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godot/thirdparty/icu4c/common/uresdata.cpp

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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1999-2016, International Business Machines Corporation
* and others. All Rights Reserved.
*******************************************************************************
* file name: uresdata.cpp
* encoding: UTF-8
* tab size: 8 (not used)
* indentation:4
*
* created on: 1999dec08
* created by: Markus W. Scherer
* Modification History:
*
* Date Name Description
* 06/20/2000 helena OS/400 port changes; mostly typecast.
* 06/24/02 weiv Added support for resource sharing
*/
#include "unicode/utypes.h"
#include "unicode/udata.h"
#include "unicode/ustring.h"
#include "unicode/utf16.h"
#include "cmemory.h"
#include "cstring.h"
#include "resource.h"
#include "uarrsort.h"
#include "uassert.h"
#include "ucol_swp.h"
#include "udataswp.h"
#include "uinvchar.h"
#include "uresdata.h"
#include "uresimp.h"
#include "utracimp.h"
/*
* Resource access helpers
*/
/* get a const char* pointer to the key with the keyOffset byte offset from pRoot */
#define RES_GET_KEY16(pResData, keyOffset) \
((keyOffset)<(pResData)->localKeyLimit ? \
(const char *)(pResData)->pRoot+(keyOffset) : \
(pResData)->poolBundleKeys+(keyOffset)-(pResData)->localKeyLimit)
#define RES_GET_KEY32(pResData, keyOffset) \
((keyOffset)>=0 ? \
(const char *)(pResData)->pRoot+(keyOffset) : \
(pResData)->poolBundleKeys+((keyOffset)&0x7fffffff))
#define URESDATA_ITEM_NOT_FOUND -1
/* empty resources, returned when the resource offset is 0 */
static const uint16_t gEmpty16=0;
static const struct {
int32_t length;
int32_t res;
} gEmpty32={ 0, 0 };
static const struct {
int32_t length;
UChar nul;
UChar pad;
} gEmptyString={ 0, 0, 0 };
/*
* All the type-access functions assume that
* the resource is of the expected type.
*/
static int32_t
_res_findTableItem(const ResourceData *pResData, const uint16_t *keyOffsets, int32_t length,
const char *key, const char **realKey) {
const char *tableKey;
int32_t mid, start, limit;
int result;
/* do a binary search for the key */
start=0;
limit=length;
while(start<limit) {
mid = (start + limit) / 2;
tableKey = RES_GET_KEY16(pResData, keyOffsets[mid]);
if (pResData->useNativeStrcmp) {
result = uprv_strcmp(key, tableKey);
} else {
result = uprv_compareInvCharsAsAscii(key, tableKey);
}
if (result < 0) {
limit = mid;
} else if (result > 0) {
start = mid + 1;
} else {
/* We found it! */
*realKey=tableKey;
return mid;
}
}
return URESDATA_ITEM_NOT_FOUND; /* not found or table is empty. */
}
static int32_t
_res_findTable32Item(const ResourceData *pResData, const int32_t *keyOffsets, int32_t length,
const char *key, const char **realKey) {
const char *tableKey;
int32_t mid, start, limit;
int result;
/* do a binary search for the key */
start=0;
limit=length;
while(start<limit) {
mid = (start + limit) / 2;
tableKey = RES_GET_KEY32(pResData, keyOffsets[mid]);
if (pResData->useNativeStrcmp) {
result = uprv_strcmp(key, tableKey);
} else {
result = uprv_compareInvCharsAsAscii(key, tableKey);
}
if (result < 0) {
limit = mid;
} else if (result > 0) {
start = mid + 1;
} else {
/* We found it! */
*realKey=tableKey;
return mid;
}
}
return URESDATA_ITEM_NOT_FOUND; /* not found or table is empty. */
}
/* helper for res_load() ---------------------------------------------------- */
static UBool U_CALLCONV
isAcceptable(void *context,
const char * /*type*/, const char * /*name*/,
const UDataInfo *pInfo) {
uprv_memcpy(context, pInfo->formatVersion, 4);
return (UBool)(
pInfo->size>=20 &&
pInfo->isBigEndian==U_IS_BIG_ENDIAN &&
pInfo->charsetFamily==U_CHARSET_FAMILY &&
pInfo->sizeofUChar==U_SIZEOF_UCHAR &&
pInfo->dataFormat[0]==0x52 && /* dataFormat="ResB" */
pInfo->dataFormat[1]==0x65 &&
pInfo->dataFormat[2]==0x73 &&
pInfo->dataFormat[3]==0x42 &&
(1<=pInfo->formatVersion[0] && pInfo->formatVersion[0]<=3));
}
/* semi-public functions ---------------------------------------------------- */
static void
res_init(ResourceData *pResData,
UVersionInfo formatVersion, const void *inBytes, int32_t length,
UErrorCode *errorCode) {
UResType rootType;
/* get the root resource */
pResData->pRoot=(const int32_t *)inBytes;
pResData->rootRes=(Resource)*pResData->pRoot;
pResData->p16BitUnits=&gEmpty16;
/* formatVersion 1.1 must have a root item and at least 5 indexes */
if(length>=0 && (length/4)<((formatVersion[0]==1 && formatVersion[1]==0) ? 1 : 1+5)) {
*errorCode=U_INVALID_FORMAT_ERROR;
res_unload(pResData);
return;
}
/* currently, we accept only resources that have a Table as their roots */
rootType=(UResType)RES_GET_TYPE(pResData->rootRes);
if(!URES_IS_TABLE(rootType)) {
*errorCode=U_INVALID_FORMAT_ERROR;
res_unload(pResData);
return;
}
if(formatVersion[0]==1 && formatVersion[1]==0) {
pResData->localKeyLimit=0x10000; /* greater than any 16-bit key string offset */
} else {
/* bundles with formatVersion 1.1 and later contain an indexes[] array */
const int32_t *indexes=pResData->pRoot+1;
int32_t indexLength=indexes[URES_INDEX_LENGTH]&0xff;
if(indexLength<=URES_INDEX_MAX_TABLE_LENGTH) {
*errorCode=U_INVALID_FORMAT_ERROR;
res_unload(pResData);
return;
}
if( length>=0 &&
(length<((1+indexLength)<<2) ||
length<(indexes[URES_INDEX_BUNDLE_TOP]<<2))
) {
*errorCode=U_INVALID_FORMAT_ERROR;
res_unload(pResData);
return;
}
if(indexes[URES_INDEX_KEYS_TOP]>(1+indexLength)) {
pResData->localKeyLimit=indexes[URES_INDEX_KEYS_TOP]<<2;
}
if(formatVersion[0]>=3) {
// In formatVersion 1, the indexLength took up this whole int.
