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scuffed-code/icu4c/source/i18n/ucol_res.cpp
Michael Ow 9e716413b2 ICU-3378 Use constants in uloc.h. 
X-SVN-Rev: 25678
2009-03-30 18:51:03 +00:00

969 lines
33 KiB
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/*
*******************************************************************************
* Copyright (C) 1996-2009, International Business Machines
* Corporation and others. All Rights Reserved.
*******************************************************************************
* file name: ucol_res.cpp
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* Description:
* This file contains dependencies that the collation run-time doesn't normally
* need. This mainly contains resource bundle usage and collation meta information
*
* Modification history
* Date Name Comments
* 1996-1999 various members of ICU team maintained C API for collation framework
* 02/16/2001 synwee Added internal method getPrevSpecialCE
* 03/01/2001 synwee Added maxexpansion functionality.
* 03/16/2001 weiv Collation framework is rewritten in C and made UCA compliant
* 12/08/2004 grhoten Split part of ucol.cpp into ucol_res.cpp
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_COLLATION
#include "unicode/uloc.h"
#include "unicode/coll.h"
#include "unicode/tblcoll.h"
#include "unicode/caniter.h"
#include "unicode/ustring.h"
#include "ucol_bld.h"
#include "ucol_imp.h"
#include "ucol_tok.h"
#include "ucol_elm.h"
#include "uresimp.h"
#include "ustr_imp.h"
#include "cstring.h"
#include "umutex.h"
#include "ucln_in.h"
#include "ustrenum.h"
#include "putilimp.h"
#include "utracimp.h"
#include "cmemory.h"
#include "uenumimp.h"
#include "ulist.h"
U_NAMESPACE_USE
// static UCA. There is only one. Collators don't use it.
// It is referenced only in ucol_initUCA and ucol_cleanup
static UCollator* _staticUCA = NULL;
// static pointer to udata memory. Inited in ucol_initUCA
// used for cleanup in ucol_cleanup
static UDataMemory* UCA_DATA_MEM = NULL;
U_CDECL_BEGIN
static UBool U_CALLCONV
ucol_res_cleanup(void)
{
if (UCA_DATA_MEM) {
udata_close(UCA_DATA_MEM);
UCA_DATA_MEM = NULL;
}
if (_staticUCA) {
ucol_close(_staticUCA);
_staticUCA = NULL;
}
return TRUE;
}
static UBool U_CALLCONV
isAcceptableUCA(void * /*context*/,
const char * /*type*/, const char * /*name*/,
const UDataInfo *pInfo){
/* context, type & name are intentionally not used */
if( pInfo->size>=20 &&
pInfo->isBigEndian==U_IS_BIG_ENDIAN &&
pInfo->charsetFamily==U_CHARSET_FAMILY &&
pInfo->dataFormat[0]==UCA_DATA_FORMAT_0 && /* dataFormat="UCol" */
pInfo->dataFormat[1]==UCA_DATA_FORMAT_1 &&
pInfo->dataFormat[2]==UCA_DATA_FORMAT_2 &&
pInfo->dataFormat[3]==UCA_DATA_FORMAT_3 &&
pInfo->formatVersion[0]==UCA_FORMAT_VERSION_0 &&
pInfo->formatVersion[1]>=UCA_FORMAT_VERSION_1// &&
//pInfo->formatVersion[1]==UCA_FORMAT_VERSION_1 &&
//pInfo->formatVersion[2]==UCA_FORMAT_VERSION_2 && // Too harsh
//pInfo->formatVersion[3]==UCA_FORMAT_VERSION_3 && // Too harsh
) {
UVersionInfo UCDVersion;
u_getUnicodeVersion(UCDVersion);
return (UBool)(pInfo->dataVersion[0]==UCDVersion[0]
&& pInfo->dataVersion[1]==UCDVersion[1]);
