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-// © 2016 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-/*
- ********************************************************************************
- * Copyright (C) 1997-2016, International Business Machines
- * Corporation and others. All Rights Reserved.
- ********************************************************************************
- *
- * File DATEFMT.H
- *
- * Modification History:
- *
- * Date Name Description
- * 02/19/97 aliu Converted from java.
- * 04/01/97 aliu Added support for centuries.
- * 07/23/98 stephen JDK 1.2 sync
- * 11/15/99 weiv Added support for week of year/day of week formatting
- ********************************************************************************
- */
-
-#ifndef DATEFMT_H
-#define DATEFMT_H
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_FORMATTING
-
-#include "unicode/udat.h"
-#include "unicode/calendar.h"
-#include "unicode/numfmt.h"
-#include "unicode/format.h"
-#include "unicode/locid.h"
-#include "unicode/enumset.h"
-#include "unicode/udisplaycontext.h"
-
-/**
- * \file
- * \brief C++ API: Abstract class for converting dates.
- */
-
-U_NAMESPACE_BEGIN
-
-class TimeZone;
-class DateTimePatternGenerator;
-
-/**
- * \cond
- * Export an explicit template instantiation. (See digitlst.h, datefmt.h, and others.)
- * (When building DLLs for Windows this is required.)
- */
-#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN && !defined(U_IN_DOXYGEN)
-template class U_I18N_API EnumSet<UDateFormatBooleanAttribute,
- 0,
- UDAT_BOOLEAN_ATTRIBUTE_COUNT>;
-#endif
-/** \endcond */
-
-/**
- * DateFormat is an abstract class for a family of classes that convert dates and
- * times from their internal representations to textual form and back again in a
- * language-independent manner. Converting from the internal representation (milliseconds
- * since midnight, January 1, 1970) to text is known as "formatting," and converting
- * from text to millis is known as "parsing." We currently define only one concrete
- * subclass of DateFormat: SimpleDateFormat, which can handle pretty much all normal
- * date formatting and parsing actions.
- * <P>
- * DateFormat helps you to format and parse dates for any locale. Your code can
- * be completely independent of the locale conventions for months, days of the
- * week, or even the calendar format: lunar vs. solar.
- * <P>
- * To format a date for the current Locale, use one of the static factory
- * methods:
- * <pre>
- * \code
- * DateFormat* dfmt = DateFormat::createDateInstance();
- * UDate myDate = Calendar::getNow();
- * UnicodeString myString;
- * myString = dfmt->format( myDate, myString );
- * \endcode
- * </pre>
- * If you are formatting multiple numbers, it is more efficient to get the
- * format and use it multiple times so that the system doesn't have to fetch the
- * information about the local language and country conventions multiple times.
- * <pre>
- * \code
- * DateFormat* df = DateFormat::createDateInstance();
- * UnicodeString myString;
- * UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
- * for (int32_t i = 0; i < 3; ++i) {
- * myString.remove();
- * cout << df->format( myDateArr[i], myString ) << endl;
- * }
- * \endcode
- * </pre>
- * To get specific fields of a date, you can use UFieldPosition to
- * get specific fields.
- * <pre>
- * \code
- * DateFormat* dfmt = DateFormat::createDateInstance();
- * FieldPosition pos(DateFormat::YEAR_FIELD);
- * UnicodeString myString;
- * myString = dfmt->format( myDate, myString );
- * cout << myString << endl;
- * cout << pos.getBeginIndex() << "," << pos. getEndIndex() << endl;
- * \endcode
- * </pre>
- * To format a date for a different Locale, specify it in the call to
- * createDateInstance().
- * <pre>
- * \code
- * DateFormat* df =
- * DateFormat::createDateInstance( DateFormat::SHORT, Locale::getFrance());
- * \endcode
- * </pre>
- * You can use a DateFormat to parse also.
- * <pre>
- * \code
- * UErrorCode status = U_ZERO_ERROR;
- * UDate myDate = df->parse(myString, status);
- * \endcode
- * </pre>
- * Use createDateInstance() to produce the normal date format for that country.
- * There are other static factory methods available. Use createTimeInstance()
- * to produce the normal time format for that country. Use createDateTimeInstance()
- * to produce a DateFormat that formats both date and time. You can pass in
- * different options to these factory methods to control the length of the
- * result; from SHORT to MEDIUM to LONG to FULL. The exact result depends on the
- * locale, but generally:
- * <ul type=round>
- * <li> SHORT is completely numeric, such as 12/13/52 or 3:30pm
- * <li> MEDIUM is longer, such as Jan 12, 1952
- * <li> LONG is longer, such as January 12, 1952 or 3:30:32pm
- * <li> FULL is pretty completely specified, such as
- * Tuesday, April 12, 1952 AD or 3:30:42pm PST.
