intl/icu/source/i18n/unicode/tzfmt.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/icu/source/i18n/unicode/tzfmt.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,1085 @@
     1.4 +/*
     1.5 +*******************************************************************************
     1.6 +* Copyright (C) 2011-2013, International Business Machines Corporation and    *
     1.7 +* others. All Rights Reserved.                                                *
     1.8 +*******************************************************************************
     1.9 +*/
    1.10 +#ifndef __TZFMT_H
    1.11 +#define __TZFMT_H
    1.12 +
    1.13 +/**
    1.14 + * \file
    1.15 + * \brief C++ API: TimeZoneFormat
    1.16 + */
    1.17 +
    1.18 +#include "unicode/utypes.h"
    1.19 +
    1.20 +#if !UCONFIG_NO_FORMATTING
    1.21 +
    1.22 +#include "unicode/format.h"
    1.23 +#include "unicode/timezone.h"
    1.24 +#include "unicode/tznames.h"
    1.25 +
    1.26 +U_CDECL_BEGIN
    1.27 +/**
    1.28 + * Constants for time zone display format style used by format/parse APIs
    1.29 + * in TimeZoneFormat.
    1.30 + * @stable ICU 50
    1.31 + */
    1.32 +typedef enum UTimeZoneFormatStyle {
    1.33 +    /**
    1.34 +     * Generic location format, such as "United States Time (New York)", "Italy Time"
    1.35 +     * @stable ICU 50
    1.36 +     */
    1.37 +    UTZFMT_STYLE_GENERIC_LOCATION,
    1.38 +    /**
    1.39 +     * Generic long non-location format, such as "Eastern Time".
    1.40 +     * @stable ICU 50
    1.41 +     */
    1.42 +    UTZFMT_STYLE_GENERIC_LONG,
    1.43 +    /**
    1.44 +     * Generic short non-location format, such as "ET".
    1.45 +     * @stable ICU 50
    1.46 +     */
    1.47 +    UTZFMT_STYLE_GENERIC_SHORT,
    1.48 +    /**
    1.49 +     * Specific long format, such as "Eastern Standard Time".
    1.50 +     * @stable ICU 50
    1.51 +     */
    1.52 +    UTZFMT_STYLE_SPECIFIC_LONG,
    1.53 +    /**
    1.54 +     * Specific short format, such as "EST", "PDT".
    1.55 +     * @stable ICU 50
    1.56 +     */
    1.57 +    UTZFMT_STYLE_SPECIFIC_SHORT,
    1.58 +    /**
    1.59 +     * Localized GMT offset format, such as "GMT-05:00", "UTC+0100"
    1.60 +     * @stable ICU 50
    1.61 +     */
    1.62 +    UTZFMT_STYLE_LOCALIZED_GMT,
    1.63 +#ifndef U_HIDE_DRAFT_API
    1.64 +    /**
    1.65 +     * Short localized GMT offset format, such as "GMT-5", "UTC+1:30"
    1.66 +     * This style is equivalent to the LDML date format pattern "O".
    1.67 +     * @draft ICU 51
    1.68 +     */
    1.69 +    UTZFMT_STYLE_LOCALIZED_GMT_SHORT,
    1.70 +    /**
    1.71 +     * Short ISO 8601 local time difference (basic format) or the UTC indicator.
    1.72 +     * For example, "-05", "+0530", and "Z"(UTC).
    1.73 +     * This style is equivalent to the LDML date format pattern "X".
    1.74 +     * @draft ICU 51
    1.75 +     */
    1.76 +    UTZFMT_STYLE_ISO_BASIC_SHORT,
    1.77 +    /**
    1.78 +     * Short ISO 8601 locale time difference (basic format).
    1.79 +     * For example, "-05" and "+0530".
    1.80 +     * This style is equivalent to the LDML date format pattern "x".
    1.81 +     * @draft ICU 51
    1.82 +     */
    1.83 +    UTZFMT_STYLE_ISO_BASIC_LOCAL_SHORT,
    1.84 +    /**
    1.85 +     * Fixed width ISO 8601 local time difference (basic format) or the UTC indicator.
    1.86 +     * For example, "-0500", "+0530", and "Z"(UTC).
    1.87 +     * This style is equivalent to the LDML date format pattern "XX".
    1.88 +     * @draft ICU 51
    1.89 +     */
    1.90 +    UTZFMT_STYLE_ISO_BASIC_FIXED,
    1.91 +    /**
    1.92 +     * Fixed width ISO 8601 local time difference (basic format).
    1.93 +     * For example, "-0500" and "+0530".
    1.94 +     * This style is equivalent to the LDML date format pattern "xx".
    1.95 +     * @draft ICU 51
    1.96 +     */
    1.97 +    UTZFMT_STYLE_ISO_BASIC_LOCAL_FIXED,
    1.98 +    /**
    1.99 +     * ISO 8601 local time difference (basic format) with optional seconds field, or the UTC indicator.
   1.100 +     * For example, "-0500", "+052538", and "Z"(UTC).
   1.101 +     * This style is equivalent to the LDML date format pattern "XXXX".
   1.102 +     * @draft ICU 51
   1.103 +     */
   1.104 +    UTZFMT_STYLE_ISO_BASIC_FULL,
   1.105 +    /**
   1.106 +     * ISO 8601 local time difference (basic format) with optional seconds field.
   1.107 +     * For example, "-0500" and "+052538".
   1.108 +     * This style is equivalent to the LDML date format pattern "xxxx".
   1.109 +     * @draft ICU 51
   1.110 +     */
   1.111 +    UTZFMT_STYLE_ISO_BASIC_LOCAL_FULL,
   1.112 +    /**
   1.113 +     * Fixed width ISO 8601 local time difference (extended format) or the UTC indicator.
   1.114 +     * For example, "-05:00", "+05:30", and "Z"(UTC).
   1.115 +     * This style is equivalent to the LDML date format pattern "XXX".
   1.116 +     * @draft ICU 51
   1.117 +     */
   1.118 +    UTZFMT_STYLE_ISO_EXTENDED_FIXED,
   1.119 +    /**
   1.120 +     * Fixed width ISO 8601 local time difference (extended format).
   1.121 +     * For example, "-05:00" and "+05:30".
   1.122 +     * This style is equivalent to the LDML date format pattern "xxx" and "ZZZZZ".
   1.123 +     * @draft ICU 51
   1.124 +     */
   1.125 +    UTZFMT_STYLE_ISO_EXTENDED_LOCAL_FIXED,
   1.126 +    /**
   1.127 +     * ISO 8601 local time difference (extended format) with optional seconds field, or the UTC indicator.
   1.128 +     * For example, "-05:00", "+05:25:38", and "Z"(UTC).
   1.129 +     * This style is equivalent to the LDML date format pattern "XXXXX".
   1.130 +     * @draft ICU 51
   1.131 +     */
   1.132 +    UTZFMT_STYLE_ISO_EXTENDED_FULL,
   1.133 +    /**
   1.134 +     * ISO 8601 local time difference (extended format) with optional seconds field.
   1.135 +     * For example, "-05:00" and "+05:25:38".
   1.136 +     * This style is equivalent to the LDML date format pattern "xxxxx".
