intl/icu/source/common/uresdata.c

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/intl/icu/source/common/uresdata.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,1147 @@
     1.4 +/*
     1.5 +*******************************************************************************
     1.6 +*                                                                             *
     1.7 +* Copyright (C) 1999-2012, International Business Machines Corporation        *
     1.8 +*               and others. All Rights Reserved.                              *
     1.9 +*                                                                             *
    1.10 +*******************************************************************************
    1.11 +*   file name:  uresdata.c
    1.12 +*   encoding:   US-ASCII
    1.13 +*   tab size:   8 (not used)
    1.14 +*   indentation:4
    1.15 +*
    1.16 +*   created on: 1999dec08
    1.17 +*   created by: Markus W. Scherer
    1.18 +* Modification History:
    1.19 +*
    1.20 +*   Date        Name        Description
    1.21 +*   06/20/2000  helena      OS/400 port changes; mostly typecast.
    1.22 +*   06/24/02    weiv        Added support for resource sharing
    1.23 +*/
    1.24 +
    1.25 +#include "unicode/utypes.h"
    1.26 +#include "unicode/udata.h"
    1.27 +#include "unicode/ustring.h"
    1.28 +#include "unicode/utf16.h"
    1.29 +#include "cmemory.h"
    1.30 +#include "cstring.h"
    1.31 +#include "uarrsort.h"
    1.32 +#include "udataswp.h"
    1.33 +#include "ucol_swp.h"
    1.34 +#include "uinvchar.h"
    1.35 +#include "uresdata.h"
    1.36 +#include "uresimp.h"
    1.37 +#include "uassert.h"
    1.38 +
    1.39 +#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
    1.40 +
    1.41 +/*
    1.42 + * Resource access helpers
    1.43 + */
    1.44 +
    1.45 +/* get a const char* pointer to the key with the keyOffset byte offset from pRoot */
    1.46 +#define RES_GET_KEY16(pResData, keyOffset) \
    1.47 +    ((keyOffset)<(pResData)->localKeyLimit ? \
    1.48 +        (const char *)(pResData)->pRoot+(keyOffset) : \
    1.49 +        (pResData)->poolBundleKeys+(keyOffset)-(pResData)->localKeyLimit)
    1.50 +
    1.51 +#define RES_GET_KEY32(pResData, keyOffset) \
    1.52 +    ((keyOffset)>=0 ? \
    1.53 +        (const char *)(pResData)->pRoot+(keyOffset) : \
    1.54 +        (pResData)->poolBundleKeys+((keyOffset)&0x7fffffff))
    1.55 +
    1.56 +#define URESDATA_ITEM_NOT_FOUND -1
    1.57 +
    1.58 +/* empty resources, returned when the resource offset is 0 */
    1.59 +static const uint16_t gEmpty16=0;
    1.60 +
    1.61 +static const struct {
    1.62 +    int32_t length;
    1.63 +    int32_t res;
    1.64 +} gEmpty32={ 0, 0 };
    1.65 +
    1.66 +static const struct {
    1.67 +    int32_t length;
    1.68 +    UChar nul;
    1.69 +    UChar pad;
    1.70 +} gEmptyString={ 0, 0, 0 };
    1.71 +
    1.72 +/*
    1.73 + * All the type-access functions assume that
    1.74 + * the resource is of the expected type.
    1.75 + */
    1.76 +
    1.77 +static int32_t
    1.78 +_res_findTableItem(const ResourceData *pResData, const uint16_t *keyOffsets, int32_t length,
    1.79 +                   const char *key, const char **realKey) {
    1.80 +    const char *tableKey;
    1.81 +    int32_t mid, start, limit;
    1.82 +    int result;
    1.83 +
    1.84 +    /* do a binary search for the key */
    1.85 +    start=0;
    1.86 +    limit=length;
    1.87 +    while(start<limit) {
    1.88 +        mid = (start + limit) / 2;
    1.89 +        tableKey = RES_GET_KEY16(pResData, keyOffsets[mid]);
    1.90 +        if (pResData->useNativeStrcmp) {
    1.91 +            result = uprv_strcmp(key, tableKey);
    1.92 +        } else {
    1.93 +            result = uprv_compareInvCharsAsAscii(key, tableKey);
    1.94 +        }
    1.95 +        if (result < 0) {
    1.96 +            limit = mid;
    1.97 +        } else if (result > 0) {
    1.98 +            start = mid + 1;
    1.99 +        } else {
   1.100 +            /* We found it! */
   1.101 +            *realKey=tableKey;
   1.102 +            return mid;
   1.103 +        }
   1.104 +    }
   1.105 +    return URESDATA_ITEM_NOT_FOUND;  /* not found or table is empty. */
   1.106 +}
   1.107 +
   1.108 +static int32_t
   1.109 +_res_findTable32Item(const ResourceData *pResData, const int32_t *keyOffsets, int32_t length,
   1.110 +                     const char *key, const char **realKey) {
   1.111 +    const char *tableKey;
   1.112 +    int32_t mid, start, limit;
   1.113 +    int result;
   1.114 +
   1.115 +    /* do a binary search for the key */
   1.116 +    start=0;
   1.117 +    limit=length;
   1.118 +    while(start<limit) {
   1.119 +        mid = (start + limit) / 2;
   1.120 +        tableKey = RES_GET_KEY32(pResData, keyOffsets[mid]);
   1.121 +        if (pResData->useNativeStrcmp) {
   1.122 +            result = uprv_strcmp(key, tableKey);
   1.123 +        } else {
   1.124 +            result = uprv_compareInvCharsAsAscii(key, tableKey);
   1.125 +        }
   1.126 +        if (result < 0) {
   1.127 +            limit = mid;
   1.128 +        } else if (result > 0) {
   1.129 +            start = mid + 1;
   1.130 +        } else {
   1.131 +            /* We found it! */
   1.132 +            *realKey=tableKey;
   1.133 +            return mid;
   1.134 +        }
   1.135 +    }
   1.136 +    return URESDATA_ITEM_NOT_FOUND;  /* not found or table is empty. */
   1.137 +}
   1.138 +
   1.139 +/* helper for res_load() ---------------------------------------------------- */
   1.140 +