// In version 2, bits 31..8 were reserved and always 0.
// In version 3, they contain bits 23..0 of the poolStringIndexLimit.
// Bits 27..24 are in indexes[URES_INDEX_ATTRIBUTES] bits 15..12.
pResData->poolStringIndexLimit=(int32_t)((uint32_t)indexes[URES_INDEX_LENGTH]>>8);
}
if(indexLength>URES_INDEX_ATTRIBUTES) {
int32_t att=indexes[URES_INDEX_ATTRIBUTES];
pResData->noFallback=(UBool)(att&URES_ATT_NO_FALLBACK);
pResData->isPoolBundle=(UBool)((att&URES_ATT_IS_POOL_BUNDLE)!=0);
pResData->usesPoolBundle=(UBool)((att&URES_ATT_USES_POOL_BUNDLE)!=0);
pResData->poolStringIndexLimit|=(att&0xf000)<<12; // bits 15..12 -> 27..24
pResData->poolStringIndex16Limit=(int32_t)((uint32_t)att>>16);
}
if((pResData->isPoolBundle || pResData->usesPoolBundle) && indexLength<=URES_INDEX_POOL_CHECKSUM) {
*errorCode=U_INVALID_FORMAT_ERROR;
res_unload(pResData);
return;
}
if( indexLength>URES_INDEX_16BIT_TOP &&
indexes[URES_INDEX_16BIT_TOP]>indexes[URES_INDEX_KEYS_TOP]
) {
pResData->p16BitUnits=(const uint16_t *)(pResData->pRoot+indexes[URES_INDEX_KEYS_TOP]);
}
}
if(formatVersion[0]==1 || U_CHARSET_FAMILY==U_ASCII_FAMILY) {
/*
* formatVersion 1: compare key strings in native-charset order
* formatVersion 2 and up: compare key strings in ASCII order
*/
pResData->useNativeStrcmp=TRUE;
}
}
U_CAPI void U_EXPORT2
res_read(ResourceData *pResData,
const UDataInfo *pInfo, const void *inBytes, int32_t length,
UErrorCode *errorCode) {
UVersionInfo formatVersion;
uprv_memset(pResData, 0, sizeof(ResourceData));
if(U_FAILURE(*errorCode)) {
return;
}
if(!isAcceptable(formatVersion, NULL, NULL, pInfo)) {
*errorCode=U_INVALID_FORMAT_ERROR;
return;
}
res_init(pResData, formatVersion, inBytes, length, errorCode);
}
U_CFUNC void
res_load(ResourceData *pResData,
const char *path, const char *name, UErrorCode *errorCode) {
UVersionInfo formatVersion;
uprv_memset(pResData, 0, sizeof(ResourceData));
/* load the ResourceBundle file */
pResData->data=udata_openChoice(path, "res", name, isAcceptable, formatVersion, errorCode);
if(U_FAILURE(*errorCode)) {
return;
}
/* get its memory and initialize *pResData */
res_init(pResData, formatVersion, udata_getMemory(pResData->data), -1, errorCode);
}
U_CFUNC void
res_unload(ResourceData *pResData) {
if(pResData->data!=NULL) {
udata_close(pResData->data);
pResData->data=NULL;
}
}
static const int8_t gPublicTypes[URES_LIMIT] = {
URES_STRING,
URES_BINARY,
URES_TABLE,
URES_ALIAS,
URES_TABLE, /* URES_TABLE32 */
URES_TABLE, /* URES_TABLE16 */
URES_STRING, /* URES_STRING_V2 */
URES_INT,
URES_ARRAY,
URES_ARRAY, /* URES_ARRAY16 */
URES_NONE,
URES_NONE,
URES_NONE,
URES_NONE,
URES_INT_VECTOR,
URES_NONE
};
U_CAPI UResType U_EXPORT2
res_getPublicType(Resource res) {
return (UResType)gPublicTypes[RES_GET_TYPE(res)];
}
U_CAPI const UChar * U_EXPORT2
res_getStringNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength) {
const UChar *p;
uint32_t offset=RES_GET_OFFSET(res);
int32_t length;
if(RES_GET_TYPE(res)==URES_STRING_V2) {
int32_t first;
if((int32_t)offset<pResData->poolStringIndexLimit) {
p=(const UChar *)pResData->poolBundleStrings+offset;
} else {
p=(const UChar *)pResData->p16BitUnits+(offset-pResData->poolStringIndexLimit);
}
first=*p;
if(!U16_IS_TRAIL(first)) {
length=u_strlen(p);
} else if(first<0xdfef) {
length=first&0x3ff;
++p;
} else if(first<0xdfff) {
length=((first-0xdfef)<<16)|p[1];
p+=2;
} else {
length=((int32_t)p[1]<<16)|p[2];
p+=3;
}
} else if(res==offset) /* RES_GET_TYPE(res)==URES_STRING */ {
const int32_t *p32= res==0 ? &gEmptyString.length : pResData->pRoot+res;
length=*p32++;
p=(const UChar *)p32;
} else {
p=NULL;
length=0;
}
if(pLength) {
*pLength=length;
}
return p;
}
namespace {
/**
* CLDR string value (three empty-set symbols)=={2205, 2205, 2205}
* prevents fallback to the parent bundle.
* TODO: combine with other code that handles this marker, use EMPTY_SET constant.
* TODO: maybe move to uresbund.cpp?
