1560 lines
56 KiB
C++
1560 lines
56 KiB
C++
// Copyright (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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* Copyright (C) 2008-2016, 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 DTITVFMT.CPP
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*
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*******************************************************************************
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*/
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#include "utypeinfo.h" // for 'typeid' to work
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#include "unicode/dtitvfmt.h"
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#if !UCONFIG_NO_FORMATTING
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//TODO: put in compilation
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//#define DTITVFMT_DEBUG 1
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#include "unicode/calendar.h"
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#include "unicode/dtptngen.h"
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#include "unicode/dtitvinf.h"
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#include "unicode/simpleformatter.h"
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#include "cmemory.h"
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#include "cstring.h"
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#include "dtitv_impl.h"
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#include "mutex.h"
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#include "uresimp.h"
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#ifdef DTITVFMT_DEBUG
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#include <iostream>
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#endif
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U_NAMESPACE_BEGIN
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#ifdef DTITVFMT_DEBUG
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#define PRINTMESG(msg) { std::cout << "(" << __FILE__ << ":" << __LINE__ << ") " << msg << "\n"; }
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#endif
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static const UChar gDateFormatSkeleton[][11] = {
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//yMMMMEEEEd
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{LOW_Y, CAP_M, CAP_M, CAP_M, CAP_M, CAP_E, CAP_E, CAP_E, CAP_E, LOW_D, 0},
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//yMMMMd
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{LOW_Y, CAP_M, CAP_M, CAP_M, CAP_M, LOW_D, 0},
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//yMMMd
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{LOW_Y, CAP_M, CAP_M, CAP_M, LOW_D, 0},
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//yMd
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{LOW_Y, CAP_M, LOW_D, 0} };
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static const char gCalendarTag[] = "calendar";
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static const char gGregorianTag[] = "gregorian";
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static const char gDateTimePatternsTag[] = "DateTimePatterns";
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// latestFirst:
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static const UChar gLaterFirstPrefix[] = {LOW_L, LOW_A, LOW_T, LOW_E, LOW_S,LOW_T, CAP_F, LOW_I, LOW_R, LOW_S, LOW_T, COLON};
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// earliestFirst:
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static const UChar gEarlierFirstPrefix[] = {LOW_E, LOW_A, LOW_R, LOW_L, LOW_I, LOW_E, LOW_S, LOW_T, CAP_F, LOW_I, LOW_R, LOW_S, LOW_T, COLON};
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DateIntervalFormat)
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// Mutex, protects access to fDateFormat, fFromCalendar and fToCalendar.
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// Needed because these data members are modified by const methods of DateIntervalFormat.
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static UMutex gFormatterMutex = U_MUTEX_INITIALIZER;
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DateIntervalFormat* U_EXPORT2
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DateIntervalFormat::createInstance(const UnicodeString& skeleton,
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UErrorCode& status) {
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return createInstance(skeleton, Locale::getDefault(), status);
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}
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DateIntervalFormat* U_EXPORT2
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DateIntervalFormat::createInstance(const UnicodeString& skeleton,
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const Locale& locale,
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UErrorCode& status) {
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#ifdef DTITVFMT_DEBUG
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char result[1000];
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char result_1[1000];
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char mesg[2000];
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skeleton.extract(0, skeleton.length(), result, "UTF-8");
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UnicodeString pat;
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((SimpleDateFormat*)dtfmt)->toPattern(pat);
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pat.extract(0, pat.length(), result_1, "UTF-8");
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sprintf(mesg, "skeleton: %s; pattern: %s\n", result, result_1);
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PRINTMESG(mesg)
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#endif
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DateIntervalInfo* dtitvinf = new DateIntervalInfo(locale, status);
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return create(locale, dtitvinf, &skeleton, status);
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}
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DateIntervalFormat* U_EXPORT2
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DateIntervalFormat::createInstance(const UnicodeString& skeleton,
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const DateIntervalInfo& dtitvinf,
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UErrorCode& status) {
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return createInstance(skeleton, Locale::getDefault(), dtitvinf, status);
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}
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DateIntervalFormat* U_EXPORT2
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DateIntervalFormat::createInstance(const UnicodeString& skeleton,
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const Locale& locale,
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const DateIntervalInfo& dtitvinf,
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UErrorCode& status) {
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DateIntervalInfo* ptn = dtitvinf.clone();
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return create(locale, ptn, &skeleton, status);
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}
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DateIntervalFormat::DateIntervalFormat()
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: fInfo(NULL),
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fDateFormat(NULL),
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fFromCalendar(NULL),
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fToCalendar(NULL),
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fLocale(Locale::getRoot()),
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fDatePattern(NULL),
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fTimePattern(NULL),
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fDateTimeFormat(NULL)
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{}
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DateIntervalFormat::DateIntervalFormat(const DateIntervalFormat& itvfmt)
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: Format(itvfmt),
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fInfo(NULL),
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fDateFormat(NULL),
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fFromCalendar(NULL),
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fToCalendar(NULL),
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fLocale(itvfmt.fLocale),
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fDatePattern(NULL),
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fTimePattern(NULL),
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fDateTimeFormat(NULL) {
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*this = itvfmt;
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}
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DateIntervalFormat&
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DateIntervalFormat::operator=(const DateIntervalFormat& itvfmt) {
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if ( this != &itvfmt ) {
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delete fDateFormat;
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delete fInfo;
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delete fFromCalendar;
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delete fToCalendar;
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delete fDatePattern;
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delete fTimePattern;
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delete fDateTimeFormat;
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{
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Mutex lock(&gFormatterMutex);
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if ( itvfmt.fDateFormat ) {
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fDateFormat = (SimpleDateFormat*)itvfmt.fDateFormat->clone();
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} else {
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fDateFormat = NULL;
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}
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if ( itvfmt.fFromCalendar ) {
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fFromCalendar = itvfmt.fFromCalendar->clone();
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} else {
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fFromCalendar = NULL;
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}
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if ( itvfmt.fToCalendar ) {
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fToCalendar = itvfmt.fToCalendar->clone();
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} else {
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fToCalendar = NULL;
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}
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}
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if ( itvfmt.fInfo ) {
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fInfo = itvfmt.fInfo->clone();
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} else {
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fInfo = NULL;
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}
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fSkeleton = itvfmt.fSkeleton;
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int8_t i;
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for ( i = 0; i< DateIntervalInfo::kIPI_MAX_INDEX; ++i ) {
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fIntervalPatterns[i] = itvfmt.fIntervalPatterns[i];
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}
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fLocale = itvfmt.fLocale;
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fDatePattern = (itvfmt.fDatePattern)? (UnicodeString*)itvfmt.fDatePattern->clone(): NULL;
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fTimePattern = (itvfmt.fTimePattern)? (UnicodeString*)itvfmt.fTimePattern->clone(): NULL;
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fDateTimeFormat = (itvfmt.fDateTimeFormat)? (UnicodeString*)itvfmt.fDateTimeFormat->clone(): NULL;
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}
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return *this;
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}
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DateIntervalFormat::~DateIntervalFormat() {
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delete fInfo;
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delete fDateFormat;
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delete fFromCalendar;
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delete fToCalendar;
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delete fDatePattern;
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delete fTimePattern;
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delete fDateTimeFormat;
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}
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Format*
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DateIntervalFormat::clone(void) const {
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return new DateIntervalFormat(*this);
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}
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UBool
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DateIntervalFormat::operator==(const Format& other) const {
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if (typeid(*this) != typeid(other)) {return FALSE;}
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const DateIntervalFormat* fmt = (DateIntervalFormat*)&other;
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if (this == fmt) {return TRUE;}
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if (!Format::operator==(other)) {return FALSE;}
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if ((fInfo != fmt->fInfo) && (fInfo == NULL || fmt->fInfo == NULL)) {return FALSE;}
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if (fInfo && fmt->fInfo && (*fInfo != *fmt->fInfo )) {return FALSE;}
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{
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Mutex lock(&gFormatterMutex);
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if (fDateFormat != fmt->fDateFormat && (fDateFormat == NULL || fmt->fDateFormat == NULL)) {return FALSE;}
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if (fDateFormat && fmt->fDateFormat && (*fDateFormat != *fmt->fDateFormat)) {return FALSE;}
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}
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// note: fFromCalendar and fToCalendar hold no persistent state, and therefore do not participate in operator ==.