   1.141 +static UBool U_CALLCONV
   1.142 +isAcceptable(void *context,
   1.143 +             const char *type, const char *name,
   1.144 +             const UDataInfo *pInfo) {
   1.145 +    uprv_memcpy(context, pInfo->formatVersion, 4);
   1.146 +    return (UBool)(
   1.147 +        pInfo->size>=20 &&
   1.148 +        pInfo->isBigEndian==U_IS_BIG_ENDIAN &&
   1.149 +        pInfo->charsetFamily==U_CHARSET_FAMILY &&
   1.150 +        pInfo->sizeofUChar==U_SIZEOF_UCHAR &&
   1.151 +        pInfo->dataFormat[0]==0x52 &&   /* dataFormat="ResB" */
   1.152 +        pInfo->dataFormat[1]==0x65 &&
   1.153 +        pInfo->dataFormat[2]==0x73 &&
   1.154 +        pInfo->dataFormat[3]==0x42 &&
   1.155 +        (pInfo->formatVersion[0]==1 || pInfo->formatVersion[0]==2));
   1.156 +}
   1.157 +
   1.158 +/* semi-public functions ---------------------------------------------------- */
   1.159 +
   1.160 +static void
   1.161 +res_init(ResourceData *pResData,
   1.162 +         UVersionInfo formatVersion, const void *inBytes, int32_t length,
   1.163 +         UErrorCode *errorCode) {
   1.164 +    UResType rootType;
   1.165 +
   1.166 +    /* get the root resource */
   1.167 +    pResData->pRoot=(const int32_t *)inBytes;
   1.168 +    pResData->rootRes=(Resource)*pResData->pRoot;
   1.169 +    pResData->p16BitUnits=&gEmpty16;
   1.170 +
   1.171 +    /* formatVersion 1.1 must have a root item and at least 5 indexes */
   1.172 +    if(length>=0 && (length/4)<((formatVersion[0]==1 && formatVersion[1]==0) ? 1 : 1+5)) {
   1.173 +        *errorCode=U_INVALID_FORMAT_ERROR;
   1.174 +        res_unload(pResData);
   1.175 +        return;
   1.176 +    }
   1.177 +
   1.178 +    /* currently, we accept only resources that have a Table as their roots */
   1.179 +    rootType=(UResType)RES_GET_TYPE(pResData->rootRes);
   1.180 +    if(!URES_IS_TABLE(rootType)) {
   1.181 +        *errorCode=U_INVALID_FORMAT_ERROR;
   1.182 +        res_unload(pResData);
   1.183 +        return;
   1.184 +    }
   1.185 +
   1.186 +    if(formatVersion[0]==1 && formatVersion[1]==0) {
   1.187 +        pResData->localKeyLimit=0x10000;  /* greater than any 16-bit key string offset */
   1.188 +    } else {
   1.189 +        /* bundles with formatVersion 1.1 and later contain an indexes[] array */
   1.190 +        const int32_t *indexes=pResData->pRoot+1;
   1.191 +        int32_t indexLength=indexes[URES_INDEX_LENGTH]&0xff;
   1.192 +        if(indexLength<=URES_INDEX_MAX_TABLE_LENGTH) {
   1.193 +            *errorCode=U_INVALID_FORMAT_ERROR;
   1.194 +            res_unload(pResData);
   1.195 +            return;
   1.196 +        }
   1.197 +        if( length>=0 &&
   1.198 +            (length<((1+indexLength)<<2) ||
   1.199 +             length<(indexes[URES_INDEX_BUNDLE_TOP]<<2))
   1.200 +        ) {
   1.201 +            *errorCode=U_INVALID_FORMAT_ERROR;
   1.202 +            res_unload(pResData);
   1.203 +            return;
   1.204 +        }
   1.205 +        if(indexes[URES_INDEX_KEYS_TOP]>(1+indexLength)) {
   1.206 +            pResData->localKeyLimit=indexes[URES_INDEX_KEYS_TOP]<<2;
   1.207 +        }
   1.208 +        if(indexLength>URES_INDEX_ATTRIBUTES) {
   1.209 +            int32_t att=indexes[URES_INDEX_ATTRIBUTES];
   1.210 +            pResData->noFallback=(UBool)(att&URES_ATT_NO_FALLBACK);
   1.211 +            pResData->isPoolBundle=(UBool)((att&URES_ATT_IS_POOL_BUNDLE)!=0);
   1.212 +            pResData->usesPoolBundle=(UBool)((att&URES_ATT_USES_POOL_BUNDLE)!=0);
   1.213 +        }
   1.214 +        if((pResData->isPoolBundle || pResData->usesPoolBundle) && indexLength<=URES_INDEX_POOL_CHECKSUM) {
   1.215 +            *errorCode=U_INVALID_FORMAT_ERROR;
   1.216 +            res_unload(pResData);
   1.217 +            return;
   1.218 +        }
   1.219 +        if( indexLength>URES_INDEX_16BIT_TOP &&
   1.220 +            indexes[URES_INDEX_16BIT_TOP]>indexes[URES_INDEX_KEYS_TOP]
   1.221 +        ) {
   1.222 +            pResData->p16BitUnits=(const uint16_t *)(pResData->pRoot+indexes[URES_INDEX_KEYS_TOP]);
   1.223 +        }
   1.224 +    }
   1.225 +
   1.226 +    if(formatVersion[0]==1 || U_CHARSET_FAMILY==U_ASCII_FAMILY) {
   1.227 +        /*
   1.228 +         * formatVersion 1: compare key strings in native-charset order
   1.229 +         * formatVersion 2 and up: compare key strings in ASCII order
   1.230 +         */
   1.231 +        pResData->useNativeStrcmp=TRUE;
   1.232 +    }
   1.233 +}
   1.234 +
   1.235 +U_CAPI void U_EXPORT2
   1.236 +res_read(ResourceData *pResData,
   1.237 +         const UDataInfo *pInfo, const void *inBytes, int32_t length,
   1.238 +         UErrorCode *errorCode) {
   1.239 +    UVersionInfo formatVersion;
   1.240 +
   1.241 +    uprv_memset(pResData, 0, sizeof(ResourceData));
   1.242 +    if(U_FAILURE(*errorCode)) {
   1.243 +        return;
   1.244 +    }
   1.245 +    if(!isAcceptable(formatVersion, NULL, NULL, pInfo)) {
   1.246 +        *errorCode=U_INVALID_FORMAT_ERROR;
   1.247 +        return;
   1.248 +    }
   1.249 +    res_init(pResData, formatVersion, inBytes, length, errorCode);
   1.250 +}
   1.251 +
   1.252 +U_CFUNC void
   1.253 +res_load(ResourceData *pResData,
   1.254 +         const char *path, const char *name, UErrorCode *errorCode) {
   1.255 +    UVersionInfo formatVersion;
   1.256 +
   1.257 +    uprv_memset(pResData, 0, sizeof(ResourceData));
   1.258 +
   1.259 +    /* load the ResourceBundle file */
   1.260 +    pResData->data=udata_openChoice(path, "res", name, isAcceptable, formatVersion, errorCode);
   1.261 +    if(U_FAILURE(*errorCode)) {
