType UCalendarLimitType;
|
|
|
|
/**
|
|
* Determine a limit for a field in a UCalendar.
|
|
* A limit is a maximum or minimum value for a field.
|
|
* @param cal The UCalendar to query.
|
|
* @param field The desired field; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param type The desired critical point; one of UCAL_MINIMUM, UCAL_MAXIMUM, UCAL_GREATEST_MINIMUM,
|
|
* UCAL_LEAST_MAXIMUM, UCAL_ACTUAL_MINIMUM, UCAL_ACTUAL_MAXIMUM
|
|
* @param status A pointer to an UErrorCode to receive any errors.
|
|
* @return The requested value.
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getLimit(const UCalendar* cal,
|
|
UCalendarDateFields field,
|
|
UCalendarLimitType type,
|
|
UErrorCode* status);
|
|
|
|
/** Get the locale for this calendar object. You can choose between valid and actual locale.
|
|
* @param cal The calendar object
|
|
* @param type type of the locale we're looking for (valid or actual)
|
|
* @param status error code for the operation
|
|
* @return the locale name
|
|
* @stable ICU 2.8
|
|
*/
|
|
U_STABLE const char * U_EXPORT2
|
|
ucal_getLocaleByType(const UCalendar *cal, ULocDataLocaleType type, UErrorCode* status);
|
|
|
|
/**
|
|
* Returns the timezone data version currently used by ICU.
|
|
* @param status error code for the operation
|
|
* @return the version string, such as "2007f"
|
|
* @stable ICU 3.8
|
|
*/
|
|
U_STABLE const char * U_EXPORT2
|
|
ucal_getTZDataVersion(UErrorCode* status);
|
|
|
|
/**
|
|
* Returns the canonical system timezone ID or the normalized
|
|
* custom time zone ID for the given time zone ID.
|
|
* @param id The input timezone ID to be canonicalized.
|
|
* @param len The length of id, or -1 if null-terminated.
|
|
* @param result The buffer receives the canonical system timezone ID
|
|
* or the custom timezone ID in normalized format.
|
|
* @param resultCapacity The capacity of the result buffer.
|
|
* @param isSystemID Receives if the given ID is a known system
|
|
* timezone ID.
|
|
* @param status Receives the status. When the given timezone ID
|
|
* is neither a known system time zone ID nor a
|
|
* valid custom timezone ID, U_ILLEGAL_ARGUMENT_ERROR
|
|
* is set.
|
|
* @return The result string length, not including the terminating
|
|
* null.
|
|
* @stable ICU 4.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getCanonicalTimeZoneID(const UChar* id, int32_t len,
|
|
UChar* result, int32_t resultCapacity, UBool *isSystemID, UErrorCode* status);
|
|
/**
|
|
* Get the resource keyword value string designating the calendar type for the UCalendar.
|
|
* @param cal The UCalendar to query.
|
|
* @param status The error code for the operation.
|
|
* @return The resource keyword value string.
|
|
* @stable ICU 4.2
|
|
*/
|
|
U_STABLE const char * U_EXPORT2
|
|
ucal_getType(const UCalendar *cal, UErrorCode* status);
|
|
|
|
/**
|
|
* Given a key and a locale, returns an array of string values in a preferred
|
|
* order that would make a difference. These are all and only those values where
|
|
* the open (creation) of the service with the locale formed from the input locale
|
|
* plus input keyword and that value has different behavior than creation with the
|
|
* input locale alone.
|
|
* @param key one of the keys supported by this service. For now, only
|
|
* "calendar" is supported.
|
|
* @param locale the locale
|
|
* @param commonlyUsed if set to true it will return only commonly used values
|
|
* with the given locale in preferred order. Otherwise,
|
|
* it will return all the available values for the locale.
|
|
* @param status error status
|
|
* @return a string enumeration over keyword values for the given key and the locale.