*/
UBool isNoInheritanceMarker(const ResourceData *pResData, Resource res) {
uint32_t offset=RES_GET_OFFSET(res);
if (offset == 0) {
// empty string
} else if (res == offset) {
const int32_t *p32=pResData->pRoot+res;
int32_t length=*p32;
const UChar *p=(const UChar *)p32;
return length == 3 && p[2] == 0x2205 && p[3] == 0x2205 && p[4] == 0x2205;
} else if (RES_GET_TYPE(res) == URES_STRING_V2) {
const UChar *p;
if((int32_t)offset<pResData->poolStringIndexLimit) {
p=(const UChar *)pResData->poolBundleStrings+offset;
} else {
p=(const UChar *)pResData->p16BitUnits+(offset-pResData->poolStringIndexLimit);
}
int32_t first=*p;
if (first == 0x2205) { // implicit length
return p[1] == 0x2205 && p[2] == 0x2205 && p[3] == 0;
} else if (first == 0xdc03) { // explicit length 3 (should not occur)
return p[1] == 0x2205 && p[2] == 0x2205 && p[3] == 0x2205;
} else {
// Assume that the string has not been stored with more length units than necessary.
return FALSE;
}
}
return FALSE;
}
int32_t getStringArray(const ResourceData *pResData, const icu::ResourceArray &array,
icu::UnicodeString *dest, int32_t capacity,
UErrorCode &errorCode) {
if(U_FAILURE(errorCode)) {
return 0;
}
if(dest == NULL ? capacity != 0 : capacity < 0) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
int32_t length = array.getSize();
if(length == 0) {
return 0;
}
if(length > capacity) {
errorCode = U_BUFFER_OVERFLOW_ERROR;
return length;
}
for(int32_t i = 0; i < length; ++i) {
int32_t sLength;
// No tracing: handled by the caller
const UChar *s = res_getStringNoTrace(pResData, array.internalGetResource(pResData, i), &sLength);
if(s == NULL) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
return 0;
}
dest[i].setTo(TRUE, s, sLength);
}
return length;
}
} // namespace
U_CAPI const UChar * U_EXPORT2
res_getAlias(const ResourceData *pResData, Resource res, int32_t *pLength) {
const UChar *p;
uint32_t offset=RES_GET_OFFSET(res);
int32_t length;
if(RES_GET_TYPE(res)==URES_ALIAS) {
const int32_t *p32= offset==0 ? &gEmptyString.length : pResData->pRoot+offset;
length=*p32++;
p=(const UChar *)p32;
} else {
p=NULL;
length=0;
}
if(pLength) {
*pLength=length;
}
return p;
}
U_CAPI const uint8_t * U_EXPORT2
res_getBinaryNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength) {
const uint8_t *p;
uint32_t offset=RES_GET_OFFSET(res);
int32_t length;
if(RES_GET_TYPE(res)==URES_BINARY) {
const int32_t *p32= offset==0 ? (const int32_t*)&gEmpty32 : pResData->pRoot+offset;
length=*p32++;
p=(const uint8_t *)p32;
} else {
p=NULL;
length=0;
}
if(pLength) {
*pLength=length;
}
return p;
}
U_CAPI const int32_t * U_EXPORT2
res_getIntVectorNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength) {
const int32_t *p;
uint32_t offset=RES_GET_OFFSET(res);
int32_t length;
if(RES_GET_TYPE(res)==URES_INT_VECTOR) {
p= offset==0 ? (const int32_t *)&gEmpty32 : pResData->pRoot+offset;
length=*p++;
} else {
p=NULL;
length=0;
}
if(pLength) {
*pLength=length;
}
return p;
}
U_CAPI int32_t U_EXPORT2
res_countArrayItems(const ResourceData *pResData, Resource res) {
uint32_t offset=RES_GET_OFFSET(res);
switch(RES_GET_TYPE(res)) {
case URES_STRING:
case URES_STRING_V2:
case URES_BINARY:
case URES_ALIAS:
case URES_INT:
case URES_INT_VECTOR:
return 1;
case URES_ARRAY:
case URES_TABLE32:
return offset==0 ? 0 : *(pResData->pRoot+offset);
case URES_TABLE:
return offset==0 ? 0 : *((const uint16_t *)(pResData->pRoot+offset));
case URES_ARRAY16:
case URES_TABLE16:
return pResData->p16BitUnits[offset];
default:
return 0;
}
}
U_NAMESPACE_BEGIN
ResourceDataValue::~ResourceDataValue() {}
UResType ResourceDataValue::getType() const {
return res_getPublicType(res);
}
const UChar *ResourceDataValue::getString(int32_t &length, UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return NULL;
}
const UChar *s = res_getString(fTraceInfo, &getData(), res, &length);
if(s == NULL) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return s;
}
const UChar *ResourceDataValue::getAliasString(int32_t &length, UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return NULL;
}
const UChar *s = res_getAlias(&getData(), res, &length);
if(s == NULL) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return s;
}
int32_t ResourceDataValue::getInt(UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return 0;
}
if(RES_GET_TYPE(res) != URES_INT) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return res_getInt(fTraceInfo, res);
}
uint32_t ResourceDataValue::getUInt(UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return 0;
}
if(RES_GET_TYPE(res) != URES_INT) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return res_getUInt(fTraceInfo, res);
}
const int32_t *ResourceDataValue::getIntVector(int32_t &length, UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return NULL;
}
const int32_t *iv = res_getIntVector(fTraceInfo, &getData(), res, &length);
if(iv == NULL) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return iv;
}