   1.262 +        return;
   1.263 +    }
   1.264 +
   1.265 +    /* get its memory and initialize *pResData */
   1.266 +    res_init(pResData, formatVersion, udata_getMemory(pResData->data), -1, errorCode);
   1.267 +}
   1.268 +
   1.269 +U_CFUNC void
   1.270 +res_unload(ResourceData *pResData) {
   1.271 +    if(pResData->data!=NULL) {
   1.272 +        udata_close(pResData->data);
   1.273 +        pResData->data=NULL;
   1.274 +    }
   1.275 +}
   1.276 +
   1.277 +static const int8_t gPublicTypes[URES_LIMIT] = {
   1.278 +    URES_STRING,
   1.279 +    URES_BINARY,
   1.280 +    URES_TABLE,
   1.281 +    URES_ALIAS,
   1.282 +
   1.283 +    URES_TABLE,     /* URES_TABLE32 */
   1.284 +    URES_TABLE,     /* URES_TABLE16 */
   1.285 +    URES_STRING,    /* URES_STRING_V2 */
   1.286 +    URES_INT,
   1.287 +
   1.288 +    URES_ARRAY,
   1.289 +    URES_ARRAY,     /* URES_ARRAY16 */
   1.290 +    URES_NONE,
   1.291 +    URES_NONE,
   1.292 +
   1.293 +    URES_NONE,
   1.294 +    URES_NONE,
   1.295 +    URES_INT_VECTOR,
   1.296 +    URES_NONE
   1.297 +};
   1.298 +
   1.299 +U_CAPI UResType U_EXPORT2
   1.300 +res_getPublicType(Resource res) {
   1.301 +    return (UResType)gPublicTypes[RES_GET_TYPE(res)];
   1.302 +}
   1.303 +
   1.304 +U_CAPI const UChar * U_EXPORT2
   1.305 +res_getString(const ResourceData *pResData, Resource res, int32_t *pLength) {
   1.306 +    const UChar *p;
   1.307 +    uint32_t offset=RES_GET_OFFSET(res);
   1.308 +    int32_t length;
   1.309 +    if(RES_GET_TYPE(res)==URES_STRING_V2) {
   1.310 +        int32_t first;
   1.311 +        p=(const UChar *)(pResData->p16BitUnits+offset);
   1.312 +        first=*p;
   1.313 +        if(!U16_IS_TRAIL(first)) {
   1.314 +            length=u_strlen(p);
   1.315 +        } else if(first<0xdfef) {
   1.316 +            length=first&0x3ff;
   1.317 +            ++p;
   1.318 +        } else if(first<0xdfff) {
   1.319 +            length=((first-0xdfef)<<16)|p[1];
   1.320 +            p+=2;
   1.321 +        } else {
   1.322 +            length=((int32_t)p[1]<<16)|p[2];
   1.323 +            p+=3;
   1.324 +        }
   1.325 +    } else if(res==offset) /* RES_GET_TYPE(res)==URES_STRING */ {
   1.326 +        const int32_t *p32= res==0 ? &gEmptyString.length : pResData->pRoot+res;
   1.327 +        length=*p32++;
   1.328 +        p=(const UChar *)p32;
   1.329 +    } else {
   1.330 +        p=NULL;
   1.331 +        length=0;
   1.332 +    }
   1.333 +    if(pLength) {
   1.334 +        *pLength=length;
   1.335 +    }
   1.336 +    return p;
   1.337 +}
   1.338 +
   1.339 +U_CAPI const UChar * U_EXPORT2
   1.340 +res_getAlias(const ResourceData *pResData, Resource res, int32_t *pLength) {
   1.341 +    const UChar *p;
   1.342 +    uint32_t offset=RES_GET_OFFSET(res);
   1.343 +    int32_t length;
   1.344 +    if(RES_GET_TYPE(res)==URES_ALIAS) {
   1.345 +        const int32_t *p32= offset==0 ? &gEmptyString.length : pResData->pRoot+offset;
   1.346 +        length=*p32++;
   1.347 +        p=(const UChar *)p32;
   1.348 +    } else {
   1.349 +        p=NULL;
   1.350 +        length=0;
   1.351 +    }
   1.352 +    if(pLength) {
   1.353 +        *pLength=length;
   1.354 +    }
   1.355 +    return p;
   1.356 +}
   1.357 +
   1.358 +U_CAPI const uint8_t * U_EXPORT2
   1.359 +res_getBinary(const ResourceData *pResData, Resource res, int32_t *pLength) {
   1.360 +    const uint8_t *p;
   1.361 +    uint32_t offset=RES_GET_OFFSET(res);
   1.362 +    int32_t length;
   1.363 +    if(RES_GET_TYPE(res)==URES_BINARY) {
   1.364 +        const int32_t *p32= offset==0 ? (const int32_t*)&gEmpty32 : pResData->pRoot+offset;
   1.365 +        length=*p32++;
   1.366 +        p=(const uint8_t *)p32;
   1.367 +    } else {
   1.368 +        p=NULL;
   1.369 +        length=0;
   1.370 +    }
   1.371 +    if(pLength) {
   1.372 +        *pLength=length;
   1.373 +    }
   1.374 +    return p;
   1.375 +}
   1.376 +
   1.377 +
   1.378 +U_CAPI const int32_t * U_EXPORT2
   1.379 +res_getIntVector(const ResourceData *pResData, Resource res, int32_t *pLength) {
   1.380 +    const int32_t *p;
   1.381 +    uint32_t offset=RES_GET_OFFSET(res);
   1.382 +    int32_t length;
   1.383 +    if(RES_GET_TYPE(res)==URES_INT_VECTOR) {
   1.384 +        p= offset==0 ? (const int32_t *)&gEmpty32 : pResData->pRoot+offset;
   1.385 +        length=*p++;
   1.386 +    } else {
   1.387 +        p=NULL;
   1.388 +        length=0;
   1.389 +    }
   1.390 +    if(pLength) {
   1.391 +        *pLength=length;
   1.392 +    }
   1.393 +    return p;
   1.394 +}
   1.395 +
   1.396 +U_CAPI int32_t U_EXPORT2
   1.397 +res_countArrayItems(const ResourceData *pResData, Resource res) {
   1.398 +    uint32_t offset=RES_GET_OFFSET(res);
   1.399 +    switch(RES_GET_TYPE(res)) {
   1.400 +    case URES_STRING:
   1.401 +    case URES_STRING_V2:
   1.402 +    case URES_BINARY:
   1.403 +    case URES_ALIAS:
   1.404 +    case URES_INT:
   1.405 +    case URES_INT_VECTOR:
   1.406 +        return 1;
   1.407 +    case URES_ARRAY:
   1.408 +    case URES_TABLE32:
   1.409 +        return offset==0 ? 0 : *(pResData->pRoot+offset);
   1.410 +    case URES_TABLE:
   1.411 +        return offset==0 ? 0 : *((const uint16_t *)(pResData->pRoot+offset));
   1.412 +    case URES_ARRAY16:
   1.413 +    case URES_TABLE16:
   1.414 +        return pResData->p16BitUnits[offset];
   1.415 +    default:
   1.416 +        return 0;
   1.417 +    }
   1.418 +}
   1.419 +
   1.420 +U_CAPI Resource U_EXPORT2
   1.421 +res_getTableItemByKey(const ResourceData *pResData, Resource table,
