| /* |
| ******************************************************************************* |
| * Copyright (C) 2011-2012, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| |
| #include "unicode/utypes.h" |
| |
| #if !UCONFIG_NO_FORMATTING |
| |
| #include "unicode/calendar.h" |
| #include "unicode/tzfmt.h" |
| #include "unicode/numsys.h" |
| #include "unicode/uchar.h" |
| #include "unicode/udat.h" |
| #include "tzgnames.h" |
| #include "cmemory.h" |
| #include "cstring.h" |
| #include "putilimp.h" |
| #include "uassert.h" |
| #include "ucln_in.h" |
| #include "umutex.h" |
| #include "uresimp.h" |
| #include "ureslocs.h" |
| #include "uvector.h" |
| #include "zonemeta.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| static const char gZoneStringsTag[] = "zoneStrings"; |
| static const char gGmtFormatTag[]= "gmtFormat"; |
| static const char gGmtZeroFormatTag[] = "gmtZeroFormat"; |
| static const char gHourFormatTag[]= "hourFormat"; |
| |
| static const UChar TZID_GMT[] = {0x0045, 0x0074, 0x0063, 0x002F, 0x0047, 0x004D, 0x0054, 0}; // Etc/GMT |
| |
| static const UChar DEFAULT_GMT_PATTERN[] = {0x0047, 0x004D, 0x0054, 0x007B, 0x0030, 0x007D, 0}; // GMT{0} |
| //static const UChar DEFAULT_GMT_ZERO[] = {0x0047, 0x004D, 0x0054, 0}; // GMT |
| static const UChar DEFAULT_GMT_POSITIVE_HM[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0}; // +HH:mm |
| static const UChar DEFAULT_GMT_POSITIVE_HMS[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0}; // +HH:mm:ss |
| static const UChar DEFAULT_GMT_NEGATIVE_HM[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0}; // -HH:mm |
| static const UChar DEFAULT_GMT_NEGATIVE_HMS[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0}; // -HH:mm:ss |
| |
| static const UChar32 DEFAULT_GMT_DIGITS[] = { |
| 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, |
| 0x0035, 0x0036, 0x0037, 0x0038, 0x0039 |
| }; |
| |
| static const UChar DEFAULT_GMT_OFFSET_SEP = 0x003A; // ':' |
| |
| static const UChar ARG0[] = {0x007B, 0x0030, 0x007D}; // "{0}" |
| static const int ARG0_LEN = 3; |
| |
| static const UChar DEFAULT_GMT_OFFSET_MINUTE_PATTERN[] = {0x006D, 0x006D, 0}; // "mm" |
| static const UChar DEFAULT_GMT_OFFSET_SECOND_PATTERN[] = {0x0073, 0x0073, 0}; // "ss" |
| |
| static const UChar ALT_GMT_STRINGS[][4] = { |
| {0x0047, 0x004D, 0x0054, 0}, // GMT |
| {0x0055, 0x0054, 0x0043, 0}, // UTC |
| {0x0055, 0x0054, 0, 0}, // UT |
| {0, 0, 0, 0} |
| }; |
| |
| // Order of GMT offset pattern parsing, *_HMS must be evaluated first |
| // because *_HM is most likely a substring of *_HMS |
| static const int32_t PARSE_GMT_OFFSET_TYPES[] = { |
| UTZFMT_PAT_POSITIVE_HMS, |
| UTZFMT_PAT_NEGATIVE_HMS, |
| UTZFMT_PAT_POSITIVE_HM, |
| UTZFMT_PAT_NEGATIVE_HM, |
| -1 |
| }; |
| |
| static const UChar SINGLEQUOTE = 0x0027; |
| static const UChar PLUS = 0x002B; |
| static const UChar MINUS = 0x002D; |
| static const UChar ISO8601_UTC = 0x005A; // 'Z' |
| static const UChar ISO8601_SEP = 0x003A; // ':' |
| |
| static const int32_t MILLIS_PER_HOUR = 60 * 60 * 1000; |
| static const int32_t MILLIS_PER_MINUTE = 60 * 1000; |
| static const int32_t MILLIS_PER_SECOND = 1000; |
| |
| // Maximum offset (exclusive) in millisecond supported by offset formats |
| static int32_t MAX_OFFSET = 24 * MILLIS_PER_HOUR; |
| |
| // Maximum values for GMT offset fields |
| static const int32_t MAX_OFFSET_HOUR = 23; |
| static const int32_t MAX_OFFSET_MINUTE = 59; |
| static const int32_t MAX_OFFSET_SECOND = 59; |
| |
| static const int32_t UNKNOWN_OFFSET = 0x7FFFFFFF; |
| |
| static const int32_t ALL_SPECIFIC_NAME_TYPES = UTZNM_LONG_STANDARD | UTZNM_LONG_DAYLIGHT | UTZNM_SHORT_STANDARD | UTZNM_SHORT_DAYLIGHT; |
| static const int32_t ALL_GENERIC_NAME_TYPES = UTZGNM_LOCATION | UTZGNM_LONG | UTZGNM_SHORT; |
| |
| #define STYLE_FLAG(c) (1 << (c)) |
| #define DIGIT_VAL(c) (0x0030 <= (c) && (c) <= 0x0039 ? (c) - 0x0030 : -1) |
| #define MAX_OFFSET_DIGITS 6 |
| |
| |
| // ------------------------------------------------------------------ |
| // GMTOffsetField |
| // |
| // This class represents a localized GMT offset pattern |
| // item and used by TimeZoneFormat |
| // ------------------------------------------------------------------ |
| class GMTOffsetField : public UMemory { |
| public: |
| enum FieldType { |
| TEXT = 0, |
| HOUR = 1, |
| MINUTE = 2, |
| SECOND = 4 |
| }; |
| |
| virtual ~GMTOffsetField(); |
| |
| static GMTOffsetField* createText(const UnicodeString& text, UErrorCode& status); |
| static GMTOffsetField* createTimeField(FieldType type, uint8_t width, UErrorCode& status); |
| static UBool isValid(FieldType type, int32_t width); |
| static FieldType getTypeByLetter(UChar ch); |
| |
| FieldType getType() const; |
| uint8_t getWidth() const; |
| const UChar* getPatternText(void) const; |
| |
| private: |
| UChar* fText; |
| FieldType fType; |
| uint8_t fWidth; |
| |
| GMTOffsetField(); |
| }; |
| |
| GMTOffsetField::GMTOffsetField() |
| : fText(NULL), fType(TEXT), fWidth(0) { |
| } |
| |
| GMTOffsetField::~GMTOffsetField() { |
| if (fText) { |
| uprv_free(fText); |
| } |
| } |
| |
| GMTOffsetField* |
| GMTOffsetField::createText(const UnicodeString& text, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| GMTOffsetField* result = new GMTOffsetField(); |
| if (result == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| |
| int32_t len = text.length(); |
| result->fText = (UChar*)uprv_malloc((len + 1) * sizeof(UChar)); |
| if (result->fText == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| delete result; |
| return NULL; |
| } |
| u_strncpy(result->fText, text.getBuffer(), len); |
| result->fText[len] = 0; |
| result->fType = TEXT; |
| |
| return result; |
| } |
| |
| GMTOffsetField* |
| GMTOffsetField::createTimeField(FieldType type, uint8_t width, UErrorCode& status) { |
| U_ASSERT(type != TEXT); |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| GMTOffsetField* result = new GMTOffsetField(); |
| if (result == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| |
| result->fType = type; |
| result->fWidth = width; |
| |
| return result; |
| } |
| |
| UBool |
| GMTOffsetField::isValid(FieldType type, int32_t width) { |
| switch (type) { |
| case HOUR: |
| return (width == 1 || width == 2); |
| case MINUTE: |
| case SECOND: |
| return (width == 2); |
| default: |
| U_ASSERT(FALSE); |
| } |
| return (width > 0); |
| } |
| |
| GMTOffsetField::FieldType |
| GMTOffsetField::getTypeByLetter(UChar ch) { |
| if (ch == 0x0048 /* H */) { |
| return HOUR; |
| } else if (ch == 0x006D /* m */) { |
| return MINUTE; |
| } else if (ch == 0x0073 /* s */) { |
| return SECOND; |
| } |
| return TEXT; |
| } |
| |
| inline GMTOffsetField::FieldType |
| GMTOffsetField::getType() const { |
| return fType; |
| } |
| |
| inline uint8_t |
| GMTOffsetField::getWidth() const { |
| return fWidth; |
| } |
| |
| inline const UChar* |
| GMTOffsetField::getPatternText(void) const { |
| return fText; |
| } |
| |
| |
| U_CDECL_BEGIN |
| static void U_CALLCONV |
| deleteGMTOffsetField(void *obj) { |
| delete static_cast<GMTOffsetField *>(obj); |
| } |
| U_CDECL_END |
| |
| |
| // ------------------------------------------------------------------ |
| // TimeZoneFormat |
| // ------------------------------------------------------------------ |
| UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TimeZoneFormat) |
| |
| TimeZoneFormat::TimeZoneFormat(const Locale& locale, UErrorCode& status) |
| : fLock(NULL),fLocale(locale), fTimeZoneNames(NULL), fTimeZoneGenericNames(NULL), fDefParseOptionFlags(0) { |
| |
| for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) { |
| fGMTOffsetPatternItems[i] = NULL; |
| } |
| |
| const char* region = fLocale.getCountry(); |
| int32_t regionLen = uprv_strlen(region); |
| if (regionLen == 0) { |
| char loc[ULOC_FULLNAME_CAPACITY]; |
| uloc_addLikelySubtags(fLocale.getName(), loc, sizeof(loc), &status); |
| |
| regionLen = uloc_getCountry(loc, fTargetRegion, sizeof(fTargetRegion), &status); |
| if (U_SUCCESS(status)) { |
