1556 lines
58 KiB
C++
1556 lines
58 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1997-2001, 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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#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/resbund.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 "uprops.h"
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#include <float.h>
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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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// 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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const UChar SimpleDateFormat::fgGmt[] = {0x0047, 0x004D, 0x0054, 0x0000}; // "GMT"
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const UChar SimpleDateFormat::fgGmtPlus[] = {0x0047, 0x004D, 0x0054, 0x002B, 0x0000}; // "GMT+"
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const UChar SimpleDateFormat::fgGmtMinus[] = {0x0047, 0x004D, 0x0054, 0x002D, 0x0000}; // "GMT-"
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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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const UChar SimpleDateFormat::fgDefaultPattern[] =
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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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const char SimpleDateFormat::fgDateTimePatternsTag[]="DateTimePatterns";
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const char SimpleDateFormat::fgClassID = 0; // Value is irrelevant
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/**
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* This value of defaultCenturyStart indicates that the system default is to be
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* used.
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*/
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const UDate SimpleDateFormat::fgSystemDefaultCentury = DBL_MIN;
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const int32_t SimpleDateFormat::fgSystemDefaultCenturyYear = -1;
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UDate SimpleDateFormat::fgSystemDefaultCenturyStart = DBL_MIN;
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int32_t SimpleDateFormat::fgSystemDefaultCenturyStartYear = -1;
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static const UChar QUOTE = 0x27; // Single quote
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//----------------------------------------------------------------------
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SimpleDateFormat::~SimpleDateFormat()
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{
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delete fSymbols;
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}
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//----------------------------------------------------------------------
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SimpleDateFormat::SimpleDateFormat(UErrorCode& status)
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: fSymbols(NULL),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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construct(kShort, (EStyle) (kShort + kDateOffset), Locale::getDefault(), status);
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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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fSymbols(new DateFormatSymbols(status)),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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initialize(Locale::getDefault(), status);
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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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fSymbols(new DateFormatSymbols(locale, status)),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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initialize(locale, status);
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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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fSymbols(symbolsToAdopt),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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initialize(Locale::getDefault(), status);
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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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fSymbols(new DateFormatSymbols(symbols)),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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initialize(Locale::getDefault(), status);
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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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: fSymbols(NULL),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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construct(timeStyle, dateStyle, locale, status);
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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(fgDefaultPattern),
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fSymbols(NULL),
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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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{
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if (U_FAILURE(status)) return;
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fSymbols = new DateFormatSymbols(locale, 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(locale, status);
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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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fDefaultCenturyStart(fgSystemDefaultCentury),
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fDefaultCenturyStartYear(fgSystemDefaultCenturyYear)
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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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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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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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other.getDynamicClassID() == getStaticClassID())
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{
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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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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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// load up the DateTimePatters resource from the appropriate locale (throw
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// an error if for some weird reason the resource is malformed)
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ResourceBundle resources((char *)0, locale, status);
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ResourceBundle dateTimePatterns = resources.get(fgDateTimePatternsTag, status);
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if (U_FAILURE(status)) return;
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if (dateTimePatterns.getSize() <= 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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// create a symbols object from the locale
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fSymbols = new DateFormatSymbols(locale, 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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UnicodeString str;
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// Move dateStyle from the range [0, 3] to [4, 7] if necessary
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//if (dateStyle >= 0 && dateStyle < DATE_OFFSET) dateStyle = (EStyle)(dateStyle + DATE_OFFSET);
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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) &&
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(dateStyle != kNone))
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{
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// Object[] dateTimeArgs = {
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// dateTimePatterns[timeStyle], dateTimePatterns[dateStyle]
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// };
