/* ******************************************************************************* * Copyright (C) 1997-2007, International Business Machines Corporation and * * others. All Rights Reserved. * ******************************************************************************* * * File SMPDTFMT.CPP * * Modification History: * * Date Name Description * 02/19/97 aliu Converted from java. * 03/31/97 aliu Modified extensively to work with 50 locales. * 04/01/97 aliu Added support for centuries. * 07/09/97 helena Made ParsePosition into a class. * 07/21/98 stephen Added initializeDefaultCentury. * Removed getZoneIndex (added in DateFormatSymbols) * Removed subParseLong * Removed chk * 02/22/99 stephen Removed character literals for EBCDIC safety * 10/14/99 aliu Updated 2-digit year parsing so that only "00" thru * "99" are recognized. {j28 4182066} * 11/15/99 weiv Added support for week of year/day of week format ******************************************************************************** */ #define ZID_KEY_MAX 128 #include "unicode/utypes.h" #if !UCONFIG_NO_FORMATTING #include "unicode/smpdtfmt.h" #include "unicode/dtfmtsym.h" #include "unicode/ures.h" #include "unicode/msgfmt.h" #include "unicode/calendar.h" #include "unicode/gregocal.h" #include "unicode/timezone.h" #include "unicode/decimfmt.h" #include "unicode/dcfmtsym.h" #include "unicode/uchar.h" #include "unicode/ustring.h" #include "unicode/basictz.h" #include "unicode/simpletz.h" #include "unicode/rbtz.h" #include "unicode/vtzone.h" #include "olsontz.h" #include "../common/util.h" #include "gregoimp.h" #include "cstring.h" #include "uassert.h" #include "zstrfmt.h" #include "cmemory.h" #include "umutex.h" #include #if defined( U_DEBUG_CALSVC ) || defined (U_DEBUG_CAL) #include #endif // ***************************************************************************** // class SimpleDateFormat // ***************************************************************************** U_NAMESPACE_BEGIN /** * Last-resort string to use for "GMT" when constructing time zone strings. */ // For time zones that have no names, use strings GMT+minutes and // GMT-minutes. For instance, in France the time zone is GMT+60. // Also accepted are GMT+H:MM or GMT-H:MM. static const UChar gGmt[] = {0x0047, 0x004D, 0x0054, 0x0000}; // "GMT" static const UChar gGmtPlus[] = {0x0047, 0x004D, 0x0054, 0x002B, 0x0000}; // "GMT+" static const UChar gGmtMinus[] = {0x0047, 0x004D, 0x0054, 0x002D, 0x0000}; // "GMT-" static const UChar gDefGmtPat[] = {0x0047, 0x004D, 0x0054, 0x007B, 0x0030, 0x007D, 0x0000}; /* GMT{0} */ static const UChar gDefGmtNegHmsPat[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0x0000}; /* -HH:mm:ss */ static const UChar gDefGmtNegHmPat[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x0000}; /* -HH:mm */ static const UChar gDefGmtPosHmsPat[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0x0000}; /* +HH:mm:ss */ static const UChar gDefGmtPosHmPat[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x0000}; /* +HH:mm */ typedef enum GmtPatSize { kGmtLen = 3, kGmtPatLen = 6, kNegHmsLen = 9, kNegHmLen = 6, kPosHmsLen = 9, kPosHmLen = 6 } GmtPatSize; // This is a pattern-of-last-resort used when we can't load a usable pattern out // of a resource. static const UChar gDefaultPattern[] = { 0x79, 0x79, 0x79, 0x79, 0x4D, 0x4D, 0x64, 0x64, 0x20, 0x68, 0x68, 0x3A, 0x6D, 0x6D, 0x20, 0x61, 0 }; /* "yyyyMMdd hh:mm a" */ // This prefix is designed to NEVER MATCH real text, in order to // suppress the parsing of negative numbers. Adjust as needed (if // this becomes valid Unicode). static const UChar SUPPRESS_NEGATIVE_PREFIX[] = {0xAB00, 0}; /** * These are the tags we expect to see in normal resource bundle files associated * with a locale. */ static const char gDateTimePatternsTag[]="DateTimePatterns"; static const UChar gEtcUTC[] = {0x45, 0x74, 0x63, 0x2F, 0x55, 0x54, 0x43, 0x00}; // "Etc/UTC" static const UChar QUOTE = 0x27; // Single quote enum { kGMTNegativeHMS = 0, kGMTNegativeHM, kGMTPositiveHMS, kGMTPositiveHM, kNumGMTFormatters }; static UMTX LOCK; UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SimpleDateFormat) //---------------------------------------------------------------------- SimpleDateFormat::~SimpleDateFormat() { delete fSymbols; if (fGMTFormatters) { for (int32_t i = 0; i < kNumGMTFormatters; i++) { if (fGMTFormatters[i]) { delete fGMTFormatters[i]; } } uprv_free(fGMTFormatters); } } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(UErrorCode& status) : fLocale(Locale::getDefault()), fSymbols(NULL), fGMTFormatters(NULL) { construct(kShort, (EStyle) (kShort + kDateOffset), fLocale, status); initializeDefaultCentury(); } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern, UErrorCode &status) : fPattern(pattern), fLocale(Locale::getDefault()), fSymbols(NULL), fGMTFormatters(NULL) { initializeSymbols(fLocale, initializeCalendar(NULL,fLocale,status), status); initialize(fLocale, status); initializeDefaultCentury(); } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern, const Locale& locale, UErrorCode& status) : fPattern(pattern), fLocale(locale), fGMTFormatters(NULL) { initializeSymbols(fLocale, initializeCalendar(NULL,fLocale,status), status); initialize(fLocale, status); initializeDefaultCentury(); } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern, DateFormatSymbols* symbolsToAdopt, UErrorCode& status) : fPattern(pattern), fLocale(Locale::getDefault()), fSymbols(symbolsToAdopt), fGMTFormatters(NULL) { initializeCalendar(NULL,fLocale,status); initialize(fLocale, status); initializeDefaultCentury(); } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern, const DateFormatSymbols& symbols, UErrorCode& status) : fPattern(pattern), fLocale(Locale::getDefault()), fSymbols(new DateFormatSymbols(symbols)), fGMTFormatters(NULL) { initializeCalendar(NULL, fLocale, status); initialize(fLocale, status); initializeDefaultCentury(); } //---------------------------------------------------------------------- // Not for public consumption; used by DateFormat SimpleDateFormat::SimpleDateFormat(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status) : fLocale(locale), fSymbols(NULL), fGMTFormatters(NULL) { construct(timeStyle, dateStyle, fLocale, status); if(U_SUCCESS(status)) { initializeDefaultCentury(); } } //---------------------------------------------------------------------- /** * Not for public consumption; used by DateFormat. This constructor * never fails. If the resource data is not available, it uses the * the last resort symbols. */ SimpleDateFormat::SimpleDateFormat(const Locale& locale, UErrorCode& status) : fPattern(gDefaultPattern), fLocale(locale), fSymbols(NULL), fGMTFormatters(NULL) { if (U_FAILURE(status)) return; initializeSymbols(fLocale, initializeCalendar(NULL, fLocale, status),status); if (U_FAILURE(status)) { status = U_ZERO_ERROR; delete fSymbols; // This constructor doesn't fail; it uses last resort data fSymbols = new DateFormatSymbols(status); /* test for NULL */ if (fSymbols == 0) { status = U_MEMORY_ALLOCATION_ERROR; return; } } initialize(fLocale, status); if(U_SUCCESS(status)) { initializeDefaultCentury(); } } //---------------------------------------------------------------------- SimpleDateFormat::SimpleDateFormat(const SimpleDateFormat& other) : DateFormat(other), fSymbols(NULL), fGMTFormatters(NULL) { *this = other; } //---------------------------------------------------------------------- SimpleDateFormat& SimpleDateFormat::operator=(const SimpleDateFormat& other) { if (this == &other) { return *this; } DateFormat::operator=(other); delete fSymbols; fSymbols = NULL; if (other.fSymbols) fSymbols = new DateFormatSymbols(*other.fSymbols); fDefaultCenturyStart = other.fDefaultCenturyStart; fDefaultCenturyStartYear = other.fDefaultCenturyStartYear; fHaveDefaultCentury = other.fHaveDefaultCentury; fPattern = other.fPattern; return *this; } //---------------------------------------------------------------------- Format* SimpleDateFormat::clone() const { return new SimpleDateFormat(*this); } //---------------------------------------------------------------------- UBool