| fTargetRegion[regionLen] = 0; |
| } else { |
| return; |
| } |
| } else if (regionLen < (int32_t)sizeof(fTargetRegion)) { |
| uprv_strcpy(fTargetRegion, region); |
| } else { |
| fTargetRegion[0] = 0; |
| } |
| |
| fTimeZoneNames = TimeZoneNames::createInstance(locale, status); |
| // fTimeZoneGenericNames is lazily instantiated |
| |
| const UChar* gmtPattern = NULL; |
| const UChar* hourFormats = NULL; |
| |
| UResourceBundle *zoneBundle = ures_open(U_ICUDATA_ZONE, locale.getName(), &status); |
| UResourceBundle *zoneStringsArray = ures_getByKeyWithFallback(zoneBundle, gZoneStringsTag, NULL, &status); |
| if (U_SUCCESS(status)) { |
| const UChar* resStr; |
| int32_t len; |
| resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gGmtFormatTag, &len, &status); |
| if (len > 0) { |
| gmtPattern = resStr; |
| } |
| resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gGmtZeroFormatTag, &len, &status); |
| if (len > 0) { |
| fGMTZeroFormat.setTo(TRUE, resStr, len); |
| } |
| resStr = ures_getStringByKeyWithFallback(zoneStringsArray, gHourFormatTag, &len, &status); |
| if (len > 0) { |
| hourFormats = resStr; |
| } |
| ures_close(zoneStringsArray); |
| ures_close(zoneBundle); |
| } |
| |
| if (gmtPattern == NULL) { |
| gmtPattern = DEFAULT_GMT_PATTERN; |
| } |
| initGMTPattern(UnicodeString(gmtPattern, -1), status); |
| |
| UBool useDefHourFmt = TRUE; |
| if (hourFormats) { |
| UChar *sep = u_strchr(hourFormats, (UChar)0x003B /* ';' */); |
| if (sep != NULL) { |
| fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM].setTo(FALSE, hourFormats, (int32_t)(sep - hourFormats)); |
| fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM].setTo(TRUE, sep + 1, -1); |
| expandOffsetPattern(fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM], fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HMS]); |
| expandOffsetPattern(fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM], fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HMS]); |
| useDefHourFmt = FALSE; |
| } |
| } |
| if (useDefHourFmt) { |
| fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HM].setTo(TRUE, DEFAULT_GMT_POSITIVE_HM, -1); |
| fGMTOffsetPatterns[UTZFMT_PAT_POSITIVE_HMS].setTo(TRUE, DEFAULT_GMT_POSITIVE_HMS, -1); |
| fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HM].setTo(TRUE, DEFAULT_GMT_NEGATIVE_HM, -1); |
| fGMTOffsetPatterns[UTZFMT_PAT_NEGATIVE_HMS].setTo(TRUE, DEFAULT_GMT_NEGATIVE_HMS, -1); |
| } |
| initGMTOffsetPatterns(status); |
| |
| NumberingSystem* ns = NumberingSystem::createInstance(locale, status); |
| UBool useDefDigits = TRUE; |
| if (ns && !ns->isAlgorithmic()) { |
| UnicodeString digits = ns->getDescription(); |
| useDefDigits = !toCodePoints(digits, fGMTOffsetDigits, 10); |
| } |
| if (useDefDigits) { |
| uprv_memcpy(fGMTOffsetDigits, DEFAULT_GMT_DIGITS, sizeof(UChar32) * 10); |
| } |
| delete ns; |
| } |
| |
| TimeZoneFormat::TimeZoneFormat(const TimeZoneFormat& other) |
| : Format(other), fTimeZoneNames(NULL), fTimeZoneGenericNames(NULL) { |
| |
| for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) { |
| fGMTOffsetPatternItems[i] = NULL; |
| } |
| *this = other; |
| } |
| |
| |
| TimeZoneFormat::~TimeZoneFormat() { |
| delete fTimeZoneNames; |
| delete fTimeZoneGenericNames; |
| for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) { |
| delete fGMTOffsetPatternItems[i]; |
| } |
| umtx_destroy(&fLock); |
| } |
| |
| TimeZoneFormat& |
| TimeZoneFormat::operator=(const TimeZoneFormat& other) { |
| if (this == &other) { |
| return *this; |
| } |
| |
| delete fTimeZoneNames; |
| delete fTimeZoneGenericNames; |
| fTimeZoneGenericNames = NULL; |
| |
| fLocale = other.fLocale; |
| uprv_memcpy(fTargetRegion, other.fTargetRegion, sizeof(fTargetRegion)); |
| |
| fTimeZoneNames = other.fTimeZoneNames->clone(); |
| if (other.fTimeZoneGenericNames) { |
| fTimeZoneGenericNames = other.fTimeZoneGenericNames->clone(); |
| } |
| |
| fGMTPattern = other.fGMTPattern; |
| fGMTPatternPrefix = other.fGMTPatternPrefix; |
| fGMTPatternSuffix = other.fGMTPatternSuffix; |
| |
| UErrorCode status = U_ZERO_ERROR; |
| for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS; i++) { |
| fGMTOffsetPatterns[i] = other.fGMTOffsetPatterns[i]; |
| delete fGMTOffsetPatternItems[i]; |
| } |
| initGMTOffsetPatterns(status); |
| U_ASSERT(U_SUCCESS(status)); |
| |
| fGMTZeroFormat = other.fGMTZeroFormat; |
| |
| uprv_memcpy(fGMTOffsetDigits, other.fGMTOffsetDigits, sizeof(fGMTOffsetDigits)); |
| |
| fDefParseOptionFlags = other.fDefParseOptionFlags; |
| |
| return *this; |
| } |
| |
| |
| UBool |
| TimeZoneFormat::operator==(const Format& other) const { |
| TimeZoneFormat* tzfmt = (TimeZoneFormat*)&other; |
| |
| UBool isEqual = |
| fLocale == tzfmt->fLocale |
| && fGMTPattern == tzfmt->fGMTPattern |
| && fGMTZeroFormat == tzfmt->fGMTZeroFormat |
| && *fTimeZoneNames == *tzfmt->fTimeZoneNames; |
| |
| for (int32_t i = 0; i <= UTZFMT_PAT_NEGATIVE_HMS && isEqual; i++) { |
| isEqual = fGMTOffsetPatterns[i] == tzfmt->fGMTOffsetPatterns[i]; |
| } |
| for (int32_t i = 0; i < 10 && isEqual; i++) { |
| isEqual = fGMTOffsetDigits[i] == tzfmt->fGMTOffsetDigits[i]; |
| } |
| // TODO |
| // Check fTimeZoneGenericNames. For now, |
| // if fTimeZoneNames is same, fTimeZoneGenericNames should |
| // be also equivalent. |
| return isEqual; |
| } |
| |
| Format* |
| TimeZoneFormat::clone() const { |
| return new TimeZoneFormat(*this); |
| } |
| |
| TimeZoneFormat* U_EXPORT2 |
| TimeZoneFormat::createInstance(const Locale& locale, UErrorCode& status) { |
| TimeZoneFormat* tzfmt = new TimeZoneFormat(locale, status); |
| if (U_SUCCESS(status)) { |
| return tzfmt; |
| } |
| delete tzfmt; |
| return NULL; |
| } |
| |
| // ------------------------------------------------------------------ |
| // Setter and Getter |
| |
| const TimeZoneNames* |
| TimeZoneFormat::getTimeZoneNames() const { |
| return (const TimeZoneNames*)fTimeZoneNames; |
| } |
| |
| void |
| TimeZoneFormat::adoptTimeZoneNames(TimeZoneNames *tznames) { |
| delete fTimeZoneNames; |
| fTimeZoneNames = tznames; |
| |
| // TODO - We should also update fTimeZoneGenericNames |
| } |
| |
| void |
| TimeZoneFormat::setTimeZoneNames(const TimeZoneNames &tznames) { |
| delete fTimeZoneNames; |
| fTimeZoneNames = tznames.clone(); |
| |
| // TODO - We should also update fTimeZoneGenericNames |
| } |
| |
| void |
| TimeZoneFormat::setDefaultParseOptions(int32_t flags) { |
| fDefParseOptionFlags = flags; |
| } |
| |
| int32_t |
| TimeZoneFormat::getDefaultParseOptions(void) const { |
| return fDefParseOptionFlags; |
| } |
| |
| |
| UnicodeString& |
| TimeZoneFormat::getGMTPattern(UnicodeString& pattern) const { |
| return pattern.setTo(fGMTPattern); |
| } |
| |
| void |
| TimeZoneFormat::setGMTPattern(const UnicodeString& pattern, UErrorCode& status) { |
| initGMTPattern(pattern, status); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::getGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, UnicodeString& pattern) const { |
| return pattern.setTo(fGMTOffsetPatterns[type]); |
| } |
| |
| void |
| TimeZoneFormat::setGMTOffsetPattern(UTimeZoneFormatGMTOffsetPatternType type, const UnicodeString& pattern, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return; |
| } |
| if (pattern == fGMTOffsetPatterns[type]) { |
| // No need to reset |
| return; |
| } |
| |
| OffsetFields required = (type == UTZFMT_PAT_POSITIVE_HMS || type == UTZFMT_PAT_NEGATIVE_HMS) ? FIELDS_HMS : FIELDS_HM; |
| |
| UVector* patternItems = parseOffsetPattern(pattern, required, status); |
| if (patternItems == NULL) { |
| return; |
| } |
| |
| fGMTOffsetPatterns[type].setTo(pattern); |
| delete fGMTOffsetPatternItems[type]; |
| fGMTOffsetPatternItems[type] = patternItems; |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::getGMTOffsetDigits(UnicodeString& digits) const { |
| digits.remove(); |
| for (int32_t i = 0; i < 10; i++) { |
| digits.append(fGMTOffsetDigits[i]); |
| } |
| return digits; |
| } |
| |
| void |
| TimeZoneFormat::setGMTOffsetDigits(const UnicodeString& digits, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return; |