   1.137 +     * @draft ICU 51
   1.138 +     */
   1.139 +    UTZFMT_STYLE_ISO_EXTENDED_LOCAL_FULL,
   1.140 +    /**
   1.141 +     * Time Zone ID, such as "America/Los_Angeles".
   1.142 +     * @draft ICU 51
   1.143 +     */
   1.144 +    UTZFMT_STYLE_ZONE_ID,
   1.145 +    /**
   1.146 +     * Short Time Zone ID (BCP 47 Unicode location extension, time zone type value), such as "uslax".
   1.147 +     * @draft ICU 51
   1.148 +     */
   1.149 +    UTZFMT_STYLE_ZONE_ID_SHORT,
   1.150 +    /**
   1.151 +     * Exemplar location, such as "Los Angeles" and "Paris".
   1.152 +     * @draft ICU 51
   1.153 +     */
   1.154 +    UTZFMT_STYLE_EXEMPLAR_LOCATION
   1.155 +#endif /* U_HIDE_DRAFT_API */
   1.156 +} UTimeZoneFormatStyle;
   1.157 +
   1.158 +/**
   1.159 + * Constants for GMT offset pattern types.
   1.160 + * @stable ICU 50
   1.161 + */
   1.162 +typedef enum UTimeZoneFormatGMTOffsetPatternType {
   1.163 +    /**
   1.164 +     * Positive offset with hours and minutes fields
   1.165 +     * @stable ICU 50
   1.166 +     */
   1.167 +    UTZFMT_PAT_POSITIVE_HM,
   1.168 +    /**
   1.169 +     * Positive offset with hours, minutes and seconds fields
   1.170 +     * @stable ICU 50
   1.171 +     */
   1.172 +    UTZFMT_PAT_POSITIVE_HMS,
   1.173 +    /**
   1.174 +     * Negative offset with hours and minutes fields
   1.175 +     * @stable ICU 50
   1.176 +     */
   1.177 +    UTZFMT_PAT_NEGATIVE_HM,
   1.178 +    /**
   1.179 +     * Negative offset with hours, minutes and seconds fields
   1.180 +     * @stable ICU 50
   1.181 +     */
   1.182 +    UTZFMT_PAT_NEGATIVE_HMS,
   1.183 +#ifndef U_HIDE_DRAFT_API
   1.184 +    /**
   1.185 +     * Positive offset with hours field
   1.186 +     * @draft ICU 51
   1.187 +     */
   1.188 +    UTZFMT_PAT_POSITIVE_H,
   1.189 +    /**
   1.190 +     * Negative offset with hours field
   1.191 +     * @draft ICU 51
   1.192 +     */
   1.193 +    UTZFMT_PAT_NEGATIVE_H,
   1.194 +#endif /* U_HIDE_DRAFT_API */
   1.195 +
   1.196 +    /**
   1.197 +     * Number of UTimeZoneFormatGMTOffsetPatternType types.
   1.198 +     * @internal
   1.199 +     */
   1.200 +    UTZFMT_PAT_COUNT = 6
   1.201 +} UTimeZoneFormatGMTOffsetPatternType;
   1.202 +
   1.203 +/**
   1.204 + * Constants for time types used by TimeZoneFormat APIs for
   1.205 + * receiving time type (standard time, daylight time or unknown).
   1.206 + * @stable ICU 50
   1.207 + */
   1.208 +typedef enum UTimeZoneFormatTimeType {
   1.209 +    /**
   1.210 +     * Unknown
   1.211 +     * @stable ICU 50
   1.212 +     */
   1.213 +    UTZFMT_TIME_TYPE_UNKNOWN,
   1.214 +    /**
   1.215 +     * Standard time
   1.216 +     * @stable ICU 50
   1.217 +     */
   1.218 +    UTZFMT_TIME_TYPE_STANDARD,
   1.219 +    /**
   1.220 +     * Daylight saving time
   1.221 +     * @stable ICU 50
   1.222 +     */
   1.223 +    UTZFMT_TIME_TYPE_DAYLIGHT
   1.224 +} UTimeZoneFormatTimeType;
   1.225 +
   1.226 +/**
   1.227 + * Constants for parse option flags, used for specifying optional parse behavior.
   1.228 + * @stable ICU 50
   1.229 + */
   1.230 +typedef enum UTimeZoneFormatParseOption {
   1.231 +    /**
   1.232 +     * No option.
   1.233 +     * @stable ICU 50
   1.234 +     */
   1.235 +    UTZFMT_PARSE_OPTION_NONE        = 0x00,
   1.236 +    /**
   1.237 +     * When a time zone display name is not found within a set of display names
   1.238 +     * used for the specified style, look for the name from display names used
   1.239 +     * by other styles.
   1.240 +     * @stable ICU 50
   1.241 +     */
   1.242 +    UTZFMT_PARSE_OPTION_ALL_STYLES  = 0x01
   1.243 +} UTimeZoneFormatParseOption;
   1.244 +
   1.245 +U_CDECL_END
   1.246 +
   1.247 +U_NAMESPACE_BEGIN
   1.248 +
   1.249 +class TimeZoneGenericNames;
   1.250 +class UVector;
   1.251 +
   1.252 +/**
   1.253 + * <code>TimeZoneFormat</code> supports time zone display name formatting and parsing.
   1.254 + * An instance of TimeZoneFormat works as a subformatter of {@link SimpleDateFormat},
   1.255 + * but you can also directly get a new instance of <code>TimeZoneFormat</code> and
   1.256 + * formatting/parsing time zone display names.
   1.257 + * <p>
   1.258 + * ICU implements the time zone display names defined by <a href="http://www.unicode.org/reports/tr35/">UTS#35
   1.259 + * Unicode Locale Data Markup Language (LDML)</a>. {@link TimeZoneNames} represents the
   1.260 + * time zone display name data model and this class implements the algorithm for actual
   1.261 + * formatting and parsing.
   1.262 + *
   1.263 + * @see SimpleDateFormat
   1.264 + * @see TimeZoneNames
   1.265 + * @stable ICU 50
   1.266 + */
   1.267 +class U_I18N_API TimeZoneFormat : public Format {
   1.268 +public:
   1.269 +    /**
   1.270 +     * Copy constructor.
   1.271 +     * @stable ICU 50
   1.272 +     */
   1.273 +    TimeZoneFormat(const TimeZoneFormat& other);
   1.274 +
   1.275 +    /**
   1.276 +     * Destructor.
   1.277 +     * @stable ICU 50
   1.278 +     */
   1.279 +    virtual ~TimeZoneFormat();
   1.280 +
   1.281 +    /**
   1.282 +     * Assignment operator.
   1.283 +     * @stable ICU 50
   1.284 +     */
   1.285 +    TimeZoneFormat& operator=(const TimeZoneFormat& other);
   1.286 +
   1.287 +    /**
   1.288 +     * Return true if the given Format objects are semantically equal.
   1.289 +     * Objects of different subclasses are considered unequal.
   1.290 +     * @param other The object to be compared with.
   1.291 +     * @return Return TRUE if the given Format objects are semantically equal.
   1.292 +     *                Objects of different subclasses are considered unequal.