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// pattern = MessageFormat.format(dateTimePatterns[8], dateTimeArgs);
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Formattable *timeDateArray = new Formattable[2];
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/* test for NULL */
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if (timeDateArray == 0) {
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status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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//timeDateArray[0].setString(UnicodeString(dateTimePatterns[timeStyle]));
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//timeDateArray[1].setString(UnicodeString(dateTimePatterns[dateStyle]));
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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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timeDateArray[0].adoptString(&(new UnicodeString)->fastCopyFrom(dateTimePatterns.getStringEx(timeStyle, status)));
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timeDateArray[1].adoptString(&(new UnicodeString)->fastCopyFrom(dateTimePatterns.getStringEx(dateStyle, status)));
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//MessageFormat::format(UnicodeString(dateTimePatterns[kDateTime]), timeDateArray, 2, fPattern, status);
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MessageFormat::format(dateTimePatterns.getStringEx(kDateTime, status), timeDateArray, 2, fPattern, status);
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delete [] timeDateArray;
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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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//else if (timeStyle != kNone) fPattern = UnicodeString(dateTimePatterns[timeStyle]);
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//else if (dateStyle != kNone) fPattern = UnicodeString(dateTimePatterns[dateStyle]);
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// fastCopyFrom() - see DateFormatSymbols::assignArray comments
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else if (timeStyle != kNone) fPattern.fastCopyFrom(dateTimePatterns.getStringEx(timeStyle, status));
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else if (dateStyle != kNone) fPattern.fastCopyFrom(dateTimePatterns.getStringEx(dateStyle, status));
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// and if it includes _neither_, that's an error
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else 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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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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// {sfb} should this be here?
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if (fSymbols->fZoneStringsColCount < 1)
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{
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status = U_INVALID_FORMAT_ERROR; // Check for bogus locale data
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return;
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}
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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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fCalendar = Calendar::createInstance(TimeZone::createDefault(), locale, status);
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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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initializeDefaultCentury();
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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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fDefaultCenturyStart = internalGetDefaultCenturyStart();
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fDefaultCenturyStartYear = internalGetDefaultCenturyStartYear();
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UErrorCode status = U_ZERO_ERROR;
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fCalendar->setTime(fDefaultCenturyStart, status);
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// {sfb} throw away error
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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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fCalendar->setTime(startDate, status);
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if(U_SUCCESS(status)) {
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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&
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SimpleDateFormat::format(Calendar& cal, UnicodeString& appendTo, FieldPosition& pos) const
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{
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UErrorCode status = U_ZERO_ERROR;
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pos.setBeginIndex(0);
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pos.setEndIndex(0);
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UBool inQuote = FALSE;
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UChar prevCh = 0;
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int32_t count = 0;
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// loop through the pattern string character by character
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for (int32_t i = 0; i < fPattern.length() && U_SUCCESS(status); ++i) {
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UChar ch = fPattern[i];
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// Use subFormat() to format a repeated pattern character
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// when a different pattern or non-pattern character is seen
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if (ch != prevCh && count > 0) {
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subFormat(appendTo, prevCh, count, pos, cal, status);
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count = 0;
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}
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if (ch == QUOTE) {
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// Consecutive single quotes are a single quote literal,
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// either outside of quotes or between quotes
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if ((i+1) < fPattern.length() && fPattern[i+1] == QUOTE) {
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appendTo += (UChar)QUOTE;
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++i;
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} else {
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inQuote = ! inQuote;
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}
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}
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else if ( ! inQuote && ((ch >= 0x0061 /*'a'*/ && ch <= 0x007A /*'z'*/)
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|| (ch >= 0x0041 /*'A'*/ && ch <= 0x005A /*'Z'*/))) {
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// ch is a date-time pattern character to be interpreted
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// by subFormat(); count the number of times it is repeated
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prevCh = ch;
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++count;
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}
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else {
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// Append quoted characters and unquoted non-pattern characters
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appendTo += ch;
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}
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}
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// Format the last item in the pattern, if any
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if (count > 0) {
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subFormat(appendTo, prevCh, count, pos, cal, status);
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}
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// and if something failed (e.g., an invalid format character), reset our FieldPosition
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// to (0, 0) to show that
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// {sfb} look at this later- are these being set correctly?
