3083 lines
120 KiB
C++
3083 lines
120 KiB
C++
/*
|
|
*******************************************************************************
|
|
* Copyright (C) 1996-1999, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*******************************************************************************
|
|
*/
|
|
|
|
#include "ucolimp.h"
|
|
|
|
#include "unicode/uloc.h"
|
|
#include "unicode/coll.h"
|
|
#include "unicode/tblcoll.h"
|
|
#include "unicode/coleitr.h"
|
|
#include "unicode/ustring.h"
|
|
#include "unicode/normlzr.h"
|
|
#include "unicode/unorm.h"
|
|
#include "cpputils.h"
|
|
#include "cstring.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "ucmp32.h"
|
|
#include "tcoldata.h"
|
|
#include "tables.h"
|
|
|
|
#include "unicode/udata.h"
|
|
#include "umutex.h"
|
|
|
|
static UCollator* UCA = NULL;
|
|
|
|
static UBool
|
|
isAcceptable(void *context,
|
|
const char *type, const char *name,
|
|
const UDataInfo *pInfo){
|
|
|
|
if( pInfo->size>=20 &&
|
|
pInfo->isBigEndian==U_IS_BIG_ENDIAN &&
|
|
pInfo->charsetFamily==U_CHARSET_FAMILY &&
|
|
pInfo->dataFormat[0]==0x55 && /* dataFormat="UCol" */
|
|
pInfo->dataFormat[1]==0x43 &&
|
|
pInfo->dataFormat[2]==0x6f &&
|
|
pInfo->dataFormat[3]==0x6c &&
|
|
pInfo->formatVersion[0]==1 &&
|
|
pInfo->dataVersion[0]==3 &&
|
|
pInfo->dataVersion[1]==0 &&
|
|
pInfo->dataVersion[2]==0 &&
|
|
pInfo->dataVersion[3]==0) {
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Following are the open/close functions */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
U_CAPI UCollator*
|
|
ucol_open( const char *loc,
|
|
UErrorCode *status)
|
|
{
|
|
/* New version */
|
|
if(U_FAILURE(*status)) return 0;
|
|
|
|
ucol_initUCA(status);
|
|
|
|
UCollator *result = NULL;
|
|
UResourceBundle *b = ures_open(NULL, loc, status);
|
|
UResourceBundle *binary = ures_getByKey(b, "%%CollationNew", NULL, status);
|
|
|
|
if(*status = U_MISSING_RESOURCE_ERROR) { /* if we don't find tailoring, we'll fallback to UCA */
|
|
result = UCA;
|
|
*status = U_USING_DEFAULT_ERROR;
|
|
} 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);
|
|
result = ucol_initCollator((const UCATableHeader *)inData, result, status);
|
|
result->rb = b;
|
|
}
|
|
|
|
ures_close(binary);
|
|
|
|
return result;
|
|
}
|
|
|
|
U_CAPI void
|
|
ucol_close(UCollator *coll)
|
|
{
|
|
/* Here, it would be advisable to close: */
|
|
/* - UData for UCA (unless we stuff it in the root resb */
|
|
/* Again, do we need additional housekeeping... HMMM! */
|
|
if(coll->rules != NULL) {
|
|
uprv_free(coll->rules);
|
|
}
|
|
if(coll->rb != NULL) {
|
|
ures_close(coll->rb);
|
|
}
|
|
if(coll->freeOnClose == TRUE) {
|
|
uprv_free(coll);
|
|
}
|
|
}
|
|
|
|
U_CAPI UCollator*
|
|
ucol_openRules( const UChar *rules,
|
|
int32_t rulesLength,
|
|
UNormalizationMode mode,
|
|
UCollationStrength strength,
|
|
UErrorCode *status)
|
|
{
|
|
return 0;
|
|
/*
|
|
synwee : waiting for vladimir's changes
|
|
if(U_FAILURE(*status)) return 0;
|
|
|
|
Normalizer::EMode normMode;
|
|
switch(mode) {
|
|
case UCOL_NO_NORMALIZATION:
|
|
normMode = Normalizer::NO_OP;
|
|
break;
|
|
case UCOL_DECOMP_CAN:
|
|
normMode = Normalizer::DECOMP;
|
|
break;
|
|
case UCOL_DECOMP_COMPAT:
|
|
normMode = Normalizer::DECOMP_COMPAT;
|
|
break;
|
|
case UCOL_DECOMP_CAN_COMP_COMPAT:
|
|
normMode = Normalizer::COMPOSE;
|
|
break;
|
|
case UCOL_DECOMP_COMPAT_COMP_CAN:
|
|
normMode = Normalizer::COMPOSE_COMPAT;
|
|
break;
|
|
default:
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return 0;
|
|
}
|
|
|
|
ucol_initUCA(status);
|
|
|
|
UCollator *result = ucol_initCollator(UCA->image,0,status);
|
|
|
|
result->rules = (UChar *)uprv_malloc((u_strlen(rules)+1)*sizeof(UChar));
|
|
u_strcpy(result->rules, rules);
|
|
|
|
result->rb = 0;
|
|
|
|
return result;
|
|
*/
|
|
}
|
|
|
|
/* This one is currently used by genrb & tests. After constructing from rules (tailoring),*/
|
|
/* you should be able to get the binary chunk to write out... Doesn't look very full now */
|
|
U_CAPI uint8_t *
|
|
ucol_cloneRuleData(UCollator *coll, int32_t *length, UErrorCode *status)
|
|
{
|
|
*length = 0;
|
|
return NULL;
|
|
}
|
|
|
|
UCollator* ucol_initCollator(const UCATableHeader *image, UCollator *fillIn, UErrorCode *status) {
|
|
UCollator *result = fillIn;
|
|
if(U_FAILURE(*status)) {
|
|
return NULL;
|
|
}
|
|
|
|
if(result == NULL) {
|
|
result = (UCollator *)uprv_malloc(sizeof(UCollator));
|
|
if(result == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return result;
|
|
}
|
|
result->freeOnClose = TRUE;
|
|
} else {
|
|
result->freeOnClose = FALSE;
|
|
}
|
|
|
|
result->image = image;
|
|
const uint8_t *mapping = (uint8_t*)result->image+result->image->mappingPosition;
|
|
CompactIntArray *newUCAmapping = ucmp32_openFromData(&mapping, status);
|
|
if(U_SUCCESS(*status)) {
|
|
result->mapping = newUCAmapping;
|
|
} else {
|
|
if(result->freeOnClose == TRUE) {
|
|
uprv_free(result);
|
|
result = NULL;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
result->latinOneMapping = (uint32_t*)((uint8_t*)result->image+result->image->latinOneMapping);
|
|
result->contractionCEs = (uint32_t*)((uint8_t*)result->image+result->image->contractionCEs);
|
|
result->contractionIndex = (UChar*)((uint8_t*)result->image+result->image->contractionIndex);
|
|
result->expansion = (uint32_t*)((uint8_t*)result->image+result->image->expansion);
|
|
/* set attributes */
|
|
result->caseFirst = result->image->caseFirst;
|
|
result->caseLevel = result->image->caseLevel;
|
|
result->frenchCollation = result->image->frenchCollation;
|
|
result->normalizationMode = result->image->normalizationMode;
|
|
result->strength = result->image->strength;
|
|
result->variableTopValue = result->image->variableTopValue;
|
|
|
|
result->caseFirstisDefault = TRUE;
|
|
result->caseLevelisDefault = TRUE;
|
|
result->frenchCollationisDefault = TRUE;
|
|
result->normalizationModeisDefault = TRUE;
|
|
result->strengthisDefault = TRUE;
|
|
result->variableTopValueisDefault = TRUE;
|
|
|
|
uint32_t variableMaxCE = ucmp32_get(result->mapping, result->variableTopValue);
|
|
result->variableMax = (variableMaxCE & 0xFF000000) >> 24;
|
|
|
|
result->scriptOrder = NULL;
|
|
|
|
result->zero = 0;
|
|
result->rules = NULL;
|
|
|
|
return result;
|
|
}
|
|
|
|
void ucol_initUCA(UErrorCode *status) {
|
|
if(U_FAILURE(*status)) return;
|
|
|
|
if(UCA == NULL) {
|
|
UCollator *newUCA = (UCollator *)uprv_malloc(sizeof(UCollator));
|
|
UDataMemory *result = udata_openChoice(NULL, UCA_DATA_TYPE, UCA_DATA_NAME, isAcceptable, NULL, status);
|
|
newUCA = ucol_initCollator((const UCATableHeader *)udata_getMemory(result), newUCA, status);
|
|
newUCA->rb = NULL;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
udata_close(result);
|
|
uprv_free(newUCA);
|
|
}
|
|
|
|
umtx_lock(NULL);
|
|
if(UCA == NULL) {
|
|
UCA = newUCA;
|
|
newUCA = NULL;
|
|
}
|
|
umtx_unlock(NULL);
|
|
|
|
if(newUCA != NULL) {
|
|
udata_close(result);
|
|
uprv_free(newUCA);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************/
|
|
/* Following are the CE retrieval functions */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
/* there should be a macro version of this function in the header file */
|
|