   1.293 +     * @stable ICU 50
   1.294 +     */
   1.295 +    virtual UBool operator==(const Format& other) const;
   1.296 +
   1.297 +    /**
   1.298 +     * Clone this object polymorphically. The caller is responsible
   1.299 +     * for deleting the result when done.
   1.300 +     * @return A copy of the object
   1.301 +     * @stable ICU 50
   1.302 +     */
   1.303 +    virtual Format* clone() const;
   1.304 +
   1.305 +    /**
   1.306 +     * Creates an instance of <code>TimeZoneFormat</code> for the given locale.
   1.307 +     * @param locale The locale.
   1.308 +     * @param status Recevies the status.
   1.309 +     * @return An instance of <code>TimeZoneFormat</code> for the given locale,
   1.310 +     *          owned by the caller.
   1.311 +     * @stable ICU 50
   1.312 +     */
   1.313 +    static TimeZoneFormat* U_EXPORT2 createInstance(const Locale& locale, UErrorCode& status);
   1.314 +
   1.315 +    /**
   1.316 +     * Returns the time zone display name data used by this instance.
   1.317 +     * @return The time zone display name data.
   1.318 +     * @stable ICU 50
   1.319 +     */
   1.320 +    const TimeZoneNames* getTimeZoneNames() const;
   1.321 +
   1.322 +    /**
   1.323 +     * Sets the time zone display name data to this format instnace.
   1.324 +     * The caller should not delete the TimeZoenNames object after it is adopted
   1.325 +     * by this call.
   1.326 +     * @param tznames TimeZoneNames object to be adopted.
   1.327 +     * @stable ICU 50
   1.328 +     */
   1.329 +    void adoptTimeZoneNames(TimeZoneNames *tznames);
   1.330 +
   1.331 +    /**
   1.332 +     * Sets the time zone display name data to this format instnace.
   1.333 +     * @param tznames TimeZoneNames object to be set.
   1.334 +     * @stable ICU 50
   1.335 +     */
   1.336 +    void setTimeZoneNames(const TimeZoneNames &tznames);
   1.337 +
   1.338 +    /**
   1.339 +     * Returns the localized GMT format pattern.
   1.340 +     * @param pattern Receives the localized GMT format pattern.
   1.341 +     * @return A reference to the result pattern.
   1.342 +     * @see #setGMTPattern
   1.343 +     * @stable ICU 50
   1.344 +     */
   1.345 +    UnicodeString& getGMTPattern(UnicodeString& pattern) const;
   1.346 +
   1.347 +    /**
   1.348 +     * Sets the localized GMT format pattern. The pattern must contain
   1.349 +     * a single argument {0}, for example "GMT {0}".
   1.350 +     * @param pattern The localized GMT format pattern to be used by this object.
   1.351 +     * @param status Recieves the status.
   1.352 +     * @see #getGMTPattern
   1.353 +     * @stable ICU 50
   1.354 +     */
   1.355 +    void setGMTPattern(const UnicodeString& pattern, UErrorCode& status);
   1.356 +
   1.357 +    /**
   1.358 +     * Returns the offset pattern used for localized GMT format.
   1.359 +     * @param type The offset pattern type enum.
   1.360 +     * @param pattern Receives the offset pattern.
   1.361 +     * @return A reference to the result pattern.
   1.362 +     * @see #setGMTOffsetPattern
   1.363 +     * @stable ICU 50
   1.364 +     */
   1.365 +    UnicodeString& getGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, UnicodeString& pattern) const;
   1.366 +
   1.367 +    /**
   1.368 +     * Sets the offset pattern for the given offset type.
   1.369 +     * @param type The offset pattern type enum.
   1.370 +     * @param pattern The offset pattern used for localized GMT format for the type.
   1.371 +     * @param status Receives the status.
   1.372 +     * @see #getGMTOffsetPattern
   1.373 +     * @stable ICU 50
   1.374 +     */
   1.375 +    void setGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, const UnicodeString& pattern, UErrorCode& status);
   1.376 +
   1.377 +    /**
   1.378 +     * Returns the decimal digit characters used for localized GMT format.
   1.379 +     * The return string contains exactly 10 code points (may include Unicode
   1.380 +     * supplementary character) representing digit 0 to digit 9 in the ascending
   1.381 +     * order.
   1.382 +     * @param digits Receives the decimal digits used for localized GMT format.
   1.383 +     * @see #setGMTOffsetDigits
   1.384 +     * @stable ICU 50
   1.385 +     */
   1.386 +    UnicodeString& getGMTOffsetDigits(UnicodeString& digits) const;
   1.387 +
   1.388 +    /**
   1.389 +     * Sets the decimal digit characters used for localized GMT format.
   1.390 +     * The input <code>digits</code> must contain exactly 10 code points
   1.391 +     * (Unicode supplementary characters are also allowed) representing
   1.392 +     * digit 0 to digit 9 in the ascending order. When the input <code>digits</code>
   1.393 +     * does not satisfy the condition, <code>U_ILLEGAL_ARGUMENT_ERROR</code>
   1.394 +     * will be set to the return status.
   1.395 +     * @param digits The decimal digits used for localized GMT format.
   1.396 +     * @param status Receives the status.
   1.397 +     * @see #getGMTOffsetDigits
   1.398 +     * @stable ICU 50
   1.399 +     */
   1.400 +    void setGMTOffsetDigits(const UnicodeString& digits, UErrorCode& status);
   1.401 +
   1.402 +    /**
   1.403 +     * Returns the localized GMT format string for GMT(UTC) itself (GMT offset is 0).
   1.404 +     * @param gmtZeroFormat Receives the localized GMT string string for GMT(UTC) itself.
   1.405 +     * @return A reference to the result GMT string.
   1.406 +     * @see #setGMTZeroFormat
   1.407 +     * @stable ICU 50
   1.408 +     */
   1.409 +    UnicodeString& getGMTZeroFormat(UnicodeString& gmtZeroFormat) const;
   1.410 +
   1.411 +    /**
   1.412 +     * Sets the localized GMT format string for GMT(UTC) itself (GMT offset is 0).
   1.413 +     * @param gmtZeroFormat The localized GMT format string for GMT(UTC).
   1.414 +     * @param status Receives the status.
   1.415 +     * @see #getGMTZeroFormat
   1.416 +     * @stable ICU 50
   1.417 +     */
   1.418 +    void setGMTZeroFormat(const UnicodeString& gmtZeroFormat, UErrorCode& status);
   1.419 +
   1.420 +    /**
   1.421 +     * Returns the bitwise flags of UTimeZoneFormatParseOption representing the default parse
   1.422 +     * options used by this object.
   1.423 +     * @return the default parse options.
   1.424 +     * @see ParseOption
   1.425 +     * @stable ICU 50
   1.426 +     */
   1.427 +    uint32_t getDefaultParseOptions(void) const;
   1.428 +
   1.429 +    /**
   1.430 +     * Sets the default parse options.
   1.431 +     * <p><b>Note</b>: By default, an instance of <code>TimeZoneFormat</code>
   1.432 +     * created by {@link #createInstance} has no parse options set (UTZFMT_PARSE_OPTION_NONE).
   1.433 +     * To specify multipe options, use bitwise flags of UTimeZoneFormatParseOption.