const uint8_t *ResourceDataValue::getBinary(int32_t &length, UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return NULL;
}
const uint8_t *b = res_getBinary(fTraceInfo, &getData(), res, &length);
if(b == NULL) {
errorCode = U_RESOURCE_TYPE_MISMATCH;
}
return b;
}
ResourceArray ResourceDataValue::getArray(UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return ResourceArray();
}
const uint16_t *items16 = NULL;
const Resource *items32 = NULL;
uint32_t offset=RES_GET_OFFSET(res);
int32_t length = 0;
switch(RES_GET_TYPE(res)) {
case URES_ARRAY:
if (offset!=0) { // empty if offset==0
items32 = (const Resource *)getData().pRoot+offset;
length = *items32++;
}
break;
case URES_ARRAY16:
items16 = getData().p16BitUnits+offset;
length = *items16++;
break;
default:
errorCode = U_RESOURCE_TYPE_MISMATCH;
return ResourceArray();
}
return ResourceArray(items16, items32, length, fTraceInfo);
}
ResourceTable ResourceDataValue::getTable(UErrorCode &errorCode) const {
if(U_FAILURE(errorCode)) {
return ResourceTable();
}
const uint16_t *keys16 = NULL;
const int32_t *keys32 = NULL;
const uint16_t *items16 = NULL;
const Resource *items32 = NULL;
uint32_t offset = RES_GET_OFFSET(res);
int32_t length = 0;
switch(RES_GET_TYPE(res)) {
case URES_TABLE:
if (offset != 0) { // empty if offset==0
keys16 = (const uint16_t *)(getData().pRoot+offset);
length = *keys16++;
items32 = (const Resource *)(keys16+length+(~length&1));
}
break;
case URES_TABLE16:
keys16 = getData().p16BitUnits+offset;
length = *keys16++;
items16 = keys16 + length;
break;
case URES_TABLE32:
if (offset != 0) { // empty if offset==0
keys32 = getData().pRoot+offset;
length = *keys32++;
items32 = (const Resource *)keys32 + length;
}
break;
default:
errorCode = U_RESOURCE_TYPE_MISMATCH;
return ResourceTable();
}
return ResourceTable(keys16, keys32, items16, items32, length, fTraceInfo);
}
UBool ResourceDataValue::isNoInheritanceMarker() const {
return ::isNoInheritanceMarker(&getData(), res);
}
int32_t ResourceDataValue::getStringArray(UnicodeString *dest, int32_t capacity,
UErrorCode &errorCode) const {
return ::getStringArray(&getData(), getArray(errorCode), dest, capacity, errorCode);
}
int32_t ResourceDataValue::getStringArrayOrStringAsArray(UnicodeString *dest, int32_t capacity,
UErrorCode &errorCode) const {
if(URES_IS_ARRAY(res)) {
return ::getStringArray(&getData(), getArray(errorCode), dest, capacity, errorCode);
}
if(U_FAILURE(errorCode)) {
return 0;
}
if(dest == NULL ? capacity != 0 : capacity < 0) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
if(capacity < 1) {
errorCode = U_BUFFER_OVERFLOW_ERROR;
return 1;
}
int32_t sLength;
const UChar *s = res_getString(fTraceInfo, &getData(), res, &sLength);
if(s != NULL) {
dest[0].setTo(TRUE, s, sLength);
return 1;
}
errorCode = U_RESOURCE_TYPE_MISMATCH;
return 0;
}
UnicodeString ResourceDataValue::getStringOrFirstOfArray(UErrorCode &errorCode) const {
UnicodeString us;
if(U_FAILURE(errorCode)) {
return us;
}
int32_t sLength;
const UChar *s = res_getString(fTraceInfo, &getData(), res, &sLength);
if(s != NULL) {
us.setTo(TRUE, s, sLength);
return us;
}
ResourceArray array = getArray(errorCode);
if(U_FAILURE(errorCode)) {
return us;
}
if(array.getSize() > 0) {
// Tracing is already performed above (unimportant for trace that this is an array)
s = res_getStringNoTrace(&getData(), array.internalGetResource(&getData(), 0), &sLength);
if(s != NULL) {
us.setTo(TRUE, s, sLength);
return us;
}
}
errorCode = U_RESOURCE_TYPE_MISMATCH;
return us;
}
U_NAMESPACE_END
static Resource
makeResourceFrom16(const ResourceData *pResData, int32_t res16) {
if(res16<pResData->poolStringIndex16Limit) {
// Pool string, nothing to do.
} else {
// Local string, adjust the 16-bit offset to a regular one,
// with a larger pool string index limit.
res16=res16-pResData->poolStringIndex16Limit+pResData->poolStringIndexLimit;
}
return URES_MAKE_RESOURCE(URES_STRING_V2, res16);
}
U_CAPI Resource U_EXPORT2
res_getTableItemByKey(const ResourceData *pResData, Resource table,
int32_t *indexR, const char **key) {
uint32_t offset=RES_GET_OFFSET(table);
int32_t length;
int32_t idx;
if(key == NULL || *key == NULL) {
return RES_BOGUS;
}
switch(RES_GET_TYPE(table)) {
case URES_TABLE: {
if (offset!=0) { /* empty if offset==0 */
const uint16_t *p= (const uint16_t *)(pResData->pRoot+offset);
length=*p++;
*indexR=idx=_res_findTableItem(pResData, p, length, *key, key);
if(idx>=0) {
const Resource *p32=(const Resource *)(p+length+(~length&1));
return p32[idx];
}
}
break;
}
case URES_TABLE16: {
const uint16_t *p=pResData->p16BitUnits+offset;
length=*p++;
*indexR=idx=_res_findTableItem(pResData, p, length, *key, key);
if(idx>=0) {
return makeResourceFrom16(pResData, p[length+idx]);
}
break;
}
case URES_TABLE32: {
if (offset!=0) { /* empty if offset==0 */
const int32_t *p= pResData->pRoot+offset;
length=*p++;
*indexR=idx=_res_findTable32Item(pResData, p, length, *key, key);
if(idx>=0) {
return (Resource)p[length+idx];
}
}
break;
}
default:
break;
}
return RES_BOGUS;
}
U_CAPI Resource U_EXPORT2
