750 lines
21 KiB
C++
750 lines
21 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 1997-2015, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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* File DATEFMT.CPP
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*
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* Modification History:
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*
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* Date Name Description
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* 02/19/97 aliu Converted from java.
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* 03/31/97 aliu Modified extensively to work with 50 locales.
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* 04/01/97 aliu Added support for centuries.
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* 08/12/97 aliu Fixed operator== to use Calendar::equivalentTo.
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* 07/20/98 stephen Changed ParsePosition initialization
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********************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/ures.h"
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#include "unicode/datefmt.h"
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#include "unicode/smpdtfmt.h"
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#include "unicode/dtptngen.h"
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#include "unicode/udisplaycontext.h"
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#include "reldtfmt.h"
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#include "sharedobject.h"
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#include "unifiedcache.h"
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#include "uarrsort.h"
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#include "cstring.h"
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#include "windtfmt.h"
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#if defined( U_DEBUG_CALSVC ) || defined (U_DEBUG_CAL)
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#include <stdio.h>
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#endif
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// *****************************************************************************
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// class DateFormat
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// *****************************************************************************
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U_NAMESPACE_BEGIN
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class U_I18N_API DateFmtBestPattern : public SharedObject {
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public:
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UnicodeString fPattern;
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DateFmtBestPattern(const UnicodeString &pattern)
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: fPattern(pattern) { }
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~DateFmtBestPattern();
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};
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DateFmtBestPattern::~DateFmtBestPattern() {
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}
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template<> U_I18N_API
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const DateFmtBestPattern *LocaleCacheKey<DateFmtBestPattern>::createObject(
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const void * /*creationContext*/, UErrorCode &status) const {
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status = U_UNSUPPORTED_ERROR;
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return NULL;
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}
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class U_I18N_API DateFmtBestPatternKey : public LocaleCacheKey<DateFmtBestPattern> {
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private:
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UnicodeString fSkeleton;
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public:
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DateFmtBestPatternKey(
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const Locale &loc,
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const UnicodeString &skeleton,
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UErrorCode &status)
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: LocaleCacheKey<DateFmtBestPattern>(loc),
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fSkeleton(DateTimePatternGenerator::staticGetSkeleton(skeleton, status)) { }
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DateFmtBestPatternKey(const DateFmtBestPatternKey &other) :
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LocaleCacheKey<DateFmtBestPattern>(other),
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fSkeleton(other.fSkeleton) { }
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virtual ~DateFmtBestPatternKey();
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virtual int32_t hashCode() const {
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return (int32_t)(37u * (uint32_t)LocaleCacheKey<DateFmtBestPattern>::hashCode() + (uint32_t)fSkeleton.hashCode());
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}
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virtual UBool operator==(const CacheKeyBase &other) const {
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// reflexive
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if (this == &other) {
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return TRUE;
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}
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if (!LocaleCacheKey<DateFmtBestPattern>::operator==(other)) {
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return FALSE;
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}
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// We know that this and other are of same class if we get this far.
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const DateFmtBestPatternKey &realOther =
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static_cast<const DateFmtBestPatternKey &>(other);
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return (realOther.fSkeleton == fSkeleton);
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}
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virtual CacheKeyBase *clone() const {
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return new DateFmtBestPatternKey(*this);
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}
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virtual const DateFmtBestPattern *createObject(
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const void * /*unused*/, UErrorCode &status) const {
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LocalPointer<DateTimePatternGenerator> dtpg(
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DateTimePatternGenerator::createInstance(fLoc, status));
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if (U_FAILURE(status)) {
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return NULL;
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}
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LocalPointer<DateFmtBestPattern> pattern(
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new DateFmtBestPattern(
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dtpg->getBestPattern(fSkeleton, status)),
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status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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DateFmtBestPattern *result = pattern.orphan();
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result->addRef();
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return result;
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}
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};
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DateFmtBestPatternKey::~DateFmtBestPatternKey() { }
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DateFormat::DateFormat()
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: fCalendar(0),
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fNumberFormat(0),
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fCapitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
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{
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}
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//----------------------------------------------------------------------
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DateFormat::DateFormat(const DateFormat& other)
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: Format(other),
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fCalendar(0),
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fNumberFormat(0),
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fCapitalizationContext(UDISPCTX_CAPITALIZATION_NONE)
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{
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*this = other;
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}
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//----------------------------------------------------------------------
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DateFormat& DateFormat::operator=(const DateFormat& other)
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{
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if (this != &other)
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{
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delete fCalendar;
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delete fNumberFormat;
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if(other.fCalendar) {
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fCalendar = other.fCalendar->clone();
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} else {
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fCalendar = NULL;
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}
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if(other.fNumberFormat) {
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fNumberFormat = (NumberFormat*)other.fNumberFormat->clone();
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} else {
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fNumberFormat = NULL;
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}
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fBoolFlags = other.fBoolFlags;
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fCapitalizationContext = other.fCapitalizationContext;
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}
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return *this;
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}
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//----------------------------------------------------------------------
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DateFormat::~DateFormat()
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{
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delete fCalendar;
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delete fNumberFormat;
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}
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//----------------------------------------------------------------------
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UBool
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DateFormat::operator==(const Format& other) const
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{
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// This protected comparison operator should only be called by subclasses
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// which have confirmed that the other object being compared against is
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// an instance of a sublcass of DateFormat. THIS IS IMPORTANT.
