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/*
*******************************************************************************
* Copyright (C) 2009-2011, 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 "ucln_in.h"
#include "umutex.h"
#include "smpdtfst.h"
U_NAMESPACE_BEGIN
SimpleDateFormatStaticSets *SimpleDateFormatStaticSets::gStaticSets = NULL;
SimpleDateFormatStaticSets::SimpleDateFormatStaticSets(UErrorCode *status)
: fDateIgnorables(NULL),
fTimeIgnorables(NULL),
fOtherIgnorables(NULL)
{
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 == NULL || fTimeIgnorables == NULL || fOtherIgnorables == NULL) {
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 = NULL;
delete fTimeIgnorables; fTimeIgnorables = NULL;
delete fOtherIgnorables; fOtherIgnorables = NULL;
*status = U_MEMORY_ALLOCATION_ERROR;
}
SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {
delete fDateIgnorables; fDateIgnorables = NULL;
delete fTimeIgnorables; fTimeIgnorables = NULL;
delete fOtherIgnorables; fOtherIgnorables = NULL;
}
//------------------------------------------------------------------------------
//
// smpdtfmt_cleanup Memory cleanup function, free/delete all
// cached memory. Called by ICU's u_cleanup() function.
//
//------------------------------------------------------------------------------
UBool
SimpleDateFormatStaticSets::cleanup(void)
{
delete SimpleDateFormatStaticSets::gStaticSets;
SimpleDateFormatStaticSets::gStaticSets = NULL;
return TRUE;
}
U_CDECL_BEGIN
static UBool U_CALLCONV
smpdtfmt_cleanup(void)
{
return SimpleDateFormatStaticSets::cleanup();
}
U_CDECL_END
void SimpleDateFormatStaticSets::initSets(UErrorCode *status)
{
SimpleDateFormatStaticSets *p;
UMTX_CHECK(NULL, gStaticSets, p);
if (p == NULL) {
p = new SimpleDateFormatStaticSets(status);
if (p == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return;
}
if (U_FAILURE(*status)) {
delete p;
return;
}
umtx_lock(NULL);
if (gStaticSets == NULL) {
gStaticSets = p;
p = NULL;
}
umtx_unlock(NULL);
if (p != NULL) {
delete p;
}
ucln_i18n_registerCleanup(UCLN_I18N_SMPDTFMT, smpdtfmt_cleanup);
}
}
UnicodeSet *SimpleDateFormatStaticSets::getIgnorables(UDateFormatField fieldIndex)
{
UErrorCode status = U_ZERO_ERROR;
initSets(&status);
if (U_FAILURE(status)) {
return NULL;
}
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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