/* This is the first function that tries to fetch a collation element */
|
|
/* If it's not succesfull or it encounters a more difficult situation */
|
|
/* some more sofisticated and slower functions are invoked */
|
|
uint32_t ucol_getNextCE(const UCollator *coll, collIterate *collationSource, UErrorCode *status) {
|
|
uint32_t order;
|
|
if (U_FAILURE(*status) || (collationSource->pos>=collationSource->len
|
|
&& collationSource->CEpos <= collationSource->toReturn)) { /* have we run out of string and CEs?? */
|
|
order = UCOL_NULLORDER; /* if so, we won't play any more */
|
|
} else if (collationSource->CEpos > collationSource->toReturn) { /* Are there any CEs from previous expansions? */
|
|
order = *(collationSource->toReturn++); /* if so, return them */
|
|
collationSource->pos--;
|
|
} else { /* This is the real business now */
|
|
UChar ch = *collationSource->pos;
|
|
collationSource->CEpos = collationSource->toReturn = collationSource->CEs;
|
|
if(ch < 0xFF) { /* if it's Latin One, we'll try to fast track it */
|
|
order = coll->latinOneMapping[ch]; /* by looking in up in an array */
|
|
} else { /* otherwise, */
|
|
order = ucmp32_get(coll->mapping, ch); /* we'll go for slightly slower trie */
|
|
}
|
|
if(order >= UCOL_NOT_FOUND) { /* if a CE is special */
|
|
*(collationSource->CEpos) = order; /* prepare the buffer */
|
|
order = getSpecialCE(coll, collationSource, status); /* and try to get the special CE */
|
|
if(order == UCOL_NOT_FOUND) { /* We couldn't find a good CE in the tailoring */
|
|
order = ucol_getNextUCA(ch, collationSource, status);
|
|
}
|
|
}
|
|
}
|
|
collationSource->pos++; /* we're advancing to the next codepoint */
|
|
/* This means that contraction should spit back the last codepoint eaten! */
|
|
return order; /* return the CE */
|
|
}
|
|
|
|
/* This function tries to get a CE from UCA, which should be always around */
|
|
/* UChar is passed in in order to speed things up */
|
|
/* here is also the generation of implicit CEs */
|
|
uint32_t ucol_getNextUCA(UChar ch, collIterate *collationSource, UErrorCode *status) {
|
|
uint32_t order;
|
|
if(ch < 0xFF) { /* so we'll try to find it in the UCA */
|
|
order = UCA->latinOneMapping[ch];
|
|
} else {
|
|
order = ucmp32_get(UCA->mapping, ch);
|
|
}
|
|
if(order >= UCOL_NOT_FOUND) { /* UCA also gives us a special CE */
|
|
order = getSpecialCE(UCA, collationSource, status);
|
|
}
|
|
if(order == UCOL_NOT_FOUND) { /* This is where we have to resort to algorithmical generation */
|
|
/* We have to check if ch is possibly a first surrogate - then we need to take the next code unit */
|
|
/* and make a bigger CE */
|
|
UChar nextChar;
|
|
if(UTF_IS_FIRST_SURROGATE(ch)) {
|
|
if( (collationSource->pos<collationSource->len) &&
|
|
UTF_IS_SECOND_SURROGATE((nextChar=*(collationSource->pos+1)))) {
|
|
uint32_t cp = (((ch)<<10UL)+(nextChar)-((0xd800<<10UL)+0xdc00));
|
|
collationSource->pos++;
|
|
if ((cp & 0xFFFE) == 0xFFFE || (0xD800 <= cp && cp <= 0xDC00)) {
|
|
return 0; /* illegal code value, use completely ignoreable! */
|
|
}
|
|
/* This is a code point minus 0x10000, that's what algorithm requires */
|
|
order = 0xE0010303 | (cp & 0xFFE00) << 8;
|
|
*(collationSource->CEpos++) = 0x80200080 | (cp & 0x001FF) << 22;
|
|
} else {
|
|
return 0; /* completely ignorable */
|
|
}
|
|
} else {
|
|
/* otherwise */
|
|
if(UTF_IS_SECOND_SURROGATE((ch)) || (ch & 0xFFFE) == 0xFFFE) {
|
|
return 0; /* completely ignorable */
|
|
}
|
|
/* Make up an artifical CE from code point as per UCA */
|
|
order = 0xD08004C3 | (ch & 0xF000) << 12 | (ch & 0x0FFF) << 11;
|
|
}
|
|
}
|
|
return order; /* return the CE */
|
|
}
|
|
|
|
/* This function handles the special CEs like contractions, expansions, surrogates, Thai */
|
|
/* It is called by both getNextCE and getNextUCA */
|
|
uint32_t getSpecialCE(const UCollator *coll, collIterate *source, UErrorCode *status) {
|
|
int32_t i = 0; /* general counter */
|
|
uint32_t CE = *source->CEpos;
|
|
for (;;) {
|
|
const uint32_t *CEOffset = NULL;
|
|
const UChar *UCharOffset = NULL;
|
|
UChar schar, tchar;
|
|
uint32_t size = 0;
|
|
switch(getCETag(CE)) {
|
|
case NOT_FOUND_TAG:
|
|
/* This one is not found, and we'll let somebody else bother about it... no more games */
|
|
return CE;
|
|
break;
|
|
case SURROGATE_TAG:
|
|
/* pending surrogate discussion with Markus and Mark */
|
|
return UCOL_NOT_FOUND;
|
|
break;
|
|
case THAI_TAG:
|
|
/* Thai/Lao reordering */
|
|
if(source->isThai == TRUE) { /* if we encountered Thai prevowel & the string is not yet touched */
|
|
source->isThai = FALSE; /* We will touch the string */
|
|
if((source->len - source->pos) > UCOL_WRITABLE_BUFFER_SIZE) {
|
|
/* Problematic part - if the stack buffer is too small, we need to allocate */
|
|
/* However, somebody needs to keep track of that allocated space */
|
|
/* And context structure is not good for that */
|
|
/* allocate a new buffer - This is unfortunate and should be way smarter */
|
|
/*source->writableBuffer = (UChar *)ucol_getABuffer(coll, (source->len - source->pos)*sizeof(UChar));*/
|
|
}
|
|
UChar *sourceCopy = source->pos;
|
|
UChar *targetCopy = source->writableBuffer;
|
|
while(sourceCopy < source->len) {
|
|
if(UCOL_ISTHAIPREVOWEL(*(sourceCopy)) && /* This is the combination that needs to be swapped */
|
|
UCOL_ISTHAIBASECONSONANT(*(sourceCopy+1))) {
|
|
*(targetCopy) = *(sourceCopy+1);
|
|
*(targetCopy+1) = *(sourceCopy);
|
|
targetCopy+=2;
|
|
sourceCopy+=2;
|
|
} else {
|
|
*(targetCopy++) = *(sourceCopy++);
|
|
}
|
|
}
|
|
source->pos = source->writableBuffer;
|
|
source->len = targetCopy;
|
|
source->CEpos = source->toReturn = source->CEs;
|
|
CE = UCOL_IGNORABLE;
|
|
} else { /* we have already played with the string, so treat Thai as a length one expansion */
|
|
CEOffset = coll->expansion+getExpansionOffset(CE); /* find the offset to expansion table */
|
|
CE = *CEOffset++;
|
|
}
|
|
break;
|
|
case CONTRACTION_TAG:
|
|
/* This should handle contractions */
|
|
for (;;) {
|
|
/* First we position ourselves at the begining of contraction sequence */
|
|
const UChar *ContractionStart = UCharOffset = (UChar *)coll->image+getContractOffset(CE);
|
|
|
|
/* we need to convey the notion of having a backward search - most probably through the context object */
|
|
/* if (backwardsSearch) offset += contractionUChars[(int16_t)offset]; else UCharOffset++; */
|
|
UCharOffset++; /* skip the backward offset, see above */
|
|
if (source->pos>=source->len) { /* this is the end of string */
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex)); /* So we'll pick whatever we have at the point... */
|
|
source->pos--; /* I think, since we'll advance in the getCE */
|
|
break;
|
|
}
|
|
schar = *(++source->pos);
|
|
while(schar > (tchar = *UCharOffset)) { /* since the contraction codepoints should be ordered, we skip all that are smaller */
|
|
UCharOffset++;
|
|
}
|
|
if(schar != tchar) { /* we didn't find the correct codepoint. We can use either the first or the last CE */
|
|
if(tchar != 0xFFFF) {
|
|
UCharOffset = ContractionStart; /* We're not at the end, bailed out in the middle. Better use starting CE */
|
|
}
|
|
source->pos--; /* Spit out the last char of the string, wasn't tasty enough */