   1.434 +     * @see #UTimeZoneFormatParseOption
   1.435 +     * @stable ICU 50
   1.436 +     */
   1.437 +    void setDefaultParseOptions(uint32_t flags);
   1.438 +
   1.439 +#ifndef U_HIDE_DRAFT_API
   1.440 +    /**
   1.441 +     * Returns the ISO 8601 basic time zone string for the given offset.
   1.442 +     * For example, "-08", "-0830" and "Z"
   1.443 +     *
   1.444 +     * @param offset the offset from GMT(UTC) in milliseconds.
   1.445 +     * @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
   1.446 +     * @param isShort true if shortest form is used.
   1.447 +     * @param ignoreSeconds true if non-zero offset seconds is appended.
   1.448 +     * @param result Receives the ISO format string.
   1.449 +     * @param status Receives the status
   1.450 +     * @return the ISO 8601 basic format.
   1.451 +     * @see #formatOffsetISO8601Extended
   1.452 +     * @see #parseOffsetISO8601
   1.453 +     * @draft ICU 51
   1.454 +     */
   1.455 +    UnicodeString& formatOffsetISO8601Basic(int32_t offset, UBool useUtcIndicator, UBool isShort, UBool ignoreSeconds,
   1.456 +        UnicodeString& result, UErrorCode& status) const;
   1.457 +
   1.458 +    /**
   1.459 +     * Returns the ISO 8601 extended time zone string for the given offset.
   1.460 +     * For example, "-08:00", "-08:30" and "Z"
   1.461 +     *
   1.462 +     * @param offset the offset from GMT(UTC) in milliseconds.
   1.463 +     * @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
   1.464 +     * @param isShort true if shortest form is used.
   1.465 +     * @param ignoreSeconds true if non-zero offset seconds is appended.
   1.466 +     * @param result Receives the ISO format string.
   1.467 +     * @param status Receives the status
   1.468 +     * @return the ISO 8601 basic format.
   1.469 +     * @see #formatOffsetISO8601Extended
   1.470 +     * @see #parseOffsetISO8601
   1.471 +     * @draft ICU 51
   1.472 +     */
   1.473 +    UnicodeString& formatOffsetISO8601Extended(int32_t offset, UBool useUtcIndicator, UBool isShort, UBool ignoreSeconds,
   1.474 +        UnicodeString& result, UErrorCode& status) const;
   1.475 +#endif /* U_HIDE_DRAFT_API */
   1.476 +
   1.477 +    /**
   1.478 +     * Returns the localized GMT(UTC) offset format for the given offset.
   1.479 +     * The localized GMT offset is defined by;
   1.480 +     * <ul>
   1.481 +     * <li>GMT format pattern (e.g. "GMT {0}" - see {@link #getGMTPattern})
   1.482 +     * <li>Offset time pattern (e.g. "+HH:mm" - see {@link #getGMTOffsetPattern})
   1.483 +     * <li>Offset digits (e.g. "0123456789" - see {@link #getGMTOffsetDigits})
   1.484 +     * <li>GMT zero format (e.g. "GMT" - see {@link #getGMTZeroFormat})
   1.485 +     * </ul>
   1.486 +     * This format always uses 2 digit hours and minutes. When the given offset has non-zero
   1.487 +     * seconds, 2 digit seconds field will be appended. For example,
   1.488 +     * GMT+05:00 and GMT+05:28:06.
   1.489 +     * @param offset the offset from GMT(UTC) in milliseconds.
   1.490 +     * @param status Receives the status
   1.491 +     * @param result Receives the localized GMT format string.
   1.492 +     * @return A reference to the result.
   1.493 +     * @see #parseOffsetLocalizedGMT
   1.494 +     * @stable ICU 50
   1.495 +     */
   1.496 +    UnicodeString& formatOffsetLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const;
   1.497 +
   1.498 +#ifndef U_HIDE_DRAFT_API
   1.499 +    /**
   1.500 +     * Returns the short localized GMT(UTC) offset format for the given offset.
   1.501 +     * The short localized GMT offset is defined by;
   1.502 +     * <ul>
   1.503 +     * <li>GMT format pattern (e.g. "GMT {0}" - see {@link #getGMTPattern})
   1.504 +     * <li>Offset time pattern (e.g. "+HH:mm" - see {@link #getGMTOffsetPattern})
   1.505 +     * <li>Offset digits (e.g. "0123456789" - see {@link #getGMTOffsetDigits})
   1.506 +     * <li>GMT zero format (e.g. "GMT" - see {@link #getGMTZeroFormat})
   1.507 +     * </ul>
   1.508 +     * This format uses the shortest representation of offset. The hours field does not
   1.509 +     * have leading zero and lower fields with zero will be truncated. For example,
   1.510 +     * GMT+5 and GMT+530.
   1.511 +     * @param offset the offset from GMT(UTC) in milliseconds.
   1.512 +     * @param status Receives the status
   1.513 +     * @param result Receives the short localized GMT format string.
   1.514 +     * @return A reference to the result.
   1.515 +     * @see #parseOffsetShortLocalizedGMT
   1.516 +     * @draft ICU 51
   1.517 +     */
   1.518 +    UnicodeString& formatOffsetShortLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const;
   1.519 +#endif /* U_HIDE_DRAFT_API */
   1.520 +
   1.521 +    using Format::format;
   1.522 +
   1.523 +    /**
   1.524 +     * Returns the display name of the time zone at the given date for the style.
   1.525 +     * @param style The style (e.g. <code>UTZFMT_STYLE_GENERIC_LONG</code>, <code>UTZFMT_STYLE_LOCALIZED_GMT</code>...)
   1.526 +     * @param tz The time zone.
   1.527 +     * @param date The date.
   1.528 +     * @param name Receives the display name.
   1.529 +     * @param timeType the output argument for receiving the time type (standard/daylight/unknown)
   1.530 +     * used for the display name, or NULL if the information is not necessary.
   1.531 +     * @return A reference to the result
   1.532 +     * @see #UTimeZoneFormatStyle
   1.533 +     * @see #UTimeZoneFormatTimeType
   1.534 +     * @stable ICU 50
   1.535 +     */
   1.536 +    virtual UnicodeString& format(UTimeZoneFormatStyle style, const TimeZone& tz, UDate date,
   1.537 +        UnicodeString& name, UTimeZoneFormatTimeType* timeType = NULL) const;
   1.538 +
   1.539 +    /**
   1.540 +     * Returns offset from GMT(UTC) in milliseconds for the given ISO 8601
   1.541 +     * style time zone string. When the given string is not an ISO 8601 time zone
   1.542 +     * string, this method sets the current position as the error index
   1.543 +     * to <code>ParsePosition pos</code> and returns 0.
   1.544 +     * @param text The text contains ISO8601 style time zone string (e.g. "-08:00", "Z")
   1.545 +     *              at the position.
   1.546 +     * @param pos The ParsePosition object.
   1.547 +     * @return The offset from GMT(UTC) in milliseconds for the given ISO 8601 style
   1.548 +     *              time zone string.