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// fDateFormat has the master calendar for the DateIntervalFormat.
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if (fSkeleton != fmt->fSkeleton) {return FALSE;}
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if (fDatePattern != fmt->fDatePattern && (fDatePattern == NULL || fmt->fDatePattern == NULL)) {return FALSE;}
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if (fDatePattern && fmt->fDatePattern && (*fDatePattern != *fmt->fDatePattern)) {return FALSE;}
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if (fTimePattern != fmt->fTimePattern && (fTimePattern == NULL || fmt->fTimePattern == NULL)) {return FALSE;}
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if (fTimePattern && fmt->fTimePattern && (*fTimePattern != *fmt->fTimePattern)) {return FALSE;}
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if (fDateTimeFormat != fmt->fDateTimeFormat && (fDateTimeFormat == NULL || fmt->fDateTimeFormat == NULL)) {return FALSE;}
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if (fDateTimeFormat && fmt->fDateTimeFormat && (*fDateTimeFormat != *fmt->fDateTimeFormat)) {return FALSE;}
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if (fLocale != fmt->fLocale) {return FALSE;}
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for (int32_t i = 0; i< DateIntervalInfo::kIPI_MAX_INDEX; ++i ) {
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if (fIntervalPatterns[i].firstPart != fmt->fIntervalPatterns[i].firstPart) {return FALSE;}
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if (fIntervalPatterns[i].secondPart != fmt->fIntervalPatterns[i].secondPart ) {return FALSE;}
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if (fIntervalPatterns[i].laterDateFirst != fmt->fIntervalPatterns[i].laterDateFirst) {return FALSE;}
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}
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return TRUE;
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}
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UnicodeString&
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DateIntervalFormat::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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if ( U_FAILURE(status) ) {
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return appendTo;
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}
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if ( obj.getType() == Formattable::kObject ) {
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const UObject* formatObj = obj.getObject();
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const DateInterval* interval = dynamic_cast<const DateInterval*>(formatObj);
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if (interval != NULL) {
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return format(interval, appendTo, fieldPosition, status);
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}
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}
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return appendTo;
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}
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UnicodeString&
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DateIntervalFormat::format(const DateInterval* dtInterval,
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UnicodeString& appendTo,
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FieldPosition& fieldPosition,
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UErrorCode& status) const {
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if ( U_FAILURE(status) ) {
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return appendTo;
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}
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if (fFromCalendar == NULL || fToCalendar == NULL || fDateFormat == NULL || fInfo == NULL) {
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status = U_INVALID_STATE_ERROR;
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return appendTo;
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}
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Mutex lock(&gFormatterMutex);
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fFromCalendar->setTime(dtInterval->getFromDate(), status);
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fToCalendar->setTime(dtInterval->getToDate(), status);
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return formatImpl(*fFromCalendar, *fToCalendar, appendTo,fieldPosition, status);
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}
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UnicodeString&
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DateIntervalFormat::format(Calendar& fromCalendar,
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Calendar& toCalendar,
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UnicodeString& appendTo,
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FieldPosition& pos,
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UErrorCode& status) const {
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Mutex lock(&gFormatterMutex);
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return formatImpl(fromCalendar, toCalendar, appendTo, pos, status);
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}
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UnicodeString&
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DateIntervalFormat::formatImpl(Calendar& fromCalendar,
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Calendar& toCalendar,
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UnicodeString& appendTo,
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FieldPosition& pos,
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UErrorCode& status) const {
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if ( U_FAILURE(status) ) {
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return appendTo;
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}
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// not support different calendar types and time zones
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//if ( fromCalendar.getType() != toCalendar.getType() ) {
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if ( !fromCalendar.isEquivalentTo(toCalendar) ) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return appendTo;
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}
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// First, find the largest different calendar field.
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UCalendarDateFields field = UCAL_FIELD_COUNT;
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if ( fromCalendar.get(UCAL_ERA,status) != toCalendar.get(UCAL_ERA,status)) {
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field = UCAL_ERA;
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} else if ( fromCalendar.get(UCAL_YEAR, status) !=
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toCalendar.get(UCAL_YEAR, status) ) {
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field = UCAL_YEAR;
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} else if ( fromCalendar.get(UCAL_MONTH, status) !=
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toCalendar.get(UCAL_MONTH, status) ) {
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field = UCAL_MONTH;
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} else if ( fromCalendar.get(UCAL_DATE, status) !=
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toCalendar.get(UCAL_DATE, status) ) {
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field = UCAL_DATE;
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} else if ( fromCalendar.get(UCAL_AM_PM, status) !=
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toCalendar.get(UCAL_AM_PM, status) ) {
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field = UCAL_AM_PM;
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} else if ( fromCalendar.get(UCAL_HOUR, status) !=
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toCalendar.get(UCAL_HOUR, status) ) {
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field = UCAL_HOUR;
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} else if ( fromCalendar.get(UCAL_MINUTE, status) !=
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toCalendar.get(UCAL_MINUTE, status) ) {
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field = UCAL_MINUTE;
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} else if ( fromCalendar.get(UCAL_SECOND, status) !=
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toCalendar.get(UCAL_SECOND, status) ) {
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field = UCAL_SECOND;
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}
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if ( U_FAILURE(status) ) {
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return appendTo;
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}
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if ( field == UCAL_FIELD_COUNT ) {
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/* ignore the millisecond etc. small fields' difference.
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* use single date when all the above are the same.
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*/
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return fDateFormat->format(fromCalendar, appendTo, pos);
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}
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UBool fromToOnSameDay = (field==UCAL_AM_PM || field==UCAL_HOUR || field==UCAL_MINUTE || field==UCAL_SECOND);
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// following call should not set wrong status,
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// all the pass-in fields are valid till here
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int32_t itvPtnIndex = DateIntervalInfo::calendarFieldToIntervalIndex(field,
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status);
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const PatternInfo& intervalPattern = fIntervalPatterns[itvPtnIndex];
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if ( intervalPattern.firstPart.isEmpty() &&
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intervalPattern.secondPart.isEmpty() ) {
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if ( fDateFormat->isFieldUnitIgnored(field) ) {
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/* the largest different calendar field is small than
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* the smallest calendar field in pattern,
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* return single date format.
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*/
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return fDateFormat->format(fromCalendar, appendTo, pos);
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}
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return fallbackFormat(fromCalendar, toCalendar, fromToOnSameDay, appendTo, pos, status);
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}
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// If the first part in interval pattern is empty,
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// the 2nd part of it saves the full-pattern used in fall-back.
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// For a 'real' interval pattern, the first part will never be empty.