SimpleDateFormat::operator==(const Format& other) const { if (DateFormat::operator==(other)) { // DateFormat::operator== guarantees following cast is safe SimpleDateFormat* that = (SimpleDateFormat*)&other; return (fPattern == that->fPattern && fSymbols != NULL && // Check for pathological object that->fSymbols != NULL && // Check for pathological object *fSymbols == *that->fSymbols && fHaveDefaultCentury == that->fHaveDefaultCentury && fDefaultCenturyStart == that->fDefaultCenturyStart); } return FALSE; } //---------------------------------------------------------------------- void SimpleDateFormat::construct(EStyle timeStyle, EStyle dateStyle, const Locale& locale, UErrorCode& status) { // called by several constructors to load pattern data from the resources if (U_FAILURE(status)) return; // We will need the calendar to know what type of symbols to load. initializeCalendar(NULL, locale, status); if (U_FAILURE(status)) return; CalendarData calData(locale, fCalendar?fCalendar->getType():NULL, status); UResourceBundle *dateTimePatterns = calData.getByKey(gDateTimePatternsTag, status); if (U_FAILURE(status)) return; if (ures_getSize(dateTimePatterns) <= kDateTime) { status = U_INVALID_FORMAT_ERROR; return; } setLocaleIDs(ures_getLocaleByType(dateTimePatterns, ULOC_VALID_LOCALE, &status), ures_getLocaleByType(dateTimePatterns, ULOC_ACTUAL_LOCALE, &status)); // create a symbols object from the locale initializeSymbols(locale,fCalendar, status); if (U_FAILURE(status)) return; /* test for NULL */ if (fSymbols == 0) { status = U_MEMORY_ALLOCATION_ERROR; return; } const UChar *resStr; int32_t resStrLen = 0; // if the pattern should include both date and time information, use the date/time // pattern string as a guide to tell use how to glue together the appropriate date // and time pattern strings. The actual gluing-together is handled by a convenience // method on MessageFormat. if ((timeStyle != kNone) && (dateStyle != kNone)) { Formattable timeDateArray[2]; // use Formattable::adoptString() so that we can use fastCopyFrom() // instead of Formattable::setString()'s unaware, safe, deep string clone // see Jitterbug 2296 resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)timeStyle, &resStrLen, &status); timeDateArray[0].adoptString(new UnicodeString(TRUE, resStr, resStrLen)); resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)dateStyle, &resStrLen, &status); timeDateArray[1].adoptString(new UnicodeString(TRUE, resStr, resStrLen)); resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)kDateTime, &resStrLen, &status); MessageFormat::format(UnicodeString(TRUE, resStr, resStrLen), timeDateArray, 2, fPattern, status); } // if the pattern includes just time data or just date date, load the appropriate // pattern string from the resources // setTo() - see DateFormatSymbols::assignArray comments else if (timeStyle != kNone) { resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)timeStyle, &resStrLen, &status); fPattern.setTo(TRUE, resStr, resStrLen); } else if (dateStyle != kNone) { resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)dateStyle, &resStrLen, &status); fPattern.setTo(TRUE, resStr, resStrLen); } // and if it includes _neither_, that's an error else status = U_INVALID_FORMAT_ERROR; // finally, finish initializing by creating a Calendar and a NumberFormat initialize(locale, status); } //---------------------------------------------------------------------- Calendar* SimpleDateFormat::initializeCalendar(TimeZone* adoptZone, const Locale& locale, UErrorCode& status) { if(!U_FAILURE(status)) { fCalendar = Calendar::createInstance(adoptZone?adoptZone:TimeZone::createDefault(), locale, status); } if (U_SUCCESS(status) && fCalendar == NULL) { status = U_MEMORY_ALLOCATION_ERROR; } return fCalendar; } void SimpleDateFormat::initializeSymbols(const Locale& locale, Calendar* calendar, UErrorCode& status) { if(U_FAILURE(status)) { fSymbols = NULL; } else { // pass in calendar type - use NULL (default) if no calendar set (or err). fSymbols = new DateFormatSymbols(locale, calendar?calendar->getType() :NULL , status); } } void SimpleDateFormat::initialize(const Locale& locale, UErrorCode& status) { if (U_FAILURE(status)) return; // We don't need to check that the row count is >= 1, since all 2d arrays have at // least one row fNumberFormat = NumberFormat::createInstance(locale, status); if (fNumberFormat != NULL && U_SUCCESS(status)) { // no matter what the locale's default number format looked like, we want // to modify it so that it doesn't use thousands separators, doesn't always // show the decimal point, and recognizes integers only when parsing fNumberFormat->setGroupingUsed(FALSE); if (fNumberFormat->getDynamicClassID() == DecimalFormat::getStaticClassID()) ((DecimalFormat*)fNumberFormat)->setDecimalSeparatorAlwaysShown(FALSE); fNumberFormat->setParseIntegerOnly(TRUE); fNumberFormat->setMinimumFractionDigits(0); // To prevent "Jan 1.00, 1997.00" } else if (U_SUCCESS(status)) { status = U_MISSING_RESOURCE_ERROR; } } /* Initialize the fields we use to disambiguate ambiguous years. Separate * so we can call it from readObject(). */ void SimpleDateFormat::initializeDefaultCentury() { if(fCalendar) { fHaveDefaultCentury = fCalendar->haveDefaultCentury(); if(fHaveDefaultCentury) { fDefaultCenturyStart = fCalendar->defaultCenturyStart(); fDefaultCenturyStartYear = fCalendar->defaultCenturyStartYear(); } else { fDefaultCenturyStart = DBL_MIN; fDefaultCenturyStartYear = -1; } } } /* Define one-century window into which to disambiguate dates using * two-digit years. Make public in JDK 1.2. */ void SimpleDateFormat::parseAmbiguousDatesAsAfter(UDate startDate, UErrorCode& status) { if(U_FAILURE(status)) { return; } if(!fCalendar) { status = U_ILLEGAL_ARGUMENT_ERROR; return; } fCalendar->setTime(startDate, status); if(U_SUCCESS(status)) { fHaveDefaultCentury = TRUE; fDefaultCenturyStart = startDate; fDefaultCenturyStartYear = fCalendar->get(UCAL_YEAR, status); } } //---------------------------------------------------------------------- UnicodeString& SimpleDateFormat::format(Calendar& cal, UnicodeString& appendTo, FieldPosition& pos) const { UErrorCode status = U_ZERO_ERROR; pos.setBeginIndex(0); pos.setEndIndex(0); UBool inQuote = FALSE; UChar prevCh = 0; int32_t count = 0; // loop through the pattern string character by character for (int32_t i = 0; i < fPattern.length() && U_SUCCESS(status); ++i) { UChar ch = fPattern[i]; // Use subFormat() to format a repeated pattern character // when a different pattern or non-pattern character is seen if (ch != prevCh && count > 0) { subFormat(appendTo, prevCh, count, pos, cal, status); count = 0; } if (ch == QUOTE) { // Consecutive single quotes are a single quote literal, // either outside of quotes or between quotes if ((i+1) < fPattern.length() && fPattern[i+1] == QUOTE) { appendTo += (UChar)QUOTE; ++i; } else { inQuote = ! inQuote; } } else if ( ! inQuote && ((ch >= 0x0061 /*'a'*/ && ch <= 0x007A /*'z'*/) || (ch >= 0x0041 /*'A'*/ && ch <= 0x005A /*'Z'*/))) { // ch is a date-time pattern character to be interpreted // by subFormat(); count the number of times it is repeated prevCh = ch; ++count; } else { // Append quoted characters and unquoted non-pattern characters appendTo += ch; } } // Format the last item in the pattern, if any if (count > 0) { subFormat(appendTo, prevCh, count, pos, cal, status); } // and if something failed (e.g., an invalid format character), reset our FieldPosition // to (0, 0) to show that // {sfb} look at this later- are these being set correctly? if (U_FAILURE(status)) { pos.setBeginIndex(0); pos.setEndIndex(0); } return appendTo; } UnicodeString& SimpleDateFormat::format(const Formattable& obj, UnicodeString& appendTo, FieldPosition& pos, UErrorCode& status) const { // this is just here to get around the hiding problem // (the previous format() override would hide the version of // format() on DateFormat that this function correspond to, so we // have to redefine it here) return DateFormat::format(obj, appendTo, pos, status); } //---------------------------------------------------------------------- // Map