   1.549 +     * @see #formatOffsetISO8601Basic
   1.550 +     * @see #formatOffsetISO8601Extended
   1.551 +     * @stable ICU 50
   1.552 +     */
   1.553 +    int32_t parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos) const;
   1.554 +
   1.555 +    /**
   1.556 +     * Returns offset from GMT(UTC) in milliseconds for the given localized GMT
   1.557 +     * offset format string. When the given string cannot be parsed, this method
   1.558 +     * sets the current position as the error index to <code>ParsePosition pos</code>
   1.559 +     * and returns 0.
   1.560 +     * @param text The text contains a localized GMT offset string at the position.
   1.561 +     * @param pos The ParsePosition object.
   1.562 +     * @return The offset from GMT(UTC) in milliseconds for the given localized GMT
   1.563 +     *          offset format string.
   1.564 +     * @see #formatOffsetLocalizedGMT
   1.565 +     * @stable ICU 50
   1.566 +     */
   1.567 +    int32_t parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const;
   1.568 +
   1.569 +#ifndef U_HIDE_DRAFT_API
   1.570 +    /**
   1.571 +     * Returns offset from GMT(UTC) in milliseconds for the given short localized GMT
   1.572 +     * offset format string. When the given string cannot be parsed, this method
   1.573 +     * sets the current position as the error index to <code>ParsePosition pos</code>
   1.574 +     * and returns 0.
   1.575 +     * @param text The text contains a short localized GMT offset string at the position.
   1.576 +     * @param pos The ParsePosition object.
   1.577 +     * @return The offset from GMT(UTC) in milliseconds for the given short localized GMT
   1.578 +     *          offset format string.
   1.579 +     * @see #formatOffsetShortLocalizedGMT
   1.580 +     * @draft ICU 51
   1.581 +     */
   1.582 +    int32_t parseOffsetShortLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const;
   1.583 +#endif /* U_HIDE_DRAFT_API */
   1.584 +
   1.585 +    /**
   1.586 +     * Returns a <code>TimeZone</code> by parsing the time zone string according to
   1.587 +     * the given parse position, the specified format style and parse options.
   1.588 +     *
   1.589 +     * @param text The text contains a time zone string at the position.
   1.590 +     * @param style The format style
   1.591 +     * @param pos The position.
   1.592 +     * @param parseOptions The parse options repesented by bitwise flags of UTimeZoneFormatParseOption.
   1.593 +     * @param timeType The output argument for receiving the time type (standard/daylight/unknown),
   1.594 +     * or NULL if the information is not necessary.
   1.595 +     * @return A <code>TimeZone</code>, or null if the input could not be parsed.
   1.596 +     * @see UTimeZoneFormatStyle
   1.597 +     * @see UTimeZoneFormatParseOption
   1.598 +     * @see UTimeZoneFormatTimeType
   1.599 +     * @stable ICU 50
   1.600 +     */
   1.601 +    virtual TimeZone* parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
   1.602 +        int32_t parseOptions, UTimeZoneFormatTimeType* timeType = NULL) const;
   1.603 +
   1.604 +    /**
   1.605 +     * Returns a <code>TimeZone</code> by parsing the time zone string according to
   1.606 +     * the given parse position, the specified format style and the default parse options.
   1.607 +     *
   1.608 +     * @param text The text contains a time zone string at the position.
   1.609 +     * @param style The format style
   1.610 +     * @param pos The position.
   1.611 +     * @param timeType The output argument for receiving the time type (standard/daylight/unknown),
   1.612 +     * or NULL if the information is not necessary.
   1.613 +     * @return A <code>TimeZone</code>, or null if the input could not be parsed.
   1.614 +     * @see UTimeZoneFormatStyle
   1.615 +     * @see UTimeZoneFormatParseOption
   1.616 +     * @see UTimeZoneFormatTimeType
   1.617 +     * @stable ICU 50
   1.618 +     */
   1.619 +    TimeZone* parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos,
   1.620 +        UTimeZoneFormatTimeType* timeType = NULL) const;
   1.621 +
   1.622 +    /* ----------------------------------------------
   1.623 +     * Format APIs
   1.624 +     * ---------------------------------------------- */
   1.625 +
   1.626 +    /**
   1.627 +     * Format an object to produce a time zone display string using localized GMT offset format.
   1.628 +     * This method handles Formattable objects with a <code>TimeZone</code>. If a the Formattable
   1.629 +     * object type is not a <code>TimeZone</code>, then it returns a failing UErrorCode.
   1.630 +     * @param obj The object to format. Must be a <code>TimeZone</code>.
   1.631 +     * @param appendTo Output parameter to receive result. Result is appended to existing contents.
   1.632 +     * @param pos On input: an alignment field, if desired. On output: the offsets of the alignment field.
   1.633 +     * @param status Output param filled with success/failure status.
   1.634 +     * @return Reference to 'appendTo' parameter.
   1.635 +     * @stable ICU 50
   1.636 +     */
   1.637 +    virtual UnicodeString& format(const Formattable& obj, UnicodeString& appendTo,
   1.638 +        FieldPosition& pos, UErrorCode& status) const;
   1.639 +
   1.640 +    /**
   1.641 +     * Parse a string to produce an object. This methods handles parsing of
   1.642 +     * time zone display strings into Formattable objects with <code>TimeZone</code>.
   1.643 +     * @param source The string to be parsed into an object.
   1.644 +     * @param result Formattable to be set to the parse result. If parse fails, return contents are undefined.
   1.645 +     * @param parse_pos The position to start parsing at. Upon return this param is set to the position after the
   1.646 +     *                  last character successfully parsed. If the source is not parsed successfully, this param
   1.647 +     *                  will remain unchanged.
   1.648 +     * @return A newly created Formattable* object, or NULL on failure.  The caller owns this and should
   1.649 +     *                 delete it when done.
   1.650 +     * @stable ICU 50
   1.651 +     */
   1.652 +    virtual void parseObject(const UnicodeString& source, Formattable& result, ParsePosition& parse_pos) const;
   1.653 +
   1.654 +    /**
   1.655 +     * ICU "poor man's RTTI", returns a UClassID for this class.
   1.656 +     * @stable ICU 50
   1.657 +     */
   1.658 +    static UClassID U_EXPORT2 getStaticClassID(void);
   1.659 +
   1.660 +    /**
   1.661 +     * ICU "poor man's RTTI", returns a UClassID for the actual class.
   1.662 +     * @stable ICU 50
   1.663 +     */
   1.664 +    virtual UClassID getDynamicClassID() const;
   1.665 +
   1.666 +protected:
   1.667 +    /**
   1.668 +     * Constructs a TimeZoneFormat object for the specified locale.
   1.669 +     * @param locale the locale
   1.670 +     * @param status receives the status.