| } |
| UChar32 digitArray[10]; |
| if (!toCodePoints(digits, digitArray, 10)) { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return; |
| } |
| uprv_memcpy(fGMTOffsetDigits, digitArray, sizeof(UChar32)*10); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::getGMTZeroFormat(UnicodeString& gmtZeroFormat) const { |
| return gmtZeroFormat.setTo(fGMTZeroFormat); |
| } |
| |
| void |
| TimeZoneFormat::setGMTZeroFormat(const UnicodeString& gmtZeroFormat, UErrorCode& status) { |
| if (U_SUCCESS(status)) { |
| if (gmtZeroFormat.isEmpty()) { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| } else if (gmtZeroFormat != fGMTZeroFormat) { |
| fGMTZeroFormat.setTo(gmtZeroFormat); |
| } |
| } |
| } |
| |
| // ------------------------------------------------------------------ |
| // Format and Parse |
| |
| UnicodeString& |
| TimeZoneFormat::format(UTimeZoneFormatStyle style, const TimeZone& tz, UDate date, |
| UnicodeString& name, UTimeZoneFormatTimeType* timeType /* = NULL */) const { |
| if (timeType) { |
| *timeType = UTZFMT_TIME_TYPE_UNKNOWN; |
| } |
| switch (style) { |
| case UTZFMT_STYLE_GENERIC_LOCATION: |
| formatGeneric(tz, UTZGNM_LOCATION, date, name); |
| break; |
| case UTZFMT_STYLE_GENERIC_LONG: |
| formatGeneric(tz, UTZGNM_LONG, date, name); |
| break; |
| case UTZFMT_STYLE_GENERIC_SHORT: |
| formatGeneric(tz, UTZGNM_SHORT, date, name); |
| break; |
| case UTZFMT_STYLE_SPECIFIC_LONG: |
| formatSpecific(tz, UTZNM_LONG_STANDARD, UTZNM_LONG_DAYLIGHT, date, name, timeType); |
| break; |
| case UTZFMT_STYLE_SPECIFIC_SHORT: |
| formatSpecific(tz, UTZNM_SHORT_STANDARD, UTZNM_SHORT_DAYLIGHT, date, name, timeType); |
| break; |
| case UTZFMT_STYLE_RFC822: |
| case UTZFMT_STYLE_ISO8601: |
| case UTZFMT_STYLE_LOCALIZED_GMT: |
| // will be handled below |
| break; |
| } |
| |
| if (name.isEmpty()) { |
| UErrorCode status = U_ZERO_ERROR; |
| int32_t rawOffset, dstOffset; |
| tz.getOffset(date, FALSE, rawOffset, dstOffset, status); |
| if (U_SUCCESS(status)) { |
| switch (style) { |
| case UTZFMT_STYLE_RFC822: |
| formatOffsetRFC822(rawOffset + dstOffset, name, status); |
| break; |
| case UTZFMT_STYLE_ISO8601: |
| formatOffsetISO8601(rawOffset + dstOffset, name, status); |
| break; |
| default: |
| formatOffsetLocalizedGMT(rawOffset + dstOffset, name, status); |
| break; |
| } |
| if (timeType) { |
| *timeType = (dstOffset != 0) ? UTZFMT_TIME_TYPE_DAYLIGHT : UTZFMT_TIME_TYPE_STANDARD; |
| } |
| } |
| U_ASSERT(U_SUCCESS(status)); |
| } |
| |
| return name; |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::format(const Formattable& obj, UnicodeString& appendTo, |
| FieldPosition& pos, UErrorCode& status) const { |
| if (U_FAILURE(status)) { |
| return appendTo; |
| } |
| UDate date = Calendar::getNow(); |
| if (obj.getType() == Formattable::kObject) { |
| const UObject* formatObj = obj.getObject(); |
| const TimeZone* tz = dynamic_cast<const TimeZone*>(formatObj); |
| if (tz == NULL) { |
| const Calendar* cal = dynamic_cast<const Calendar*>(formatObj); |
| if (cal != NULL) { |
| tz = &cal->getTimeZone(); |
| date = cal->getTime(status); |
| } |
| } |
| if (tz != NULL) { |
| int32_t rawOffset, dstOffset; |
| tz->getOffset(date, FALSE, rawOffset, dstOffset, status); |
| UnicodeString result; |
| formatOffsetLocalizedGMT(rawOffset + dstOffset, result, status); |
| if (U_SUCCESS(status)) { |
| appendTo.append(result); |
| if (pos.getField() == UDAT_TIMEZONE_FIELD) { |
| pos.setBeginIndex(0); |
| pos.setEndIndex(result.length()); |
| } |
| } |
| } |
| } |
| return appendTo; |
| } |
| |
| TimeZone* |
| TimeZoneFormat::parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos, |
| UTimeZoneFormatTimeType* timeType /*= NULL*/) const { |
| return parse(style, text, pos, getDefaultParseOptions(), timeType); |
| } |
| |
| TimeZone* |
| TimeZoneFormat::parse(UTimeZoneFormatStyle style, const UnicodeString& text, ParsePosition& pos, |
| int32_t parseOptions, UTimeZoneFormatTimeType* timeType /* = NULL */) const { |
| if (timeType) { |
| *timeType = UTZFMT_TIME_TYPE_UNKNOWN; |
| } |
| |
| int32_t startIdx = pos.getIndex(); |
| int32_t maxPos = text.length(); |
| int32_t offset; |
| |
| UBool fallbackLocalizedGMT = FALSE; |
| if (style == UTZFMT_STYLE_SPECIFIC_LONG || style == UTZFMT_STYLE_SPECIFIC_SHORT |
| || style == UTZFMT_STYLE_GENERIC_LONG || style == UTZFMT_STYLE_GENERIC_SHORT || style == UTZFMT_STYLE_GENERIC_LOCATION) { |
| // above styles may use localized gmt format as fallback |
| fallbackLocalizedGMT = TRUE; |
| } |
| |
| int32_t evaluated = 0; |
| ParsePosition tmpPos(startIdx); |
| |
| int32_t parsedOffset = UNKNOWN_OFFSET; // stores successfully parsed offset for later use |
| int32_t parsedPos = -1; // stores successfully parsed offset position for later use |
| |
| // Try localized GMT format first if necessary |
| if (fallbackLocalizedGMT) { |
| UBool hasDigitOffset = FALSE; |
| offset = parseOffsetLocalizedGMT(text, tmpPos, &hasDigitOffset); |
| if (tmpPos.getErrorIndex() == -1) { |
| // Even when the input text was successfully parsed as a localized GMT format text, |
| // we may still need to evaluate the specified style if - |
| // 1) GMT zero format was used, and |
| // 2) The input text was not completely processed |
| if (tmpPos.getIndex() == maxPos || hasDigitOffset) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| parsedOffset = offset; |
| parsedPos = tmpPos.getIndex(); |
| } |
| evaluated |= STYLE_FLAG(UTZFMT_STYLE_LOCALIZED_GMT); |
| |
| tmpPos.setIndex(startIdx); |
| tmpPos.setErrorIndex(-1); |
| } |
| |
| UErrorCode status = U_ZERO_ERROR; |
| UnicodeString tzID; |
| UTimeZoneFormatTimeType parsedTimeType = UTZFMT_TIME_TYPE_UNKNOWN; |
| |
| // Try the specified style |
| switch (style) { |
| case UTZFMT_STYLE_RFC822: |
| { |
| offset = parseOffsetRFC822(text, tmpPos); |
| if (tmpPos.getErrorIndex() == -1) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| } |
| break; |
| |
| case UTZFMT_STYLE_LOCALIZED_GMT: |
| { |
| offset = parseOffsetLocalizedGMT(text, tmpPos); |
| if (tmpPos.getErrorIndex() == -1) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| } |
| break; |
| |
| case UTZFMT_STYLE_ISO8601: |
| { |
| offset = parseOffsetISO8601(text, tmpPos); |
| if (tmpPos.getErrorIndex() == -1) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| // Note: ISO 8601 parser also support basic format (without ':'), |
| // which is same with RFC 822 format. |
| evaluated |= STYLE_FLAG(UTZFMT_STYLE_RFC822); |
| } |
| break; |
| |
| case UTZFMT_STYLE_SPECIFIC_LONG: |
| case UTZFMT_STYLE_SPECIFIC_SHORT: |
| { |
| // Specific styles |
| int32_t nameTypes = 0; |
| if (style == UTZFMT_STYLE_SPECIFIC_LONG) { |
| nameTypes = (UTZNM_LONG_STANDARD | UTZNM_LONG_DAYLIGHT); |
| } else { |
| U_ASSERT(style == UTZFMT_STYLE_SPECIFIC_SHORT); |
| nameTypes = (UTZNM_SHORT_STANDARD | UTZNM_SHORT_DAYLIGHT); |
| } |
| LocalPointer<TimeZoneNames::MatchInfoCollection> specificMatches(fTimeZoneNames->find(text, startIdx, nameTypes, status)); |
| if (U_FAILURE(status)) { |
| pos.setErrorIndex(startIdx); |
| return NULL; |
| } |
| if (!specificMatches.isNull()) { |
| int32_t matchIdx = -1; |
| int32_t matchPos = -1; |
| for (int32_t i = 0; i < specificMatches->size(); i++) { |
| matchPos = startIdx + specificMatches->getMatchLengthAt(i); |
| if (matchPos > parsedPos) { |
| matchIdx = i; |
| parsedPos = matchPos; |
| } |
| } |
| if (matchIdx >= 0) { |
| if (timeType) { |
| *timeType = getTimeType(specificMatches->getNameTypeAt(matchIdx)); |
| } |
| pos.setIndex(matchPos); |
| getTimeZoneID(specificMatches.getAlias(), matchIdx, tzID); |
| U_ASSERT(!tzID.isEmpty()); |
| return TimeZone::createTimeZone(tzID); |
| } |
| } |
| } |
| break; |
| |
| case UTZFMT_STYLE_GENERIC_LONG: |
| case UTZFMT_STYLE_GENERIC_SHORT: |
| case UTZFMT_STYLE_GENERIC_LOCATION: |
| { |
| int32_t genericNameTypes = 0; |
| switch (style) { |
| case UTZFMT_STYLE_GENERIC_LOCATION: |
| genericNameTypes = UTZGNM_LOCATION; |
| break; |
| |
| case UTZFMT_STYLE_GENERIC_LONG: |