index into pattern character string to Calendar field number. const UCalendarDateFields SimpleDateFormat::fgPatternIndexToCalendarField[] = { /*GyM*/ UCAL_ERA, UCAL_YEAR, UCAL_MONTH, /*dkH*/ UCAL_DATE, UCAL_HOUR_OF_DAY, UCAL_HOUR_OF_DAY, /*msS*/ UCAL_MINUTE, UCAL_SECOND, UCAL_MILLISECOND, /*EDF*/ UCAL_DAY_OF_WEEK, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK_IN_MONTH, /*wWa*/ UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_AM_PM, /*hKz*/ UCAL_HOUR, UCAL_HOUR, UCAL_ZONE_OFFSET, /*Yeu*/ UCAL_YEAR_WOY, UCAL_DOW_LOCAL, UCAL_EXTENDED_YEAR, /*gAZ*/ UCAL_JULIAN_DAY, UCAL_MILLISECONDS_IN_DAY, UCAL_ZONE_OFFSET, /*v*/ UCAL_ZONE_OFFSET, /*c*/ UCAL_DAY_OF_WEEK, /*L*/ UCAL_MONTH, /*Q*/ UCAL_MONTH, /*q*/ UCAL_MONTH, /*V*/ UCAL_ZONE_OFFSET, }; // Map index into pattern character string to DateFormat field number const UDateFormatField SimpleDateFormat::fgPatternIndexToDateFormatField[] = { /*GyM*/ UDAT_ERA_FIELD, UDAT_YEAR_FIELD, UDAT_MONTH_FIELD, /*dkH*/ UDAT_DATE_FIELD, UDAT_HOUR_OF_DAY1_FIELD, UDAT_HOUR_OF_DAY0_FIELD, /*msS*/ UDAT_MINUTE_FIELD, UDAT_SECOND_FIELD, UDAT_FRACTIONAL_SECOND_FIELD, /*EDF*/ UDAT_DAY_OF_WEEK_FIELD, UDAT_DAY_OF_YEAR_FIELD, UDAT_DAY_OF_WEEK_IN_MONTH_FIELD, /*wWa*/ UDAT_WEEK_OF_YEAR_FIELD, UDAT_WEEK_OF_MONTH_FIELD, UDAT_AM_PM_FIELD, /*hKz*/ UDAT_HOUR1_FIELD, UDAT_HOUR0_FIELD, UDAT_TIMEZONE_FIELD, /*Yeu*/ UDAT_YEAR_WOY_FIELD, UDAT_DOW_LOCAL_FIELD, UDAT_EXTENDED_YEAR_FIELD, /*gAZ*/ UDAT_JULIAN_DAY_FIELD, UDAT_MILLISECONDS_IN_DAY_FIELD, UDAT_TIMEZONE_RFC_FIELD, /*v*/ UDAT_TIMEZONE_GENERIC_FIELD, /*c*/ UDAT_STANDALONE_DAY_FIELD, /*L*/ UDAT_STANDALONE_MONTH_FIELD, /*Q*/ UDAT_QUARTER_FIELD, /*q*/ UDAT_STANDALONE_QUARTER_FIELD, /*V*/ UDAT_TIMEZONE_SPECIAL_FIELD, }; //---------------------------------------------------------------------- /** * Append symbols[value] to dst. Make sure the array index is not out * of bounds. */ static inline void _appendSymbol(UnicodeString& dst, int32_t value, const UnicodeString* symbols, int32_t symbolsCount) { U_ASSERT(0 <= value && value < symbolsCount); if (0 <= value && value < symbolsCount) { dst += symbols[value]; } } //--------------------------------------------------------------------- void SimpleDateFormat::appendGMT(UnicodeString &appendTo, Calendar& cal, UErrorCode& status) const{ int32_t offset = cal.get(UCAL_ZONE_OFFSET, status) + cal.get(UCAL_DST_OFFSET, status); if (U_FAILURE(status)) { return; } if (isDefaultGMTFormat()) { formatGMTDefault(appendTo, offset); } else { ((SimpleDateFormat*)this)->initGMTFormatters(status); if (U_SUCCESS(status)) { int32_t type; if (offset < 0) { offset = -offset; type = (offset % U_MILLIS_PER_MINUTE) == 0 ? kGMTNegativeHM : kGMTNegativeHMS; } else { type = (offset % U_MILLIS_PER_MINUTE) == 0 ? kGMTPositiveHM : kGMTPositiveHMS; } Formattable param(offset, Formattable::kIsDate); FieldPosition fpos(0); fGMTFormatters[type]->format(¶m, 1, appendTo, fpos, status); } } } int32_t SimpleDateFormat::parseGMT(const UnicodeString &text, ParsePosition &pos) const { if (!isDefaultGMTFormat()) { int32_t start = pos.getIndex(); // Quick check UBool prefixMatch = FALSE; int32_t prefixLen = fSymbols->fGmtFormat.indexOf((UChar)0x007B /* '{' */); if (prefixLen > 0 && text.compare(start, prefixLen, fSymbols->fGmtFormat, 0, prefixLen) == 0) { prefixMatch = TRUE; } if (prefixMatch) { // Prefix matched UErrorCode status = U_ZERO_ERROR; ((SimpleDateFormat*)this)->initGMTFormatters(status); if (U_SUCCESS(status)) { Formattable parsed; int32_t parsedCount; // Try negative Hms fGMTFormatters[kGMTNegativeHMS]->parseObject(text, parsed, pos); if (pos.getErrorIndex() == -1 && pos.getIndex() > start) { parsed.getArray(parsedCount); if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) { return (int32_t)(-1 * parsed[0].getDate()); } } // Reset ParsePosition pos.setIndex(start); pos.setErrorIndex(-1); // Try positive Hms fGMTFormatters[kGMTPositiveHMS]->parseObject(text, parsed, pos); if (pos.getErrorIndex() == -1 && pos.getIndex() > start) { parsed.getArray(parsedCount); if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) { return (int32_t)parsed[0].getDate(); } } // Reset ParsePosition pos.setIndex(start); pos.setErrorIndex(-1); // Try negative Hm fGMTFormatters[kGMTNegativeHM]->parseObject(text, parsed, pos); if (pos.getErrorIndex() == -1 && pos.getIndex() > start) { parsed.getArray(parsedCount); if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) { return (int32_t)(-1 * parsed[0].getDate()); } } // Reset ParsePosition pos.setIndex(start); pos.setErrorIndex(-1); // Try positive Hm fGMTFormatters[kGMTPositiveHM]->parseObject(text, parsed, pos); if (pos.getErrorIndex() == -1 && pos.getIndex() > start) { parsed.getArray(parsedCount); if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) { return (int32_t)parsed[0].getDate(); } } // Reset ParsePosition pos.setIndex(start); pos.setErrorIndex(-1); } // fall through to the default GMT parsing method } } return parseGMTDefault(text, pos); } void SimpleDateFormat::formatGMTDefault(UnicodeString &appendTo, int32_t offset) const { if (offset < 0) { appendTo += gGmtMinus; offset = -offset; // suppress the '-' sign for text display. }else{ appendTo += gGmtPlus; } offset /= U_MILLIS_PER_SECOND; // now in seconds int32_t sec = offset % 60; offset /= 60; int32_t min = offset % 60; int32_t hour = offset / 60; zeroPaddingNumber(appendTo, hour, 2, 2); appendTo += (UChar)0x003A /*':'*/; zeroPaddingNumber(appendTo, min, 2, 2); if (sec != 0) { appendTo += (UChar)0x003A /*':'*/; zeroPaddingNumber(appendTo, sec, 2, 2); } } int32_t SimpleDateFormat::parseGMTDefault(const UnicodeString &text, ParsePosition &pos) const { int32_t start = pos.getIndex(); if (start + kGmtLen + 1 >= text.length()) { pos.setErrorIndex(start); return 0; } int32_t cur = start; // "GMT" if (text.compare(start, kGmtLen, gGmt) != 0) { pos.setErrorIndex(start); return 0; } cur += kGmtLen; // Sign UBool negative = FALSE; if (text.charAt(cur) == (UChar)0x002D /* minus */) { negative = TRUE; } else if (text.charAt(cur) != (UChar)0x002B /* plus */) { pos.setErrorIndex(cur); return 0; } cur++; // Numbers int32_t numLen; pos.setIndex(cur); Formattable number; parseInt(text, number, 6, pos, FALSE); numLen = pos.getIndex() - cur; if (numLen <= 0) { pos.setIndex(start); pos.setErrorIndex(cur); return 0; } int32_t numVal = number.getLong(); int32_t hour = 0; int32_t min = 0; int32_t sec = 0; if (numLen <= 2) { // H[H][:mm[:ss]] hour = numVal; cur += numLen; if (cur + 2 < text.length() && text.charAt(cur) == (UChar)0x003A /* colon */) { cur++; pos.setIndex(cur); parseInt(text, number, 2, pos, FALSE); numLen = pos.getIndex() - cur; if (numLen == 2) { // got minute field min = number.getLong(); cur += numLen; if (cur + 2 < text.length() && text.charAt(cur) == (UChar)0x003A /* colon */) { cur++; pos.setIndex(cur); parseInt(text, number, 2, pos, FALSE); numLen = pos.getIndex() - cur; if (numLen == 2) { // got second field sec = number.getLong(); } else { // reset position pos.setIndex(cur - 1); pos.setErrorIndex(-1); } } } else { // reset postion pos.setIndex(cur - 1); pos.setErrorIndex(-1); } } } else if (numLen == 3 || numLen == 4) { // Hmm or HHmm hour = numVal / 100; min = numVal % 100; } else if (numLen == 5 || numLen == 6) { // Hmmss or HHmmss hour = numVal / 10000; min = (numVal % 10000) / 100; sec = numVal % 100; } else { // HHmmss followed by bogus numbers pos.setIndex(cur + 6); int32_t shift = numLen - 6; while (shift > 0) { numVal /= 10; shift--; } hour = numVal / 10000; min = (numVal % 10000) / 100; sec = numVal % 100; } int32_t offset = ((hour*60 + min)*60 + sec)*1000; if (negative) { offset = -offset; } return offset; } UBool SimpleDateFormat::isDefaultGMTFormat() const { // GMT pattern if (fSymbols->fGmtFormat.length() == 0) { // No GMT pattern is set return TRUE; } else if (fSymbols->fGmtFormat.compare(gDefGmtPat, kGmtPatLen) != 0) { return FALSE; } // Hour patterns if (fSymbols->fGmtHourFormats == NULL || fSymbols->fGmtHourFormatsCount != DateFormatSymbols::GMT_HOUR_COUNT) { // No Hour pattern is set return TRUE; } else if ((fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HMS].compare(gDefGmtNegHmsPat, kNegHmsLen) != 