   1.422 +                      int32_t *indexR, const char **key) {
   1.423 +    uint32_t offset=RES_GET_OFFSET(table);
   1.424 +    int32_t length;
   1.425 +    int32_t idx;
   1.426 +    if(key == NULL || *key == NULL) {
   1.427 +        return RES_BOGUS;
   1.428 +    }
   1.429 +    switch(RES_GET_TYPE(table)) {
   1.430 +    case URES_TABLE: {
   1.431 +        if (offset!=0) { /* empty if offset==0 */
   1.432 +            const uint16_t *p= (const uint16_t *)(pResData->pRoot+offset);
   1.433 +            length=*p++;
   1.434 +            *indexR=idx=_res_findTableItem(pResData, p, length, *key, key);
   1.435 +            if(idx>=0) {
   1.436 +                const Resource *p32=(const Resource *)(p+length+(~length&1));
   1.437 +                return p32[idx];
   1.438 +            }
   1.439 +        }
   1.440 +        break;
   1.441 +    }
   1.442 +    case URES_TABLE16: {
   1.443 +        const uint16_t *p=pResData->p16BitUnits+offset;
   1.444 +        length=*p++;
   1.445 +        *indexR=idx=_res_findTableItem(pResData, p, length, *key, key);
   1.446 +        if(idx>=0) {
   1.447 +            return URES_MAKE_RESOURCE(URES_STRING_V2, p[length+idx]);
   1.448 +        }
   1.449 +        break;
   1.450 +    }
   1.451 +    case URES_TABLE32: {
   1.452 +        if (offset!=0) { /* empty if offset==0 */
   1.453 +            const int32_t *p= pResData->pRoot+offset;
   1.454 +            length=*p++;
   1.455 +            *indexR=idx=_res_findTable32Item(pResData, p, length, *key, key);
   1.456 +            if(idx>=0) {
   1.457 +                return (Resource)p[length+idx];
   1.458 +            }
   1.459 +        }
   1.460 +        break;
   1.461 +    }
   1.462 +    default:
   1.463 +        break;
   1.464 +    }
   1.465 +    return RES_BOGUS;
   1.466 +}
   1.467 +
   1.468 +U_CAPI Resource U_EXPORT2
   1.469 +res_getTableItemByIndex(const ResourceData *pResData, Resource table,
   1.470 +                        int32_t indexR, const char **key) {
   1.471 +    uint32_t offset=RES_GET_OFFSET(table);
   1.472 +    int32_t length;
   1.473 +    U_ASSERT(indexR>=0); /* to ensure the index is not negative */
   1.474 +    switch(RES_GET_TYPE(table)) {
   1.475 +    case URES_TABLE: {
   1.476 +        if (offset != 0) { /* empty if offset==0 */
   1.477 +            const uint16_t *p= (const uint16_t *)(pResData->pRoot+offset);
   1.478 +            length=*p++;
   1.479 +            if(indexR<length) {
   1.480 +                const Resource *p32=(const Resource *)(p+length+(~length&1));
   1.481 +                if(key!=NULL) {
   1.482 +                    *key=RES_GET_KEY16(pResData, p[indexR]);
   1.483 +                }
   1.484 +                return p32[indexR];
   1.485 +            }
   1.486 +        }
   1.487 +        break;
   1.488 +    }
   1.489 +    case URES_TABLE16: {
   1.490 +        const uint16_t *p=pResData->p16BitUnits+offset;
   1.491 +        length=*p++;
   1.492 +        if(indexR<length) {
   1.493 +            if(key!=NULL) {
   1.494 +                *key=RES_GET_KEY16(pResData, p[indexR]);
   1.495 +            }
   1.496 +            return URES_MAKE_RESOURCE(URES_STRING_V2, p[length+indexR]);
   1.497 +        }
   1.498 +        break;
   1.499 +    }
   1.500 +    case URES_TABLE32: {
   1.501 +        if (offset != 0) { /* empty if offset==0 */
   1.502 +            const int32_t *p= pResData->pRoot+offset;
   1.503 +            length=*p++;
   1.504 +            if(indexR<length) {
   1.505 +                if(key!=NULL) {
   1.506 +                    *key=RES_GET_KEY32(pResData, p[indexR]);
   1.507 +                }
   1.508 +                return (Resource)p[length+indexR];
   1.509 +            }
   1.510 +        }
   1.511 +        break;
   1.512 +    }
   1.513 +    default:
   1.514 +        break;
   1.515 +    }
   1.516 +    return RES_BOGUS;
   1.517 +}
   1.518 +
   1.519 +U_CAPI Resource U_EXPORT2
   1.520 +res_getResource(const ResourceData *pResData, const char *key) {
   1.521 +    const char *realKey=key;
   1.522 +    int32_t idx;
   1.523 +    return res_getTableItemByKey(pResData, pResData->rootRes, &idx, &realKey);
   1.524 +}
   1.525 +
   1.526 +U_CAPI Resource U_EXPORT2
   1.527 +res_getArrayItem(const ResourceData *pResData, Resource array, int32_t indexR) {
   1.528 +    uint32_t offset=RES_GET_OFFSET(array);
   1.529 +    U_ASSERT(indexR>=0); /* to ensure the index is not negative */
   1.530 +    switch(RES_GET_TYPE(array)) {
   1.531 +    case URES_ARRAY: {
   1.532 +        if (offset!=0) { /* empty if offset==0 */
   1.533 +            const int32_t *p= pResData->pRoot+offset;
   1.534 +            if(indexR<*p) {
   1.535 +                return (Resource)p[1+indexR];
   1.536 +            }
   1.537 +        }
   1.538 +        break;
   1.539 +    }
   1.540 +    case URES_ARRAY16: {
   1.541 +        const uint16_t *p=pResData->p16BitUnits+offset;
   1.542 +        if(indexR<*p) {
   1.543 +            return URES_MAKE_RESOURCE(URES_STRING_V2, p[1+indexR]);
   1.544 +        }
   1.545 +        break;
   1.546 +    }
   1.547 +    default:
   1.548 +        break;
   1.549 +    }
   1.550 +    return RES_BOGUS;
   1.551 +}
   1.552 +
   1.553 +U_CFUNC Resource
   1.554 +res_findResource(const ResourceData *pResData, Resource r, char** path, const char** key) {
   1.555 +  /* we pass in a path. CollationElements/Sequence or zoneStrings/3/2 etc. 
   1.556 +   * iterates over a path and stops when a scalar resource is found. This  
   1.557 +   * CAN be an alias. Path gets set to the part that has not yet been processed. 