res_getTableItemByIndex(const ResourceData *pResData, Resource table,
int32_t indexR, const char **key) {
uint32_t offset=RES_GET_OFFSET(table);
int32_t length;
if (indexR < 0) {
return RES_BOGUS;
}
switch(RES_GET_TYPE(table)) {
case URES_TABLE: {
if (offset != 0) { /* empty if offset==0 */
const uint16_t *p= (const uint16_t *)(pResData->pRoot+offset);
length=*p++;
if(indexR<length) {
const Resource *p32=(const Resource *)(p+length+(~length&1));
if(key!=NULL) {
*key=RES_GET_KEY16(pResData, p[indexR]);
}
return p32[indexR];
}
}
break;
}
case URES_TABLE16: {
const uint16_t *p=pResData->p16BitUnits+offset;
length=*p++;
if(indexR<length) {
if(key!=NULL) {
*key=RES_GET_KEY16(pResData, p[indexR]);
}
return makeResourceFrom16(pResData, p[length+indexR]);
}
break;
}
case URES_TABLE32: {
if (offset != 0) { /* empty if offset==0 */
const int32_t *p= pResData->pRoot+offset;
length=*p++;
if(indexR<length) {
if(key!=NULL) {
*key=RES_GET_KEY32(pResData, p[indexR]);
}
return (Resource)p[length+indexR];
}
}
break;
}
default:
break;
}
return RES_BOGUS;
}
U_CAPI Resource U_EXPORT2
res_getResource(const ResourceData *pResData, const char *key) {
const char *realKey=key;
int32_t idx;
return res_getTableItemByKey(pResData, pResData->rootRes, &idx, &realKey);
}
UBool icu::ResourceTable::getKeyAndValue(int32_t i,
const char *&key, icu::ResourceValue &value) const {
if(0 <= i && i < length) {
icu::ResourceDataValue &rdValue = static_cast<icu::ResourceDataValue &>(value);
if (keys16 != nullptr) {
key = RES_GET_KEY16(&rdValue.getData(), keys16[i]);
} else {
key = RES_GET_KEY32(&rdValue.getData(), keys32[i]);
}
Resource res;
if (items16 != nullptr) {
res = makeResourceFrom16(&rdValue.getData(), items16[i]);
} else {
res = items32[i];
}
// Note: the ResourceTracer keeps a reference to the field of this
// ResourceTable. This is OK because the ResourceTable should remain
// alive for the duration that fields are being read from it
// (including nested fields).
rdValue.setResource(res, ResourceTracer(fTraceInfo, key));
return TRUE;
}
return FALSE;
}
UBool icu::ResourceTable::findValue(const char *key, ResourceValue &value) const {
icu::ResourceDataValue &rdValue = static_cast<icu::ResourceDataValue &>(value);
const char *realKey = nullptr;
int32_t i;
if (keys16 != nullptr) {
i = _res_findTableItem(&rdValue.getData(), keys16, length, key, &realKey);
} else {
i = _res_findTable32Item(&rdValue.getData(), keys32, length, key, &realKey);
}
if (i >= 0) {
Resource res;
if (items16 != nullptr) {
res = makeResourceFrom16(&rdValue.getData(), items16[i]);
} else {
res = items32[i];
}
// Same note about lifetime as in getKeyAndValue().
rdValue.setResource(res, ResourceTracer(fTraceInfo, key));
return TRUE;
}
return FALSE;
}
U_CAPI Resource U_EXPORT2
res_getArrayItem(const ResourceData *pResData, Resource array, int32_t indexR) {
uint32_t offset=RES_GET_OFFSET(array);
if (indexR < 0) {
return RES_BOGUS;
}
switch(RES_GET_TYPE(array)) {
case URES_ARRAY: {
if (offset!=0) { /* empty if offset==0 */
const int32_t *p= pResData->pRoot+offset;
if(indexR<*p) {
return (Resource)p[1+indexR];
}
}
break;
}
case URES_ARRAY16: {
const uint16_t *p=pResData->p16BitUnits+offset;
if(indexR<*p) {
return makeResourceFrom16(pResData, p[1+indexR]);
}
break;
}
default:
break;
}
return RES_BOGUS;
}
uint32_t icu::ResourceArray::internalGetResource(const ResourceData *pResData, int32_t i) const {
if (items16 != NULL) {
return makeResourceFrom16(pResData, items16[i]);
} else {
return items32[i];
}
}
UBool icu::ResourceArray::getValue(int32_t i, icu::ResourceValue &value) const {
if(0 <= i && i < length) {
icu::ResourceDataValue &rdValue = static_cast<icu::ResourceDataValue &>(value);
// Note: the ResourceTracer keeps a reference to the field of this
// ResourceArray. This is OK because the ResourceArray should remain
// alive for the duration that fields are being read from it
// (including nested fields).
rdValue.setResource(
internalGetResource(&rdValue.getData(), i),
ResourceTracer(fTraceInfo, i));
return TRUE;
}
return FALSE;
}
U_CFUNC Resource
res_findResource(const ResourceData *pResData, Resource r, char** path, const char** key) {
char *pathP = *path, *nextSepP = *path;
char *closeIndex = NULL;
Resource t1 = r;
Resource t2;
int32_t indexR = 0;
UResType type = (UResType)RES_GET_TYPE(t1);
/* if you come in with an empty path, you'll be getting back the same resource */
if(!uprv_strlen(pathP)) {
return r;
}
/* one needs to have an aggregate resource in order to search in it */
if(!URES_IS_CONTAINER(type)) {
return RES_BOGUS;
}
while(nextSepP && *pathP && t1 != RES_BOGUS && URES_IS_CONTAINER(type)) {
/* Iteration stops if: the path has been consumed, we found a non-existing
* resource (t1 == RES_BOGUS) or we found a scalar resource (including alias)
*/
nextSepP = uprv_strchr(pathP, RES_PATH_SEPARATOR);
/* if there are more separators, terminate string
* and set path to the remaining part of the string
*/
if(nextSepP != NULL) {
if(nextSepP == pathP) {
// Empty key string.