0) || (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HM].compare(gDefGmtNegHmPat, kNegHmLen) != 0) || (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HMS].compare(gDefGmtPosHmsPat, kPosHmsLen) != 0) || (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HM].compare(gDefGmtPosHmPat, kPosHmLen) != 0)) { return FALSE; } return TRUE; } void SimpleDateFormat::formatRFC822TZ(UnicodeString &appendTo, int32_t offset) const { UChar sign = 0x002B /* '+' */; if (offset < 0) { offset = -offset; sign = 0x002D /* '-' */; } appendTo.append(sign); int32_t offsetH = offset / U_MILLIS_PER_HOUR; offset = offset % U_MILLIS_PER_HOUR; int32_t offsetM = offset / U_MILLIS_PER_MINUTE; offset = offset % U_MILLIS_PER_MINUTE; int32_t offsetS = offset / U_MILLIS_PER_SECOND; int32_t num = 0, denom = 0; if (offsetS == 0) { offset = offsetH*100 + offsetM; // HHmm num = offset % 10000; denom = 1000; } else { offset = offsetH*10000 + offsetM*100 + offsetS; // HHmmss num = offset % 1000000; denom = 100000; } while (denom >= 1) { UChar digit = (UChar)0x0030 + (num / denom); appendTo.append(digit); num = num % denom; denom /= 10; } } void SimpleDateFormat::initGMTFormatters(UErrorCode &status) { if (U_FAILURE(status)) { return; } umtx_lock(&LOCK); if (fGMTFormatters == NULL) { fGMTFormatters = (MessageFormat**)uprv_malloc(kNumGMTFormatters * sizeof(MessageFormat*)); if (fGMTFormatters) { for (int32_t i = 0; i < kNumGMTFormatters; i++) { const UnicodeString *hourPattern; switch (i) { case kGMTNegativeHMS: hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HMS]); break; case kGMTNegativeHM: hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HM]); break; case kGMTPositiveHMS: hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HMS]); break; case kGMTPositiveHM: hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HM]); break; } fGMTFormatters[i] = new MessageFormat(fSymbols->fGmtFormat, status); if (U_FAILURE(status)) { break; } SimpleDateFormat *sdf = (SimpleDateFormat*)this->clone(); sdf->adoptTimeZone(TimeZone::createTimeZone(UnicodeString(gEtcUTC))); sdf->applyPattern(*hourPattern); fGMTFormatters[i]->adoptFormat(0, sdf); } } else { status = U_MEMORY_ALLOCATION_ERROR; } } umtx_unlock(&LOCK); } //--------------------------------------------------------------------- void SimpleDateFormat::subFormat(UnicodeString &appendTo, UChar ch, int32_t count, FieldPosition& pos, Calendar& cal, UErrorCode& status) const { if (U_FAILURE(status)) { return; } // this function gets called by format() to produce the appropriate substitution // text for an individual pattern symbol (e.g., "HH" or "yyyy") UChar *patternCharPtr = u_strchr(DateFormatSymbols::getPatternUChars(), ch); UDateFormatField patternCharIndex; const int32_t maxIntCount = 10; int32_t beginOffset = appendTo.length(); // if the pattern character is unrecognized, signal an error and dump out if (patternCharPtr == NULL) { status = U_INVALID_FORMAT_ERROR; return; } patternCharIndex = (UDateFormatField)(patternCharPtr - DateFormatSymbols::getPatternUChars()); UCalendarDateFields field = fgPatternIndexToCalendarField[patternCharIndex]; int32_t value = cal.get(field, status); if (U_FAILURE(status)) { return; } switch (patternCharIndex) { // for any "G" symbol, write out the appropriate era string // "GGGG" is wide era name, anything else is abbreviated name case UDAT_ERA_FIELD: if (count >= 4) _appendSymbol(appendTo, value, fSymbols->fEraNames, fSymbols->fEraNamesCount); else _appendSymbol(appendTo, value, fSymbols->fEras, fSymbols->fErasCount); break; // for "yyyy", write out the whole year; for "yy", write out the last 2 digits case UDAT_YEAR_FIELD: case UDAT_YEAR_WOY_FIELD: if (count >= 4) zeroPaddingNumber(appendTo, value, 4, maxIntCount); else if(count == 1) zeroPaddingNumber(appendTo, value, count, maxIntCount); else zeroPaddingNumber(appendTo, value, 2, 2); break; // TODO: this needs to be synced with Java, with GCL/Shanghai's work // for "MMMM", write out the whole month name, for "MMM", write out the month // abbreviation, for "M" or "MM", write out the month as a number with the // appropriate number of digits // for "MMMMM", use the narrow form case UDAT_MONTH_FIELD: if (count == 5) _appendSymbol(appendTo, value, fSymbols->fNarrowMonths, fSymbols->fNarrowMonthsCount); else if (count == 4) _appendSymbol(appendTo, value, fSymbols->fMonths, fSymbols->fMonthsCount); else if (count == 3) _appendSymbol(appendTo, value, fSymbols->fShortMonths, fSymbols->fShortMonthsCount); else zeroPaddingNumber(appendTo, value + 1, count, maxIntCount); break; // for "LLLL", write out the whole month name, for "LLL", write out the month // abbreviation, for "L" or "LL", write out the month as a number with the // appropriate number of digits // for "LLLLL", use the narrow form case UDAT_STANDALONE_MONTH_FIELD: if (count == 5) _appendSymbol(appendTo, value, fSymbols->fStandaloneNarrowMonths, fSymbols->fStandaloneNarrowMonthsCount); else if (count == 4) _appendSymbol(appendTo, value, fSymbols->fStandaloneMonths, fSymbols->fStandaloneMonthsCount); else if (count == 3) _appendSymbol(appendTo, value, fSymbols->fStandaloneShortMonths, fSymbols->fStandaloneShortMonthsCount); else zeroPaddingNumber(appendTo, value + 1, count, maxIntCount); break; // for "k" and "kk", write out the hour, adjusting midnight to appear as "24" case UDAT_HOUR_OF_DAY1_FIELD: if (value == 0) zeroPaddingNumber(appendTo, cal.getMaximum(UCAL_HOUR_OF_DAY) + 1, count, maxIntCount); else zeroPaddingNumber(appendTo, value, count, maxIntCount); break; case UDAT_FRACTIONAL_SECOND_FIELD: // Fractional seconds left-justify { fNumberFormat->setMinimumIntegerDigits((count > 3) ? 3 : count); fNumberFormat->setMaximumIntegerDigits(maxIntCount); if (count == 1) { value = (value + 50) / 100; } else if (count == 2) { value = (value + 5) / 10; } FieldPosition p(0); fNumberFormat->format(value, appendTo, p); if (count > 3) { fNumberFormat->setMinimumIntegerDigits(count - 3); fNumberFormat->format((int32_t)0, appendTo, p); } } break; // for "EEE", write out the abbreviated day-of-the-week name // for "EEEE", write out the wide day-of-the-week name // for "EEEEE", use the narrow day-of-the-week name case UDAT_DAY_OF_WEEK_FIELD: if (count == 5) _appendSymbol(appendTo, value, fSymbols->fNarrowWeekdays, fSymbols->fNarrowWeekdaysCount); else if (count == 4) _appendSymbol(appendTo, value, fSymbols->fWeekdays, fSymbols->fWeekdaysCount); else _appendSymbol(appendTo, value, fSymbols->fShortWeekdays, fSymbols->fShortWeekdaysCount); break; // for "ccc", write out the abbreviated day-of-the-week name // for "cccc", write out the wide day-of-the-week name // for "ccccc", use the narrow day-of-the-week name case UDAT_STANDALONE_DAY_FIELD: if (count == 5) _appendSymbol(appendTo, value, fSymbols->fStandaloneNarrowWeekdays, fSymbols->fStandaloneNarrowWeekdaysCount); else if (count == 4) _appendSymbol(appendTo, value, fSymbols->fStandaloneWeekdays, fSymbols->fStandaloneWeekdaysCount); else if (count == 3) _appendSymbol(appendTo, value, fSymbols->fStandaloneShortWeekdays, fSymbols->fStandaloneShortWeekdaysCount); else zeroPaddingNumber(appendTo, value, 1, maxIntCount); break; // for and "a" symbol, write out the whole AM/PM string case UDAT_AM_PM_FIELD: _appendSymbol(appendTo, value, fSymbols->fAmPms, fSymbols->fAmPmsCount); break; // for "h" and "hh", write out the hour, adjusting noon and midnight to show up // as "12" case UDAT_HOUR1_FIELD: if (value == 0) zeroPaddingNumber(appendTo, cal.getLeastMaximum(UCAL_HOUR) + 1, count, maxIntCount); else zeroPaddingNumber(appendTo, value, count, maxIntCount); break; // for the "z" symbols, we have to check our time zone data first. If we have a // localized name for the time zone, then "zzzz" / "zzz" indicate whether // daylight time is in effect (long/short) and "zz" / "z" do not (long/short). // If we don't have a localized time zone name, // then the time zone shows up as "GMT+hh:mm" or "GMT-hh:mm" (where "hh:mm" is the // offset from GMT) regardless of how many z's were in the pattern symbol case UDAT_TIMEZONE_FIELD: case UDAT_TIMEZONE_GENERIC_FIELD: case UDAT_TIMEZONE_SPECIAL_FIELD: { UnicodeString zoneString; const ZoneStringFormat *zsf = fSymbols->getZoneStringFormat(); if (zsf) { if (patternCharIndex == UDAT_TIMEZONE_FIELD) { if (count < 4) { // "z", "zz", "zzz" zsf->getSpecificShortString(cal, TRUE /*commonly used only*/, zoneString, status); } else { // "zzzz" zsf->getSpecificLongString(cal, zoneString, status); } } else if (patternCharIndex == UDAT_TIMEZONE_GENERIC_FIELD) { if (count == 1) { // "v" zsf->getGenericShortString(cal, TRUE /*commonly used only*/, zoneString, status); } else if (count == 4) { // "vvvv" zsf->getGenericLongString(cal, zoneString, status); } } else { // patternCharIndex == UDAT_TIMEZONE_SPECIAL_FIELD if (count == 1) { // "V" zsf->getSpecificShortString(cal, FALSE /*ignore commonly used*/, zoneString, status); } else if (count == 4) { // "VVVV" zsf->getGenericLocationString(cal, zoneString, status); } } } if (zoneString.isEmpty()) { appendGMT(appendTo, cal, status); } else { appendTo += zoneString; } } break; case UDAT_TIMEZONE_RFC_FIELD: // 'Z' - TIMEZONE_RFC if (count < 4) { // RFC822 format, must use ASCII digits value = (cal.get(UCAL_ZONE_OFFSET, status) + cal.get(UCAL_DST_OFFSET, status)); formatRFC822TZ(appendTo, value); } else { // long form, localized GMT pattern appendGMT(appendTo, cal, status); } break; case UDAT_QUARTER_FIELD: if (count >= 4) _appendSymbol(appendTo, value/3, fSymbols->fQuarters, fSymbols->fQuartersCount); else if (count == 3) _appendSymbol(appendTo, value/3, fSymbols->fShortQuarters, fSymbols->fShortQuartersCount); else zeroPaddingNumber(appendTo, (value/3) + 1, count, maxIntCount); break; case UDAT_STANDALONE_QUARTER_FIELD: if (count >= 4) _appendSymbol(appendTo, value/3, fSymbols->fStandaloneQuarters, fSymbols->fStandaloneQuartersCount); else if (count == 3) _appendSymbol(appendTo, value/3, fSymbols->fStandaloneShortQuarters, fSymbols->fStandaloneShortQuartersCount); else zeroPaddingNumber(appendTo, (value/3) + 1, count, maxIntCount); break; // all of the other pattern symbols can be formatted as simple numbers with // appropriate zero padding default: zeroPaddingNumber(appendTo, value, count, maxIntCount); break; } // if the field we're formatting is the one the FieldPosition says it's interested // in, fill in the FieldPosition with this field's positions if (pos.getBeginIndex() == pos.getEndIndex() && pos.getField() == fgPatternIndexToDateFormatField[patternCharIndex]) { pos.setBeginIndex(beginOffset); pos.setEndIndex(appendTo.length()); } } //---------------------------------------------------------------------- void SimpleDateFormat::zeroPaddingNumber(UnicodeString &appendTo, int32_t value, int32_t minDigits, int32_t maxDigits) const { FieldPosition pos(0); fNumberFormat->setMinimumIntegerDigits(minDigits); fNumberFormat->setMaximumIntegerDigits(maxDigits); fNumberFormat->format(value, appendTo, pos); // 3rd arg is there to speed up processing } //---------------------------------------------------------------------- /** * Format characters that indicate numeric fields. The character * at index 0 is treated specially. */ static const UChar NUMERIC_FORMAT_CHARS[] = {0x4D, 0x79, 0x75, 0x64, 0x68, 0x48, 0x6D, 0x73, 0x53, 0x44, 0x46, 0x77, 0x57, 0x6B, 0x4B, 0x00}; /* "MyudhHmsSDFwWkK" */ /** * Return true if the given format character, occuring count * times, represents a numeric field. */ UBool SimpleDateFormat::isNumeric(UChar formatChar, int32_t count) { UnicodeString s(NUMERIC_FORMAT_CHARS); int32_t i = s.indexOf(formatChar); return (i > 0 || (i == 0 && count < 3)); } void SimpleDateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& parsePos) const { int32_t pos = parsePos.getIndex(); int32_t start = pos; UBool ambiguousYear[] = { FALSE }; int32_t count = 0; // hack, reset tztype, cast away const ((SimpleDateFormat*)this)->tztype = TZTYPE_UNK; // For parsing abutting numeric fields. 'abutPat' is the // offset into 'pattern' of the first of 2 or more abutting // numeric fields. 'abutStart' is the offset into 'text' // where parsing the fields begins. 'abutPass' starts off as 0 // and increments each time we try to parse the fields. int32_t abutPat = -1; // If >=0, we are in a run of abutting numeric fields int32_t abutStart = 0; int32_t abutPass = 0; UBool inQuote = FALSE; const UnicodeString numericFormatChars(NUMERIC_FORMAT_CHARS); for (int32_t i=0; i= 0x41 && ch <= 0x5A) || (ch >= 0x61 && ch <= 0x7A))) { // [A-Za-z] int32_t fieldPat = i; // Count the length of this field specifier count = 1; while ((i+1) 0; } // Record the start of a set of abutting numeric // fields. if (abutting) { abutPat = fieldPat; abutStart = pos; abutPass = 0; } } } } else { abutPat = -1; // End of any abutting fields } // Handle fields within a run of abutting numeric fields. Take // the pattern "HHmmss" as an example. We will try to parse // 2/2/2 characters of the input text, then if that fails, // 1/2/2. We only adjust the width of the leftmost field; the // others remain fixed. This allows "123456" => 12:34:56, but // "12345" => 1:23:45. Likewise, for the pattern "yyyyMMdd" we // try 4/2/2, 3/2/2, 2/2/2, and finally 1/2/2. if (abutPat >= 0) { // If we are at the start of a run of abutting fields, then // shorten this field in each pass. If we can't shorten // this field any more, then the parse of this set of // abutting numeric fields has failed. if (fieldPat == abutPat) { count -= abutPass++; if (count == 0) { parsePos.setIndex(start); parsePos.setErrorIndex(pos); return; } } pos = subParse(text, pos, ch, count, TRUE, FALSE, ambiguousYear, cal); // If the parse fails anywhere in the run, back up to the // start of the run and retry. if (pos < 0) { i = abutPat - 1; pos = abutStart; continue; } } // Handle non-numeric fields and non-abutting numeric // fields. else { int32_t s = pos; pos = subParse(text, pos, ch, count, FALSE, TRUE, ambiguousYear, cal); if (pos < 0) { parsePos.setErrorIndex(s); parsePos.setIndex(start); return; } } } // Handle literal pattern characters. These are any // quoted characters and non-alphabetic unquoted // characters. else { abutPat = -1; // End of any abutting fields // Handle quotes. Two consecutive quotes is a quote // literal, inside or outside of quotes. Otherwise a // quote indicates entry or exit from a quoted region. if (ch == QUOTE) { // Match a quote literal '' within OR outside of quotes if ((i+1) s) { continue; } } else if (posgetTime(status); // {sfb} check internalGetDefaultCenturyStart if (fHaveDefaultCentury && (parsedDate < fDefaultCenturyStart)) { // We can't use add here because that does a complete() first. cal.set(UCAL_YEAR, fDefaultCenturyStartYear + 100); } delete copy; } if (tztype != TZTYPE_UNK) { copy = cal.clone(); const TimeZone & tz = cal.getTimeZone(); BasicTimeZone *btz = NULL; if (tz.getDynamicClassID() == OlsonTimeZone::getStaticClassID() || tz.getDynamicClassID() == SimpleTimeZone::getStaticClassID() || tz.getDynamicClassID() == RuleBasedTimeZone::getStaticClassID() || tz.getDynamicClassID() == VTimeZone::getStaticClassID()) { btz = (BasicTimeZone*)&tz; } // Get local millis copy->set(UCAL_ZONE_OFFSET, 0); copy->set(UCAL_DST_OFFSET, 0); UDate localMillis = copy->getTime(status); // Make sure parsed time zone type (Standard or Daylight) // matches the rule used by the parsed time zone. int32_t raw, dst; if (btz != NULL) { if (tztype == TZTYPE_STD) { btz->getOffsetFromLocal(localMillis, BasicTimeZone::kStandard, BasicTimeZone::kStandard, raw, dst, status); } else { btz->getOffsetFromLocal(localMillis, BasicTimeZone::kDaylight, BasicTimeZone::kDaylight, raw, dst, status); } } else { // No good way to resolve ambiguous time at transition, // but following code work in most case. tz.getOffset(localMillis, TRUE, raw, dst, status); } // Now, compare the results with parsed type, either standard or daylight saving time int32_t resolvedSavings = dst; if (tztype == TZTYPE_STD) { if (dst != 0) { // Override DST_OFFSET = 0 in the result calendar resolvedSavings = 0; } } else { // tztype == TZTYPE_DST if (dst == 0) { if (btz != NULL) { UDate time = localMillis + raw; // We use the nearest daylight saving time rule. TimeZoneTransition