- * </ul>
- * You can also set the time zone on the format if you wish. If you want even
- * more control over the format or parsing, (or want to give your users more
- * control), you can try casting the DateFormat you get from the factory methods
- * to a SimpleDateFormat. This will work for the majority of countries; just
- * remember to chck getDynamicClassID() before carrying out the cast.
- * <P>
- * You can also use forms of the parse and format methods with ParsePosition and
- * FieldPosition to allow you to
- * <ul type=round>
- * <li> Progressively parse through pieces of a string.
- * <li> Align any particular field, or find out where it is for selection
- * on the screen.
- * </ul>
- *
- * <p><em>User subclasses are not supported.</em> While clients may write
- * subclasses, such code will not necessarily work and will not be
- * guaranteed to work stably from release to release.
- */
-class U_I18N_API DateFormat : public Format {
-public:
-
- /**
- * Constants for various style patterns. These reflect the order of items in
- * the DateTimePatterns resource. There are 4 time patterns, 4 date patterns,
- * the default date-time pattern, and 4 date-time patterns. Each block of 4 values
- * in the resource occurs in the order full, long, medium, short.
- * @stable ICU 2.4
- */
- enum EStyle
- {
- kNone = -1,
-
- kFull = 0,
- kLong = 1,
- kMedium = 2,
- kShort = 3,
-
- kDateOffset = kShort + 1,
- // kFull + kDateOffset = 4
- // kLong + kDateOffset = 5
- // kMedium + kDateOffset = 6
- // kShort + kDateOffset = 7
-
- kDateTime = 8,
- // Default DateTime
-
- kDateTimeOffset = kDateTime + 1,
- // kFull + kDateTimeOffset = 9
- // kLong + kDateTimeOffset = 10
- // kMedium + kDateTimeOffset = 11
- // kShort + kDateTimeOffset = 12
-
- // relative dates
- kRelative = (1 << 7),
-
- kFullRelative = (kFull | kRelative),
-
- kLongRelative = kLong | kRelative,
-
- kMediumRelative = kMedium | kRelative,
-
- kShortRelative = kShort | kRelative,
-
-
- kDefault = kMedium,
-
-
-
- /**
- * These constants are provided for backwards compatibility only.
- * Please use the C++ style constants defined above.
- */
- FULL = kFull,
- LONG = kLong,
- MEDIUM = kMedium,
- SHORT = kShort,
- DEFAULT = kDefault,
- DATE_OFFSET = kDateOffset,
- NONE = kNone,
- DATE_TIME = kDateTime
- };
-
- /**
- * Destructor.
- * @stable ICU 2.0
- */
- virtual ~DateFormat();
-
- /**
- * Equality operator. Returns true if the two formats have the same behavior.
- * @stable ICU 2.0
- */
- virtual UBool operator==(const Format&) const;
-
-
- using Format::format;
-
- /**
- * Format an object to produce a string. This method handles Formattable
- * objects with a UDate type. If a the Formattable object type is not a Date,
- * then it returns a failing UErrorCode.
- *
- * @param obj The object to format. Must be a Date.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param pos On input: an alignment field, if desired.
- * On output: the offsets of the alignment field.
- * @param status Output param filled with success/failure status.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- virtual UnicodeString& format(const Formattable& obj,
- UnicodeString& appendTo,
- FieldPosition& pos,
- UErrorCode& status) const;
-
- /**
- * Format an object to produce a string. This method handles Formattable
- * objects with a UDate type. If a the Formattable object type is not a Date,
- * then it returns a failing UErrorCode.
- *
- * @param obj The object to format. Must be a Date.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param posIter On return, can be used to iterate over positions
- * of fields generated by this format call. Field values
- * are defined in UDateFormatField. Can be NULL.
- * @param status Output param filled with success/failure status.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 4.4
- */
- virtual UnicodeString& format(const Formattable& obj,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
- /**
- * Formats a date into a date/time string. This is an abstract method which
- * concrete subclasses must implement.
- * <P>
- * On input, the FieldPosition parameter may have its "field" member filled with
- * an enum value specifying a field. On output, the FieldPosition will be filled
- * in with the text offsets for that field.