return RES_BOGUS;
}
*nextSepP = 0; /* overwrite the separator with a NUL to terminate the key */
*path = nextSepP+1;
} else {
*path = uprv_strchr(pathP, 0);
}
/* if the resource is a table */
/* try the key based access */
if(URES_IS_TABLE(type)) {
*key = pathP;
t2 = res_getTableItemByKey(pResData, t1, &indexR, key);
if(t2 == RES_BOGUS) {
/* if we fail to get the resource by key, maybe we got an index */
indexR = uprv_strtol(pathP, &closeIndex, 10);
if(indexR >= 0 && *closeIndex == 0 && (*pathP != '0' || closeIndex - pathP == 1)) {
/* if we indeed have an index, try to get the item by index */
t2 = res_getTableItemByIndex(pResData, t1, indexR, key);
} // else t2 is already RES_BOGUS
}
} else if(URES_IS_ARRAY(type)) {
indexR = uprv_strtol(pathP, &closeIndex, 10);
if(indexR >= 0 && *closeIndex == 0) {
t2 = res_getArrayItem(pResData, t1, indexR);
} else {
t2 = RES_BOGUS; /* have an array, but don't have a valid index */
}
*key = NULL;
} else { /* can't do much here, except setting t2 to bogus */
t2 = RES_BOGUS;
}
t1 = t2;
type = (UResType)RES_GET_TYPE(t1);
/* position pathP to next resource key/index */
pathP = *path;
}
return t1;
}
/* resource bundle swapping ------------------------------------------------- */
/*
* Need to always enumerate the entire item tree,
* track the lowest address of any item to use as the limit for char keys[],
* track the highest address of any item to return the size of the data.
*
* We should have thought of storing those in the data...
* It is possible to extend the data structure by putting additional values
* in places that are inaccessible by ordinary enumeration of the item tree.
* For example, additional integers could be stored at the beginning or
* end of the key strings; this could be indicated by a minor version number,
* and the data swapping would have to know about these values.
*
* The data structure does not forbid keys to be shared, so we must swap
* all keys once instead of each key when it is referenced.
*
* These swapping functions assume that a resource bundle always has a length
* that is a multiple of 4 bytes.
* Currently, this is trivially true because genrb writes bundle tree leaves
* physically first, before their branches, so that the root table with its
* array of resource items (uint32_t values) is always last.
*/
/* definitions for table sorting ------------------------ */
/*
* row of a temporary array
*
* gets platform-endian key string indexes and sorting indexes;
* after sorting this array by keys, the actual key/value arrays are permutated
* according to the sorting indexes
*/
typedef struct Row {
int32_t keyIndex, sortIndex;
} Row;
static int32_t U_CALLCONV
ures_compareRows(const void *context, const void *left, const void *right) {
const char *keyChars=(const char *)context;
return (int32_t)uprv_strcmp(keyChars+((const Row *)left)->keyIndex,
keyChars+((const Row *)right)->keyIndex);
}
typedef struct TempTable {
const char *keyChars;
Row *rows;
int32_t *resort;
uint32_t *resFlags;
int32_t localKeyLimit;
uint8_t majorFormatVersion;
} TempTable;
enum {
STACK_ROW_CAPACITY=200
};
/* The table item key string is not locally available. */
static const char *const gUnknownKey="";
/* resource table key for collation binaries: "%%CollationBin" */
static const UChar gCollationBinKey[]={
0x25, 0x25,
0x43, 0x6f, 0x6c, 0x6c, 0x61, 0x74, 0x69, 0x6f, 0x6e,
0x42, 0x69, 0x6e,
0
};
/*
* swap one resource item
*/
static void
ures_swapResource(const UDataSwapper *ds,
const Resource *inBundle, Resource *outBundle,
Resource res, /* caller swaps res itself */
const char *key,
TempTable *pTempTable,
UErrorCode *pErrorCode) {
const Resource *p;
Resource *q;
int32_t offset, count;
switch(RES_GET_TYPE(res)) {
case URES_TABLE16:
case URES_STRING_V2:
case URES_INT:
case URES_ARRAY16:
/* integer, or points to 16-bit units, nothing to do here */
return;
default:
break;
}
/* all other types use an offset to point to their data */
offset=(int32_t)RES_GET_OFFSET(res);
if(offset==0) {
/* special offset indicating an empty item */
return;
}
if(pTempTable->resFlags[offset>>5]&((uint32_t)1<<(offset&0x1f))) {
/* we already swapped this resource item */
return;
} else {
/* mark it as swapped now */
pTempTable->resFlags[offset>>5]|=((uint32_t)1<<(offset&0x1f));
}
p=inBundle+offset;
q=outBundle+offset;
switch(RES_GET_TYPE(res)) {
case URES_ALIAS:
/* physically same value layout as string, fall through */
U_FALLTHROUGH;
case URES_STRING:
count=udata_readInt32(ds, (int32_t)*p);
/* swap length */
ds->swapArray32(ds, p, 4, q, pErrorCode);
/* swap each UChar (the terminating NUL would not change) */
ds->swapArray16(ds, p+1, 2*count, q+1, pErrorCode);
break;
case URES_BINARY:
count=udata_readInt32(ds, (int32_t)*p);
/* swap length */
ds->swapArray32(ds, p, 4, q, pErrorCode);
/* no need to swap or copy bytes - ures_swap() copied them all */
/* swap known formats */
#if !UCONFIG_NO_COLLATION
if( key!=NULL && /* the binary is in a table */
(key!=gUnknownKey ?