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if (U_FAILURE(status)) {
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pos.setBeginIndex(0);
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pos.setEndIndex(0);
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}
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return appendTo;
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}
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UnicodeString&
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SimpleDateFormat::format(const Formattable& obj,
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UnicodeString& appendTo,
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FieldPosition& pos,
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UErrorCode& status) const
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{
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// this is just here to get around the hiding problem
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// (the previous format() override would hide the version of
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// format() on DateFormat that this function correspond to, so we
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// have to redefine it here)
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return DateFormat::format(obj, appendTo, pos, status);
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}
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//----------------------------------------------------------------------
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// Map index into pattern character string to Calendar field number.
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const UCalendarDateFields
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SimpleDateFormat::fgPatternIndexToCalendarField[] =
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{
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UCAL_ERA, UCAL_YEAR, UCAL_MONTH, UCAL_DATE,
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UCAL_HOUR_OF_DAY, UCAL_HOUR_OF_DAY, UCAL_MINUTE,
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UCAL_SECOND, UCAL_MILLISECOND, UCAL_DAY_OF_WEEK,
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UCAL_DAY_OF_YEAR, UCAL_DAY_OF_WEEK_IN_MONTH,
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UCAL_WEEK_OF_YEAR, UCAL_WEEK_OF_MONTH,
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UCAL_AM_PM, UCAL_HOUR, UCAL_HOUR, UCAL_ZONE_OFFSET,
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UCAL_YEAR_WOY, UCAL_DOW_LOCAL
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};
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// Map index into pattern character string to DateFormat field number
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const DateFormat::EField
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SimpleDateFormat::fgPatternIndexToDateFormatField[] = {
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DateFormat::kEraField, DateFormat::kYearField, DateFormat::kMonthField,
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DateFormat::kDateField, DateFormat::kHourOfDay1Field,
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DateFormat::kHourOfDay0Field, DateFormat::kMinuteField,
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DateFormat::kSecondField, DateFormat::kMillisecondField,
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DateFormat::kDayOfWeekField, DateFormat::kDayOfYearField,
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DateFormat::kDayOfWeekInMonthField, DateFormat::kWeekOfYearField,
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|
DateFormat::kWeekOfMonthField, DateFormat::kAmPmField,
|
|
DateFormat::kHour1Field, DateFormat::kHour0Field,
|
|
DateFormat::kTimezoneField, DateFormat::kYearWOYField,
|
|
DateFormat::kDOWLocalField
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::subFormat(UnicodeString &appendTo,
|
|
UChar ch,
|
|
int32_t count,
|
|
FieldPosition& pos,
|
|
Calendar& cal,
|
|
UErrorCode& status) const
|
|
{
|
|
// 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);
|
|
EField 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;
|
|
}
|
|
|
|
patternCharIndex = (EField)(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
|
|