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if ( intervalPattern.firstPart.isEmpty() ) {
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// fall back
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UnicodeString originalPattern;
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fDateFormat->toPattern(originalPattern);
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fDateFormat->applyPattern(intervalPattern.secondPart);
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appendTo = fallbackFormat(fromCalendar, toCalendar, fromToOnSameDay, appendTo, pos, status);
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fDateFormat->applyPattern(originalPattern);
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return appendTo;
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}
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Calendar* firstCal;
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Calendar* secondCal;
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if ( intervalPattern.laterDateFirst ) {
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firstCal = &toCalendar;
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secondCal = &fromCalendar;
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} else {
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firstCal = &fromCalendar;
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secondCal = &toCalendar;
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}
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// break the interval pattern into 2 parts,
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// first part should not be empty,
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UnicodeString originalPattern;
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fDateFormat->toPattern(originalPattern);
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fDateFormat->applyPattern(intervalPattern.firstPart);
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fDateFormat->format(*firstCal, appendTo, pos);
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if ( !intervalPattern.secondPart.isEmpty() ) {
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fDateFormat->applyPattern(intervalPattern.secondPart);
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FieldPosition otherPos;
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otherPos.setField(pos.getField());
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fDateFormat->format(*secondCal, appendTo, otherPos);
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if (pos.getEndIndex() == 0 && otherPos.getEndIndex() > 0) {
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pos = otherPos;
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}
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}
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fDateFormat->applyPattern(originalPattern);
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return appendTo;
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}
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void
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DateIntervalFormat::parseObject(const UnicodeString& /* source */,
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Formattable& /* result */,
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ParsePosition& /* parse_pos */) const {
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// parseObject(const UnicodeString&, Formattable&, UErrorCode&) const
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// will set status as U_INVALID_FORMAT_ERROR if
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// parse_pos is still 0
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}
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const DateIntervalInfo*
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DateIntervalFormat::getDateIntervalInfo() const {
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return fInfo;
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}
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void
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DateIntervalFormat::setDateIntervalInfo(const DateIntervalInfo& newItvPattern,
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UErrorCode& status) {
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delete fInfo;
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fInfo = new DateIntervalInfo(newItvPattern);
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// Delete patterns that get reset by initializePattern
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delete fDatePattern;
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fDatePattern = NULL;
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delete fTimePattern;
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fTimePattern = NULL;
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delete fDateTimeFormat;
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fDateTimeFormat = NULL;
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if (fDateFormat) {
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initializePattern(status);
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}
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}
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const DateFormat*
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DateIntervalFormat::getDateFormat() const {
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return fDateFormat;
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}
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void
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DateIntervalFormat::adoptTimeZone(TimeZone* zone)
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{
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if (fDateFormat != NULL) {
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fDateFormat->adoptTimeZone(zone);
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}
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// The fDateFormat has the master calendar for the DateIntervalFormat and has
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// ownership of any adopted TimeZone; fFromCalendar and fToCalendar are internal
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// work clones of that calendar (and should not also be given ownership of the
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// adopted TimeZone).
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if (fFromCalendar) {
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fFromCalendar->setTimeZone(*zone);
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}
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if (fToCalendar) {
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fToCalendar->setTimeZone(*zone);
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}
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}
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void
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DateIntervalFormat::setTimeZone(const TimeZone& zone)
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{
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if (fDateFormat != NULL) {
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fDateFormat->setTimeZone(zone);
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}
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// The fDateFormat has the master calendar for the DateIntervalFormat;
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// fFromCalendar and fToCalendar are internal work clones of that calendar.
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if (fFromCalendar) {
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fFromCalendar->setTimeZone(zone);
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}
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if (fToCalendar) {
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fToCalendar->setTimeZone(zone);
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}
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}
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const TimeZone&
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DateIntervalFormat::getTimeZone() const
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{
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if (fDateFormat != NULL) {
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Mutex lock(&gFormatterMutex);
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return fDateFormat->getTimeZone();
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}
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// If fDateFormat is NULL (unexpected), create default timezone.
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return *(TimeZone::createDefault());
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}
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DateIntervalFormat::DateIntervalFormat(const Locale& locale,
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DateIntervalInfo* dtItvInfo,
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const UnicodeString* skeleton,
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UErrorCode& status)
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: fInfo(NULL),
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fDateFormat(NULL),
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fFromCalendar(NULL),
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fToCalendar(NULL),
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|
fLocale(locale),
|
|
fDatePattern(NULL),
|
|
fTimePattern(NULL),
|
|
fDateTimeFormat(NULL)
|
|
{
|
|
LocalPointer<DateIntervalInfo> info(dtItvInfo, status);
|
|
LocalPointer<SimpleDateFormat> dtfmt(static_cast<SimpleDateFormat *>(
|
|
DateFormat::createInstanceForSkeleton(*skeleton, locale, status)), status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
|
|
if ( skeleton ) {
|
|
fSkeleton = *skeleton;
|
|
}
|
|
fInfo = info.orphan();
|
|
fDateFormat = dtfmt.orphan();
|
|
if ( fDateFormat->getCalendar() ) {
|
|
fFromCalendar = fDateFormat->getCalendar()->clone();
|
|
fToCalendar = fDateFormat->getCalendar()->clone();
|
|
}
|
|
initializePattern(status);
|
|
}
|
|
|
|
DateIntervalFormat* U_EXPORT2
|
|
DateIntervalFormat::create(const Locale& locale,
|
|
DateIntervalInfo* dtitvinf,
|
|
const UnicodeString* skeleton,
|
|
UErrorCode& status) {
|
|
DateIntervalFormat* f = new DateIntervalFormat(locale, dtitvinf,
|
|
skeleton, status);
|
|
if ( f == NULL ) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
delete dtitvinf;
|
|
} else if ( U_FAILURE(status) ) {
|
|
// safe to delete f, although nothing acutally is saved
|
|
delete f;
|
|
f = 0;
|
|
}
|
|
return f;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Initialize interval patterns locale to this formatter
|
|
*
|
|
* This code is a bit complicated since
|
|
* 1. the interval patterns saved in resource bundle files are interval
|
|
* patterns based on date or time only.
|
|
* It does not have interval patterns based on both date and time.
|
|
* Interval patterns on both date and time are algorithm generated.
|
|
*
|
|
* For example, it has interval patterns on skeleton "dMy" and "hm",
|
|
* but it does not have interval patterns on skeleton "dMyhm".
|
|
*
|
|
* The rule to genearte interval patterns for both date and time skeleton are
|
|
* 1) when the year, month, or day differs, concatenate the two original
|
|
* expressions with a separator between,
|
|
* For example, interval pattern from "Jan 10, 2007 10:10 am"
|
|
* to "Jan 11, 2007 10:10am" is
|
|
* "Jan 10, 2007 10:10 am - Jan 11, 2007 10:10am"
|
|
*
|
|
* 2) otherwise, present the date followed by the range expression
|
|
* for the time.
|
|
* For example, interval pattern from "Jan 10, 2007 10:10 am"
|
|
* to "Jan 10, 2007 11:10am" is
|
|
* "Jan 10, 2007 10:10 am - 11:10am"
|
|
*
|
|
* 2. even a pattern does not request a certion calendar field,
|
|
* the interval pattern needs to include such field if such fields are
|
|
* different between 2 dates.
|
|
* For example, a pattern/skeleton is "hm", but the interval pattern
|
|
* includes year, month, and date when year, month, and date differs.
|
|
*
|
|
* @param status output param set to success/failure code on exit
|
|
* @stable ICU 4.0
|
|
*/
|
|
void
|
|
DateIntervalFormat::initializePattern(UErrorCode& status) {
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
const Locale& locale = fDateFormat->getSmpFmtLocale();
|
|
if ( fSkeleton.isEmpty() ) {
|
|
UnicodeString fullPattern;
|
|
fDateFormat->toPattern(fullPattern);
|
|
#ifdef DTITVFMT_DEBUG
|
|
char result[1000];
|
|
char result_1[1000];
|
|
char mesg[2000];
|
|
fSkeleton.extract(0, fSkeleton.length(), result, "UTF-8");
|
|
sprintf(mesg, "in getBestSkeleton: fSkeleton: %s; \n", result);
|
|
PRINTMESG(mesg)
|
|
#endif
|
|
// fSkeleton is already set by createDateIntervalInstance()
|
|
// or by createInstance(UnicodeString skeleton, .... )
|
|
fSkeleton = DateTimePatternGenerator::staticGetSkeleton(
|
|
fullPattern, status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// initialize the fIntervalPattern ordering
|
|
int8_t i;
|
|
for ( i = 0; i < DateIntervalInfo::kIPI_MAX_INDEX; ++i ) {
|
|
fIntervalPatterns[i].laterDateFirst = fInfo->getDefaultOrder();
|
|
}
|
|
|
|
/* Check whether the skeleton is a combination of date and time.
|
|
* For the complication reason 1 explained above.
|
|
*/
|
|
UnicodeString dateSkeleton;
|
|
UnicodeString timeSkeleton;
|
|
UnicodeString normalizedTimeSkeleton;
|
|
UnicodeString normalizedDateSkeleton;
|
|
|
|
|
|
/* the difference between time skeleton and normalizedTimeSkeleton are:
|
|
* 1. (Formerly, normalized time skeleton folded 'H' to 'h'; no longer true)
|
|
* 2. 'a' is omitted in normalized time skeleton.
