1103 lines
43 KiB
C++
1103 lines
43 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2011-2015, 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 __TZFMT_H
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#define __TZFMT_H
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/**
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* \file
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* \brief C++ API: TimeZoneFormat
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*/
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#include "unicode/utypes.h"
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#if U_SHOW_CPLUSPLUS_API
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/format.h"
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#include "unicode/timezone.h"
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#include "unicode/tznames.h"
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U_CDECL_BEGIN
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/**
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* Constants for time zone display format style used by format/parse APIs
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* in TimeZoneFormat.
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* @stable ICU 50
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*/
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typedef enum UTimeZoneFormatStyle {
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/**
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* Generic location format, such as "United States Time (New York)", "Italy Time"
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* @stable ICU 50
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*/
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UTZFMT_STYLE_GENERIC_LOCATION,
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/**
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* Generic long non-location format, such as "Eastern Time".
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* @stable ICU 50
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*/
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UTZFMT_STYLE_GENERIC_LONG,
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/**
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* Generic short non-location format, such as "ET".
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* @stable ICU 50
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*/
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UTZFMT_STYLE_GENERIC_SHORT,
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/**
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* Specific long format, such as "Eastern Standard Time".
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* @stable ICU 50
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*/
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UTZFMT_STYLE_SPECIFIC_LONG,
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/**
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* Specific short format, such as "EST", "PDT".
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* @stable ICU 50
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*/
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UTZFMT_STYLE_SPECIFIC_SHORT,
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/**
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* Localized GMT offset format, such as "GMT-05:00", "UTC+0100"
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* @stable ICU 50
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*/
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UTZFMT_STYLE_LOCALIZED_GMT,
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/**
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* Short localized GMT offset format, such as "GMT-5", "UTC+1:30"
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* This style is equivalent to the LDML date format pattern "O".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_LOCALIZED_GMT_SHORT,
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/**
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* Short ISO 8601 local time difference (basic format) or the UTC indicator.
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* For example, "-05", "+0530", and "Z"(UTC).
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* This style is equivalent to the LDML date format pattern "X".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_SHORT,
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/**
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* Short ISO 8601 locale time difference (basic format).
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* For example, "-05" and "+0530".
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* This style is equivalent to the LDML date format pattern "x".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_LOCAL_SHORT,
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/**
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* Fixed width ISO 8601 local time difference (basic format) or the UTC indicator.
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* For example, "-0500", "+0530", and "Z"(UTC).
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* This style is equivalent to the LDML date format pattern "XX".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_FIXED,
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/**
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* Fixed width ISO 8601 local time difference (basic format).
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* For example, "-0500" and "+0530".
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* This style is equivalent to the LDML date format pattern "xx".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_LOCAL_FIXED,
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/**
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* ISO 8601 local time difference (basic format) with optional seconds field, or the UTC indicator.
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* For example, "-0500", "+052538", and "Z"(UTC).
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* This style is equivalent to the LDML date format pattern "XXXX".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_FULL,
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/**
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* ISO 8601 local time difference (basic format) with optional seconds field.
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* For example, "-0500" and "+052538".
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* This style is equivalent to the LDML date format pattern "xxxx".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_BASIC_LOCAL_FULL,
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/**
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* Fixed width ISO 8601 local time difference (extended format) or the UTC indicator.
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* For example, "-05:00", "+05:30", and "Z"(UTC).
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* This style is equivalent to the LDML date format pattern "XXX".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_EXTENDED_FIXED,
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/**
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* Fixed width ISO 8601 local time difference (extended format).
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* For example, "-05:00" and "+05:30".
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* This style is equivalent to the LDML date format pattern "xxx" and "ZZZZZ".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_EXTENDED_LOCAL_FIXED,
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/**
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* ISO 8601 local time difference (extended format) with optional seconds field, or the UTC indicator.
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* For example, "-05:00", "+05:25:38", and "Z"(UTC).
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* This style is equivalent to the LDML date format pattern "XXXXX".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_EXTENDED_FULL,
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/**
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* ISO 8601 local time difference (extended format) with optional seconds field.
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* For example, "-05:00" and "+05:25:38".
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* This style is equivalent to the LDML date format pattern "xxxxx".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ISO_EXTENDED_LOCAL_FULL,
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/**
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* Time Zone ID, such as "America/Los_Angeles".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ZONE_ID,
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/**
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* Short Time Zone ID (BCP 47 Unicode location extension, time zone type value), such as "uslax".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_ZONE_ID_SHORT,
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/**
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* Exemplar location, such as "Los Angeles" and "Paris".
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* @stable ICU 51
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*/
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UTZFMT_STYLE_EXEMPLAR_LOCATION
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} UTimeZoneFormatStyle;
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/**
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* Constants for GMT offset pattern types.
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* @stable ICU 50
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*/
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typedef enum UTimeZoneFormatGMTOffsetPatternType {
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/**
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* Positive offset with hours and minutes fields
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* @stable ICU 50
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*/
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UTZFMT_PAT_POSITIVE_HM,
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/**
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* Positive offset with hours, minutes and seconds fields
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* @stable ICU 50
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*/
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UTZFMT_PAT_POSITIVE_HMS,
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/**
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* Negative offset with hours and minutes fields
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* @stable ICU 50
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*/
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UTZFMT_PAT_NEGATIVE_HM,
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/**
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* Negative offset with hours, minutes and seconds fields
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* @stable ICU 50
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*/
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UTZFMT_PAT_NEGATIVE_HMS,
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/**
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* Positive offset with hours field
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* @stable ICU 51
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*/
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UTZFMT_PAT_POSITIVE_H,
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/**
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* Negative offset with hours field
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* @stable ICU 51
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*/
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UTZFMT_PAT_NEGATIVE_H,
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/* The following cannot be #ifndef U_HIDE_INTERNAL_API, needed for other .h declarations */
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/**
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* Number of UTimeZoneFormatGMTOffsetPatternType types.