//&& pInfo->dataVersion[2]==ucaDataInfo.dataVersion[2]
//&& pInfo->dataVersion[3]==ucaDataInfo.dataVersion[3]);
} else {
return FALSE;
}
}
U_CDECL_END
/* do not close UCA returned by ucol_initUCA! */
UCollator *
ucol_initUCA(UErrorCode *status) {
if(U_FAILURE(*status)) {
return NULL;
}
UBool needsInit;
UMTX_CHECK(NULL, (_staticUCA == NULL), needsInit);
if(needsInit) {
UDataMemory *result = udata_openChoice(U_ICUDATA_COLL, UCA_DATA_TYPE, UCA_DATA_NAME, isAcceptableUCA, NULL, status);
if(U_SUCCESS(*status)){
UCollator *newUCA = ucol_initCollator((const UCATableHeader *)udata_getMemory(result), NULL, NULL, status);
if(U_SUCCESS(*status)){
// Initalize variables for implicit generation
uprv_uca_initImplicitConstants(status);
umtx_lock(NULL);
if(_staticUCA == NULL) {
UCA_DATA_MEM = result;
_staticUCA = newUCA;
newUCA = NULL;
result = NULL;
}
umtx_unlock(NULL);
ucln_i18n_registerCleanup(UCLN_I18N_UCOL_RES, ucol_res_cleanup);
if(newUCA != NULL) {
ucol_close(newUCA);
udata_close(result);
}
}else{
ucol_close(newUCA);
udata_close(result);
}
}
else {
udata_close(result);
}
}
return _staticUCA;
}
U_CAPI void U_EXPORT2
ucol_forgetUCA(void)
{
_staticUCA = NULL;
UCA_DATA_MEM = NULL;
}
/****************************************************************************/
/* Following are the open/close functions */
/* */
/****************************************************************************/
static UCollator*
tryOpeningFromRules(UResourceBundle *collElem, UErrorCode *status) {
int32_t rulesLen = 0;
const UChar *rules = ures_getStringByKey(collElem, "Sequence", &rulesLen, status);
return ucol_openRules(rules, rulesLen, UCOL_DEFAULT, UCOL_DEFAULT, NULL, status);
}
// API in ucol_imp.h
U_CFUNC UCollator*
ucol_open_internal(const char *loc,
UErrorCode *status)
{
UErrorCode intStatus = U_ZERO_ERROR;
const UCollator* UCA = ucol_initUCA(status);
/* New version */
if(U_FAILURE(*status)) return 0;
UCollator *result = NULL;
UResourceBundle *b = ures_open(U_ICUDATA_COLL, loc, status);
/* we try to find stuff from keyword */
UResourceBundle *collations = ures_getByKey(b, "collations", NULL, status);
UResourceBundle *collElem = NULL;
char keyBuffer[256];
// if there is a keyword, we pick it up and try to get elements
if(!uloc_getKeywordValue(loc, "collation", keyBuffer, 256, status) ||
!uprv_strcmp(keyBuffer,"default")) { /* Treat 'zz@collation=default' as 'zz'. */
// no keyword. we try to find the default setting, which will give us the keyword value
intStatus = U_ZERO_ERROR;
// finding default value does not affect collation fallback status
UResourceBundle *defaultColl = ures_getByKeyWithFallback(collations, "default", NULL, &intStatus);
if(U_SUCCESS(intStatus)) {
int32_t defaultKeyLen = 0;
const UChar *defaultKey = ures_getString(defaultColl, &defaultKeyLen, &intStatus);
u_UCharsToChars(defaultKey, keyBuffer, defaultKeyLen);
keyBuffer[defaultKeyLen] = 0;
} else {
*status = U_INTERNAL_PROGRAM_ERROR;
return NULL;
}
ures_close(defaultColl);
}
collElem = ures_getByKeyWithFallback(collations, keyBuffer, collations, status);
collations = NULL; // We just reused the collations object as collElem.
