7364736f03
X-SVN-Rev: 24869
2586 lines
94 KiB
C++
2586 lines
94 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1997-2008, 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 SMPDTFMT.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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* 07/09/97 helena Made ParsePosition into a class.
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* 07/21/98 stephen Added initializeDefaultCentury.
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* Removed getZoneIndex (added in DateFormatSymbols)
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* Removed subParseLong
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* Removed chk
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* 02/22/99 stephen Removed character literals for EBCDIC safety
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* 10/14/99 aliu Updated 2-digit year parsing so that only "00" thru
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* "99" are recognized. {j28 4182066}
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* 11/15/99 weiv Added support for week of year/day of week format
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********************************************************************************
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*/
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#define ZID_KEY_MAX 128
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/smpdtfmt.h"
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#include "unicode/dtfmtsym.h"
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#include "unicode/ures.h"
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#include "unicode/msgfmt.h"
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#include "unicode/calendar.h"
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#include "unicode/gregocal.h"
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#include "unicode/timezone.h"
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#include "unicode/decimfmt.h"
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#include "unicode/dcfmtsym.h"
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#include "unicode/uchar.h"
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#include "unicode/ustring.h"
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#include "unicode/basictz.h"
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#include "unicode/simpletz.h"
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#include "unicode/rbtz.h"
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#include "unicode/vtzone.h"
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#include "olsontz.h"
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#include "util.h"
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#include "gregoimp.h"
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#include "cstring.h"
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#include "uassert.h"
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#include "zstrfmt.h"
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#include "cmemory.h"
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#include "umutex.h"
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#include <float.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 SimpleDateFormat
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// *****************************************************************************
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U_NAMESPACE_BEGIN
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static const UChar PATTERN_CHAR_BASE = 0x40;
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/**
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* Last-resort string to use for "GMT" when constructing time zone strings.
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*/
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// For time zones that have no names, use strings GMT+minutes and
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// GMT-minutes. For instance, in France the time zone is GMT+60.
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// Also accepted are GMT+H:MM or GMT-H:MM.
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static const UChar gGmt[] = {0x0047, 0x004D, 0x0054, 0x0000}; // "GMT"
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static const UChar gGmtPlus[] = {0x0047, 0x004D, 0x0054, 0x002B, 0x0000}; // "GMT+"
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static const UChar gGmtMinus[] = {0x0047, 0x004D, 0x0054, 0x002D, 0x0000}; // "GMT-"
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static const UChar gDefGmtPat[] = {0x0047, 0x004D, 0x0054, 0x007B, 0x0030, 0x007D, 0x0000}; /* GMT{0} */
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static const UChar gDefGmtNegHmsPat[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0x0000}; /* -HH:mm:ss */
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static const UChar gDefGmtNegHmPat[] = {0x002D, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x0000}; /* -HH:mm */
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static const UChar gDefGmtPosHmsPat[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x003A, 0x0073, 0x0073, 0x0000}; /* +HH:mm:ss */
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static const UChar gDefGmtPosHmPat[] = {0x002B, 0x0048, 0x0048, 0x003A, 0x006D, 0x006D, 0x0000}; /* +HH:mm */
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typedef enum GmtPatSize {
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kGmtLen = 3,
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kGmtPatLen = 6,
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kNegHmsLen = 9,
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kNegHmLen = 6,
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kPosHmsLen = 9,
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kPosHmLen = 6
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} GmtPatSize;
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// This is a pattern-of-last-resort used when we can't load a usable pattern out
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// of a resource.
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static const UChar gDefaultPattern[] =
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{
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0x79, 0x79, 0x79, 0x79, 0x4D, 0x4D, 0x64, 0x64, 0x20, 0x68, 0x68, 0x3A, 0x6D, 0x6D, 0x20, 0x61, 0
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}; /* "yyyyMMdd hh:mm a" */
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// This prefix is designed to NEVER MATCH real text, in order to
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// suppress the parsing of negative numbers. Adjust as needed (if
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// this becomes valid Unicode).
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static const UChar SUPPRESS_NEGATIVE_PREFIX[] = {0xAB00, 0};
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/**
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* These are the tags we expect to see in normal resource bundle files associated
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* with a locale.
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*/
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static const char gDateTimePatternsTag[]="DateTimePatterns";
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static const UChar gEtcUTC[] = {0x45, 0x74, 0x63, 0x2F, 0x55, 0x54, 0x43, 0x00}; // "Etc/UTC"
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static const UChar QUOTE = 0x27; // Single quote
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enum {
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kGMTNegativeHMS = 0,
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kGMTNegativeHM,
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kGMTPositiveHMS,
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kGMTPositiveHM,
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kNumGMTFormatters
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};
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static UMTX LOCK;
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SimpleDateFormat)
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//----------------------------------------------------------------------
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SimpleDateFormat::~SimpleDateFormat()
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{
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delete fSymbols;
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if (fGMTFormatters) {
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for (int32_t i = 0; i < kNumGMTFormatters; i++) {
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if (fGMTFormatters[i]) {
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delete fGMTFormatters[i];
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}
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}
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uprv_free(fGMTFormatters);
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}
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(UErrorCode& status)
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: fLocale(Locale::getDefault()),
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fSymbols(NULL),
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fGMTFormatters(NULL)
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{
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construct(kShort, (EStyle) (kShort + kDateOffset), fLocale, status);
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initializeDefaultCentury();
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern,
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UErrorCode &status)
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: fPattern(pattern),
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fLocale(Locale::getDefault()),
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fSymbols(NULL),
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fGMTFormatters(NULL)
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{
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initializeSymbols(fLocale, initializeCalendar(NULL,fLocale,status), status);
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initialize(fLocale, status);
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initializeDefaultCentury();
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern,
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const Locale& locale,
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UErrorCode& status)
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: fPattern(pattern),
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fLocale(locale),
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fGMTFormatters(NULL)
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{
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initializeSymbols(fLocale, initializeCalendar(NULL,fLocale,status), status);
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initialize(fLocale, status);
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initializeDefaultCentury();
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern,
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DateFormatSymbols* symbolsToAdopt,
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UErrorCode& status)
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: fPattern(pattern),
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fLocale(Locale::getDefault()),
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fSymbols(symbolsToAdopt),
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fGMTFormatters(NULL)
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{
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initializeCalendar(NULL,fLocale,status);
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initialize(fLocale, status);
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initializeDefaultCentury();
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(const UnicodeString& pattern,
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const DateFormatSymbols& symbols,
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UErrorCode& status)
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: fPattern(pattern),
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fLocale(Locale::getDefault()),
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fSymbols(new DateFormatSymbols(symbols)),
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fGMTFormatters(NULL)
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{
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initializeCalendar(NULL, fLocale, status);
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initialize(fLocale, status);
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initializeDefaultCentury();
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}
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//----------------------------------------------------------------------
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// Not for public consumption; used by DateFormat
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SimpleDateFormat::SimpleDateFormat(EStyle timeStyle,
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EStyle dateStyle,
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const Locale& locale,
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UErrorCode& status)
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: fLocale(locale),
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fSymbols(NULL),
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fGMTFormatters(NULL)
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{
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construct(timeStyle, dateStyle, fLocale, status);
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if(U_SUCCESS(status)) {
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initializeDefaultCentury();
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}
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}
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//----------------------------------------------------------------------
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/**
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* Not for public consumption; used by DateFormat. This constructor
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* never fails. If the resource data is not available, it uses the
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* the last resort symbols.
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*/
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SimpleDateFormat::SimpleDateFormat(const Locale& locale,
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UErrorCode& status)
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: fPattern(gDefaultPattern),
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fLocale(locale),
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fSymbols(NULL),
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fGMTFormatters(NULL)
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{
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if (U_FAILURE(status)) return;
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initializeSymbols(fLocale, initializeCalendar(NULL, fLocale, status),status);
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if (U_FAILURE(status))
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{
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status = U_ZERO_ERROR;
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delete fSymbols;
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// This constructor doesn't fail; it uses last resort data
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fSymbols = new DateFormatSymbols(status);
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/* test for NULL */
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if (fSymbols == 0) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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}
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initialize(fLocale, status);
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if(U_SUCCESS(status)) {
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initializeDefaultCentury();
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}
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(const SimpleDateFormat& other)
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: DateFormat(other),
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fSymbols(NULL),
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fGMTFormatters(NULL)
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{
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*this = other;
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}
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//----------------------------------------------------------------------
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SimpleDateFormat& SimpleDateFormat::operator=(const SimpleDateFormat& other)
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{
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if (this == &other) {
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return *this;
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}
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DateFormat::operator=(other);
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delete fSymbols;
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fSymbols = NULL;
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if (other.fSymbols)
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fSymbols = new DateFormatSymbols(*other.fSymbols);
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fDefaultCenturyStart = other.fDefaultCenturyStart;
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fDefaultCenturyStartYear = other.fDefaultCenturyStartYear;
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fHaveDefaultCentury = other.fHaveDefaultCentury;
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fPattern = other.fPattern;
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return *this;
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}
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//----------------------------------------------------------------------
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Format*
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SimpleDateFormat::clone() const
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{
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return new SimpleDateFormat(*this);
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}
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//----------------------------------------------------------------------
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UBool
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SimpleDateFormat::operator==(const Format& other) const
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{
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if (DateFormat::operator==(other)) {
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// DateFormat::operator== guarantees following cast is safe
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SimpleDateFormat* that = (SimpleDateFormat*)&other;
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return (fPattern == that->fPattern &&
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fSymbols != NULL && // Check for pathological object
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that->fSymbols != NULL && // Check for pathological object
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*fSymbols == *that->fSymbols &&
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fHaveDefaultCentury == that->fHaveDefaultCentury &&
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fDefaultCenturyStart == that->fDefaultCenturyStart);
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}
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return FALSE;
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}
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//----------------------------------------------------------------------
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void SimpleDateFormat::construct(EStyle timeStyle,
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EStyle dateStyle,
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const Locale& locale,
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UErrorCode& status)
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{
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// called by several constructors to load pattern data from the resources
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if (U_FAILURE(status)) return;
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// We will need the calendar to know what type of symbols to load.
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initializeCalendar(NULL, locale, status);
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if (U_FAILURE(status)) return;
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CalendarData calData(locale, fCalendar?fCalendar->getType():NULL, status);
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UResourceBundle *dateTimePatterns = calData.getByKey(gDateTimePatternsTag, status);
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if (U_FAILURE(status)) return;
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if (ures_getSize(dateTimePatterns) <= kDateTime)
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{
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status = U_INVALID_FORMAT_ERROR;
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return;
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}
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setLocaleIDs(ures_getLocaleByType(dateTimePatterns, ULOC_VALID_LOCALE, &status),
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ures_getLocaleByType(dateTimePatterns, ULOC_ACTUAL_LOCALE, &status));
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// create a symbols object from the locale
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initializeSymbols(locale,fCalendar, status);
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if (U_FAILURE(status)) return;
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/* test for NULL */
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if (fSymbols == 0) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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const UChar *resStr;
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int32_t resStrLen = 0;
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// if the pattern should include both date and time information, use the date/time
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// pattern string as a guide to tell use how to glue together the appropriate date
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// and time pattern strings. The actual gluing-together is handled by a convenience
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// method on MessageFormat.
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if ((timeStyle != kNone) && (dateStyle != kNone))
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{
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Formattable timeDateArray[2];
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// use Formattable::adoptString() so that we can use fastCopyFrom()
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// instead of Formattable::setString()'s unaware, safe, deep string clone
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// see Jitterbug 2296
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resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)timeStyle, &resStrLen, &status);
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UnicodeString *tempus1 = new UnicodeString(TRUE, resStr, resStrLen);
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// NULL pointer check
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if (tempus1 == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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timeDateArray[0].adoptString(tempus1);
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resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)dateStyle, &resStrLen, &status);
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UnicodeString *tempus2 = new UnicodeString(TRUE, resStr, resStrLen);
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// Null pointer check
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if (tempus2 == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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timeDateArray[1].adoptString(tempus2);
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resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)kDateTime, &resStrLen, &status);
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MessageFormat::format(UnicodeString(TRUE, resStr, resStrLen), timeDateArray, 2, fPattern, status);
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}
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// if the pattern includes just time data or just date date, load the appropriate
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// pattern string from the resources
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// setTo() - see DateFormatSymbols::assignArray comments
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else if (timeStyle != kNone) {
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resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)timeStyle, &resStrLen, &status);
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fPattern.setTo(TRUE, resStr, resStrLen);
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}
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else if (dateStyle != kNone) {
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resStr = ures_getStringByIndex(dateTimePatterns, (int32_t)dateStyle, &resStrLen, &status);
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fPattern.setTo(TRUE, resStr, resStrLen);
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}
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// and if it includes _neither_, that's an error
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else
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status = U_INVALID_FORMAT_ERROR;
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// finally, finish initializing by creating a Calendar and a NumberFormat
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initialize(locale, status);
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}
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//----------------------------------------------------------------------
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Calendar*
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SimpleDateFormat::initializeCalendar(TimeZone* adoptZone, const Locale& locale, UErrorCode& status)
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{
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if(!U_FAILURE(status)) {
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fCalendar = Calendar::createInstance(adoptZone?adoptZone:TimeZone::createDefault(), locale, status);
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}
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if (U_SUCCESS(status) && fCalendar == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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}
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return fCalendar;
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}
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void
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SimpleDateFormat::initializeSymbols(const Locale& locale, Calendar* calendar, UErrorCode& status)
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{
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if(U_FAILURE(status)) {
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fSymbols = NULL;
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} else {
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// pass in calendar type - use NULL (default) if no calendar set (or err).