beforeTrs, afterTrs; UDate beforeT = time, afterT = time; int32_t beforeSav = 0, afterSav = 0; UBool beforeTrsAvail, afterTrsAvail; // Search for DST rule before or on the time while (TRUE) { beforeTrsAvail = btz->getPreviousTransition(beforeT, TRUE, beforeTrs); if (!beforeTrsAvail) { break; } beforeT = beforeTrs.getTime() - 1; beforeSav = beforeTrs.getFrom()->getDSTSavings(); if (beforeSav != 0) { break; } } // Search for DST rule after the time while (TRUE) { afterTrsAvail = btz->getNextTransition(afterT, FALSE, afterTrs); if (!afterTrsAvail) { break; } afterT = afterTrs.getTime(); afterSav = afterTrs.getTo()->getDSTSavings(); if (afterSav != 0) { break; } } if (beforeTrsAvail && afterTrsAvail) { if (time - beforeT > afterT - time) { resolvedSavings = afterSav; } else { resolvedSavings = beforeSav; } } else if (beforeTrsAvail && beforeSav != 0) { resolvedSavings = beforeSav; } else if (afterTrsAvail && afterSav != 0) { resolvedSavings = afterSav; } else { resolvedSavings = btz->getDSTSavings(); } } else { resolvedSavings = tz.getDSTSavings(); } if (resolvedSavings == 0) { // final fallback resolvedSavings = U_MILLIS_PER_HOUR; } } } cal.set(UCAL_ZONE_OFFSET, raw); cal.set(UCAL_DST_OFFSET, resolvedSavings); delete copy; } } // If any Calendar calls failed, we pretend that we // couldn't parse the string, when in reality this isn't quite accurate-- // we did parse it; the Calendar calls just failed. if (U_FAILURE(status)) { parsePos.setErrorIndex(pos); parsePos.setIndex(start); } } UDate SimpleDateFormat::parse( const UnicodeString& text, ParsePosition& pos) const { // redefined here because the other parse() function hides this function's // cunterpart on DateFormat return DateFormat::parse(text, pos); } UDate SimpleDateFormat::parse(const UnicodeString& text, UErrorCode& status) const { // redefined here because the other parse() function hides this function's // counterpart on DateFormat return DateFormat::parse(text, status); } //---------------------------------------------------------------------- int32_t SimpleDateFormat::matchQuarterString(const UnicodeString& text, int32_t start, UCalendarDateFields field, const UnicodeString* data, int32_t dataCount, Calendar& cal) const { int32_t i = 0; int32_t count = dataCount; // There may be multiple strings in the data[] array which begin with // the same prefix (e.g., Cerven and Cervenec (June and July) in Czech). // We keep track of the longest match, and return that. Note that this // unfortunately requires us to test all array elements. int32_t bestMatchLength = 0, bestMatch = -1; // {sfb} kludge to support case-insensitive comparison // {markus 2002oct11} do not just use caseCompareBetween because we do not know // the length of the match after case folding // {alan 20040607} don't case change the whole string, since the length // can change // TODO we need a case-insensitive startsWith function UnicodeString lcase, lcaseText; text.extract(start, INT32_MAX, lcaseText); lcaseText.foldCase(); for (; i < count; ++i) { // Always compare if we have no match yet; otherwise only compare // against potentially better matches (longer strings). lcase.fastCopyFrom(data[i]).foldCase(); int32_t length = lcase.length(); if (length > bestMatchLength && lcaseText.compareBetween(0, length, lcase, 0, length) == 0) { bestMatch = i; bestMatchLength = length; } } if (bestMatch >= 0) { cal.set(field, bestMatch * 3); // Once we have a match, we have to determine the length of the // original source string. This will usually be == the length of // the case folded string, but it may differ (e.g. sharp s). lcase.fastCopyFrom(data[bestMatch]).foldCase(); // Most of the time, the length will be the same as the length // of the string from the locale data. Sometimes it will be // different, in which case we will have to figure it out by // adding a character at a time, until we have a match. We do // this all in one loop, where we try 'len' first (at index // i==0). int32_t len = data[bestMatch].length(); // 99+% of the time int32_t n = text.length() - start; for (i=0; i<=n; ++i) { int32_t j=i; if (i == 0) { j = len; } else if (i == len) { continue; // already tried this when i was 0 } text.extract(start, j, lcaseText); lcaseText.foldCase(); if (lcase == lcaseText) { return start + j; } } } return -start; } //---------------------------------------------------------------------- int32_t SimpleDateFormat::matchString(const UnicodeString& text, int32_t start, UCalendarDateFields field, const UnicodeString* data, int32_t dataCount, Calendar& cal) const { int32_t i = 0; int32_t count = dataCount; if (field == UCAL_DAY_OF_WEEK) i = 1; // There may be multiple strings in the data[] array which begin with // the same prefix (e.g., Cerven and Cervenec (June and July) in Czech). // We keep track of the longest match, and return that. Note that this // unfortunately requires us to test all array elements. int32_t bestMatchLength = 0, bestMatch = -1; // {sfb} kludge to support case-insensitive comparison // {markus 2002oct11} do not just use caseCompareBetween because we do not know // the length of the match after case folding // {alan 20040607} don't case change the whole string, since the length // can change // TODO we need a case-insensitive startsWith function UnicodeString lcase, lcaseText; text.extract(start, INT32_MAX, lcaseText); lcaseText.foldCase(); for (; i < count; ++i) { // Always compare if we have no match yet; otherwise only compare // against potentially better matches (longer strings). lcase.fastCopyFrom(data[i]).foldCase(); int32_t length = lcase.length(); if (length > bestMatchLength && lcaseText.compareBetween(0, length, lcase, 0, length) == 0) { bestMatch = i; bestMatchLength = length; } } if (bestMatch >= 0) { cal.set(field, bestMatch); // Once we have a match, we have to determine the length of the // original source string. This will usually be == the length of // the case folded string, but it may differ (e.g. sharp s). lcase.fastCopyFrom(data[bestMatch]).foldCase(); // Most of the time, the length will be the same as the length // of the string from the locale data. Sometimes it will be // different, in which case we will have to figure it out by // adding a character at a time, until we have a match. We do // this all in one loop, where we try 'len' first (at index // i==0). int32_t len = data[bestMatch].length(); // 99+% of the time int32_t n = text.length() - start; for (i=0; i<=n; ++i) { int32_t j=i; if (i == 0) { j = len; } else if (i == len) { continue; // already tried this when i was 0 } text.extract(start, j, lcaseText); lcaseText.foldCase(); if (lcase == lcaseText) { return start + j; } } } return -start; } //---------------------------------------------------------------------- void SimpleDateFormat::set2DigitYearStart(UDate d, UErrorCode& status) { parseAmbiguousDatesAsAfter(d, status); } /** * Private member function that converts the parsed date strings into * timeFields. Returns -start (for ParsePosition) if failed. * @param text the time text to be parsed. * @param start where to start parsing. * @param ch the pattern character for the date field text to be parsed. * @param count the count of a pattern character. * @return the new start position if matching succeeded; a negative number * indicating matching failure, otherwise. */ int32_t SimpleDateFormat::subParse(const UnicodeString& text, int32_t& start, UChar ch, int32_t count, UBool obeyCount, UBool allowNegative, UBool ambiguousYear[], Calendar& cal) const { Formattable number; int32_t value = 0; int32_t i; ParsePosition pos(0); int32_t patternCharIndex; UnicodeString temp; UChar *patternCharPtr = u_strchr(DateFormatSymbols::getPatternUChars(), ch); #if defined (U_DEBUG_CAL) //fprintf(stderr, "%s:%d - [%c] st=%d \n", __FILE__, __LINE__, (char) ch, start); #endif if (patternCharPtr == NULL) { return -start; } patternCharIndex = (UDateFormatField)(patternCharPtr - DateFormatSymbols::getPatternUChars()); UCalendarDateFields field = fgPatternIndexToCalendarField[patternCharIndex]; // If there are any spaces here, skip over them. If we hit the end // of