UResourceBundle *binary = NULL;
if(*status == U_MISSING_RESOURCE_ERROR) { /* We didn't find the tailoring data, we fallback to the UCA */
*status = U_USING_DEFAULT_WARNING;
result = ucol_initCollator(UCA->image, result, UCA, status);
if (U_FAILURE(*status)) {
goto clean;
}
// if we use UCA, real locale is root
ures_close(b);
b = ures_open(U_ICUDATA_COLL, "", status);
ures_close(collElem);
collElem = ures_open(U_ICUDATA_COLL, "", status);
if(U_FAILURE(*status)) {
goto clean;
}
result->hasRealData = FALSE;
} else if(U_SUCCESS(*status)) {
intStatus = U_ZERO_ERROR;
binary = ures_getByKey(collElem, "%%CollationBin", NULL, &intStatus);
if(intStatus == U_MISSING_RESOURCE_ERROR) { /* we didn't find the binary image, we should use the rules */
binary = NULL;
result = tryOpeningFromRules(collElem, status);
if(U_FAILURE(*status)) {
goto clean;
}
} else if(U_SUCCESS(intStatus)) { /* otherwise, we'll pick a collation data that exists */
int32_t len = 0;
const uint8_t *inData = ures_getBinary(binary, &len, status);
if(U_FAILURE(*status)) {
goto clean;
}
UCATableHeader *colData = (UCATableHeader *)inData;
if(uprv_memcmp(colData->UCAVersion, UCA->image->UCAVersion, sizeof(UVersionInfo)) != 0 ||
uprv_memcmp(colData->UCDVersion, UCA->image->UCDVersion, sizeof(UVersionInfo)) != 0 ||
colData->version[0] != UCOL_BUILDER_VERSION)
{
*status = U_DIFFERENT_UCA_VERSION;
result = tryOpeningFromRules(collElem, status);
} else {
if(U_FAILURE(*status)){
goto clean;
}
if((uint32_t)len > (paddedsize(sizeof(UCATableHeader)) + paddedsize(sizeof(UColOptionSet)))) {
result = ucol_initCollator((const UCATableHeader *)inData, result, UCA, status);
if(U_FAILURE(*status)){
goto clean;
}
result->hasRealData = TRUE;
} else {
result = ucol_initCollator(UCA->image, result, UCA, status);
ucol_setOptionsFromHeader(result, (UColOptionSet *)(inData+((const UCATableHeader *)inData)->options), status);
if(U_FAILURE(*status)){
goto clean;
}
result->hasRealData = FALSE;
}
result->freeImageOnClose = FALSE;
}
} else { // !U_SUCCESS(binaryStatus)
if(U_SUCCESS(*status)) {
*status = intStatus; // propagate underlying error
}
goto clean;
}
intStatus = U_ZERO_ERROR;
result->rules = ures_getStringByKey(collElem, "Sequence", &result->rulesLength, &intStatus);
result->freeRulesOnClose = FALSE;
} else { /* There is another error, and we're just gonna clean up */
goto clean;
}
intStatus = U_ZERO_ERROR;
result->ucaRules = ures_getStringByKey(b,"UCARules",NULL,&intStatus);
if(loc == NULL) {
loc = ures_getLocale(b, status);
}
result->requestedLocale = uprv_strdup(loc);
/* test for NULL */
if (result->requestedLocale == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
goto clean;
}
loc = ures_getLocale(collElem, status);
result->actualLocale = uprv_strdup(loc);
/* test for NULL */
if (result->actualLocale == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
goto clean;
}
loc = ures_getLocale(b, status);
result->validLocale = uprv_strdup(loc);
/* test for NULL */
if (result->validLocale == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
goto clean;
}
ures_close(b);
ures_close(collElem);
ures_close(binary);
return result;
clean:
ures_close(b);
ures_close(collElem);
ures_close(binary);
ucol_close(result);
return NULL;
}
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;
}
U_CAPI UCollator* U_EXPORT2
ucol_openRules( const UChar *rules,
int32_t rulesLength,
UColAttributeValue normalizationMode,
UCollationStrength strength,
UParseError *parseError,