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fSymbols = new DateFormatSymbols(locale, calendar?calendar->getType() :NULL , status);
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// Null pointer check
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if (fSymbols == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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}
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}
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void
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SimpleDateFormat::initialize(const Locale& locale,
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UErrorCode& status)
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{
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if (U_FAILURE(status)) return;
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// We don't need to check that the row count is >= 1, since all 2d arrays have at
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// least one row
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fNumberFormat = NumberFormat::createInstance(locale, status);
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if (fNumberFormat != NULL && U_SUCCESS(status))
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{
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// no matter what the locale's default number format looked like, we want
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// to modify it so that it doesn't use thousands separators, doesn't always
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// show the decimal point, and recognizes integers only when parsing
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fNumberFormat->setGroupingUsed(FALSE);
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if (fNumberFormat->getDynamicClassID() == DecimalFormat::getStaticClassID())
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((DecimalFormat*)fNumberFormat)->setDecimalSeparatorAlwaysShown(FALSE);
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fNumberFormat->setParseIntegerOnly(TRUE);
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fNumberFormat->setMinimumFractionDigits(0); // To prevent "Jan 1.00, 1997.00"
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}
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else if (U_SUCCESS(status))
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{
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status = U_MISSING_RESOURCE_ERROR;
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}
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}
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/* Initialize the fields we use to disambiguate ambiguous years. Separate
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* so we can call it from readObject().
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*/
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void SimpleDateFormat::initializeDefaultCentury()
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{
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if(fCalendar) {
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fHaveDefaultCentury = fCalendar->haveDefaultCentury();
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if(fHaveDefaultCentury) {
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fDefaultCenturyStart = fCalendar->defaultCenturyStart();
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fDefaultCenturyStartYear = fCalendar->defaultCenturyStartYear();
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} else {
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fDefaultCenturyStart = DBL_MIN;
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fDefaultCenturyStartYear = -1;
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}
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}
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}
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/* Define one-century window into which to disambiguate dates using
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* two-digit years. Make public in JDK 1.2.
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*/
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void SimpleDateFormat::parseAmbiguousDatesAsAfter(UDate startDate, UErrorCode& status)
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{
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if(U_FAILURE(status)) {
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return;
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}
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if(!fCalendar) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return;
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}
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fCalendar->setTime(startDate, status);
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if(U_SUCCESS(status)) {
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fHaveDefaultCentury = TRUE;
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fDefaultCenturyStart = startDate;
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fDefaultCenturyStartYear = fCalendar->get(UCAL_YEAR, status);
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}
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}
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//----------------------------------------------------------------------
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UnicodeString&
|
|
SimpleDateFormat::format(Calendar& cal, UnicodeString& appendTo, FieldPosition& pos) const
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
pos.setBeginIndex(0);
|
|
pos.setEndIndex(0);
|
|
|
|
UBool inQuote = FALSE;
|
|
UChar prevCh = 0;
|
|
int32_t count = 0;
|
|
|
|
// loop through the pattern string character by character
|
|
for (int32_t i = 0; i < fPattern.length() && U_SUCCESS(status); ++i) {
|
|
UChar ch = fPattern[i];
|
|
|
|
// Use subFormat() to format a repeated pattern character
|
|
// when a different pattern or non-pattern character is seen
|
|
if (ch != prevCh && count > 0) {
|
|
subFormat(appendTo, prevCh, count, pos, cal, status);
|
|
count = 0;
|
|
}
|
|
if (ch == QUOTE) {
|
|
// Consecutive single quotes are a single quote literal,
|
|
// either outside of quotes or between quotes
|
|
if ((i+1) < fPattern.length() && fPattern[i+1] == QUOTE) {
|
|
appendTo += (UChar)QUOTE;
|
|
++i;
|
|
} else {
|
|
inQuote = ! inQuote;
|
|
}
|
|
}
|
|
else if ( ! inQuote && ((ch >= 0x0061 /*'a'*/ && ch <= 0x007A /*'z'*/)
|
|
|| (ch >= 0x0041 /*'A'*/ && ch <= 0x005A /*'Z'*/))) {
|
|
// ch is a date-time pattern character to be interpreted
|
|
// by subFormat(); count the number of times it is repeated
|
|
prevCh = ch;
|
|
++count;
|
|
}
|
|
else {
|
|
// Append quoted characters and unquoted non-pattern characters
|
|
appendTo += ch;
|
|
}
|
|
}
|
|
|
|
// Format the last item in the pattern, if any
|
|
if (count > 0) {
|
|
subFormat(appendTo, prevCh, count, pos, cal, status);
|
|
}
|
|
|
|
// and if something failed (e.g., an invalid format character), reset our FieldPosition
|
|
// to (0, 0) to show that
|
|
// {sfb} look at this later- are these being set correctly?
|
|
if (U_FAILURE(status)) {
|
|
pos.setBeginIndex(0);
|
|
pos.setEndIndex(0);
|
|
}
|
|
|
|
return appendTo;
|
|
}
|
|
|
|
UnicodeString&
|
|
SimpleDateFormat::format(const Formattable& obj,
|
|
UnicodeString& appendTo,
|
|
FieldPosition& pos,
|
|
UErrorCode& status) const
|
|
{
|
|
// this is just here to get around the hiding problem
|
|
// (the previous format() override would hide the version of
|
|
// format() on DateFormat that this function correspond to, so we
|
|
// have to redefine it here)
|
|
return DateFormat::format(obj, appendTo, pos, status);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
/* Map calendar field into calendar field level.
|
|
* the larger the level, the smaller the field unit.
|
|
* For example, UCAL_ERA level is 0, UCAL_YEAR level is 10,
|
|
* UCAL_MONTH level is 20.
|
|
* NOTE: if new fields adds in, the table needs to update.
|
|
*/
|
|
const int32_t
|
|
SimpleDateFormat::fgCalendarFieldToLevel[] =
|
|
{
|
|
/*GyM*/ 0, 10, 20,
|
|
/*wW*/ 20, 30,
|
|
/*dDEF*/ 30, 20, 30, 30,
|
|
/*ahHm*/ 40, 50, 50, 60,
|
|
/*sS..*/ 70, 80,
|
|
/*z?Y*/ 0, 0, 10,
|
|
/*eug*/ 30, 10, 0,
|
|
/*A*/ 40
|
|
};
|
|
|
|
|
|
/* Map calendar field LETTER into calendar field level.
|
|
* the larger the level, the smaller the field unit.
|
|
* NOTE: if new fields adds in, the table needs to update.
|
|
*/
|
|
const int32_t
|
|
SimpleDateFormat::fgPatternCharToLevel[] = {
|
|
// A B C D E F G H I J K L M N O
|
|
-1, 40, -1, -1, 20, 30, 30, 0, 50, -1, -1, 50, 20, 20, -1, -1,
|
|
// P Q R S T U V W X Y Z
|
|
-1, 20, -1, 80, -1, -1, 0, 30, -1, 10, 0, -1, -1, -1, -1, -1,
|
|
// a b c d e f g h i j k l m n o
|
|
-1, 40, -1, 30, 30, 30, -1, 0, 50, -1, -1, 50, -1, 60, -1, -1,
|
|
// p q r s t u v w x y z
|
|
-1, 20, -1, 70, -1, 10, 0, 20, -1, 10, 0, -1, -1, -1, -1, -1
|
|
};
|
|
|
|
|
|
// Map index into pattern character string to Calendar field number.
|
|
const UCalendarDateFields
|
|
SimpleDateFormat::fgPatternIndexToCalendarField[] =
|
|
{
|
|
/*GyM*/ UCAL_ERA, UCAL_YEAR, UCAL_MONTH,
|
|
/*dkH*/ UCAL_DATE, UCAL_HOUR_OF_DAY, UCAL_HOUR_OF_DAY,
|
|
/*msS*/ UCAL_MINUTE, UCAL_SECOND, UCAL_MILLISECOND,
|
|
/*EDF*/ UCAL_DAY_OF_WEEK, UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK_IN_MONTH,
|
|
/*wWa*/ UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH, UCAL_AM_PM,
|
|
/*hKz*/ UCAL_HOUR, UCAL_HOUR, UCAL_ZONE_OFFSET,
|
|
/*Yeu*/ UCAL_YEAR_WOY, UCAL_DOW_LOCAL, UCAL_EXTENDED_YEAR,
|
|
/*gAZ*/ UCAL_JULIAN_DAY, UCAL_MILLISECONDS_IN_DAY, UCAL_ZONE_OFFSET,
|
|
/*v*/ UCAL_ZONE_OFFSET,
|
|
/*c*/ UCAL_DOW_LOCAL,
|
|
/*L*/ UCAL_MONTH,
|
|
/*Q*/ UCAL_MONTH,
|
|
/*q*/ UCAL_MONTH,
|
|
/*V*/ UCAL_ZONE_OFFSET,
|
|
};
|
|
|
|
// Map index into pattern character string to DateFormat field number
|
|
const UDateFormatField
|
|
SimpleDateFormat::fgPatternIndexToDateFormatField[] = {
|
|
/*GyM*/ UDAT_ERA_FIELD, UDAT_YEAR_FIELD, UDAT_MONTH_FIELD,
|
|
/*dkH*/ UDAT_DATE_FIELD, UDAT_HOUR_OF_DAY1_FIELD, UDAT_HOUR_OF_DAY0_FIELD,
|
|
/*msS*/ UDAT_MINUTE_FIELD, UDAT_SECOND_FIELD, UDAT_FRACTIONAL_SECOND_FIELD,
|
|
/*EDF*/ UDAT_DAY_OF_WEEK_FIELD, UDAT_DAY_OF_YEAR_FIELD, UDAT_DAY_OF_WEEK_IN_MONTH_FIELD,
|
|
/*wWa*/ UDAT_WEEK_OF_YEAR_FIELD, UDAT_WEEK_OF_MONTH_FIELD, UDAT_AM_PM_FIELD,
|
|
/*hKz*/ UDAT_HOUR1_FIELD, UDAT_HOUR0_FIELD, UDAT_TIMEZONE_FIELD,
|
|
/*Yeu*/ UDAT_YEAR_WOY_FIELD, UDAT_DOW_LOCAL_FIELD, UDAT_EXTENDED_YEAR_FIELD,
|
|
/*gAZ*/ UDAT_JULIAN_DAY_FIELD, UDAT_MILLISECONDS_IN_DAY_FIELD, UDAT_TIMEZONE_RFC_FIELD,
|
|
/*v*/ UDAT_TIMEZONE_GENERIC_FIELD,
|
|
/*c*/ UDAT_STANDALONE_DAY_FIELD,
|
|
/*L*/ UDAT_STANDALONE_MONTH_FIELD,
|
|
/*Q*/ UDAT_QUARTER_FIELD,
|
|
/*q*/ UDAT_STANDALONE_QUARTER_FIELD,
|
|
/*V*/ UDAT_TIMEZONE_SPECIAL_FIELD,
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
/**
|
|
* Append symbols[value] to dst. Make sure the array index is not out
|
|
* of bounds.