- * <P> For example, given a time text
- * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
- * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
- * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
- * <P> Notice
- * that if the same time field appears more than once in a pattern, the status will
- * be set for the first occurence of that time field. For instance,
- * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
- * using the pattern "h a z (zzzz)" and the alignment field
- * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
- * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
- * occurence of the timezone pattern character 'z'.
- *
- * @param cal Calendar set to the date and time to be formatted
- * into a date/time string. When the calendar type is
- * different from the internal calendar held by this
- * DateFormat instance, the date and the time zone will
- * be inherited from the input calendar, but other calendar
- * field values will be calculated by the internal calendar.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param fieldPosition On input: an alignment field, if desired (see examples above)
- * On output: the offsets of the alignment field (see examples above)
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.1
- */
- virtual UnicodeString& format( Calendar& cal,
- UnicodeString& appendTo,
- FieldPosition& fieldPosition) const = 0;
-
- /**
- * Formats a date into a date/time string. Subclasses should implement this method.
- *
- * @param cal Calendar set to the date and time to be formatted
- * into a date/time string. When the calendar type is
- * different from the internal calendar held by this
- * DateFormat instance, the date and the time zone will
- * be inherited from the input calendar, but other calendar
- * field values will be calculated by the internal calendar.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param posIter On return, can be used to iterate over positions
- * of fields generated by this format call. Field values
- * are defined in UDateFormatField. Can be NULL.
- * @param status error status.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 4.4
- */
- virtual UnicodeString& format(Calendar& cal,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
- /**
- * Formats a UDate into a date/time string.
- * <P>
- * On input, the FieldPosition parameter may have its "field" member filled with
- * an enum value specifying a field. On output, the FieldPosition will be filled
- * in with the text offsets for that field.
- * <P> For example, given a time text
- * "1996.07.10 AD at 15:08:56 PDT", if the given fieldPosition.field is
- * UDAT_YEAR_FIELD, the offsets fieldPosition.beginIndex and
- * statfieldPositionus.getEndIndex will be set to 0 and 4, respectively.
- * <P> Notice
- * that if the same time field appears more than once in a pattern, the status will
- * be set for the first occurence of that time field. For instance,
- * formatting a UDate to the time string "1 PM PDT (Pacific Daylight Time)"
- * using the pattern "h a z (zzzz)" and the alignment field
- * DateFormat::TIMEZONE_FIELD, the offsets fieldPosition.beginIndex and
- * fieldPosition.getEndIndex will be set to 5 and 8, respectively, for the first
- * occurence of the timezone pattern character 'z'.
- *
- * @param date UDate to be formatted into a date/time string.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param fieldPosition On input: an alignment field, if desired (see examples above)
- * On output: the offsets of the alignment field (see examples above)
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- UnicodeString& format( UDate date,
- UnicodeString& appendTo,
- FieldPosition& fieldPosition) const;
-
- /**
- * Formats a UDate into a date/time string.
- *
- * @param date UDate to be formatted into a date/time string.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param posIter On return, can be used to iterate over positions
- * of fields generated by this format call. Field values
- * are defined in UDateFormatField. Can be NULL.
- * @param status error status.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 4.4
- */
- UnicodeString& format(UDate date,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
- /**
- * Formats a UDate into a date/time string. If there is a problem, you won't
- * know, using this method. Use the overloaded format() method which takes a
- * FieldPosition& to detect formatting problems.
- *
- * @param date The UDate value to be formatted into a string.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- UnicodeString& format(UDate date, UnicodeString& appendTo) const;
-
- /**
- * Parse a date/time string. For example, a time text "07/10/96 4:5 PM, PDT"
- * will be parsed into a UDate that is equivalent to Date(837039928046).
- * Parsing begins at the beginning of the string and proceeds as far as
- * possible. Assuming no parse errors were encountered, this function
- * doesn't return any information about how much of the string was consumed
- * by the parsing. If you need that information, use the version of
- * parse() that takes a ParsePosition.
- * <P>
- * By default, parsing is lenient: If the input is not in the form used by
- * this object's format method but can still be parsed as a date, then the
- * parse succeeds. Clients may insist on strict adherence to the format by
- * calling setLenient(false).