   1.558 +   */
   1.559 +
   1.560 +  char *pathP = *path, *nextSepP = *path;
   1.561 +  char *closeIndex = NULL;
   1.562 +  Resource t1 = r;
   1.563 +  Resource t2;
   1.564 +  int32_t indexR = 0;
   1.565 +  UResType type = (UResType)RES_GET_TYPE(t1);
   1.566 +
   1.567 +  /* if you come in with an empty path, you'll be getting back the same resource */
   1.568 +  if(!uprv_strlen(pathP)) {
   1.569 +      return r;
   1.570 +  }
   1.571 +
   1.572 +  /* one needs to have an aggregate resource in order to search in it */
   1.573 +  if(!URES_IS_CONTAINER(type)) {
   1.574 +      return RES_BOGUS;
   1.575 +  }
   1.576 +  
   1.577 +  while(nextSepP && *pathP && t1 != RES_BOGUS && URES_IS_CONTAINER(type)) {
   1.578 +    /* Iteration stops if: the path has been consumed, we found a non-existing
   1.579 +     * resource (t1 == RES_BOGUS) or we found a scalar resource (including alias)
   1.580 +     */
   1.581 +    nextSepP = uprv_strchr(pathP, RES_PATH_SEPARATOR);
   1.582 +    /* if there are more separators, terminate string 
   1.583 +     * and set path to the remaining part of the string
   1.584 +     */
   1.585 +    if(nextSepP != NULL) {
   1.586 +      *nextSepP = 0; /* overwrite the separator with a NUL to terminate the key */
   1.587 +      *path = nextSepP+1;
   1.588 +    } else {
   1.589 +      *path = uprv_strchr(pathP, 0);
   1.590 +    }
   1.591 +
   1.592 +    /* if the resource is a table */
   1.593 +    /* try the key based access */
   1.594 +    if(URES_IS_TABLE(type)) {
   1.595 +      *key = pathP;
   1.596 +      t2 = res_getTableItemByKey(pResData, t1, &indexR, key);
   1.597 +      if(t2 == RES_BOGUS) { 
   1.598 +        /* if we fail to get the resource by key, maybe we got an index */
   1.599 +        indexR = uprv_strtol(pathP, &closeIndex, 10);
   1.600 +        if(closeIndex != pathP) {
   1.601 +          /* if we indeed have an index, try to get the item by index */
   1.602 +          t2 = res_getTableItemByIndex(pResData, t1, indexR, key);
   1.603 +        }
   1.604 +      }
   1.605 +    } else if(URES_IS_ARRAY(type)) {
   1.606 +      indexR = uprv_strtol(pathP, &closeIndex, 10);
   1.607 +      if(closeIndex != pathP) {
   1.608 +        t2 = res_getArrayItem(pResData, t1, indexR);
   1.609 +      } else {
   1.610 +        t2 = RES_BOGUS; /* have an array, but don't have a valid index */
   1.611 +      }
   1.612 +      *key = NULL;
   1.613 +    } else { /* can't do much here, except setting t2 to bogus */
   1.614 +      t2 = RES_BOGUS;
   1.615 +    }
   1.616 +    t1 = t2;
   1.617 +    type = (UResType)RES_GET_TYPE(t1);
   1.618 +    /* position pathP to next resource key/index */
   1.619 +    pathP = *path;
   1.620 +  }
   1.621 +
   1.622 +  return t1;
   1.623 +}
   1.624 +
   1.625 +/* resource bundle swapping ------------------------------------------------- */
   1.626 +
   1.627 +/*
   1.628 + * Need to always enumerate the entire item tree,
   1.629 + * track the lowest address of any item to use as the limit for char keys[],
   1.630 + * track the highest address of any item to return the size of the data.
   1.631 + *
   1.632 + * We should have thought of storing those in the data...
   1.633 + * It is possible to extend the data structure by putting additional values
   1.634 + * in places that are inaccessible by ordinary enumeration of the item tree.
   1.635 + * For example, additional integers could be stored at the beginning or
   1.636 + * end of the key strings; this could be indicated by a minor version number,
   1.637 + * and the data swapping would have to know about these values.
   1.638 + *
   1.639 + * The data structure does not forbid keys to be shared, so we must swap
   1.640 + * all keys once instead of each key when it is referenced.
   1.641 + *
   1.642 + * These swapping functions assume that a resource bundle always has a length
   1.643 + * that is a multiple of 4 bytes.
   1.644 + * Currently, this is trivially true because genrb writes bundle tree leaves
   1.645 + * physically first, before their branches, so that the root table with its
   1.646 + * array of resource items (uint32_t values) is always last.
   1.647 + */
   1.648 +
   1.649 +/* definitions for table sorting ------------------------ */
   1.650 +
   1.651 +/*
   1.652 + * row of a temporary array
   1.653 + *
   1.654 + * gets platform-endian key string indexes and sorting indexes;
   1.655 + * after sorting this array by keys, the actual key/value arrays are permutated
   1.656 + * according to the sorting indexes
   1.657 + */
   1.658 +typedef struct Row {
   1.659 +    int32_t keyIndex, sortIndex;
   1.660 +} Row;
   1.661 +
   1.662 +static int32_t
   1.663 +ures_compareRows(const void *context, const void *left, const void *right) {
   1.664 +    const char *keyChars=(const char *)context;
   1.665 +    return (int32_t)uprv_strcmp(keyChars+((const Row *)left)->keyIndex,
   1.666 +                                keyChars+((const Row *)right)->keyIndex);
   1.667 +}
   1.668 +
   1.669 +typedef struct TempTable {
   1.670 +    const char *keyChars;
   1.671 +    Row *rows;
   1.672 +    int32_t *resort;
   1.673 +    uint32_t *resFlags;
   1.674 +    int32_t localKeyLimit;
   1.675 +    uint8_t majorFormatVersion;
   1.676 +} TempTable;
   1.677 +
   1.678 +enum {
   1.679 +    STACK_ROW_CAPACITY=200
   1.680 +};
   1.681 +
   1.682 +/* The table item key string is not locally available. */
   1.683 +static const char *const gUnknownKey="";
   1.684 +
   1.685 +/* resource table key for collation binaries: "%%CollationBin" */
   1.686 +static const UChar gCollationBinKey[]={
   1.687 +    0x25, 0x25,
   1.688 +    0x43, 0x6f, 0x6c, 0x6c, 0x61, 0x74, 0x69, 0x6f, 0x6e,
   1.689 +    0x42, 0x69, 0x6e,
   1.690 +    0
   1.691 +};
   1.692 +
   1.693 +/*
   1.694 + * swap one resource item
   1.695 + */
   1.696 +static void
   1.697 +ures_swapResource(const UDataSwapper *ds,
   1.698 +                  const Resource *inBundle, Resource *outBundle,
   1.699 +                  Resource res, /* caller swaps res itself */
   1.700 +                  const char *key,
   1.701 +                  TempTable *pTempTable,
   1.702 +                  UErrorCode *pErrorCode) {
   1.703 +    const Resource *p;
   1.704 +    Resource *q;
   1.705 +    int32_t offset, count;
   1.706 +
   1.707 +    switch(RES_GET_TYPE(res)) {
   1.708 +    case URES_TABLE16:
   1.709 +    case URES_STRING_V2:
   1.710 +    case URES_INT:
   1.711 +    case URES_ARRAY16:
   1.712 +        /* integer, or points to 16-bit units, nothing to do here */
   1.713 +        return;
   1.714 +    default:
   1.715 +        break;
   1.716 +    }
   1.717 +
   1.718 +    /* all other types use an offset to point to their data */
   1.719 +    offset=(int32_t)RES_GET_OFFSET(res);
   1.720 +    if(offset==0) {
   1.721 +        /* special offset indicating an empty item */
   1.722 +        return;
   1.723 +    }
   1.724 +    if(pTempTable->resFlags[offset>>5]&((uint32_t)1<<(offset&0x1f))) {
   1.725 +        /* we already swapped this resource item */
   1.726 +        return;
   1.727 +    } else {
   1.728 +        /* mark it as swapped now */
   1.729 +        pTempTable->resFlags[offset>>5]|=((uint32_t)1<<(offset&0x1f));
   1.730 +    }
   1.731 +
   1.732 +    p=inBundle+offset;
   1.733 +    q=outBundle+offset;
   1.734 +
   1.735 +    switch(RES_GET_TYPE(res)) {
   1.736 +    case URES_ALIAS:
   1.737 +        /* physically same value layout as string, fall through */
   1.738 +    case URES_STRING:
   1.739 +        count=udata_readInt32(ds, (int32_t)*p);
   1.740 +        /* swap length */
   1.741 +        ds->swapArray32(ds, p, 4, q, pErrorCode);
   1.742 +        /* swap each UChar (the terminating NUL would not change) */
   1.743 +        ds->swapArray16(ds, p+1, 2*count, q+1, pErrorCode);
   1.744 +        break;
   1.745 +    case URES_BINARY:
   1.746 +        count=udata_readInt32(ds, (int32_t)*p);
   1.747 +        /* swap length */
   1.748 +        ds->swapArray32(ds, p, 4, q, pErrorCode);
   1.749 +        /* no need to swap or copy bytes - ures_swap() copied them all */
   1.750 +
   1.751 +        /* swap known formats */
   1.752 +#if !UCONFIG_NO_COLLATION
   1.753 +        if( key!=NULL &&  /* the binary is in a table */
   1.754 +            (key!=gUnknownKey ?