|
|
*/
|
|
static inline void
|
|
_appendSymbol(UnicodeString& dst,
|
|
int32_t value,
|
|
const UnicodeString* symbols,
|
|
int32_t symbolsCount) {
|
|
U_ASSERT(0 <= value && value < symbolsCount);
|
|
if (0 <= value && value < symbolsCount) {
|
|
dst += symbols[value];
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
void
|
|
SimpleDateFormat::appendGMT(UnicodeString &appendTo, Calendar& cal, UErrorCode& status) const{
|
|
int32_t offset = cal.get(UCAL_ZONE_OFFSET, status) + cal.get(UCAL_DST_OFFSET, status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
if (isDefaultGMTFormat()) {
|
|
formatGMTDefault(appendTo, offset);
|
|
} else {
|
|
((SimpleDateFormat*)this)->initGMTFormatters(status);
|
|
if (U_SUCCESS(status)) {
|
|
int32_t type;
|
|
if (offset < 0) {
|
|
offset = -offset;
|
|
type = (offset % U_MILLIS_PER_MINUTE) == 0 ? kGMTNegativeHM : kGMTNegativeHMS;
|
|
} else {
|
|
type = (offset % U_MILLIS_PER_MINUTE) == 0 ? kGMTPositiveHM : kGMTPositiveHMS;
|
|
}
|
|
Formattable param(offset, Formattable::kIsDate);
|
|
FieldPosition fpos(0);
|
|
fGMTFormatters[type]->format(¶m, 1, appendTo, fpos, status);
|
|
}
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
SimpleDateFormat::parseGMT(const UnicodeString &text, ParsePosition &pos) const {
|
|
if (!isDefaultGMTFormat()) {
|
|
int32_t start = pos.getIndex();
|
|
|
|
// Quick check
|
|
UBool prefixMatch = FALSE;
|
|
int32_t prefixLen = fSymbols->fGmtFormat.indexOf((UChar)0x007B /* '{' */);
|
|
if (prefixLen > 0 && text.compare(start, prefixLen, fSymbols->fGmtFormat, 0, prefixLen) == 0) {
|
|
prefixMatch = TRUE;
|
|
}
|
|
if (prefixMatch) {
|
|
// Prefix matched
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
((SimpleDateFormat*)this)->initGMTFormatters(status);
|
|
if (U_SUCCESS(status)) {
|
|
Formattable parsed;
|
|
int32_t parsedCount;
|
|
|
|
// Try negative Hms
|
|
fGMTFormatters[kGMTNegativeHMS]->parseObject(text, parsed, pos);
|
|
if (pos.getErrorIndex() == -1 && pos.getIndex() > start) {
|
|
parsed.getArray(parsedCount);
|
|
if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) {
|
|
return (int32_t)(-1 * (int64_t)parsed[0].getDate());
|
|
}
|
|
}
|
|
|
|
// Reset ParsePosition
|
|
pos.setIndex(start);
|
|
pos.setErrorIndex(-1);
|
|
|
|
// Try positive Hms
|
|
fGMTFormatters[kGMTPositiveHMS]->parseObject(text, parsed, pos);
|
|
if (pos.getErrorIndex() == -1 && pos.getIndex() > start) {
|
|
parsed.getArray(parsedCount);
|
|
if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) {
|
|
return (int32_t)((int64_t)parsed[0].getDate());
|
|
}
|
|
}
|
|
|
|
// Reset ParsePosition
|
|
pos.setIndex(start);
|
|
pos.setErrorIndex(-1);
|
|
|
|
// Try negative Hm
|
|
fGMTFormatters[kGMTNegativeHM]->parseObject(text, parsed, pos);
|
|
if (pos.getErrorIndex() == -1 && pos.getIndex() > start) {
|
|
parsed.getArray(parsedCount);
|
|
if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) {
|
|
return (int32_t)(-1 * (int64_t)parsed[0].getDate());
|
|
}
|
|
}
|
|
|
|
// Reset ParsePosition
|
|
pos.setIndex(start);
|
|
pos.setErrorIndex(-1);
|
|
|
|
// Try positive Hm
|
|
fGMTFormatters[kGMTPositiveHM]->parseObject(text, parsed, pos);
|
|
if (pos.getErrorIndex() == -1 && pos.getIndex() > start) {
|
|
parsed.getArray(parsedCount);
|
|
if (parsedCount == 1 && parsed[0].getType() == Formattable::kDate) {
|
|
return (int32_t)((int64_t)parsed[0].getDate());
|
|
}
|
|
}
|
|
|
|
// Reset ParsePosition
|
|
pos.setIndex(start);
|
|
pos.setErrorIndex(-1);
|
|
}
|
|
// fall through to the default GMT parsing method
|
|
}
|
|
}
|
|
return parseGMTDefault(text, pos);
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::formatGMTDefault(UnicodeString &appendTo, int32_t offset) const {
|
|
if (offset < 0) {
|
|
appendTo += gGmtMinus;
|
|
offset = -offset; // suppress the '-' sign for text display.
|
|
}else{
|
|
appendTo += gGmtPlus;
|
|
}
|
|
|
|
offset /= U_MILLIS_PER_SECOND; // now in seconds
|
|
int32_t sec = offset % 60;
|
|
offset /= 60;
|
|
int32_t min = offset % 60;
|
|
int32_t hour = offset / 60;
|
|
|
|
|
|
zeroPaddingNumber(appendTo, hour, 2, 2);
|
|
appendTo += (UChar)0x003A /*':'*/;
|
|
zeroPaddingNumber(appendTo, min, 2, 2);
|
|
if (sec != 0) {
|
|
appendTo += (UChar)0x003A /*':'*/;
|
|
zeroPaddingNumber(appendTo, sec, 2, 2);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
SimpleDateFormat::parseGMTDefault(const UnicodeString &text, ParsePosition &pos) const {
|
|
int32_t start = pos.getIndex();
|
|
|
|
if (start + kGmtLen + 1 >= text.length()) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
|
|
int32_t cur = start;
|
|
// "GMT"
|
|
if (text.compare(start, kGmtLen, gGmt) != 0) {
|
|
pos.setErrorIndex(start);
|
|
return 0;
|
|
}
|
|
cur += kGmtLen;
|
|
// Sign
|
|
UBool negative = FALSE;
|
|
if (text.charAt(cur) == (UChar)0x002D /* minus */) {
|
|
negative = TRUE;
|
|
} else if (text.charAt(cur) != (UChar)0x002B /* plus */) {
|
|
pos.setErrorIndex(cur);
|
|
return 0;
|
|
}
|
|
cur++;
|
|
|
|
// Numbers
|
|
int32_t numLen;
|
|
pos.setIndex(cur);
|
|
|
|
Formattable number;
|
|
parseInt(text, number, 6, pos, FALSE);
|
|
numLen = pos.getIndex() - cur;
|
|
|
|
if (numLen <= 0) {
|
|
pos.setIndex(start);
|
|
pos.setErrorIndex(cur);
|
|
return 0;
|
|
}
|
|
|
|
int32_t numVal = number.getLong();
|
|
|
|
int32_t hour = 0;
|
|
int32_t min = 0;
|
|
int32_t sec = 0;
|
|
|
|
if (numLen <= 2) {
|
|
// H[H][:mm[:ss]]
|
|
hour = numVal;
|
|
cur += numLen;
|
|
if (cur + 2 < text.length() && text.charAt(cur) == (UChar)0x003A /* colon */) {
|
|
cur++;
|
|
pos.setIndex(cur);
|
|
parseInt(text, number, 2, pos, FALSE);
|
|
numLen = pos.getIndex() - cur;
|
|
if (numLen == 2) {
|
|
// got minute field
|
|
min = number.getLong();
|
|
cur += numLen;
|
|
if (cur + 2 < text.length() && text.charAt(cur) == (UChar)0x003A /* colon */) {
|
|
cur++;
|
|
pos.setIndex(cur);
|
|
parseInt(text, number, 2, pos, FALSE);
|
|
numLen = pos.getIndex() - cur;
|
|
if (numLen == 2) {
|
|
// got second field
|
|
sec = number.getLong();
|
|
} else {
|
|
// reset position
|
|
pos.setIndex(cur - 1);
|
|
pos.setErrorIndex(-1);
|
|
}
|
|
}
|
|
} else {
|
|
// reset postion
|
|
pos.setIndex(cur - 1);
|
|
pos.setErrorIndex(-1);
|
|
}
|
|
}
|
|
} else if (numLen == 3 || numLen == 4) {
|
|
// Hmm or HHmm
|
|
hour = numVal / 100;
|
|
min = numVal % 100;
|
|
} else if (numLen == 5 || numLen == 6) {
|
|
// Hmmss or HHmmss
|
|
hour = numVal / 10000;
|
|
min = (numVal % 10000) / 100;
|
|
sec = numVal % 100;
|
|
} else {
|
|
// HHmmss followed by bogus numbers
|
|
pos.setIndex(cur + 6);
|
|
|
|
int32_t shift = numLen - 6;
|
|
while (shift > 0) {
|
|
numVal /= 10;
|
|
shift--;
|
|
}
|
|
hour = numVal / 10000;
|
|
min = (numVal % 10000) / 100;
|
|
sec = numVal % 100;
|
|
}
|
|
|
|
int32_t offset = ((hour*60 + min)*60 + sec)*1000;
|
|
if (negative) {
|
|
offset = -offset;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
UBool
|
|
SimpleDateFormat::isDefaultGMTFormat() const {
|
|
// GMT pattern
|
|
if (fSymbols->fGmtFormat.length() == 0) {
|
|
// No GMT pattern is set
|
|
return TRUE;
|
|
} else if (fSymbols->fGmtFormat.compare(gDefGmtPat, kGmtPatLen) != 0) {
|
|
return FALSE;
|
|
}
|
|
// Hour patterns
|
|
if (fSymbols->fGmtHourFormats == NULL || fSymbols->fGmtHourFormatsCount != DateFormatSymbols::GMT_HOUR_COUNT) {
|
|
// No Hour pattern is set
|
|
return TRUE;
|
|
} else if ((fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HMS].compare(gDefGmtNegHmsPat, kNegHmsLen) != 0)
|
|
|| (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HM].compare(gDefGmtNegHmPat, kNegHmLen) != 0)
|
|
|| (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HMS].compare(gDefGmtPosHmsPat, kPosHmsLen) != 0)
|
|
|| (fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HM].compare(gDefGmtPosHmPat, kPosHmLen) != 0)) {
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::formatRFC822TZ(UnicodeString &appendTo, int32_t offset) const {
|
|
UChar sign = 0x002B /* '+' */;
|
|
if (offset < 0) {
|
|
offset = -offset;
|
|
sign = 0x002D /* '-' */;
|
|
}
|
|
appendTo.append(sign);
|
|
|
|
int32_t offsetH = offset / U_MILLIS_PER_HOUR;
|
|
offset = offset % U_MILLIS_PER_HOUR;
|
|
int32_t offsetM = offset / U_MILLIS_PER_MINUTE;
|
|
offset = offset % U_MILLIS_PER_MINUTE;
|
|
int32_t offsetS = offset / U_MILLIS_PER_SECOND;
|
|
|
|
int32_t num = 0, denom = 0;
|
|
if (offsetS == 0) {
|
|
offset = offsetH*100 + offsetM; // HHmm
|
|
num = offset % 10000;
|
|
denom = 1000;
|
|
} else {
|
|
offset = offsetH*10000 + offsetM*100 + offsetS; // HHmmss
|
|
num = offset % 1000000;
|
|
denom = 100000;
|
|
}
|
|
while (denom >= 1) {
|
|
UChar digit = (UChar)0x0030 + (num / denom);
|
|
appendTo.append(digit);
|
|
num = num % denom;
|
|
denom /= 10;
|
|
}
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::initGMTFormatters(UErrorCode &status) {
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
umtx_lock(&LOCK);
|
|
if (fGMTFormatters == NULL) {
|
|
fGMTFormatters = (MessageFormat**)uprv_malloc(kNumGMTFormatters * sizeof(MessageFormat*));
|
|
if (fGMTFormatters) {
|
|
for (int32_t i = 0; i < kNumGMTFormatters; i++) {
|
|
const UnicodeString *hourPattern = NULL; //initialized it to avoid warning
|
|
switch (i) {
|
|
case kGMTNegativeHMS:
|
|
hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HMS]);
|
|
break;
|
|
case kGMTNegativeHM:
|
|
hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_NEGATIVE_HM]);
|
|
break;
|
|
case kGMTPositiveHMS:
|
|
hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HMS]);
|
|
break;
|
|
case kGMTPositiveHM:
|
|
hourPattern = &(fSymbols->fGmtHourFormats[DateFormatSymbols::GMT_POSITIVE_HM]);
|
|
break;
|
|
}
|
|
fGMTFormatters[i] = new MessageFormat(fSymbols->fGmtFormat, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
SimpleDateFormat *sdf = (SimpleDateFormat*)this->clone();
|
|
sdf->adoptTimeZone(TimeZone::createTimeZone(UnicodeString(gEtcUTC)));
|
|
sdf->applyPattern(*hourPattern);
|
|
fGMTFormatters[i]->adoptFormat(0, sdf);
|
|
}
|
|
} else {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
umtx_unlock(&LOCK);
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
void
|
|
SimpleDateFormat::subFormat(UnicodeString &appendTo,
|
|
UChar ch,
|
|
int32_t count,
|
|
FieldPosition& pos,
|
|
Calendar& cal,
|
|
UErrorCode& status) const
|
|
{
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
|
|
// this function gets called by format() to produce the appropriate substitution
|
|
// text for an individual pattern symbol (e.g., "HH" or "yyyy")
|
|
|
|