   1.671 +     * @stable ICU 50
   1.672 +     */
   1.673 +    TimeZoneFormat(const Locale& locale, UErrorCode& status);
   1.674 +
   1.675 +private:
   1.676 +    /* Locale of this object */
   1.677 +    Locale fLocale;
   1.678 +
   1.679 +    /* Stores the region (could be implicit default) */
   1.680 +    char fTargetRegion[ULOC_COUNTRY_CAPACITY];
   1.681 +
   1.682 +    /* TimeZoneNames object used by this formatter */
   1.683 +    TimeZoneNames* fTimeZoneNames;
   1.684 +
   1.685 +    /* TimeZoneGenericNames object used by this formatter - lazily instantiated */
   1.686 +    TimeZoneGenericNames* fTimeZoneGenericNames;
   1.687 +
   1.688 +    /* Localized GMT format pattern - e.g. "GMT{0}" */
   1.689 +    UnicodeString fGMTPattern;
   1.690 +
   1.691 +    /* Array of offset patterns used by Localized GMT format - e.g. "+HH:mm" */
   1.692 +    UnicodeString fGMTOffsetPatterns[UTZFMT_PAT_COUNT];
   1.693 +
   1.694 +    /* Localized decimal digits used by Localized GMT format */
   1.695 +    UChar32 fGMTOffsetDigits[10];
   1.696 +
   1.697 +    /* Localized GMT zero format - e.g. "GMT" */
   1.698 +    UnicodeString fGMTZeroFormat;
   1.699 +
   1.700 +    /* Bit flags representing parse options */
   1.701 +    uint32_t fDefParseOptionFlags;
   1.702 +
   1.703 +    /* Constant parts of GMT format pattern, populated from localized GMT format pattern*/
   1.704 +    UnicodeString fGMTPatternPrefix;    /* Substring before {0} */
   1.705 +    UnicodeString fGMTPatternSuffix;    /* Substring after {0} */
   1.706 +
   1.707 +    /* Compiled offset patterns generated from fGMTOffsetPatterns[] */
   1.708 +    UVector* fGMTOffsetPatternItems[UTZFMT_PAT_COUNT];
   1.709 +
   1.710 +    UBool fAbuttingOffsetHoursAndMinutes;
   1.711 +
   1.712 +    /**
   1.713 +     * Returns the time zone's specific format string.
   1.714 +     * @param tz the time zone
   1.715 +     * @param stdType the name type used for standard time
   1.716 +     * @param dstType the name type used for daylight time
   1.717 +     * @param date the date
   1.718 +     * @param name receives the time zone's specific format name string
   1.719 +     * @param timeType when null, actual time type is set
   1.720 +     * @return a reference to name.
   1.721 +     */
   1.722 +    UnicodeString& formatSpecific(const TimeZone& tz, UTimeZoneNameType stdType, UTimeZoneNameType dstType,
   1.723 +        UDate date, UnicodeString& name, UTimeZoneFormatTimeType *timeType) const;
   1.724 +
   1.725 +    /**
   1.726 +     * Returns the time zone's generic format string.
   1.727 +     * @param tz the time zone
   1.728 +     * @param genType the generic name type
   1.729 +     * @param date the date
   1.730 +     * @param name receives the time zone's generic format name string
   1.731 +     * @return a reference to name.
   1.732 +     */
   1.733 +    UnicodeString& formatGeneric(const TimeZone& tz, int32_t genType, UDate date, UnicodeString& name) const;
   1.734 +
   1.735 +    /**
   1.736 +     * Lazily create a TimeZoneGenericNames instance
   1.737 +     * @param status receives the status
   1.738 +     * @return the cached TimeZoneGenericNames.
   1.739 +     */
   1.740 +    const TimeZoneGenericNames* getTimeZoneGenericNames(UErrorCode& status) const;
   1.741 +
   1.742 +    /**
   1.743 +     * Private method returning the time zone's exemplar location string.
   1.744 +     * This method will never return empty.
   1.745 +     * @param tz the time zone
   1.746 +     * @param name receives the time zone's exemplar location name
   1.747 +     * @return a reference to name.
   1.748 +     */
   1.749 +    UnicodeString& formatExemplarLocation(const TimeZone& tz, UnicodeString& name) const;
   1.750 +
   1.751 +    /**
   1.752 +     * Private enum specifying a combination of offset fields
   1.753 +     */
   1.754 +    enum OffsetFields {
   1.755 +        FIELDS_H,
   1.756 +        FIELDS_HM,
   1.757 +        FIELDS_HMS
   1.758 +    };
   1.759 +
   1.760 +    /**
   1.761 +     * Parses the localized GMT pattern string and initialize
   1.762 +     * localized gmt pattern fields.
   1.763 +     * @param gmtPattern the localized GMT pattern string such as "GMT {0}"
   1.764 +     * @param status U_ILLEGAL_ARGUMENT_ERROR is set when the specified pattern does not
   1.765 +     *               contain an argument "{0}".
   1.766 +     */
   1.767 +    void initGMTPattern(const UnicodeString& gmtPattern, UErrorCode& status);
   1.768 +
   1.769 +    /**
   1.770 +     * Parse the GMT offset pattern into runtime optimized format.
   1.771 +     * @param pattern the offset pattern string
   1.772 +     * @param required the required set of fields, such as FIELDS_HM
   1.773 +     * @param status U_ILLEGAL_ARGUMENT is set when the specified pattern does not contain
   1.774 +     *               pattern letters for the required fields.
   1.775 +     * @return A list of GMTOffsetField objects, or NULL on error.
   1.776 +     */
   1.777 +    static UVector* parseOffsetPattern(const UnicodeString& pattern, OffsetFields required, UErrorCode& status);
   1.778 +
   1.779 +    /**
   1.780 +     * Appends seconds field to the offset pattern with hour/minute
   1.781 +     * Note: This code will be obsoleted once we add hour-minute-second pattern data in CLDR.
   1.782 +     * @param offsetHM the offset pattern including hours and minutes fields
   1.783 +     * @param result the output offset pattern including hour, minute and seconds fields
   1.784 +     * @param status receives the status
   1.785 +     * @return a reference to result
   1.786 +     */
   1.787 +    static UnicodeString& expandOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result, UErrorCode& status);
   1.788 +
   1.789 +    /**
   1.790 +     * Truncates minutes field to the offset pattern with hour/minute
   1.791 +     * Note: This code will be obsoleted once we add hour pattern data in CLDR.
   1.792 +     * @param offsetHM the offset pattern including hours and minutes fields
   1.793 +     * @param result the output offset pattern including only hours field
   1.794 +     * @param status receives the status
   1.795 +     * @return a reference to result
   1.796 +     */
   1.797 +    static UnicodeString& truncateOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result, UErrorCode& status);
   1.798 +
   1.799 +    /**
   1.800 +     * Break input string into UChar32[]. Each array element represents
   1.801 +     * a code point. This method is used for parsing localized digit
   1.802 +     * characters and support characters in Unicode supplemental planes.
   1.803 +     * @param str the string
   1.804 +     * @param codeArray receives the result
   1.805 +     * @param capacity the capacity of codeArray
   1.806 +     * @return TRUE when the specified code array is fully filled with code points
   1.807 +     *         (no under/overflow).
   1.808 +     */
   1.809 +    static UBool toCodePoints(const UnicodeString& str, UChar32* codeArray, int32_t capacity);
   1.810 +
   1.811 +    /**
   1.812 +     * Private method supprting all of ISO8601 formats
   1.813 +     * @param offset the offset from GMT(UTC) in milliseconds.
   1.814 +     * @param useUtcIndicator true if ISO 8601 UTC indicator "Z" is used when the offset is 0.
   1.815 +     * @param isShort true if shortest form is used.
   1.816 +     * @param ignoreSeconds true if non-zero offset seconds is appended.
   1.817 +     * @param result Receives the result
   1.818 +     * @param status Receives the status
   1.819 +     * @return the ISO 8601 basic format.