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// Format::operator== guarantees that this cast is safe
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DateFormat* fmt = (DateFormat*)&other;
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return (this == fmt) ||
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(Format::operator==(other) &&
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fCalendar&&(fCalendar->isEquivalentTo(*fmt->fCalendar)) &&
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(fNumberFormat && *fNumberFormat == *fmt->fNumberFormat) &&
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(fCapitalizationContext == fmt->fCapitalizationContext) );
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}
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//----------------------------------------------------------------------
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UnicodeString&
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DateFormat::format(const Formattable& obj,
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UnicodeString& appendTo,
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FieldPosition& fieldPosition,
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UErrorCode& status) const
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{
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if (U_FAILURE(status)) return appendTo;
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// if the type of the Formattable is double or long, treat it as if it were a Date
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UDate date = 0;
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switch (obj.getType())
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{
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case Formattable::kDate:
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date = obj.getDate();
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break;
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case Formattable::kDouble:
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date = (UDate)obj.getDouble();
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break;
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case Formattable::kLong:
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date = (UDate)obj.getLong();
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break;
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default:
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return appendTo;
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}
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// Is this right?
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//if (fieldPosition.getBeginIndex() == fieldPosition.getEndIndex())
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// status = U_ILLEGAL_ARGUMENT_ERROR;
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return format(date, appendTo, fieldPosition);
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}
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//----------------------------------------------------------------------
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UnicodeString&
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DateFormat::format(const Formattable& obj,
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UnicodeString& appendTo,
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FieldPositionIterator* posIter,
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UErrorCode& status) const
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{
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if (U_FAILURE(status)) return appendTo;
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// if the type of the Formattable is double or long, treat it as if it were a Date
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UDate date = 0;
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switch (obj.getType())
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{
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case Formattable::kDate:
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date = obj.getDate();
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break;
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case Formattable::kDouble:
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date = (UDate)obj.getDouble();
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break;
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case Formattable::kLong:
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date = (UDate)obj.getLong();
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break;
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default:
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return appendTo;
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}
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// Is this right?
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//if (fieldPosition.getBeginIndex() == fieldPosition.getEndIndex())
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// status = U_ILLEGAL_ARGUMENT_ERROR;
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return format(date, appendTo, posIter, status);
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}
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//----------------------------------------------------------------------
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// Default implementation for backwards compatibility, subclasses should implement.