UChar *patternCharPtr = u_strchr(DateFormatSymbols::getPatternUChars(), ch);
|
|
UDateFormatField patternCharIndex;
|
|
const int32_t maxIntCount = 10;
|
|
int32_t beginOffset = appendTo.length();
|
|
|
|
// if the pattern character is unrecognized, signal an error and dump out
|
|
if (patternCharPtr == NULL)
|
|
{
|
|
status = U_INVALID_FORMAT_ERROR;
|
|
return;
|
|
}
|
|
|
|
patternCharIndex = (UDateFormatField)(patternCharPtr - DateFormatSymbols::getPatternUChars());
|
|
UCalendarDateFields field = fgPatternIndexToCalendarField[patternCharIndex];
|
|
int32_t value = cal.get(field, status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
|
|
switch (patternCharIndex) {
|
|
|
|
// for any "G" symbol, write out the appropriate era string
|
|
// "GGGG" is wide era name, "GGGGG" is narrow era name, anything else is abbreviated name
|
|
case UDAT_ERA_FIELD:
|
|
if (count == 5)
|
|
_appendSymbol(appendTo, value, fSymbols->fNarrowEras, fSymbols->fNarrowErasCount);
|
|
else if (count == 4)
|
|
_appendSymbol(appendTo, value, fSymbols->fEraNames, fSymbols->fEraNamesCount);
|
|
else
|
|
_appendSymbol(appendTo, value, fSymbols->fEras, fSymbols->fErasCount);
|
|
break;
|
|
|
|
// OLD: for "yyyy", write out the whole year; for "yy", write out the last 2 digits
|
|
// NEW: UTS#35:
|
|
//Year y yy yyy yyyy yyyyy
|
|
//AD 1 1 01 001 0001 00001
|
|
//AD 12 12 12 012 0012 00012
|
|
//AD 123 123 23 123 0123 00123
|
|
//AD 1234 1234 34 1234 1234 01234
|
|
//AD 12345 12345 45 12345 12345 12345
|
|
case UDAT_YEAR_FIELD:
|
|
case UDAT_YEAR_WOY_FIELD:
|
|
if(count == 2)
|
|
zeroPaddingNumber(appendTo, value, 2, 2);
|
|
else
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
|
|
// for "MMMM", write out the whole month name, for "MMM", write out the month
|
|
// abbreviation, for "M" or "MM", write out the month as a number with the
|
|
// appropriate number of digits
|
|
// for "MMMMM", use the narrow form
|
|
case UDAT_MONTH_FIELD:
|
|
if (count == 5)
|
|
_appendSymbol(appendTo, value, fSymbols->fNarrowMonths,
|
|
fSymbols->fNarrowMonthsCount);
|
|
else if (count == 4)
|
|
_appendSymbol(appendTo, value, fSymbols->fMonths,
|
|
fSymbols->fMonthsCount);
|
|
else if (count == 3)
|
|
_appendSymbol(appendTo, value, fSymbols->fShortMonths,
|
|
fSymbols->fShortMonthsCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value + 1, count, maxIntCount);
|
|
break;
|
|
|
|
// for "LLLL", write out the whole month name, for "LLL", write out the month
|
|
// abbreviation, for "L" or "LL", write out the month as a number with the
|
|
// appropriate number of digits
|
|
// for "LLLLL", use the narrow form
|
|
case UDAT_STANDALONE_MONTH_FIELD:
|
|
if (count == 5)
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneNarrowMonths,
|
|
fSymbols->fStandaloneNarrowMonthsCount);
|
|
else if (count == 4)
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneMonths,
|
|
fSymbols->fStandaloneMonthsCount);
|
|
else if (count == 3)
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneShortMonths,
|
|
fSymbols->fStandaloneShortMonthsCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value + 1, count, maxIntCount);
|
|
break;
|
|
|
|
// for "k" and "kk", write out the hour, adjusting midnight to appear as "24"
|
|
case UDAT_HOUR_OF_DAY1_FIELD:
|
|
if (value == 0)
|
|
zeroPaddingNumber(appendTo, cal.getMaximum(UCAL_HOUR_OF_DAY) + 1, count, maxIntCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
|
|
case UDAT_FRACTIONAL_SECOND_FIELD:
|
|
// Fractional seconds left-justify
|
|
{
|
|
fNumberFormat->setMinimumIntegerDigits((count > 3) ? 3 : count);
|
|
fNumberFormat->setMaximumIntegerDigits(maxIntCount);
|
|
if (count == 1) {
|
|
value = (value + 50) / 100;
|
|
} else if (count == 2) {
|
|
value = (value + 5) / 10;
|
|
}
|
|
FieldPosition p(0);
|
|
fNumberFormat->format(value, appendTo, p);
|
|
if (count > 3) {
|
|
fNumberFormat->setMinimumIntegerDigits(count - 3);
|
|
fNumberFormat->format((int32_t)0, appendTo, p);
|
|
}
|
|
}
|
|
break;
|
|
|
|
// for "ee" or "e", use local numeric day-of-the-week
|
|
// for "EEEEE" or "eeeee", write out the narrow day-of-the-week name
|
|
// for "EEEE" or "eeee", write out the wide day-of-the-week name
|
|
// for "EEE" or "EE" or "E" or "eee", write out the abbreviated day-of-the-week name
|
|
case UDAT_DOW_LOCAL_FIELD:
|
|
if ( count < 3 ) {
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
}
|
|
// fall through to EEEEE-EEE handling, but for that we don't want local day-of-week,
|
|
// we want standard day-of-week, so first fix value to work for EEEEE-EEE.
|
|
value = cal.get(UCAL_DAY_OF_WEEK, status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
// fall through, do not break here
|
|
case UDAT_DAY_OF_WEEK_FIELD:
|
|
if (count == 5)
|
|
_appendSymbol(appendTo, value, fSymbols->fNarrowWeekdays,
|
|
fSymbols->fNarrowWeekdaysCount);
|
|
else if (count == 4)
|
|
_appendSymbol(appendTo, value, fSymbols->fWeekdays,
|
|
fSymbols->fWeekdaysCount);
|
|
else
|
|
_appendSymbol(appendTo, value, fSymbols->fShortWeekdays,
|
|
fSymbols->fShortWeekdaysCount);
|
|
break;
|
|
|
|
// for "ccc", write out the abbreviated day-of-the-week name
|
|
// for "cccc", write out the wide day-of-the-week name
|
|
// for "ccccc", use the narrow day-of-the-week name
|
|
case UDAT_STANDALONE_DAY_FIELD:
|
|
if ( count < 3 ) {
|
|
zeroPaddingNumber(appendTo, value, 1, maxIntCount);
|
|
break;
|
|
}
|
|
// fall through to alpha DOW handling, but for that we don't want local day-of-week,
|
|
// we want standard day-of-week, so first fix value.
|
|
value = cal.get(UCAL_DAY_OF_WEEK, status);
|
|
if (U_FAILURE(status)) {
|
|
return;
|
|
}
|
|
if (count == 5)
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneNarrowWeekdays,
|
|
fSymbols->fStandaloneNarrowWeekdaysCount);
|
|
else if (count == 4)
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneWeekdays,
|
|
fSymbols->fStandaloneWeekdaysCount);
|
|
else // count == 3
|
|
_appendSymbol(appendTo, value, fSymbols->fStandaloneShortWeekdays,
|
|
fSymbols->fStandaloneShortWeekdaysCount);
|
|
break;
|
|
|
|
// for and "a" symbol, write out the whole AM/PM string
|
|
case UDAT_AM_PM_FIELD:
|
|
_appendSymbol(appendTo, value, fSymbols->fAmPms,
|
|
fSymbols->fAmPmsCount);
|
|
break;
|
|
|
|
// for "h" and "hh", write out the hour, adjusting noon and midnight to show up
|
|
// as "12"
|
|
case UDAT_HOUR1_FIELD:
|
|
if (value == 0)
|
|
zeroPaddingNumber(appendTo, cal.getLeastMaximum(UCAL_HOUR) + 1, count, maxIntCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
|
|
// for the "z" symbols, we have to check our time zone data first. If we have a
|
|
// localized name for the time zone, then "zzzz" / "zzz" indicate whether
|
|
// daylight time is in effect (long/short) and "zz" / "z" do not (long/short).
|
|
// If we don't have a localized time zone name,
|
|
// then the time zone shows up as "GMT+hh:mm" or "GMT-hh:mm" (where "hh:mm" is the
|
|
// offset from GMT) regardless of how many z's were in the pattern symbol
|
|
case UDAT_TIMEZONE_FIELD:
|
|
case UDAT_TIMEZONE_GENERIC_FIELD:
|
|
case UDAT_TIMEZONE_SPECIAL_FIELD:
|
|
{
|
|
UnicodeString zoneString;
|
|
const ZoneStringFormat *zsf = fSymbols->getZoneStringFormat();
|
|
if (zsf) {
|
|
if (patternCharIndex == UDAT_TIMEZONE_FIELD) {
|
|
if (count < 4) {
|
|
// "z", "zz", "zzz"
|
|
zsf->getSpecificShortString(cal, TRUE /*commonly used only*/,
|
|
zoneString, status);
|
|
} else {
|
|
// "zzzz"
|
|
zsf->getSpecificLongString(cal, zoneString, status);
|
|
}
|
|
} else if (patternCharIndex == UDAT_TIMEZONE_GENERIC_FIELD) {
|
|
if (count == 1) {
|
|
// "v"
|
|
zsf->getGenericShortString(cal, TRUE /*commonly used only*/,
|
|
zoneString, status);
|
|
} else if (count == 4) {
|
|
// "vvvv"
|
|
zsf->getGenericLongString(cal, zoneString, status);
|
|
}
|
|
} else { // patternCharIndex == UDAT_TIMEZONE_SPECIAL_FIELD
|
|
if (count == 1) {
|
|
// "V"
|
|
zsf->getSpecificShortString(cal, FALSE /*ignore commonly used*/,
|
|
zoneString, status);
|
|
} else if (count == 4) {
|
|
// "VVVV"
|
|
zsf->getGenericLocationString(cal, zoneString, status);
|
|
}
|
|
}
|
|
}
|
|
if (zoneString.isEmpty()) {
|
|
appendGMT(appendTo, cal, status);
|
|
} else {
|
|
appendTo += zoneString;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case UDAT_TIMEZONE_RFC_FIELD: // 'Z' - TIMEZONE_RFC
|
|
if (count < 4) {
|
|
// RFC822 format, must use ASCII digits
|
|
value = (cal.get(UCAL_ZONE_OFFSET, status) + cal.get(UCAL_DST_OFFSET, status));
|
|
formatRFC822TZ(appendTo, value);
|
|
} else {
|
|
// long form, localized GMT pattern
|
|
appendGMT(appendTo, cal, status);
|
|
}
|
|
break;
|
|
|
|
case UDAT_QUARTER_FIELD:
|
|
if (count >= 4)
|
|
_appendSymbol(appendTo, value/3, fSymbols->fQuarters,
|
|
fSymbols->fQuartersCount);
|
|
else if (count == 3)
|
|
_appendSymbol(appendTo, value/3, fSymbols->fShortQuarters,
|
|
fSymbols->fShortQuartersCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, (value/3) + 1, count, maxIntCount);
|
|
break;
|
|
|
|
case UDAT_STANDALONE_QUARTER_FIELD:
|
|
if (count >= 4)
|
|
_appendSymbol(appendTo, value/3, fSymbols->fStandaloneQuarters,
|
|
fSymbols->fStandaloneQuartersCount);
|
|
else if (count == 3)
|
|
_appendSymbol(appendTo, value/3, fSymbols->fStandaloneShortQuarters,
|
|
fSymbols->fStandaloneShortQuartersCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, (value/3) + 1, count, maxIntCount);
|
|
break;
|
|
|
|
|
|
// all of the other pattern symbols can be formatted as simple numbers with
|
|
// appropriate zero padding
|
|
default:
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
}
|
|
|
|
// if the field we're formatting is the one the FieldPosition says it's interested
|
|
// in, fill in the FieldPosition with this field's positions
|
|
if (pos.getBeginIndex() == pos.getEndIndex() &&
|
|
pos.getField() == fgPatternIndexToDateFormatField[patternCharIndex]) {
|
|
pos.setBeginIndex(beginOffset);
|
|
pos.setEndIndex(appendTo.length());
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void
|
|
SimpleDateFormat::zeroPaddingNumber(UnicodeString &appendTo, int32_t value, int32_t minDigits, int32_t maxDigits) const
|
|
{
|
|
if (fNumberFormat!=NULL) {
|
|
FieldPosition pos(0);
|
|
|
|
fNumberFormat->setMinimumIntegerDigits(minDigits);
|
|
fNumberFormat->setMaximumIntegerDigits(maxDigits);
|
|
fNumberFormat->format(value, appendTo, pos); // 3rd arg is there to speed up processing
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
/**
|
|
* Format characters that indicate numeric fields. The character
|
|
* at index 0 is treated specially.