| genericNameTypes = UTZGNM_LONG | UTZGNM_LOCATION; |
| break; |
| |
| case UTZFMT_STYLE_GENERIC_SHORT: |
| genericNameTypes = UTZGNM_SHORT | UTZGNM_LOCATION; |
| break; |
| |
| default: |
| U_ASSERT(FALSE); |
| } |
| |
| int32_t len = 0; |
| const TimeZoneGenericNames *gnames = getTimeZoneGenericNames(status); |
| if (U_SUCCESS(status)) { |
| len = gnames->findBestMatch(text, startIdx, genericNameTypes, tzID, parsedTimeType, status); |
| } |
| if (U_FAILURE(status)) { |
| pos.setErrorIndex(startIdx); |
| return NULL; |
| } |
| if (len > 0) { |
| // Found a match |
| if (timeType) { |
| *timeType = parsedTimeType; |
| } |
| pos.setIndex(startIdx + len); |
| U_ASSERT(!tzID.isEmpty()); |
| return TimeZone::createTimeZone(tzID); |
| } |
| } |
| break; |
| } |
| evaluated |= STYLE_FLAG(style); |
| |
| |
| if (parsedPos > startIdx) { |
| // When the specified style is one of SPECIFIC_XXX or GENERIC_XXX, we tried to parse the input |
| // as localized GMT format earlier. If parsedOffset is positive, it means it was successfully |
| // parsed as localized GMT format, but offset digits were not detected (more specifically, GMT |
| // zero format). Then, it tried to find a match within the set of display names, but could not |
| // find a match. At this point, we can safely assume the input text contains the localized |
| // GMT format. |
| U_ASSERT(parsedOffset != UNKNOWN_OFFSET); |
| pos.setIndex(parsedPos); |
| return createTimeZoneForOffset(parsedOffset); |
| } |
| |
| // Failed to parse the input text as the time zone format in the specified style. |
| // Check the longest match among other styles below. |
| U_ASSERT(parsedPos < 0); |
| U_ASSERT(parsedOffset == UNKNOWN_OFFSET); |
| tmpPos.setIndex(startIdx); |
| tmpPos.setErrorIndex(-1); |
| |
| // ISO 8601 |
| if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_ISO8601)) == 0) { |
| UBool hasDigitOffset = FALSE; |
| offset = parseOffsetISO8601(text, tmpPos, FALSE, &hasDigitOffset); |
| if (tmpPos.getErrorIndex() == -1) { |
| if (tmpPos.getIndex() == maxPos || hasDigitOffset) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| // Note: When ISO 8601 format contains offset digits, it should not |
| // collide with other formats (except RFC 822, which is compatible with |
| // ISO 8601 basic format). However, ISO 8601 UTC format "Z" (single letter) |
| // may collide with other names. In this case, we need to evaluate other |
| // names. |
| parsedOffset = offset; |
| parsedPos = tmpPos.getIndex(); |
| U_ASSERT(parsedPos == startIdx + 1); // only when "Z" is used |
| } |
| tmpPos.setIndex(startIdx); |
| tmpPos.setErrorIndex(-1); |
| } |
| |
| // RFC 822 |
| // Note: ISO 8601 parser supports RFC 822 format. So we do not need to parse |
| // it as RFC 822 here. This might be changed in future when we support |
| // strict format option for ISO 8601 or RFC 822. |
| |
| //if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_RFC822)) == 0) { |
| // offset = parseOffsetRFC822(text, tmpPos); |
| // if (tmpPos.getErrorIndex() == -1) { |
| // pos.setIndex(tmpPos.getIndex()); |
| // return createTimeZoneForOffset(offset); |
| // } |
| // tmpPos.setIndex(startIdx); |
| // tmpPos.setErrorIndex(-1); |
| //} |
| |
| // Localized GMT format |
| if ((evaluated & STYLE_FLAG(UTZFMT_STYLE_LOCALIZED_GMT)) == 0) { |
| UBool hasDigitOffset = FALSE; |
| offset = parseOffsetLocalizedGMT(text, tmpPos, &hasDigitOffset); |
| if (tmpPos.getErrorIndex() == -1) { |
| if (tmpPos.getIndex() == maxPos || hasDigitOffset) { |
| pos.setIndex(tmpPos.getIndex()); |
| return createTimeZoneForOffset(offset); |
| } |
| // Evaluate other names - see the comment earlier in this method. |
| parsedOffset = offset; |
| parsedPos = tmpPos.getIndex(); |
| } |
| } |
| |
| // When ParseOption.ALL_STYLES is available, we also try to look all possible display names. |
| // For example, when style is GENERIC_LONG, "EST" (SPECIFIC_SHORT) is never |
| // used for America/New_York. With parseAllStyles true, this code parses "EST" |
| // as America/New_York. |
| |
| // Note: Adding all possible names into the trie used by the implementation is quite heavy operation, |
| // which we want to avoid normally (note that we cache the trie, so this is applicable to the |
| // first time only as long as the cache does not expire). |
| if (parseOptions & UTZFMT_PARSE_OPTION_ALL_STYLES) { |
| // Try all specific names first |
| LocalPointer<TimeZoneNames::MatchInfoCollection> spAllMatches(fTimeZoneNames->find(text, startIdx, ALL_SPECIFIC_NAME_TYPES, status)); |
| if (U_FAILURE(status)) { |
| pos.setErrorIndex(startIdx); |
| return NULL; |
| } |
| int32_t spMatchIdx = -1; |
| if (!spAllMatches.isNull()) { |
| int32_t matchPos = -1; |
| for (int32_t i = 0; i < spAllMatches->size(); i++) { |
| matchPos = startIdx + spAllMatches->getMatchLengthAt(i); |
| if (matchPos > parsedPos) { |
| spMatchIdx = i; |
| parsedPos = matchPos; |
| } |
| } |
| } |
| int32_t genMatchLen = -1; |
| if (parsedPos < maxPos) { |
| const TimeZoneGenericNames *gnames = getTimeZoneGenericNames(status); |
| if (U_SUCCESS(status)) { |
| genMatchLen = gnames->findBestMatch(text, startIdx, ALL_GENERIC_NAME_TYPES, tzID, parsedTimeType, status); |
| } |
| if (U_FAILURE(status)) { |
| pos.setErrorIndex(startIdx); |
| return NULL; |
| } |
| } |
| // Pick up better match |
| if (startIdx + genMatchLen > parsedPos) { |
| // use generic name match |
| parsedPos = startIdx + genMatchLen; |
| if (timeType) { |
| *timeType = parsedTimeType; |
| } |
| pos.setIndex(parsedPos); |
| U_ASSERT(!tzID.isEmpty()); |
| return TimeZone::createTimeZone(tzID); |
| } else if (spMatchIdx >= 0) { |
| // use specific name match |
| if (timeType) { |
| *timeType = getTimeType(spAllMatches->getNameTypeAt(spMatchIdx)); |
| } |
| pos.setIndex(parsedPos); |
| getTimeZoneID(spAllMatches.getAlias(), spMatchIdx, tzID); |
| U_ASSERT(!tzID.isEmpty()); |
| return TimeZone::createTimeZone(tzID); |
| } |
| } |
| |
| if (parsedPos > startIdx) { |
| // Parsed successfully as one of 'offset' format |
| U_ASSERT(parsedOffset != UNKNOWN_OFFSET); |
| pos.setIndex(parsedPos); |
| return createTimeZoneForOffset(parsedOffset); |
| } |
| |
| pos.setErrorIndex(startIdx); |
| return NULL; |
| } |
| |
| void |
| TimeZoneFormat::parseObject(const UnicodeString& source, Formattable& result, |
| ParsePosition& parse_pos) const { |
| result.adoptObject(parse(UTZFMT_STYLE_GENERIC_LOCATION, source, parse_pos, UTZFMT_PARSE_OPTION_ALL_STYLES)); |
| } |
| |
| |
| // ------------------------------------------------------------------ |
| // Private zone name format/parse implementation |
| |
| UnicodeString& |
| TimeZoneFormat::formatGeneric(const TimeZone& tz, int32_t genType, UDate date, UnicodeString& name) const { |
| UErrorCode status = U_ZERO_ERROR; |
| const TimeZoneGenericNames* gnames = getTimeZoneGenericNames(status); |
| if (U_FAILURE(status)) { |
| name.setToBogus(); |
| return name; |
| } |
| |
| if (genType == UTZGNM_LOCATION) { |
| const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(tz); |
| if (canonicalID == NULL) { |
| name.setToBogus(); |
| return name; |
| } |
| return gnames->getGenericLocationName(UnicodeString(canonicalID), name); |
| } |
| return gnames->getDisplayName(tz, (UTimeZoneGenericNameType)genType, date, name); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::formatSpecific(const TimeZone& tz, UTimeZoneNameType stdType, UTimeZoneNameType dstType, |
| UDate date, UnicodeString& name, UTimeZoneFormatTimeType *timeType) const { |
| if (fTimeZoneNames == NULL) { |
| name.setToBogus(); |
| return name; |
| } |
| |
| UErrorCode status = U_ZERO_ERROR; |
| UBool isDaylight = tz.inDaylightTime(date, status); |
| const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(tz); |
| |
| if (U_FAILURE(status) || canonicalID == NULL) { |
| name.setToBogus(); |
| return name; |
| } |
| |
| if (isDaylight) { |
| fTimeZoneNames->getDisplayName(UnicodeString(canonicalID), dstType, date, name); |
| } else { |
