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Commit	Line	Data
	1	/*
	2	*******************************************************************************
	3	* Copyright (C) 2009-2013, International Business Machines Corporation and *
	4	* others. All Rights Reserved. *
	5	*******************************************************************************
	6	*
	7	* This file contains the class SimpleDateFormatStaticSets
	8	*
	9	* SimpleDateFormatStaticSets holds the UnicodeSets that are needed for lenient
	10	* parsing of literal characters in date/time strings.
	11	********************************************************************************
	12	*/
	13
	14	#include "unicode/utypes.h"
	15
	16	#if !UCONFIG_NO_FORMATTING
	17
	18	#include "unicode/uniset.h"
	19	#include "unicode/udat.h"
	20	#include "cmemory.h"
	21	#include "uassert.h"
	22	#include "ucln_in.h"
	23	#include "umutex.h"
	24
	25
	26	#include "smpdtfst.h"
	27
	28	U_NAMESPACE_BEGIN
	29
	30	SimpleDateFormatStaticSets *gStaticSets = NULL;
	31	UInitOnce gSimpleDateFormatStaticSetsInitOnce = U_INITONCE_INITIALIZER;
	32
	33	SimpleDateFormatStaticSets::SimpleDateFormatStaticSets(UErrorCode &status)
	34	: fDateIgnorables(NULL),
	35	fTimeIgnorables(NULL),
	36	fOtherIgnorables(NULL)
	37	{
	38	fDateIgnorables = new UnicodeSet(UNICODE_STRING("[-,./[:whitespace:]]", 20), status);
	39	fTimeIgnorables = new UnicodeSet(UNICODE_STRING("[-.:[:whitespace:]]", 19), status);
	40	fOtherIgnorables = new UnicodeSet(UNICODE_STRING("[:whitespace:]", 14), status);
	41
	42	// Check for null pointers
	43	if (fDateIgnorables == NULL \|\| fTimeIgnorables == NULL \|\| fOtherIgnorables == NULL) {
	44	goto ExitConstrDeleteAll;
	45	}
	46
	47	// Freeze all the sets
	48	fDateIgnorables->freeze();
	49	fTimeIgnorables->freeze();
	50	fOtherIgnorables->freeze();
	51
	52	return; // If we reached this point, everything is fine so just exit
	53
	54	ExitConstrDeleteAll: // Remove all sets and return error
	55	delete fDateIgnorables; fDateIgnorables = NULL;
	56	delete fTimeIgnorables; fTimeIgnorables = NULL;
	57	delete fOtherIgnorables; fOtherIgnorables = NULL;
	58
	59	status = U_MEMORY_ALLOCATION_ERROR;
	60	}
	61
	62
	63	SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {
	64	delete fDateIgnorables; fDateIgnorables = NULL;
	65	delete fTimeIgnorables; fTimeIgnorables = NULL;
	66	delete fOtherIgnorables; fOtherIgnorables = NULL;
	67	}
	68
	69
	70	//------------------------------------------------------------------------------
	71	//
	72	// smpdtfmt_cleanup Memory cleanup function, free/delete all
	73	// cached memory. Called by ICU's u_cleanup() function.
	74	//
	75	//------------------------------------------------------------------------------
	76	UBool
	77	SimpleDateFormatStaticSets::cleanup(void)
	78	{
	79	delete gStaticSets;
	80	gStaticSets = NULL;
	81	gSimpleDateFormatStaticSetsInitOnce.reset();
	82	return TRUE;
	83	}
	84
	85	U_CDECL_BEGIN
	86	static UBool U_CALLCONV
	87	smpdtfmt_cleanup(void)
	88	{
	89	return SimpleDateFormatStaticSets::cleanup();
	90	}
	91
	92	static void U_CALLCONV smpdtfmt_initSets(UErrorCode &status) {
	93	ucln_i18n_registerCleanup(UCLN_I18N_SMPDTFMT, smpdtfmt_cleanup);
	94	U_ASSERT(gStaticSets == NULL);
	95	gStaticSets = new SimpleDateFormatStaticSets(status);
	96	if (gStaticSets == NULL) {
	97	status = U_MEMORY_ALLOCATION_ERROR;
	98	return;
	99	}
	100	}
	101
	102	U_CDECL_END
	103
	104	UnicodeSet *SimpleDateFormatStaticSets::getIgnorables(UDateFormatField fieldIndex)
	105	{
	106	UErrorCode status = U_ZERO_ERROR;
	107	umtx_initOnce(gSimpleDateFormatStaticSetsInitOnce, &smpdtfmt_initSets, status);
	108	if (U_FAILURE(status)) {
	109	return NULL;
	110	}
	111
	112	switch (fieldIndex) {
	113	case UDAT_YEAR_FIELD:
	114	case UDAT_MONTH_FIELD:
	115	case UDAT_DATE_FIELD:
	116	case UDAT_STANDALONE_DAY_FIELD:
	117	case UDAT_STANDALONE_MONTH_FIELD:
	118	return gStaticSets->fDateIgnorables;
	119
	120	case UDAT_HOUR_OF_DAY1_FIELD:
	121	case UDAT_HOUR_OF_DAY0_FIELD:
	122	case UDAT_MINUTE_FIELD:
	123	case UDAT_SECOND_FIELD:
	124	case UDAT_HOUR1_FIELD:
	125	case UDAT_HOUR0_FIELD:
	126	return gStaticSets->fTimeIgnorables;
	127
	128	default:
	129	return gStaticSets->fOtherIgnorables;
	130	}
	131	}
	132
	133	U_NAMESPACE_END
	134
	135	#endif // #if !UCONFIG_NO_FORMATTING