case kEraField:
|
|
appendTo += fSymbols->fEras[value];
|
|
break;
|
|
|
|
// for "yyyy", write out the whole year; for "yy", write out the last 2 digits
|
|
case kYearField:
|
|
case kYearWOYField:
|
|
if (count >= 4)
|
|
zeroPaddingNumber(appendTo, value, 4, maxIntCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value, 2, 2);
|
|
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
|
|
case kMonthField:
|
|
if (count >= 4)
|
|
appendTo += fSymbols->fMonths[value];
|
|
else if (count == 3)
|
|
appendTo += fSymbols->fShortMonths[value];
|
|
else
|
|
zeroPaddingNumber(appendTo, value + 1, count, maxIntCount);
|
|
break;
|
|
|
|
// for "k" and "kk", write out the hour, adjusting midnight to appear as "24"
|
|
case kHourOfDay1Field:
|
|
if (value == 0)
|
|
zeroPaddingNumber(appendTo, cal.getMaximum(UCAL_HOUR_OF_DAY) + 1, count, maxIntCount);
|
|
else
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
|
|
// for "SS" and "S", we want to truncate digits so that you still see the MOST
|
|
// significant digits rather than the LEAST (as is the case with the year)
|
|
case kMillisecondField:
|
|
if (count > 3)
|
|
count = 3;
|
|
else if (count == 2)
|
|
value = value / 10;
|
|
else if (count == 1)
|
|
value = value / 100;
|
|
zeroPaddingNumber(appendTo, value, count, maxIntCount);
|
|
break;
|
|
|
|
// for "EEEE", write out the day-of-the-week name; otherwise, use the abbreviation
|
|
case kDayOfWeekField:
|
|
if (count >= 4)
|
|
appendTo += fSymbols->fWeekdays[value];
|
|
else
|
|
appendTo += fSymbols->fShortWeekdays[value];
|
|
break;
|
|
|
|
// for and "a" symbol, write out the whole AM/PM string
|
|
case kAmPmField:
|
|
appendTo += fSymbols->fAmPms[value];
|
|
break;
|
|
|
|
// for "h" and "hh", write out the hour, adjusting noon and midnight to show up
|
|
// as "12"
|
|
case kHour1Field:
|
|
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" is the whole name and anything
|
|
// shorter is the abbreviation (we also have to check for daylight savings time
|
|
// since the name will be different). 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 kTimezoneField: {
|
|
UnicodeString str;
|
|
int32_t zoneIndex = fSymbols->getZoneIndex(cal.getTimeZone().getID(str));
|
|
if (zoneIndex == -1) {
|
|
value = cal.get(UCAL_ZONE_OFFSET, status) +
|
|
cal.get(UCAL_DST_OFFSET, status);
|
|
|
|
if (value < 0) {
|
|
appendTo += fgGmtMinus;
|
|
value = -value; // suppress the '-' sign for text display.
|
|
}
|
|
else
|
|
appendTo += fgGmtPlus;
|
|
|
|
zeroPaddingNumber(appendTo, (int32_t)(value/U_MILLIS_PER_HOUR), 2, 2);
|
|
appendTo += (UChar)0x003A /*':'*/;
|
|
zeroPaddingNumber(appendTo, (int32_t)((value%U_MILLIS_PER_HOUR)/U_MILLIS_PER_MINUTE), 2, 2);
|
|
}
|
|
else if (cal.get(UCAL_DST_OFFSET, status) != 0) {
|
|
if (count >= 4)
|
|
appendTo += fSymbols->fZoneStrings[zoneIndex][3];
|
|
else
|
|
appendTo += fSymbols->fZoneStrings[zoneIndex][4];
|
|
}
|
|
else {
|
|
if (count >= 4)
|
|
appendTo += fSymbols->fZoneStrings[zoneIndex][1];
|
|
else
|
|
appendTo += fSymbols->fZoneStrings[zoneIndex][2];
|
|
}
|
|
}
|
|
break;
|
|
|
|
// all of the other pattern symbols can be formatted as simple numbers with
|
|
// appropriate zero padding
|
|
default:
|
|
// case kDateField:
|
|
// case kHourOfDay0Field:
|
|
// case kMinuteField:
|
|
// case kSecondField:
|
|
// case kDayOfYearField:
|
|
// case kDayOfWeekInMonthField:
|
|
// case kWeekOfYearField:
|
|
// case kWeekOfMonthField:
|
|
// case kHour0Field:
|
|
// case kDOWLocalField:
|
|
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.getField() == fgPatternIndexToDateFormatField[patternCharIndex]) {
|
|
if (pos.getBeginIndex() == 0 && pos.getEndIndex() == 0) {
|
|
pos.setBeginIndex(beginOffset);
|
|
pos.setEndIndex(appendTo.length());
|
|
}
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
void
|
|
SimpleDateFormat::zeroPaddingNumber(UnicodeString &appendTo, int32_t value, int32_t minDigits, int32_t maxDigits) const
|
|
{
|
|
FieldPosition pos(0);
|
|
|
|
fNumberFormat->setMinimumIntegerDigits(minDigits);
|
|
fNumberFormat->setMaximumIntegerDigits(maxDigits);
|
|
fNumberFormat->format(value, appendTo, pos); // 3rd arg is there to speed up processing
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
/**
|
|
* Format characters that indicate numeric fields. The character
|
|
* at index 0 is treated specially.