|
|
* @stable ICU 4.2
|
|
*/
|
|
U_STABLE UEnumeration* U_EXPORT2
|
|
ucal_getKeywordValuesForLocale(const char* key,
|
|
const char* locale,
|
|
UBool commonlyUsed,
|
|
UErrorCode* status);
|
|
|
|
|
|
/** Weekday types, as returned by ucal_getDayOfWeekType().
|
|
* @stable ICU 4.4
|
|
*/
|
|
enum UCalendarWeekdayType {
|
|
/**
|
|
* Designates a full weekday (no part of the day is included in the weekend).
|
|
* @stable ICU 4.4
|
|
*/
|
|
UCAL_WEEKDAY,
|
|
/**
|
|
* Designates a full weekend day (the entire day is included in the weekend).
|
|
* @stable ICU 4.4
|
|
*/
|
|
UCAL_WEEKEND,
|
|
/**
|
|
* Designates a day that starts as a weekday and transitions to the weekend.
|
|
* Call ucal_getWeekendTransition() to get the time of transition.
|
|
* @stable ICU 4.4
|
|
*/
|
|
UCAL_WEEKEND_ONSET,
|
|
/**
|
|
* Designates a day that starts as the weekend and transitions to a weekday.
|
|
* Call ucal_getWeekendTransition() to get the time of transition.
|
|
* @stable ICU 4.4
|
|
*/
|
|
UCAL_WEEKEND_CEASE
|
|
};
|
|
|
|
/** @stable ICU 4.4 */
|
|
typedef enum UCalendarWeekdayType UCalendarWeekdayType;
|
|
|
|
/**
|
|
* Returns whether the given day of the week is a weekday, a weekend day,
|
|
* or a day that transitions from one to the other, for the locale and
|
|
* calendar system associated with this UCalendar (the locale's region is
|
|
* often the most determinant factor). If a transition occurs at midnight,
|
|
* then the days before and after the transition will have the
|
|
* type UCAL_WEEKDAY or UCAL_WEEKEND. If a transition occurs at a time
|
|
* other than midnight, then the day of the transition will have
|
|
* the type UCAL_WEEKEND_ONSET or UCAL_WEEKEND_CEASE. In this case, the
|
|
* function ucal_getWeekendTransition() will return the point of
|
|
* transition.
|
|
* @param cal The UCalendar to query.
|
|
* @param dayOfWeek The day of the week whose type is desired (UCAL_SUNDAY..UCAL_SATURDAY).
|
|
* @param status The error code for the operation.
|
|
* @return The UCalendarWeekdayType for the day of the week.
|
|
* @stable ICU 4.4
|
|
*/
|
|
U_STABLE UCalendarWeekdayType U_EXPORT2
|
|
ucal_getDayOfWeekType(const UCalendar *cal, UCalendarDaysOfWeek dayOfWeek, UErrorCode* status);
|
|
|
|
/**
|
|
* Returns the time during the day at which the weekend begins or ends in
|
|
* this calendar system. If ucal_getDayOfWeekType() returns UCAL_WEEKEND_ONSET
|
|
* for the specified dayOfWeek, return the time at which the weekend begins.
|
|
* If ucal_getDayOfWeekType() returns UCAL_WEEKEND_CEASE for the specified dayOfWeek,
|
|
* return the time at which the weekend ends. If ucal_getDayOfWeekType() returns
|
|
* some other UCalendarWeekdayType for the specified dayOfWeek, is it an error condition
|
|
* (U_ILLEGAL_ARGUMENT_ERROR).
|
|
* @param cal The UCalendar to query.
|
|
* @param dayOfWeek The day of the week for which the weekend transition time is
|
|
* desired (UCAL_SUNDAY..UCAL_SATURDAY).
|
|
* @param status The error code for the operation.
|
|
* @return The milliseconds after midnight at which the weekend begins or ends.