   1.755 +                /* its table key string is "%%CollationBin" */
   1.756 +                0==ds->compareInvChars(ds, key, -1,
   1.757 +                                       gCollationBinKey, LENGTHOF(gCollationBinKey)-1) :
   1.758 +                /* its table key string is unknown but it looks like a collation binary */
   1.759 +                ucol_looksLikeCollationBinary(ds, p+1, count))
   1.760 +        ) {
   1.761 +            ucol_swapBinary(ds, p+1, count, q+1, pErrorCode);
   1.762 +        }
   1.763 +#endif
   1.764 +        break;
   1.765 +    case URES_TABLE:
   1.766 +    case URES_TABLE32:
   1.767 +        {
   1.768 +            const uint16_t *pKey16;
   1.769 +            uint16_t *qKey16;
   1.770 +
   1.771 +            const int32_t *pKey32;
   1.772 +            int32_t *qKey32;
   1.773 +
   1.774 +            Resource item;
   1.775 +            int32_t i, oldIndex;
   1.776 +
   1.777 +            if(RES_GET_TYPE(res)==URES_TABLE) {
   1.778 +                /* get table item count */
   1.779 +                pKey16=(const uint16_t *)p;
   1.780 +                qKey16=(uint16_t *)q;
   1.781 +                count=ds->readUInt16(*pKey16);
   1.782 +
   1.783 +                pKey32=qKey32=NULL;
   1.784 +
   1.785 +                /* swap count */
   1.786 +                ds->swapArray16(ds, pKey16++, 2, qKey16++, pErrorCode);
   1.787 +
   1.788 +                offset+=((1+count)+1)/2;
   1.789 +            } else {
   1.790 +                /* get table item count */
   1.791 +                pKey32=(const int32_t *)p;
   1.792 +                qKey32=(int32_t *)q;
   1.793 +                count=udata_readInt32(ds, *pKey32);
   1.794 +
   1.795 +                pKey16=qKey16=NULL;
   1.796 +
   1.797 +                /* swap count */
   1.798 +                ds->swapArray32(ds, pKey32++, 4, qKey32++, pErrorCode);
   1.799 +
   1.800 +                offset+=1+count;
   1.801 +            }
   1.802 +
   1.803 +            if(count==0) {
   1.804 +                break;
   1.805 +            }
   1.806 +
   1.807 +            p=inBundle+offset; /* pointer to table resources */
   1.808 +            q=outBundle+offset;
   1.809 +
   1.810 +            /* recurse */
   1.811 +            for(i=0; i<count; ++i) {
   1.812 +                const char *itemKey=gUnknownKey;
   1.813 +                if(pKey16!=NULL) {
   1.814 +                    int32_t keyOffset=ds->readUInt16(pKey16[i]);
   1.815 +                    if(keyOffset<pTempTable->localKeyLimit) {
   1.816 +                        itemKey=(const char *)outBundle+keyOffset;
   1.817 +                    }
   1.818 +                } else {
   1.819 +                    int32_t keyOffset=udata_readInt32(ds, pKey32[i]);
   1.820 +                    if(keyOffset>=0) {
   1.821 +                        itemKey=(const char *)outBundle+keyOffset;
   1.822 +                    }
   1.823 +                }
   1.824 +                item=ds->readUInt32(p[i]);
   1.825 +                ures_swapResource(ds, inBundle, outBundle, item, itemKey, pTempTable, pErrorCode);
   1.826 +                if(U_FAILURE(*pErrorCode)) {
   1.827 +                    udata_printError(ds, "ures_swapResource(table res=%08x)[%d].recurse(%08x) failed\n",
   1.828 +                                     res, i, item);
   1.829 +                    return;
   1.830 +                }
   1.831 +            }
   1.832 +
   1.833 +            if(pTempTable->majorFormatVersion>1 || ds->inCharset==ds->outCharset) {
   1.834 +                /* no need to sort, just swap the offset/value arrays */
   1.835 +                if(pKey16!=NULL) {
   1.836 +                    ds->swapArray16(ds, pKey16, count*2, qKey16, pErrorCode);
   1.837 +                    ds->swapArray32(ds, p, count*4, q, pErrorCode);
   1.838 +                } else {
   1.839 +                    /* swap key offsets and items as one array */
   1.840 +                    ds->swapArray32(ds, pKey32, count*2*4, qKey32, pErrorCode);
   1.841 +                }
   1.842 +                break;
   1.843 +            }
   1.844 +
   1.845 +            /*
   1.846 +             * We need to sort tables by outCharset key strings because they
   1.847 +             * sort differently for different charset families.
   1.848 +             * ures_swap() already set pTempTable->keyChars appropriately.
   1.849 +             * First we set up a temporary table with the key indexes and
   1.850 +             * sorting indexes and sort that.
   1.851 +             * Then we permutate and copy/swap the actual values.
   1.852 +             */
   1.853 +            if(pKey16!=NULL) {
   1.854 +                for(i=0; i<count; ++i) {
   1.855 +                    pTempTable->rows[i].keyIndex=ds->readUInt16(pKey16[i]);
   1.856 +                    pTempTable->rows[i].sortIndex=i;
   1.857 +                }
   1.858 +            } else {
   1.859 +                for(i=0; i<count; ++i) {
   1.860 +                    pTempTable->rows[i].keyIndex=udata_readInt32(ds, pKey32[i]);
   1.861 +                    pTempTable->rows[i].sortIndex=i;
   1.862 +                }
   1.863 +            }
   1.864 +            uprv_sortArray(pTempTable->rows, count, sizeof(Row),
   1.865 +                           ures_compareRows, pTempTable->keyChars,
   1.866 +                           FALSE, pErrorCode);
   1.867 +            if(U_FAILURE(*pErrorCode)) {
   1.868 +                udata_printError(ds, "ures_swapResource(table res=%08x).uprv_sortArray(%d items) failed\n",
   1.869 +                                 res, count);
   1.870 +                return;
   1.871 +            }
   1.872 +
   1.873 +            /*
   1.874 +             * copy/swap/permutate items
   1.875 +             *
   1.876 +             * If we swap in-place, then the permutation must use another
   1.877 +             * temporary array (pTempTable->resort)
   1.878 +             * before the results are copied to the outBundle.