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* @internal
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*/
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UTZFMT_PAT_COUNT = 6
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} UTimeZoneFormatGMTOffsetPatternType;
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/**
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* Constants for time types used by TimeZoneFormat APIs for
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* receiving time type (standard time, daylight time or unknown).
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* @stable ICU 50
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*/
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typedef enum UTimeZoneFormatTimeType {
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/**
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* Unknown
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* @stable ICU 50
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*/
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UTZFMT_TIME_TYPE_UNKNOWN,
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/**
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* Standard time
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* @stable ICU 50
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*/
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UTZFMT_TIME_TYPE_STANDARD,
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/**
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* Daylight saving time
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* @stable ICU 50
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*/
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UTZFMT_TIME_TYPE_DAYLIGHT
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} UTimeZoneFormatTimeType;
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/**
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* Constants for parse option flags, used for specifying optional parse behavior.
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* @stable ICU 50
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*/
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typedef enum UTimeZoneFormatParseOption {
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/**
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* No option.
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* @stable ICU 50
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*/
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UTZFMT_PARSE_OPTION_NONE = 0x00,
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/**
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* When a time zone display name is not found within a set of display names
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* used for the specified style, look for the name from display names used
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* by other styles.
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* @stable ICU 50
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*/
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UTZFMT_PARSE_OPTION_ALL_STYLES = 0x01,
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/**
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* When parsing a time zone display name in \link UTZFMT_STYLE_SPECIFIC_SHORT \endlink,
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* look for the IANA tz database compatible zone abbreviations in addition
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* to the localized names coming from the icu::TimeZoneNames currently
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* used by the icu::TimeZoneFormat.
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* @stable ICU 54
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*/
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UTZFMT_PARSE_OPTION_TZ_DATABASE_ABBREVIATIONS = 0x02
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} UTimeZoneFormatParseOption;
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U_CDECL_END
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U_NAMESPACE_BEGIN
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class TimeZoneGenericNames;
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class TZDBTimeZoneNames;
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class UVector;
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/**
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* <code>TimeZoneFormat</code> supports time zone display name formatting and parsing.
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* An instance of TimeZoneFormat works as a subformatter of {@link SimpleDateFormat},
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* but you can also directly get a new instance of <code>TimeZoneFormat</code> and
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* formatting/parsing time zone display names.
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* <p>
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* ICU implements the time zone display names defined by <a href="http://www.unicode.org/reports/tr35/">UTS#35
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* Unicode Locale Data Markup Language (LDML)</a>. {@link TimeZoneNames} represents the
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* time zone display name data model and this class implements the algorithm for actual
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* formatting and parsing.
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*
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* @see SimpleDateFormat
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* @see TimeZoneNames
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* @stable ICU 50
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*/
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class U_I18N_API TimeZoneFormat : public Format {
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public:
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/**
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* Copy constructor.
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* @stable ICU 50
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*/
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TimeZoneFormat(const TimeZoneFormat& other);
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/**
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* Destructor.
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* @stable ICU 50
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*/
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virtual ~TimeZoneFormat();
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/**
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* Assignment operator.
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* @stable ICU 50
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*/
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TimeZoneFormat& operator=(const TimeZoneFormat& other);
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/**
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* Return true if the given Format objects are semantically equal.
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* Objects of different subclasses are considered unequal.
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* @param other The object to be compared with.
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* @return Return TRUE if the given Format objects are semantically equal.
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* Objects of different subclasses are considered unequal.
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* @stable ICU 50
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*/
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virtual UBool operator==(const Format& other) const;
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/**
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* Clone this object polymorphically. The caller is responsible
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* for deleting the result when done.
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* @return A copy of the object
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* @stable ICU 50
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*/
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virtual TimeZoneFormat* clone() const;
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/**
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* Creates an instance of <code>TimeZoneFormat</code> for the given locale.
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* @param locale The locale.
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* @param status Receives the status.
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* @return An instance of <code>TimeZoneFormat</code> for the given locale,
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* owned by the caller.
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* @stable ICU 50
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*/
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static TimeZoneFormat* U_EXPORT2 createInstance(const Locale& locale, UErrorCode& status);
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/**
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* Returns the time zone display name data used by this instance.
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* @return The time zone display name data.
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* @stable ICU 50
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*/
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const TimeZoneNames* getTimeZoneNames() const;
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/**
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* Sets the time zone display name data to this format instnace.
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* The caller should not delete the TimeZoenNames object after it is adopted
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* by this call.
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* @param tznames TimeZoneNames object to be adopted.
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* @stable ICU 50
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*/
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void adoptTimeZoneNames(TimeZoneNames *tznames);
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/**
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* Sets the time zone display name data to this format instnace.
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* @param tznames TimeZoneNames object to be set.
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* @stable ICU 50
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*/
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void setTimeZoneNames(const TimeZoneNames &tznames);
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/**
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* Returns the localized GMT format pattern.
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* @param pattern Receives the localized GMT format pattern.
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* @return A reference to the result pattern.