|
|
*/
|
|
static const UChar NUMERIC_FORMAT_CHARS[] = {0x4D, 0x79, 0x75, 0x64, 0x68, 0x48, 0x6D, 0x73, 0x53, 0x44, 0x46, 0x77, 0x57, 0x6B, 0x4B, 0x00}; /* "MyudhHmsSDFwWkK" */
|
|
|
|
/**
|
|
* Return true if the given format character, occuring count
|
|
* times, represents a numeric field.
|
|
*/
|
|
UBool SimpleDateFormat::isNumeric(UChar formatChar, int32_t count) {
|
|
UnicodeString s(NUMERIC_FORMAT_CHARS);
|
|
int32_t i = s.indexOf(formatChar);
|
|
return (i > 0 || (i == 0 && count < 3));
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& parsePos) const
|
|
{
|
|
int32_t pos = parsePos.getIndex();
|
|
int32_t start = pos;
|
|
UBool ambiguousYear[] = { FALSE };
|
|
int32_t count = 0;
|
|
|
|
// 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))) {
|
|
++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]) // 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 = cal.clone();
|
|
UDate parsedDate = copy->getTime(status);
|
|
// {sfb} check internalGetDefaultCenturyStart
|
|
if (parsedDate < internalGetDefaultCenturyStart())
|
|
{
|
|
// We can't use add here because that does a complete() first.
|
|
cal.set(UCAL_YEAR, internalGetDefaultCenturyStartYear() + 100);
|
|
}
|
|
delete copy;
|
|
}
|
|
|
|
// If any Calendar calls failed, we pretend that we
|
|
// couldn't parse the string, when in reality this isn't quite accurate--
|
|
// we did parse it; the Calendar calls just failed.
|
|
if (U_FAILURE(status)) {
|
|
parsePos.setErrorIndex(pos);
|
|
parsePos.setIndex(start);
|
|
}
|
|
}
|
|
|
|
UDate
|
|
SimpleDateFormat::parse( const UnicodeString& text,
|
|
ParsePosition& pos) const {
|
|
// redefined here because the other parse() function hides this function's
|
|
// cunterpart on DateFormat
|
|
return DateFormat::parse(text, pos);
|
|
}
|
|
|
|
UDate
|
|
SimpleDateFormat::parse(const UnicodeString& text, UErrorCode& status) const
|
|
{
|
|
// redefined here because the other parse() function hides this function's
|
|
// counterpart on DateFormat
|
|
return DateFormat::parse(text, status);
|
|
}
|
|
//----------------------------------------------------------------------
|
|
|
|
int32_t SimpleDateFormat::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
|
|
UnicodeString lcaseText;
|
|
lcaseText.fastCopyFrom(text).foldCase();
|
|
|
|
for (; i < count; ++i)
|
|
{
|
|
int32_t length = data[i].length();
|
|
// Always compare if we have no match yet; otherwise only compare
|
|
// against potentially better matches (longer strings).
|
|
|
|
UnicodeString lcase;
|
|
lcase.fastCopyFrom(data[i]).foldCase();
|
|
|
|
if (length > bestMatchLength && (lcaseText.compareBetween(start, start + length, lcase, 0, length)) == 0)
|
|
{
|
|
bestMatch = i;
|
|
bestMatchLength = length;
|
|
}
|
|
}
|
|
if (bestMatch >= 0)
|
|
{
|
|
cal.set(field, bestMatch);
|
|
return start + bestMatchLength;
|
|
}
|
|
|
|
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 (patternCharPtr == NULL) {
|
|
return -start;
|
|
}
|
|
|
|
patternCharIndex = (EField)(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 == kHourOfDay1Field /*HOUR_OF_DAY1_FIELD*/ ||
|
|
patternCharIndex == kHour1Field /*HOUR1_FIELD*/ ||
|
|
(patternCharIndex == kMonthField /*MONTH_FIELD*/ && count <= 2) ||
|
|
patternCharIndex == kYearField /*YEAR*/ ||
|
|
patternCharIndex == kYearWOYField)
|
|
{
|
|
int32_t parseStart = pos.getIndex(); // WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
// 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)
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
return -start;
|
|
value = number.getLong();
|
|
}
|
|
|
|
switch (patternCharIndex) {
|
|
case kEraField:
|
|
return matchString(text, start, UCAL_ERA, fSymbols->fEras, fSymbols->fErasCount, cal);
|
|
case kYearField:
|
|
// 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.