|
|
*/
|
|
static const UChar NUMERIC_FORMAT_CHARS[] = {0x4D, 0x59, 0x79, 0x75, 0x64, 0x65, 0x68, 0x48, 0x6D, 0x73, 0x53, 0x44, 0x46, 0x77, 0x57, 0x6B, 0x4B, 0x00}; /* "MYyudehHmsSDFwWkK" */
|
|
|
|
/**
|
|
* Return true if the given format character, occuring count
|
|
* times, represents a numeric field.
|
|
*/
|
|
UBool SimpleDateFormat::isNumeric(UChar formatChar, int32_t count) {
|
|
UnicodeString s(NUMERIC_FORMAT_CHARS);
|
|
int32_t i = s.indexOf(formatChar);
|
|
return (i > 0 || (i == 0 && count < 3));
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& parsePos) const
|
|
{
|
|
int32_t pos = parsePos.getIndex();
|
|
int32_t start = pos;
|
|
UBool ambiguousYear[] = { FALSE };
|
|
int32_t count = 0;
|
|
|
|
// hack, reset tztype, cast away const
|
|
((SimpleDateFormat*)this)->tztype = TZTYPE_UNK;
|
|
|
|
// For parsing abutting numeric fields. 'abutPat' is the
|
|
// offset into 'pattern' of the first of 2 or more abutting
|
|
// numeric fields. 'abutStart' is the offset into 'text'
|
|
// where parsing the fields begins. 'abutPass' starts off as 0
|
|
// and increments each time we try to parse the fields.
|
|
int32_t abutPat = -1; // If >=0, we are in a run of abutting numeric fields
|
|
int32_t abutStart = 0;
|
|
int32_t abutPass = 0;
|
|
UBool inQuote = FALSE;
|
|
|
|
const UnicodeString numericFormatChars(NUMERIC_FORMAT_CHARS);
|
|
|
|
for (int32_t i=0; i<fPattern.length(); ++i) {
|
|
UChar ch = fPattern.charAt(i);
|
|
|
|
// Handle alphabetic field characters.
|
|
if (!inQuote && ((ch >= 0x41 && ch <= 0x5A) || (ch >= 0x61 && ch <= 0x7A))) { // [A-Za-z]
|
|
int32_t fieldPat = i;
|
|
|
|
// Count the length of this field specifier
|
|
count = 1;
|
|
while ((i+1)<fPattern.length() &&
|
|
fPattern.charAt(i+1) == ch) {
|
|
++count;
|
|
++i;
|
|
}
|
|
|
|
if (isNumeric(ch, count)) {
|
|
if (abutPat < 0) {
|
|
// Determine if there is an abutting numeric field. For
|
|
// most fields we can just look at the next characters,
|
|
// but the 'm' field is either numeric or text,
|
|
// depending on the count, so we have to look ahead for
|
|
// that field.
|
|
if ((i+1)<fPattern.length()) {
|
|
UBool abutting;
|
|
UChar nextCh = fPattern.charAt(i+1);
|
|
int32_t k = numericFormatChars.indexOf(nextCh);
|
|
if (k == 0) {
|
|
int32_t j = i+2;
|
|
while (j<fPattern.length() &&
|
|
fPattern.charAt(j) == nextCh) {
|
|
++j;
|
|
}
|
|
abutting = (j-i) < 4; // nextCount < 3
|
|
} else {
|
|
abutting = k > 0;
|
|
}
|
|
|
|
// Record the start of a set of abutting numeric
|
|
// fields.
|
|
if (abutting) {
|
|
abutPat = fieldPat;
|
|
abutStart = pos;
|
|
abutPass = 0;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
abutPat = -1; // End of any abutting fields
|
|
}
|
|
|
|
// Handle fields within a run of abutting numeric fields. Take
|
|
// the pattern "HHmmss" as an example. We will try to parse
|
|
// 2/2/2 characters of the input text, then if that fails,
|
|
// 1/2/2. We only adjust the width of the leftmost field; the
|
|
// others remain fixed. This allows "123456" => 12:34:56, but
|
|
// "12345" => 1:23:45. Likewise, for the pattern "yyyyMMdd" we
|
|
// try 4/2/2, 3/2/2, 2/2/2, and finally 1/2/2.
|
|
if (abutPat >= 0) {
|
|
// If we are at the start of a run of abutting fields, then
|
|
// shorten this field in each pass. If we can't shorten
|
|
// this field any more, then the parse of this set of
|
|
// abutting numeric fields has failed.
|
|
if (fieldPat == abutPat) {
|
|
count -= abutPass++;
|
|
if (count == 0) {
|
|
parsePos.setIndex(start);
|
|
parsePos.setErrorIndex(pos);
|
|
return;
|
|
}
|
|
}
|
|
|
|
pos = subParse(text, pos, ch, count,
|
|
TRUE, FALSE, ambiguousYear, cal);
|
|
|
|
// If the parse fails anywhere in the run, back up to the
|
|
// start of the run and retry.
|
|
if (pos < 0) {
|
|
i = abutPat - 1;
|
|
pos = abutStart;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Handle non-numeric fields and non-abutting numeric
|
|
// fields.
|
|
else {
|
|
int32_t s = pos;
|
|
pos = subParse(text, pos, ch, count,
|
|
FALSE, TRUE, ambiguousYear, cal);
|
|
|
|
if (pos < 0) {
|
|
parsePos.setErrorIndex(s);
|
|
parsePos.setIndex(start);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle literal pattern characters. These are any
|
|
// quoted characters and non-alphabetic unquoted
|
|
// characters.
|
|
else {
|
|
|
|
abutPat = -1; // End of any abutting fields
|
|
|
|
// Handle quotes. Two consecutive quotes is a quote
|
|
// literal, inside or outside of quotes. Otherwise a
|
|
// quote indicates entry or exit from a quoted region.
|
|
if (ch == QUOTE) {
|
|
// Match a quote literal '' within OR outside of quotes
|
|
if ((i+1)<fPattern.length() && fPattern.charAt(i+1)==ch) {
|
|
++i; // Skip over doubled quote
|
|
// Fall through and treat quote as a literal
|
|
} else {
|
|
// Enter or exit quoted region
|
|
inQuote = !inQuote;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// A run of white space in the pattern matches a run
|
|
// of white space in the input text.
|
|
if (uprv_isRuleWhiteSpace(ch)) {
|
|
// Advance over run in pattern
|
|
while ((i+1)<fPattern.length() &&
|
|
uprv_isRuleWhiteSpace(fPattern.charAt(i+1))) {
|
|
++i;
|
|
}
|
|
|
|
// Advance over run in input text
|
|
int32_t s = pos;
|
|
while (pos<text.length() &&
|
|
( u_isUWhiteSpace(text.charAt(pos)) || uprv_isRuleWhiteSpace(text.charAt(pos)))) {
|
|
++pos;
|
|
}
|
|
|
|
// Must see at least one white space char in input
|
|
if (pos > s) {
|
|
continue;
|
|
}
|
|
} else if (pos<text.length() && text.charAt(pos)==ch) {
|
|
// Match a literal
|
|
++pos;
|
|
continue;
|
|
}
|
|
|
|
// We fall through to this point if the match fails
|
|
parsePos.setIndex(start);
|
|
parsePos.setErrorIndex(pos);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// At this point the fields of Calendar have been set. Calendar
|
|
// will fill in default values for missing fields when the time
|
|
// is computed.
|
|
|
|
parsePos.setIndex(pos);
|
|
|
|
// This part is a problem: When we call parsedDate.after, we compute the time.
|
|
// Take the date April 3 2004 at 2:30 am. When this is first set up, the year
|
|
// will be wrong if we're parsing a 2-digit year pattern. It will be 1904.
|
|
// April 3 1904 is a Sunday (unlike 2004) so it is the DST onset day. 2:30 am
|
|
// is therefore an "impossible" time, since the time goes from 1:59 to 3:00 am
|
|
// on that day. It is therefore parsed out to fields as 3:30 am. Then we
|
|
// add 100 years, and get April 3 2004 at 3:30 am. Note that April 3 2004 is
|
|
// a Saturday, so it can have a 2:30 am -- and it should. [LIU]
|
|
/*
|
|
UDate parsedDate = calendar.getTime();
|
|
if( ambiguousYear[0] && !parsedDate.after(fDefaultCenturyStart) ) {
|
|
calendar.add(Calendar.YEAR, 100);
|
|
parsedDate = calendar.getTime();
|
|
}
|
|
*/
|
|
// Because of the above condition, save off the fields in case we need to readjust.
|
|
// The procedure we use here is not particularly efficient, but there is no other
|
|
// way to do this given the API restrictions present in Calendar. We minimize
|
|
// inefficiency by only performing this computation when it might apply, that is,
|
|
// when the two-digit year is equal to the start year, and thus might fall at the
|
|
// front or the back of the default century. This only works because we adjust
|
|
// the year correctly to start with in other cases -- see subParse().
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
if (ambiguousYear[0] || tztype != TZTYPE_UNK) // If this is true then the two-digit year == the default start year
|
|
{
|
|
// We need a copy of the fields, and we need to avoid triggering a call to
|
|
// complete(), which will recalculate the fields. Since we can't access
|
|
// the fields[] array in Calendar, we clone the entire object. This will
|
|
// stop working if Calendar.clone() is ever rewritten to call complete().
|
|
Calendar *copy;
|
|
if (ambiguousYear[0]) {
|
|
copy = cal.clone();
|
|
// Check for failed cloning.
|
|
if (copy == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
goto ExitParse;
|
|
}
|
|
UDate parsedDate = copy->getTime(status);
|
|
// {sfb} check internalGetDefaultCenturyStart
|
|
if (fHaveDefaultCentury && (parsedDate < fDefaultCenturyStart)) {
|
|
// We can't use add here because that does a complete() first.
|
|
cal.set(UCAL_YEAR, fDefaultCenturyStartYear + 100);
|
|
}
|
|
delete copy;
|
|
}
|
|
|
|
if (tztype != TZTYPE_UNK) {
|
|
copy = cal.clone();
|
|
// Check for failed cloning.
|
|
if (copy == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
goto ExitParse;
|
|
}
|
|
const TimeZone & tz = cal.getTimeZone();
|
|
BasicTimeZone *btz = NULL;
|
|
|
|
if (tz.getDynamicClassID() == OlsonTimeZone::getStaticClassID()
|
|
|| tz.getDynamicClassID() == SimpleTimeZone::getStaticClassID()
|
|
|| tz.getDynamicClassID() == RuleBasedTimeZone::getStaticClassID()
|
|
|| tz.getDynamicClassID() == VTimeZone::getStaticClassID()) {
|
|
btz = (BasicTimeZone*)&tz;
|
|
}
|
|
|
|
// Get local millis
|
|
copy->set(UCAL_ZONE_OFFSET, 0);
|
|
copy->set(UCAL_DST_OFFSET, 0);
|
|
UDate localMillis = copy->getTime(status);
|
|
|
|
// Make sure parsed time zone type (Standard or Daylight)
|
|
// matches the rule used by the parsed time zone.
|
|
int32_t raw, dst;
|
|
if (btz != NULL) {
|
|
if (tztype == TZTYPE_STD) {
|
|
btz->getOffsetFromLocal(localMillis,
|
|
BasicTimeZone::kStandard, BasicTimeZone::kStandard, raw, dst, status);
|
|
} else {
|
|
btz->getOffsetFromLocal(localMillis,
|
|
BasicTimeZone::kDaylight, BasicTimeZone::kDaylight, raw, dst, status);
|
|
}
|
|
} else {
|
|
// No good way to resolve ambiguous time at transition,
|
|
// but following code work in most case.