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* @see #setGMTPattern
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* @stable ICU 50
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*/
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UnicodeString& getGMTPattern(UnicodeString& pattern) const;
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/**
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* Sets the localized GMT format pattern. The pattern must contain
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* a single argument {0}, for example "GMT {0}".
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* @param pattern The localized GMT format pattern to be used by this object.
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* @param status Recieves the status.
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* @see #getGMTPattern
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* @stable ICU 50
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*/
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void setGMTPattern(const UnicodeString& pattern, UErrorCode& status);
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/**
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* Returns the offset pattern used for localized GMT format.
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* @param type The offset pattern type enum.
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* @param pattern Receives the offset pattern.
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* @return A reference to the result pattern.
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* @see #setGMTOffsetPattern
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* @stable ICU 50
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*/
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UnicodeString& getGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, UnicodeString& pattern) const;
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/**
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* Sets the offset pattern for the given offset type.
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* @param type The offset pattern type enum.
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* @param pattern The offset pattern used for localized GMT format for the type.
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* @param status Receives the status.
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* @see #getGMTOffsetPattern
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* @stable ICU 50
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*/
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void setGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, const UnicodeString& pattern, UErrorCode& status);
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/**
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* Returns the decimal digit characters used for localized GMT format.
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* The return string contains exactly 10 code points (may include Unicode
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* supplementary character) representing digit 0 to digit 9 in the ascending
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* order.
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* @param digits Receives the decimal digits used for localized GMT format.
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* @see #setGMTOffsetDigits
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* @stable ICU 50
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*/
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UnicodeString& getGMTOffsetDigits(UnicodeString& digits) const;
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/**
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* Sets the decimal digit characters used for localized GMT format.
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* The input <code>digits</code> must contain exactly 10 code points
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* (Unicode supplementary characters are also allowed) representing
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* digit 0 to digit 9 in the ascending order. When the input <code>digits</code>
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* does not satisfy the condition, <code>U_ILLEGAL_ARGUMENT_ERROR</code>
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* will be set to the return status.
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* @param digits The decimal digits used for localized GMT format.
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* @param status Receives the status.
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* @see #getGMTOffsetDigits
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* @stable ICU 50
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*/
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void setGMTOffsetDigits(const UnicodeString& digits, UErrorCode& status);
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/**
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* Returns the localized GMT format string for GMT(UTC) itself (GMT offset is 0).
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* @param gmtZeroFormat Receives the localized GMT string string for GMT(UTC) itself.
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* @return A reference to the result GMT string.
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* @see #setGMTZeroFormat
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* @stable ICU 50
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*/
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UnicodeString& getGMTZeroFormat(UnicodeString& gmtZeroFormat) const;
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/**
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* Sets the localized GMT format string for GMT(UTC) itself (GMT offset is 0).
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* @param gmtZeroFormat The localized GMT format string for GMT(UTC).
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* @param status Receives the status.
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* @see #getGMTZeroFormat
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* @stable ICU 50
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*/
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void setGMTZeroFormat(const UnicodeString& gmtZeroFormat, UErrorCode& status);
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/**
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* Returns the bitwise flags of UTimeZoneFormatParseOption representing the default parse
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* options used by this object.
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* @return the default parse options.
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* @see ParseOption
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* @stable ICU 50
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*/
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uint32_t getDefaultParseOptions(void) const;
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/**
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* Sets the default parse options.
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* <p><b>Note</b>: By default, an instance of <code>TimeZoneFormat</code>
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* created by {@link #createInstance} has no parse options set (UTZFMT_PARSE_OPTION_NONE).
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* To specify multipe options, use bitwise flags of UTimeZoneFormatParseOption.
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* @see #UTimeZoneFormatParseOption
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* @stable ICU 50
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*/
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void setDefaultParseOptions(uint32_t flags);
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/**
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* Returns the ISO 8601 basic time zone string for the given offset.
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* For example, "-08", "-0830" and "Z"
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*
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* @param offset the offset from GMT(UTC) in milliseconds.
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* @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
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* @param isShort true if shortest form is used.
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* @param ignoreSeconds true if non-zero offset seconds is appended.
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* @param result Receives the ISO format string.
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* @param status Receives the status
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* @return the ISO 8601 basic format.
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* @see #formatOffsetISO8601Extended
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* @see #parseOffsetISO8601
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* @stable ICU 51
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*/
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UnicodeString& formatOffsetISO8601Basic(int32_t offset, UBool useUtcIndicator, UBool isShort, UBool ignoreSeconds,
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UnicodeString& result, UErrorCode& status) const;
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/**
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* Returns the ISO 8601 extended time zone string for the given offset.
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* For example, "-08:00", "-08:30" and "Z"
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*
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* @param offset the offset from GMT(UTC) in milliseconds.
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* @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
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* @param isShort true if shortest form is used.
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* @param ignoreSeconds true if non-zero offset seconds is appended.
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* @param result Receives the ISO format string.
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* @param status Receives the status
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* @return the ISO 8601 basic format.
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* @see #formatOffsetISO8601Extended
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* @see #parseOffsetISO8601
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* @stable ICU 51
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*/
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UnicodeString& formatOffsetISO8601Extended(int32_t offset, UBool useUtcIndicator, UBool isShort, UBool ignoreSeconds,
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UnicodeString& result, UErrorCode& status) const;
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/**
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* Returns the localized GMT(UTC) offset format for the given offset.