- * @see DateFormat::setLenient(boolean)
- * <P>
- * Note that the normal date formats associated with some calendars - such
- * as the Chinese lunar calendar - do not specify enough fields to enable
- * dates to be parsed unambiguously. In the case of the Chinese lunar
- * calendar, while the year within the current 60-year cycle is specified,
- * the number of such cycles since the start date of the calendar (in the
- * ERA field of the Calendar object) is not normally part of the format,
- * and parsing may assume the wrong era. For cases such as this it is
- * recommended that clients parse using the method
- * parse(const UnicodeString&, Calendar& cal, ParsePosition&)
- * with the Calendar passed in set to the current date, or to a date
- * within the era/cycle that should be assumed if absent in the format.
- *
- * @param text The date/time string to be parsed into a UDate value.
- * @param status Output param to be set to success/failure code. If
- * 'text' cannot be parsed, it will be set to a failure
- * code.
- * @return The parsed UDate value, if successful.
- * @stable ICU 2.0
- */
- virtual UDate parse( const UnicodeString& text,
- UErrorCode& status) const;
-
- /**
- * Parse a date/time string beginning at the given parse position. For
- * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
- * that is equivalent to Date(837039928046).
- * <P>
- * By default, parsing is lenient: If the input is not in the form used by
- * this object's format method but can still be parsed as a date, then the
- * parse succeeds. Clients may insist on strict adherence to the format by
- * calling setLenient(false).
- * @see DateFormat::setLenient(boolean)
- *
- * @param text The date/time string to be parsed.
- * @param cal A Calendar set on input to the date and time to be used for
- * missing values in the date/time string being parsed, and set
- * on output to the parsed date/time. When the calendar type is
- * different from the internal calendar held by this DateFormat
- * instance, the internal calendar will be cloned to a work
- * calendar set to the same milliseconds and time zone as the
- * cal parameter, field values will be parsed based on the work
- * calendar, then the result (milliseconds and time zone) will
- * be set in this calendar.
- * @param pos On input, the position at which to start parsing; on
- * output, the position at which parsing terminated, or the
- * start position if the parse failed.
- * @stable ICU 2.1
- */
- virtual void parse( const UnicodeString& text,
- Calendar& cal,
- ParsePosition& pos) const = 0;
-
- /**
- * Parse a date/time string beginning at the given parse position. For
- * example, a time text "07/10/96 4:5 PM, PDT" will be parsed into a Date
- * that is equivalent to Date(837039928046).
- * <P>
- * By default, parsing is lenient: If the input is not in the form used by
- * this object's format method but can still be parsed as a date, then the
- * parse succeeds. Clients may insist on strict adherence to the format by
- * calling setLenient(false).
- * @see DateFormat::setLenient(boolean)
- * <P>
- * Note that the normal date formats associated with some calendars - such
- * as the Chinese lunar calendar - do not specify enough fields to enable
- * dates to be parsed unambiguously. In the case of the Chinese lunar
- * calendar, while the year within the current 60-year cycle is specified,
- * the number of such cycles since the start date of the calendar (in the
- * ERA field of the Calendar object) is not normally part of the format,
- * and parsing may assume the wrong era. For cases such as this it is
- * recommended that clients parse using the method
- * parse(const UnicodeString&, Calendar& cal, ParsePosition&)
- * with the Calendar passed in set to the current date, or to a date
- * within the era/cycle that should be assumed if absent in the format.
- *
- * @param text The date/time string to be parsed into a UDate value.
- * @param pos On input, the position at which to start parsing; on
- * output, the position at which parsing terminated, or the
- * start position if the parse failed.
- * @return A valid UDate if the input could be parsed.
- * @stable ICU 2.0
- */
- UDate parse( const UnicodeString& text,
- ParsePosition& pos) const;
-
- /**
- * Parse a string to produce an object. This methods handles parsing of
- * date/time strings into Formattable objects with UDate types.
- * <P>
- * Before calling, set parse_pos.index to the offset you want to start
- * parsing at in the source. After calling, parse_pos.index is the end of
- * the text you parsed. If error occurs, index is unchanged.
- * <P>
- * When parsing, leading whitespace is discarded (with a successful parse),
- * while trailing whitespace is left as is.
- * <P>
- * See Format::parseObject() for more.
- *
- * @param source The string to be parsed into an object.
- * @param result Formattable to be set to the parse result.
- * If parse fails, return contents are undefined.
- * @param parse_pos The position to start parsing at. Upon return
- * this param is set to the position after the
- * last character successfully parsed. If the
- * source is not parsed successfully, this param
- * will remain unchanged.