UErrorCode *status)
{
UColTokenParser src;
UColAttributeValue norm;
UParseError tErr;
if(status == NULL || U_FAILURE(*status)){
return 0;
}
u_init(status);
if (U_FAILURE(*status)) {
return NULL;
}
if(rules == NULL || rulesLength < -1) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
if(rulesLength == -1) {
rulesLength = u_strlen(rules);
}
if(parseError == NULL){
parseError = &tErr;
}
switch(normalizationMode) {
case UCOL_OFF:
case UCOL_ON:
case UCOL_DEFAULT:
norm = normalizationMode;
break;
default:
*status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
UCollator *result = NULL;
UCATableHeader *table = NULL;
UCollator *UCA = ucol_initUCA(status);
if(U_FAILURE(*status)){
return NULL;
}
ucol_tok_initTokenList(&src, rules, rulesLength, UCA, status);
ucol_tok_assembleTokenList(&src,parseError, status);
if(U_FAILURE(*status)) {
/* if status is U_ILLEGAL_ARGUMENT_ERROR, src->current points at the offending option */
/* if status is U_INVALID_FORMAT_ERROR, src->current points after the problematic part of the rules */
/* so something might be done here... or on lower level */
#ifdef UCOL_DEBUG
if(*status == U_ILLEGAL_ARGUMENT_ERROR) {
fprintf(stderr, "bad option starting at offset %i\n", src.current-src.source);
} else {
fprintf(stderr, "invalid rule just before offset %i\n", src.current-src.source);
}
#endif
goto cleanup;
}
if(src.resultLen > 0 || src.removeSet != NULL) { /* we have a set of rules, let's make something of it */
/* also, if we wanted to remove some contractions, we should make a tailoring */
table = ucol_assembleTailoringTable(&src, status);
if(U_SUCCESS(*status)) {
// builder version
table->version[0] = UCOL_BUILDER_VERSION;
// no tailoring information on this level
table->version[1] = table->version[2] = table->version[3] = 0;
// set UCD version
u_getUnicodeVersion(table->UCDVersion);
// set UCA version
uprv_memcpy(table->UCAVersion, UCA->image->UCAVersion, sizeof(UVersionInfo));
result = ucol_initCollator(table, 0, UCA, status);
if (U_FAILURE(*status)) {
goto cleanup;
}
result->hasRealData = TRUE;
result->freeImageOnClose = TRUE;
}
} else { /* no rules, but no error either */
// must be only options
// We will init the collator from UCA
result = ucol_initCollator(UCA->image, 0, UCA, status);
// Check for null result
if (U_FAILURE(*status)) {
goto cleanup;
}
// And set only the options
UColOptionSet *opts = (UColOptionSet *)uprv_malloc(sizeof(UColOptionSet));
/* test for NULL */
if (opts == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
goto cleanup;
}
uprv_memcpy(opts, src.opts, sizeof(UColOptionSet));
ucol_setOptionsFromHeader(result, opts, status);
result->freeOptionsOnClose = TRUE;
result->hasRealData = FALSE;
result->freeImageOnClose = FALSE;
}
if(U_SUCCESS(*status)) {
UChar *newRules;
result->dataVersion[0] = UCOL_BUILDER_VERSION;
if(rulesLength > 0) {
newRules = (UChar *)uprv_malloc((rulesLength+1)*U_SIZEOF_UCHAR);
/* test for NULL */
if (newRules == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
goto cleanup;
}
uprv_memcpy(newRules, rules, rulesLength*U_SIZEOF_UCHAR);
newRules[rulesLength]=0;
result->rules = newRules;
result->rulesLength = rulesLength;
result->freeRulesOnClose = TRUE;
}
result->ucaRules = NULL;
result->actualLocale = NULL;
result->validLocale = NULL;
result->requestedLocale = NULL;
ucol_setAttribute(result, UCOL_STRENGTH, strength, status);
ucol_setAttribute(result, UCOL_NORMALIZATION_MODE, norm, status);
} else {
cleanup:
