UConverter *
ucnv_createAlgorithmicConverter(UConverter *myUConverter,
UConverterType type,
const char *locale, uint32_t options,
UErrorCode *err) {
UConverter *cnv;
const UConverterSharedData *sharedData;
UBool isAlgorithmicConverter;
UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN_ALGORITHMIC);
UTRACE_DATA1(UTRACE_OPEN_CLOSE, "open algorithmic converter type %d", (int32_t)type);
if(type<0 || UCNV_NUMBER_OF_SUPPORTED_CONVERTER_TYPES<=type) {
*err = U_ILLEGAL_ARGUMENT_ERROR;
UTRACE_EXIT_STATUS(U_ILLEGAL_ARGUMENT_ERROR);
return NULL;
}
sharedData = converterData[type];
umtx_lock(&cnvCacheMutex);
isAlgorithmicConverter = (UBool)(sharedData == NULL || sharedData->referenceCounter != ~0);
umtx_unlock(&cnvCacheMutex);
if (isAlgorithmicConverter) {
/* not a valid type, or not an algorithmic converter */
*err = U_ILLEGAL_ARGUMENT_ERROR;
UTRACE_EXIT_STATUS(U_ILLEGAL_ARGUMENT_ERROR);
return NULL;
}
cnv = ucnv_createConverterFromSharedData(myUConverter, (UConverterSharedData *)sharedData, "",
locale != NULL ? locale : "", options, err);
UTRACE_EXIT_PTR_STATUS(cnv, *err);
return cnv;
}
UConverter *
ucnv_createConverter(UConverter *myUConverter, const char *converterName, UErrorCode * err)
{
UConverterLookupData stackLookup;
UConverterSharedData *mySharedConverterData;
UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN);
if(U_SUCCESS(*err)) {
UTRACE_DATA1(UTRACE_OPEN_CLOSE, "open converter %s", converterName);
mySharedConverterData = ucnv_loadSharedData(converterName, &stackLookup, err);
if(U_SUCCESS(*err)) {
myUConverter = ucnv_createConverterFromSharedData(
myUConverter, mySharedConverterData,
stackLookup.realName, stackLookup.locale, stackLookup.options,
err);
if(U_SUCCESS(*err)) {
UTRACE_EXIT_PTR_STATUS(myUConverter, *err);
return myUConverter;
} else {
ucnv_unloadSharedDataIfReady(mySharedConverterData);
}
}
}
/* exit with error */
UTRACE_EXIT_STATUS(*err);
return NULL;
}
UConverter*
ucnv_createConverterFromPackage(const char *packageName, const char *converterName, UErrorCode * err)
{
char cnvName[UCNV_MAX_CONVERTER_NAME_LENGTH], locale[ULOC_FULLNAME_CAPACITY];
UConverter *myUConverter;
UConverterSharedData *mySharedConverterData;
UConverterLoadArgs args={ 0 };
UTRACE_ENTRY_OC(UTRACE_UCNV_OPEN_PACKAGE);
if(U_FAILURE(*err)) {
UTRACE_EXIT_STATUS(*err);
return NULL;
}
UTRACE_DATA2(UTRACE_OPEN_CLOSE, "open converter %s from package %s", converterName, packageName);
args.size=sizeof(UConverterLoadArgs);
args.nestedLoads=1;
args.pkg=packageName;
/* first, get the options out of the converterName string */
parseConverterOptions(converterName, cnvName, locale, &args.options, err);
if (U_FAILURE(*err)) {
/* Very bad name used. */
UTRACE_EXIT_STATUS(*err);
return NULL;
}
args.name=cnvName;
/* open the data, unflatten the shared structure */
mySharedConverterData = createConverterFromFile(&args, err);
if (U_FAILURE(*err)) {
UTRACE_EXIT_STATUS(*err);
return NULL;
}
/* create the actual converter */
myUConverter = ucnv_createConverterFromSharedData(NULL, mySharedConverterData, cnvName, locale, args.options, err);
if (U_FAILURE(*err)) {
ucnv_close(myUConverter);
UTRACE_EXIT_STATUS(*err);
return NULL;
}
UTRACE_EXIT_PTR_STATUS(myUConverter, *err);
return myUConverter;
}
U_CAPI UCollator*
ucol_open(const char *loc,
UErrorCode *status)
{
U_NAMESPACE_USE
UTRACE_ENTRY_OC(UTRACE_UCOL_OPEN);
UTRACE_DATA1(UTRACE_INFO, "locale = \"%s\"", loc);
UCollator *result = NULL;
u_init(status);
#if !UCONFIG_NO_SERVICE
result = Collator::createUCollator(loc, status);
if (result == NULL)
#endif
{
result = ucol_open_internal(loc, status);
}
UTRACE_EXIT_PTR_STATUS(result, *status);
return result;
}
/*Takes an alias name gets an actual converter file name
*goes to disk and opens it.