|
|
* 3. there is only one appearance for 'h' or 'H', 'm','v', 'z' in normalized
|
|
* time skeleton
|
|
*
|
|
* The difference between date skeleton and normalizedDateSkeleton are:
|
|
* 1. both 'y' and 'd' appear only once in normalizeDateSkeleton
|
|
* 2. 'E' and 'EE' are normalized into 'EEE'
|
|
* 3. 'MM' is normalized into 'M'
|
|
*/
|
|
getDateTimeSkeleton(fSkeleton, dateSkeleton, normalizedDateSkeleton,
|
|
timeSkeleton, normalizedTimeSkeleton);
|
|
|
|
#ifdef DTITVFMT_DEBUG
|
|
char result[1000];
|
|
char result_1[1000];
|
|
char mesg[2000];
|
|
fSkeleton.extract(0, fSkeleton.length(), result, "UTF-8");
|
|
sprintf(mesg, "in getBestSkeleton: fSkeleton: %s; \n", result);
|
|
PRINTMESG(mesg)
|
|
#endif
|
|
|
|
// move this up here since we need it for fallbacks
|
|
if ( timeSkeleton.length() > 0 && dateSkeleton.length() > 0 ) {
|
|
// Need the Date/Time pattern for concatenation of the date
|
|
// with the time interval.
|
|
// The date/time pattern ( such as {0} {1} ) is saved in
|
|
// calendar, that is why need to get the CalendarData here.
|
|
LocalUResourceBundlePointer dateTimePatternsRes(ures_open(NULL, locale.getBaseName(), &status));
|
|
ures_getByKey(dateTimePatternsRes.getAlias(), gCalendarTag,
|
|
dateTimePatternsRes.getAlias(), &status);
|
|
ures_getByKeyWithFallback(dateTimePatternsRes.getAlias(), gGregorianTag,
|
|
dateTimePatternsRes.getAlias(), &status);
|
|
ures_getByKeyWithFallback(dateTimePatternsRes.getAlias(), gDateTimePatternsTag,
|
|
dateTimePatternsRes.getAlias(), &status);
|
|
|
|
int32_t dateTimeFormatLength;
|
|
const UChar* dateTimeFormat = ures_getStringByIndex(
|
|
dateTimePatternsRes.getAlias(),
|
|
(int32_t)DateFormat::kDateTime,
|
|
&dateTimeFormatLength, &status);
|
|
if ( U_SUCCESS(status) && dateTimeFormatLength >= 3 ) {
|
|
fDateTimeFormat = new UnicodeString(dateTimeFormat, dateTimeFormatLength);
|
|
}
|
|
}
|
|
|
|
UBool found = setSeparateDateTimePtn(normalizedDateSkeleton,
|
|
normalizedTimeSkeleton);
|
|
|
|
// for skeletons with seconds, found is false and we enter this block
|
|
if ( found == false ) {
|
|
// use fallback
|
|
// TODO: if user asks "m"(minute), but "d"(day) differ
|
|
if ( timeSkeleton.length() != 0 ) {
|
|
if ( dateSkeleton.length() == 0 ) {
|
|
// prefix with yMd
|
|
timeSkeleton.insert(0, gDateFormatSkeleton[DateFormat::kShort], -1);
|
|
UnicodeString pattern = DateFormat::getBestPattern(
|
|
locale, timeSkeleton, status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
// for fall back interval patterns,
|
|
// the first part of the pattern is empty,
|
|
// the second part of the pattern is the full-pattern
|
|
// should be used in fall-back.
|
|
setPatternInfo(UCAL_DATE, NULL, &pattern, fInfo->getDefaultOrder());
|
|
setPatternInfo(UCAL_MONTH, NULL, &pattern, fInfo->getDefaultOrder());
|
|
setPatternInfo(UCAL_YEAR, NULL, &pattern, fInfo->getDefaultOrder());
|
|
} else {
|
|
// TODO: fall back
|
|
}
|
|
} else {
|
|
// TODO: fall back
|
|
}
|
|
return;
|
|
} // end of skeleton not found
|
|
// interval patterns for skeleton are found in resource
|
|
if ( timeSkeleton.length() == 0 ) {
|
|
// done
|
|
} else if ( dateSkeleton.length() == 0 ) {
|
|
// prefix with yMd
|
|
timeSkeleton.insert(0, gDateFormatSkeleton[DateFormat::kShort], -1);
|
|
UnicodeString pattern = DateFormat::getBestPattern(
|
|
locale, timeSkeleton, status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
// for fall back interval patterns,
|
|
// the first part of the pattern is empty,
|
|
// the second part of the pattern is the full-pattern
|
|
// should be used in fall-back.
|
|
setPatternInfo(UCAL_DATE, NULL, &pattern, fInfo->getDefaultOrder());
|
|
setPatternInfo(UCAL_MONTH, NULL, &pattern, fInfo->getDefaultOrder());
|
|
setPatternInfo(UCAL_YEAR, NULL, &pattern, fInfo->getDefaultOrder());
|
|
} else {
|
|
/* if both present,
|
|
* 1) when the year, month, or day differs,
|
|
* concatenate the two original expressions with a separator between,
|
|
* 2) otherwise, present the date followed by the
|
|
* range expression for the time.
|
|
*/
|
|
/*
|
|
* 1) when the year, month, or day differs,
|
|
* concatenate the two original expressions with a separator between,
|
|
*/
|
|
// if field exists, use fall back
|
|
UnicodeString skeleton = fSkeleton;
|
|
if ( !fieldExistsInSkeleton(UCAL_DATE, dateSkeleton) ) {
|
|
// prefix skeleton with 'd'
|
|
skeleton.insert(0, LOW_D);
|
|
setFallbackPattern(UCAL_DATE, skeleton, status);
|
|
}
|
|
if ( !fieldExistsInSkeleton(UCAL_MONTH, dateSkeleton) ) {
|
|
// then prefix skeleton with 'M'
|
|
skeleton.insert(0, CAP_M);
|
|
setFallbackPattern(UCAL_MONTH, skeleton, status);
|
|
}
|
|
if ( !fieldExistsInSkeleton(UCAL_YEAR, dateSkeleton) ) {
|
|
// then prefix skeleton with 'y'
|
|
skeleton.insert(0, LOW_Y);
|
|
setFallbackPattern(UCAL_YEAR, skeleton, status);
|
|
}
|
|
|
|
/*
|
|
* 2) otherwise, present the date followed by the
|
|
* range expression for the time.
|
|
*/
|
|
|
|
if ( fDateTimeFormat == NULL ) {
|
|
// earlier failure getting dateTimeFormat
|
|
return;
|
|
}
|
|
|
|
UnicodeString datePattern = DateFormat::getBestPattern(
|
|
locale, dateSkeleton, status);
|
|
|
|
concatSingleDate2TimeInterval(*fDateTimeFormat, datePattern, UCAL_AM_PM, status);
|
|
concatSingleDate2TimeInterval(*fDateTimeFormat, datePattern, UCAL_HOUR, status);
|
|
concatSingleDate2TimeInterval(*fDateTimeFormat, datePattern, UCAL_MINUTE, status);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void U_EXPORT2
|
|
DateIntervalFormat::getDateTimeSkeleton(const UnicodeString& skeleton,
|
|
UnicodeString& dateSkeleton,
|
|
UnicodeString& normalizedDateSkeleton,
|
|
UnicodeString& timeSkeleton,
|
|
UnicodeString& normalizedTimeSkeleton) {
|
|
// dateSkeleton follows the sequence of y*M*E*d*
|
|
// timeSkeleton follows the sequence of hm*[v|z]?