|
|
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 kYearWOYField:
|
|
// Comment is the same as for kYearFiels - look above
|
|
if (count <= 2 && (pos.getIndex() - start) == 2
|
|
&& u_isdigit(text.charAt(start))
|
|
&& u_isdigit(text.charAt(start+1)))
|
|
{
|
|
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 kMonthField:
|
|
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 kHourOfDay1Field:
|
|
// [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 kDayOfWeekField:
|
|
{
|
|
// Want to be able to parse both short and long forms.
|
|
// Try count == 4 (DDDD) first:
|
|
int32_t newStart = 0;
|
|
if ((newStart = matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fWeekdays, fSymbols->fWeekdaysCount, cal)) > 0)
|
|
return newStart;
|
|
else // DDDD failed, now try DDD
|
|
return matchString(text, start, UCAL_DAY_OF_WEEK,
|
|
fSymbols->fShortWeekdays, fSymbols->fShortWeekdaysCount, cal);
|
|
}
|
|
case kAmPmField:
|
|
return matchString(text, start, UCAL_AM_PM, fSymbols->fAmPms, fSymbols->fAmPmsCount, cal);
|
|
case kHour1Field:
|
|
// [We computed 'value' above.]
|
|
if (value == cal.getLeastMaximum(UCAL_HOUR)+1)
|
|
value = 0;
|
|
cal.set(UCAL_HOUR, value);
|
|
return pos.getIndex();
|
|
case kTimezoneField:
|
|
{
|
|
// First try to parse generic forms such as GMT-07:00. Do this first
|
|
// in case localized DateFormatZoneData contains the string "GMT"
|
|
// for a zone; in that case, we don't want to match the first three
|
|
// characters of GMT+/-HH:MM etc.
|
|
|
|
UnicodeString lcaseText(text);
|
|
UnicodeString lcaseGMT(fgGmt);
|
|
int32_t sign = 0;
|
|
int32_t offset;
|
|
int32_t gmtLen = lcaseGMT.length();
|
|
|
|
// For time zones that have no known names, look for strings
|
|
// of the form:
|
|
// GMT[+-]hours:minutes or
|
|
// GMT[+-]hhmm or
|
|
// GMT.
|
|
|
|
// {sfb} kludge for case-insensitive compare
|
|
lcaseText.toLower();
|
|
lcaseGMT.toLower();
|
|
|
|
if ((text.length() - start) > gmtLen &&
|
|
(lcaseText.compare(start, gmtLen, lcaseGMT, 0, gmtLen)) == 0)
|
|
{
|
|
cal.set(UCAL_DST_OFFSET, 0);
|
|
|
|
pos.setIndex(start + gmtLen);
|
|
|
|
if( text[pos.getIndex()] == 0x002B /*'+'*/ )
|
|
sign = 1;
|
|
else if( text[pos.getIndex()] == 0x002D /*'-'*/ )
|
|
sign = -1;
|
|
else {
|
|
cal.set(UCAL_ZONE_OFFSET, 0 );
|
|
return pos.getIndex();
|
|
}
|
|
|
|
// Look for hours:minutes or hhmm.
|
|
pos.setIndex(pos.getIndex() + 1);
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
int32_t parseStart = pos.getIndex();
|
|
Formattable tzNumber;
|
|
fNumberFormat->parse(text, tzNumber, pos);
|
|
if( pos.getIndex() == parseStart) {
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
return -start;
|
|
}
|
|
if( text[pos.getIndex()] == 0x003A /*':'*/ ) {
|
|
// This is the hours:minutes case
|
|
offset = tzNumber.getLong() * 60;
|
|
pos.setIndex(pos.getIndex() + 1);
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
parseStart = pos.getIndex();
|
|
fNumberFormat->parse(text, tzNumber, pos);
|
|
if( pos.getIndex() == parseStart) {
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
return -start;
|
|
}
|
|
offset += tzNumber.getLong();
|
|
}
|
|
else {
|
|
// This is the hhmm case.