|
|
}
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
|
|
if(!isContraction(CE)) {
|
|
/* Maybe not */
|
|
/*source->pos--;*/ /* I think, since we'll advance in the getCE */
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case EXPANSION_TAG:
|
|
/* This should handle expansion. */
|
|
/* NOTE: we can encounter both continuations and expansions in an expansion! */
|
|
/* I have to decide where continuations are going to be dealt with */
|
|
CEOffset = (uint32_t *)coll->image+getExpansionOffset(CE); /* find the offset to expansion table */
|
|
size = getExpansionCount(CE);
|
|
CE = *CEOffset++;
|
|
if(size != 0) { /* if there are less than 16 elements in expansion, we don't terminate */
|
|
for(i = 1; i<size; i++) {
|
|
*(source->CEpos++) = *CEOffset++;
|
|
}
|
|
} else { /* else, we do */
|
|
while(*CEOffset != 0) {
|
|
*(source->CEpos++) = *CEOffset++;
|
|
}
|
|
}
|
|
/*source->toReturn++;*/
|
|
return CE;
|
|
break;
|
|
case CHARSET_TAG:
|
|
/* probably after 1.8 */
|
|
return UCOL_NOT_FOUND;
|
|
break;
|
|
default:
|
|
*status = U_INTERNAL_PROGRAM_ERROR;
|
|
CE=0;
|
|
break;
|
|
}
|
|
if (CE <= UCOL_NOT_FOUND) break;
|
|
}
|
|
return CE;
|
|
}
|
|
|
|
/* This should really be a macro */
|
|
/* However, it is used only when stack buffers are not sufficiently big, and then we're messed up performance wise */
|
|
/* anyway */
|
|
uint8_t *reallocateBuffer(uint8_t **secondaries, uint8_t *secStart, uint8_t *second, int32_t *secSize, UErrorCode *status) {
|
|
uint8_t *newStart = NULL;
|
|
|
|
if(secStart==second) {
|
|
newStart=(uint8_t*)uprv_malloc(*secSize*2);
|
|
if(newStart==NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(newStart, secStart, *secondaries-secStart);
|
|
} else {
|
|
newStart=(uint8_t*)uprv_realloc(secStart, *secSize*2);
|
|
if(newStart==NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
}
|
|
*secondaries=newStart+(*secondaries-secStart);
|
|
*secSize*=2;
|
|
return newStart;
|
|
}
|
|
|
|
|
|
/* This should really be a macro */
|
|
/* This function is used to reverse parts of a buffer. We need this operation when doing continuation */
|
|
/* secondaries in French */
|
|
/*
|
|
void uprv_ucol_reverse_buffer(uint8_t *start, uint8_t *end) {
|
|
uint8_t temp;
|
|
while(start<end) {
|
|
temp = *start;
|
|
*start++ = *end;
|
|
*end-- = temp;
|
|
}
|
|
}
|
|
*/
|
|
|
|
#define uprv_ucol_reverse_buffer(TYPE, start, end) { \
|
|
TYPE tempA; \
|
|
while((start)<(end)) { \
|
|
tempA = *(start); \
|
|
*(start)++ = *(end); \
|
|
*(end)-- = tempA; \
|
|
} \
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Following are the sortkey generation functions */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
#define MIN_VALUE 0x02
|
|
#define UCOL_VARIABLE_MAX 0x20
|
|
#define UCOL_NEW_IGNORABLE 0
|
|
|
|
/* sortkey API */
|
|
U_CAPI int32_t
|
|
ucol_getSortKey(const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
uint8_t *result,
|
|
int32_t resultLength)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
return ucol_calcSortKey(coll, source, sourceLength, &result, resultLength, FALSE, &status);
|
|
}
|
|
|
|
/* this function is called by the C++ API for sortkey generation */
|
|
U_CFUNC uint8_t *ucol_getSortKeyWithAllocation(const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
int32_t *resultLen) {
|
|
uint8_t *result = NULL;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
*resultLen = ucol_calcSortKey(coll, source, sourceLength, &result, 0, TRUE, &status);
|
|
return result;
|
|
}
|
|
|
|
|
|
/* This function tries to get the size of a sortkey. It will be invoked if the size of resulting buffer is 0 */
|
|
/* or if we run out of space while making a sortkey and want to return ASAP */
|
|
int32_t ucol_getSortKeySize(const UCollator *coll, collIterate *s, int32_t currentSize, UColAttributeValue strength, int32_t len) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
uint8_t compareSec = (strength >= UCOL_SECONDARY)?0:0xFF;
|
|
uint8_t compareTer = (strength >= UCOL_TERTIARY)?0:0xFF;
|
|
uint8_t compareQuad = (strength >= UCOL_QUATERNARY)?0:0xFF;
|
|
UBool compareIdent = (strength == UCOL_IDENTICAL);
|
|
UBool doCase = (coll->caseLevel == UCOL_ON);
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED);
|
|
|
|
uint8_t variableMax = coll->variableMax;
|
|
uint8_t UCOL_COMMON_BOT4 = variableMax+1;
|
|
uint8_t UCOL_BOT_COUNT4 = 0xFF - UCOL_COMMON_BOT4;
|
|
|
|
int32_t order = UCOL_NULLORDER;
|
|
uint16_t primary = 0;
|
|
uint8_t primary1 = 0;
|
|
uint8_t primary2 = 0;
|
|
uint8_t primary3 = 0;
|
|
uint32_t ce = 0;
|
|
uint8_t secondary = 0;
|
|
uint8_t tertiary = 0;
|
|
int32_t caseShift = 0;
|
|
uint32_t c2 = 0, c3 = 0, c4 = 0; /* variables for compression */
|
|
|
|
|
|
for(;;) {
|
|
order = ucol_getNextCE(coll, s, &status);
|
|
/*UCOL_GETNEXTCE(order, coll, *s, &status);*/
|
|
|
|
if(order == UCOL_NULLORDER) {
|
|
break;
|
|
}
|
|
|
|
/* We're saving order in ce, since we will destroy order in order to get primary, secondary, tertiary in order ;)*/
|
|
ce = order;
|
|
|
|
|
|
tertiary = (order & UCOL_TERTIARYORDERMASK);
|
|
secondary = (order >>= 8) & 0xFF;
|
|
primary3 = 0; /* the third primary */
|
|
primary2 = (order >>= 8) & 0xFF;;
|
|
primary1 = order >>= 8;
|
|
|
|
if(isFlagged(ce)) {
|
|
#if 0
|
|
if(isLongPrimary(ce)) {
|
|
/* if we have a long primary, we'll mark secondary unmarked & add min value to tertiary */
|
|
primary3 = secondary;
|
|
secondary = UCOL_UNMARKED;
|
|
tertiary ^= 0x40;
|
|
}
|
|
#endif /* we have decided to scrap long primaries */
|
|
tertiary ^= 0x80;
|
|
} else {
|
|
/* it appears tht something should be done with the case bit */
|
|
/* however, it is not clear when */
|
|
}
|
|
|
|
if(shifted && primary1 < variableMax && primary1 != 0) {
|
|
if(c4 > 0) {
|
|
currentSize += (c2/UCOL_BOT_COUNT4)+1;
|
|
c4 = 0;
|
|
}
|
|
currentSize++;
|
|
if(primary2 != 0) {
|
|
currentSize++;
|
|
}
|
|
} else {
|
|
/* Note: This code assumes that the table is well built i.e. not having 0 bytes where they are not supposed to be. */
|
|
/* Usually, we'll have non-zero primary1 & primary2, except in cases of LatinOne and friends, when primary2 will */
|
|
/* be zero with non zero primary1. primary3 is different than 0 only for long primaries - see above. */
|
|
if(primary1 != UCOL_NEW_IGNORABLE) {
|
|
currentSize++;
|
|
if(primary2 != UCOL_NEW_IGNORABLE) {
|
|
currentSize++;
|
|
if(primary3 != UCOL_NEW_IGNORABLE) {
|
|
currentSize++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(secondary > compareSec) { /* I think that != 0 test should be != IGNORABLE */
|
|
if (secondary == UCOL_COMMON2) {
|
|
c2++;
|
|
} else {
|
|
if(c2 > 0) {
|
|
if (secondary > UCOL_COMMON2) { // not necessary for 4th level.
|
|
currentSize += (c2/UCOL_TOP_COUNT2)+1;
|
|
} else {
|
|
currentSize += (c2/UCOL_BOT_COUNT2)+1;
|
|
}
|
|
c2 = 0;
|
|
}
|
|
currentSize++;
|
|
}
|
|
}
|
|
|
|
if(doCase) {
|
|
if (caseShift == 0) {
|
|
currentSize++;
|
|
caseShift = 7;
|
|
}
|
|
caseShift--;
|
|
}
|
|
|
|
if(tertiary > compareTer) { /* I think that != 0 test should be != IGNORABLE */
|
|
if (tertiary == UCOL_COMMON3) {
|
|
c3++;
|
|
} else {
|
|
if(c3 > 0) {
|
|
if (tertiary > UCOL_COMMON3) { // not necessary for 4th level.