|
|
int32_t ECount = 0;
|
|
int32_t dCount = 0;
|
|
int32_t MCount = 0;
|
|
int32_t yCount = 0;
|
|
int32_t hCount = 0;
|
|
int32_t HCount = 0;
|
|
int32_t mCount = 0;
|
|
int32_t vCount = 0;
|
|
int32_t zCount = 0;
|
|
int32_t i;
|
|
|
|
for (i = 0; i < skeleton.length(); ++i) {
|
|
UChar ch = skeleton[i];
|
|
switch ( ch ) {
|
|
case CAP_E:
|
|
dateSkeleton.append(ch);
|
|
++ECount;
|
|
break;
|
|
case LOW_D:
|
|
dateSkeleton.append(ch);
|
|
++dCount;
|
|
break;
|
|
case CAP_M:
|
|
dateSkeleton.append(ch);
|
|
++MCount;
|
|
break;
|
|
case LOW_Y:
|
|
dateSkeleton.append(ch);
|
|
++yCount;
|
|
break;
|
|
case CAP_G:
|
|
case CAP_Y:
|
|
case LOW_U:
|
|
case CAP_Q:
|
|
case LOW_Q:
|
|
case CAP_L:
|
|
case LOW_L:
|
|
case CAP_W:
|
|
case LOW_W:
|
|
case CAP_D:
|
|
case CAP_F:
|
|
case LOW_G:
|
|
case LOW_E:
|
|
case LOW_C:
|
|
case CAP_U:
|
|
case LOW_R:
|
|
normalizedDateSkeleton.append(ch);
|
|
dateSkeleton.append(ch);
|
|
break;
|
|
case LOW_A:
|
|
// 'a' is implicitly handled
|
|
timeSkeleton.append(ch);
|
|
break;
|
|
case LOW_H:
|
|
timeSkeleton.append(ch);
|
|
++hCount;
|
|
break;
|
|
case CAP_H:
|
|
timeSkeleton.append(ch);
|
|
++HCount;
|
|
break;
|
|
case LOW_M:
|
|
timeSkeleton.append(ch);
|
|
++mCount;
|
|
break;
|
|
case LOW_Z:
|
|
++zCount;
|
|
timeSkeleton.append(ch);
|
|
break;
|
|
case LOW_V:
|
|
++vCount;
|
|
timeSkeleton.append(ch);
|
|
break;
|
|
case CAP_V:
|
|
case CAP_Z:
|
|
case LOW_K:
|
|
case CAP_K:
|
|
case LOW_J:
|
|
case LOW_S:
|
|
case CAP_S:
|
|
case CAP_A:
|
|
timeSkeleton.append(ch);
|
|
normalizedTimeSkeleton.append(ch);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* generate normalized form for date*/
|
|
if ( yCount != 0 ) {
|
|
for (i = 0; i < yCount; ++i) {
|
|
normalizedDateSkeleton.append(LOW_Y);
|
|
}
|
|
}
|
|
if ( MCount != 0 ) {
|
|
if ( MCount < 3 ) {
|
|
normalizedDateSkeleton.append(CAP_M);
|
|
} else {
|
|
int32_t i;
|
|
for ( i = 0; i < MCount && i < MAX_M_COUNT; ++i ) {
|
|
normalizedDateSkeleton.append(CAP_M);
|
|
}
|
|
}
|
|
}
|
|
if ( ECount != 0 ) {
|
|
if ( ECount <= 3 ) {
|
|
normalizedDateSkeleton.append(CAP_E);
|
|
} else {
|
|
int32_t i;
|
|
for ( i = 0; i < ECount && i < MAX_E_COUNT; ++i ) {
|
|
normalizedDateSkeleton.append(CAP_E);
|
|
}
|
|
}
|
|
}
|
|
if ( dCount != 0 ) {
|
|
normalizedDateSkeleton.append(LOW_D);
|
|
}
|
|
|
|
/* generate normalized form for time */
|
|
if ( HCount != 0 ) {
|
|
normalizedTimeSkeleton.append(CAP_H);
|
|
}
|
|
else if ( hCount != 0 ) {
|
|
normalizedTimeSkeleton.append(LOW_H);
|
|
}
|
|
if ( mCount != 0 ) {
|
|
normalizedTimeSkeleton.append(LOW_M);
|
|
}
|
|
if ( zCount != 0 ) {
|
|
normalizedTimeSkeleton.append(LOW_Z);
|
|
}
|
|
if ( vCount != 0 ) {
|
|
normalizedTimeSkeleton.append(LOW_V);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Generate date or time interval pattern from resource,
|
|
* and set them into the interval pattern locale to this formatter.
|
|
*
|
|
* It needs to handle the following:
|
|
* 1. need to adjust field width.
|
|
* For example, the interval patterns saved in DateIntervalInfo
|
|
* includes "dMMMy", but not "dMMMMy".
|
|
* Need to get interval patterns for dMMMMy from dMMMy.
|
|
* Another example, the interval patterns saved in DateIntervalInfo
|
|
* includes "hmv", but not "hmz".
|
|
* Need to get interval patterns for "hmz' from 'hmv'
|
|
*
|
|
* 2. there might be no pattern for 'y' differ for skeleton "Md",
|
|
* in order to get interval patterns for 'y' differ,
|
|
* need to look for it from skeleton 'yMd'
|
|
*
|
|
* @param dateSkeleton normalized date skeleton
|
|
* @param timeSkeleton normalized time skeleton
|
|
* @return whether the resource is found for the skeleton.
|
|
* TRUE if interval pattern found for the skeleton,
|
|
* FALSE otherwise.
|
|
* @stable ICU 4.0
|
|
*/
|
|
UBool
|
|
DateIntervalFormat::setSeparateDateTimePtn(
|
|
const UnicodeString& dateSkeleton,
|
|
const UnicodeString& timeSkeleton) {
|
|
const UnicodeString* skeleton;
|
|
// if both date and time skeleton present,
|
|
// the final interval pattern might include time interval patterns
|
|
// ( when, am_pm, hour, minute differ ),
|
|
// but not date interval patterns ( when year, month, day differ ).
|
|
// For year/month/day differ, it falls back to fall-back pattern.
|
|
if ( timeSkeleton.length() != 0 ) {
|
|
skeleton = &timeSkeleton;
|
|
} else {
|
|
skeleton = &dateSkeleton;
|
|
}
|
|
|
|
/* interval patterns for skeleton "dMMMy" (but not "dMMMMy")
|
|
* are defined in resource,
|
|
* interval patterns for skeleton "dMMMMy" are calculated by
|
|
* 1. get the best match skeleton for "dMMMMy", which is "dMMMy"
|
|
* 2. get the interval patterns for "dMMMy",
|
|
* 3. extend "MMM" to "MMMM" in above interval patterns for "dMMMMy"
|
|
* getBestSkeleton() is step 1.
|
|
*/
|
|
// best skeleton, and the difference information
|
|
int8_t differenceInfo = 0;
|
|
const UnicodeString* bestSkeleton = fInfo->getBestSkeleton(*skeleton,
|
|
differenceInfo);
|
|
/* best skeleton could be NULL.