   1.879 +             */
   1.880 +            /* keys */
   1.881 +            if(pKey16!=NULL) {
   1.882 +                uint16_t *rKey16;
   1.883 +
   1.884 +                if(pKey16!=qKey16) {
   1.885 +                    rKey16=qKey16;
   1.886 +                } else {
   1.887 +                    rKey16=(uint16_t *)pTempTable->resort;
   1.888 +                }
   1.889 +                for(i=0; i<count; ++i) {
   1.890 +                    oldIndex=pTempTable->rows[i].sortIndex;
   1.891 +                    ds->swapArray16(ds, pKey16+oldIndex, 2, rKey16+i, pErrorCode);
   1.892 +                }
   1.893 +                if(qKey16!=rKey16) {
   1.894 +                    uprv_memcpy(qKey16, rKey16, 2*count);
   1.895 +                }
   1.896 +            } else {
   1.897 +                int32_t *rKey32;
   1.898 +
   1.899 +                if(pKey32!=qKey32) {
   1.900 +                    rKey32=qKey32;
   1.901 +                } else {
   1.902 +                    rKey32=pTempTable->resort;
   1.903 +                }
   1.904 +                for(i=0; i<count; ++i) {
   1.905 +                    oldIndex=pTempTable->rows[i].sortIndex;
   1.906 +                    ds->swapArray32(ds, pKey32+oldIndex, 4, rKey32+i, pErrorCode);
   1.907 +                }
   1.908 +                if(qKey32!=rKey32) {
   1.909 +                    uprv_memcpy(qKey32, rKey32, 4*count);
   1.910 +                }
   1.911 +            }
   1.912 +
   1.913 +            /* resources */
   1.914 +            {
   1.915 +                Resource *r;
   1.916 +
   1.917 +
   1.918 +                if(p!=q) {
   1.919 +                    r=q;
   1.920 +                } else {
   1.921 +                    r=(Resource *)pTempTable->resort;
   1.922 +                }
   1.923 +                for(i=0; i<count; ++i) {
   1.924 +                    oldIndex=pTempTable->rows[i].sortIndex;
   1.925 +                    ds->swapArray32(ds, p+oldIndex, 4, r+i, pErrorCode);
   1.926 +                }
   1.927 +                if(q!=r) {
   1.928 +                    uprv_memcpy(q, r, 4*count);
   1.929 +                }
   1.930 +            }
   1.931 +        }
   1.932 +        break;
   1.933 +    case URES_ARRAY:
   1.934 +        {
   1.935 +            Resource item;
   1.936 +            int32_t i;
   1.937 +
   1.938 +            count=udata_readInt32(ds, (int32_t)*p);
   1.939 +            /* swap length */
   1.940 +            ds->swapArray32(ds, p++, 4, q++, pErrorCode);
   1.941 +
   1.942 +            /* recurse */
   1.943 +            for(i=0; i<count; ++i) {
   1.944 +                item=ds->readUInt32(p[i]);
   1.945 +                ures_swapResource(ds, inBundle, outBundle, item, NULL, pTempTable, pErrorCode);
   1.946 +                if(U_FAILURE(*pErrorCode)) {
   1.947 +                    udata_printError(ds, "ures_swapResource(array res=%08x)[%d].recurse(%08x) failed\n",
   1.948 +                                     res, i, item);
   1.949 +                    return;
   1.950 +                }
   1.951 +            }
   1.952 +
   1.953 +            /* swap items */
   1.954 +            ds->swapArray32(ds, p, 4*count, q, pErrorCode);
   1.955 +        }
   1.956 +        break;
   1.957 +    case URES_INT_VECTOR:
   1.958 +        count=udata_readInt32(ds, (int32_t)*p);
   1.959 +        /* swap length and each integer */
   1.960 +        ds->swapArray32(ds, p, 4*(1+count), q, pErrorCode);
   1.961 +        break;
   1.962 +    default:
   1.963 +        /* also catches RES_BOGUS */
   1.964 +        *pErrorCode=U_UNSUPPORTED_ERROR;
   1.965 +        break;
   1.966 +    }
   1.967 +}
   1.968 +
   1.969 +U_CAPI int32_t U_EXPORT2
   1.970 +ures_swap(const UDataSwapper *ds,
   1.971 +          const void *inData, int32_t length, void *outData,
   1.972 +          UErrorCode *pErrorCode) {
   1.973 +    const UDataInfo *pInfo;
   1.974 +    const Resource *inBundle;
   1.975 +    Resource rootRes;
   1.976 +    int32_t headerSize, maxTableLength;
   1.977 +
   1.978 +    Row rows[STACK_ROW_CAPACITY];
   1.979 +    int32_t resort[STACK_ROW_CAPACITY];
   1.980 +    TempTable tempTable;
   1.981 +
   1.982 +    const int32_t *inIndexes;
   1.983 +
   1.984 +    /* the following integers count Resource item offsets (4 bytes each), not bytes */
   1.985 +    int32_t bundleLength, indexLength, keysBottom, keysTop, resBottom, top;
   1.986 +
   1.987 +    /* udata_swapDataHeader checks the arguments */
   1.988 +    headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode);
   1.989 +    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
   1.990 +        return 0;
   1.991 +    }
   1.992 +
   1.993 +    /* check data format and format version */
   1.994 +    pInfo=(const UDataInfo *)((const char *)inData+4);
   1.995 +    if(!(
   1.996 +        pInfo->dataFormat[0]==0x52 &&   /* dataFormat="ResB" */
   1.997 +        pInfo->dataFormat[1]==0x65 &&
   1.998 +        pInfo->dataFormat[2]==0x73 &&
   1.999 +        pInfo->dataFormat[3]==0x42 &&
  1.1000 +        ((pInfo->formatVersion[0]==1 && pInfo->formatVersion[1]>=1) ||  /* formatVersion 1.1+ or 2.x */
  1.1001 +         pInfo->formatVersion[0]==2)
  1.1002 +    )) {
  1.1003 +        udata_printError(ds, "ures_swap(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not a resource bundle\n",
  1.1004 +                         pInfo->dataFormat[0], pInfo->dataFormat[1],
  1.1005 +                         pInfo->dataFormat[2], pInfo->dataFormat[3],
  1.1006 +                         pInfo->formatVersion[0], pInfo->formatVersion[1]);
  1.1007 +        *pErrorCode=U_UNSUPPORTED_ERROR;
  1.1008 +        return 0;
  1.1009 +    }
  1.1010 +    tempTable.majorFormatVersion=pInfo->formatVersion[0];
  1.1011 +
  1.1012 +    /* a resource bundle must contain at least one resource item */
  1.1013 +    if(length<0) {
  1.1014 +        bundleLength=-1;
  1.1015 +    } else {
  1.1016 +        bundleLength=(length-headerSize)/4;
  1.1017 +
  1.1018 +        /* formatVersion 1.1 must have a root item and at least 5 indexes */
  1.1019 +        if(bundleLength<(1+5)) {
  1.1020 +            udata_printError(ds, "ures_swap(): too few bytes (%d after header) for a resource bundle\n",
  1.1021 +                             length-headerSize);
  1.1022 +            *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
  1.1023 +            return 0;
  1.1024 +        }
  1.1025 +    }
  1.1026 +