|
|
currentSize += (c3/UCOL_TOP_COUNT3)+1;
|
|
} else {
|
|
currentSize += (c3/UCOL_BOT_COUNT3)+1;
|
|
}
|
|
c3 = 0;
|
|
}
|
|
currentSize++;
|
|
}
|
|
}
|
|
|
|
if(shifted && primary1 > compareQuad) {
|
|
c4++;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if(c2 > 0) {
|
|
currentSize += (c2/UCOL_BOT_COUNT2)+1;
|
|
}
|
|
|
|
if(c3 > 0) {
|
|
currentSize += (c3/UCOL_BOT_COUNT3)+1;
|
|
}
|
|
|
|
if(c4 > 0) {
|
|
currentSize += (c4/UCOL_BOT_COUNT4)+1;
|
|
}
|
|
|
|
if(compareIdent) {
|
|
currentSize += len*sizeof(UChar);
|
|
UChar *ident = s->string;
|
|
while(ident<s->len) {
|
|
if((*(ident) >> 8) + utf16fixup[*(ident) >> 11]<0x02) {
|
|
|
|
currentSize++;
|
|
}
|
|
if((*(ident) & 0xFF)<0x02) {
|
|
currentSize++;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
return currentSize;
|
|
|
|
}
|
|
|
|
/* This is the sortkey work horse function */
|
|
int32_t
|
|
ucol_calcSortKey(const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
uint8_t **result,
|
|
int32_t resultLength,
|
|
UBool allocatePrimary,
|
|
UErrorCode *status)
|
|
{
|
|
uint32_t i = 0; /* general purpose counter */
|
|
|
|
/* Stack allocated buffers for buffers we use */
|
|
uint8_t second[UCOL_MAX_BUFFER], tert[UCOL_MAX_BUFFER], caseB[UCOL_MAX_BUFFER], quad[UCOL_MAX_BUFFER];
|
|
|
|
uint8_t *primaries = *result, *secondaries = second, *tertiaries = tert, *cases = caseB, *quads = quad;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if(primaries == NULL && allocatePrimary == TRUE) {
|
|
primaries = *result = (uint8_t *)uprv_malloc(2*UCOL_MAX_BUFFER);
|
|
resultLength = 2*UCOL_MAX_BUFFER;
|
|
}
|
|
|
|
int32_t primSize = resultLength, secSize = UCOL_MAX_BUFFER, terSize = UCOL_MAX_BUFFER,
|
|
caseSize = UCOL_MAX_BUFFER, quadSize = UCOL_MAX_BUFFER;
|
|
|
|
int32_t sortKeySize = 1; /* it is always \0 terminated */
|
|
|
|
UChar normBuffer[UCOL_NORMALIZATION_GROWTH*UCOL_MAX_BUFFER];
|
|
UChar *normSource = normBuffer;
|
|
int32_t normSourceLen = UCOL_NORMALIZATION_GROWTH*UCOL_MAX_BUFFER;
|
|
|
|
int32_t len = (sourceLength == -1 ? u_strlen(source) : sourceLength);
|
|
|
|
uint8_t variableMax = coll->variableMax;
|
|
uint8_t UCOL_COMMON_BOT4 = variableMax+1;
|
|
uint8_t UCOL_BOT_COUNT4 = 0xFF - UCOL_COMMON_BOT4;
|
|
|
|
UColAttributeValue strength = coll->strength;
|
|
|
|
uint8_t compareSec = (strength >= UCOL_SECONDARY)?0:0xFF;
|
|
uint8_t compareTer = (strength >= UCOL_TERTIARY)?0:0xFF;
|
|
uint8_t compareQuad = (strength >= UCOL_QUATERNARY)?0:0xFF;
|
|
UBool compareIdent = (strength == UCOL_IDENTICAL);
|
|
UBool doCase = (coll->caseLevel == UCOL_ON);
|
|
UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && (compareSec == 0);
|
|
UBool upperFirst = (coll->caseFirst == UCOL_UPPER_FIRST) && (compareTer == 0);
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && (compareQuad == 0);
|
|
const uint8_t *scriptOrder = coll->scriptOrder;
|
|
|
|
/* support for special features like caselevel and funky secondaries */
|
|
uint8_t *frenchStartPtr = NULL;
|
|
uint8_t *frenchEndPtr = NULL;
|
|
uint32_t caseShift = 0;
|
|
|
|
sortKeySize += ((compareSec?0:1) + (compareTer?0:1) + (doCase?1:0) + (compareQuad?0:1) + (compareIdent?1:0));
|
|
|
|
collIterate s;
|
|
init_collIterate((UChar *)source, len, &s, FALSE);
|
|
|
|
/* If we need to normalize, we'll do it all at once at the beggining! */
|
|
UColAttributeValue normMode = coll->normalizationMode;
|
|
if(normMode != UCOL_OFF) {
|
|
normSourceLen = u_normalize(source, sourceLength, UNORM_NFD, 0, normSource, normSourceLen, status);
|
|
if(U_FAILURE(*status)) {
|
|
*status=U_ZERO_ERROR;
|
|
normSource = (UChar *) uprv_malloc((normSourceLen+1)*sizeof(UChar));
|
|
normSourceLen = u_normalize(source, sourceLength, UNORM_NFD, 0, normSource, (normSourceLen+1), status);
|
|
}
|
|
normSource[normSourceLen] = 0;
|
|
s.string = normSource;
|
|
s.pos = normSource;
|
|
s.len = normSource+normSourceLen;
|
|
}
|
|
|
|
len = s.len-s.pos;
|
|
|
|
if(resultLength == 0) {
|
|
return ucol_getSortKeySize(coll, &s, sortKeySize, strength, len);
|
|
}
|
|
|
|
int32_t minBufferSize = UCOL_MAX_BUFFER;
|
|
|
|
uint8_t *primStart = primaries;
|
|
uint8_t *secStart = secondaries;
|
|
uint8_t *terStart = tertiaries;
|
|
uint8_t *caseStart = cases;
|
|
uint8_t *quadStart = quads;
|
|
|
|
uint32_t order = 0;
|
|
uint32_t ce = 0;
|
|
|
|
uint8_t carry = 0;
|
|
uint8_t primary1 = 0;
|
|
uint8_t primary2 = 0;
|
|
uint8_t primary3 = 0;
|
|
uint8_t secondary = 0;
|
|
uint8_t tertiary = 0;
|
|
UBool caseBit = FALSE;
|
|
|
|
UBool finished = FALSE;
|
|
UBool resultOverflow = FALSE;
|
|
|
|
int32_t prevBuffSize = 0;
|
|
|
|
int32_t compressedSecs = 0;
|
|
|
|
uint32_t count2 = 0, count3 = 0, count4 = 0;
|
|
|
|
for(;;) {
|
|
for(i=prevBuffSize; i<minBufferSize; ++i) {
|
|
|
|
order = ucol_getNextCE(coll, &s, status);
|
|
/*UCOL_GETNEXTCENEW(order, coll, s, status);*/
|
|
|
|
if(order == UCOL_NULLORDER) {
|
|
finished = TRUE;
|
|
break;
|
|
}
|
|
|
|
/* We're saving order in ce, since we will destroy order in order to get primary, secondary, tertiary in order ;)*/
|
|
ce = order;
|
|
|
|
caseBit = ((tertiary & 0x40) != 0);
|
|
|
|
//tertiary = (order & UCOL_TERTIARYORDERMASK);
|
|
tertiary = (order & 0x3f); /* this is temporary - removing case bit */
|
|
secondary = (order >>= 8) & 0xFF;
|
|
primary3 = 0; /* the third primary */
|
|
primary2 = (order >>= 8) & 0xFF;;
|
|
primary1 = order >>= 8;
|
|
|
|
if(isFlagged(ce)) {
|
|
#if 0
|
|
if(isLongPrimary(ce)) {
|
|
/* if we have a long primary, we'll mark secondary unmarked & add min value to tertiary */
|
|
primary3 = secondary;
|
|
secondary = UCOL_UNMARKED;
|
|
if(scriptOrder != NULL) {
|
|
primary1 = scriptOrder[primary1];
|
|
}
|
|
}
|
|
#endif /* we have decided to scrap long primaries */
|
|
tertiary &= 0x3F;
|
|
} else {
|
|
/* it appears tht something should be done with the case bit */
|
|
/* however, it is not clear when */
|
|
if(upperFirst) { /* if there is a case bit */
|
|
/* Upper cases have this bit turned on, so that they always come after the lower cases */
|
|
/* if we want to reverse this situation, we'll flip this bit */
|
|
/*tertiary ^= UCOL_CASE_BIT_MASK; */ /* temporary removing case bit */
|
|
caseBit = !caseBit;
|
|
}
|
|
if(scriptOrder != NULL) {
|
|
primary1 = scriptOrder[primary1];
|
|
}
|
|
}
|
|
|
|
|
|
/* In the code below, every increase in any of buffers is followed by the increase to */
|
|
/* sortKeySize - this might look tedious, but it is needed so that we can find out if */
|
|
/* we're using too much space and need to reallocate the primary buffer or easily bail */
|
|
/* out to ucol_getSortKeySizeNew. */
|
|
|
|
if(shifted && primary1 < variableMax && primary1 != 0) {
|
|
if(count4 > 0) {
|
|
while (count4 >= UCOL_BOT_COUNT4) {
|
|
*quads++ = UCOL_COMMON_BOT4 + UCOL_BOT_COUNT4;
|
|
sortKeySize++;
|
|
count4 -= UCOL_BOT_COUNT4;
|
|
}
|
|
*quads++ = UCOL_COMMON_BOT4 + count4;
|
|
sortKeySize++;
|
|
count4 = 0;
|
|
}
|
|
/* We are dealing with a variable and we're treating them as shifted */
|
|
/* This is a shifted ignorable */
|
|
*quads++ = primary1;
|
|
sortKeySize++;
|
|
if(primary2 != 0) {
|
|
*quads++ = primary2;
|
|
sortKeySize++;
|
|
}
|
|
} else {
|
|
/* Note: This code assumes that the table is well built i.e. not having 0 bytes where they are not supposed to be. */
|
|
/* Usually, we'll have non-zero primary1 & primary2, except in cases of LatinOne and friends, when primary2 will */
|
|
/* be zero with non zero primary1. primary3 is different than 0 only for long primaries - see above. */
|
|
if(primary1 != UCOL_NEW_IGNORABLE) {
|
|
*primaries++ = primary1; /* scriptOrder[primary1]; */ /* This is the script ordering thingie */
|
|
sortKeySize++;
|
|
if(primary2 != UCOL_NEW_IGNORABLE) {
|
|
*primaries++ = primary2; /* second part */
|
|
sortKeySize++;
|
|
if(primary3 != UCOL_NEW_IGNORABLE) {
|
|
*primaries++ = primary3; /* third part */
|
|
sortKeySize++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(doCase) {
|
|
if (caseShift == 0) {
|
|
*cases++ = 0x80;
|
|
sortKeySize++;
|
|
caseShift = 7;
|
|
}
|
|
/**(cases-1) |= (tertiary & 0x80) >> (8-caseShift--);*/
|
|
*(cases-1) |= caseBit << (caseShift--);
|
|
}
|
|
|
|
if(secondary > compareSec) {
|
|
/* This is compression code. */
|
|
if (secondary == UCOL_COMMON2 && !(isContinuation(ce))) {
|
|
++count2;
|
|
} else {
|
|
if (count2 > 0) {
|
|
if (secondary > UCOL_COMMON2) { // not necessary for 4th level.