- * @stable ICU 2.0
- */
- virtual void parseObject(const UnicodeString& source,
- Formattable& result,
- ParsePosition& parse_pos) const;
-
- /**
- * Create a default date/time formatter that uses the SHORT style for both
- * the date and the time.
- *
- * @return A date/time formatter which the caller owns.
- * @stable ICU 2.0
- */
- static DateFormat* U_EXPORT2 createInstance(void);
-
- /**
- * Creates a time formatter with the given formatting style for the given
- * locale.
- *
- * @param style The given formatting style. For example,
- * SHORT for "h:mm a" in the US locale. Relative
- * time styles are not currently supported.
- * @param aLocale The given locale.
- * @return A time formatter which the caller owns.
- * @stable ICU 2.0
- */
- static DateFormat* U_EXPORT2 createTimeInstance(EStyle style = kDefault,
- const Locale& aLocale = Locale::getDefault());
-
- /**
- * Creates a date formatter with the given formatting style for the given
- * const locale.
- *
- * @param style The given formatting style. For example, SHORT for "M/d/yy" in the
- * US locale. As currently implemented, relative date formatting only
- * affects a limited range of calendar days before or after the
- * current date, based on the CLDR &lt;field type="day"&gt;/&lt;relative&gt; data:
- * For example, in English, "Yesterday", "Today", and "Tomorrow".
- * Outside of this range, dates are formatted using the corresponding
- * non-relative style.
- * @param aLocale The given locale.
- * @return A date formatter which the caller owns.
- * @stable ICU 2.0
- */
- static DateFormat* U_EXPORT2 createDateInstance(EStyle style = kDefault,
- const Locale& aLocale = Locale::getDefault());
-
- /**
- * Creates a date/time formatter with the given formatting styles for the
- * given locale.
- *
- * @param dateStyle The given formatting style for the date portion of the result.
- * For example, SHORT for "M/d/yy" in the US locale. As currently
- * implemented, relative date formatting only affects a limited range
- * of calendar days before or after the current date, based on the
- * CLDR &lt;field type="day"&gt;/&lt;relative&gt; data: For example, in English,
- * "Yesterday", "Today", and "Tomorrow". Outside of this range, dates
- * are formatted using the corresponding non-relative style.
- * @param timeStyle The given formatting style for the time portion of the result.
- * For example, SHORT for "h:mm a" in the US locale. Relative
- * time styles are not currently supported.
- * @param aLocale The given locale.
- * @return A date/time formatter which the caller owns.
- * @stable ICU 2.0
- */
- static DateFormat* U_EXPORT2 createDateTimeInstance(EStyle dateStyle = kDefault,
- EStyle timeStyle = kDefault,
- const Locale& aLocale = Locale::getDefault());
-
-#ifndef U_HIDE_INTERNAL_API
- /**
- * Returns the best pattern given a skeleton and locale.
- * @param locale the locale
- * @param skeleton the skeleton
- * @param status ICU error returned here
- * @return the best pattern.
- * @internal For ICU use only.
- */
- static UnicodeString getBestPattern(
- const Locale &locale,
- const UnicodeString &skeleton,
- UErrorCode &status);
-#endif /* U_HIDE_INTERNAL_API */
-
- /**
- * Creates a date/time formatter for the given skeleton and
- * default locale.
- *
- * @param skeleton The skeleton e.g "yMMMMd." Fields in the skeleton can
- * be in any order, and this method uses the locale to
- * map the skeleton to a pattern that includes locale
- * specific separators with the fields in the appropriate
- * order for that locale.
- * @param status Any error returned here.
- * @return A date/time formatter which the caller owns.
- * @stable ICU 55
- */
- static DateFormat* U_EXPORT2 createInstanceForSkeleton(
- const UnicodeString& skeleton,
- UErrorCode &status);
-
- /**
- * Creates a date/time formatter for the given skeleton and locale.
- *
- * @param skeleton The skeleton e.g "yMMMMd." Fields in the skeleton can
- * be in any order, and this method uses the locale to
- * map the skeleton to a pattern that includes locale
- * specific separators with the fields in the appropriate
- * order for that locale.
- * @param locale The given locale.
- * @param status Any error returned here.
- * @return A date/time formatter which the caller owns.
- * @stable ICU 55
- */
- static DateFormat* U_EXPORT2 createInstanceForSkeleton(
- const UnicodeString& skeleton,
- const Locale &locale,
- UErrorCode &status);
-
- /**
- * Creates a date/time formatter for the given skeleton and locale.