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UnicodeString&
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DateFormat::format(Calendar& /* unused cal */,
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UnicodeString& appendTo,
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FieldPositionIterator* /* unused posIter */,
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UErrorCode& status) const {
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if (U_SUCCESS(status)) {
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status = U_UNSUPPORTED_ERROR;
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}
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return appendTo;
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}
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//----------------------------------------------------------------------
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UnicodeString&
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DateFormat::format(UDate date, UnicodeString& appendTo, FieldPosition& fieldPosition) const {
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if (fCalendar != NULL) {
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// Use a clone of our calendar instance
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Calendar* calClone = fCalendar->clone();
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if (calClone != NULL) {
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UErrorCode ec = U_ZERO_ERROR;
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calClone->setTime(date, ec);
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if (U_SUCCESS(ec)) {
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format(*calClone, appendTo, fieldPosition);
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}
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delete calClone;
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}
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}
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return appendTo;
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}
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//----------------------------------------------------------------------
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UnicodeString&
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DateFormat::format(UDate date, UnicodeString& appendTo, FieldPositionIterator* posIter,
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UErrorCode& status) const {
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if (fCalendar != NULL) {
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Calendar* calClone = fCalendar->clone();
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if (calClone != NULL) {
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calClone->setTime(date, status);
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if (U_SUCCESS(status)) {
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format(*calClone, appendTo, posIter, status);
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}
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delete calClone;
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}
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}
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return appendTo;
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}
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//----------------------------------------------------------------------
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UnicodeString&
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DateFormat::format(UDate date, UnicodeString& appendTo) const
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{
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// Note that any error information is just lost. That's okay
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// for this convenience method.
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FieldPosition fpos(FieldPosition::DONT_CARE);
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return format(date, appendTo, fpos);
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}
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//----------------------------------------------------------------------
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UDate
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DateFormat::parse(const UnicodeString& text,
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ParsePosition& pos) const
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{
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UDate d = 0; // Error return UDate is 0 (the epoch)
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if (fCalendar != NULL) {
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Calendar* calClone = fCalendar->clone();
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if (calClone != NULL) {
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int32_t start = pos.getIndex();
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calClone->clear();
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parse(text, *calClone, pos);
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if (pos.getIndex() != start) {
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UErrorCode ec = U_ZERO_ERROR;
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d = calClone->getTime(ec);
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if (U_FAILURE(ec)) {
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// We arrive here if fCalendar => calClone is non-lenient and
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// there is an out-of-range field. We don't know which field
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// was illegal so we set the error index to the start.
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pos.setIndex(start);
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pos.setErrorIndex(start);
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d = 0;
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}
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}
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delete calClone;
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}
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}
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return d;
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}
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//----------------------------------------------------------------------
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UDate
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DateFormat::parse(const UnicodeString& text,
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UErrorCode& status) const
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{
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if (U_FAILURE(status)) return 0;
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ParsePosition pos(0);
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UDate result = parse(text, pos);
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if (pos.getIndex() == 0) {
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#if defined (U_DEBUG_CAL)
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fprintf(stderr, "%s:%d - - failed to parse - err index %d\n"
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, __FILE__, __LINE__, pos.getErrorIndex() );
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#endif
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status = U_ILLEGAL_ARGUMENT_ERROR;
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}
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return result;
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}
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//----------------------------------------------------------------------
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void
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DateFormat::parseObject(const UnicodeString& source,
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Formattable& result,
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ParsePosition& pos) const
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{
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result.setDate(parse(source, pos));
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}
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//----------------------------------------------------------------------
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DateFormat* U_EXPORT2
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DateFormat::createTimeInstance(DateFormat::EStyle style,
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const Locale& aLocale)
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{
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return createDateTimeInstance(kNone, style, aLocale);
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}
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//----------------------------------------------------------------------
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DateFormat* U_EXPORT2
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DateFormat::createDateInstance(DateFormat::EStyle style,
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const Locale& aLocale)
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{
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return createDateTimeInstance(style, kNone, aLocale);
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}
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//----------------------------------------------------------------------
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DateFormat* U_EXPORT2
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DateFormat::createDateTimeInstance(EStyle dateStyle,
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EStyle timeStyle,