|
|
while (count2 >= UCOL_TOP_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_TOP2 - UCOL_TOP_COUNT2;
|
|
sortKeySize++;
|
|
count2 -= UCOL_TOP_COUNT2;
|
|
}
|
|
*secondaries++ = UCOL_COMMON_TOP2 - count2;
|
|
sortKeySize++;
|
|
} else {
|
|
while (count2 >= UCOL_BOT_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_BOT2 + UCOL_BOT_COUNT2;
|
|
sortKeySize++;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = UCOL_COMMON_BOT2 + count2;
|
|
sortKeySize++;
|
|
}
|
|
count2 = 0;
|
|
}
|
|
*secondaries++ = secondary;
|
|
sortKeySize++;
|
|
if(isFrenchSec) {
|
|
/* Do the special handling for French secondaries */
|
|
/* We need to get continuation elements and do intermediate restore */
|
|
/* abc1c2c3de with french secondaries need to be edc1c2c3ba NOT edc3c2c1ba */
|
|
if(isContinuation(ce)) {
|
|
if (frenchStartPtr == NULL) {
|
|
frenchStartPtr = secondaries - 2;
|
|
}
|
|
frenchEndPtr = secondaries-1;
|
|
} else if (frenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint8_t, frenchStartPtr, frenchEndPtr);
|
|
frenchStartPtr = NULL;
|
|
}
|
|
}
|
|
}
|
|
if(tertiary > compareTer) {
|
|
/* This is compression code. */
|
|
/* sequence size check is included in the if clause */
|
|
if (tertiary == UCOL_COMMON3 && !(isContinuation(ce))) {
|
|
++count3;
|
|
} else {
|
|
if(tertiary > UCOL_COMMON3) {
|
|
tertiary |= UCOL_FLAG_BIT_MASK;
|
|
}
|
|
if (count3 > 0) {
|
|
if (tertiary > UCOL_COMMON3) {
|
|
while (count3 >= UCOL_TOP_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_TOP3 - UCOL_TOP_COUNT3;
|
|
sortKeySize++;
|
|
count3 -= UCOL_TOP_COUNT3;
|
|
}
|
|
*tertiaries++ = UCOL_COMMON_TOP3 - count3;
|
|
sortKeySize++;
|
|
} else {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
sortKeySize++;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + count3;
|
|
sortKeySize++;
|
|
}
|
|
count3 = 0;
|
|
}
|
|
*tertiaries++ = tertiary;
|
|
sortKeySize++;
|
|
}
|
|
if(shifted && primary1 > compareQuad) {
|
|
/* here is only the compression bit, since only one value can happen here: 0xFF */
|
|
/* sequence size check is included in the if clause */
|
|
count4++;
|
|
/*
|
|
if((uint8_t)(*(quads-1)-variableMax) > (0xFF-variableMax-1)) {
|
|
*quads++ = variableMax;
|
|
sortKeySize++;
|
|
} else {
|
|
(*(quads-1))++;
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(sortKeySize>resultLength) { /* We have stepped over the primary buffer */
|
|
if(allocatePrimary == FALSE) { /* need to save our butts if we cannot reallocate */
|
|
resultOverflow = TRUE;
|
|
sortKeySize = ucol_getSortKeySize(coll, &s, sortKeySize, strength, len);
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
finished = TRUE;
|
|
break;
|
|
} else { /* It's much nicer if we can actually reallocate */
|
|
uint8_t *newStart;
|
|
newStart = (uint8_t *)uprv_realloc(primStart, 2*sortKeySize);
|
|
if(primStart == NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
finished = TRUE;
|
|
break;
|
|
}
|
|
primaries=newStart+(primaries-primStart);
|
|
resultLength = 2*sortKeySize;
|
|
primStart = *result = newStart;
|
|
}
|
|
}
|
|
}
|
|
if(finished) {
|
|
break;
|
|
} else {
|
|
prevBuffSize = minBufferSize;
|
|
secStart = reallocateBuffer(&secondaries, secStart, second, &secSize, status);
|
|
terStart = reallocateBuffer(&tertiaries, terStart, tert, &terSize, status);
|
|
caseStart = reallocateBuffer(&cases, caseStart, cases, &caseSize, status);
|
|
quadStart = reallocateBuffer(&quads, quadStart, quads, &quadSize, status);
|
|
minBufferSize *= 2;
|
|
}
|
|
}
|
|
|
|
if(U_SUCCESS(*status)) {
|
|
/* we have done all the CE's, now let's put them together to form a key */
|
|
if(compareSec == 0) {
|
|
if (count2 > 0) {
|
|
while (count2 >= UCOL_BOT_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_BOT2 + UCOL_BOT_COUNT2;
|
|
sortKeySize++;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = UCOL_COMMON_BOT2 + count2;
|
|
sortKeySize++;
|
|
}
|
|
uint32_t secsize = secondaries-secStart;
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
if(isFrenchSec) { /* do the reverse copy */
|
|
/* If there are any unresolved continuation secondaries, reverse them here so that we can reverse the whole secondary thing */
|
|
if(frenchStartPtr != NULL) {
|
|
uprv_ucol_reverse_buffer(uint8_t, frenchStartPtr, frenchEndPtr);
|
|
}
|
|
for(i = 1; i<secsize; i++) {
|
|
*(primaries++) = *(secondaries-i-1);
|
|
}
|
|
} else {
|
|
uprv_memcpy(primaries, secStart, secsize);
|
|
primaries += secsize;
|
|
}
|
|
|
|
}
|
|
|
|
if(doCase) {
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t casesize = cases - caseStart;
|
|
uprv_memcpy(primaries, caseStart, casesize);
|
|
primaries += casesize;
|
|
}
|
|
|
|
if(compareTer == 0) {
|
|
if (count3 > 0) {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
sortKeySize++;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + count3;
|
|
sortKeySize++;
|
|
}
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t tersize = tertiaries - terStart;
|
|
uprv_memcpy(primaries, terStart, tersize);
|
|
primaries += tersize;
|
|
if(compareQuad == 0) {
|
|
if(count4 > 0) {
|
|
while (count4 >= UCOL_BOT_COUNT4) {
|
|
*quads++ = UCOL_COMMON_BOT4 + UCOL_BOT_COUNT4;
|
|
sortKeySize++;
|
|
count4 -= UCOL_BOT_COUNT4;
|
|
}
|
|
*quads++ = UCOL_COMMON_BOT4 + count4;
|
|
sortKeySize++;
|
|
}
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t quadsize = quads - quadStart;
|
|
uprv_memcpy(primaries, quadStart, quadsize);
|
|
primaries += quadsize;
|
|
}
|
|
|
|
if(compareIdent) {
|
|
UChar *ident = s.string;
|
|
/* const UChar *ident = source;*/
|
|
uint8_t idByte = 0;
|
|
sortKeySize += len * sizeof(UChar);
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
if(sortKeySize <= resultLength) {
|
|
while(ident < s.len) {
|
|
/* while(ident < source+sourceLength) {*/
|
|
idByte = (*(ident) >> 8) + utf16fixup[*(ident) >> 11];
|
|
if(idByte < 0x02) {
|
|
if(sortKeySize < resultLength) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = idByte + 1;
|
|
}
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
idByte = (*(ident) & 0xFF);
|
|
if(idByte < 0x02) {
|
|
if(sortKeySize < resultLength) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = idByte + 1;
|
|
}
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
|
|
ident++;
|
|
}
|
|
} else {
|
|
while(ident < s.len) {
|
|
idByte = (*(ident) >> 8) + utf16fixup[*(ident) >> 11];
|
|
if(idByte < 0x02) {
|
|
sortKeySize++;
|
|
}
|
|
idByte = (*(ident) & 0xFF);
|
|
if(idByte < 0x02) {
|
|
sortKeySize++;
|
|
}
|
|
ident++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*(primaries++) = '\0';
|
|
} else {
|
|
sortKeySize = 0;
|
|
}
|
|
|
|
if(terStart != tert) {
|
|
uprv_free(terStart);
|
|
uprv_free(secStart);
|
|
uprv_free(caseStart);
|
|
uprv_free(quadStart);
|
|
}
|
|
|
|
if(normSource != normBuffer) {
|
|
uprv_free(normSource);
|
|
}
|
|
|
|
return sortKeySize;
|
|
}
|
|
|
|
/* This is a trick string compare function that goes in and uses sortkeys to compare */
|
|
/* It is used when compare gets in trouble and needs to bail out */
|
|
UCollationResult ucol_compareUsingSortKeys(const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
const UChar *target,
|
|
int32_t targetLength)
|
|
{
|
|
uint8_t sourceKey[UCOL_MAX_BUFFER], targetKey[UCOL_MAX_BUFFER];
|
|
uint8_t *sourceKeyP = sourceKey;
|
|
uint8_t *targetKeyP = targetKey;
|
|
int32_t sourceKeyLen = UCOL_MAX_BUFFER, targetKeyLen = UCOL_MAX_BUFFER;
|
|
|
|
sourceKeyLen = ucol_getSortKey(coll, source, sourceLength, sourceKeyP, sourceKeyLen);
|
|
if(sourceKeyLen > UCOL_MAX_BUFFER) {
|
|
sourceKeyP = (uint8_t*)uprv_malloc(sourceKeyLen*sizeof(uint8_t));
|
|
sourceKeyLen = ucol_getSortKey(coll, source, sourceLength, sourceKeyP, sourceKeyLen);