- *
- * @param calendarToAdopt the calendar returned DateFormat is to use.
- * @param skeleton The skeleton e.g "yMMMMd." Fields in the skeleton can
- * be in any order, and this method uses the locale to
- * map the skeleton to a pattern that includes locale
- * specific separators with the fields in the appropriate
- * order for that locale.
- * @param locale The given locale.
- * @param status Any error returned here.
- * @return A date/time formatter which the caller owns.
- * @stable ICU 55
- */
- static DateFormat* U_EXPORT2 createInstanceForSkeleton(
- Calendar *calendarToAdopt,
- const UnicodeString& skeleton,
- const Locale &locale,
- UErrorCode &status);
-
-
- /**
- * Gets the set of locales for which DateFormats are installed.
- * @param count Filled in with the number of locales in the list that is returned.
- * @return the set of locales for which DateFormats are installed. The caller
- * does NOT own this list and must not delete it.
- * @stable ICU 2.0
- */
- static const Locale* U_EXPORT2 getAvailableLocales(int32_t& count);
-
- /**
- * Returns whether both date/time parsing in the encapsulated Calendar object and DateFormat whitespace &
- * numeric processing is lenient.
- * @stable ICU 2.0
- */
- virtual UBool isLenient(void) const;
-
- /**
- * Specifies whether date/time parsing is to be lenient. With
- * lenient parsing, the parser may use heuristics to interpret inputs that
- * do not precisely match this object's format. Without lenient parsing,
- * inputs must match this object's format more closely.
- *
- * Note: ICU 53 introduced finer grained control of leniency (and added
- * new control points) making the preferred method a combination of
- * setCalendarLenient() & setBooleanAttribute() calls.
- * This method supports prior functionality but may not support all
- * future leniency control & behavior of DateFormat. For control of pre 53 leniency,
- * Calendar and DateFormat whitespace & numeric tolerance, this method is safe to
- * use. However, mixing leniency control via this method and modification of the
- * newer attributes via setBooleanAttribute() may produce undesirable
- * results.
- *
- * @param lenient True specifies date/time interpretation to be lenient.
- * @see Calendar::setLenient
- * @stable ICU 2.0
- */
- virtual void setLenient(UBool lenient);
-
-
- /**
- * Returns whether date/time parsing in the encapsulated Calendar object processing is lenient.
- * @stable ICU 53
- */
- virtual UBool isCalendarLenient(void) const;
-
-
- /**
- * Specifies whether encapsulated Calendar date/time parsing is to be lenient. With
- * lenient parsing, the parser may use heuristics to interpret inputs that
- * do not precisely match this object's format. Without lenient parsing,
- * inputs must match this object's format more closely.
- * @param lenient when true, parsing is lenient
- * @see com.ibm.icu.util.Calendar#setLenient
- * @stable ICU 53
- */
- virtual void setCalendarLenient(UBool lenient);
-
-
- /**
- * Gets the calendar associated with this date/time formatter.
- * The calendar is owned by the formatter and must not be modified.
- * Also, the calendar does not reflect the results of a parse operation.
- * To parse to a calendar, use {@link #parse(const UnicodeString&, Calendar& cal, ParsePosition&) const parse(const UnicodeString&, Calendar& cal, ParsePosition&)}
- * @return the calendar associated with this date/time formatter.
- * @stable ICU 2.0
- */
- virtual const Calendar* getCalendar(void) const;
-
- /**
- * Set the calendar to be used by this date format. Initially, the default
- * calendar for the specified or default locale is used. The caller should
- * not delete the Calendar object after it is adopted by this call.
- * Adopting a new calendar will change to the default symbols.
- *
- * @param calendarToAdopt Calendar object to be adopted.
- * @stable ICU 2.0
- */
- virtual void adoptCalendar(Calendar* calendarToAdopt);
-
- /**
- * Set the calendar to be used by this date format. Initially, the default
- * calendar for the specified or default locale is used.
- *
- * @param newCalendar Calendar object to be set.
- * @stable ICU 2.0
- */
- virtual void setCalendar(const Calendar& newCalendar);
-
-
- /**
- * Gets the number formatter which this date/time formatter uses to format
- * and parse the numeric portions of the pattern.
- * @return the number formatter which this date/time formatter uses.