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* The localized GMT offset is defined by;
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* <ul>
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* <li>GMT format pattern (e.g. "GMT {0}" - see {@link #getGMTPattern})
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* <li>Offset time pattern (e.g. "+HH:mm" - see {@link #getGMTOffsetPattern})
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* <li>Offset digits (e.g. "0123456789" - see {@link #getGMTOffsetDigits})
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* <li>GMT zero format (e.g. "GMT" - see {@link #getGMTZeroFormat})
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* </ul>
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* This format always uses 2 digit hours and minutes. When the given offset has non-zero
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* seconds, 2 digit seconds field will be appended. For example,
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* GMT+05:00 and GMT+05:28:06.
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* @param offset the offset from GMT(UTC) in milliseconds.
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* @param status Receives the status
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* @param result Receives the localized GMT format string.
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* @return A reference to the result.
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* @see #parseOffsetLocalizedGMT
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* @stable ICU 50
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*/
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UnicodeString& formatOffsetLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const;
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/**
|
|
* Returns the short localized GMT(UTC) offset format for the given offset.
|
|
* The short localized GMT offset is defined by;
|
|
* <ul>
|
|
* <li>GMT format pattern (e.g. "GMT {0}" - see {@link #getGMTPattern})
|
|
* <li>Offset time pattern (e.g. "+HH:mm" - see {@link #getGMTOffsetPattern})
|
|
* <li>Offset digits (e.g. "0123456789" - see {@link #getGMTOffsetDigits})
|
|
* <li>GMT zero format (e.g. "GMT" - see {@link #getGMTZeroFormat})
|
|
* </ul>
|
|
* This format uses the shortest representation of offset. The hours field does not
|
|
* have leading zero and lower fields with zero will be truncated. For example,
|
|
* GMT+5 and GMT+530.
|
|
* @param offset the offset from GMT(UTC) in milliseconds.
|
|
* @param status Receives the status
|
|
* @param result Receives the short localized GMT format string.
|
|
* @return A reference to the result.
|
|
* @see #parseOffsetShortLocalizedGMT
|
|
* @stable ICU 51
|
|
*/
|
|
UnicodeString& formatOffsetShortLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const;
|
|
|
|
using Format::format;
|
|
|
|
/**
|
|
* Returns the display name of the time zone at the given date for the style.
|
|
* @param style The style (e.g. <code>UTZFMT_STYLE_GENERIC_LONG</code>, <code>UTZFMT_STYLE_LOCALIZED_GMT</code>...)
|
|
* @param tz The time zone.
|
|
* @param date The date.
|
|
* @param name Receives the display name.
|
|
* @param timeType the output argument for receiving the time type (standard/daylight/unknown)
|
|
* used for the display name, or NULL if the information is not necessary.
|
|
* @return A reference to the result
|
|
* @see #UTimeZoneFormatStyle
|
|
* @see #UTimeZoneFormatTimeType
|
|
* @stable ICU 50
|
|
*/
|
|
virtual UnicodeString& format(UTimeZoneFormatStyle style, const TimeZone& tz, UDate date,
|
|
UnicodeString& name, UTimeZoneFormatTimeType* timeType = NULL) const;
|
|
|
|
/**
|
|
* Returns offset from GMT(UTC) in milliseconds for the given ISO 8601
|
|
* style time zone string. When the given string is not an ISO 8601 time zone
|
|
* string, this method sets the current position as the error index
|
|
* to <code>ParsePosition pos</code> and returns 0.
|
|
* @param text The text contains ISO8601 style time zone string (e.g. "-08:00", "Z")
|
|
* at the position.
|
|
* @param pos The ParsePosition object.
|
|
* @return The offset from GMT(UTC) in milliseconds for the given ISO 8601 style
|
|
* time zone string.
|
|
* @see #formatOffsetISO8601Basic
|
|
* @see #formatOffsetISO8601Extended
|
|
* @stable ICU 50
|
|
*/
|
|
int32_t parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos) const;
|
|
|
|
/**
|
|
* Returns offset from GMT(UTC) in milliseconds for the given localized GMT
|
|
* offset format string. When the given string cannot be parsed, this method
|
|
* sets the current position as the error index to <code>ParsePosition pos</code>
|
|
* and returns 0.
|
|
* @param text The text contains a localized GMT offset string at the position.
|
|
* @param pos The ParsePosition object.
|
|
* @return The offset from GMT(UTC) in milliseconds for the given localized GMT
|
|
* offset format string.
|
|
* @see #formatOffsetLocalizedGMT
|
|
* @stable ICU 50
|
|
*/
|
|
int32_t parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const;
|
|
|
|
/**
|
|
* Returns offset from GMT(UTC) in milliseconds for the given short localized GMT
|
|
* offset format string. When the given string cannot be parsed, this method
|
|
* sets the current position as the error index to <code>ParsePosition pos</code>
|
|
* and returns 0.
|
|
* @param text The text contains a short localized GMT offset string at the position.
|
|
* @param pos The ParsePosition object.
|
|
* @return The offset from GMT(UTC) in milliseconds for the given short localized GMT
|
|
* offset format string.
|
|
* @see #formatOffsetShortLocalizedGMT
|
|
* @stable ICU 51
|
|
*/
|
|
int32_t parseOffsetShortLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const;
|
|
|
|
/**
|
|
* Returns a <code>TimeZone</code> by parsing the time zone string according to
|
|
* the given parse position, the specified format style and parse options.
|
|
*
|
|
* @param text The text contains a time zone string at the position.
|
|
* @param style The format style
|
|
* @param pos The position.
|
|
* @param parseOptions The parse options repesented by bitwise flags of UTimeZoneFormatParseOption.