|
|
For example: in "ca" resource file,
|
|
interval format is defined as following
|
|
intervalFormats{
|
|
fallback{"{0} - {1}"}
|
|
}
|
|
there is no skeletons/interval patterns defined,
|
|
and the best skeleton match could be NULL
|
|
*/
|
|
if ( bestSkeleton == NULL ) {
|
|
return false;
|
|
}
|
|
|
|
// Set patterns for fallback use, need to do this
|
|
// before returning if differenceInfo == -1
|
|
UErrorCode status;
|
|
if ( dateSkeleton.length() != 0) {
|
|
status = U_ZERO_ERROR;
|
|
fDatePattern = new UnicodeString(DateFormat::getBestPattern(
|
|
fLocale, dateSkeleton, status));
|
|
}
|
|
if ( timeSkeleton.length() != 0) {
|
|
status = U_ZERO_ERROR;
|
|
fTimePattern = new UnicodeString(DateFormat::getBestPattern(
|
|
fLocale, timeSkeleton, status));
|
|
}
|
|
|
|
// difference:
|
|
// 0 means the best matched skeleton is the same as input skeleton
|
|
// 1 means the fields are the same, but field width are different
|
|
// 2 means the only difference between fields are v/z,
|
|
// -1 means there are other fields difference
|
|
// (this will happen, for instance, if the supplied skeleton has seconds,
|
|
// but no skeletons in the intervalFormats data do)
|
|
if ( differenceInfo == -1 ) {
|
|
// skeleton has different fields, not only v/z difference
|
|
return false;
|
|
}
|
|
|
|
if ( timeSkeleton.length() == 0 ) {
|
|
UnicodeString extendedSkeleton;
|
|
UnicodeString extendedBestSkeleton;
|
|
// only has date skeleton
|
|
setIntervalPattern(UCAL_DATE, skeleton, bestSkeleton, differenceInfo,
|
|
&extendedSkeleton, &extendedBestSkeleton);
|
|
|
|
UBool extended = setIntervalPattern(UCAL_MONTH, skeleton, bestSkeleton,
|
|
differenceInfo,
|
|
&extendedSkeleton, &extendedBestSkeleton);
|
|
|
|
if ( extended ) {
|
|
bestSkeleton = &extendedBestSkeleton;
|
|
skeleton = &extendedSkeleton;
|
|
}
|
|
setIntervalPattern(UCAL_YEAR, skeleton, bestSkeleton, differenceInfo,
|
|
&extendedSkeleton, &extendedBestSkeleton);
|
|
} else {
|
|
setIntervalPattern(UCAL_MINUTE, skeleton, bestSkeleton, differenceInfo);
|
|
setIntervalPattern(UCAL_HOUR, skeleton, bestSkeleton, differenceInfo);
|
|
setIntervalPattern(UCAL_AM_PM, skeleton, bestSkeleton, differenceInfo);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
DateIntervalFormat::setFallbackPattern(UCalendarDateFields field,
|
|
const UnicodeString& skeleton,
|
|
UErrorCode& status) {
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
UnicodeString pattern = DateFormat::getBestPattern(
|
|
fLocale, skeleton, status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
setPatternInfo(field, NULL, &pattern, fInfo->getDefaultOrder());
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
|
DateIntervalFormat::setPatternInfo(UCalendarDateFields field,
|
|
const UnicodeString* firstPart,
|
|
const UnicodeString* secondPart,
|
|
UBool laterDateFirst) {
|
|
// for fall back interval patterns,
|
|
// the first part of the pattern is empty,
|
|
// the second part of the pattern is the full-pattern
|
|
// should be used in fall-back.
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
// following should not set any wrong status.
|
|
int32_t itvPtnIndex = DateIntervalInfo::calendarFieldToIntervalIndex(field,
|
|
status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
PatternInfo& ptn = fIntervalPatterns[itvPtnIndex];
|
|
if ( firstPart ) {
|
|
ptn.firstPart = *firstPart;
|
|
}
|
|
if ( secondPart ) {
|
|
ptn.secondPart = *secondPart;
|
|
}
|
|
ptn.laterDateFirst = laterDateFirst;
|
|
}
|
|
|
|
void
|
|
DateIntervalFormat::setIntervalPattern(UCalendarDateFields field,
|
|
const UnicodeString& intervalPattern) {
|
|
UBool order = fInfo->getDefaultOrder();
|
|
setIntervalPattern(field, intervalPattern, order);
|
|
}
|
|
|
|
|
|
void
|
|
DateIntervalFormat::setIntervalPattern(UCalendarDateFields field,
|
|
const UnicodeString& intervalPattern,
|
|
UBool laterDateFirst) {
|
|
const UnicodeString* pattern = &intervalPattern;
|
|
UBool order = laterDateFirst;
|
|
// check for "latestFirst:" or "earliestFirst:" prefix
|
|
int8_t prefixLength = UPRV_LENGTHOF(gLaterFirstPrefix);
|
|
int8_t earliestFirstLength = UPRV_LENGTHOF(gEarlierFirstPrefix);
|
|
UnicodeString realPattern;
|
|
if ( intervalPattern.startsWith(gLaterFirstPrefix, prefixLength) ) {
|
|
order = true;
|
|
intervalPattern.extract(prefixLength,
|
|
intervalPattern.length() - prefixLength,
|
|
realPattern);
|
|
pattern = &realPattern;
|
|
} else if ( intervalPattern.startsWith(gEarlierFirstPrefix,
|
|
earliestFirstLength) ) {
|
|
order = false;
|
|
intervalPattern.extract(earliestFirstLength,
|
|
intervalPattern.length() - earliestFirstLength,
|
|
realPattern);
|
|
pattern = &realPattern;
|
|
}
|
|
|
|
int32_t splitPoint = splitPatternInto2Part(*pattern);
|
|
|
|
UnicodeString firstPart;
|
|
UnicodeString secondPart;
|
|
pattern->extract(0, splitPoint, firstPart);
|
|
if ( splitPoint < pattern->length() ) {
|
|
pattern->extract(splitPoint, pattern->length()-splitPoint, secondPart);
|
|
}
|
|
setPatternInfo(field, &firstPart, &secondPart, order);
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Generate interval pattern from existing resource
|
|
*
|
|
* It not only save the interval patterns,
|
|
* but also return the extended skeleton and its best match skeleton.
|
|
*
|
|
* @param field largest different calendar field
|
|
* @param skeleton skeleton
|
|
* @param bestSkeleton the best match skeleton which has interval pattern
|
|
* defined in resource
|
|
* @param differenceInfo the difference between skeleton and best skeleton
|
|
* 0 means the best matched skeleton is the same as input skeleton
|
|
* 1 means the fields are the same, but field width are different
|
|
* 2 means the only difference between fields are v/z,
|
|
* -1 means there are other fields difference
|
|
*
|
|
* @param extendedSkeleton extended skeleton
|
|
* @param extendedBestSkeleton extended best match skeleton
|
|
* @return whether the interval pattern is found
|
|
* through extending skeleton or not.
|
|
* TRUE if interval pattern is found by
|
|
* extending skeleton, FALSE otherwise.
|
|
* @stable ICU 4.0
|
|
*/
|
|
UBool
|
|
DateIntervalFormat::setIntervalPattern(UCalendarDateFields field,
|
|
const UnicodeString* skeleton,
|
|
const UnicodeString* bestSkeleton,
|
|
int8_t differenceInfo,
|
|
UnicodeString* extendedSkeleton,
|
|
UnicodeString* extendedBestSkeleton) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
// following getIntervalPattern() should not generate error status
|
|
UnicodeString pattern;
|
|
fInfo->getIntervalPattern(*bestSkeleton, field, pattern, status);
|
|
if ( pattern.isEmpty() ) {
|
|
// single date
|
|
if ( SimpleDateFormat::isFieldUnitIgnored(*bestSkeleton, field) ) {
|
|
// do nothing, format will handle it
|
|
return false;
|
|
}
|
|
|
|
// for 24 hour system, interval patterns in resource file
|
|
// might not include pattern when am_pm differ,
|
|
// which should be the same as hour differ.
|
|
// add it here for simplicity
|
|
if ( field == UCAL_AM_PM ) {
|
|
fInfo->getIntervalPattern(*bestSkeleton, UCAL_HOUR, pattern,status);
|
|
if ( !pattern.isEmpty() ) {
|
|
setIntervalPattern(field, pattern);
|
|
}
|
|
return false;
|
|
}
|
|
// else, looking for pattern when 'y' differ for 'dMMMM' skeleton,
|
|
// first, get best match pattern "MMMd",
|
|
// since there is no pattern for 'y' differs for skeleton 'MMMd',
|
|
// need to look for it from skeleton 'yMMMd',
|
|
// if found, adjust field width in interval pattern from
|
|
// "MMM" to "MMMM".
|
|
UChar fieldLetter = fgCalendarFieldToPatternLetter[field];
|
|
if ( extendedSkeleton ) {
|
|
*extendedSkeleton = *skeleton;
|
|
*extendedBestSkeleton = *bestSkeleton;
|
|
extendedSkeleton->insert(0, fieldLetter);
|
|
extendedBestSkeleton->insert(0, fieldLetter);
|
|
// for example, looking for patterns when 'y' differ for
|
|
// skeleton "MMMM".