if(result != NULL) {
ucol_close(result);
} else {
if(table != NULL) {
uprv_free(table);
}
}
result = NULL;
}
ucol_tok_closeTokenList(&src);
return result;
}
U_CAPI int32_t U_EXPORT2
ucol_getRulesEx(const UCollator *coll, UColRuleOption delta, UChar *buffer, int32_t bufferLen) {
UErrorCode status = U_ZERO_ERROR;
int32_t len = 0;
int32_t UCAlen = 0;
const UChar* ucaRules = 0;
const UChar *rules = ucol_getRules(coll, &len);
if(delta == UCOL_FULL_RULES) {
/* take the UCA rules and append real rules at the end */
/* UCA rules will be probably coming from the root RB */
ucaRules = coll->ucaRules;
if (ucaRules) {
UCAlen = u_strlen(ucaRules);
}
/*
ucaRules = ures_getStringByKey(coll->rb,"UCARules",&UCAlen,&status);
UResourceBundle* cresb = ures_getByKeyWithFallback(coll->rb, "collations", NULL, &status);
UResourceBundle* uca = ures_getByKeyWithFallback(cresb, "UCA", NULL, &status);
ucaRules = ures_getStringByKey(uca,"Sequence",&UCAlen,&status);
ures_close(uca);
ures_close(cresb);
*/
}
if(U_FAILURE(status)) {
return 0;
}
if(buffer!=0 && bufferLen>0){
*buffer=0;
if(UCAlen > 0) {
u_memcpy(buffer, ucaRules, uprv_min(UCAlen, bufferLen));
}
if(len > 0 && bufferLen > UCAlen) {
u_memcpy(buffer+UCAlen, rules, uprv_min(len, bufferLen-UCAlen));
}
}
return u_terminateUChars(buffer, bufferLen, len+UCAlen, &status);
}
static const UChar _NUL = 0;
U_CAPI const UChar* U_EXPORT2
ucol_getRules( const UCollator *coll,
int32_t *length)
{
if(coll->rules != NULL) {
*length = coll->rulesLength;
return coll->rules;
}
else {
*length = 0;
return &_NUL;
}
}
U_CAPI UBool U_EXPORT2
ucol_equals(const UCollator *source, const UCollator *target) {
UErrorCode status = U_ZERO_ERROR;
// if pointers are equal, collators are equal
if(source == target) {
return TRUE;
}
int32_t i = 0, j = 0;
// if any of attributes are different, collators are not equal
for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) {
if(ucol_getAttribute(source, (UColAttribute)i, &status) != ucol_getAttribute(target, (UColAttribute)i, &status) || U_FAILURE(status)) {
return FALSE;
}
}
int32_t sourceRulesLen = 0, targetRulesLen = 0;
const UChar *sourceRules = ucol_getRules(source, &sourceRulesLen);
const UChar *targetRules = ucol_getRules(target, &targetRulesLen);
if(sourceRulesLen == targetRulesLen && u_strncmp(sourceRules, targetRules, sourceRulesLen) == 0) {
// all the attributes are equal and the rules are equal - collators are equal
return(TRUE);
}
// hard part, need to construct tree from rules and see if they yield the same tailoring
UBool result = TRUE;
UParseError parseError;
UColTokenParser sourceParser, targetParser;
int32_t sourceListLen = 0, targetListLen = 0;
ucol_tok_initTokenList(&sourceParser, sourceRules, sourceRulesLen, source->UCA, &status);
ucol_tok_initTokenList(&targetParser, targetRules, targetRulesLen, target->UCA, &status);
sourceListLen = ucol_tok_assembleTokenList(&sourceParser, &parseError, &status);
targetListLen = ucol_tok_assembleTokenList(&targetParser, &parseError, &status);
if(sourceListLen != targetListLen) {
// different number of resets
result = FALSE;
} else {
UColToken *sourceReset = NULL, *targetReset = NULL;
UChar *sourceResetString = NULL, *targetResetString = NULL;
int32_t sourceStringLen = 0, targetStringLen = 0;
for(i = 0; i < sourceListLen; i++) {
sourceReset = sourceParser.lh[i].reset;
sourceResetString = sourceParser.source+(sourceReset->source & 0xFFFFFF);
sourceStringLen = sourceReset->source >> 24;