|
|
* @param timeType The output argument for receiving the time type (standard/daylight/unknown),
|
|
* or NULL if the information is not necessary.
|
|
* @return A <code>TimeZone</code>, or null if the input could not be parsed.
|
|
* @see UTimeZoneFormatStyle
|
|
* @see UTimeZoneFormatParseOption
|
|
* @see UTimeZoneFormatTimeType
|
|
* @stable ICU 50
|
|
*/
|
|
virtual TimeZone* parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
|
|
int32_t parseOptions, UTimeZoneFormatTimeType* timeType = NULL) const;
|
|
|
|
/**
|
|
* Returns a <code>TimeZone</code> by parsing the time zone string according to
|
|
* the given parse position, the specified format style and the default parse options.
|
|
*
|
|
* @param text The text contains a time zone string at the position.
|
|
* @param style The format style
|
|
* @param pos The position.
|
|
* @param timeType The output argument for receiving the time type (standard/daylight/unknown),
|
|
* or NULL if the information is not necessary.
|
|
* @return A <code>TimeZone</code>, or null if the input could not be parsed.
|
|
* @see UTimeZoneFormatStyle
|
|
* @see UTimeZoneFormatParseOption
|
|
* @see UTimeZoneFormatTimeType
|
|
* @stable ICU 50
|
|
*/
|
|
TimeZone* parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
|
|
UTimeZoneFormatTimeType* timeType = NULL) const;
|
|
|
|
/* ----------------------------------------------
|
|
* Format APIs
|
|
* ---------------------------------------------- */
|
|
|
|
/**
|
|
* Format an object to produce a time zone display string using localized GMT offset format.
|
|
* This method handles Formattable objects with a <code>TimeZone</code>. If a the Formattable
|
|
* object type is not a <code>TimeZone</code>, then it returns a failing UErrorCode.
|
|
* @param obj The object to format. Must be a <code>TimeZone</code>.
|
|
* @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 50
|
|
*/
|
|
virtual UnicodeString& format(const Formattable& obj, UnicodeString& appendTo,
|
|
FieldPosition& pos, UErrorCode& status) const;
|
|
|
|
/**
|
|
* Parse a string to produce an object. This methods handles parsing of
|
|
* time zone display strings into Formattable objects with <code>TimeZone</code>.
|
|
* @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.
|
|
* @return A newly created Formattable* object, or NULL on failure. The caller owns this and should
|
|
* delete it when done.
|
|
* @stable ICU 50
|
|
*/
|
|
virtual void parseObject(const UnicodeString& source, Formattable& result, ParsePosition& parse_pos) const;
|
|
|
|
/**
|
|
* ICU "poor man's RTTI", returns a UClassID for this class.
|
|
* @stable ICU 50
|
|
*/
|
|
static UClassID U_EXPORT2 getStaticClassID(void);
|
|
|
|
/**
|
|
* ICU "poor man's RTTI", returns a UClassID for the actual class.
|
|
* @stable ICU 50
|
|
*/
|
|
virtual UClassID getDynamicClassID() const;
|
|
|
|
protected:
|
|
/**
|
|
* Constructs a TimeZoneFormat object for the specified locale.
|
|
* @param locale the locale
|
|
* @param status receives the status.
|
|
* @stable ICU 50
|
|
*/
|
|
TimeZoneFormat(const Locale& locale, UErrorCode& status);
|
|
|
|
private:
|
|
/* Locale of this object */
|
|
Locale fLocale;
|
|
|
|
/* Stores the region (could be implicit default) */
|
|
char fTargetRegion[ULOC_COUNTRY_CAPACITY];
|
|
|
|
/* TimeZoneNames object used by this formatter */
|
|
TimeZoneNames* fTimeZoneNames;
|
|
|
|
/* TimeZoneGenericNames object used by this formatter - lazily instantiated */
|
|
TimeZoneGenericNames* fTimeZoneGenericNames;
|
|
|
|
/* Localized GMT format pattern - e.g. "GMT{0}" */
|
|
UnicodeString fGMTPattern;
|
|
|
|
/* Array of offset patterns used by Localized GMT format - e.g. "+HH:mm" */
|
|
UnicodeString fGMTOffsetPatterns[UTZFMT_PAT_COUNT];
|
|
|
|
/* Localized decimal digits used by Localized GMT format */
|
|
UChar32 fGMTOffsetDigits[10];
|
|
|
|
/* Localized GMT zero format - e.g. "GMT" */
|
|
UnicodeString fGMTZeroFormat;
|
|
|
|
/* Bit flags representing parse options */
|
|
uint32_t fDefParseOptionFlags;
|
|
|
|
/* Constant parts of GMT format pattern, populated from localized GMT format pattern*/
|
|
UnicodeString fGMTPatternPrefix; /* Substring before {0} */
|
|
UnicodeString fGMTPatternSuffix; /* Substring after {0} */
|
|
|
|
/* Compiled offset patterns generated from fGMTOffsetPatterns[] */
|
|
UVector* fGMTOffsetPatternItems[UTZFMT_PAT_COUNT];
|
|
|
|
UBool fAbuttingOffsetHoursAndMinutes;
|
|
|
|
/* TZDBTimeZoneNames object used for parsing */
|
|
TZDBTimeZoneNames* fTZDBTimeZoneNames;
|
|
|
|
/**
|
|
* Returns the time zone's specific format string.
|
|
* @param tz the time zone
|
|
* @param stdType the name type used for standard time
|
|
* @param dstType the name type used for daylight time
|
|
* @param date the date
|
|
* @param name receives the time zone's specific format name string
|
|
* @param timeType when null, actual time type is set
|
|
* @return a reference to name.