|
|
}
|
|
|
|
targetKeyLen = ucol_getSortKey(coll, target, targetLength, targetKeyP, targetKeyLen);
|
|
if(targetKeyLen > UCOL_MAX_BUFFER) {
|
|
targetKeyP = (uint8_t*)uprv_malloc(targetKeyLen*sizeof(uint8_t));
|
|
targetKeyLen = ucol_getSortKey(coll, target, targetLength, targetKeyP, targetKeyLen);
|
|
}
|
|
|
|
int32_t result = uprv_strcmp((const char*)sourceKeyP, (const char*)targetKeyP);
|
|
|
|
if(sourceKeyP != sourceKey) {
|
|
uprv_free(sourceKeyP);
|
|
}
|
|
|
|
if(targetKeyP != targetKey) {
|
|
uprv_free(targetKeyP);
|
|
}
|
|
|
|
if(result<0) {
|
|
return UCOL_LESS;
|
|
} else if(result>0) {
|
|
return UCOL_GREATER;
|
|
} else {
|
|
return UCOL_EQUAL;
|
|
}
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* Following are the functions that deal with the properties of a collator */
|
|
/* there are new APIs and some compatibility APIs */
|
|
/****************************************************************************/
|
|
|
|
/* Attribute setter API */
|
|
U_CAPI void ucol_setAttribute(UCollator *coll, UColAttribute attr, UColAttributeValue value, UErrorCode *status) {
|
|
switch(attr) {
|
|
case UCOL_FRENCH_COLLATION: /* attribute for direction of secondary weights*/
|
|
if(value == UCOL_ON) {
|
|
coll->frenchCollation = UCOL_ON;
|
|
coll->frenchCollationisDefault = FALSE;
|
|
} else if (value == UCOL_OFF) {
|
|
coll->frenchCollation = UCOL_OFF;
|
|
coll->frenchCollationisDefault = FALSE;
|
|
} else if (value == UCOL_DEFAULT) {
|
|
coll->frenchCollationisDefault = TRUE;
|
|
coll->frenchCollation = coll->image->frenchCollation;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_ALTERNATE_HANDLING: /* attribute for handling variable elements*/
|
|
if(value == UCOL_SHIFTED) {
|
|
coll->alternateHandling = UCOL_SHIFTED;
|
|
coll->alternateHandlingisDefault = FALSE;
|
|
} else if (value == UCOL_NON_IGNORABLE) {
|
|
coll->alternateHandling = UCOL_NON_IGNORABLE;
|
|
coll->alternateHandlingisDefault = FALSE;
|
|
} else if (value == UCOL_DEFAULT) {
|
|
coll->alternateHandlingisDefault = TRUE;
|
|
coll->alternateHandling = coll->image->alternateHandling ;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_CASE_FIRST: /* who goes first, lower case or uppercase */
|
|
if(value == UCOL_LOWER_FIRST) {
|
|
coll->caseFirst = UCOL_LOWER_FIRST;
|
|
coll->caseFirstisDefault = FALSE;
|
|
} else if (value == UCOL_UPPER_FIRST) {
|
|
coll->caseFirst = UCOL_UPPER_FIRST;
|
|
coll->caseFirstisDefault = FALSE;
|
|
} else if (value == UCOL_DEFAULT) {
|
|
coll->caseFirst = coll->image->caseFirst;
|
|
coll->caseFirstisDefault = TRUE;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_CASE_LEVEL: /* do we have an extra case level */
|
|
if(value == UCOL_ON) {
|
|
coll->caseLevel = UCOL_ON;
|
|
coll->caseLevelisDefault = FALSE;
|
|
} else if (value == UCOL_OFF) {
|
|
coll->caseLevel = UCOL_OFF;
|
|
coll->caseLevelisDefault = FALSE;
|
|
} else if (value == UCOL_DEFAULT) {
|
|
coll->caseLevel = coll->image->caseLevel;
|
|
coll->caseLevelisDefault = TRUE;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_NORMALIZATION_MODE: /* attribute for normalization */
|
|
if(value == UCOL_ON) {
|
|
coll->normalizationMode = UCOL_ON;
|
|
coll->normalizationModeisDefault = FALSE;
|
|
} else if (value == UCOL_OFF) {
|
|
coll->normalizationMode = UCOL_OFF;
|
|
coll->normalizationModeisDefault = FALSE;
|
|
} else if (value == UCOL_ON_WITHOUT_HANGUL) {
|
|
coll->normalizationMode = UCOL_ON_WITHOUT_HANGUL ;
|
|
coll->normalizationModeisDefault = FALSE;
|
|
} else if (value == UCOL_DEFAULT) {
|
|
coll->normalizationModeisDefault = TRUE;
|
|
coll->normalizationMode = coll->image->normalizationMode;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_STRENGTH: /* attribute for strength */
|
|
if (value == UCOL_DEFAULT) {
|
|
coll->strengthisDefault = TRUE;
|
|
coll->strength = coll->image->strength;
|
|
} else if (value <= UCOL_IDENTICAL) {
|
|
coll->strengthisDefault = FALSE;
|
|
coll->strength = value;
|
|
} else {
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR ;
|
|
}
|
|
break;
|
|
case UCOL_ATTRIBUTE_COUNT:
|
|
default:
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
U_CAPI UColAttributeValue ucol_getAttribute(const UCollator *coll, UColAttribute attr, UErrorCode *status) {
|
|
switch(attr) {
|
|
case UCOL_FRENCH_COLLATION: /* attribute for direction of secondary weights*/
|
|
if(coll->frenchCollationisDefault) {
|
|
return coll->image->frenchCollation;
|
|
} else {
|
|
return coll->frenchCollation;
|
|
}
|
|
break;
|
|
case UCOL_ALTERNATE_HANDLING: /* attribute for handling variable elements*/
|
|
if(coll->alternateHandlingisDefault) {
|
|
return coll->image->alternateHandling;
|
|
} else {
|
|
return coll->alternateHandling;
|
|
}
|
|
break;
|
|
case UCOL_CASE_FIRST: /* who goes first, lower case or uppercase */
|
|
if(coll->caseFirstisDefault) {
|
|
return coll->image->caseFirst;
|
|
} else {
|
|
return coll->caseFirst;
|
|
}
|
|
break;
|
|
case UCOL_CASE_LEVEL: /* do we have an extra case level */
|
|
if(coll->caseLevelisDefault) {
|
|
return coll->image->caseLevel;
|
|
} else {
|
|
return coll->caseLevel;
|
|
}
|
|
break;
|
|
case UCOL_NORMALIZATION_MODE: /* attribute for normalization */
|
|
if(coll->normalizationModeisDefault) {
|
|
return coll->image->normalizationMode;
|
|
} else {
|
|
return coll->normalizationMode;
|
|
}
|
|
break;
|
|
case UCOL_STRENGTH: /* attribute for strength */
|
|
if(coll->strengthisDefault) {
|
|
return coll->image->strength;
|
|
} else {
|
|
return coll->strength;
|
|
}
|
|
break;
|
|
case UCOL_ATTRIBUTE_COUNT:
|
|
default:
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
break;
|
|
}
|
|
return UCOL_DEFAULT;
|
|
}
|
|
|
|
U_CAPI void
|
|
ucol_setNormalization( UCollator *coll,
|
|
UNormalizationMode mode)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
switch(mode) {
|
|
case UCOL_NO_NORMALIZATION:
|
|
ucol_setAttribute(coll, UCOL_NORMALIZATION_MODE, UCOL_OFF, &status);
|
|
break;
|
|
case UCOL_DECOMP_CAN:
|
|
ucol_setAttribute(coll, UCOL_NORMALIZATION_MODE, UCOL_ON, &status);
|
|
break;
|
|
default:
|
|
/* Shouldn't get here. */
|
|
/* This is quite a bad API */
|
|
/* deprecate */
|
|
/* *status = U_ILLEGAL_ARGUMENT_ERROR; */
|
|
return;
|
|
}
|
|
}
|
|
|
|
U_CAPI UNormalizationMode
|
|
ucol_getNormalization(const UCollator* coll)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
if(ucol_getAttribute(coll, UCOL_NORMALIZATION_MODE, &status) == UCOL_ON) {
|
|
return UCOL_DECOMP_CAN;
|
|
} else {
|
|
return UCOL_NO_NORMALIZATION;
|
|
}
|
|
}
|
|
|
|
U_CAPI void
|
|
ucol_setStrength( UCollator *coll,
|
|
UCollationStrength strength)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
ucol_setAttribute(coll, UCOL_STRENGTH, strength, &status);
|
|
}
|
|
|
|
U_CAPI UCollationStrength
|
|
ucol_getStrength(const UCollator *coll)
|
|
{
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
return ucol_getAttribute(coll, UCOL_STRENGTH, &status);
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Following are misc functions */
|
|
/* there are new APIs and some compatibility APIs */
|
|
/****************************************************************************/
|
|
|
|
U_CAPI UCollator *ucol_safeClone(const UCollator *coll, void *stackBuffer, uint32_t bufferSize, UErrorCode *status) {
|
|
/*return (UCollatorOld *)(((RuleBasedCollator *)coll)->safeClone());*/
|
|
return 0;
|
|
}
|
|
|
|
U_CAPI int32_t ucol_getRulesEx(const UCollator *coll, UColRuleOption delta, UChar *buffer, int32_t bufferLen) {
|
|
return 0;
|
|
}
|
|
|
|
U_CAPI const UChar*
|
|
ucol_getRules( const UCollator *coll,
|
|
int32_t *length)
|
|
{
|
|
/*
|
|
const UnicodeString& rules = ((RuleBasedCollator*)coll)->getRules();
