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Diffstat (limited to 'Build/source/libs/icu/icu-xetex/i18n/datefmt.cpp')
| -rw-r--r-- | Build/source/libs/icu/icu-xetex/i18n/datefmt.cpp | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/i18n/datefmt.cpp b/Build/source/libs/icu/icu-xetex/i18n/datefmt.cpp new file mode 100644 index 00000000000..f49ca94cc50 --- /dev/null +++ b/Build/source/libs/icu/icu-xetex/i18n/datefmt.cpp @@ -0,0 +1,428 @@ +/* + ******************************************************************************* + * Copyright (C) 1997-2007, International Business Machines Corporation and * + * others. All Rights Reserved. * + ******************************************************************************* + * + * File DATEFMT.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. + * 08/12/97 aliu Fixed operator== to use Calendar::equivalentTo. + * 07/20/98 stephen Changed ParsePosition initialization + ******************************************************************************** + */ + +#include "unicode/utypes.h" + +#if !UCONFIG_NO_FORMATTING + +#include "unicode/ures.h" +#include "unicode/datefmt.h" +#include "unicode/smpdtfmt.h" +#include "reldtfmt.h" + +#include "cstring.h" +#include "windtfmt.h" + +#if defined( U_DEBUG_CALSVC ) || defined (U_DEBUG_CAL) +#include <stdio.h> +#endif + +// ***************************************************************************** +// class DateFormat +// ***************************************************************************** + +U_NAMESPACE_BEGIN + +DateFormat::DateFormat() +: fCalendar(0), + fNumberFormat(0) +{ +} + +//---------------------------------------------------------------------- + +DateFormat::DateFormat(const DateFormat& other) +: Format(other), + fCalendar(0), + fNumberFormat(0) +{ + *this = other; +} + +//---------------------------------------------------------------------- + +DateFormat& DateFormat::operator=(const DateFormat& other) +{ + if (this != &other) + { + delete fCalendar; + delete fNumberFormat; + if(other.fCalendar) { + fCalendar = other.fCalendar->clone(); + } else { + fCalendar = NULL; + } + if(other.fNumberFormat) { + fNumberFormat = (NumberFormat*)other.fNumberFormat->clone(); + } else { + fNumberFormat = NULL; + } + } + return *this; +} + +//---------------------------------------------------------------------- + +DateFormat::~DateFormat() +{ + delete fCalendar; + delete fNumberFormat; +} + +//---------------------------------------------------------------------- + +UBool +DateFormat::operator==(const Format& other) const +{ + // This protected comparison operator should only be called by subclasses + // which have confirmed that the other object being compared against is + // an instance of a sublcass of DateFormat. THIS IS IMPORTANT. + + // Format::operator== guarantees that this cast is safe + DateFormat* fmt = (DateFormat*)&other; + + return (this == fmt) || + (Format::operator==(other) && + fCalendar&&(fCalendar->isEquivalentTo(*fmt->fCalendar)) && + (fNumberFormat && *fNumberFormat == *fmt->fNumberFormat)); +} + +//---------------------------------------------------------------------- + +UnicodeString& +DateFormat::format(const Formattable& obj, + UnicodeString& appendTo, + FieldPosition& fieldPosition, + UErrorCode& status) const +{ + if (U_FAILURE(status)) return appendTo; + + // if the type of the Formattable is double or long, treat it as if it were a Date + UDate date = 0; + switch (obj.getType()) + { + case Formattable::kDate: + date = obj.getDate(); + break; + case Formattable::kDouble: + date = (UDate)obj.getDouble(); + break; + case Formattable::kLong: + date = (UDate)obj.getLong(); + break; + default: + status = U_ILLEGAL_ARGUMENT_ERROR; + return appendTo; + } + + // Is this right? + //if (fieldPosition.getBeginIndex() == fieldPosition.getEndIndex()) + // status = U_ILLEGAL_ARGUMENT_ERROR; + + return format(date, appendTo, fieldPosition); +} + +//---------------------------------------------------------------------- + +UnicodeString& +DateFormat::format(UDate date, UnicodeString& appendTo, FieldPosition& fieldPosition) const { + if (fCalendar != NULL) { + // Use our calendar instance + UErrorCode ec = U_ZERO_ERROR; + fCalendar->setTime(date, ec); + if (U_SUCCESS(ec)) { + return format(*fCalendar, appendTo, fieldPosition); + } + } + return appendTo; +} + +//---------------------------------------------------------------------- + +UnicodeString& +DateFormat::format(UDate date, UnicodeString& appendTo) const +{ + // Note that any error information is just lost. That's okay + // for this convenience method. + FieldPosition fpos(0); + return format(date, appendTo, fpos); +} + +//---------------------------------------------------------------------- + +UDate +DateFormat::parse(const UnicodeString& text, + ParsePosition& pos) const +{ + UDate d = 0; // Error return UDate is 0 (the epoch) + if (fCalendar != NULL) { + int32_t start = pos.getIndex(); + + // Parse may update TimeZone used by the calendar. + TimeZone *tzsav = (TimeZone*)fCalendar->getTimeZone().clone(); + + fCalendar->clear(); + parse(text, *fCalendar, pos); + if (pos.getIndex() != start) { + UErrorCode ec = U_ZERO_ERROR; + d = fCalendar->getTime(ec); + if (U_FAILURE(ec)) { + // We arrive here if fCalendar is non-lenient and there + // is an out-of-range field. We don't know which field + // was illegal so we set the error index to the start. + pos.setIndex(start); + pos.setErrorIndex(start); + d = 0; + } + } + + // Restore TimeZone + fCalendar->adoptTimeZone(tzsav); + } + return d; +} + +//---------------------------------------------------------------------- + +UDate +DateFormat::parse(const UnicodeString& text, + UErrorCode& status) const +{ + if (U_FAILURE(status)) return 0; + + ParsePosition pos(0); + UDate result = parse(text, pos); + if (pos.getIndex() == 0) { +#if defined (U_DEBUG_CAL) + fprintf(stderr, "%s:%d - - failed to parse - err index %d\n" + , __FILE__, __LINE__, pos.getErrorIndex() ); +#endif + status = U_ILLEGAL_ARGUMENT_ERROR; + } + return result; +} + +//---------------------------------------------------------------------- + +void +DateFormat::parseObject(const UnicodeString& source, + Formattable& result, + ParsePosition& pos) const +{ + result.setDate(parse(source, pos)); +} + +//---------------------------------------------------------------------- + +DateFormat* U_EXPORT2 +DateFormat::createTimeInstance(DateFormat::EStyle style, + const Locale& aLocale) +{ + return create(style, kNone, aLocale); +} + +//---------------------------------------------------------------------- + +DateFormat* U_EXPORT2 +DateFormat::createDateInstance(DateFormat::EStyle style, + const Locale& aLocale) +{ + // +4 to set the correct index for getting data out of + // LocaleElements. + if(style != kNone) + { + style = (EStyle) (style + kDateOffset); + } + return create(kNone, (EStyle) (style), aLocale); +} + +//---------------------------------------------------------------------- + +DateFormat* U_EXPORT2 +DateFormat::createDateTimeInstance(EStyle dateStyle, + EStyle timeStyle, + const Locale& aLocale) +{ + if(dateStyle != kNone) + { + dateStyle = (EStyle) (dateStyle + kDateOffset); + } + return create(timeStyle, dateStyle, aLocale); +} + +//---------------------------------------------------------------------- + +DateFormat* U_EXPORT2 +DateFormat::createInstance() +{ + return create(kShort, (EStyle) (kShort + kDateOffset), Locale::getDefault()); +} + +//---------------------------------------------------------------------- + +DateFormat* U_EXPORT2 +DateFormat::create(EStyle timeStyle, EStyle dateStyle, const Locale& locale) +{ + UErrorCode status = U_ZERO_ERROR; +#ifdef U_WINDOWS + char buffer[8]; + int32_t count = locale.getKeywordValue("compat", buffer, sizeof(buffer), status); + + // if the locale has "@compat=host", create a host-specific DateFormat... + if (count > 0 && uprv_strcmp(buffer, "host") == 0) { + Win32DateFormat *f = new Win32DateFormat(timeStyle, dateStyle, locale, status); + + if (U_SUCCESS(status)) { + return f; + } + + delete f; + } +#endif + + // is it relative? + if(/*((timeStyle!