*allocates the memory and returns a new UConverter object
*/
static UConverterSharedData *createConverterFromFile(UConverterLoadArgs *pArgs, UErrorCode * err)
{
UDataMemory *data;
UConverterSharedData *sharedData;
UTRACE_ENTRY_OC(UTRACE_UCNV_LOAD);
if (err == NULL || U_FAILURE (*err)) {
UTRACE_EXIT_STATUS(*err);
return NULL;
}
UTRACE_DATA2(UTRACE_OPEN_CLOSE, "load converter %s from package %s", pArgs->name, pArgs->pkg);
data = udata_openChoice(pArgs->pkg, DATA_TYPE, pArgs->name, isCnvAcceptable, NULL, err);
if(U_FAILURE(*err))
{
UTRACE_EXIT_STATUS(*err);
return NULL;
}
sharedData = ucnv_data_unFlattenClone(pArgs, data, err);
if(U_FAILURE(*err))
{
udata_close(data);
UTRACE_EXIT_STATUS(*err);
return NULL;
}
/*
* TODO Store pkg in a field in the shared data so that delta-only converters
* can load base converters from the same package.
* If the pkg name is longer than the field, then either do not load the converter
* in the first place, or just set the pkg field to "".
*/
UTRACE_EXIT_PTR_STATUS(sharedData, *err);
return sharedData;
}
U_CAPI UCollator* U_EXPORT2
ucol_openFromShortString( const char *definition,
UBool forceDefaults,
UParseError *parseError,
UErrorCode *status)
{
UTRACE_ENTRY_OC(UTRACE_UCOL_OPEN_FROM_SHORT_STRING);
UTRACE_DATA1(UTRACE_INFO, "short string = \"%s\"", definition);
if(U_FAILURE(*status)) return 0;
UParseError internalParseError;
if(!parseError) {
parseError = &internalParseError;
}
parseError->line = 0;
parseError->offset = 0;
parseError->preContext[0] = 0;
parseError->postContext[0] = 0;
// first we want to pick stuff out of short string.
// we'll end up with an UCA version, locale and a bunch of
// settings
// analyse the string in order to get everything we need.
const char *string = definition;
CollatorSpec s;
ucol_sit_initCollatorSpecs(&s);
string = ucol_sit_readSpecs(&s, definition, parseError, status);
ucol_sit_calculateWholeLocale(&s);
char buffer[internalBufferSize];
uprv_memset(buffer, 0, internalBufferSize);
uloc_canonicalize(s.locale, buffer, internalBufferSize, status);
UCollator *result = ucol_open(buffer, status);
int32_t i = 0;
for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
if(s.options[i] != UCOL_DEFAULT) {
if(forceDefaults || ucol_getAttribute(result, (UColAttribute)i, status) != s.options[i]) {
ucol_setAttribute(result, (UColAttribute)i, s.options[i], status);
}
if(U_FAILURE(*status)) {
parseError->offset = (int32_t)(string - definition);
ucol_close(result);
return NULL;
}
}
}
if(s.variableTopSet) {
if(s.variableTopString[0]) {
ucol_setVariableTop(result, s.variableTopString, s.variableTopStringLen, status);
} else { // we set by value, using 'B'
ucol_restoreVariableTop(result, s.variableTopValue, status);
}
}
if(U_FAILURE(*status)) { // here it can only be a bogus value
ucol_close(result);
result = NULL;
}
UTRACE_EXIT_PTR_STATUS(result, *status);
return result;
}