|
|
*length = rules.length();
|
|
return rules.getUChars();
|
|
*/
|
|
if(coll->rules != NULL) {
|
|
*length = u_strlen(coll->rules);
|
|
return coll->rules;
|
|
} else {
|
|
*length = 0;
|
|
return &coll->zero;
|
|
}
|
|
}
|
|
|
|
U_CAPI int32_t
|
|
ucol_getDisplayName( const char *objLoc,
|
|
const char *dispLoc,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status)
|
|
{
|
|
if(U_FAILURE(*status)) return -1;
|
|
/*
|
|
UnicodeString dst(result, resultLength, resultLength);
|
|
Collator::getDisplayName(Locale(objLoc), Locale(dispLoc), dst);
|
|
int32_t actLen;
|
|
T_fillOutputParams(&dst, result, resultLength, &actLen, status);
|
|
return actLen;
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
U_CAPI const char*
|
|
ucol_getAvailable(int32_t index)
|
|
{
|
|
return uloc_getAvailable(index);
|
|
}
|
|
|
|
U_CAPI int32_t
|
|
ucol_countAvailable()
|
|
{
|
|
return uloc_countAvailable();
|
|
}
|
|
|
|
U_CAPI void
|
|
ucol_getVersion(const UCollator* coll,
|
|
UVersionInfo versionInfo)
|
|
{
|
|
/*((Collator*)coll)->getVersion(versionInfo);*/
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Following are the string compare functions */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
#define UCOL_CHK_QUAD if(checkQuad && shifted) { \
|
|
uint32_t quadSOrder = (pSOrder < variableMax)?pSOrder:0xFFFF; \
|
|
uint32_t quadTOrder = (pTOrder < variableMax)?pTOrder:0xFFFF; \
|
|
if((quadSOrder!=quadTOrder)) { \
|
|
result=(quadSOrder<quadTOrder)?UCOL_LESS:UCOL_GREATER; \
|
|
checkQuad = FALSE; \
|
|
} \
|
|
}
|
|
|
|
/* compare two strings... Can get interesting */
|
|
U_CAPI UCollationResult
|
|
ucol_strcoll( const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
const UChar *target,
|
|
int32_t targetLength)
|
|
{
|
|
/* check if source and target are valid strings */
|
|
if (((source == 0) && (target == 0)) ||
|
|
((sourceLength == 0) && (targetLength == 0)))
|
|
{
|
|
return UCOL_EQUAL;
|
|
}
|
|
|
|
UCollationResult result = UCOL_EQUAL;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
UChar normSource[UCOL_MAX_BUFFER], normTarget[UCOL_MAX_BUFFER];
|
|
UChar *normSourceP = normSource;
|
|
UChar *normTargetP = normTarget;
|
|
uint32_t normSourceLength = UCOL_MAX_BUFFER, normTargetLength = UCOL_MAX_BUFFER;
|
|
|
|
collIterate sColl, tColl;
|
|
|
|
if(coll->normalizationMode == UCOL_OFF) {
|
|
init_collIterate(source, sourceLength == -1 ? u_strlen(source) : sourceLength, &sColl, FALSE);
|
|
init_collIterate(target, targetLength == -1 ? u_strlen(target) : targetLength, &tColl, FALSE);
|
|
} else { /* TODO: This is bad behaved if we're working with small buffers */
|
|
/* We really need the normalization quick check here*/
|
|
UNormalizationMode normMode = ucol_getNormalization(coll);
|
|
normSourceLength = u_normalize(source, sourceLength, normMode, 0, normSource, normSourceLength, &status);
|
|
/* if we don't have enough space in buffers, we'll recursively call strcoll, so that we have single point */
|
|
/* of exit - to free buffers we allocated. Otherwise, returns from strcoll are in various places and it */
|
|
/* would be hard to track all the exit points. */
|
|
if(U_FAILURE(status)) { /* This would be buffer overflow */
|
|
UColAttributeValue mode = coll->normalizationMode;
|
|
normSourceP = (UChar *)uprv_malloc((normSourceLength+1)*sizeof(UChar));
|
|
status = U_ZERO_ERROR;
|
|
normSourceLength = u_normalize(source, sourceLength, normMode, 0, normSourceP, normSourceLength+1, &status);
|
|
normTargetLength = u_normalize(target, targetLength, normMode, 0, normTargetP, normTargetLength, &status);
|
|
if(U_FAILURE(status)) { /* This would be buffer overflow */
|
|
normTargetP = (UChar *)uprv_malloc((normTargetLength+1)*sizeof(UChar));
|
|
status = U_ZERO_ERROR;
|
|
normTargetLength = u_normalize(target, targetLength, normMode, 0, normTargetP, normTargetLength+1, &status);
|
|
}
|
|
((UCollator *)coll)->normalizationMode = UCOL_OFF;
|
|
UCollationResult result = ucol_strcoll(coll, normSourceP, normSourceLength, normTargetP, normTargetLength);
|
|
((UCollator *)coll)->normalizationMode = mode;
|
|
uprv_free(normSourceP);
|
|
if(normTargetP != normTarget) {
|
|
uprv_free(normTargetP);
|
|
}
|
|
return result;
|
|
}
|
|
normTargetLength = u_normalize(target, targetLength, normMode, 0, normTarget, normTargetLength, &status);
|
|
if(U_FAILURE(status)) { /* This would be buffer overflow */
|
|
UColAttributeValue mode = coll->normalizationMode;
|
|
normTargetP = (UChar *)uprv_malloc((normTargetLength+1)*sizeof(UChar));
|
|
status = U_ZERO_ERROR;
|
|
normTargetLength = u_normalize(target, targetLength, normMode, 0, normTargetP, normTargetLength+1, &status);
|
|
((UCollator *)coll)->normalizationMode = UCOL_OFF;
|
|
UCollationResult result = ucol_strcoll(coll, normSourceP, normSourceLength, normTargetP, normTargetLength);
|
|
((UCollator *)coll)->normalizationMode = mode;
|
|
uprv_free(normTargetP);
|
|
return result;
|
|
}
|
|
init_collIterate(normSource, normSourceLength, &sColl, TRUE);
|
|
init_collIterate(normTarget, normTargetLength, &tColl, TRUE);
|
|
}
|
|
|
|
if (U_FAILURE(status))
|
|
{
|
|
return UCOL_EQUAL;
|
|
}
|
|
|
|
UColAttributeValue strength = coll->strength;
|
|
uint32_t sOrder=UCOL_NULLORDER, tOrder=UCOL_NULLORDER;
|
|
uint32_t pSOrder, pTOrder;
|
|
UBool gets = TRUE, gett = TRUE;
|
|
UBool initialCheckSecTer = (strength >= UCOL_SECONDARY);
|
|
|
|
uint8_t variableMax = coll->variableMax;
|
|
UBool checkSecTer = initialCheckSecTer;
|
|
UBool checkTertiary = (strength >= UCOL_TERTIARY);
|
|
UBool checkQuad = (strength >= UCOL_QUATERNARY);
|
|
UBool checkIdent = (strength == UCOL_IDENTICAL);
|
|
UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && checkSecTer;
|
|
UBool upperFirst = (coll->caseFirst == UCOL_UPPER_FIRST) && checkTertiary;
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && checkQuad;
|
|
|
|
uint32_t sCEsArray[512], tCEsArray[512];
|
|
uint32_t *sCEs = sCEsArray, *tCEs = tCEsArray;
|
|
uint32_t *sCEend = sCEs+512, *tCEend = tCEs+512;
|
|
|
|
uint8_t LVT = shifted*variableMax;
|
|
|
|
if(!isFrenchSec) {
|
|
for(;;)
|
|
{
|
|
if(sCEs == sCEend || tCEs == tCEend) {
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
/* Get the next collation element in each of the strings, unless */
|
|
/* we've been requested to skip it. */
|
|
if (gets)
|
|
{
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
*(sCEs++) = sOrder;
|
|
|
|
}
|
|
gets = TRUE;
|
|
|
|
if (gett)
|
|
{
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
*(tCEs++) = tOrder;
|
|
}
|
|
gett = TRUE;
|
|
|
|
/* If we've hit the end of one of the strings, jump out of the loop */
|
|
if ((sOrder == UCOL_NULLORDER)||
|
|
(tOrder == UCOL_NULLORDER)) {
|
|
break;
|
|
} else { /* probably some more processing */
|
|
sOrder &= 0xFFFFFFBF;
|
|
tOrder &= 0xFFFFFFBF;
|
|
}
|
|
|
|
/* If there's no difference at this position, we can skip to the */
|
|
/* next one. */
|
|
if (sOrder == tOrder)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (sOrder == UCOL_IGNORABLE)
|
|
{
|
|
/* The entire source element is ignorable. */
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
continue;
|
|
}
|
|
|
|
if (tOrder == UCOL_IGNORABLE)
|
|
{
|
|
gets = FALSE;
|
|
continue;
|
|
}
|
|
|
|
/* Compare primary differences first. */
|
|
pSOrder = UCOL_PRIMARYORDER(sOrder);
|
|
pTOrder = UCOL_PRIMARYORDER(tOrder);
|
|
|
|
if (pSOrder != pTOrder)
|
|
{
|
|
/* we need to get the shifted thing in here also */
|
|
/* The source and target elements aren't ignorable, but it's still possible */
|
|
/* for the primary component of one of the elements to be ignorable.... */
|
|
if (pSOrder <= LVT) { /* primary order in source is ignorable */
