The Tor Browser: intl/icu/source/i18n/smpdtfst.cpp@b8a032363ba2

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

     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 */

    14 #include "unicode/utypes.h"

    16 #if !UCONFIG_NO_FORMATTING

    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"

    26 #include "smpdtfst.h"

    28 U_NAMESPACE_BEGIN

    30 SimpleDateFormatStaticSets *gStaticSets = NULL;

    31 UInitOnce gSimpleDateFormatStaticSetsInitOnce = U_INITONCE_INITIALIZER;

    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);

    42     // Check for null pointers

    43     if (fDateIgnorables == NULL || fTimeIgnorables == NULL || fOtherIgnorables == NULL) {

    44         goto ExitConstrDeleteAll;

    45     }

    47     // Freeze all the sets

    48     fDateIgnorables->freeze();

    49     fTimeIgnorables->freeze();

    50     fOtherIgnorables->freeze();

    52     return; // If we reached this point, everything is fine so just exit

    54 ExitConstrDeleteAll: // Remove all sets and return error

    55     delete fDateIgnorables;  fDateIgnorables = NULL;

    56     delete fTimeIgnorables;  fTimeIgnorables = NULL;

    57     delete fOtherIgnorables; fOtherIgnorables = NULL;

    59     status = U_MEMORY_ALLOCATION_ERROR;

    60 }

    63 SimpleDateFormatStaticSets::~SimpleDateFormatStaticSets() {

    64     delete fDateIgnorables;  fDateIgnorables = NULL;

    65     delete fTimeIgnorables;  fTimeIgnorables = NULL;

    66     delete fOtherIgnorables; fOtherIgnorables = NULL;

    67 }

    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 }

    85 U_CDECL_BEGIN

    86 static UBool U_CALLCONV

    87 smpdtfmt_cleanup(void)

    88 {

    89     return SimpleDateFormatStaticSets::cleanup();

    90 }

    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 }

   102 U_CDECL_END

   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     }

   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;

   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;

   128         default:

   129             return gStaticSets->fOtherIgnorables;

   130     }

   131 }

   133 U_NAMESPACE_END

   135 #endif // #if !UCONFIG_NO_FORMATTING

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