The Tor Browser: intl/icu/source/common/uscript.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2 **********************************************************************

     3 *   Copyright (C) 1997-2011, International Business Machines

     4 *   Corporation and others.  All Rights Reserved.

     5 **********************************************************************

6 *

     7 * File USCRIPT.C

8 *

     9 * Modification History:

    10 *

    11 *   Date        Name        Description

    12 *   07/06/2001    Ram         Creation.

    13 ******************************************************************************

    14 */

    16 #include "unicode/uscript.h"

    17 #include "unicode/ures.h"

    18 #include "unicode/uchar.h"

    19 #include "unicode/putil.h"

    20 #include "uprops.h"

    21 #include "cmemory.h"

    22 #include "cstring.h"

    24 static const char kLocaleScript[] = "LocaleScript";

    26 /* TODO: this is a bad API should be deprecated */

    27 U_CAPI int32_t  U_EXPORT2

    28 uscript_getCode(const char* nameOrAbbrOrLocale,

    29                 UScriptCode* fillIn,

    30                 int32_t capacity,

    31                 UErrorCode* err){

    33     UScriptCode code = USCRIPT_INVALID_CODE;

    34     int32_t numFilled=0;

    35     int32_t len=0;

    36     /* check arguments */

    37     if(err==NULL ||U_FAILURE(*err)){

    38         return numFilled;

    39     }

    40     if(nameOrAbbrOrLocale==NULL || fillIn == NULL || capacity<0){

    41         *err = U_ILLEGAL_ARGUMENT_ERROR;

    42         return numFilled;

    43     }

    45     if(uprv_strchr(nameOrAbbrOrLocale, '-')==NULL && uprv_strchr(nameOrAbbrOrLocale, '_')==NULL ){

    46         /* try long and abbreviated script names first */

    47         code = (UScriptCode) u_getPropertyValueEnum(UCHAR_SCRIPT, nameOrAbbrOrLocale);

    49     }

    50     if(code==(UScriptCode)UCHAR_INVALID_CODE){

    51        /* Do not propagate error codes from just not finding a locale bundle. */

    52         UErrorCode localErrorCode = U_ZERO_ERROR;

    53         UResourceBundle* resB = ures_open(NULL,nameOrAbbrOrLocale,&localErrorCode);

    54         if(U_SUCCESS(localErrorCode)&& localErrorCode != U_USING_DEFAULT_WARNING){

    55             UResourceBundle* resD = ures_getByKey(resB,kLocaleScript,NULL,&localErrorCode);

    56             if(U_SUCCESS(localErrorCode) ){

    57                 len =0;

    58                 while(ures_hasNext(resD)){

    59                     const UChar* name = ures_getNextString(resD,&len,NULL,&localErrorCode);

    60                     if(U_SUCCESS(localErrorCode)){

    61                         char cName[50] = {'\0'};

    62                         u_UCharsToChars(name,cName,len);

    63                         code = (UScriptCode) u_getPropertyValueEnum(UCHAR_SCRIPT, cName);

    64                         /* got the script code now fill in the buffer */

    65                         if(numFilled<capacity){

    66                             *(fillIn)++=code;

    67                             numFilled++;

    68                         }else{

    69                             ures_close(resD);

    70                             ures_close(resB);

    71                             *err=U_BUFFER_OVERFLOW_ERROR;

    72                             return len;

    73                         }

    74                     }

    75                 }

    76             }

    77             ures_close(resD);

    78         }

    79         ures_close(resB);

    80         code = USCRIPT_INVALID_CODE;

    81     }

    82     if(code==(UScriptCode)UCHAR_INVALID_CODE){

    83        /* still not found .. try long and abbreviated script names again */

    84         code = (UScriptCode) u_getPropertyValueEnum(UCHAR_SCRIPT, nameOrAbbrOrLocale);

    85     }

    86     if(code!=(UScriptCode)UCHAR_INVALID_CODE){

    87         /* we found it */

    88         if(numFilled<capacity){

    89             *(fillIn)++=code;

    90             numFilled++;

    91         }else{

    92             *err=U_BUFFER_OVERFLOW_ERROR;

    93             return len;

    94         }

    95     }

    96     return numFilled;

    97 }

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