|
|
* @stable ICU 4.4
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getWeekendTransition(const UCalendar *cal, UCalendarDaysOfWeek dayOfWeek, UErrorCode *status);
|
|
|
|
/**
|
|
* Returns TRUE if the given UDate is in the weekend in
|
|
* this calendar system.
|
|
* @param cal The UCalendar to query.
|
|
* @param date The UDate in question.
|
|
* @param status The error code for the operation.
|
|
* @return TRUE if the given UDate is in the weekend in
|
|
* this calendar system, FALSE otherwise.
|
|
* @stable ICU 4.4
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
ucal_isWeekend(const UCalendar *cal, UDate date, UErrorCode *status);
|
|
|
|
/**
|
|
* Return the difference between the target time and the time this calendar object is currently set to.
|
|
* If the target time is after the current calendar setting, the the returned value will be positive.
|
|
* The field parameter specifies the units of the return value. For example, if field is UCAL_MONTH
|
|
* and ucal_getFieldDifference returns 3, then the target time is 3 to less than 4 months after the
|
|
* current calendar setting.
|
|
*
|
|
* As a side effect of this call, this calendar is advanced toward target by the given amount. That is,
|
|
* calling this function has the side effect of calling ucal_add on this calendar with the specified
|
|
* field and an amount equal to the return value from this function.
|
|
*
|
|
* A typical way of using this function is to call it first with the largest field of interest, then
|
|
* with progressively smaller fields.
|
|
*
|
|
* @param cal The UCalendar to compare and update.
|
|
* @param target The target date to compare to the current calendar setting.
|
|
* @param field The field to compare; one of UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
* UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_DATE, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK,
|
|
* UCAL_DAY_OF_WEEK_IN_MONTH, UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR_OF_DAY, UCAL_MINUTE, UCAL_SECOND,
|
|
* UCAL_MILLISECOND, UCAL_ZONE_OFFSET, UCAL_DST_OFFSET.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The date difference for the specified field.
|
|
* @stable ICU 4.8
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getFieldDifference(UCalendar* cal,
|
|
UDate target,
|
|
UCalendarDateFields field,
|
|
UErrorCode* status);
|
|
|
|
/**
|
|
* Time zone transition types for ucal_getTimeZoneTransitionDate
|
|
* @stable ICU 50
|
|
*/
|
|
enum UTimeZoneTransitionType {
|
|
/**
|
|
* Get the next transition after the current date,
|
|
* i.e. excludes the current date
|
|
* @stable ICU 50
|
|
*/
|
|
UCAL_TZ_TRANSITION_NEXT,
|
|
/**
|
|
* Get the next transition on or after the current date,
|
|
* i.e. may include the current date
|
|
* @stable ICU 50
|
|
*/
|
|
UCAL_TZ_TRANSITION_NEXT_INCLUSIVE,
|
|
/**
|
|
* Get the previous transition before the current date,
|
|
* i.e. excludes the current date
|
|
* @stable ICU 50
|
|
*/
|
|
UCAL_TZ_TRANSITION_PREVIOUS,
|
|
/**
|
|
* Get the previous transition on or before the current date,
|
|
* i.e. may include the current date
|
|
* @stable ICU 50
|
|
*/
|
|
UCAL_TZ_TRANSITION_PREVIOUS_INCLUSIVE
|
|
};
|
|
|
|
typedef enum UTimeZoneTransitionType UTimeZoneTransitionType; /**< @stable ICU 50 */
|
|
|
|
/**
|
|
* Get the UDate for the next/previous time zone transition relative to
|
|
* the calendar's current date, in the time zone to which the calendar
|
|
* is currently set. If there is no known time zone transition of the
|
|
* requested type relative to the calendar's date, the function returns
|
|
* FALSE.
|
|
* @param cal The UCalendar to query.
|
|
* @param type The type of transition desired.
|
|
* @param transition A pointer to a UDate to be set to the transition time.
|
|
* If the function returns FALSE, the value set is unspecified.