|
|
*/
|
|
UnicodeString& formatSpecific(const TimeZone& tz, UTimeZoneNameType stdType, UTimeZoneNameType dstType,
|
|
UDate date, UnicodeString& name, UTimeZoneFormatTimeType *timeType) const;
|
|
|
|
/**
|
|
* Returns the time zone's generic format string.
|
|
* @param tz the time zone
|
|
* @param genType the generic name type
|
|
* @param date the date
|
|
* @param name receives the time zone's generic format name string
|
|
* @return a reference to name.
|
|
*/
|
|
UnicodeString& formatGeneric(const TimeZone& tz, int32_t genType, UDate date, UnicodeString& name) const;
|
|
|
|
/**
|
|
* Lazily create a TimeZoneGenericNames instance
|
|
* @param status receives the status
|
|
* @return the cached TimeZoneGenericNames.
|
|
*/
|
|
const TimeZoneGenericNames* getTimeZoneGenericNames(UErrorCode& status) const;
|
|
|
|
/**
|
|
* Lazily create a TZDBTimeZoneNames instance
|
|
* @param status receives the status
|
|
* @return the cached TZDBTimeZoneNames.
|
|
*/
|
|
const TZDBTimeZoneNames* getTZDBTimeZoneNames(UErrorCode& status) const;
|
|
|
|
/**
|
|
* Private method returning the time zone's exemplar location string.
|
|
* This method will never return empty.
|
|
* @param tz the time zone
|
|
* @param name receives the time zone's exemplar location name
|
|
* @return a reference to name.
|
|
*/
|
|
UnicodeString& formatExemplarLocation(const TimeZone& tz, UnicodeString& name) const;
|
|
|
|
/**
|
|
* Private enum specifying a combination of offset fields
|
|
*/
|
|
enum OffsetFields {
|
|
FIELDS_H,
|
|
FIELDS_HM,
|
|
FIELDS_HMS
|
|
};
|
|
|
|
/**
|
|
* Parses the localized GMT pattern string and initialize
|
|
* localized gmt pattern fields.
|
|
* @param gmtPattern the localized GMT pattern string such as "GMT {0}"
|
|
* @param status U_ILLEGAL_ARGUMENT_ERROR is set when the specified pattern does not
|
|
* contain an argument "{0}".
|
|
*/
|
|
void initGMTPattern(const UnicodeString& gmtPattern, UErrorCode& status);
|
|
|
|
/**
|
|
* Parse the GMT offset pattern into runtime optimized format.
|
|
* @param pattern the offset pattern string
|
|
* @param required the required set of fields, such as FIELDS_HM
|
|
* @param status U_ILLEGAL_ARGUMENT is set when the specified pattern does not contain
|
|
* pattern letters for the required fields.
|
|
* @return A list of GMTOffsetField objects, or NULL on error.
|
|
*/
|
|
static UVector* parseOffsetPattern(const UnicodeString& pattern, OffsetFields required, UErrorCode& status);
|
|
|
|
/**
|
|
* Appends seconds field to the offset pattern with hour/minute
|
|
* Note: This code will be obsoleted once we add hour-minute-second pattern data in CLDR.
|
|
* @param offsetHM the offset pattern including hours and minutes fields
|
|
* @param result the output offset pattern including hour, minute and seconds fields
|
|
* @param status receives the status
|
|
* @return a reference to result
|
|
*/
|
|
static UnicodeString& expandOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result, UErrorCode& status);
|
|
|
|
/**
|
|
* Truncates minutes field to the offset pattern with hour/minute
|
|
* Note: This code will be obsoleted once we add hour pattern data in CLDR.
|
|
* @param offsetHM the offset pattern including hours and minutes fields
|
|
* @param result the output offset pattern including only hours field
|
|
* @param status receives the status
|
|
* @return a reference to result
|
|
*/
|
|
static UnicodeString& truncateOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result, UErrorCode& status);
|
|
|
|
/**
|
|
* Break input string into UChar32[]. Each array element represents
|
|
* a code point. This method is used for parsing localized digit
|
|
* characters and support characters in Unicode supplemental planes.
|
|
* @param str the string
|
|
* @param codeArray receives the result
|
|
* @param capacity the capacity of codeArray
|
|
* @return TRUE when the specified code array is fully filled with code points
|
|
* (no under/overflow).
|
|
*/
|
|
static UBool toCodePoints(const UnicodeString& str, UChar32* codeArray, int32_t capacity);
|
|
|
|
/**
|
|
* Private method supprting all of ISO8601 formats
|
|
* @param offset the offset from GMT(UTC) in milliseconds.
|
|
* @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
|
|
* @param isShort true if shortest form is used.
|
|
* @param ignoreSeconds true if non-zero offset seconds is appended.
|
|
* @param result Receives the result
|
|
* @param status Receives the status
|
|
* @return the ISO 8601 basic format.
|
|
*/
|
|
UnicodeString& formatOffsetISO8601(int32_t offset, UBool isBasic, UBool useUtcIndicator,
|
|
UBool isShort, UBool ignoreSeconds, UnicodeString& result, UErrorCode& status) const;
|
|
|
|
/**
|
|
* Private method used for localized GMT formatting.
|
|
* @param offset the zone's UTC offset
|
|
* @param isShort true if the short localized GMT format is desired.