for(j = 0; j < sourceListLen; j++) {
targetReset = targetParser.lh[j].reset;
targetResetString = targetParser.source+(targetReset->source & 0xFFFFFF);
targetStringLen = targetReset->source >> 24;
if(sourceStringLen == targetStringLen && (u_strncmp(sourceResetString, targetResetString, sourceStringLen) == 0)) {
sourceReset = sourceParser.lh[i].first;
targetReset = targetParser.lh[j].first;
while(sourceReset != NULL && targetReset != NULL) {
sourceResetString = sourceParser.source+(sourceReset->source & 0xFFFFFF);
sourceStringLen = sourceReset->source >> 24;
targetResetString = targetParser.source+(targetReset->source & 0xFFFFFF);
targetStringLen = targetReset->source >> 24;
if(sourceStringLen != targetStringLen || (u_strncmp(sourceResetString, targetResetString, sourceStringLen) != 0)) {
result = FALSE;
goto returnResult;
}
// probably also need to check the expansions
if(sourceReset->expansion) {
if(!targetReset->expansion) {
result = FALSE;
goto returnResult;
} else {
// compare expansions
sourceResetString = sourceParser.source+(sourceReset->expansion& 0xFFFFFF);
sourceStringLen = sourceReset->expansion >> 24;
targetResetString = targetParser.source+(targetReset->expansion & 0xFFFFFF);
targetStringLen = targetReset->expansion >> 24;
if(sourceStringLen != targetStringLen || (u_strncmp(sourceResetString, targetResetString, sourceStringLen) != 0)) {
result = FALSE;
goto returnResult;
}
}
} else {
if(targetReset->expansion) {
result = FALSE;
goto returnResult;
}
}
sourceReset = sourceReset->next;
targetReset = targetReset->next;
}
if(sourceReset != targetReset) { // at least one is not NULL
// there are more tailored elements in one list
result = FALSE;
goto returnResult;
}
break;
}
}
// couldn't find the reset anchor, so the collators are not equal
if(j == sourceListLen) {
result = FALSE;
goto returnResult;
}
}
}
returnResult:
ucol_tok_closeTokenList(&sourceParser);
ucol_tok_closeTokenList(&targetParser);
return result;
}
U_CAPI int32_t U_EXPORT2
ucol_getDisplayName( const char *objLoc,
const char *dispLoc,
UChar *result,
int32_t resultLength,
UErrorCode *status)
{
U_NAMESPACE_USE
if(U_FAILURE(*status)) return -1;
UnicodeString dst;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
dst.setTo(result, 0, resultLength);
}
Collator::getDisplayName(Locale(objLoc), Locale(dispLoc), dst);
return dst.extract(result, resultLength, *status);
}
U_CAPI const char* U_EXPORT2
ucol_getAvailable(int32_t index)
{
int32_t count = 0;
const Locale *loc = Collator::getAvailableLocales(count);
if (loc != NULL && index < count) {
return loc[index].getName();
}
return NULL;
}
U_CAPI int32_t U_EXPORT2
ucol_countAvailable()
{
int32_t count = 0;
Collator::getAvailableLocales(count);
return count;
}
#if !UCONFIG_NO_SERVICE
U_CAPI UEnumeration* U_EXPORT2
ucol_openAvailableLocales(UErrorCode *status) {
U_NAMESPACE_USE
// This is a wrapper over Collator::getAvailableLocales()
if (U_FAILURE(*status)) {
return NULL;
}
StringEnumeration *s = Collator::getAvailableLocales();
if (s == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
return uenum_openFromStringEnumeration(s, status);
}
#endif
// Note: KEYWORDS[0] != RESOURCE_NAME - alan
static const char RESOURCE_NAME[] = "collations";
static const char* const KEYWORDS[] = { "collation" };
#define KEYWORD_COUNT (sizeof(KEYWORDS)/sizeof(KEYWORDS[0]))
U_CAPI UEnumeration* U_EXPORT2
ucol_getKeywords(UErrorCode *status) {
UEnumeration *result = NULL;
if (U_SUCCESS(*status)) {