   1.820 +     */
   1.821 +    UnicodeString& formatOffsetISO8601(int32_t offset, UBool isBasic, UBool useUtcIndicator,
   1.822 +        UBool isShort, UBool ignoreSeconds, UnicodeString& result, UErrorCode& status) const;
   1.823 +
   1.824 +    /**
   1.825 +     * Private method used for localized GMT formatting.
   1.826 +     * @param offset the zone's UTC offset
   1.827 +     * @param isShort true if the short localized GMT format is desired.
   1.828 +     * @param result receives the localized GMT format string
   1.829 +     * @param status receives the status
   1.830 +     */
   1.831 +    UnicodeString& formatOffsetLocalizedGMT(int32_t offset, UBool isShort, UnicodeString& result, UErrorCode& status) const;
   1.832 +
   1.833 +    /**
   1.834 +     * Returns offset from GMT(UTC) in milliseconds for the given ISO 8601 style
   1.835 +     * (extended format) time zone string. When the given string is not an ISO 8601 time
   1.836 +     * zone string, this method sets the current position as the error index
   1.837 +     * to <code>ParsePosition pos</code> and returns 0.
   1.838 +     * @param text the text contains ISO 8601 style time zone string (e.g. "-08:00", "Z")
   1.839 +     *      at the position.
   1.840 +     * @param pos the position, non-negative error index will be set on failure.
   1.841 +     * @param extendedOnly TRUE if parsing the text as ISO 8601 extended offset format (e.g. "-08:00"),
   1.842 +     *      or FALSE to evaluate the text as basic format.
   1.843 +     * @param hasDigitOffset receiving if the parsed zone string contains offset digits.
   1.844 +     * @return the offset from GMT(UTC) in milliseconds for the given ISO 8601 style
   1.845 +     *      time zone string.
   1.846 +     */
   1.847 +    int32_t parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos, UBool extendedOnly,
   1.848 +        UBool* hasDigitOffset = NULL) const;
   1.849 +
   1.850 +    /**
   1.851 +     * Appends localized digits to the buffer.
   1.852 +     * This code assumes that the input number is 0 - 59
   1.853 +     * @param buf the target buffer
   1.854 +     * @param n the integer number
   1.855 +     * @param minDigits the minimum digits width
   1.856 +     */
   1.857 +    void appendOffsetDigits(UnicodeString& buf, int32_t n, uint8_t minDigits) const;
   1.858 +
   1.859 +    /**
   1.860 +     * Returns offset from GMT(UTC) in milliseconds for the given localized GMT
   1.861 +     * offset format string. When the given string cannot be parsed, this method
   1.862 +     * sets the current position as the error index to <code>ParsePosition pos</code>
   1.863 +     * and returns 0.
   1.864 +     * @param text the text contains a localized GMT offset string at the position.
   1.865 +     * @param pos the position, non-negative error index will be set on failure.
   1.866 +     * @param isShort true if this parser to try the short format first
   1.867 +     * @param hasDigitOffset receiving if the parsed zone string contains offset digits.
   1.868 +     * @return the offset from GMT(UTC) in milliseconds for the given localized GMT
   1.869 +     *      offset format string.
   1.870 +     */
   1.871 +    int32_t parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos,
   1.872 +        UBool isShort, UBool* hasDigitOffset) const;
   1.873 +
   1.874 +    /**
   1.875 +     * Parse localized GMT format generated by the patter used by this formatter, except
   1.876 +     * GMT Zero format.
   1.877 +     * @param text the input text
   1.878 +     * @param start the start index
   1.879 +     * @param isShort true if the short localized format is parsed.
   1.880 +     * @param parsedLen receives the parsed length
   1.881 +     * @return the parsed offset in milliseconds
   1.882 +     */
   1.883 +    int32_t parseOffsetLocalizedGMTPattern(const UnicodeString& text, int32_t start,
   1.884 +        UBool isShort, int32_t& parsedLen) const;
   1.885 +
   1.886 +    /**
   1.887 +     * Parses localized GMT offset fields into offset.
   1.888 +     * @param text the input text
   1.889 +     * @param start the start index
   1.890 +     * @param isShort true if this is a short format - currently not used
   1.891 +     * @param parsedLen the parsed length, or 0 on failure.
   1.892 +     * @return the parsed offset in milliseconds.
   1.893 +     */
   1.894 +    int32_t parseOffsetFields(const UnicodeString& text, int32_t start, UBool isShort, int32_t& parsedLen) const;
   1.895 +
   1.896 +    /**
   1.897 +     * Parse localized GMT offset fields with the given pattern.
   1.898 +     * @param text the input text
   1.899 +     * @param start the start index
   1.900 +     * @param pattenItems the pattern (already itemized)
   1.901 +     * @param forceSingleHourDigit true if hours field is parsed as a single digit
   1.902 +     * @param hour receives the hour offset field
   1.903 +     * @param min receives the minute offset field
   1.904 +     * @param sec receives the second offset field
   1.905 +     * @return the parsed length
   1.906 +     */
   1.907 +    int32_t parseOffsetFieldsWithPattern(const UnicodeString& text, int32_t start,
   1.908 +        UVector* patternItems, UBool forceSingleHourDigit, int32_t& hour, int32_t& min, int32_t& sec) const;
   1.909 +
   1.910 +    /**
   1.911 +     * Parses abutting localized GMT offset fields (such as 0800) into offset.
   1.912 +     * @param text the input text
   1.913 +     * @param start the start index
   1.914 +     * @param parsedLen the parsed length, or 0 on failure
   1.915 +     * @return the parsed offset in milliseconds.
   1.916 +     */
   1.917 +    int32_t parseAbuttingOffsetFields(const UnicodeString& text, int32_t start, int32_t& parsedLen) const;
   1.918 +
   1.919 +    /**
   1.920 +     * Parses the input text using the default format patterns (e.g. "UTC{0}").
   1.921 +     * @param text the input text
   1.922 +     * @param start the start index
   1.923 +     * @param parsedLen the parsed length, or 0 on failure
   1.924 +     * @return the parsed offset in milliseconds.
   1.925 +     */
   1.926 +    int32_t parseOffsetDefaultLocalizedGMT(const UnicodeString& text, int start, int32_t& parsedLen) const;
   1.927 +
   1.928 +    /**
   1.929 +     * Parses the input GMT offset fields with the default offset pattern.
   1.930 +     * @param text the input text
   1.931 +     * @param start the start index
   1.932 +     * @param separator the separator character, e.g. ':'
   1.933 +     * @param parsedLen the parsed length, or 0 on failure.
   1.934 +     * @return the parsed offset in milliseconds.
   1.935 +     */
   1.936 +    int32_t parseDefaultOffsetFields(const UnicodeString& text, int32_t start, UChar separator,
   1.937 +        int32_t& parsedLen) const;
   1.938 +
   1.939 +    /**
   1.940 +     * Reads an offset field value. This method will stop parsing when
   1.941 +     * 1) number of digits reaches <code>maxDigits</code>
   1.942 +     * 2) just before already parsed number exceeds <code>maxVal</code>
   1.943 +     *
   1.944 +     * @param text the text
   1.945 +     * @param start the start offset
   1.946 +     * @param minDigits the minimum number of required digits
   1.947 +     * @param maxDigits the maximum number of digits
   1.948 +     * @param minVal the minimum value
   1.949 +     * @param maxVal the maximum value
   1.950 +     * @param parsedLen the actual parsed length.