  1.1027 +    inBundle=(const Resource *)((const char *)inData+headerSize);
  1.1028 +    rootRes=ds->readUInt32(*inBundle);
  1.1029 +
  1.1030 +    /* formatVersion 1.1 adds the indexes[] array */
  1.1031 +    inIndexes=(const int32_t *)(inBundle+1);
  1.1032 +
  1.1033 +    indexLength=udata_readInt32(ds, inIndexes[URES_INDEX_LENGTH])&0xff;
  1.1034 +    if(indexLength<=URES_INDEX_MAX_TABLE_LENGTH) {
  1.1035 +        udata_printError(ds, "ures_swap(): too few indexes for a 1.1+ resource bundle\n");
  1.1036 +        *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
  1.1037 +        return 0;
  1.1038 +    }
  1.1039 +    keysBottom=1+indexLength;
  1.1040 +    keysTop=udata_readInt32(ds, inIndexes[URES_INDEX_KEYS_TOP]);
  1.1041 +    if(indexLength>URES_INDEX_16BIT_TOP) {
  1.1042 +        resBottom=udata_readInt32(ds, inIndexes[URES_INDEX_16BIT_TOP]);
  1.1043 +    } else {
  1.1044 +        resBottom=keysTop;
  1.1045 +    }
  1.1046 +    top=udata_readInt32(ds, inIndexes[URES_INDEX_BUNDLE_TOP]);
  1.1047 +    maxTableLength=udata_readInt32(ds, inIndexes[URES_INDEX_MAX_TABLE_LENGTH]);
  1.1048 +
  1.1049 +    if(0<=bundleLength && bundleLength<top) {
  1.1050 +        udata_printError(ds, "ures_swap(): resource top %d exceeds bundle length %d\n",
  1.1051 +                         top, bundleLength);
  1.1052 +        *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
  1.1053 +        return 0;
  1.1054 +    }
  1.1055 +    if(keysTop>(1+indexLength)) {
  1.1056 +        tempTable.localKeyLimit=keysTop<<2;
  1.1057 +    } else {
  1.1058 +        tempTable.localKeyLimit=0;
  1.1059 +    }
  1.1060 +
  1.1061 +    if(length>=0) {
  1.1062 +        Resource *outBundle=(Resource *)((char *)outData+headerSize);
  1.1063 +
  1.1064 +        /* track which resources we have already swapped */
  1.1065 +        uint32_t stackResFlags[STACK_ROW_CAPACITY];
  1.1066 +        int32_t resFlagsLength;
  1.1067 +
  1.1068 +        /*
  1.1069 +         * We need one bit per 4 resource bundle bytes so that we can track
  1.1070 +         * every possible Resource for whether we have swapped it already.
  1.1071 +         * Multiple Resource words can refer to the same bundle offsets
  1.1072 +         * for sharing identical values.
  1.1073 +         * We could optimize this by allocating only for locations above
  1.1074 +         * where Resource values are stored (above keys & strings).
  1.1075 +         */
  1.1076 +        resFlagsLength=(length+31)>>5;          /* number of bytes needed */
  1.1077 +        resFlagsLength=(resFlagsLength+3)&~3;   /* multiple of 4 bytes for uint32_t */
  1.1078 +        if(resFlagsLength<=sizeof(stackResFlags)) {
  1.1079 +            tempTable.resFlags=stackResFlags;
  1.1080 +        } else {
  1.1081 +            tempTable.resFlags=(uint32_t *)uprv_malloc(resFlagsLength);
  1.1082 +            if(tempTable.resFlags==NULL) {
  1.1083 +                udata_printError(ds, "ures_swap(): unable to allocate memory for tracking resources\n");
  1.1084 +                *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
  1.1085 +                return 0;
  1.1086 +            }
  1.1087 +        }
  1.1088 +        uprv_memset(tempTable.resFlags, 0, resFlagsLength);
  1.1089 +
  1.1090 +        /* copy the bundle for binary and inaccessible data */
  1.1091 +        if(inData!=outData) {
  1.1092 +            uprv_memcpy(outBundle, inBundle, 4*top);
  1.1093 +        }
  1.1094 +
  1.1095 +        /* swap the key strings, but not the padding bytes (0xaa) after the last string and its NUL */
  1.1096 +        udata_swapInvStringBlock(ds, inBundle+keysBottom, 4*(keysTop-keysBottom),
  1.1097 +                                    outBundle+keysBottom, pErrorCode);
  1.1098 +        if(U_FAILURE(*pErrorCode)) {
  1.1099 +            udata_printError(ds, "ures_swap().udata_swapInvStringBlock(keys[%d]) failed\n", 4*(keysTop-keysBottom));
  1.1100 +            return 0;
  1.1101 +        }
  1.1102 +
  1.1103 +        /* swap the 16-bit units (strings, table16, array16) */
  1.1104 +        if(keysTop<resBottom) {
  1.1105 +            ds->swapArray16(ds, inBundle+keysTop, (resBottom-keysTop)*4, outBundle+keysTop, pErrorCode);
  1.1106 +            if(U_FAILURE(*pErrorCode)) {
  1.1107 +                udata_printError(ds, "ures_swap().swapArray16(16-bit units[%d]) failed\n", 2*(resBottom-keysTop));
  1.1108 +                return 0;
  1.1109 +            }
  1.1110 +        }
  1.1111 +
  1.1112 +        /* allocate the temporary table for sorting resource tables */
  1.1113 +        tempTable.keyChars=(const char *)outBundle; /* sort by outCharset */
  1.1114 +        if(tempTable.majorFormatVersion>1 || maxTableLength<=STACK_ROW_CAPACITY) {
  1.1115 +            tempTable.rows=rows;
  1.1116 +            tempTable.resort=resort;
  1.1117 +        } else {
  1.1118 +            tempTable.rows=(Row *)uprv_malloc(maxTableLength*sizeof(Row)+maxTableLength*4);
  1.1119 +            if(tempTable.rows==NULL) {
  1.1120 +                udata_printError(ds, "ures_swap(): unable to allocate memory for sorting tables (max length: %d)\n",
  1.1121 +                                 maxTableLength);
  1.1122 +                *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
  1.1123 +                if(tempTable.resFlags!=stackResFlags) {
  1.1124 +                    uprv_free(tempTable.resFlags);
  1.1125 +                }
  1.1126 +                return 0;
  1.1127 +            }
  1.1128 +            tempTable.resort=(int32_t *)(tempTable.rows+maxTableLength);
  1.1129 +        }
  1.1130 +
  1.1131 +        /* swap the resources */
  1.1132 +        ures_swapResource(ds, inBundle, outBundle, rootRes, NULL, &tempTable, pErrorCode);
  1.1133 +        if(U_FAILURE(*pErrorCode)) {
  1.1134 +            udata_printError(ds, "ures_swapResource(root res=%08x) failed\n",
  1.1135 +                             rootRes);
  1.1136 +        }
  1.1137 +
  1.1138 +        if(tempTable.rows!=rows) {
  1.1139 +            uprv_free(tempTable.rows);
  1.1140 +        }
  1.1141 +        if(tempTable.resFlags!=stackResFlags) {
  1.1142 +            uprv_free(tempTable.resFlags);
  1.1143 +        }
  1.1144 +
  1.1145 +        /* swap the root resource and indexes */
  1.1146 +        ds->swapArray32(ds, inBundle, keysBottom*4, outBundle, pErrorCode);
  1.1147 +    }
  1.1148 +
  1.1149 +    return headerSize+4*top;
  1.1150 +}

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