|
|
offset = tzNumber.getLong();
|
|
if( offset < 24 )
|
|
offset *= 60;
|
|
else
|
|
offset = offset % 100 + offset / 100 * 60;
|
|
}
|
|
|
|
// Fall through for final processing below of 'offset' and 'sign'.
|
|
}
|
|
else {
|
|
// 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.
|
|
const UnicodeString *zs;
|
|
int32_t j;
|
|
|
|
for (i = 0; i < fSymbols->fZoneStringsRowCount; i++)
|
|
{
|
|
// Checking long and short zones [1 & 2],
|
|
// and long and short daylight [3 & 4].
|
|
for (j = 1; j <= 4; ++j)
|
|
{
|
|
zs = &fSymbols->fZoneStrings[i][j];
|
|
// ### TODO markus 20021014: This use of caseCompare() will fail
|
|
// if the text contains a character that case-folds into multiple
|
|
// characters. In that case, zs->length() may be too long, and it does not match.
|
|
// We need a case-insensitive version of startsWith().
|
|
// There are similar cases of such caseCompare() uses elsewhere in ICU.
|
|
if (0 == (text.caseCompare(start, zs->length(), *zs, 0))) {
|
|
TimeZone *tz = TimeZone::createTimeZone(fSymbols->fZoneStrings[i][0]);
|
|
cal.set(UCAL_ZONE_OFFSET, tz->getRawOffset());
|
|
// Must call set() with something -- TODO -- Fix this to
|
|
// use the correct DST SAVINGS for the zone.
|
|
delete tz;
|
|
cal.set(UCAL_DST_OFFSET, j >= 3 ? U_MILLIS_PER_HOUR : 0);
|
|
return (start + fSymbols->fZoneStrings[i][j].length());
|
|
}
|
|
}
|
|
}
|
|
|
|
// As a last resort, look for numeric timezones of the form
|
|
// [+-]hhmm as specified by RFC 822. This code is actually
|
|
// a little more permissive than RFC 822. It will try to do
|
|
// its best with numbers that aren't strictly 4 digits long.
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
DecimalFormat *fmt = new DecimalFormat("+####;-####", status);
|
|
if(U_FAILURE(status))
|
|
return -start;
|
|
fmt->setParseIntegerOnly(TRUE);
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
int32_t parseStart = pos.getIndex();
|
|
Formattable tzNumber;
|
|
fmt->parse( text, tzNumber, pos );
|
|
if( pos.getIndex() == parseStart) {
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
return -start; // Wasn't actually a number.
|
|
}
|
|
offset = tzNumber.getLong();
|
|
sign = 1;
|
|
if( offset < 0 ) {
|
|
sign = -1;
|
|
offset = -offset;
|
|
}
|
|
if( offset < 24 )
|
|
offset = offset * 60;
|
|
else
|
|
offset = offset % 100 + offset / 100 * 60;
|
|
|
|
// Fall through for final processing below of 'offset' and 'sign'.
|
|
}
|
|
|
|
// Do the final processing for both of the above cases. We only
|
|
// arrive here if the form GMT+/-... or an RFC 822 form was seen.
|
|
if (sign != 0)
|
|
{
|
|
offset *= U_MILLIS_PER_MINUTE * sign;
|
|
|
|
if (cal.getTimeZone().useDaylightTime())
|
|
{
|
|
cal.set(UCAL_DST_OFFSET, U_MILLIS_PER_HOUR);
|
|
offset -= U_MILLIS_PER_HOUR;
|
|
}
|
|
cal.set(UCAL_ZONE_OFFSET, offset);
|
|
|
|
return pos.getIndex();
|
|
}
|
|
|
|
// All efforts to parse a zone failed.