|
|
fInfo->getIntervalPattern(*extendedBestSkeleton,field,pattern,status);
|
|
if ( pattern.isEmpty() && differenceInfo == 0 ) {
|
|
// if there is no skeleton "yMMMM" defined,
|
|
// look for the best match skeleton, for example: "yMMM"
|
|
const UnicodeString* tmpBest = fInfo->getBestSkeleton(
|
|
*extendedBestSkeleton, differenceInfo);
|
|
if ( tmpBest != 0 && differenceInfo != -1 ) {
|
|
fInfo->getIntervalPattern(*tmpBest, field, pattern, status);
|
|
bestSkeleton = tmpBest;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ( !pattern.isEmpty() ) {
|
|
if ( differenceInfo != 0 ) {
|
|
UnicodeString adjustIntervalPattern;
|
|
adjustFieldWidth(*skeleton, *bestSkeleton, pattern, differenceInfo,
|
|
adjustIntervalPattern);
|
|
setIntervalPattern(field, adjustIntervalPattern);
|
|
} else {
|
|
setIntervalPattern(field, pattern);
|
|
}
|
|
if ( extendedSkeleton && !extendedSkeleton->isEmpty() ) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
|
|
int32_t U_EXPORT2
|
|
DateIntervalFormat::splitPatternInto2Part(const UnicodeString& intervalPattern) {
|
|
UBool inQuote = false;
|
|
UChar prevCh = 0;
|
|
int32_t count = 0;
|
|
|
|
/* repeatedPattern used to record whether a pattern has already seen.
|
|
It is a pattern applies to first calendar if it is first time seen,
|
|
otherwise, it is a pattern applies to the second calendar
|
|
*/
|
|
UBool patternRepeated[] =
|
|
{
|
|
// A B C D E F G H I J K L M N O
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// P Q R S T U V W X Y Z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// a b c d e f g h i j k l m n o
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// p q r s t u v w x y z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
int8_t PATTERN_CHAR_BASE = 0x41;
|
|
|
|
/* loop through the pattern string character by character looking for
|
|
* the first repeated pattern letter, which breaks the interval pattern
|
|
* into 2 parts.
|
|
*/
|
|
int32_t i;
|
|
UBool foundRepetition = false;
|
|
for (i = 0; i < intervalPattern.length(); ++i) {
|
|
UChar ch = intervalPattern.charAt(i);
|
|
|
|
if (ch != prevCh && count > 0) {
|
|
// check the repeativeness of pattern letter
|
|
UBool repeated = patternRepeated[(int)(prevCh - PATTERN_CHAR_BASE)];
|
|
if ( repeated == FALSE ) {
|
|
patternRepeated[prevCh - PATTERN_CHAR_BASE] = TRUE;
|
|
} else {
|
|
foundRepetition = true;
|
|
break;
|
|
}
|
|
count = 0;
|
|
}
|
|
if (ch == 0x0027 /*'*/) {
|
|
// Consecutive single quotes are a single quote literal,
|
|
// either outside of quotes or between quotes
|
|
if ((i+1) < intervalPattern.length() &&
|
|
intervalPattern.charAt(i+1) == 0x0027 /*'*/) {
|
|
++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
|
|
prevCh = ch;
|
|
++count;
|
|
}
|
|
}
|
|
// check last pattern char, distinguish
|
|
// "dd MM" ( no repetition ),
|
|
// "d-d"(last char repeated ), and
|
|
// "d-d MM" ( repetition found )
|
|
if ( count > 0 && foundRepetition == FALSE ) {
|
|
if ( patternRepeated[(int)(prevCh - PATTERN_CHAR_BASE)] == FALSE ) {
|
|
count = 0;
|
|
}
|
|
}
|
|
return (i - count);
|
|
}
|
|
|
|
static const UChar bracketedZero[] = {0x7B,0x30,0x7D};
|
|
static const UChar bracketedOne[] = {0x7B,0x31,0x7D};
|
|
|
|
void
|
|
DateIntervalFormat::adjustPosition(UnicodeString& combiningPattern, // has {0} and {1} in it
|
|
UnicodeString& pat0, FieldPosition& pos0, // pattern and pos corresponding to {0}
|
|
UnicodeString& pat1, FieldPosition& pos1, // pattern and pos corresponding to {1}
|
|
FieldPosition& posResult) {
|
|
int32_t index0 = combiningPattern.indexOf(bracketedZero, 3, 0);
|
|
int32_t index1 = combiningPattern.indexOf(bracketedOne, 3, 0);
|
|
if (index0 < 0 || index1 < 0) {
|
|
return;
|
|
}
|
|
int32_t placeholderLen = 3; // length of "{0}" or "{1}"
|
|
if (index0 < index1) {
|
|
if (pos0.getEndIndex() > 0) {
|
|
posResult.setBeginIndex(pos0.getBeginIndex() + index0);
|
|
posResult.setEndIndex(pos0.getEndIndex() + index0);
|
|
} else if (pos1.getEndIndex() > 0) {
|
|
// here index1 >= 3
|
|
index1 += pat0.length() - placeholderLen; // adjust for pat0 replacing {0}
|
|
posResult.setBeginIndex(pos1.getBeginIndex() + index1);
|
|
posResult.setEndIndex(pos1.getEndIndex() + index1);
|
|
}
|
|
} else {
|
|
if (pos1.getEndIndex() > 0) {
|
|
posResult.setBeginIndex(pos1.getBeginIndex() + index1);
|
|
posResult.setEndIndex(pos1.getEndIndex() + index1);
|
|
} else if (pos0.getEndIndex() > 0) {
|
|
// here index0 >= 3
|
|
index0 += pat1.length() - placeholderLen; // adjust for pat1 replacing {1}
|
|
posResult.setBeginIndex(pos0.getBeginIndex() + index0);
|
|
posResult.setEndIndex(pos0.getEndIndex() + index0);
|
|
}
|
|
}
|
|
}
|
|
|
|
UnicodeString&
|
|
DateIntervalFormat::fallbackFormat(Calendar& fromCalendar,
|
|
Calendar& toCalendar,
|
|
UBool fromToOnSameDay, // new
|
|
UnicodeString& appendTo,
|
|
FieldPosition& pos,
|
|
UErrorCode& status) const {
|
|
if ( U_FAILURE(status) ) {
|
|
return appendTo;
|
|
}
|
|
UnicodeString fullPattern; // for saving the pattern in fDateFormat
|
|
UBool formatDatePlusTimeRange = (fromToOnSameDay && fDatePattern && fTimePattern);
|
|
// the fall back
|
|
if (formatDatePlusTimeRange) {
|
|
fDateFormat->toPattern(fullPattern); // save current pattern, restore later
|
|
fDateFormat->applyPattern(*fTimePattern);
|
|
}
|
|
FieldPosition otherPos;
|
|
otherPos.setField(pos.getField());
|
|
UnicodeString earlierDate;
|
|
fDateFormat->format(fromCalendar, earlierDate, pos);
|
|
UnicodeString laterDate;
|
|
fDateFormat->format(toCalendar, laterDate, otherPos);
|
|
UnicodeString fallbackPattern;
|
|
fInfo->getFallbackIntervalPattern(fallbackPattern);
|
|
adjustPosition(fallbackPattern, earlierDate, pos, laterDate, otherPos, pos);
|
|
UnicodeString fallbackRange;
|
|
SimpleFormatter(fallbackPattern, 2, 2, status).
|
|
format(earlierDate, laterDate, fallbackRange, status);
|
|
if ( U_SUCCESS(status) && formatDatePlusTimeRange ) {
|
|
// fallbackRange has just the time range, need to format the date part and combine that
|
|
fDateFormat->applyPattern(*fDatePattern);
|
|
UnicodeString datePortion;
|
|
otherPos.setBeginIndex(0);
|
|
otherPos.setEndIndex(0);
|
|
fDateFormat->format(fromCalendar, datePortion, otherPos);
|
|
adjustPosition(*fDateTimeFormat, fallbackRange, pos, datePortion, otherPos, pos);
|
|
const UnicodeString *values[2] = {
|
|
&fallbackRange, // {0} is time range
|
|
&datePortion, // {1} is single date portion
|
|
};
|
|
SimpleFormatter(*fDateTimeFormat, 2, 2, status).