- * @stable ICU 2.0
- */
- virtual const NumberFormat* getNumberFormat(void) const;
-
- /**
- * Allows you to set the number formatter. The caller should
- * not delete the NumberFormat object after it is adopted by this call.
- * @param formatToAdopt NumberFormat object to be adopted.
- * @stable ICU 2.0
- */
- virtual void adoptNumberFormat(NumberFormat* formatToAdopt);
-
- /**
- * Allows you to set the number formatter.
- * @param newNumberFormat NumberFormat object to be set.
- * @stable ICU 2.0
- */
- virtual void setNumberFormat(const NumberFormat& newNumberFormat);
-
- /**
- * Returns a reference to the TimeZone used by this DateFormat's calendar.
- * @return the time zone associated with the calendar of DateFormat.
- * @stable ICU 2.0
- */
- virtual const TimeZone& getTimeZone(void) const;
-
- /**
- * Sets the time zone for the calendar of this DateFormat object. The caller
- * no longer owns the TimeZone object and should not delete it after this call.
- * @param zoneToAdopt the TimeZone to be adopted.
- * @stable ICU 2.0
- */
- virtual void adoptTimeZone(TimeZone* zoneToAdopt);
-
- /**
- * Sets the time zone for the calendar of this DateFormat object.
- * @param zone the new time zone.
- * @stable ICU 2.0
- */
- virtual void setTimeZone(const TimeZone& zone);
-
- /**
- * Set a particular UDisplayContext value in the formatter, such as
- * UDISPCTX_CAPITALIZATION_FOR_STANDALONE.
- * @param value The UDisplayContext value to set.
- * @param status Input/output status. If at entry this indicates a failure
- * status, the function will do nothing; otherwise this will be
- * updated with any new status from the function.
- * @stable ICU 53
- */
- virtual void setContext(UDisplayContext value, UErrorCode& status);
-
- /**
- * Get the formatter's UDisplayContext value for the specified UDisplayContextType,
- * such as UDISPCTX_TYPE_CAPITALIZATION.
- * @param type The UDisplayContextType whose value to return
- * @param status Input/output status. If at entry this indicates a failure
- * status, the function will do nothing; otherwise this will be
- * updated with any new status from the function.
- * @return The UDisplayContextValue for the specified type.
- * @stable ICU 53
- */
- virtual UDisplayContext getContext(UDisplayContextType type, UErrorCode& status) const;
-
- /**
- * Sets an boolean attribute on this DateFormat.
- * May return U_UNSUPPORTED_ERROR if this instance does not support
- * the specified attribute.
- * @param attr the attribute to set
- * @param newvalue new value
- * @param status the error type
- * @return *this - for chaining (example: format.setAttribute(...).setAttribute(...) )
- * @stable ICU 53
- */
-
- virtual DateFormat& U_EXPORT2 setBooleanAttribute(UDateFormatBooleanAttribute attr,
- UBool newvalue,
- UErrorCode &status);
-
- /**
- * Returns a boolean from this DateFormat
- * May return U_UNSUPPORTED_ERROR if this instance does not support
- * the specified attribute.
- * @param attr the attribute to set
- * @param status the error type
- * @return the attribute value. Undefined if there is an error.
- * @stable ICU 53
- */
- virtual UBool U_EXPORT2 getBooleanAttribute(UDateFormatBooleanAttribute attr, UErrorCode &status) const;
-
-protected:
- /**
- * Default constructor. Creates a DateFormat with no Calendar or NumberFormat
- * associated with it. This constructor depends on the subclasses to fill in
- * the calendar and numberFormat fields.
- * @stable ICU 2.0
- */
- DateFormat();
-
- /**
- * Copy constructor.
- * @stable ICU 2.0
- */
- DateFormat(const DateFormat&);
-
- /**
- * Default assignment operator.
- * @stable ICU 2.0
- */
- DateFormat& operator=(const DateFormat&);
-
- /**
- * The calendar that DateFormat uses to produce the time field values needed
- * to implement date/time formatting. Subclasses should generally initialize
- * this to the default calendar for the locale associated with this DateFormat.
- * @stable ICU 2.4
- */
- Calendar* fCalendar;
-
- /**
- * The number formatter that DateFormat uses to format numbers in dates and
- * times. Subclasses should generally initialize this to the default number
- * format for the locale associated with this DateFormat.
- * @stable ICU 2.4
- */
- NumberFormat* fNumberFormat;
-
-
-private:
-
- /**
- * Gets the date/time formatter with the given formatting styles for the
- * given locale.