|
|
return -start;
|
|
}
|
|
default:
|
|
// case 3: // 'd' - DATE
|
|
// case 5: // 'H' - HOUR_OF_DAY:0-based. eg, 23:59 + 1 hour =>> 00:59
|
|
// case 6: // 'm' - MINUTE
|
|
// case 7: // 's' - SECOND
|
|
// case 8: // 'S' - MILLISECOND
|
|
// case 10: // 'D' - DAY_OF_YEAR
|
|
// case 11: // 'F' - DAY_OF_WEEK_IN_MONTH
|
|
// case 12: // 'w' - WEEK_OF_YEAR
|
|
// case 13: // 'W' - WEEK_OF_MONTH
|
|
// case 16: // 'K' - HOUR: 0-based. eg, 11PM + 1 hour =>> 0 AM
|
|
// 'e' - DOW_LOCAL
|
|
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
int32_t parseStart = pos.getIndex();
|
|
// Handle "generic" fields
|
|
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) {
|
|
// WORK AROUND BUG IN NUMBER FORMAT IN 1.2B3
|
|
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 {
|
|
UnicodeString oldPrefix;
|
|
DecimalFormat* df = NULL;
|
|
if (!allowNegative &&
|
|
fNumberFormat->getDynamicClassID() == DecimalFormat::getStaticClassID()) {
|
|
df = (DecimalFormat*)fNumberFormat;
|
|
df->getNegativePrefix(oldPrefix);
|
|
df->setNegativePrefix(SUPPRESS_NEGATIVE_PREFIX);
|
|
}
|
|
fNumberFormat->parse(text, number, pos);
|
|
if (df != NULL) {
|
|
df->setNegativePrefix(oldPrefix);
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
UDate
|
|
SimpleDateFormat::internalGetDefaultCenturyStart() const
|
|
{
|
|
// lazy-evaluate systemDefaultCenturyStart
|
|
if (fgSystemDefaultCenturyStart == fgSystemDefaultCentury)
|
|
initializeSystemDefaultCentury();
|
|
|
|
// use defaultCenturyStart unless it's the flag value;
|
|
// then use systemDefaultCenturyStart
|
|
return (fDefaultCenturyStart == fgSystemDefaultCentury) ?
|
|
fgSystemDefaultCenturyStart : fDefaultCenturyStart;
|
|
}
|
|
|
|
int32_t
|
|
SimpleDateFormat::internalGetDefaultCenturyStartYear() const
|
|
{
|
|
// lazy-evaluate systemDefaultCenturyStartYear
|
|
if (fgSystemDefaultCenturyStart == fgSystemDefaultCentury)
|
|
initializeSystemDefaultCentury();
|
|
|
|
// use defaultCenturyStart unless it's the flag value;
|
|
// then use systemDefaultCenturyStartYear
|
|
//return (fDefaultCenturyStart == fgSystemDefaultCentury) ?
|
|
return (fDefaultCenturyStartYear == fgSystemDefaultCenturyYear) ?
|
|
fgSystemDefaultCenturyStartYear : fDefaultCenturyStartYear;
|
|
}
|
|
|
|
void
|
|
SimpleDateFormat::initializeSystemDefaultCentury()
|
|
{
|
|
// initialize systemDefaultCentury and systemDefaultCenturyYear based
|
|
// on the current time. They'll be set to 80 years before
|
|
// the current time.
|
|
// No point in locking as it should be idempotent.
|
|
if (fgSystemDefaultCenturyStart == fgSystemDefaultCentury)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
Calendar *calendar = Calendar::createInstance(status);
|
|
if (calendar != NULL && U_SUCCESS(status))
|
|
{
|
|
calendar->setTime(Calendar::getNow(), status);
|
|
calendar->add(UCAL_YEAR, -80, status);
|
|
fgSystemDefaultCenturyStart = calendar->getTime(status);
|
|
fgSystemDefaultCenturyStartYear = calendar->get(UCAL_YEAR, status);
|
|
delete calendar;
|
|
}
|
|
// We have no recourse upon failure unless we want to propagate the failure
|
|
// out.
|
|
}
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|