|
|
* @param status A pointer to a UErrorCode to receive any errors.
|
|
* @return TRUE if a valid transition time is set in *transition, FALSE
|
|
* otherwise.
|
|
* @stable ICU 50
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
ucal_getTimeZoneTransitionDate(const UCalendar* cal, UTimeZoneTransitionType type,
|
|
UDate* transition, UErrorCode* status);
|
|
|
|
/**
|
|
* Converts a system time zone ID to an equivalent Windows time zone ID. For example,
|
|
* Windows time zone ID "Pacific Standard Time" is returned for input "America/Los_Angeles".
|
|
*
|
|
* <p>There are system time zones that cannot be mapped to Windows zones. When the input
|
|
* system time zone ID is unknown or unmappable to a Windows time zone, then this
|
|
* function returns 0 as the result length, but the operation itself remains successful
|
|
* (no error status set on return).
|
|
*
|
|
* <p>This implementation utilizes <a href="http://unicode.org/cldr/charts/supplemental/zone_tzid.html">
|
|
* Zone-Tzid mapping data</a>. The mapping data is updated time to time. To get the latest changes,
|
|
* please read the ICU user guide section <a href="http://userguide.icu-project.org/datetime/timezone#TOC-Updating-the-Time-Zone-Data">
|
|
* Updating the Time Zone Data</a>.
|
|
*
|
|
* @param id A system time zone ID.
|
|
* @param len The length of <code>id</code>, or -1 if null-terminated.
|
|
* @param winid A buffer to receive a Windows time zone ID.
|
|
* @param winidCapacity The capacity of the result buffer <code>winid</code>.
|
|
* @param status Receives the status.
|
|
* @return The result string length, not including the terminating null.
|
|
* @see ucal_getTimeZoneIDForWindowsID
|
|
*
|
|
* @stable ICU 52
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getWindowsTimeZoneID(const UChar* id, int32_t len,
|
|
UChar* winid, int32_t winidCapacity, UErrorCode* status);
|
|
|
|
/**
|
|
* Converts a Windows time zone ID to an equivalent system time zone ID
|
|
* for a region. For example, system time zone ID "America/Los_Angeles" is returned
|
|
* for input Windows ID "Pacific Standard Time" and region "US" (or <code>null</code>),
|
|
* "America/Vancouver" is returned for the same Windows ID "Pacific Standard Time" and
|
|
* region "CA".
|
|
*
|
|
* <p>Not all Windows time zones can be mapped to system time zones. When the input
|
|
* Windows time zone ID is unknown or unmappable to a system time zone, then this
|
|
* function returns 0 as the result length, but the operation itself remains successful
|
|
* (no error status set on return).
|
|
*
|
|
* <p>This implementation utilizes <a href="http://unicode.org/cldr/charts/supplemental/zone_tzid.html">
|
|
* Zone-Tzid mapping data</a>. The mapping data is updated time to time. To get the latest changes,
|
|
* please read the ICU user guide section <a href="http://userguide.icu-project.org/datetime/timezone#TOC-Updating-the-Time-Zone-Data">
|
|
* Updating the Time Zone Data</a>.
|
|
*
|
|
* @param winid A Windows time zone ID.
|
|
* @param len The length of <code>winid</code>, or -1 if null-terminated.
|
|
* @param region A null-terminated region code, or <code>NULL</code> if no regional preference.
|
|
* @param id A buffer to receive a system time zone ID.
|
|
* @param idCapacity The capacity of the result buffer <code>id</code>.
|
|
* @param status Receives the status.
|
|
* @return The result string length, not including the terminating null.
|
|
* @see ucal_getWindowsTimeZoneID
|
|
*
|
|
* @stable ICU 52
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
ucal_getTimeZoneIDForWindowsID(const UChar* winid, int32_t len, const char* region,
|
|
UChar* id, int32_t idCapacity, UErrorCode* status);
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
#endif
|