/* its table key string is "%%CollationBin" */
0==ds->compareInvChars(ds, key, -1,
gCollationBinKey, UPRV_LENGTHOF(gCollationBinKey)-1) :
/* its table key string is unknown but it looks like a collation binary */
ucol_looksLikeCollationBinary(ds, p+1, count))
) {
ucol_swap(ds, p+1, count, q+1, pErrorCode);
}
#endif
break;
case URES_TABLE:
case URES_TABLE32:
{
const uint16_t *pKey16;
uint16_t *qKey16;
const int32_t *pKey32;
int32_t *qKey32;
Resource item;
int32_t i, oldIndex;
if(RES_GET_TYPE(res)==URES_TABLE) {
/* get table item count */
pKey16=(const uint16_t *)p;
qKey16=(uint16_t *)q;
count=ds->readUInt16(*pKey16);
pKey32=qKey32=NULL;
/* swap count */
ds->swapArray16(ds, pKey16++, 2, qKey16++, pErrorCode);
offset+=((1+count)+1)/2;
} else {
/* get table item count */
pKey32=(const int32_t *)p;
qKey32=(int32_t *)q;
count=udata_readInt32(ds, *pKey32);
pKey16=qKey16=NULL;
/* swap count */
ds->swapArray32(ds, pKey32++, 4, qKey32++, pErrorCode);
offset+=1+count;
}
if(count==0) {
break;
}
p=inBundle+offset; /* pointer to table resources */
q=outBundle+offset;
/* recurse */
for(i=0; i<count; ++i) {
const char *itemKey=gUnknownKey;
if(pKey16!=NULL) {
int32_t keyOffset=ds->readUInt16(pKey16[i]);
if(keyOffset<pTempTable->localKeyLimit) {
itemKey=(const char *)outBundle+keyOffset;
}
} else {
int32_t keyOffset=udata_readInt32(ds, pKey32[i]);
if(keyOffset>=0) {
itemKey=(const char *)outBundle+keyOffset;
}
}
item=ds->readUInt32(p[i]);
ures_swapResource(ds, inBundle, outBundle, item, itemKey, pTempTable, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swapResource(table res=%08x)[%d].recurse(%08x) failed\n",
res, i, item);
return;
}
}
if(pTempTable->majorFormatVersion>1 || ds->inCharset==ds->outCharset) {
/* no need to sort, just swap the offset/value arrays */
if(pKey16!=NULL) {
ds->swapArray16(ds, pKey16, count*2, qKey16, pErrorCode);
ds->swapArray32(ds, p, count*4, q, pErrorCode);
} else {
/* swap key offsets and items as one array */
ds->swapArray32(ds, pKey32, count*2*4, qKey32, pErrorCode);
}
break;
}
/*
* We need to sort tables by outCharset key strings because they
* sort differently for different charset families.
* ures_swap() already set pTempTable->keyChars appropriately.
* First we set up a temporary table with the key indexes and
* sorting indexes and sort that.
* Then we permutate and copy/swap the actual values.
*/
if(pKey16!=NULL) {
for(i=0; i<count; ++i) {
pTempTable->rows[i].keyIndex=ds->readUInt16(pKey16[i]);
pTempTable->rows[i].sortIndex=i;
}
} else {
for(i=0; i<count; ++i) {
pTempTable->rows[i].keyIndex=udata_readInt32(ds, pKey32[i]);
pTempTable->rows[i].sortIndex=i;
}
}
uprv_sortArray(pTempTable->rows, count, sizeof(Row),
ures_compareRows, pTempTable->keyChars,
FALSE, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swapResource(table res=%08x).uprv_sortArray(%d items) failed\n",
res, count);
return;
}
/*
* copy/swap/permutate items
*
* If we swap in-place, then the permutation must use another
* temporary array (pTempTable->resort)
* before the results are copied to the outBundle.
*/
/* keys */
if(pKey16!=NULL) {
uint16_t *rKey16;
if(pKey16!=qKey16) {
rKey16=qKey16;
} else {
rKey16=(uint16_t *)pTempTable->resort;
}
for(i=0; i<count; ++i) {
oldIndex=pTempTable->rows[i].sortIndex;
ds->swapArray16(ds, pKey16+oldIndex, 2, rKey16+i, pErrorCode);
}
if(qKey16!=rKey16) {
uprv_memcpy(qKey16, rKey16, 2*count);
}
} else {
int32_t *rKey32;
if(pKey32!=qKey32) {
rKey32=qKey32;
} else {
rKey32=pTempTable->resort;
}
for(i=0; i<count; ++i) {
oldIndex=pTempTable->rows[i].sortIndex;
ds->swapArray32(ds, pKey32+oldIndex, 4, rKey32+i, pErrorCode);
}
if(qKey32!=rKey32) {
uprv_memcpy(qKey32, rKey32, 4*count);
}
}
/* resources */
{
Resource *r;
if(p!=q) {
r=q;
} else {
r=(Resource *)pTempTable->resort;
}
for(i=0; i<count; ++i) {
oldIndex=pTempTable->rows[i].sortIndex;
ds->swapArray32(ds, p+oldIndex, 4, r+i, pErrorCode);
}
if(q!=r) {
uprv_memcpy(q, r, 4*count);
}
}
}
break;
case URES_ARRAY:
{
Resource item;
int32_t i;
count=udata_readInt32(ds, (int32_t)*p);
/* swap length */
ds->swapArray32(ds, p++, 4, q++, pErrorCode);
/* recurse */
for(i=0; i<count; ++i) {
item=ds->readUInt32(p[i]);
ures_swapResource(ds, inBundle, outBundle, item, NULL, pTempTable, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swapResource(array res=%08x)[%d].recurse(%08x) failed\n",
res, i, item);
return;
}
}
/* swap items */
ds->swapArray32(ds, p, 4*count, q, pErrorCode);
}
break;
case URES_INT_VECTOR:
count=udata_readInt32(ds, (int32_t)*p);
/* swap length and each integer */
ds->swapArray32(ds, p, 4*(1+count), q, pErrorCode);
break;
default:
/* also catches RES_BOGUS */
*pErrorCode=U_UNSUPPORTED_ERROR;
break;
}
}
U_CAPI int32_t U_EXPORT2
ures_swap(const UDataSwapper *ds,
const void *inData, int32_t length, void *outData,
UErrorCode *pErrorCode) {
const UDataInfo *pInfo;
const Resource *inBundle;
Resource rootRes;
int32_t headerSize, maxTableLength;
Row rows[STACK_ROW_CAPACITY];
int32_t resort[STACK_ROW_CAPACITY];
TempTable tempTable;
const int32_t *inIndexes;
/* the following integers count Resource item offsets (4 bytes each), not bytes */
int32_t bundleLength, indexLength, keysBottom, keysTop, resBottom, top;
/* udata_swapDataHeader checks the arguments */
headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode);
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