the string, then fail. for (;;) { if (start >= text.length()) { return -start; } UChar32 c = text.char32At(start); if (!u_isUWhiteSpace(c)) { break; } start += UTF_CHAR_LENGTH(c); } pos.setIndex(start); // We handle a few special cases here where we need to parse // a number value. We handle further, more generic cases below. We need // to handle some of them here because some fields require extra processing on // the parsed value. if (patternCharIndex == UDAT_HOUR_OF_DAY1_FIELD || patternCharIndex == UDAT_HOUR1_FIELD || (patternCharIndex == UDAT_MONTH_FIELD && count <= 2) || (patternCharIndex == UDAT_STANDALONE_MONTH_FIELD && count <= 2) || (patternCharIndex == UDAT_QUARTER_FIELD && count <= 2) || (patternCharIndex == UDAT_STANDALONE_QUARTER_FIELD && count <= 2) || patternCharIndex == UDAT_YEAR_FIELD || patternCharIndex == UDAT_YEAR_WOY_FIELD || patternCharIndex == UDAT_FRACTIONAL_SECOND_FIELD) { int32_t parseStart = pos.getIndex(); // It would be good to unify this with the obeyCount logic below, // but that's going to be difficult. const UnicodeString* src; if (obeyCount) { if ((start+count) > text.length()) { return -start; } text.extractBetween(0, start + count, temp); src = &temp; } else { src = &text; } parseInt(*src, number, pos, allowNegative); if (pos.getIndex() == parseStart) return -start; value = number.getLong(); } switch (patternCharIndex) { case UDAT_ERA_FIELD: if (count == 4) { return matchString(text, start, UCAL_ERA, fSymbols->fEraNames, fSymbols->fEraNamesCount, cal); } return matchString(text, start, UCAL_ERA, fSymbols->fEras, fSymbols->fErasCount, cal); case UDAT_YEAR_FIELD: // If there are 3 or more YEAR pattern characters, this indicates // that the year value is to be treated literally, without any // two-digit year adjustments (e.g., from "01" to 2001). Otherwise // we made adjustments to place the 2-digit year in the proper // century, for parsed strings from "00" to "99". Any other string // is treated literally: "2250", "-1", "1", "002". if (count <= 2 && (pos.getIndex() - start) == 2 && u_isdigit(text.charAt(start)) && u_isdigit(text.charAt(start+1))) { // Assume for example that the defaultCenturyStart is 6/18/1903. // This means that two-digit years will be forced into the range // 6/18/1903 to 6/17/2003. As a result, years 00, 01, and 02 // correspond to 2000, 2001, and 2002. Years 04, 05, etc. correspond // to 1904, 1905, etc. If the year is 03, then it is 2003 if the // other fields specify a date before 6/18, or 1903 if they specify a // date afterwards. As a result, 03 is an ambiguous year. All other // two-digit years are unambiguous. if(fHaveDefaultCentury) { // check if this formatter even has a pivot year int32_t ambiguousTwoDigitYear = fDefaultCenturyStartYear % 100; ambiguousYear[0] = (value == ambiguousTwoDigitYear); value += (fDefaultCenturyStartYear/100)*100 + (value < ambiguousTwoDigitYear ? 100 : 0); } } cal.set(UCAL_YEAR, value); return pos.getIndex(); case UDAT_YEAR_WOY_FIELD: // Comment is the same as for UDAT_Year_FIELDs - look above if (count <= 2 && (pos.getIndex() - start) == 2 && u_isdigit(text.charAt(start)) && u_isdigit(text.charAt(start+1)) && fHaveDefaultCentury ) { int32_t ambiguousTwoDigitYear = fDefaultCenturyStartYear % 100; ambiguousYear[0] = (value == ambiguousTwoDigitYear); value += (fDefaultCenturyStartYear/100)*100 + (value < ambiguousTwoDigitYear ? 100 : 0); } cal.set(UCAL_YEAR_WOY, value); return pos.getIndex(); case UDAT_MONTH_FIELD: if (count <= 2) // i.e., M or MM. { // Don't want to parse the month if it is a string // while pattern uses numeric style: M or MM. // [We computed 'value' above.] cal.set(UCAL_MONTH, value - 1); return pos.getIndex(); } else { // count >= 3 // i.e., MMM or MMMM // Want to be able to parse both short and long forms. // Try count == 4 first: int32_t newStart = 0; if ((newStart = matchString(text, start, UCAL_MONTH, fSymbols->fMonths, fSymbols->fMonthsCount, cal)) > 0) return newStart; else // count == 4 failed, now try count == 3 return matchString(text, start, UCAL_MONTH, fSymbols->fShortMonths, fSymbols->fShortMonthsCount, cal); } case UDAT_STANDALONE_MONTH_FIELD: if (count <= 2) // i.e., L or LL. { // Don't want to parse the month if it is a string // while pattern uses numeric style: M or MM. // [We computed 'value' above.] cal.set(UCAL_MONTH, value - 1); return pos.getIndex(); } else { // count >= 3 // i.e., LLL or LLLL // Want to be able to parse both short and long forms. // Try count == 4 first: int32_t newStart = 0; if ((newStart = matchString(text, start, UCAL_MONTH, fSymbols->fStandaloneMonths, fSymbols->fStandaloneMonthsCount, cal)) > 0) return newStart; else // count == 4 failed, now try count == 3 return matchString(text, start, UCAL_MONTH, fSymbols->fStandaloneShortMonths, fSymbols->fStandaloneShortMonthsCount, cal); } case UDAT_HOUR_OF_DAY1_FIELD: // [We computed 'value' above.] if (value == cal.getMaximum(UCAL_HOUR_OF_DAY) + 1) value = 0; cal.set(UCAL_HOUR_OF_DAY, value); return pos.getIndex(); case UDAT_FRACTIONAL_SECOND_FIELD: // Fractional seconds left-justify i = pos.getIndex() - start; if (i < 3) { while (i < 3) { value *= 10; i++; } } else { int32_t a = 1; while (i > 3) { a *= 10; i--; } value = (value + (a>>1)) / a; } cal.set(UCAL_MILLISECOND, value); return pos.getIndex(); case UDAT_DAY_OF_WEEK_FIELD: { // Want to be able to parse both short and long forms. // Try count == 4 (DDDD) first: int32_t newStart = 0; if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK, fSymbols->fWeekdays, fSymbols->fWeekdaysCount, cal)) > 0) return newStart; else // DDDD failed, now try DDD return matchString(text, start, UCAL_DAY_OF_WEEK, fSymbols->fShortWeekdays, fSymbols->fShortWeekdaysCount, cal); } case UDAT_STANDALONE_DAY_FIELD: { // Want to be able to parse both short and long forms. // Try count == 4 (DDDD) first: int32_t newStart = 0; if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK, fSymbols->fStandaloneWeekdays, fSymbols->fStandaloneWeekdaysCount, cal)) > 0) return newStart; else // DDDD failed, now try DDD return matchString(text, start, UCAL_DAY_OF_WEEK, fSymbols->fStandaloneShortWeekdays, fSymbols->fStandaloneShortWeekdaysCount, cal); } case UDAT_AM_PM_FIELD: return matchString(text, start, UCAL_AM_PM, fSymbols->fAmPms, fSymbols->fAmPmsCount, cal); case UDAT_HOUR1_FIELD: // [We computed 'value' above.] if (value == cal.getLeastMaximum(UCAL_HOUR)+1) value = 0; cal.set(UCAL_HOUR, value); return pos.getIndex(); case UDAT_QUARTER_FIELD: if (count <= 2) // i.e., Q or QQ. { // Don't want to parse the month if it is a string // while pattern uses numeric style: Q or QQ. // [We computed 'value' above.] cal.set(UCAL_MONTH, (value - 1) * 3); return pos.getIndex(); } else { // count >= 3 // i.e., QQQ or QQQQ // Want to be able to parse both short and long forms. // Try count == 4 first: int32_t newStart = 0; if ((newStart = matchQuarterString(text, start, UCAL_MONTH, fSymbols->fQuarters, fSymbols->fQuartersCount, cal)) > 0) return newStart; else // count == 4 failed, now try count == 3 return matchQuarterString(text, start, UCAL_MONTH, fSymbols->fShortQuarters, fSymbols->fShortQuartersCount, cal); } case UDAT_STANDALONE_QUARTER_FIELD: if (count <= 2) // i.e., q or qq. { // Don't want to parse the month if it is a string // while pattern uses numeric style: q or q. // [We computed 'value' above.] cal.set(UCAL_MONTH, (value - 1) * 3); return pos.getIndex(); } else { // count >= 3 // i.e., qqq or qqqq // Want to be able to parse both short and long forms. // Try count == 4 first: int32_t newStart = 0; if ((newStart = matchQuarterString(text, start, UCAL_MONTH, fSymbols->fStandaloneQuarters, fSymbols->fStandaloneQuartersCount, cal)) > 0) return newStart; else // count == 4 failed, now try count == 3 return matchQuarterString(text, start, UCAL_MONTH, fSymbols->fStandaloneShortQuarters, fSymbols->fStandaloneShortQuartersCount, cal); } case UDAT_TIMEZONE_FIELD: case UDAT_TIMEZONE_RFC_FIELD: case UDAT_TIMEZONE_GENERIC_FIELD: case UDAT_TIMEZONE_SPECIAL_FIELD: { int32_t offset = 0; UBool parsed = FALSE; // Step 1 // Check if this is a long GMT offset string (either