| fTimeZoneNames->getDisplayName(UnicodeString(canonicalID), stdType, date, name); |
| } |
| |
| if (timeType && !name.isEmpty()) { |
| *timeType = isDaylight ? UTZFMT_TIME_TYPE_DAYLIGHT : UTZFMT_TIME_TYPE_STANDARD; |
| } |
| return name; |
| } |
| |
| const TimeZoneGenericNames* |
| TimeZoneFormat::getTimeZoneGenericNames(UErrorCode& status) const { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| UBool create; |
| UMTX_CHECK(&gZoneMetaLock, (fTimeZoneGenericNames == NULL), create); |
| if (create) { |
| TimeZoneFormat *nonConstThis = const_cast<TimeZoneFormat *>(this); |
| umtx_lock(&nonConstThis->fLock); |
| { |
| if (fTimeZoneGenericNames == NULL) { |
| nonConstThis->fTimeZoneGenericNames = TimeZoneGenericNames::createInstance(fLocale, status); |
| } |
| } |
| umtx_unlock(&nonConstThis->fLock); |
| } |
| |
| return fTimeZoneGenericNames; |
| } |
| |
| // ------------------------------------------------------------------ |
| // Zone offset format and parse |
| |
| UnicodeString& |
| TimeZoneFormat::formatOffsetRFC822(int32_t offset, UnicodeString& result, UErrorCode& status) const { |
| if (U_FAILURE(status)) { |
| result.setToBogus(); |
| return result; |
| } |
| if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) { |
| result.setToBogus(); |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return result; |
| } |
| |
| // Note: FIELDS_HMS as maxFields is an ICU extension. RFC822 specification |
| // defines exactly 4 digits for the offset field in HHss format. |
| return formatOffsetWithAsciiDigits(offset, 0, FIELDS_HM, FIELDS_HMS, result); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::formatOffsetISO8601(int32_t offset, UnicodeString& result, UErrorCode& status) const { |
| if (U_FAILURE(status)) { |
| result.setToBogus(); |
| return result; |
| } |
| if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) { |
| result.setToBogus(); |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return result; |
| } |
| |
| if (offset == 0) { |
| result.setTo(ISO8601_UTC); |
| return result; |
| } |
| return formatOffsetWithAsciiDigits(offset, ISO8601_SEP, FIELDS_HM, FIELDS_HMS, result); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::formatOffsetLocalizedGMT(int32_t offset, UnicodeString& result, UErrorCode& status) const { |
| if (U_FAILURE(status)) { |
| result.setToBogus(); |
| return result; |
| } |
| if (offset <= -MAX_OFFSET || offset >= MAX_OFFSET) { |
| result.setToBogus(); |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return result; |
| } |
| |
| if (offset == 0) { |
| result.setTo(fGMTZeroFormat); |
| return result; |
| } |
| |
| UBool positive = TRUE; |
| if (offset < 0) { |
| offset = -offset; |
| positive = FALSE; |
| } |
| |
| int32_t offsetH = offset / MILLIS_PER_HOUR; |
| offset = offset % MILLIS_PER_HOUR; |
| int32_t offsetM = offset / MILLIS_PER_MINUTE; |
| offset = offset % MILLIS_PER_MINUTE; |
| int32_t offsetS = offset / MILLIS_PER_SECOND; |
| |
| U_ASSERT(offsetH <= MAX_OFFSET_HOUR && offsetM <= MAX_OFFSET_MINUTE && offsetS <= MAX_OFFSET_SECOND); |
| |
| const UVector* offsetPatternItems = NULL; |
| if (positive) { |
| offsetPatternItems = (offsetS == 0) ? |
| fGMTOffsetPatternItems[UTZFMT_PAT_POSITIVE_HM] : |
| fGMTOffsetPatternItems[UTZFMT_PAT_POSITIVE_HMS]; |
| } else { |
| offsetPatternItems = (offsetS == 0) ? |
| fGMTOffsetPatternItems[UTZFMT_PAT_NEGATIVE_HM] : |
| fGMTOffsetPatternItems[UTZFMT_PAT_NEGATIVE_HMS]; |
| } |
| |
| U_ASSERT(offsetPatternItems != NULL); |
| |
| // Building the GMT format string |
| result.setTo(fGMTPatternPrefix); |
| |
| for (int32_t i = 0; i < offsetPatternItems->size(); i++) { |
| const GMTOffsetField* item = (GMTOffsetField*)offsetPatternItems->elementAt(i); |
| GMTOffsetField::FieldType type = item->getType(); |
| |
| switch (type) { |
| case GMTOffsetField::TEXT: |
| result.append(item->getPatternText(), -1); |
| break; |
| |
| case GMTOffsetField::HOUR: |
| appendOffsetDigits(result, offsetH, item->getWidth()); |
| break; |
| |
| case GMTOffsetField::MINUTE: |
| appendOffsetDigits(result, offsetM, item->getWidth()); |
| break; |
| |
| case GMTOffsetField::SECOND: |
| appendOffsetDigits(result, offsetS, item->getWidth()); |
| break; |
| } |
| } |
| |
| result.append(fGMTPatternSuffix); |
| return result; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetRFC822(const UnicodeString& text, ParsePosition& pos) const { |
| int32_t start = pos.getIndex(); |
| if (start >= text.length()) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| int32_t sign = 1; |
| UChar signChar = text.charAt(start); |
| if (signChar == PLUS) { |
| sign = 1; |
| } else if (signChar == MINUS) { |
| sign = -1; |
| } else { |
| // Not an RFC822 offset string |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| // Parse digits |
| pos.setIndex(start + 1); |
| int32_t offset = parseAbuttingAsciiOffsetFields(text, pos, FIELDS_H, FIELDS_HMS, false); |
| |
| if (pos.getErrorIndex() != -1) { |
| pos.setIndex(start); // reset |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| return sign * offset; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos) const { |
| return parseOffsetISO8601(text, pos, FALSE); |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos) const { |
| return parseOffsetLocalizedGMT(text, pos, NULL); |
| } |
| |
| |
| |
| // ------------------------------------------------------------------ |
| // Private zone offset format/parse implementation |
| |
| int32_t |
| TimeZoneFormat::parseOffsetISO8601(const UnicodeString& text, ParsePosition& pos, UBool extendedOnly, UBool* hasDigitOffset /* = NULL */) const { |
| if (hasDigitOffset) { |
| *hasDigitOffset = FALSE; |
| } |
| int32_t start = pos.getIndex(); |
| if (start >= text.length()) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| UChar firstChar = text.charAt(start); |
| if (firstChar == ISO8601_UTC || firstChar == (UChar)(ISO8601_UTC + 0x20)) { |
| // "Z" (or "z") - indicates UTC |
| pos.setIndex(start + 1); |
| return 0; |
| } |
| |
| int32_t sign = 1; |
| if (firstChar == PLUS) { |
| sign = 1; |
| } else if (firstChar == MINUS) { |
| sign = -1; |
| } else { |
| // Not an ISO 8601 offset string |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| ParsePosition posOffset(start + 1); |
| int32_t offset = parseAsciiOffsetFields(text, posOffset, ISO8601_SEP, FIELDS_H, FIELDS_HMS, FALSE); |
| if (posOffset.getErrorIndex() == -1 && !extendedOnly && (posOffset.getIndex() - start <= 3)) { |
| // If the text is successfully parsed as extended format with the options above, it can be also parsed |
| // as basic format. For example, "0230" can be parsed as offset 2:00 (only first digits are valid for |
| // extended format), but it can be parsed as offset 2:30 with basic format. We use longer result. |
| ParsePosition posBasic(start + 1); |
| int32_t tmpOffset = parseAbuttingAsciiOffsetFields(text, posBasic, FIELDS_H, FIELDS_HMS, FALSE); |
| if (posBasic.getErrorIndex() == -1 && posBasic.getIndex() > posOffset.getIndex()) { |
| offset = tmpOffset; |
| posOffset.setIndex(posBasic.getIndex()); |
| } |
| } |
| |
| if (posOffset.getErrorIndex() != -1) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| pos.setIndex(posOffset.getIndex()); |
| if (hasDigitOffset) { |
| *hasDigitOffset = TRUE; |
| } |
| return sign * offset; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetLocalizedGMT(const UnicodeString& text, ParsePosition& pos, UBool* hasDigitOffset) const { |
| int32_t start = pos.getIndex(); |
| int32_t idx = start; |
| UBool parsed = FALSE; |
| int32_t offset = 0; |
| |
| if (hasDigitOffset) { |
| *hasDigitOffset = FALSE; |
| } |
| |
| do { |
| // Prefix part |
| int32_t len = fGMTPatternPrefix.length(); |
| if (len > 0 && text.caseCompare(idx, len, fGMTPatternPrefix, 0) != 0) { |
| // prefix match failed |
| break; |
| } |
| idx += len; |
| |
| // Offset part |
| offset = parseOffsetFields(text, idx, FALSE, len); |
| if (len == 0) { |
| // offset field match failed |
| break; |
| } |
| idx += len; |
| |
| // Suffix part |
| len = fGMTPatternSuffix.length(); |
