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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2009-2013, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*
* This file contains the class SimpleDateFormatStaticSets
*
* SimpleDateFormatStaticSets holds the UnicodeSets that are needed for lenient
* parsing of literal characters in date/time strings.
********************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/uniset.h"
#include "unicode/udat.h"
#include "cmemory.h"
#include "uassert.h"
#include "ucln_in.h"
#include "umutex.h"
#include "smpdtfst.h"
U_NAMESPACE_BEGIN
SimpleDateFormatStaticSets *gStaticSets = nullptr;
UInitOnce gSimpleDateFormatStaticSetsInitOnce {};
SimpleDateFormatStaticSets::SimpleDateFormatStaticSets(UErrorCode &status)
: fDateIgnorables(nullptr),
fTimeIgnorables(nullptr),
fOtherIgnorables(nullptr)
{
fDateIgnorables = new UnicodeSet(UNICODE_STRING("[-,./[:whitespace:]]", 20), status);
fTimeIgnorables = new UnicodeSet(UNICODE_STRING("[-.:[:whitespace:]]", 19), status);
fOtherIgnorables = new UnicodeSet(UNICODE_STRING("[:whitespace:]", 14), status);
// Check for null pointers
if (fDateIgnorables == nullptr || fTimeIgnorables == nullptr || fOtherIgnorables == nullptr) {
goto ExitConstrDeleteAll;
}
// Freeze all the sets
fDateIgnorables->freeze();
fTimeIgnorables->freeze();
fOtherIgnorables->freeze();
return; // If we reached this point, everything is fine so just exit
ExitConstrDeleteAll: // Remove all sets and return error
delete fDateIgnorables; fDateIgnorables = nullptr;
delete fTimeIgnorables; fTimeIgnorables = nullptr;
delete fOtherIgnorables; fOtherIgnorables = nullptr;
status = U_MEMORY_ALLOCATION_ERROR;
}
SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {
delete fDateIgnorables; fDateIgnorables = nullptr;
delete fTimeIgnorables; fTimeIgnorables = nullptr;
delete fOtherIgnorables; fOtherIgnorables = nullptr;
}
//------------------------------------------------------------------------------
//
// smpdtfmt_cleanup Memory cleanup function, free/delete all
// cached memory. Called by ICU's u_cleanup() function.
//
//------------------------------------------------------------------------------
UBool
SimpleDateFormatStaticSets::cleanup()
{
delete gStaticSets;
gStaticSets = nullptr;
gSimpleDateFormatStaticSetsInitOnce.reset();
return true;
}
U_CDECL_BEGIN
static UBool U_CALLCONV
smpdtfmt_cleanup()
{
return SimpleDateFormatStaticSets::cleanup();
}
static void U_CALLCONV smpdtfmt_initSets(UErrorCode &status) {
ucln_i18n_registerCleanup(UCLN_I18N_SMPDTFMT, smpdtfmt_cleanup);
U_ASSERT(gStaticSets == nullptr);
gStaticSets = new SimpleDateFormatStaticSets(status);
if (gStaticSets == nullptr) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
}
U_CDECL_END
UnicodeSet *SimpleDateFormatStaticSets::getIgnorables(UDateFormatField fieldIndex)
{
UErrorCode status = U_ZERO_ERROR;
umtx_initOnce(gSimpleDateFormatStaticSetsInitOnce, &smpdtfmt_initSets, status);
if (U_FAILURE(status)) {
return nullptr;
}
switch (fieldIndex) {
case UDAT_YEAR_FIELD:
case UDAT_MONTH_FIELD:
case UDAT_DATE_FIELD:
case UDAT_STANDALONE_DAY_FIELD:
case UDAT_STANDALONE_MONTH_FIELD:
return gStaticSets->fDateIgnorables;
case UDAT_HOUR_OF_DAY1_FIELD:
case UDAT_HOUR_OF_DAY0_FIELD:
case UDAT_MINUTE_FIELD:
case UDAT_SECOND_FIELD:
case UDAT_HOUR1_FIELD:
case UDAT_HOUR0_FIELD:
return gStaticSets->fTimeIgnorables;
default:
return gStaticSets->fOtherIgnorables;
}
}
U_NAMESPACE_END
#endif // #if !UCONFIG_NO_FORMATTING
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