localized or default) offset = parseGMT(text, pos); if (pos.getIndex() - start > 0) { parsed = TRUE; } if (!parsed) { // Step 2 // Check if this is an RFC822 time zone offset. // ICU supports the standard RFC822 format [+|-]HHmm // and its extended form [+|-]HHmmSS. do { int32_t sign = 0; UChar signChar = text.charAt(start); if (signChar == (UChar)0x002B /* '+' */) { sign = 1; } else if (signChar == (UChar)0x002D /* '-' */) { sign = -1; } else { // Not an RFC822 offset string break; } // Parse digits int32_t orgPos = start + 1; pos.setIndex(orgPos); parseInt(text, number, 6, pos, FALSE); int32_t numLen = pos.getIndex() - orgPos; if (numLen <= 0) { break; } // Followings are possible format (excluding sign char) // HHmmSS // HmmSS // HHmm // Hmm // HH // H int32_t val = number.getLong(); int32_t hour = 0, min = 0, sec = 0; switch(numLen) { case 1: // H case 2: // HH hour = val; break; case 3: // Hmm case 4: // HHmm hour = val / 100; min = val % 100; break; case 5: // Hmmss case 6: // HHmmss hour = val / 10000; min = (val % 10000) / 100; sec = val % 100; break; } if (hour > 23 || min > 59 || sec > 59) { // Invalid value range break; } offset = (((hour * 60) + min) * 60 + sec) * 1000 * sign; parsed = TRUE; } while (FALSE); if (!parsed) { // Failed to parse. Reset the position. pos.setIndex(start); } } if (parsed) { // offset was successfully parsed as either a long GMT string or RFC822 zone offset // string. Create normalized zone ID for the offset. UnicodeString tzID(gGmt); formatRFC822TZ(tzID, offset); //TimeZone *customTZ = TimeZone::createTimeZone(tzID); TimeZone *customTZ = new SimpleTimeZone(offset, tzID); // faster than TimeZone::createTimeZone cal.adoptTimeZone(customTZ); return pos.getIndex(); } // Step 3 // At this point, check for named time zones by looking through // the locale data from the DateFormatZoneData strings. // Want to be able to parse both short and long forms. // optimize for calendar's current time zone const ZoneStringFormat *zsf = fSymbols->getZoneStringFormat(); if (zsf) { UErrorCode status = U_ZERO_ERROR; const ZoneStringInfo *zsinfo = NULL; int32_t matchLen; switch (patternCharIndex) { case UDAT_TIMEZONE_FIELD: // 'z' if (count < 4) { zsinfo = zsf->findSpecificShort(text, start, matchLen, status); } else { zsinfo = zsf->findSpecificLong(text, start, matchLen, status); } break; case UDAT_TIMEZONE_GENERIC_FIELD: // 'v' if (count == 1) { zsinfo = zsf->findGenericShort(text, start, matchLen, status); } else if (count == 4) { zsinfo = zsf->findGenericLong(text, start, matchLen, status); } break; case UDAT_TIMEZONE_SPECIAL_FIELD: // 'V' if (count == 1) { zsinfo = zsf->findSpecificShort(text, start, matchLen, status); } else if (count == 4) { zsinfo = zsf->findGenericLocation(text, start, matchLen, status); } break; } if (U_SUCCESS(status) && zsinfo != NULL) { if (zsinfo->isStandard()) { ((SimpleDateFormat*)this)->tztype = TZTYPE_STD; } else if (zsinfo->isDaylight()) { ((SimpleDateFormat*)this)->tztype = TZTYPE_DST; } UnicodeString tzid; zsinfo->getID(tzid); UnicodeString current; cal.getTimeZone().getID(current); if (tzid != current) { TimeZone *tz = TimeZone::createTimeZone(tzid); cal.adoptTimeZone(tz); } return start + matchLen; } } // complete failure return -start; } default: // Handle "generic" fields int32_t parseStart = pos.getIndex(); const UnicodeString* src; if (obeyCount) { if ((start+count) > text.length()) { return -start; } text.extractBetween(0, start + count, temp); src = &temp; } else { src = &text; } parseInt(*src, number, pos, allowNegative); if (pos.getIndex() != parseStart) { cal.set(field, number.getLong()); return pos.getIndex(); } return -start; } } /** * Parse an integer using fNumberFormat. This method is semantically * const, but actually may modify fNumberFormat. */ void SimpleDateFormat::parseInt(const UnicodeString& text, Formattable& number, ParsePosition& pos, UBool allowNegative) const { parseInt(text, number, -1, pos, allowNegative); } /** * Parse an integer using fNumberFormat up to maxDigits. */ void SimpleDateFormat::parseInt(const UnicodeString& text, Formattable& number, int32_t maxDigits, ParsePosition& pos, UBool allowNegative) const { UnicodeString oldPrefix; DecimalFormat* df = NULL; if (!allowNegative && fNumberFormat->getDynamicClassID() == DecimalFormat::getStaticClassID()) { df = (DecimalFormat*)fNumberFormat; df->getNegativePrefix(oldPrefix); df->setNegativePrefix(SUPPRESS_NEGATIVE_PREFIX); } int32_t oldPos = pos.getIndex(); fNumberFormat->parse(text, number, pos); if (df != NULL) { df->setNegativePrefix(oldPrefix); } if (maxDigits > 0) { // adjust the result to fit into // the maxDigits and move the position back int32_t nDigits = pos.getIndex() - oldPos; if (nDigits > maxDigits) { int32_t val = number.getLong(); nDigits -= maxDigits; while (nDigits > 0) { val /= 10; nDigits--; } pos.setIndex(oldPos + maxDigits); number.setLong(val); } } } //---------------------------------------------------------------------- void SimpleDateFormat::translatePattern(const UnicodeString& originalPattern, UnicodeString& translatedPattern, const UnicodeString& from, const UnicodeString& to, UErrorCode& status) { // run through the pattern and convert any pattern symbols from the version // in "from" to the corresponding character ion "to". This code takes // quoted strings into account (it doesn't try to translate them), and it signals // an error if a particular "pattern character" doesn't appear in "from". // Depending on the values of "from" and "to" this can convert from generic // to localized patterns or localized to generic. if (U_FAILURE(status)) return; translatedPattern.remove(); UBool inQuote = FALSE; for (int32_t i = 0; i < originalPattern.length(); ++i) { UChar c = originalPattern[i]; if (inQuote) { if (c == QUOTE) inQuote = FALSE; } else { if (c == QUOTE) inQuote = TRUE; else if ((c >= 0x0061 /*'a'*/ && c <= 0x007A) /*'z'*/ || (c >= 0x0041 /*'A'*/ && c <= 0x005A /*'Z'*/)) { int32_t ci = from.indexOf(c); if (ci == -1) { status = U_INVALID_FORMAT_ERROR; return; } c = to[ci]; } } translatedPattern += c; } if (inQuote) { status = U_INVALID_FORMAT_ERROR; return; } } //---------------------------------------------------------------------- UnicodeString& SimpleDateFormat::toPattern(UnicodeString& result) const { result = fPattern; return result; } //---------------------------------------------------------------------- UnicodeString& SimpleDateFormat::toLocalizedPattern(UnicodeString& result, UErrorCode& status) const { translatePattern(fPattern, result, DateFormatSymbols::getPatternUChars(), fSymbols->fLocalPatternChars, status); return result; } //---------------------------------------------------------------------- void SimpleDateFormat::applyPattern(const UnicodeString& pattern) { fPattern = pattern; } //---------------------------------------------------------------------- void SimpleDateFormat::applyLocalizedPattern(const UnicodeString& pattern, UErrorCode &status) { translatePattern(pattern, fPattern, fSymbols->fLocalPatternChars, DateFormatSymbols::getPatternUChars(), status); } //---------------------------------------------------------------------- const DateFormatSymbols* SimpleDateFormat::getDateFormatSymbols() const { return fSymbols; } //---------------------------------------------------------------------- void SimpleDateFormat::adoptDateFormatSymbols(DateFormatSymbols* newFormatSymbols) { delete fSymbols; fSymbols = newFormatSymbols; } //---------------------------------------------------------------------- void SimpleDateFormat::setDateFormatSymbols(const DateFormatSymbols& newFormatSymbols) { delete fSymbols; fSymbols = new DateFormatSymbols(newFormatSymbols); } //---------------------------------------------------------------------- void SimpleDateFormat::adoptCalendar(Calendar* calendarToAdopt) { UErrorCode status = U_ZERO_ERROR; DateFormat::adoptCalendar(calendarToAdopt); delete fSymbols; fSymbols=NULL; initializeSymbols(fLocale, fCalendar, status); // we need new symbols initializeDefaultCentury(); // we need a new century (possibly) } U_NAMESPACE_END #endif /* #if !UCONFIG_NO_FORMATTING */ //eof