| if (len > 0 && text.caseCompare(idx, len, fGMTPatternSuffix, 0) != 0) { |
| // no suffix match |
| break; |
| } |
| idx += len; |
| parsed = TRUE; |
| |
| } while (false); |
| |
| if (parsed) { |
| if (hasDigitOffset) { |
| *hasDigitOffset = TRUE; |
| } |
| pos.setIndex(idx); |
| return offset; |
| } |
| |
| // Try the default patterns |
| int32_t parsedLength = 0; |
| offset = parseOffsetDefaultLocalizedGMT(text, start, parsedLength); |
| if (parsedLength > 0) { |
| if (hasDigitOffset) { |
| *hasDigitOffset = TRUE; |
| } |
| pos.setIndex(start + parsedLength); |
| return offset; |
| } |
| |
| // Check if this is a GMT zero format |
| if (text.caseCompare(start, fGMTZeroFormat.length(), fGMTZeroFormat, 0) == 0) { |
| pos.setIndex(start + fGMTZeroFormat.length()); |
| return 0; |
| } |
| |
| // Check if this is a default GMT zero format |
| for (int32_t i = 0; ALT_GMT_STRINGS[i][0] != 0; i++) { |
| const UChar* defGMTZero = ALT_GMT_STRINGS[i]; |
| int32_t defGMTZeroLen = u_strlen(defGMTZero); |
| if (text.caseCompare(start, defGMTZeroLen, defGMTZero, 0) == 0) { |
| pos.setIndex(start + defGMTZeroLen); |
| return 0; |
| } |
| } |
| |
| // Nothing matched |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetFields(const UnicodeString& text, int32_t start, UBool minimumHourWidth, int32_t& parsedLen) const { |
| int32_t offset = 0; |
| UBool sawVarHourAndAbuttingField = FALSE; |
| |
| parsedLen = 0; |
| |
| for (int32_t patidx = 0; PARSE_GMT_OFFSET_TYPES[patidx] >= 0; patidx++) { |
| int32_t gmtPatType = PARSE_GMT_OFFSET_TYPES[patidx]; |
| int32_t offsetH = 0, offsetM = 0, offsetS = 0; |
| int32_t idx = start; |
| UVector* items = fGMTOffsetPatternItems[gmtPatType]; |
| U_ASSERT(items != NULL); |
| |
| UBool failed = FALSE; |
| for (int32_t i = 0; i < items->size(); i++) { |
| int32_t tmpParsedLen = 0; |
| const GMTOffsetField* field = (const GMTOffsetField*)items->elementAt(i); |
| GMTOffsetField::FieldType fieldType = field->getType(); |
| if (fieldType == GMTOffsetField::TEXT) { |
| const UChar* patStr = field->getPatternText(); |
| tmpParsedLen = u_strlen(patStr); |
| if (text.caseCompare(idx, tmpParsedLen, patStr, 0) != 0) { |
| failed = TRUE; |
| break; |
| } |
| idx += tmpParsedLen; |
| } else { |
| if (fieldType == GMTOffsetField::HOUR) { |
| uint8_t minDigits = 1; |
| uint8_t maxDigits = minimumHourWidth ? 1 : 2; |
| if (!minimumHourWidth && !sawVarHourAndAbuttingField) { |
| if (i + 1 < items->size()) { |
| const GMTOffsetField* nextField = (const GMTOffsetField*)items->elementAt(i + 1); |
| if (nextField->getType() != GMTOffsetField::TEXT) { |
| sawVarHourAndAbuttingField = true; |
| } |
| } |
| } |
| offsetH = parseOffsetFieldWithLocalizedDigits(text, idx, minDigits, maxDigits, 0, MAX_OFFSET_HOUR, tmpParsedLen); |
| } else if (fieldType == GMTOffsetField::MINUTE) { |
| offsetM = parseOffsetFieldWithLocalizedDigits(text, idx, 2, 2, 0, MAX_OFFSET_MINUTE, tmpParsedLen); |
| } else if (fieldType == GMTOffsetField::SECOND) { |
| offsetS = parseOffsetFieldWithLocalizedDigits(text, idx, 2, 2, 0, MAX_OFFSET_SECOND, tmpParsedLen); |
| } |
| |
| if (tmpParsedLen == 0) { |
| failed = TRUE; |
| break; |
| } |
| idx += tmpParsedLen; |
| } |
| } |
| if (!failed) { |
| int32_t sign = (gmtPatType == UTZFMT_PAT_POSITIVE_HM || gmtPatType == UTZFMT_PAT_POSITIVE_HMS) ? 1 : -1; |
| offset = ((((offsetH * 60) + offsetM) * 60) + offsetS) * 1000 * sign; |
| parsedLen = idx - start; |
| break; |
| } |
| } |
| |
| if (parsedLen == 0 && sawVarHourAndAbuttingField && !minimumHourWidth) { |
| // When hour field is variable width and another non-literal pattern |
| // field follows, the parse loop above might eat up the digit from |
| // the abutting field. For example, with pattern "-Hmm" and input "-100", |
| // the hour is parsed as -10 and fails to parse minute field. |
| // |
| // If this is the case, try parsing the text one more time with the arg |
| // minimumHourWidth = true |
| // |
| // Note: This fallback is not applicable when quitAtHourField is true, because |
| // the option is designed for supporting the case like "GMT+5". In this case, |
| // we should get better result for parsing hour digits as much as possible. |
| |
| return parseOffsetFields(text, start, true, parsedLen); |
| } |
| |
| return offset; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseAbuttingOffsetFields(const UnicodeString& text, int32_t start, int32_t& parsedLen) const { |
| int32_t digits[MAX_OFFSET_DIGITS]; |
| int32_t parsed[MAX_OFFSET_DIGITS]; // accumulative offsets |
| |
| // Parse digits into int[] |
| int32_t idx = start; |
| int32_t len = 0; |
| int32_t numDigits = 0; |
| for (int32_t i = 0; i < MAX_OFFSET_DIGITS; i++) { |
| digits[i] = parseSingleLocalizedDigit(text, idx, len); |
| if (digits[i] < 0) { |
| break; |
| } |
| idx += len; |
| parsed[i] = idx - start; |
| numDigits++; |
| } |
| |
| if (numDigits == 0) { |
| parsedLen = 0; |
| return 0; |
| } |
| |
| int32_t offset = 0; |
| while (numDigits > 0) { |
| int32_t hour = 0; |
| int32_t min = 0; |
| int32_t sec = 0; |
| |
| U_ASSERT(numDigits > 0 && numDigits <= MAX_OFFSET_DIGITS); |
| switch (numDigits) { |
| case 1: // H |
| hour = digits[0]; |
| break; |
| case 2: // HH |
| hour = digits[0] * 10 + digits[1]; |
| break; |
| case 3: // Hmm |
| hour = digits[0]; |
| min = digits[1] * 10 + digits[2]; |
| break; |
| case 4: // HHmm |
| hour = digits[0] * 10 + digits[1]; |
| min = digits[2] * 10 + digits[3]; |
| break; |
| case 5: // Hmmss |
| hour = digits[0]; |
| min = digits[1] * 10 + digits[2]; |
| sec = digits[3] * 10 + digits[4]; |
| break; |
| case 6: // HHmmss |
| hour = digits[0] * 10 + digits[1]; |
| min = digits[2] * 10 + digits[3]; |
| sec = digits[4] * 10 + digits[5]; |
| break; |
| } |
| if (hour <= MAX_OFFSET_HOUR && min <= MAX_OFFSET_MINUTE && sec <= MAX_OFFSET_SECOND) { |
| // found a valid combination |
| offset = hour * MILLIS_PER_HOUR + min * MILLIS_PER_MINUTE + sec * MILLIS_PER_SECOND; |
| parsedLen = parsed[numDigits - 1]; |
| break; |
| } |
| numDigits--; |
| } |
| return offset; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetDefaultLocalizedGMT(const UnicodeString& text, int start, int32_t& parsedLen) const { |
| int32_t idx = start; |
| int32_t offset = 0; |
| int32_t parsed = 0; |
| |
| do { |
| // check global default GMT alternatives |
| int32_t gmtLen = 0; |
| |
| for (int32_t i = 0; ALT_GMT_STRINGS[i][0] != 0; i++) { |
| const UChar* gmt = ALT_GMT_STRINGS[i]; |
| int32_t len = u_strlen(gmt); |
| if (text.caseCompare(start, len, gmt, 0) == 0) { |
| gmtLen = len; |
| break; |
| } |
| } |
| if (gmtLen == 0) { |
| break; |
| } |
| idx += gmtLen; |
| |
| // offset needs a sign char and a digit at minimum |
| if (idx + 1 >= text.length()) { |
| break; |
| } |
| |
| // parse sign |
| int32_t sign = 1; |
| UChar c = text.charAt(idx); |
| if (c == PLUS) { |
| sign = 1; |
| } else if (c == MINUS) { |
| sign = -1; |
| } else { |
| break; |
| } |
| idx++; |
| |
| // offset part |
| // try the default pattern with the separator first |
| int32_t lenWithSep = 0; |
| int32_t offsetWithSep = parseDefaultOffsetFields(text, idx, DEFAULT_GMT_OFFSET_SEP, lenWithSep); |
| if (lenWithSep == text.length() - idx) { |
| // maximum match |
| offset = offsetWithSep * sign; |
| idx += lenWithSep; |
| } else { |
| // try abutting field pattern |
| int32_t lenAbut = 0; |
| int32_t offsetAbut = parseAbuttingOffsetFields(text, idx, lenAbut); |
| |
| if (lenWithSep > lenAbut) { |
| offset = offsetWithSep * sign; |
| idx += lenWithSep; |
| } else { |
| offset = offsetAbut * sign; |
| idx += lenAbut; |
| } |
| } |
| parsed = idx - start; |
| } while (false); |
| |
| parsedLen = parsed; |
| return offset; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseDefaultOffsetFields(const UnicodeString& text, int32_t start, UChar separator, int32_t& parsedLen) const { |
| int32_t max = text.length(); |
| int32_t idx = start; |
| int32_t len = 0; |
| int32_t hour = 0, min = 0, sec = 0; |
| |
| parsedLen = 0; |
| |
| do { |