   1.951 +     * @return the integer value parsed
   1.952 +     */
   1.953 +    int32_t parseOffsetFieldWithLocalizedDigits(const UnicodeString& text, int32_t start,
   1.954 +        uint8_t minDigits, uint8_t maxDigits, uint16_t minVal, uint16_t maxVal, int32_t& parsedLen) const;
   1.955 +
   1.956 +    /**
   1.957 +     * Reads a single decimal digit, either localized digits used by this object
   1.958 +     * or any Unicode numeric character.
   1.959 +     * @param text the text
   1.960 +     * @param start the start index
   1.961 +     * @param len the actual length read from the text
   1.962 +     * the start index is not a decimal number.
   1.963 +     * @return the integer value of the parsed digit, or -1 on failure.
   1.964 +     */
   1.965 +    int32_t parseSingleLocalizedDigit(const UnicodeString& text, int32_t start, int32_t& len) const;
   1.966 +
   1.967 +    /**
   1.968 +     * Formats offset using ASCII digits. The input offset range must be
   1.969 +     * within +/-24 hours (exclusive).
   1.970 +     * @param offset The offset
   1.971 +     * @param sep The field separator character or 0 if not required
   1.972 +     * @param minFields The minimum fields
   1.973 +     * @param maxFields The maximum fields
   1.974 +     * @return The offset string
   1.975 +     */
   1.976 +    static UnicodeString& formatOffsetWithAsciiDigits(int32_t offset, UChar sep,
   1.977 +        OffsetFields minFields, OffsetFields maxFields, UnicodeString& result);
   1.978 +
   1.979 +    /**
   1.980 +     * Parses offset represented by contiguous ASCII digits.
   1.981 +     * <p>
   1.982 +     * Note: This method expects the input position is already at the start of
   1.983 +     * ASCII digits and does not parse sign (+/-).
   1.984 +     * @param text The text contains a sequence of ASCII digits
   1.985 +     * @param pos The parse position
   1.986 +     * @param minFields The minimum Fields to be parsed
   1.987 +     * @param maxFields The maximum Fields to be parsed
   1.988 +     * @param fixedHourWidth true if hours field must be width of 2
   1.989 +     * @return Parsed offset, 0 or positive number.
   1.990 +     */
   1.991 +    static int32_t parseAbuttingAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos,
   1.992 +        OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth);
   1.993 +
   1.994 +    /**
   1.995 +     * Parses offset represented by ASCII digits and separators.
   1.996 +     * <p>
   1.997 +     * Note: This method expects the input position is already at the start of
   1.998 +     * ASCII digits and does not parse sign (+/-).
   1.999 +     * @param text The text
  1.1000 +     * @param pos The parse position
  1.1001 +     * @param sep The separator character
  1.1002 +     * @param minFields The minimum Fields to be parsed
  1.1003 +     * @param maxFields The maximum Fields to be parsed
  1.1004 +     * @return Parsed offset, 0 or positive number.
  1.1005 +     */
  1.1006 +    static int32_t parseAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, UChar sep,
  1.1007 +        OffsetFields minFields, OffsetFields maxFields);
  1.1008 +
  1.1009 +    /**
  1.1010 +     * Unquotes the message format style pattern.
  1.1011 +     * @param pattern the pattern
  1.1012 +     * @param result receive the unquoted pattern.
  1.1013 +     * @return A reference to result.
  1.1014 +     */
  1.1015 +    static UnicodeString& unquote(const UnicodeString& pattern, UnicodeString& result);
  1.1016 +
  1.1017 +    /**
  1.1018 +     * Initialize localized GMT format offset hour/min/sec patterns.
  1.1019 +     * This method parses patterns into optimized run-time format.
  1.1020 +     * @param status receives the status.
  1.1021 +     */
  1.1022 +    void initGMTOffsetPatterns(UErrorCode& status);
  1.1023 +
  1.1024 +    /**
  1.1025 +     * Check if there are any GMT format offset patterns without
  1.1026 +     * any separators between hours field and minutes field and update
  1.1027 +     * fAbuttingOffsetHoursAndMinutes field. This method must be called
  1.1028 +     * after all patterns are parsed into pattern items.
  1.1029 +     */
  1.1030 +    void checkAbuttingHoursAndMinutes();
  1.1031 +
  1.1032 +    /**
  1.1033 +     * Creates an instance of TimeZone for the given offset
  1.1034 +     * @param offset the offset
  1.1035 +     * @return A TimeZone with the given offset
  1.1036 +     */
  1.1037 +    TimeZone* createTimeZoneForOffset(int32_t offset) const;
  1.1038 +
  1.1039 +    /**
  1.1040 +     * Returns the time type for the given name type
  1.1041 +     * @param nameType the name type
  1.1042 +     * @return the time type (unknown/standard/daylight)
  1.1043 +     */
  1.1044 +    static UTimeZoneFormatTimeType getTimeType(UTimeZoneNameType nameType);
  1.1045 +
  1.1046 +    /**
  1.1047 +     * Returns the time zone ID of a match at the specified index within
  1.1048 +     * the MatchInfoCollection.
  1.1049 +     * @param matches the collection of matches
  1.1050 +     * @param idx the index withing matches
  1.1051 +     * @param tzID receives the resolved time zone ID
  1.1052 +     * @return a reference to tzID.
  1.1053 +     */
  1.1054 +    UnicodeString& getTimeZoneID(const TimeZoneNames::MatchInfoCollection* matches, int32_t idx, UnicodeString& tzID) const;
  1.1055 +
  1.1056 +
  1.1057 +    /**
  1.1058 +     * Parse a zone ID.
  1.1059 +     * @param text the text contains a time zone ID string at the position.
  1.1060 +     * @param pos the position
  1.1061 +     * @param tzID receives the zone ID
  1.1062 +     * @return a reference to tzID
  1.1063 +     */
  1.1064 +    UnicodeString& parseZoneID(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
  1.1065 +
  1.1066 +    /**
  1.1067 +     * Parse a short zone ID.
  1.1068 +     * @param text the text contains a short time zone ID string at the position.
  1.1069 +     * @param pos the position
  1.1070 +     * @param tzID receives the short zone ID
  1.1071 +     * @return a reference to tzID
  1.1072 +     */
  1.1073 +    UnicodeString& parseShortZoneID(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
  1.1074 +
  1.1075 +    /**
  1.1076 +     * Parse an exemplar location string.
  1.1077 +     * @param text the text contains an exemplar location string at the position.
  1.1078 +     * @param pos the position.
  1.1079 +     * @param tzID receives the time zone ID
  1.1080 +     * @return a reference to tzID
  1.1081 +     */
  1.1082 +    UnicodeString& parseExemplarLocation(const UnicodeString& text, ParsePosition& pos, UnicodeString& tzID) const;
  1.1083 +};
  1.1084 +
  1.1085 +U_NAMESPACE_END
  1.1086 +
  1.1087 +#endif /* !UCONFIG_NO_FORMATTING */
  1.1088 +#endif

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