|
|
tz.getOffset(localMillis, TRUE, raw, dst, status);
|
|
}
|
|
|
|
// Now, compare the results with parsed type, either standard or daylight saving time
|
|
int32_t resolvedSavings = dst;
|
|
if (tztype == TZTYPE_STD) {
|
|
if (dst != 0) {
|
|
// Override DST_OFFSET = 0 in the result calendar
|
|
resolvedSavings = 0;
|
|
}
|
|
} else { // tztype == TZTYPE_DST
|
|
if (dst == 0) {
|
|
if (btz != NULL) {
|
|
UDate time = localMillis + raw;
|
|
// We use the nearest daylight saving time rule.
|
|
TimeZoneTransition beforeTrs, afterTrs;
|
|
UDate beforeT = time, afterT = time;
|
|
int32_t beforeSav = 0, afterSav = 0;
|
|
UBool beforeTrsAvail, afterTrsAvail;
|
|
|
|
// Search for DST rule before or on the time
|
|
while (TRUE) {
|
|
beforeTrsAvail = btz->getPreviousTransition(beforeT, TRUE, beforeTrs);
|
|
if (!beforeTrsAvail) {
|
|
break;
|
|
}
|
|
beforeT = beforeTrs.getTime() - 1;
|
|
beforeSav = beforeTrs.getFrom()->getDSTSavings();
|
|
if (beforeSav != 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Search for DST rule after the time
|
|
while (TRUE) {
|
|
afterTrsAvail = btz->getNextTransition(afterT, FALSE, afterTrs);
|
|
if (!afterTrsAvail) {
|
|
break;
|
|
}
|
|
afterT = afterTrs.getTime();
|
|
afterSav = afterTrs.getTo()->getDSTSavings();
|
|
if (afterSav != 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (beforeTrsAvail && afterTrsAvail) {
|
|
if (time - beforeT > afterT - time) {
|
|
resolvedSavings = afterSav;
|
|
} else {
|
|
resolvedSavings = beforeSav;
|
|
}
|
|
} else if (beforeTrsAvail && beforeSav != 0) {
|
|
resolvedSavings = beforeSav;
|
|
} else if (afterTrsAvail && afterSav != 0) {
|
|
resolvedSavings = afterSav;
|
|
} else {
|
|
resolvedSavings = btz->getDSTSavings();
|
|
}
|
|
} else {
|
|
resolvedSavings = tz.getDSTSavings();
|
|
}
|
|
if (resolvedSavings == 0) {
|
|
// final fallback
|
|
resolvedSavings = U_MILLIS_PER_HOUR;
|
|
}
|
|
}
|
|
}
|
|
cal.set(UCAL_ZONE_OFFSET, raw);
|
|
cal.set(UCAL_DST_OFFSET, resolvedSavings);
|
|
delete copy;
|
|
}
|
|
}
|
|
ExitParse:
|
|
// If any Calendar calls failed, we pretend that we
|
|
// couldn't parse the string, when in reality this isn't quite accurate--
|
|
// we did parse it; the Calendar calls just failed.
|
|
if (U_FAILURE(status)) {
|
|
parsePos.setErrorIndex(pos);
|
|
parsePos.setIndex(start);
|
|
}
|
|
}
|
|
|
|
UDate
|
|
SimpleDateFormat::parse( const UnicodeString& text,
|
|
ParsePosition& pos) const {
|
|
// redefined here because the other parse() function hides this function's
|
|
// cunterpart on DateFormat
|
|
return DateFormat::parse(text, pos);
|
|
}
|
|
|
|
UDate
|
|
SimpleDateFormat::parse(const UnicodeString& text, UErrorCode& status) const
|
|
{
|
|
// redefined here because the other parse() function hides this function's
|
|
// counterpart on DateFormat
|
|
return DateFormat::parse(text, status);
|
|
}
|
|
//----------------------------------------------------------------------
|
|
|
|
int32_t SimpleDateFormat::matchQuarterString(const UnicodeString& text,
|
|
int32_t start,
|
|
UCalendarDateFields field,
|
|
const UnicodeString* data,
|
|
int32_t dataCount,
|
|
Calendar& cal) const
|
|
{
|
|
int32_t i = 0;
|
|
int32_t count = dataCount;
|
|
|
|
// There may be multiple strings in the data[] array which begin with
|
|
// the same prefix (e.g., Cerven and Cervenec (June and July) in Czech).
|
|
// We keep track of the longest match, and return that. Note that this
|
|
// unfortunately requires us to test all array elements.
|
|
int32_t bestMatchLength = 0, bestMatch = -1;
|
|
|
|
// {sfb} kludge to support case-insensitive comparison
|
|
// {markus 2002oct11} do not just use caseCompareBetween because we do not know
|
|
// the length of the match after case folding
|
|
// {alan 20040607} don't case change the whole string, since the length
|
|
// can change
|
|
// TODO we need a case-insensitive startsWith function
|
|
UnicodeString lcase, lcaseText;
|
|
text.extract(start, INT32_MAX, lcaseText);
|
|
lcaseText.foldCase();
|
|
|
|
for (; i < count; ++i)
|
|
{
|
|
// Always compare if we have no match yet; otherwise only compare
|
|
// against potentially better matches (longer strings).
|
|
|
|
lcase.fastCopyFrom(data[i]).foldCase();
|
|
int32_t length = lcase.length();
|
|
|
|
if (length > bestMatchLength &&
|
|
lcaseText.compareBetween(0, length, lcase, 0, length) == 0)
|
|
{
|
|
bestMatch = i;
|
|
bestMatchLength = length;
|
|
}
|
|
}
|
|
if (bestMatch >= 0)
|
|
{
|
|
cal.set(field, bestMatch * 3);
|
|
|
|
// Once we have a match, we have to determine the length of the
|
|
// original source string. This will usually be == the length of
|
|
// the case folded string, but it may differ (e.g. sharp s).
|
|
lcase.fastCopyFrom(data[bestMatch]).foldCase();
|
|
|
|
// Most of the time, the length will be the same as the length
|
|
// of the string from the locale data. Sometimes it will be
|
|
// different, in which case we will have to figure it out by
|
|
// adding a character at a time, until we have a match. We do
|
|
// this all in one loop, where we try 'len' first (at index
|
|
// i==0).
|
|
int32_t len = data[bestMatch].length(); // 99+% of the time
|
|
int32_t n = text.length() - start;
|
|
for (i=0; i<=n; ++i) {
|
|
int32_t j=i;
|
|
if (i == 0) {
|
|
j = len;
|
|
} else if (i == len) {
|
|
continue; // already tried this when i was 0
|
|
}
|
|
text.extract(start, j, lcaseText);
|
|
lcaseText.foldCase();
|
|
if (lcase == lcaseText) {
|
|
return start + j;
|
|
}
|
|
}
|
|
}
|
|
|
|
return -start;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
int32_t SimpleDateFormat::matchString(const UnicodeString& text,
|
|
int32_t start,
|
|
UCalendarDateFields field,
|
|
const UnicodeString* data,
|
|
int32_t dataCount,
|
|
Calendar& cal) const
|
|
{
|
|
int32_t i = 0;
|
|
int32_t count = dataCount;
|
|
|
|
if (field == UCAL_DAY_OF_WEEK) i = 1;
|
|
|
|
// There may be multiple strings in the data[] array which begin with
|
|
// the same prefix (e.g., Cerven and Cervenec (June and July) in Czech).
|
|
// We keep track of the longest match, and return that. Note that this
|
|
// unfortunately requires us to test all array elements.
|
|
int32_t bestMatchLength = 0, bestMatch = -1;
|
|
|
|
// {sfb} kludge to support case-insensitive comparison
|
|
// {markus 2002oct11} do not just use caseCompareBetween because we do not know
|
|
// the length of the match after case folding
|
|
// {alan 20040607} don't case change the whole string, since the length
|
|
// can change
|
|
// TODO we need a case-insensitive startsWith function
|
|
UnicodeString lcase, lcaseText;
|
|
text.extract(start, INT32_MAX, lcaseText);
|
|
lcaseText.foldCase();
|
|
|
|
for (; i < count; ++i)
|
|
{
|
|
// Always compare if we have no match yet; otherwise only compare
|
|
// against potentially better matches (longer strings).
|
|
|
|
lcase.fastCopyFrom(data[i]).foldCase();
|
|
int32_t length = lcase.length();
|
|
|
|
if (length > bestMatchLength &&
|
|
lcaseText.compareBetween(0, length, lcase, 0, length) == 0)
|
|
{
|
|
bestMatch = i;
|
|
bestMatchLength = length;
|
|
}
|
|
}
|
|
if (bestMatch >= 0)
|
|
{
|
|
cal.set(field, bestMatch);
|
|
|
|
// Once we have a match, we have to determine the length of the
|
|
// original source string. This will usually be == the length of
|
|
// the case folded string, but it may differ (e.g. sharp s).
|
|
lcase.fastCopyFrom(data[bestMatch]).foldCase();
|
|
|
|
// Most of the time, the length will be the same as the length
|
|
// of the string from the locale data. Sometimes it will be
|
|
// different, in which case we will have to figure it out by
|
|
// adding a character at a time, until we have a match. We do
|
|
// this all in one loop, where we try 'len' first (at index
|
|
// i==0).
|
|
int32_t len = data[bestMatch].length(); // 99+% of the time
|
|
int32_t n = text.length() - start;
|
|
for (i=0; i<=n; ++i) {
|
|
int32_t j=i;
|
|
if (i == 0) {
|
|
j = len;
|
|
} else if (i == len) {
|
|
continue; // already tried this when i was 0
|
|
}
|
|
text.extract(start, j, lcaseText);
|
|
lcaseText.foldCase();
|
|
if (lcase == lcaseText) {
|
|
return start + j;
|
|
}
|
|
}
|
|
}
|
|
|
|
return -start;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::set2DigitYearStart(UDate d, UErrorCode& status)
|
|
{
|
|
parseAmbiguousDatesAsAfter(d, status);
|
|
}
|
|
|
|
/**
|
|
* Private member function that converts the parsed date strings into
|
|
* timeFields. Returns -start (for ParsePosition) if failed.
|
|
* @param text the time text to be parsed.
|
|
* @param start where to start parsing.
|
|
* @param ch the pattern character for the date field text to be parsed.
|
|
* @param count the count of a pattern character.
|
|
* @return the new start position if matching succeeded; a negative number
|
|
* indicating matching failure, otherwise.
|
|
*/
|
|
int32_t SimpleDateFormat::subParse(const UnicodeString& text, int32_t& start, UChar ch, int32_t count,
|
|
UBool obeyCount, UBool allowNegative, UBool ambiguousYear[], Calendar& cal) const
|
|
{
|
|
Formattable number;
|
|
int32_t value = 0;
|
|
int32_t i;
|
|
ParsePosition pos(0);
|
|
int32_t patternCharIndex;
|
|
UnicodeString temp;
|
|
UChar *patternCharPtr = u_strchr(DateFormatSymbols::getPatternUChars(), ch);
|
|
|
|
#if defined (U_DEBUG_CAL)
|
|
//fprintf(stderr, "%s:%d - [%c] st=%d \n", __FILE__, __LINE__, (char) ch, start);
|
|
#endif
|
|
|
|
if (patternCharPtr == NULL) {
|
|
return -start;
|
|
}
|
|
|
|
patternCharIndex = (UDateFormatField)(patternCharPtr - DateFormatSymbols::getPatternUChars());
|
|
|
|
UCalendarDateFields field = fgPatternIndexToCalendarField[patternCharIndex];
|
|
|
|
// If there are any spaces here, skip over them. If we hit the end
|
|
// of the string, then fail.
|
|
for (;;) {
|
|
if (start >= text.length()) {
|
|
return -start;
|
|
}
|
|
UChar32 c = text.char32At(start);
|
|
if (!u_isUWhiteSpace(c)) {
|
|
break;
|
|
}
|
|
start += UTF_CHAR_LENGTH(c);
|
|
}
|
|
pos.setIndex(start);
|
|
|
|
// We handle a few special cases here where we need to parse
|
|
// a number value. We handle further, more generic cases below. We need
|
|
// to handle some of them here because some fields require extra processing on
|
|
// the parsed value.