| hour = parseOffsetFieldWithLocalizedDigits(text, idx, 1, 2, 0, MAX_OFFSET_HOUR, len); |
| if (len == 0) { |
| break; |
| } |
| idx += len; |
| |
| if (idx + 1 < max && text.charAt(idx) == separator) { |
| min = parseOffsetFieldWithLocalizedDigits(text, idx + 1, 2, 2, 0, MAX_OFFSET_MINUTE, len); |
| if (len == 0) { |
| break; |
| } |
| idx += (1 + len); |
| |
| if (idx + 1 < max && text.charAt(idx) == separator) { |
| sec = parseOffsetFieldWithLocalizedDigits(text, idx + 1, 2, 2, 0, MAX_OFFSET_SECOND, len); |
| if (len == 0) { |
| break; |
| } |
| idx += (1 + len); |
| } |
| } |
| } while (FALSE); |
| |
| if (idx == start) { |
| return 0; |
| } |
| |
| parsedLen = idx - start; |
| return hour * MILLIS_PER_HOUR + min * MILLIS_PER_MINUTE + sec * MILLIS_PER_SECOND; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseOffsetFieldWithLocalizedDigits(const UnicodeString& text, int32_t start, uint8_t minDigits, uint8_t maxDigits, uint16_t minVal, uint16_t maxVal, int32_t& parsedLen) const { |
| parsedLen = 0; |
| |
| int32_t decVal = 0; |
| int32_t numDigits = 0; |
| int32_t idx = start; |
| int32_t digitLen = 0; |
| |
| while (idx < text.length() && numDigits < maxDigits) { |
| int32_t digit = parseSingleLocalizedDigit(text, idx, digitLen); |
| if (digit < 0) { |
| break; |
| } |
| int32_t tmpVal = decVal * 10 + digit; |
| if (tmpVal > maxVal) { |
| break; |
| } |
| decVal = tmpVal; |
| numDigits++; |
| idx += digitLen; |
| } |
| |
| // Note: maxVal is checked in the while loop |
| if (numDigits < minDigits || decVal < minVal) { |
| decVal = -1; |
| numDigits = 0; |
| } else { |
| parsedLen = idx - start; |
| } |
| |
| return decVal; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseSingleLocalizedDigit(const UnicodeString& text, int32_t start, int32_t& len) const { |
| int32_t digit = -1; |
| len = 0; |
| if (start < text.length()) { |
| UChar32 cp = text.char32At(start); |
| |
| // First, try digits configured for this instance |
| for (int32_t i = 0; i < 10; i++) { |
| if (cp == fGMTOffsetDigits[i]) { |
| digit = i; |
| break; |
| } |
| } |
| // If failed, check if this is a Unicode digit |
| if (digit < 0) { |
| int32_t tmp = u_charDigitValue(cp); |
| digit = (tmp >= 0 && tmp <= 9) ? tmp : -1; |
| } |
| |
| if (digit >= 0) { |
| int32_t next = text.moveIndex32(start, 1); |
| len = next - start; |
| } |
| } |
| return digit; |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::formatOffsetWithAsciiDigits(int32_t offset, UChar sep, OffsetFields minFields, OffsetFields maxFields, UnicodeString& result) { |
| U_ASSERT(maxFields >= minFields); |
| U_ASSERT(offset > -MAX_OFFSET && offset < MAX_OFFSET); |
| |
| UChar sign = PLUS; |
| if (offset < 0) { |
| sign = MINUS; |
| offset = -offset; |
| } |
| result.setTo(sign); |
| |
| int fields[3]; |
| fields[0] = offset / MILLIS_PER_HOUR; |
| offset = offset % MILLIS_PER_HOUR; |
| fields[1] = offset / MILLIS_PER_MINUTE; |
| offset = offset % MILLIS_PER_MINUTE; |
| fields[2] = offset / MILLIS_PER_SECOND; |
| |
| U_ASSERT(fields[0] >= 0 && fields[0] <= MAX_OFFSET_HOUR); |
| U_ASSERT(fields[1] >= 0 && fields[1] <= MAX_OFFSET_MINUTE); |
| U_ASSERT(fields[2] >= 0 && fields[2] <= MAX_OFFSET_SECOND); |
| |
| int32_t lastIdx = maxFields; |
| while (lastIdx > minFields) { |
| if (fields[lastIdx] != 0) { |
| break; |
| } |
| lastIdx--; |
| } |
| |
| for (int32_t idx = 0; idx <= lastIdx; idx++) { |
| if (sep && idx != 0) { |
| result.append(sep); |
| } |
| result.append((UChar)(0x0030 + fields[idx]/10)); |
| result.append((UChar)(0x0030 + fields[idx]%10)); |
| } |
| |
| return result; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseAbuttingAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth) { |
| int32_t start = pos.getIndex(); |
| |
| int32_t minDigits = 2 * (minFields + 1) - (fixedHourWidth ? 0 : 1); |
| int32_t maxDigits = 2 * (maxFields + 1); |
| |
| U_ASSERT(maxDigits <= MAX_OFFSET_DIGITS); |
| |
| int32_t digits[MAX_OFFSET_DIGITS] = {}; |
| int32_t numDigits = 0; |
| int32_t idx = start; |
| while (numDigits < maxDigits && idx < text.length()) { |
| UChar uch = text.charAt(idx); |
| int32_t digit = DIGIT_VAL(uch); |
| if (digit < 0) { |
| break; |
| } |
| digits[numDigits] = digit; |
| numDigits++; |
| idx++; |
| } |
| |
| if (fixedHourWidth && (numDigits & 1)) { |
| // Fixed digits, so the number of digits must be even number. Truncating. |
| numDigits--; |
| } |
| |
| if (numDigits < minDigits) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| int32_t hour = 0, min = 0, sec = 0; |
| UBool bParsed = FALSE; |
| while (numDigits >= minDigits) { |
| switch (numDigits) { |
| case 1: //H |
| hour = digits[0]; |
| break; |
| case 2: //HH |
| hour = digits[0] * 10 + digits[1]; |
| break; |
| case 3: //Hmm |
| hour = digits[0]; |
| min = digits[1] * 10 + digits[2]; |
| break; |
| case 4: //HHmm |
| hour = digits[0] * 10 + digits[1]; |
| min = digits[2] * 10 + digits[3]; |
| break; |
| case 5: //Hmmss |
| hour = digits[0]; |
| min = digits[1] * 10 + digits[2]; |
| sec = digits[3] * 10 + digits[4]; |
| break; |
| case 6: //HHmmss |
| hour = digits[0] * 10 + digits[1]; |
| min = digits[2] * 10 + digits[3]; |
| sec = digits[4] * 10 + digits[5]; |
| break; |
| } |
| |
| if (hour <= MAX_OFFSET_HOUR && min <= MAX_OFFSET_MINUTE && sec <= MAX_OFFSET_SECOND) { |
| // Successfully parsed |
| bParsed = true; |
| break; |
| } |
| |
| // Truncating |
| numDigits -= (fixedHourWidth ? 2 : 1); |
| hour = min = sec = 0; |
| } |
| |
| if (!bParsed) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| pos.setIndex(start + numDigits); |
| return ((((hour * 60) + min) * 60) + sec) * 1000; |
| } |
| |
| int32_t |
| TimeZoneFormat::parseAsciiOffsetFields(const UnicodeString& text, ParsePosition& pos, UChar sep, OffsetFields minFields, OffsetFields maxFields, UBool fixedHourWidth) { |
| int32_t start = pos.getIndex(); |
| int32_t fieldVal[] = {0, 0, 0}; |
| int32_t fieldLen[] = {0, -1, -1}; |
| for (int32_t idx = start, fieldIdx = 0; idx < text.length() && fieldIdx <= maxFields; idx++) { |
| UChar c = text.charAt(idx); |
| if (c == sep) { |
| if (fieldLen[fieldIdx] < 0) { |
| // next field - expected |
| fieldLen[fieldIdx] = 0; |
| } else if (fieldIdx == 0 && !fixedHourWidth) { |
| // 1 digit hour, move to next field |
| fieldIdx++; |
| fieldLen[fieldIdx] = 0; |
| } else { |
| // otherwise, premature field |
| break; |
| } |
| continue; |
| } |
| int32_t digit = DIGIT_VAL(c); |
| if (digit < 0) { |
| // not a digit |
| break; |
| } |
| fieldVal[fieldIdx] = fieldVal[fieldIdx] * 10 + digit; |
| fieldLen[fieldIdx]++; |
| if (fieldLen[fieldIdx] >= 2) { |
| // parsed 2 digits, move to next field |
| fieldIdx++; |
| } |
| } |
| |
| int32_t offset = 0; |
| int32_t parsedLen = 0; |
| int32_t parsedFields = -1; |
| do { |
| // hour |
| if (fieldLen[0] == 0 || (fieldLen[0] == 1 && fixedHourWidth)) { |
| break; |
| } |
| if (fieldVal[0] > MAX_OFFSET_HOUR) { |
| if (fixedHourWidth) { |
| break; |
| } |
| offset = (fieldVal[0] / 10) * MILLIS_PER_HOUR; |
| parsedFields = FIELDS_H; |
| parsedLen = 1; |
| break; |
| } |
| offset = fieldVal[0] * MILLIS_PER_HOUR; |
| parsedLen = fieldLen[0]; |
| parsedFields = FIELDS_H; |
| |
| // minute |
| if (fieldLen[1] != 2 || fieldVal[1] > MAX_OFFSET_MINUTE) { |
| break; |
| } |
| offset += fieldVal[1] * MILLIS_PER_MINUTE; |
| parsedLen += (1 + fieldLen[1]); |
| parsedFields = FIELDS_HM; |
| |
| // second |
| if (fieldLen[2] != 2 || fieldVal[2] > MAX_OFFSET_SECOND) { |
| break; |
| } |
| offset += fieldVal[2] * MILLIS_PER_SECOND; |
| parsedLen += (1 + fieldLen[2]); |
| parsedFields = FIELDS_HMS; |
| } while (false); |
| |
| if (parsedFields < minFields) { |
| pos.setErrorIndex(start); |
| return 0; |
| } |
| |
| pos.setIndex(start + parsedLen); |
| return offset; |
| } |
| |
| void |
| TimeZoneFormat::appendOffsetDigits(UnicodeString& buf, int32_t n, uint8_t minDigits) const { |
| U_ASSERT(n >= 0 && n < 60); |
| int32_t numDigits = n >= 10 ? 2 : 1; |
| for (int32_t i = 0; i < minDigits - numDigits; i++) { |
| buf.append(fGMTOffsetDigits[0]); |
