159 lines
4.3 KiB
C++
159 lines
4.3 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 2009-2011, 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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* This file contains the class SimpleDateFormatStaticSets
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*
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* SimpleDateFormatStaticSets holds the UnicodeSets that are needed for lenient
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* parsing of literal characters in date/time strings.
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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/uniset.h"
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#include "unicode/udat.h"
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#include "cmemory.h"
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#include "ucln_in.h"
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#include "umutex.h"
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#include "smpdtfst.h"
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U_NAMESPACE_BEGIN
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SimpleDateFormatStaticSets *SimpleDateFormatStaticSets::gStaticSets = NULL;
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SimpleDateFormatStaticSets::SimpleDateFormatStaticSets(UErrorCode *status)
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: fDateIgnorables(NULL),
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fTimeIgnorables(NULL),
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fOtherIgnorables(NULL)
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{
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fDateIgnorables = new UnicodeSet(UNICODE_STRING("[-,./[:whitespace:]]", 20), *status);
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fTimeIgnorables = new UnicodeSet(UNICODE_STRING("[-.:[:whitespace:]]", 19), *status);
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fOtherIgnorables = new UnicodeSet(UNICODE_STRING("[:whitespace:]", 14), *status);
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// Check for null pointers
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if (fDateIgnorables == NULL || fTimeIgnorables == NULL || fOtherIgnorables == NULL) {
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goto ExitConstrDeleteAll;
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}
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// Freeze all the sets
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fDateIgnorables->freeze();
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fTimeIgnorables->freeze();
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fOtherIgnorables->freeze();
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return; // If we reached this point, everything is fine so just exit
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ExitConstrDeleteAll: // Remove all sets and return error
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delete fDateIgnorables; fDateIgnorables = NULL;
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delete fTimeIgnorables; fTimeIgnorables = NULL;
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delete fOtherIgnorables; fOtherIgnorables = NULL;
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*status = U_MEMORY_ALLOCATION_ERROR;
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}
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SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {
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delete fDateIgnorables; fDateIgnorables = NULL;
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delete fTimeIgnorables; fTimeIgnorables = NULL;
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delete fOtherIgnorables; fOtherIgnorables = NULL;
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}
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//------------------------------------------------------------------------------
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//
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// smpdtfmt_cleanup Memory cleanup function, free/delete all
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// cached memory. Called by ICU's u_cleanup() function.
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//
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//------------------------------------------------------------------------------
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UBool
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SimpleDateFormatStaticSets::cleanup(void)
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{
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delete SimpleDateFormatStaticSets::gStaticSets;
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SimpleDateFormatStaticSets::gStaticSets = NULL;
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return TRUE;
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}
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U_CDECL_BEGIN
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static UBool U_CALLCONV
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smpdtfmt_cleanup(void)
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{
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return SimpleDateFormatStaticSets::cleanup();
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}
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U_CDECL_END
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void SimpleDateFormatStaticSets::initSets(UErrorCode *status)
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{
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SimpleDateFormatStaticSets *p;
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UMTX_CHECK(NULL, gStaticSets, p);
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if (p == NULL) {
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p = new SimpleDateFormatStaticSets(status);
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if (p == NULL) {
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*status = U_MEMORY_ALLOCATION_ERROR;
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return;
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}
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if (U_FAILURE(*status)) {
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delete p;
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return;
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}
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umtx_lock(NULL);
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if (gStaticSets == NULL) {
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gStaticSets = p;
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p = NULL;
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}
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umtx_unlock(NULL);
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if (p != NULL) {
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delete p;
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}
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ucln_i18n_registerCleanup(UCLN_I18N_SMPDTFMT, smpdtfmt_cleanup);
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}
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}
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UnicodeSet *SimpleDateFormatStaticSets::getIgnorables(UDateFormatField fieldIndex)
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{
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UErrorCode status = U_ZERO_ERROR;
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initSets(&status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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switch (fieldIndex) {
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case UDAT_YEAR_FIELD:
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case UDAT_MONTH_FIELD:
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case UDAT_DATE_FIELD:
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case UDAT_STANDALONE_DAY_FIELD:
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case UDAT_STANDALONE_MONTH_FIELD:
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return gStaticSets->fDateIgnorables;
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case UDAT_HOUR_OF_DAY1_FIELD:
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case UDAT_HOUR_OF_DAY0_FIELD:
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case UDAT_MINUTE_FIELD:
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case UDAT_SECOND_FIELD:
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case UDAT_HOUR1_FIELD:
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case UDAT_HOUR0_FIELD:
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return gStaticSets->fTimeIgnorables;
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default:
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return gStaticSets->fOtherIgnorables;
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}
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}
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U_NAMESPACE_END
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#endif // #if !UCONFIG_NO_FORMATTING
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