747 lines
26 KiB
C++
747 lines
26 KiB
C++
/*
|
|
*******************************************************************************
|
|
* Copyright (C) 1996-2008, 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 "ustrenum.h"
|
|
#include "putilimp.h"
|
|
#include "utracimp.h"
|
|
#include "cmemory.h"
|
|
|
|
U_NAMESPACE_USE
|
|
|
|
/****************************************************************************/
|
|
/* 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)) {
|
|
// 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);
|
|
// Check for null result
|
|
if (result == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
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(*status)) { /* otherwise, we'll pick a collation data that exists */
|
|
int32_t len = 0;
|
|
const uint8_t *inData = ures_getBinary(binary, &len, status);
|
|
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;
|
|
}
|
|
}
|
|
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_openStringEnumeration(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);
|
|
}
|
|
|
|
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 */
|