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const Locale& aLocale)
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{
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if(dateStyle != kNone)
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{
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dateStyle = (EStyle) (dateStyle + kDateOffset);
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}
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return create(timeStyle, dateStyle, aLocale);
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}
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//----------------------------------------------------------------------
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DateFormat* U_EXPORT2
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DateFormat::createInstance()
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{
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return createDateTimeInstance(kShort, kShort, Locale::getDefault());
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}
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//----------------------------------------------------------------------
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UnicodeString U_EXPORT2
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DateFormat::getBestPattern(
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const Locale &locale,
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const UnicodeString &skeleton,
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UErrorCode &status) {
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UnifiedCache *cache = UnifiedCache::getInstance(status);
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if (U_FAILURE(status)) {
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return UnicodeString();
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}
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DateFmtBestPatternKey key(locale, skeleton, status);
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const DateFmtBestPattern *patternPtr = NULL;
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cache->get(key, patternPtr, status);
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if (U_FAILURE(status)) {
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return UnicodeString();
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}
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UnicodeString result(patternPtr->fPattern);
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patternPtr->removeRef();
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return result;
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}
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DateFormat* U_EXPORT2
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DateFormat::createInstanceForSkeleton(
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Calendar *calendarToAdopt,
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const UnicodeString& skeleton,
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const Locale &locale,
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UErrorCode &status) {
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LocalPointer<Calendar> calendar(calendarToAdopt);
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if (U_FAILURE(status)) {
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return NULL;
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}
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if (calendar.isNull()) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return NULL;
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}
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DateFormat *result = createInstanceForSkeleton(skeleton, locale, status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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result->adoptCalendar(calendar.orphan());
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return result;
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}
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DateFormat* U_EXPORT2
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DateFormat::createInstanceForSkeleton(
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const UnicodeString& skeleton,
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const Locale &locale,
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UErrorCode &status) {
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if (U_FAILURE(status)) {
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return NULL;
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}
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LocalPointer<DateFormat> df(
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new SimpleDateFormat(
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getBestPattern(locale, skeleton, status),
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locale, status),
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status);
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return U_SUCCESS(status) ? df.orphan() : NULL;
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}
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DateFormat* U_EXPORT2
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DateFormat::createInstanceForSkeleton(
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const UnicodeString& skeleton,
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UErrorCode &status) {
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return createInstanceForSkeleton(
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skeleton, Locale::getDefault(), status);
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}
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//----------------------------------------------------------------------
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DateFormat* U_EXPORT2
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DateFormat::create(EStyle timeStyle, EStyle dateStyle, const Locale& locale)
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{
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UErrorCode status = U_ZERO_ERROR;
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#if U_PLATFORM_USES_ONLY_WIN32_API
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char buffer[8];
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int32_t count = locale.getKeywordValue("compat", buffer, sizeof(buffer), status);
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// if the locale has "@compat=host", create a host-specific DateFormat...
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if (count > 0 && uprv_strcmp(buffer, "host") == 0) {
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Win32DateFormat *f = new Win32DateFormat(timeStyle, dateStyle, locale, status);
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if (U_SUCCESS(status)) {
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return f;
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}
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delete f;
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}
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#endif
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// is it relative?
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if(/*((timeStyle!=UDAT_NONE)&&(timeStyle & UDAT_RELATIVE)) || */((dateStyle!=kNone)&&((dateStyle-kDateOffset) & UDAT_RELATIVE))) {
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RelativeDateFormat *r = new RelativeDateFormat((UDateFormatStyle)timeStyle, (UDateFormatStyle)(dateStyle-kDateOffset), locale, status);
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if(U_SUCCESS(status)) return r;
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delete r;
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status = U_ZERO_ERROR;
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}
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// Try to create a SimpleDateFormat of the desired style.
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SimpleDateFormat *f = new SimpleDateFormat(timeStyle, dateStyle, locale, status);
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if (U_SUCCESS(status)) return f;
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delete f;
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// If that fails, try to create a format using the default pattern and
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// the DateFormatSymbols for this locale.
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status = U_ZERO_ERROR;
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f = new SimpleDateFormat(locale, status);
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if (U_SUCCESS(status)) return f;
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delete f;
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// This should never really happen, because the preceding constructor
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// should always succeed. If the resource data is unavailable, a last
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// resort object should be returned.
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return 0;
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}
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//----------------------------------------------------------------------
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const Locale* U_EXPORT2
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DateFormat::getAvailableLocales(int32_t& count)
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{
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// Get the list of installed locales.
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// Even if root has the correct date format for this locale,
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// it's still a valid locale (we don't worry about data fallbacks).