- * @param dateStyle the given date formatting style.
- * @param timeStyle the given time formatting style.
- * @param inLocale the given locale.
- * @return a date/time formatter, or 0 on failure.
- */
- static DateFormat* U_EXPORT2 create(EStyle timeStyle, EStyle dateStyle, const Locale& inLocale);
-
-
- /**
- * enum set of active boolean attributes for this instance
- */
- EnumSet<UDateFormatBooleanAttribute, 0, UDAT_BOOLEAN_ATTRIBUTE_COUNT> fBoolFlags;
-
-
- UDisplayContext fCapitalizationContext;
- friend class DateFmtKeyByStyle;
-
-public:
-#ifndef U_HIDE_OBSOLETE_API
- /**
- * Field selector for FieldPosition for DateFormat fields.
- * @obsolete ICU 3.4 use UDateFormatField instead, since this API will be
- * removed in that release
- */
- enum EField
- {
- // Obsolete; use UDateFormatField instead
- kEraField = UDAT_ERA_FIELD,
- kYearField = UDAT_YEAR_FIELD,
- kMonthField = UDAT_MONTH_FIELD,
- kDateField = UDAT_DATE_FIELD,
- kHourOfDay1Field = UDAT_HOUR_OF_DAY1_FIELD,
- kHourOfDay0Field = UDAT_HOUR_OF_DAY0_FIELD,
- kMinuteField = UDAT_MINUTE_FIELD,
- kSecondField = UDAT_SECOND_FIELD,
- kMillisecondField = UDAT_FRACTIONAL_SECOND_FIELD,
- kDayOfWeekField = UDAT_DAY_OF_WEEK_FIELD,
- kDayOfYearField = UDAT_DAY_OF_YEAR_FIELD,
- kDayOfWeekInMonthField = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
- kWeekOfYearField = UDAT_WEEK_OF_YEAR_FIELD,
- kWeekOfMonthField = UDAT_WEEK_OF_MONTH_FIELD,
- kAmPmField = UDAT_AM_PM_FIELD,
- kHour1Field = UDAT_HOUR1_FIELD,
- kHour0Field = UDAT_HOUR0_FIELD,
- kTimezoneField = UDAT_TIMEZONE_FIELD,
- kYearWOYField = UDAT_YEAR_WOY_FIELD,
- kDOWLocalField = UDAT_DOW_LOCAL_FIELD,
- kExtendedYearField = UDAT_EXTENDED_YEAR_FIELD,
- kJulianDayField = UDAT_JULIAN_DAY_FIELD,
- kMillisecondsInDayField = UDAT_MILLISECONDS_IN_DAY_FIELD,
-
- // Obsolete; use UDateFormatField instead
- ERA_FIELD = UDAT_ERA_FIELD,
- YEAR_FIELD = UDAT_YEAR_FIELD,
- MONTH_FIELD = UDAT_MONTH_FIELD,
- DATE_FIELD = UDAT_DATE_FIELD,
- HOUR_OF_DAY1_FIELD = UDAT_HOUR_OF_DAY1_FIELD,
- HOUR_OF_DAY0_FIELD = UDAT_HOUR_OF_DAY0_FIELD,
- MINUTE_FIELD = UDAT_MINUTE_FIELD,
- SECOND_FIELD = UDAT_SECOND_FIELD,
- MILLISECOND_FIELD = UDAT_FRACTIONAL_SECOND_FIELD,
- DAY_OF_WEEK_FIELD = UDAT_DAY_OF_WEEK_FIELD,
- DAY_OF_YEAR_FIELD = UDAT_DAY_OF_YEAR_FIELD,
- DAY_OF_WEEK_IN_MONTH_FIELD = UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
- WEEK_OF_YEAR_FIELD = UDAT_WEEK_OF_YEAR_FIELD,
- WEEK_OF_MONTH_FIELD = UDAT_WEEK_OF_MONTH_FIELD,
- AM_PM_FIELD = UDAT_AM_PM_FIELD,
- HOUR1_FIELD = UDAT_HOUR1_FIELD,
- HOUR0_FIELD = UDAT_HOUR0_FIELD,
- TIMEZONE_FIELD = UDAT_TIMEZONE_FIELD
- };
-#endif /* U_HIDE_OBSOLETE_API */
-};
-
-U_NAMESPACE_END
-
-#endif /* #if !UCONFIG_NO_FORMATTING */
-
-#endif // _DATEFMT
-//eof