|
|
* @param result receives the localized GMT format string
|
|
* @param status receives the status
|
|
*/
|
|
UnicodeString& formatOffsetLocalizedGMT(int32_t offset, UBool isShort, UnicodeString& result, UErrorCode& status) const;
|
|
|
|
/**
|
|
* Returns offset from GMT(UTC) in milliseconds for the given ISO 8601 style
|
|
* (extended format) time zone string. When the given string is not an ISO 8601 time
|
|
* zone string, this method sets the current position as the error index
|
|
* to <code>ParsePosition pos</code> and returns 0.
|
|
* @param text the text contains ISO 8601 style time zone string (e.g. "-08:00", "Z")
|
|
* at the position.
|
|
* @param pos the position, non-negative error index will be set on failure.
|
|
* @param extendedOnly TRUE if parsing the text as ISO 8601 extended offset format (e.g. "-08:00"),
|
|
* or FALSE to evaluate the text as basic format.
|
|
* @param hasDigitOffset receiving if the parsed zone string contains offset digits.
|
|
* @return the offset from GMT(UTC) in milliseconds for the given ISO 8601 style
|
|
* time zone string.
|
|
*/
|
|
int32_t parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos, UBool extendedOnly,
|
|
UBool* hasDigitOffset = NULL) const;
|
|
|
|
/**
|
|
* Appends localized digits to the buffer.
|
|
* This code assumes that the input number is 0 - 59
|
|
* @param buf the target buffer
|
|
* @param n the integer number
|
|
* @param minDigits the minimum digits width
|
|
*/
|
|
void appendOffsetDigits(UnicodeString& buf, int32_t n, uint8_t minDigits) const;
|
|
|
|
/**
|
|
* Returns offset from GMT(UTC) in milliseconds for the given localized GMT
|
|
* offset format string. When the given string cannot be parsed, this method
|
|
* sets the current position as the error index to <code>ParsePosition pos</code>
|
|
* and returns 0.
|
|
* @param text the text contains a localized GMT offset string at the position.
|
|
* @param pos the position, non-negative error index will be set on failure.
|
|
* @param isShort true if this parser to try the short format first
|
|
* @param hasDigitOffset receiving if the parsed zone string contains offset digits.
|
|
* @return the offset from GMT(UTC) in milliseconds for the given localized GMT
|
|
* offset format string.
|
|
*/
|
|
int32_t parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos,
|
|
UBool isShort, UBool* hasDigitOffset) const;
|
|
|
|
/**
|
|
* Parse localized GMT format generated by the patter used by this formatter, except
|
|
* GMT Zero format.
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param isShort true if the short localized format is parsed.
|
|
* @param parsedLen receives the parsed length
|
|
* @return the parsed offset in milliseconds
|
|
*/
|
|
int32_t parseOffsetLocalizedGMTPattern(const UnicodeString& text, int32_t start,
|
|
UBool isShort, int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Parses localized GMT offset fields into offset.
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param isShort true if this is a short format - currently not used
|
|
* @param parsedLen the parsed length, or 0 on failure.
|
|
* @return the parsed offset in milliseconds.
|
|
*/
|
|
int32_t parseOffsetFields(const UnicodeString& text, int32_t start, UBool isShort, int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Parse localized GMT offset fields with the given pattern.
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param pattenItems the pattern (already itemized)
|
|
* @param forceSingleHourDigit true if hours field is parsed as a single digit
|
|
* @param hour receives the hour offset field
|
|
* @param min receives the minute offset field
|
|
* @param sec receives the second offset field
|
|
* @return the parsed length
|
|
*/
|
|
int32_t parseOffsetFieldsWithPattern(const UnicodeString& text, int32_t start,
|
|
UVector* patternItems, UBool forceSingleHourDigit, int32_t& hour, int32_t& min, int32_t& sec) const;
|
|
|
|
/**
|
|
* Parses abutting localized GMT offset fields (such as 0800) into offset.
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param parsedLen the parsed length, or 0 on failure
|
|
* @return the parsed offset in milliseconds.
|
|
*/
|
|
int32_t parseAbuttingOffsetFields(const UnicodeString& text, int32_t start, int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Parses the input text using the default format patterns (e.g. "UTC{0}").
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param parsedLen the parsed length, or 0 on failure
|
|
* @return the parsed offset in milliseconds.
|
|
*/
|
|
int32_t parseOffsetDefaultLocalizedGMT(const UnicodeString& text, int start, int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Parses the input GMT offset fields with the default offset pattern.
|
|
* @param text the input text
|
|
* @param start the start index
|
|
* @param separator the separator character, e.g. ':'
|
|
* @param parsedLen the parsed length, or 0 on failure.
|
|
* @return the parsed offset in milliseconds.
|
|
*/
|
|
int32_t parseDefaultOffsetFields(const UnicodeString& text, int32_t start, char16_t separator,
|
|
int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Reads an offset field value. This method will stop parsing when
|
|
* 1) number of digits reaches <code>maxDigits</code>
|
|
* 2) just before already parsed number exceeds <code>maxVal</code>
|
|
*
|
|
* @param text the text
|
|
* @param start the start offset
|
|
* @param minDigits the minimum number of required digits
|
|
* @param maxDigits the maximum number of digits
|
|
* @param minVal the minimum value
|
|
* @param maxVal the maximum value
|
|
* @param parsedLen the actual parsed length.
|
|
* @return the integer value parsed
|
|
*/
|
|
int32_t parseOffsetFieldWithLocalizedDigits(const UnicodeString& text, int32_t start,
|
|
uint8_t minDigits, uint8_t maxDigits, uint16_t minVal, uint16_t maxVal, int32_t& parsedLen) const;
|
|
|
|
/**
|
|
* Reads a single decimal digit, either localized digits used by this object
|
|
* or any Unicode numeric character.
