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intl/icu/source/i18n/smpdtfst.cpp@b8a032363ba2 (annotated)

intl/icu/source/i18n/smpdtfst.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	/*
michael@0	2	*******************************************************************************
michael@0	3	* Copyright (C) 2009-2013, International Business Machines Corporation and *
michael@0	4	* others. All Rights Reserved. *
michael@0	5	*******************************************************************************
michael@0	6	*
michael@0	7	* This file contains the class SimpleDateFormatStaticSets
michael@0	8	*
michael@0	9	* SimpleDateFormatStaticSets holds the UnicodeSets that are needed for lenient
michael@0	10	* parsing of literal characters in date/time strings.
michael@0	11	********************************************************************************
michael@0	12	*/
michael@0	13
michael@0	14	#include "unicode/utypes.h"
michael@0	15
michael@0	16	#if !UCONFIG_NO_FORMATTING
michael@0	17
michael@0	18	#include "unicode/uniset.h"
michael@0	19	#include "unicode/udat.h"
michael@0	20	#include "cmemory.h"
michael@0	21	#include "uassert.h"
michael@0	22	#include "ucln_in.h"
michael@0	23	#include "umutex.h"
michael@0	24
michael@0	25
michael@0	26	#include "smpdtfst.h"
michael@0	27
michael@0	28	U_NAMESPACE_BEGIN
michael@0	29
michael@0	30	SimpleDateFormatStaticSets *gStaticSets = NULL;
michael@0	31	UInitOnce gSimpleDateFormatStaticSetsInitOnce = U_INITONCE_INITIALIZER;
michael@0	32
michael@0	33	SimpleDateFormatStaticSets::SimpleDateFormatStaticSets(UErrorCode &status)
michael@0	34	: fDateIgnorables(NULL),
michael@0	35	fTimeIgnorables(NULL),
michael@0	36	fOtherIgnorables(NULL)
michael@0	37	{
michael@0	38	fDateIgnorables = new UnicodeSet(UNICODE_STRING("[-,./[:whitespace:]]", 20), status);
michael@0	39	fTimeIgnorables = new UnicodeSet(UNICODE_STRING("[-.:[:whitespace:]]", 19), status);
michael@0	40	fOtherIgnorables = new UnicodeSet(UNICODE_STRING("[:whitespace:]", 14), status);
michael@0	41
michael@0	42	// Check for null pointers
michael@0	43	if (fDateIgnorables == NULL || fTimeIgnorables == NULL || fOtherIgnorables == NULL) {
michael@0	44	goto ExitConstrDeleteAll;
michael@0	45	}
michael@0	46
michael@0	47	// Freeze all the sets
michael@0	48	fDateIgnorables->freeze();
michael@0	49	fTimeIgnorables->freeze();
michael@0	50	fOtherIgnorables->freeze();
michael@0	51
michael@0	52	return; // If we reached this point, everything is fine so just exit
michael@0	53
michael@0	54	ExitConstrDeleteAll: // Remove all sets and return error
michael@0	55	delete fDateIgnorables; fDateIgnorables = NULL;
michael@0	56	delete fTimeIgnorables; fTimeIgnorables = NULL;
michael@0	57	delete fOtherIgnorables; fOtherIgnorables = NULL;
michael@0	58
michael@0	59	status = U_MEMORY_ALLOCATION_ERROR;
michael@0	60	}
michael@0	61
michael@0	62
michael@0	63	SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {
michael@0	64	delete fDateIgnorables; fDateIgnorables = NULL;
michael@0	65	delete fTimeIgnorables; fTimeIgnorables = NULL;
michael@0	66	delete fOtherIgnorables; fOtherIgnorables = NULL;
michael@0	67	}
michael@0	68
michael@0	69
michael@0	70	//------------------------------------------------------------------------------
michael@0	71	//
michael@0	72	// smpdtfmt_cleanup Memory cleanup function, free/delete all
michael@0	73	// cached memory. Called by ICU's u_cleanup() function.
michael@0	74	//
michael@0	75	//------------------------------------------------------------------------------
michael@0	76	UBool
michael@0	77	SimpleDateFormatStaticSets::cleanup(void)
michael@0	78	{
michael@0	79	delete gStaticSets;
michael@0	80	gStaticSets = NULL;
michael@0	81	gSimpleDateFormatStaticSetsInitOnce.reset();
michael@0	82	return TRUE;
michael@0	83	}
michael@0	84
michael@0	85	U_CDECL_BEGIN
michael@0	86	static UBool U_CALLCONV
michael@0	87	smpdtfmt_cleanup(void)
michael@0	88	{
michael@0	89	return SimpleDateFormatStaticSets::cleanup();
michael@0	90	}
michael@0	91
michael@0	92	static void U_CALLCONV smpdtfmt_initSets(UErrorCode &status) {
michael@0	93	ucln_i18n_registerCleanup(UCLN_I18N_SMPDTFMT, smpdtfmt_cleanup);
michael@0	94	U_ASSERT(gStaticSets == NULL);
michael@0	95	gStaticSets = new SimpleDateFormatStaticSets(status);
michael@0	96	if (gStaticSets == NULL) {
michael@0	97	status = U_MEMORY_ALLOCATION_ERROR;
michael@0	98	return;
michael@0	99	}
michael@0	100	}
michael@0	101
michael@0	102	U_CDECL_END
michael@0	103
michael@0	104	UnicodeSet *SimpleDateFormatStaticSets::getIgnorables(UDateFormatField fieldIndex)
michael@0	105	{
michael@0	106	UErrorCode status = U_ZERO_ERROR;
michael@0	107	umtx_initOnce(gSimpleDateFormatStaticSetsInitOnce, &smpdtfmt_initSets, status);
michael@0	108	if (U_FAILURE(status)) {
michael@0	109	return NULL;
michael@0	110	}
michael@0	111
michael@0	112	switch (fieldIndex) {
michael@0	113	case UDAT_YEAR_FIELD:
michael@0	114	case UDAT_MONTH_FIELD:
michael@0	115	case UDAT_DATE_FIELD:
michael@0	116	case UDAT_STANDALONE_DAY_FIELD:
michael@0	117	case UDAT_STANDALONE_MONTH_FIELD:
michael@0	118	return gStaticSets->fDateIgnorables;
michael@0	119
michael@0	120	case UDAT_HOUR_OF_DAY1_FIELD:
michael@0	121	case UDAT_HOUR_OF_DAY0_FIELD:
michael@0	122	case UDAT_MINUTE_FIELD:
michael@0	123	case UDAT_SECOND_FIELD:
michael@0	124	case UDAT_HOUR1_FIELD:
michael@0	125	case UDAT_HOUR0_FIELD:
michael@0	126	return gStaticSets->fTimeIgnorables;
michael@0	127
michael@0	128	default:
michael@0	129	return gStaticSets->fOtherIgnorables;
michael@0	130	}
michael@0	131	}
michael@0	132
michael@0	133	U_NAMESPACE_END
michael@0	134
michael@0	135	#endif // #if !UCONFIG_NO_FORMATTING