return 0;
}
/* check data format and format version */
pInfo=(const UDataInfo *)((const char *)inData+4);
if(!(
pInfo->dataFormat[0]==0x52 && /* dataFormat="ResB" */
pInfo->dataFormat[1]==0x65 &&
pInfo->dataFormat[2]==0x73 &&
pInfo->dataFormat[3]==0x42 &&
/* formatVersion 1.1+ or 2.x or 3.x */
((pInfo->formatVersion[0]==1 && pInfo->formatVersion[1]>=1) ||
pInfo->formatVersion[0]==2 || pInfo->formatVersion[0]==3)
)) {
udata_printError(ds, "ures_swap(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not a resource bundle\n",
pInfo->dataFormat[0], pInfo->dataFormat[1],
pInfo->dataFormat[2], pInfo->dataFormat[3],
pInfo->formatVersion[0], pInfo->formatVersion[1]);
*pErrorCode=U_UNSUPPORTED_ERROR;
return 0;
}
tempTable.majorFormatVersion=pInfo->formatVersion[0];
/* a resource bundle must contain at least one resource item */
if(length<0) {
bundleLength=-1;
} else {
bundleLength=(length-headerSize)/4;
/* formatVersion 1.1 must have a root item and at least 5 indexes */
if(bundleLength<(1+5)) {
udata_printError(ds, "ures_swap(): too few bytes (%d after header) for a resource bundle\n",
length-headerSize);
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
}
inBundle=(const Resource *)((const char *)inData+headerSize);
rootRes=ds->readUInt32(*inBundle);
/* formatVersion 1.1 adds the indexes[] array */
inIndexes=(const int32_t *)(inBundle+1);
indexLength=udata_readInt32(ds, inIndexes[URES_INDEX_LENGTH])&0xff;
if(indexLength<=URES_INDEX_MAX_TABLE_LENGTH) {
udata_printError(ds, "ures_swap(): too few indexes for a 1.1+ resource bundle\n");
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
keysBottom=1+indexLength;
keysTop=udata_readInt32(ds, inIndexes[URES_INDEX_KEYS_TOP]);
if(indexLength>URES_INDEX_16BIT_TOP) {
resBottom=udata_readInt32(ds, inIndexes[URES_INDEX_16BIT_TOP]);
} else {
resBottom=keysTop;
}
top=udata_readInt32(ds, inIndexes[URES_INDEX_BUNDLE_TOP]);
maxTableLength=udata_readInt32(ds, inIndexes[URES_INDEX_MAX_TABLE_LENGTH]);
if(0<=bundleLength && bundleLength<top) {
udata_printError(ds, "ures_swap(): resource top %d exceeds bundle length %d\n",
top, bundleLength);
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
if(keysTop>(1+indexLength)) {
tempTable.localKeyLimit=keysTop<<2;
} else {
tempTable.localKeyLimit=0;
}
if(length>=0) {
Resource *outBundle=(Resource *)((char *)outData+headerSize);
/* track which resources we have already swapped */
uint32_t stackResFlags[STACK_ROW_CAPACITY];
int32_t resFlagsLength;
/*
* We need one bit per 4 resource bundle bytes so that we can track
* every possible Resource for whether we have swapped it already.
* Multiple Resource words can refer to the same bundle offsets
* for sharing identical values.
* We could optimize this by allocating only for locations above
* where Resource values are stored (above keys & strings).
*/
resFlagsLength=(length+31)>>5; /* number of bytes needed */
resFlagsLength=(resFlagsLength+3)&~3; /* multiple of 4 bytes for uint32_t */
if(resFlagsLength<=(int32_t)sizeof(stackResFlags)) {
tempTable.resFlags=stackResFlags;
} else {
tempTable.resFlags=(uint32_t *)uprv_malloc(resFlagsLength);
if(tempTable.resFlags==NULL) {
udata_printError(ds, "ures_swap(): unable to allocate memory for tracking resources\n");
*pErrorCode=U_MEMORY_ALLOCATION_ERROR;
return 0;
}
}
uprv_memset(tempTable.resFlags, 0, resFlagsLength);
/* copy the bundle for binary and inaccessible data */
if(inData!=outData) {
uprv_memcpy(outBundle, inBundle, 4*top);
}
/* swap the key strings, but not the padding bytes (0xaa) after the last string and its NUL */
udata_swapInvStringBlock(ds, inBundle+keysBottom, 4*(keysTop-keysBottom),
outBundle+keysBottom, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swap().udata_swapInvStringBlock(keys[%d]) failed\n", 4*(keysTop-keysBottom));
return 0;
}
/* swap the 16-bit units (strings, table16, array16) */
if(keysTop<resBottom) {
ds->swapArray16(ds, inBundle+keysTop, (resBottom-keysTop)*4, outBundle+keysTop, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swap().swapArray16(16-bit units[%d]) failed\n", 2*(resBottom-keysTop));
return 0;
}
}
/* allocate the temporary table for sorting resource tables */
tempTable.keyChars=(const char *)outBundle; /* sort by outCharset */
if(tempTable.majorFormatVersion>1 || maxTableLength<=STACK_ROW_CAPACITY) {
tempTable.rows=rows;
tempTable.resort=resort;
} else {
tempTable.rows=(Row *)uprv_malloc(maxTableLength*sizeof(Row)+maxTableLength*4);
if(tempTable.rows==NULL) {
udata_printError(ds, "ures_swap(): unable to allocate memory for sorting tables (max length: %d)\n",
maxTableLength);
*pErrorCode=U_MEMORY_ALLOCATION_ERROR;
if(tempTable.resFlags!=stackResFlags) {
uprv_free(tempTable.resFlags);
}
return 0;
}
tempTable.resort=(int32_t *)(tempTable.rows+maxTableLength);
}
/* swap the resources */
ures_swapResource(ds, inBundle, outBundle, rootRes, NULL, &tempTable, pErrorCode);
if(U_FAILURE(*pErrorCode)) {
udata_printError(ds, "ures_swapResource(root res=%08x) failed\n",
rootRes);
}
if(tempTable.rows!=rows) {
uprv_free(tempTable.rows);
}
if(tempTable.resFlags!=stackResFlags) {
uprv_free(tempTable.resFlags);
}
/* swap the root resource and indexes */
ds->swapArray32(ds, inBundle, keysBottom*4, outBundle, pErrorCode);
}
return headerSize+4*top;
}
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