return uenum_openCharStringsEnumeration(KEYWORDS, KEYWORD_COUNT, status);
}
return result;
}
U_CAPI UEnumeration* U_EXPORT2
ucol_getKeywordValues(const char *keyword, UErrorCode *status) {
if (U_FAILURE(*status)) {
return NULL;
}
// hard-coded to accept exactly one collation keyword
// modify if additional collation keyword is added later
if (keyword==NULL || uprv_strcmp(keyword, KEYWORDS[0])!=0)
{
*status = U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
return ures_getKeywordValues(U_ICUDATA_COLL, RESOURCE_NAME, status);
}
static const UEnumeration defaultKeywordValues = {
NULL,
NULL,
ulist_close_keyword_values_iterator,
ulist_count_keyword_values,
uenum_unextDefault,
ulist_next_keyword_value,
ulist_reset_keyword_values_iterator
};
U_CAPI UEnumeration* U_EXPORT2
ucol_getKeywordValuesForLocale(const char* /*key*/, const char* locale,
UBool /*commonlyUsed*/, UErrorCode* status) {
/* Get the locale base name. */
char localeBuffer[ULOC_FULLNAME_CAPACITY] = "";
uloc_getBaseName(locale, localeBuffer, sizeof(localeBuffer), status);
/* Create the 2 lists
* -values is the temp location for the keyword values
* -results hold the actual list used by the UEnumeration object
*/
UList *values = ulist_createEmptyList(status);
UList *results = ulist_createEmptyList(status);
UEnumeration *en = (UEnumeration *)uprv_malloc(sizeof(UEnumeration));
if (U_FAILURE(*status) || en == NULL) {
if (en == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
} else {
uprv_free(en);
}
ulist_deleteList(values);
ulist_deleteList(results);
return NULL;
}
memcpy(en, &defaultKeywordValues, sizeof(UEnumeration));
en->context = results;
/* Open the resource bundle for collation with the given locale. */
UResourceBundle bundle, collations, collres, defres;
ures_initStackObject(&bundle);
ures_initStackObject(&collations);
ures_initStackObject(&collres);
ures_initStackObject(&defres);
ures_openFillIn(&bundle, U_ICUDATA_COLL, localeBuffer, status);
while (U_SUCCESS(*status)) {
ures_getByKey(&bundle, RESOURCE_NAME, &collations, status);
ures_resetIterator(&collations);
while (U_SUCCESS(*status) && ures_hasNext(&collations)) {
ures_getNextResource(&collations, &collres, status);
const char *key = ures_getKey(&collres);
/* If the key is default, get the string and store it in results list only
* if results list is empty.
*/
if (uprv_strcmp(key, "default") == 0) {
if (ulist_getListSize(results) == 0) {
char *defcoll = (char *)uprv_malloc(sizeof(char) * ULOC_KEYWORDS_CAPACITY);
int32_t defcollLength = ULOC_KEYWORDS_CAPACITY;
ures_getNextResource(&collres, &defres, status);
ures_getUTF8String(&defres, defcoll, &defcollLength, TRUE, status);
ulist_addItemBeginList(results, defcoll, TRUE, status);
}
} else {
ulist_addItemEndList(values, key, FALSE, status);
}
}
/* If the locale is "" this is root so exit. */
if (uprv_strlen(localeBuffer) == 0) {
break;
}
/* Get the parent locale and open a new resource bundle. */
uloc_getParent(localeBuffer, localeBuffer, sizeof(localeBuffer), status);
ures_openFillIn(&bundle, U_ICUDATA_COLL, localeBuffer, status);
}
ures_close(&defres);
ures_close(&collres);
ures_close(&collations);
ures_close(&bundle);
if (U_SUCCESS(*status)) {
char *value = NULL;
ulist_resetList(values);
while ((value = (char *)ulist_getNext(values)) != NULL) {
if (!ulist_containsString(results, value, uprv_strlen(value))) {
ulist_addItemEndList(results, value, FALSE, status);
if (U_FAILURE(*status)) {
break;
}
}
}
}