|
|
if (patternCharIndex == UDAT_HOUR_OF_DAY1_FIELD ||
|
|
patternCharIndex == UDAT_HOUR1_FIELD ||
|
|
(patternCharIndex == UDAT_DOW_LOCAL_FIELD && count <= 2) ||
|
|
(patternCharIndex == UDAT_STANDALONE_DAY_FIELD && count <= 2) ||
|
|
(patternCharIndex == UDAT_MONTH_FIELD && count <= 2) ||
|
|
(patternCharIndex == UDAT_STANDALONE_MONTH_FIELD && count <= 2) ||
|
|
(patternCharIndex == UDAT_QUARTER_FIELD && count <= 2) ||
|
|
(patternCharIndex == UDAT_STANDALONE_QUARTER_FIELD && count <= 2) ||
|
|
patternCharIndex == UDAT_YEAR_FIELD ||
|
|
patternCharIndex == UDAT_YEAR_WOY_FIELD ||
|
|
patternCharIndex == UDAT_FRACTIONAL_SECOND_FIELD)
|
|
{
|
|
int32_t parseStart = pos.getIndex();
|
|
// It would be good to unify this with the obeyCount logic below,
|
|
// but that's going to be difficult.
|
|
const UnicodeString* src;
|
|
|
|
if (obeyCount) {
|
|
if ((start+count) > text.length()) {
|
|
return -start;
|
|
}
|
|
|
|
text.extractBetween(0, start + count, temp);
|
|
src = &temp;
|
|
} else {
|
|
src = &text;
|
|
}
|
|
|
|
parseInt(*src, number, pos, allowNegative);
|
|
|
|
if (pos.getIndex() == parseStart)
|
|
return -start;
|
|
value = number.getLong();
|
|
}
|
|
|
|
switch (patternCharIndex) {
|
|
case UDAT_ERA_FIELD:
|
|
if (count == 5) {
|
|
return matchString(text, start, UCAL_ERA, fSymbols->fNarrowEras, fSymbols->fNarrowErasCount, cal);
|
|
}
|
|
if (count == 4) {
|
|
return matchString(text, start, UCAL_ERA, fSymbols->fEraNames, fSymbols->fEraNamesCount, cal);
|
|
}
|
|
|
|
return matchString(text, start, UCAL_ERA, fSymbols->fEras, fSymbols->fErasCount, cal);
|
|
|
|
case UDAT_YEAR_FIELD:
|
|
// If there are 3 or more YEAR pattern characters, this indicates
|
|
// that the year value is to be treated literally, without any
|
|
// two-digit year adjustments (e.g., from "01" to 2001). Otherwise
|
|
// we made adjustments to place the 2-digit year in the proper
|
|
// century, for parsed strings from "00" to "99". Any other string
|
|
// is treated literally: "2250", "-1", "1", "002".
|
|
if (count <= 2 && (pos.getIndex() - start) == 2
|
|
&& u_isdigit(text.charAt(start))
|
|
&& u_isdigit(text.charAt(start+1)))
|
|
{
|
|
// Assume for example that the defaultCenturyStart is 6/18/1903.
|
|
// This means that two-digit years will be forced into the range
|
|
// 6/18/1903 to 6/17/2003. As a result, years 00, 01, and 02
|
|
// correspond to 2000, 2001, and 2002. Years 04, 05, etc. correspond
|
|
// to 1904, 1905, etc. If the year is 03, then it is 2003 if the
|
|
// other fields specify a date before 6/18, or 1903 if they specify a
|
|
// date afterwards. As a result, 03 is an ambiguous year. All other
|
|
// two-digit years are unambiguous.
|
|
if(fHaveDefaultCentury) { // check if this formatter even has a pivot year
|
|
int32_t ambiguousTwoDigitYear = fDefaultCenturyStartYear % 100;
|
|
ambiguousYear[0] = (value == ambiguousTwoDigitYear);
|
|
value += (fDefaultCenturyStartYear/100)*100 +
|
|
(value < ambiguousTwoDigitYear ? 100 : 0);
|
|
}
|
|
}
|
|
cal.set(UCAL_YEAR, value);
|
|
return pos.getIndex();
|
|
|
|
case UDAT_YEAR_WOY_FIELD:
|
|
// Comment is the same as for UDAT_Year_FIELDs - look above
|
|
if (count <= 2 && (pos.getIndex() - start) == 2
|
|
&& u_isdigit(text.charAt(start))
|
|
&& u_isdigit(text.charAt(start+1))
|
|
&& fHaveDefaultCentury )
|
|
{
|
|
int32_t ambiguousTwoDigitYear = fDefaultCenturyStartYear % 100;
|
|
ambiguousYear[0] = (value == ambiguousTwoDigitYear);
|
|
value += (fDefaultCenturyStartYear/100)*100 +
|
|
(value < ambiguousTwoDigitYear ? 100 : 0);
|
|
}
|
|
cal.set(UCAL_YEAR_WOY, value);
|
|
return pos.getIndex();
|
|
|
|
case UDAT_MONTH_FIELD:
|
|
if (count <= 2) // i.e., M or MM.
|
|
{
|
|
// Don't want to parse the month if it is a string
|
|
// while pattern uses numeric style: M or MM.
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_MONTH, value - 1);
|
|
return pos.getIndex();
|
|
} else {
|
|
// count >= 3 // i.e., MMM or MMMM
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 first:
|
|
int32_t newStart = 0;
|
|
|
|
if ((newStart = matchString(text, start, UCAL_MONTH,
|
|
fSymbols->fMonths, fSymbols->fMonthsCount, cal)) > 0)
|
|
return newStart;
|
|
else // count == 4 failed, now try count == 3
|
|
return matchString(text, start, UCAL_MONTH,
|
|
fSymbols->fShortMonths, fSymbols->fShortMonthsCount, cal);
|
|
}
|
|
|
|
case UDAT_STANDALONE_MONTH_FIELD:
|
|
if (count <= 2) // i.e., L or LL.
|
|
{
|
|
// Don't want to parse the month if it is a string
|
|
// while pattern uses numeric style: M or MM.
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_MONTH, value - 1);
|
|
return pos.getIndex();
|
|
} else {
|
|
// count >= 3 // i.e., LLL or LLLL
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 first:
|
|
int32_t newStart = 0;
|
|
|
|
if ((newStart = matchString(text, start, UCAL_MONTH,
|
|
fSymbols->fStandaloneMonths, fSymbols->fStandaloneMonthsCount, cal)) > 0)
|
|
return newStart;
|
|
else // count == 4 failed, now try count == 3
|
|
return matchString(text, start, UCAL_MONTH,
|
|
fSymbols->fStandaloneShortMonths, fSymbols->fStandaloneShortMonthsCount, cal);
|
|
}
|
|
|
|
case UDAT_HOUR_OF_DAY1_FIELD:
|
|
// [We computed 'value' above.]
|
|
if (value == cal.getMaximum(UCAL_HOUR_OF_DAY) + 1)
|
|
value = 0;
|
|
cal.set(UCAL_HOUR_OF_DAY, value);
|
|
return pos.getIndex();
|
|
|
|
case UDAT_FRACTIONAL_SECOND_FIELD:
|
|
// Fractional seconds left-justify
|
|
i = pos.getIndex() - start;
|
|
if (i < 3) {
|
|
while (i < 3) {
|
|
value *= 10;
|
|
i++;
|
|
}
|
|
} else {
|
|
int32_t a = 1;
|
|
while (i > 3) {
|
|
a *= 10;
|
|
i--;
|
|
}
|
|
value = (value + (a>>1)) / a;
|
|
}
|
|
cal.set(UCAL_MILLISECOND, value);
|
|
return pos.getIndex();
|
|
|
|
case UDAT_DOW_LOCAL_FIELD:
|
|
if (count <= 2) // i.e., e or ee
|
|
{
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_DOW_LOCAL, value);
|
|
return pos.getIndex();
|
|
}
|
|
// else for eee-eeeee fall through to handling of EEE-EEEEE
|
|
// fall through, do not break here
|
|
case UDAT_DAY_OF_WEEK_FIELD:
|
|
{
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 (EEEE) first:
|
|
int32_t newStart = 0;
|
|
if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fWeekdays, fSymbols->fWeekdaysCount, cal)) > 0)
|
|
return newStart;
|
|
// EEEE failed, now try EEE
|
|
else if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fShortWeekdays, fSymbols->fShortWeekdaysCount, cal)) > 0)
|
|
return newStart;
|
|
// EEE failed, now try EEEEE
|
|
else
|
|
return matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fNarrowWeekdays, fSymbols->fNarrowWeekdaysCount, cal);
|
|
}
|
|
|
|
case UDAT_STANDALONE_DAY_FIELD:
|
|
{
|
|
if (count <= 2) // c or cc
|
|
{
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_DOW_LOCAL, value);
|
|
return pos.getIndex();
|
|
}
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 (cccc) first:
|
|
int32_t newStart = 0;
|
|
if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fStandaloneWeekdays, fSymbols->fStandaloneWeekdaysCount, cal)) > 0)
|
|
return newStart;
|
|
else // cccc failed, now try ccc
|
|
return matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fStandaloneShortWeekdays, fSymbols->fStandaloneShortWeekdaysCount, cal);
|
|
}
|
|
|
|
case UDAT_AM_PM_FIELD:
|
|
return matchString(text, start, UCAL_AM_PM, fSymbols->fAmPms, fSymbols->fAmPmsCount, cal);
|
|
|
|
case UDAT_HOUR1_FIELD:
|
|
// [We computed 'value' above.]
|
|
if (value == cal.getLeastMaximum(UCAL_HOUR)+1)
|
|
value = 0;
|
|
cal.set(UCAL_HOUR, value);
|
|
return pos.getIndex();
|
|
|
|
case UDAT_QUARTER_FIELD:
|
|
if (count <= 2) // i.e., Q or QQ.
|
|
{
|
|
// Don't want to parse the month if it is a string
|
|
// while pattern uses numeric style: Q or QQ.
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_MONTH, (value - 1) * 3);
|
|
return pos.getIndex();
|
|
} else {
|
|
// count >= 3 // i.e., QQQ or QQQQ
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 first:
|
|
int32_t newStart = 0;
|
|
|
|
if ((newStart = matchQuarterString(text, start, UCAL_MONTH,
|
|
fSymbols->fQuarters, fSymbols->fQuartersCount, cal)) > 0)
|
|
return newStart;
|
|
else // count == 4 failed, now try count == 3
|
|
return matchQuarterString(text, start, UCAL_MONTH,
|
|
fSymbols->fShortQuarters, fSymbols->fShortQuartersCount, cal);
|
|
}
|
|
|
|
case UDAT_STANDALONE_QUARTER_FIELD:
|
|
if (count <= 2) // i.e., q or qq.
|
|
{
|
|
// Don't want to parse the month if it is a string
|
|
// while pattern uses numeric style: q or q.
|
|
// [We computed 'value' above.]
|
|
cal.set(UCAL_MONTH, (value - 1) * 3);
|
|
return pos.getIndex();
|
|
} else {
|
|
// count >= 3 // i.e., qqq or qqqq
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 first:
|
|
int32_t newStart = 0;
|
|
|
|
if ((newStart = matchQuarterString(text, start, UCAL_MONTH,
|
|
fSymbols->fStandaloneQuarters, fSymbols->fStandaloneQuartersCount, cal)) > 0)
|
|
return newStart;
|
|
else // count == 4 failed, now try count == 3
|
|
return matchQuarterString(text, start, UCAL_MONTH,
|
|
fSymbols->fStandaloneShortQuarters, fSymbols->fStandaloneShortQuartersCount, cal);
|
|
}
|
|
|
|
case UDAT_TIMEZONE_FIELD:
|
|
case UDAT_TIMEZONE_RFC_FIELD:
|
|
case UDAT_TIMEZONE_GENERIC_FIELD:
|
|
case UDAT_TIMEZONE_SPECIAL_FIELD:
|
|
{
|
|
int32_t offset = 0;
|
|
UBool parsed = FALSE;
|
|
|
|
// Step 1
|
|
// Check if this is a long GMT offset string (either localized or default)
|
|
offset = parseGMT(text, pos);
|
|
if (pos.getIndex() - start > 0) {
|
|
parsed = TRUE;
|
|
}
|
|
if (!parsed) {
|
|
// Step 2
|
|
// Check if this is an RFC822 time zone offset.
|
|
// ICU supports the standard RFC822 format [+|-]HHmm
|
|
// and its extended form [+|-]HHmmSS.