|
|
formatAndReplace(values, 2, fallbackRange, NULL, 0, status);
|
|
}
|
|
if ( U_SUCCESS(status) ) {
|
|
appendTo.append(fallbackRange);
|
|
}
|
|
if (formatDatePlusTimeRange) {
|
|
// restore full pattern
|
|
fDateFormat->applyPattern(fullPattern);
|
|
}
|
|
return appendTo;
|
|
}
|
|
|
|
|
|
|
|
|
|
UBool U_EXPORT2
|
|
DateIntervalFormat::fieldExistsInSkeleton(UCalendarDateFields field,
|
|
const UnicodeString& skeleton)
|
|
{
|
|
const UChar fieldChar = fgCalendarFieldToPatternLetter[field];
|
|
return ( (skeleton.indexOf(fieldChar) == -1)?FALSE:TRUE ) ;
|
|
}
|
|
|
|
|
|
|
|
void U_EXPORT2
|
|
DateIntervalFormat::adjustFieldWidth(const UnicodeString& inputSkeleton,
|
|
const UnicodeString& bestMatchSkeleton,
|
|
const UnicodeString& bestIntervalPattern,
|
|
int8_t differenceInfo,
|
|
UnicodeString& adjustedPtn) {
|
|
adjustedPtn = bestIntervalPattern;
|
|
int32_t inputSkeletonFieldWidth[] =
|
|
{
|
|
// A B C D E F G H I J K L M N O
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// P Q R S T U V W X Y Z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// a b c d e f g h i j k l m n o
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// p q r s t u v w x y z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
int32_t bestMatchSkeletonFieldWidth[] =
|
|
{
|
|
// A B C D E F G H I J K L M N O
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// P Q R S T U V W X Y Z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// a b c d e f g h i j k l m n o
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
// p q r s t u v w x y z
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
|
};
|
|
|
|
DateIntervalInfo::parseSkeleton(inputSkeleton, inputSkeletonFieldWidth);
|
|
DateIntervalInfo::parseSkeleton(bestMatchSkeleton, bestMatchSkeletonFieldWidth);
|
|
if ( differenceInfo == 2 ) {
|
|
adjustedPtn.findAndReplace(UnicodeString((UChar)0x76 /* v */),
|
|
UnicodeString((UChar)0x7a /* z */));
|
|
}
|
|
|
|
UBool inQuote = false;
|
|
UChar prevCh = 0;
|
|
int32_t count = 0;
|
|
|
|
const int8_t PATTERN_CHAR_BASE = 0x41;
|
|
|
|
// loop through the pattern string character by character
|
|
int32_t adjustedPtnLength = adjustedPtn.length();
|
|
int32_t i;
|
|
for (i = 0; i < adjustedPtnLength; ++i) {
|
|
UChar ch = adjustedPtn.charAt(i);
|
|
if (ch != prevCh && count > 0) {
|
|
// check the repeativeness of pattern letter
|
|
UChar skeletonChar = prevCh;
|
|
if ( skeletonChar == CAP_L ) {
|
|
// there is no "L" (always be "M") in skeleton,
|
|
// but there is "L" in pattern.
|
|
// for skeleton "M+", the pattern might be "...L..."
|
|
skeletonChar = CAP_M;
|
|
}
|
|
int32_t fieldCount = bestMatchSkeletonFieldWidth[(int)(skeletonChar - PATTERN_CHAR_BASE)];
|
|
int32_t inputFieldCount = inputSkeletonFieldWidth[(int)(skeletonChar - PATTERN_CHAR_BASE)];
|
|
if ( fieldCount == count && inputFieldCount > fieldCount ) {
|
|
count = inputFieldCount - fieldCount;
|
|
int32_t j;
|
|
for ( j = 0; j < count; ++j ) {
|
|
adjustedPtn.insert(i, prevCh);
|
|
}
|
|
i += count;
|
|
adjustedPtnLength += count;
|
|
}
|
|
count = 0;
|
|
}
|
|
if (ch == 0x0027 /*'*/) {
|
|
// Consecutive single quotes are a single quote literal,
|
|
// either outside of quotes or between quotes
|
|
if ((i+1) < adjustedPtn.length() && adjustedPtn.charAt(i+1) == 0x0027 /* ' */) {
|
|
++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
|
|
prevCh = ch;
|
|
++count;
|
|
}
|
|
}
|
|
if ( count > 0 ) {
|
|
// last item
|
|
// check the repeativeness of pattern letter
|
|
UChar skeletonChar = prevCh;
|
|
if ( skeletonChar == CAP_L ) {
|
|
// there is no "L" (always be "M") in skeleton,
|
|
// but there is "L" in pattern.
|
|
// for skeleton "M+", the pattern might be "...L..."
|
|
skeletonChar = CAP_M;
|
|
}
|
|
int32_t fieldCount = bestMatchSkeletonFieldWidth[(int)(skeletonChar - PATTERN_CHAR_BASE)];
|
|
int32_t inputFieldCount = inputSkeletonFieldWidth[(int)(skeletonChar - PATTERN_CHAR_BASE)];
|
|
if ( fieldCount == count && inputFieldCount > fieldCount ) {
|
|
count = inputFieldCount - fieldCount;
|
|
int32_t j;
|
|
for ( j = 0; j < count; ++j ) {
|
|
adjustedPtn.append(prevCh);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void
|
|
DateIntervalFormat::concatSingleDate2TimeInterval(UnicodeString& format,
|
|
const UnicodeString& datePattern,
|
|
UCalendarDateFields field,
|
|
UErrorCode& status) {
|
|
// following should not set wrong status
|
|
int32_t itvPtnIndex = DateIntervalInfo::calendarFieldToIntervalIndex(field,
|
|
status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
PatternInfo& timeItvPtnInfo = fIntervalPatterns[itvPtnIndex];
|
|
if ( !timeItvPtnInfo.firstPart.isEmpty() ) {
|
|
UnicodeString timeIntervalPattern(timeItvPtnInfo.firstPart);
|
|
timeIntervalPattern.append(timeItvPtnInfo.secondPart);
|
|
UnicodeString combinedPattern;
|
|
SimpleFormatter(format, 2, 2, status).
|
|
format(timeIntervalPattern, datePattern, combinedPattern, status);
|
|
if ( U_FAILURE(status) ) {
|
|
return;
|
|
}
|
|
setIntervalPattern(field, combinedPattern, timeItvPtnInfo.laterDateFirst);
|
|
}
|
|
// else: fall back
|
|
// it should not happen if the interval format defined is valid
|
|
}
|
|
|
|
|
|
|
|
const UChar
|
|
DateIntervalFormat::fgCalendarFieldToPatternLetter[] =
|
|
{
|
|
/*GyM*/ CAP_G, LOW_Y, CAP_M,
|
|
/*wWd*/ LOW_W, CAP_W, LOW_D,
|
|
/*DEF*/ CAP_D, CAP_E, CAP_F,
|
|
/*ahH*/ LOW_A, LOW_H, CAP_H,
|
|
/*msS*/ LOW_M, LOW_S, CAP_S, // MINUTE, SECOND, MILLISECOND
|
|
/*z.Y*/ LOW_Z, SPACE, CAP_Y, // ZONE_OFFSET, DST_OFFSET, YEAR_WOY,
|
|
/*eug*/ LOW_E, LOW_U, LOW_G, // DOW_LOCAL, EXTENDED_YEAR, JULIAN_DAY,
|
|
/*A..*/ CAP_A, SPACE, SPACE, // MILLISECONDS_IN_DAY, IS_LEAP_MONTH, FIELD_COUNT
|
|
};
|
|
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif
|