ulist_deleteList(values);
if (U_FAILURE(*status)){
uenum_close(en);
en = NULL;
} else {
ulist_resetList(results);
}
return en;
}
U_CAPI int32_t U_EXPORT2
ucol_getFunctionalEquivalent(char* result, int32_t resultCapacity,
const char* keyword, const char* locale,
UBool* isAvailable, UErrorCode* status)
{
// N.B.: Resource name is "collations" but keyword is "collation"
return ures_getFunctionalEquivalent(result, resultCapacity, U_ICUDATA_COLL,
"collations", keyword, locale,
isAvailable, TRUE, status);
}
/* returns the locale name the collation data comes from */
U_CAPI const char * U_EXPORT2
ucol_getLocale(const UCollator *coll, ULocDataLocaleType type, UErrorCode *status) {
return ucol_getLocaleByType(coll, type, status);
}
U_CAPI const char * U_EXPORT2
ucol_getLocaleByType(const UCollator *coll, ULocDataLocaleType type, UErrorCode *status) {
const char *result = NULL;
if(status == NULL || U_FAILURE(*status)) {
return NULL;
}
UTRACE_ENTRY(UTRACE_UCOL_GETLOCALE);
UTRACE_DATA1(UTRACE_INFO, "coll=%p", coll);
switch(type) {
case ULOC_ACTUAL_LOCALE:
result = coll->actualLocale;
break;
case ULOC_VALID_LOCALE:
result = coll->validLocale;
break;
case ULOC_REQUESTED_LOCALE:
result = coll->requestedLocale;
break;
default:
*status = U_ILLEGAL_ARGUMENT_ERROR;
}
UTRACE_DATA1(UTRACE_INFO, "result = %s", result);
UTRACE_EXIT_STATUS(*status);
return result;
}
U_CFUNC void U_EXPORT2
ucol_setReqValidLocales(UCollator *coll, char *requestedLocaleToAdopt, char *validLocaleToAdopt, char *actualLocaleToAdopt)
{
if (coll) {
if (coll->validLocale) {
uprv_free(coll->validLocale);
}
coll->validLocale = validLocaleToAdopt;
if (coll->requestedLocale) { // should always have
uprv_free(coll->requestedLocale);
}
coll->requestedLocale = requestedLocaleToAdopt;
if (coll->actualLocale) {
uprv_free(coll->actualLocale);
}
coll->actualLocale = actualLocaleToAdopt;
}
}
U_CAPI USet * U_EXPORT2
ucol_getTailoredSet(const UCollator *coll, UErrorCode *status)
{
U_NAMESPACE_USE
if(status == NULL || U_FAILURE(*status)) {
return NULL;
}
if(coll == NULL || coll->UCA == NULL) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
UParseError parseError;
UColTokenParser src;
int32_t rulesLen = 0;
const UChar *rules = ucol_getRules(coll, &rulesLen);
UBool startOfRules = TRUE;
// we internally use the C++ class, for the following reasons:
// 1. we need to utilize canonical iterator, which is a C++ only class
// 2. canonical iterator returns UnicodeStrings - USet cannot take them
// 3. USet is internally really UnicodeSet, C is just a wrapper
UnicodeSet *tailored = new UnicodeSet();
UnicodeString pattern;
UnicodeString empty;
CanonicalIterator it(empty, *status);
// The idea is to tokenize the rule set. For each non-reset token,
// we add all the canonicaly equivalent FCD sequences
ucol_tok_initTokenList(&src, rules, rulesLen, coll->UCA, status);
while (ucol_tok_parseNextToken(&src, startOfRules, &parseError, status) != NULL) {
startOfRules = FALSE;
if(src.parsedToken.strength != UCOL_TOK_RESET) {
const UChar *stuff = src.source+(src.parsedToken.charsOffset);
it.setSource(UnicodeString(stuff, src.parsedToken.charsLen), *status);
pattern = it.next();
while(!pattern.isBogus()) {
if(Normalizer::quickCheck(pattern, UNORM_FCD, *status) != UNORM_NO) {
tailored->add(pattern);
}
pattern = it.next();
}
}
}
ucol_tok_closeTokenList(&src);
return (USet *)tailored;
}
#endif /* #if !UCONFIG_NO_COLLATION */
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