|
|
do {
|
|
int32_t sign = 0;
|
|
UChar signChar = text.charAt(start);
|
|
if (signChar == (UChar)0x002B /* '+' */) {
|
|
sign = 1;
|
|
} else if (signChar == (UChar)0x002D /* '-' */) {
|
|
sign = -1;
|
|
} else {
|
|
// Not an RFC822 offset string
|
|
break;
|
|
}
|
|
|
|
// Parse digits
|
|
int32_t orgPos = start + 1;
|
|
pos.setIndex(orgPos);
|
|
parseInt(text, number, 6, pos, FALSE);
|
|
int32_t numLen = pos.getIndex() - orgPos;
|
|
if (numLen <= 0) {
|
|
break;
|
|
}
|
|
|
|
// Followings are possible format (excluding sign char)
|
|
// HHmmSS
|
|
// HmmSS
|
|
// HHmm
|
|
// Hmm
|
|
// HH
|
|
// H
|
|
int32_t val = number.getLong();
|
|
int32_t hour = 0, min = 0, sec = 0;
|
|
switch(numLen) {
|
|
case 1: // H
|
|
case 2: // HH
|
|
hour = val;
|
|
break;
|
|
case 3: // Hmm
|
|
case 4: // HHmm
|
|
hour = val / 100;
|
|
min = val % 100;
|
|
break;
|
|
case 5: // Hmmss
|
|
case 6: // HHmmss
|
|
hour = val / 10000;
|
|
min = (val % 10000) / 100;
|
|
sec = val % 100;
|
|
break;
|
|
}
|
|
if (hour > 23 || min > 59 || sec > 59) {
|
|
// Invalid value range
|
|
break;
|
|
}
|
|
offset = (((hour * 60) + min) * 60 + sec) * 1000 * sign;
|
|
parsed = TRUE;
|
|
} while (FALSE);
|
|
|
|
if (!parsed) {
|
|
// Failed to parse. Reset the position.
|
|
pos.setIndex(start);
|
|
}
|
|
}
|
|
|
|
if (parsed) {
|
|
// offset was successfully parsed as either a long GMT string or RFC822 zone offset
|
|
// string. Create normalized zone ID for the offset.
|
|
|
|
UnicodeString tzID(gGmt);
|
|
formatRFC822TZ(tzID, offset);
|
|
//TimeZone *customTZ = TimeZone::createTimeZone(tzID);
|
|
TimeZone *customTZ = new SimpleTimeZone(offset, tzID); // faster than TimeZone::createTimeZone
|
|
cal.adoptTimeZone(customTZ);
|
|
|
|
return pos.getIndex();
|
|
}
|
|
|
|
// Step 3
|
|
// At this point, check for named time zones by looking through
|
|
// the locale data from the DateFormatZoneData strings.
|
|
// Want to be able to parse both short and long forms.
|
|
// optimize for calendar's current time zone
|
|
const ZoneStringFormat *zsf = fSymbols->getZoneStringFormat();
|
|
if (zsf) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
const ZoneStringInfo *zsinfo = NULL;
|
|
int32_t matchLen;
|
|
|
|
switch (patternCharIndex) {
|
|
case UDAT_TIMEZONE_FIELD: // 'z'
|
|
if (count < 4) {
|
|
zsinfo = zsf->findSpecificShort(text, start, matchLen, status);
|
|
} else {
|
|
zsinfo = zsf->findSpecificLong(text, start, matchLen, status);
|
|
}
|
|
break;
|
|
case UDAT_TIMEZONE_GENERIC_FIELD: // 'v'
|
|
if (count == 1) {
|
|
zsinfo = zsf->findGenericShort(text, start, matchLen, status);
|
|
} else if (count == 4) {
|
|
zsinfo = zsf->findGenericLong(text, start, matchLen, status);
|
|
}
|
|
break;
|
|
case UDAT_TIMEZONE_SPECIAL_FIELD: // 'V'
|
|
if (count == 1) {
|
|
zsinfo = zsf->findSpecificShort(text, start, matchLen, status);
|
|
} else if (count == 4) {
|
|
zsinfo = zsf->findGenericLocation(text, start, matchLen, status);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (U_SUCCESS(status) && zsinfo != NULL) {
|
|
if (zsinfo->isStandard()) {
|
|
((SimpleDateFormat*)this)->tztype = TZTYPE_STD;
|
|
} else if (zsinfo->isDaylight()) {
|
|
((SimpleDateFormat*)this)->tztype = TZTYPE_DST;
|
|
}
|
|
UnicodeString tzid;
|
|
zsinfo->getID(tzid);
|
|
|
|
UnicodeString current;
|
|
cal.getTimeZone().getID(current);
|
|
if (tzid != current) {
|
|
TimeZone *tz = TimeZone::createTimeZone(tzid);
|
|
cal.adoptTimeZone(tz);
|
|
}
|
|
return start + matchLen;
|
|
}
|
|
}
|
|
// complete failure
|
|
return -start;
|
|
}
|
|
|
|
default:
|
|
// Handle "generic" fields
|
|
int32_t parseStart = pos.getIndex();
|
|
const UnicodeString* src;
|
|
if (obeyCount) {
|
|
if ((start+count) > text.length()) {
|
|
return -start;
|
|
}
|
|
text.extractBetween(0, start + count, temp);
|
|
src = &temp;
|
|
} else {
|
|
src = &text;
|
|
}
|
|
parseInt(*src, number, pos, allowNegative);
|
|
if (pos.getIndex() != parseStart) {
|
|
cal.set(field, number.getLong());
|
|
return pos.getIndex();
|
|
}
|
|
return -start;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse an integer using fNumberFormat. This method is semantically
|
|
* const, but actually may modify fNumberFormat.
|
|
*/
|
|
void SimpleDateFormat::parseInt(const UnicodeString& text,
|
|
Formattable& number,
|
|
ParsePosition& pos,
|
|
UBool allowNegative) const {
|
|
parseInt(text, number, -1, pos, allowNegative);
|
|
}
|
|
|
|
/**
|
|
* Parse an integer using fNumberFormat up to maxDigits.
|
|
*/
|
|
void SimpleDateFormat::parseInt(const UnicodeString& text,
|
|
Formattable& number,
|
|
int32_t maxDigits,
|
|
ParsePosition& pos,
|
|
UBool allowNegative) const {
|
|
UnicodeString oldPrefix;
|
|
DecimalFormat* df = NULL;
|
|
if (!allowNegative &&
|
|
fNumberFormat->getDynamicClassID() == DecimalFormat::getStaticClassID()) {
|
|
df = (DecimalFormat*)fNumberFormat;
|
|
df->getNegativePrefix(oldPrefix);
|
|
df->setNegativePrefix(SUPPRESS_NEGATIVE_PREFIX);
|
|
}
|
|
int32_t oldPos = pos.getIndex();
|
|
fNumberFormat->parse(text, number, pos);
|
|
if (df != NULL) {
|
|
df->setNegativePrefix(oldPrefix);
|
|
}
|
|
|
|
if (maxDigits > 0) {
|
|
// adjust the result to fit into
|
|
// the maxDigits and move the position back
|
|
int32_t nDigits = pos.getIndex() - oldPos;
|
|
if (nDigits > maxDigits) {
|
|
int32_t val = number.getLong();
|
|
nDigits -= maxDigits;
|
|
while (nDigits > 0) {
|
|
val /= 10;
|
|
nDigits--;
|
|
}
|
|
pos.setIndex(oldPos + maxDigits);
|
|
number.setLong(val);
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void SimpleDateFormat::translatePattern(const UnicodeString& originalPattern,
|
|
UnicodeString& translatedPattern,
|
|
const UnicodeString& from,
|
|
const UnicodeString& to,
|
|
UErrorCode& status)
|
|
{
|
|
// run through the pattern and convert any pattern symbols from the version
|
|
// in "from" to the corresponding character ion "to". This code takes
|
|
// quoted strings into account (it doesn't try to translate them), and it signals
|
|
// an error if a particular "pattern character" doesn't appear in "from".
|
|
// Depending on the values of "from" and "to" this can convert from generic
|
|
// to localized patterns or localized to generic.
|
|
if (U_FAILURE(status))
|
|
return;
|
|
|
|
translatedPattern.remove();
|
|
UBool inQuote = FALSE;
|
|
for (int32_t i = 0; i < originalPattern.length(); ++i) {
|
|
UChar c = originalPattern[i];
|
|
if (inQuote) {
|
|
if (c == QUOTE)
|
|
inQuote = FALSE;
|
|
}
|
|
else {
|
|
if (c == QUOTE)
|
|
inQuote = TRUE;
|
|
else if ((c >= 0x0061 /*'a'*/ && c <= 0x007A) /*'z'*/
|
|
|| (c >= 0x0041 /*'A'*/ && c <= 0x005A /*'Z'*/)) {
|
|
int32_t ci = from.indexOf(c);
|
|
if (ci == -1) {
|
|
status = U_INVALID_FORMAT_ERROR;
|
|
return;
|
|
}
|
|
c = to[ci];
|
|
}
|
|
}
|
|
translatedPattern += c;
|
|
}
|
|
if (inQuote) {
|
|
status = U_INVALID_FORMAT_ERROR;
|
|
return;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UnicodeString&
|
|
SimpleDateFormat::toPattern(UnicodeString& result) const
|
|
{
|
|
result = fPattern;
|
|
return result;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UnicodeString&
|
|
SimpleDateFormat::toLocalizedPattern(UnicodeString& result,
|
|
UErrorCode& status) const
|
|
{
|
|
translatePattern(fPattern, result, DateFormatSymbols::getPatternUChars(), fSymbols->fLocalPatternChars, status);
|
|
return result;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::applyPattern(const UnicodeString& pattern)
|
|
{
|
|
fPattern = pattern;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::applyLocalizedPattern(const UnicodeString& pattern,
|
|
UErrorCode &status)
|
|
{
|
|
translatePattern(pattern, fPattern, fSymbols->fLocalPatternChars, DateFormatSymbols::getPatternUChars(), status);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
const DateFormatSymbols*
|
|
SimpleDateFormat::getDateFormatSymbols() const
|
|
{
|
|
return fSymbols;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::adoptDateFormatSymbols(DateFormatSymbols* newFormatSymbols)
|
|
{
|
|
delete fSymbols;
|
|
fSymbols = newFormatSymbols;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void
|
|
SimpleDateFormat::setDateFormatSymbols(const DateFormatSymbols& newFormatSymbols)
|
|
{
|
|
delete fSymbols;
|
|
fSymbols = new DateFormatSymbols(newFormatSymbols);
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
void SimpleDateFormat::adoptCalendar(Calendar* calendarToAdopt)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
DateFormat::adoptCalendar(calendarToAdopt);
|
|
delete fSymbols;
|
|
fSymbols=NULL;
|
|
initializeSymbols(fLocale, fCalendar, status); // we need new symbols
|
|
initializeDefaultCentury(); // we need a new century (possibly)
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
UBool
|
|
SimpleDateFormat::isFieldUnitIgnored(UCalendarDateFields field) const {
|
|
return isFieldUnitIgnored(fPattern, field);
|
|
}
|
|
|
|
|
|
UBool
|
|
SimpleDateFormat::isFieldUnitIgnored(const UnicodeString& pattern,
|
|
UCalendarDateFields field) {
|
|
int32_t fieldLevel = fgCalendarFieldToLevel[field];
|
|
int32_t level;
|
|
UChar ch;
|
|
UBool inQuote = FALSE;
|
|
UChar prevCh = 0;
|
|
int32_t count = 0;
|
|
|
|
for (int32_t i = 0; i < pattern.length(); ++i) {
|
|
ch = pattern[i];
|
|
if (ch != prevCh && count > 0) {
|
|
level = fgPatternCharToLevel[prevCh - PATTERN_CHAR_BASE];
|
|
// the larger the level, the smaller the field unit.
|
|
if ( fieldLevel <= level ) {
|
|
return FALSE;
|
|
}
|
|
count = 0;
|
|
}
|
|
if (ch == QUOTE) {
|
|
if ((i+1) < pattern.length() && pattern[i+1] == QUOTE) {
|
|
++i;
|
|
} else {
|
|
inQuote = ! inQuote;
|
|
}
|
|
}
|
|
else if ( ! inQuote && ((ch >= 0x0061 /*'a'*/ && ch <= 0x007A /*'z'*/)
|
|
|| (ch >= 0x0041 /*'A'*/ && ch <= 0x005A /*'Z'*/))) {
|
|
prevCh = ch;
|
|
++count;
|
|
}
|
|
}
|
|
if ( count > 0 ) {
|
|
// last item
|
|
level = fgPatternCharToLevel[prevCh - PATTERN_CHAR_BASE];
|
|
if ( fieldLevel <= level ) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
|
|
const Locale&
|
|
SimpleDateFormat::getSmpFmtLocale(void) const {
|
|
return fLocale;
|
|
}
|
|
|
|
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|