|
|
* @param text the text
|
|
* @param start the start index
|
|
* @param len the actual length read from the text
|
|
* the start index is not a decimal number.
|
|
* @return the integer value of the parsed digit, or -1 on failure.
|
|
*/
|
|
int32_t parseSingleLocalizedDigit(const UnicodeString& text, int32_t start, int32_t& len) const;
|
|
|
|
/**
|
|
* Formats offset using ASCII digits. The input offset range must be
|
|
* within +/-24 hours (exclusive).
|
|
* @param offset The offset
|
|
* @param sep The field separator character or 0 if not required
|
|
* @param minFields The minimum fields
|
|
* @param maxFields The maximum fields
|
|
* @return The offset string
|
|
*/
|
|
static UnicodeString& formatOffsetWithAsciiDigits(int32_t offset, char16_t sep,
|
|
OffsetFields minFields, OffsetFields maxFields, UnicodeString& result);
|
|
|
|
/**
|
|
* Parses offset represented by contiguous ASCII digits.
|
|
* <p>
|
|
* Note: This method expects the input position is already at the start of
|
|
* ASCII digits and does not parse sign (+/-).
|
|
* @param text The text contains a sequence of ASCII digits
|
|
* @param pos The parse position
|
|
* @param minFields The minimum Fields to be parsed
|
|
* @param maxFields The maximum Fields to be parsed
|
|
* @param fixedHourWidth true if hours field must be width of 2
|
|
* @return Parsed offset, 0 or positive number.
|
|
*/
|
|
static int32_t parseAbuttingAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos,
|
|
OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth);
|
|
|
|
/**
|
|
* Parses offset represented by ASCII digits and separators.
|
|
* <p>
|
|
* Note: This method expects the input position is already at the start of
|
|
* ASCII digits and does not parse sign (+/-).
|
|
* @param text The text
|
|
* @param pos The parse position
|
|
* @param sep The separator character
|
|
* @param minFields The minimum Fields to be parsed
|
|
* @param maxFields The maximum Fields to be parsed
|
|
* @return Parsed offset, 0 or positive number.
|
|
*/
|
|
static int32_t parseAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, char16_t sep,
|
|
OffsetFields minFields, OffsetFields maxFields);
|
|
|
|
/**
|
|
* Unquotes the message format style pattern.
|
|
* @param pattern the pattern
|
|
* @param result receive the unquoted pattern.
|
|
* @return A reference to result.
|
|
*/
|
|
static UnicodeString& unquote(const UnicodeString& pattern, UnicodeString& result);
|
|
|
|
/**
|
|
* Initialize localized GMT format offset hour/min/sec patterns.
|
|
* This method parses patterns into optimized run-time format.
|
|
* @param status receives the status.
|
|
*/
|
|
void initGMTOffsetPatterns(UErrorCode& status);
|
|
|
|
/**
|
|
* Check if there are any GMT format offset patterns without
|
|
* any separators between hours field and minutes field and update
|
|
* fAbuttingOffsetHoursAndMinutes field. This method must be called
|
|
* after all patterns are parsed into pattern items.
|
|
*/
|
|
void checkAbuttingHoursAndMinutes();
|
|
|
|
/**
|
|
* Creates an instance of TimeZone for the given offset
|
|
* @param offset the offset
|
|
* @return A TimeZone with the given offset
|
|
*/
|
|
TimeZone* createTimeZoneForOffset(int32_t offset) const;
|
|
|
|
/**
|
|
* Returns the time type for the given name type
|
|
* @param nameType the name type
|
|
* @return the time type (unknown/standard/daylight)
|
|
*/
|
|
static UTimeZoneFormatTimeType getTimeType(UTimeZoneNameType nameType);
|
|
|
|
/**
|
|
* Returns the time zone ID of a match at the specified index within
|
|
* the MatchInfoCollection.
|
|
* @param matches the collection of matches
|
|
* @param idx the index withing matches
|
|
* @param tzID receives the resolved time zone ID
|
|
* @return a reference to tzID.
|
|
*/
|
|
UnicodeString& getTimeZoneID(const TimeZoneNames::MatchInfoCollection* matches, int32_t idx, UnicodeString& tzID) const;
|
|
|
|
|
|
/**
|
|
* Parse a zone ID.
|
|
* @param text the text contains a time zone ID string at the position.
|
|
* @param pos the position
|
|
* @param tzID receives the zone ID
|
|
* @return a reference to tzID
|
|
*/
|
|
UnicodeString& parseZoneID(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
|
|
|
|
/**
|
|
* Parse a short zone ID.
|
|
* @param text the text contains a short time zone ID string at the position.
|
|
* @param pos the position
|
|
* @param tzID receives the short zone ID
|
|
* @return a reference to tzID
|
|
*/
|
|
UnicodeString& parseShortZoneID(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
|
|
|
|
/**
|
|
* Parse an exemplar location string.
|
|
* @param text the text contains an exemplar location string at the position.
|
|
* @param pos the position.
|
|
* @param tzID receives the time zone ID
|
|
* @return a reference to tzID
|
|
*/
|
|
UnicodeString& parseExemplarLocation(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* !UCONFIG_NO_FORMATTING */
|
|
|
|
#endif /* U_SHOW_CPLUSPLUS_API */
|
|
|
|
#endif
|