| } |
| if (numDigits == 2) { |
| buf.append(fGMTOffsetDigits[n / 10]); |
| } |
| buf.append(fGMTOffsetDigits[n % 10]); |
| } |
| |
| // ------------------------------------------------------------------ |
| // Private misc |
| void |
| TimeZoneFormat::initGMTPattern(const UnicodeString& gmtPattern, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return; |
| } |
| // This implementation not perfect, but sufficient practically. |
| int32_t idx = gmtPattern.indexOf(ARG0, ARG0_LEN, 0); |
| if (idx < 0) { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| return; |
| } |
| fGMTPattern.setTo(gmtPattern); |
| unquote(gmtPattern.tempSubString(0, idx), fGMTPatternPrefix); |
| unquote(gmtPattern.tempSubString(idx + ARG0_LEN), fGMTPatternSuffix); |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::unquote(const UnicodeString& pattern, UnicodeString& result) { |
| if (pattern.indexOf(SINGLEQUOTE) < 0) { |
| result.setTo(pattern); |
| return result; |
| } |
| result.remove(); |
| UBool isPrevQuote = FALSE; |
| UBool inQuote = FALSE; |
| for (int32_t i = 0; i < pattern.length(); i++) { |
| UChar c = pattern.charAt(i); |
| if (c == SINGLEQUOTE) { |
| if (isPrevQuote) { |
| result.append(c); |
| isPrevQuote = FALSE; |
| } else { |
| isPrevQuote = TRUE; |
| } |
| inQuote = !inQuote; |
| } else { |
| isPrevQuote = FALSE; |
| result.append(c); |
| } |
| } |
| return result; |
| } |
| |
| UVector* |
| TimeZoneFormat::parseOffsetPattern(const UnicodeString& pattern, OffsetFields required, UErrorCode& status) { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| UVector* result = new UVector(deleteGMTOffsetField, NULL, status); |
| if (result == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| |
| int32_t checkBits = 0; |
| UBool isPrevQuote = FALSE; |
| UBool inQuote = FALSE; |
| UnicodeString text; |
| GMTOffsetField::FieldType itemType = GMTOffsetField::TEXT; |
| int32_t itemLength = 1; |
| |
| for (int32_t i = 0; i < pattern.length(); i++) { |
| UChar ch = pattern.charAt(i); |
| if (ch == SINGLEQUOTE) { |
| if (isPrevQuote) { |
| text.append(SINGLEQUOTE); |
| isPrevQuote = FALSE; |
| } else { |
| isPrevQuote = TRUE; |
| if (itemType != GMTOffsetField::TEXT) { |
| if (GMTOffsetField::isValid(itemType, itemLength)) { |
| GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, (uint8_t)itemLength, status); |
| result->addElement(fld, status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| } else { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| break; |
| } |
| itemType = GMTOffsetField::TEXT; |
| } |
| } |
| inQuote = !inQuote; |
| } else { |
| isPrevQuote = FALSE; |
| if (inQuote) { |
| text.append(ch); |
| } else { |
| GMTOffsetField::FieldType tmpType = GMTOffsetField::getTypeByLetter(ch); |
| if (tmpType != GMTOffsetField::TEXT) { |
| // an offset time pattern character |
| if (tmpType == itemType) { |
| itemLength++; |
| } else { |
| if (itemType == GMTOffsetField::TEXT) { |
| if (text.length() > 0) { |
| GMTOffsetField* textfld = GMTOffsetField::createText(text, status); |
| result->addElement(textfld, status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| text.remove(); |
| } |
| } else { |
| if (GMTOffsetField::isValid(itemType, itemLength)) { |
| GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status); |
| result->addElement(fld, status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| } else { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| break; |
| } |
| } |
| itemType = tmpType; |
| itemLength = 1; |
| checkBits |= tmpType; |
| } |
| } else { |
| // a string literal |
| if (itemType != GMTOffsetField::TEXT) { |
| if (GMTOffsetField::isValid(itemType, itemLength)) { |
| GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status); |
| result->addElement(fld, status); |
| if (U_FAILURE(status)) { |
| break; |
| } |
| } else { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| break; |
| } |
| itemType = GMTOffsetField::TEXT; |
| } |
| text.append(ch); |
| } |
| } |
| } |
| } |
| // handle last item |
| if (U_SUCCESS(status)) { |
| if (itemType == GMTOffsetField::TEXT) { |
| if (text.length() > 0) { |
| GMTOffsetField* tfld = GMTOffsetField::createText(text, status); |
| result->addElement(tfld, status); |
| } |
| } else { |
| if (GMTOffsetField::isValid(itemType, itemLength)) { |
| GMTOffsetField* fld = GMTOffsetField::createTimeField(itemType, itemLength, status); |
| result->addElement(fld, status); |
| } else { |
| status = U_ILLEGAL_ARGUMENT_ERROR; |
| } |
| } |
| |
| // Check all required fields are set |
| if (U_SUCCESS(status)) { |
| int32_t reqBits = 0; |
| switch (required) { |
| case FIELDS_H: |
| reqBits = GMTOffsetField::HOUR; |
| break; |
| case FIELDS_HM: |
| reqBits = GMTOffsetField::HOUR | GMTOffsetField::MINUTE; |
| break; |
| case FIELDS_HMS: |
| reqBits = GMTOffsetField::HOUR | GMTOffsetField::MINUTE | GMTOffsetField::SECOND; |
| break; |
| } |
| if (checkBits == reqBits) { |
| // all required fields are set, no extra fields |
| return result; |
| } |
| } |
| } |
| |
| // error |
| delete result; |
| return NULL; |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::expandOffsetPattern(const UnicodeString& offsetHM, UnicodeString& result) { |
| U_ASSERT(u_strlen(DEFAULT_GMT_OFFSET_MINUTE_PATTERN) == 2); |
| |
| int32_t idx_mm = offsetHM.indexOf(DEFAULT_GMT_OFFSET_MINUTE_PATTERN, 2, 0); |
| if (idx_mm < 0) { |
| // we cannot do anything with this... |
| result.setTo(offsetHM); |
| result.append(DEFAULT_GMT_OFFSET_SEP); |
| result.append(DEFAULT_GMT_OFFSET_SECOND_PATTERN, -1); |
| return result; |
| } |
| |
| UnicodeString sep; |
| int32_t idx_H = offsetHM.tempSubString(0, idx_mm).lastIndexOf(0x0048 /* H */); |
| if (idx_H >= 0) { |
| sep = offsetHM.tempSubString(idx_H + 1, idx_mm - (idx_H + 1)); |
| } |
| result.setTo(offsetHM.tempSubString(0, idx_mm + 2)); |
| result.append(sep); |
| result.append(DEFAULT_GMT_OFFSET_SECOND_PATTERN, -1); |
| result.append(offsetHM.tempSubString(idx_mm + 2)); |
| return result; |
| } |
| |
| void |
| TimeZoneFormat::initGMTOffsetPatterns(UErrorCode& status) { |
| for (int32_t type = 0; type <= UTZFMT_PAT_NEGATIVE_HMS; type++) { |
| switch (type) { |
| case UTZFMT_PAT_POSITIVE_HM: |
| case UTZFMT_PAT_NEGATIVE_HM: |
| fGMTOffsetPatternItems[type] = parseOffsetPattern(fGMTOffsetPatterns[type], FIELDS_HM, status); |
| break; |
| case UTZFMT_PAT_POSITIVE_HMS: |
| case UTZFMT_PAT_NEGATIVE_HMS: |
| fGMTOffsetPatternItems[type] = parseOffsetPattern(fGMTOffsetPatterns[type], FIELDS_HMS, status); |
| break; |
| } |
| } |
| } |
| |
| UBool |
| TimeZoneFormat::toCodePoints(const UnicodeString& str, UChar32* codeArray, int32_t size) { |
| int32_t count = str.countChar32(); |
| if (count != size) { |
| return FALSE; |
| } |
| |
| for (int32_t idx = 0, start = 0; idx < size; idx++) { |
| codeArray[idx] = str.char32At(start); |
| start = str.moveIndex32(start, 1); |
| } |
| |
| return TRUE; |
| } |
| |
| TimeZone* |
| TimeZoneFormat::createTimeZoneForOffset(int32_t offset) const { |
| if (offset == 0) { |
| // when offset is 0, we should use "Etc/GMT" |
| return TimeZone::createTimeZone(UnicodeString(TZID_GMT)); |
| } |
| return ZoneMeta::createCustomTimeZone(offset); |
| } |
| |
| UTimeZoneFormatTimeType |
| TimeZoneFormat::getTimeType(UTimeZoneNameType nameType) { |
| switch (nameType) { |
| case UTZNM_LONG_STANDARD: |
| case UTZNM_SHORT_STANDARD: |
| return UTZFMT_TIME_TYPE_STANDARD; |
| |
| case UTZNM_LONG_DAYLIGHT: |
| case UTZNM_SHORT_DAYLIGHT: |
| return UTZFMT_TIME_TYPE_DAYLIGHT; |
| |
| default: |
| U_ASSERT(FALSE); |
| } |
| return UTZFMT_TIME_TYPE_UNKNOWN; |
| } |
| |
| UnicodeString& |
| TimeZoneFormat::getTimeZoneID(const TimeZoneNames::MatchInfoCollection* matches, int32_t idx, UnicodeString& tzID) const { |
| if (!matches->getTimeZoneIDAt(idx, tzID)) { |
| UnicodeString mzID; |
| if (matches->getMetaZoneIDAt(idx, mzID)) { |
| fTimeZoneNames->getReferenceZoneID(mzID, fTargetRegion, tzID); |
| } |
| } |
| return tzID; |
| } |
| |
| U_NAMESPACE_END |
| |
| #endif |