=UDAT_NONE)&&(timeStyle & UDAT_RELATIVE)) || */((dateStyle!=kNone)&&((dateStyle-kDateOffset) & UDAT_RELATIVE))) { + RelativeDateFormat *r = new RelativeDateFormat((UDateFormatStyle)timeStyle, (UDateFormatStyle)(dateStyle-kDateOffset), locale, status); + if(U_SUCCESS(status)) return r; + delete r; + status = U_ZERO_ERROR; + } + + // Try to create a SimpleDateFormat of the desired style. + SimpleDateFormat *f = new SimpleDateFormat(timeStyle, dateStyle, locale, status); + if (U_SUCCESS(status)) return f; + delete f; + + // If that fails, try to create a format using the default pattern and + // the DateFormatSymbols for this locale. + status = U_ZERO_ERROR; + f = new SimpleDateFormat(locale, status); + if (U_SUCCESS(status)) return f; + delete f; + + // This should never really happen, because the preceding constructor + // should always succeed. If the resource data is unavailable, a last + // resort object should be returned. + return 0; +} + +//---------------------------------------------------------------------- + +const Locale* U_EXPORT2 +DateFormat::getAvailableLocales(int32_t& count) +{ + // Get the list of installed locales. + // Even if root has the correct date format for this locale, + // it's still a valid locale (we don't worry about data fallbacks). + return Locale::getAvailableLocales(count); +} + +//---------------------------------------------------------------------- + +void +DateFormat::adoptCalendar(Calendar* newCalendar) +{ + delete fCalendar; + fCalendar = newCalendar; +} + +//---------------------------------------------------------------------- +void +DateFormat::setCalendar(const Calendar& newCalendar) +{ + adoptCalendar(newCalendar.clone()); +} + +//---------------------------------------------------------------------- + +const Calendar* +DateFormat::getCalendar() const +{ + return fCalendar; +} + +//---------------------------------------------------------------------- + +void +DateFormat::adoptNumberFormat(NumberFormat* newNumberFormat) +{ + delete fNumberFormat; + fNumberFormat = newNumberFormat; + newNumberFormat->setParseIntegerOnly(TRUE); +} +//---------------------------------------------------------------------- + +void +DateFormat::setNumberFormat(const NumberFormat& newNumberFormat) +{ + adoptNumberFormat((NumberFormat*)newNumberFormat.clone()); +} + +//---------------------------------------------------------------------- + +const NumberFormat* +DateFormat::getNumberFormat() const +{ + return fNumberFormat; +} + +//---------------------------------------------------------------------- + +void +DateFormat::adoptTimeZone(TimeZone* zone) +{ + fCalendar->adoptTimeZone(zone); +} +//---------------------------------------------------------------------- + +void +DateFormat::setTimeZone(const TimeZone& zone) +{ + fCalendar->setTimeZone(zone); +} + +//---------------------------------------------------------------------- + +const TimeZone& +DateFormat::getTimeZone() const +{ + return fCalendar->getTimeZone(); +} + +//---------------------------------------------------------------------- + +void +DateFormat::setLenient(UBool lenient) +{ + fCalendar->setLenient(lenient); +} + +//---------------------------------------------------------------------- + +UBool +DateFormat::isLenient() const +{ + return fCalendar->isLenient(); +} + +U_NAMESPACE_END + +#endif /* #if !UCONFIG_NO_FORMATTING */ + +//eof |