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return Locale::getAvailableLocales(count);
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}
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//----------------------------------------------------------------------
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void
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DateFormat::adoptCalendar(Calendar* newCalendar)
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{
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delete fCalendar;
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fCalendar = newCalendar;
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}
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//----------------------------------------------------------------------
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void
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DateFormat::setCalendar(const Calendar& newCalendar)
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{
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Calendar* newCalClone = newCalendar.clone();
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if (newCalClone != NULL) {
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adoptCalendar(newCalClone);
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}
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}
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//----------------------------------------------------------------------
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|
const Calendar*
|
|
DateFormat::getCalendar() const
|
|
{
|
|
return fCalendar;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
DateFormat::adoptNumberFormat(NumberFormat* newNumberFormat)
|
|
{
|
|
delete fNumberFormat;
|
|
fNumberFormat = newNumberFormat;
|
|
newNumberFormat->setParseIntegerOnly(TRUE);
|
|
newNumberFormat->setGroupingUsed(FALSE);
|
|
}
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
DateFormat::setNumberFormat(const NumberFormat& newNumberFormat)
|
|
{
|
|
NumberFormat* newNumFmtClone = (NumberFormat*)newNumberFormat.clone();
|
|
if (newNumFmtClone != NULL) {
|
|
adoptNumberFormat(newNumFmtClone);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
const NumberFormat*
|
|
DateFormat::getNumberFormat() const
|
|
{
|
|
return fNumberFormat;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
DateFormat::adoptTimeZone(TimeZone* zone)
|
|
{
|
|
if (fCalendar != NULL) {
|
|
fCalendar->adoptTimeZone(zone);
|
|
}
|
|
}
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
DateFormat::setTimeZone(const TimeZone& zone)
|
|
{
|
|
if (fCalendar != NULL) {
|
|
fCalendar->setTimeZone(zone);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
const TimeZone&
|
|
DateFormat::getTimeZone() const
|
|
{
|
|
if (fCalendar != NULL) {
|
|
return fCalendar->getTimeZone();
|
|
}
|
|
// If calendar doesn't exists, create default timezone.
|
|
// fCalendar is rarely null
|
|
return *(TimeZone::createDefault());
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
DateFormat::setLenient(UBool lenient)
|
|
{
|
|
if (fCalendar != NULL) {
|
|
fCalendar->setLenient(lenient);
|
|
}
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
setBooleanAttribute(UDAT_PARSE_ALLOW_WHITESPACE, lenient, status);
|
|
setBooleanAttribute(UDAT_PARSE_ALLOW_NUMERIC, lenient, status);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UBool
|
|
DateFormat::isLenient() const
|
|
{
|
|
UBool lenient = TRUE;
|
|
if (fCalendar != NULL) {
|
|
lenient = fCalendar->isLenient();
|
|
}
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
return lenient
|
|
&& getBooleanAttribute(UDAT_PARSE_ALLOW_WHITESPACE, status)
|
|
&& getBooleanAttribute(UDAT_PARSE_ALLOW_NUMERIC, status);
|
|
}
|
|
|
|
void
|
|
DateFormat::setCalendarLenient(UBool lenient)
|
|
{
|
|
if (fCalendar != NULL) {
|
|
fCalendar->setLenient(lenient);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UBool
|
|
DateFormat::isCalendarLenient() const
|
|
{
|
|
if (fCalendar != NULL) {
|
|
return fCalendar->isLenient();
|
|
}
|
|
// fCalendar is rarely null
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
void DateFormat::setContext(UDisplayContext value, UErrorCode& status)
|
|
{
|
|
if (U_FAILURE(status))
|
|
return;
|
|
if ( (UDisplayContextType)((uint32_t)value >> 8) == UDISPCTX_TYPE_CAPITALIZATION ) {
|
|
fCapitalizationContext = value;
|
|
} else {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
}
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
UDisplayContext DateFormat::getContext(UDisplayContextType type, UErrorCode& status) const
|
|
{
|
|
if (U_FAILURE(status))
|
|
return (UDisplayContext)0;
|
|
if (type != UDISPCTX_TYPE_CAPITALIZATION) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return (UDisplayContext)0;
|
|
}
|
|
return fCapitalizationContext;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
DateFormat&
|
|
DateFormat::setBooleanAttribute(UDateFormatBooleanAttribute attr,
|
|
UBool newValue,
|
|
UErrorCode &status) {
|
|
if(!fBoolFlags.isValidValue(newValue)) {
|
|
status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
} else {
|
|
fBoolFlags.set(attr, newValue);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UBool
|
|
DateFormat::getBooleanAttribute(UDateFormatBooleanAttribute attr, UErrorCode &/*status*/) const {
|
|
|
|
return static_cast<UBool>(fBoolFlags.get(attr));
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|