|
|
gett = FALSE;
|
|
} else if (pTOrder <= LVT) {
|
|
gets = FALSE;
|
|
} else {
|
|
/* Neither of the orders is ignorable, and we already know that the primary */
|
|
/* orders are different because of the (pSOrder != pTOrder) test above. */
|
|
/* Record the difference and stop the comparison. */
|
|
if (pSOrder < pTOrder)
|
|
{
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
} else { /* else of if ( pSOrder != pTOrder )*/
|
|
/* primary order is the same, but complete order is different. So there*/
|
|
/* are no base elements at this point, only ignorables (Since the strings are*/
|
|
/* normalized) */
|
|
|
|
if (checkSecTer) {
|
|
/* a secondary or tertiary difference may still matter */
|
|
uint32_t secSOrder = UCOL_SECONDARYORDER(sOrder);
|
|
uint32_t secTOrder = UCOL_SECONDARYORDER(tOrder);
|
|
|
|
if (secSOrder != secTOrder) {
|
|
/* there is a secondary difference */
|
|
result = (secSOrder < secTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
} else {
|
|
if (checkTertiary) {
|
|
/* a tertiary difference may still matter */
|
|
uint32_t terSOrder = UCOL_TERTIARYORDER(sOrder);
|
|
uint32_t terTOrder = UCOL_TERTIARYORDER(tOrder);
|
|
|
|
if (terSOrder != terTOrder) {
|
|
/* there is a tertiary difference */
|
|
result = (terSOrder < terTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is TERTIARY) */
|
|
checkTertiary = FALSE;
|
|
} else if(checkQuad && shifted) { /* try shifted & stuff */
|
|
uint32_t quadSOrder = (pSOrder < variableMax)?pSOrder:0xFFFF;
|
|
uint32_t quadTOrder = (pTOrder < variableMax)?pTOrder:0xFFFF;
|
|
if(quadSOrder != quadTOrder) {
|
|
result = (quadSOrder < quadTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
checkQuad = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} /* if (checkSecTer) */
|
|
|
|
} /* if ( pSOrder != pTOrder ) */
|
|
} /* while() */
|
|
|
|
if (sOrder != UCOL_NULLORDER)
|
|
{
|
|
/* (tOrder must be CollationElementIterator::NULLORDER, */
|
|
/* since this point is only reached when sOrder or tOrder is NULLORDER.) */
|
|
/* The source string has more elements, but the target string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(sOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the source string. */
|
|
/* This is a primary difference, so the source is greater */
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(sOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements mean the source string is greater */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_GREATER; /* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
}
|
|
}
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while (sOrder != UCOL_NULLORDER);
|
|
} else if (tOrder != UCOL_NULLORDER) {
|
|
/* The target string has more elements, but the source string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(tOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the target string. */
|
|
/* This is a primary difference, so the source is less */
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(tOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements in the target mean the source string is less */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_LESS; /* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
}
|
|
}
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
}
|
|
while ( tOrder != UCOL_NULLORDER);
|
|
}
|
|
} else { /* French */
|
|
|
|
/* there is a bad situation with French when there is a different number of secondaries... */
|
|
/* If that situation arises (when one primary is ignorable with nonignorable secondary and the other primary is not */
|
|
/* ignorable */
|
|
/* TODO: if the buffer is not big enough, we should use sortkeys */
|
|
UBool bufferFrenchSec = FALSE;
|
|
uint32_t sourceFrenchSec[UCOL_MAX_BUFFER], targetFrenchSec[UCOL_MAX_BUFFER];
|
|
uint32_t *sFSBEnd = sourceFrenchSec+UCOL_MAX_BUFFER;
|
|
uint32_t *tFSBEnd = targetFrenchSec+UCOL_MAX_BUFFER;
|
|
uint32_t *sFrenchStartPtr = NULL, *sFrenchEndPtr = NULL;
|
|
uint32_t *tFrenchStartPtr = NULL, *tFrenchEndPtr = NULL;
|
|
|
|
|
|
for(;;)
|
|
{
|
|
/* Get the next collation element in each of the strings, unless */
|
|
/* we've been requested to skip it. */
|
|
if (gets)
|
|
{
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(sOrder)) {
|
|
if (sFrenchStartPtr == NULL) {
|
|
sFrenchStartPtr = sFSBEnd;
|
|
}
|
|
sFrenchEndPtr = sFSBEnd-1;
|
|
} else if (sFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, sFrenchEndPtr, sFrenchStartPtr);
|
|
sFrenchStartPtr = NULL;
|
|
}
|
|
*(--sFSBEnd) = UCOL_SECONDARYORDER(sOrder);
|
|
if(sFSBEnd == sourceFrenchSec) { /* overflowing the buffer, bail out */
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
}
|
|
|
|
gets = TRUE;
|
|
|
|
if (gett)
|
|
{
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(tOrder)) {
|
|
if (tFrenchStartPtr == NULL) {
|
|
tFrenchStartPtr = tFSBEnd;
|
|
}
|
|
tFrenchEndPtr = tFSBEnd-1;
|
|
} else if (tFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, tFrenchEndPtr, tFrenchStartPtr);
|
|
tFrenchStartPtr = NULL;
|
|
}
|
|
*(--tFSBEnd) = UCOL_SECONDARYORDER(tOrder);
|
|
if(tFSBEnd == targetFrenchSec) { /* overflowing the buffer, bail out */
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
}
|
|
|
|
gett = TRUE;
|
|
|
|
/* If we've hit the end of one of the strings, jump out of the loop */
|
|
if ((sOrder == UCOL_NULLORDER)||
|
|
(tOrder == UCOL_NULLORDER)) {
|
|
break;
|
|
}
|
|
|
|
/* If there's no difference at this position, we can skip to the */
|
|
/* next one. */
|
|
if (sOrder == tOrder)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Compare primary differences first. */
|
|
pSOrder = UCOL_PRIMARYORDER(sOrder);
|
|
pTOrder = UCOL_PRIMARYORDER(tOrder);
|
|
if (pSOrder != pTOrder)
|
|
{
|
|
if (sOrder == UCOL_IGNORABLE)
|
|
{
|
|
/* The entire source element is ignorable. */
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
continue;
|
|
}
|
|
|
|
if (tOrder == UCOL_IGNORABLE)
|
|
{
|
|
gets = FALSE;
|
|
continue;
|
|
}
|
|
|
|
/* The source and target elements aren't ignorable, but it's still possible */
|
|
/* for the primary component of one of the elements to be ignorable.... */
|
|
if (pSOrder == UCOL_PRIMIGNORABLE || (shifted && pSOrder < variableMax) ) /* primary order in source is ignorable */
|
|
{
|
|
/* The source's primary is ignorable, but the target's isn't. We treat ignorables */
|
|
/* as a secondary difference, so remember that we found one. */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
}
|
|
else if (pTOrder == UCOL_PRIMIGNORABLE || (shifted && pSOrder < variableMax))
|
|
{
|
|
/* record differences - see the comment above. */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
/* Skip to the next target element, but don't fetch another source element. */
|
|
gets = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* Neither of the orders is ignorable, and we already know that the primary */
|
|
/* orders are different because of the (pSOrder != pTOrder) test above. */
|
|
/* Record the difference and stop the comparison. */
|
|
if (pSOrder < pTOrder)
|
|
{
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
}
|
|
else
|
|
{ /* else of if ( pSOrder != pTOrder ) */
|
|
/* primary order is the same, but complete order is different. So there */
|
|
/* are no base elements at this point, only ignorables (Since the strings are */
|
|
/* normalized) */
|
|
|
|
if (checkSecTer)
|
|
{
|
|
/* a secondary or tertiary difference may still matter */
|
|
uint32_t secSOrder = UCOL_SECONDARYORDER(sOrder);
|
|
uint32_t secTOrder = UCOL_SECONDARYORDER(tOrder);
|
|
|
|
if (secSOrder != secTOrder)
|
|
{
|
|
/* there is a secondary difference */
|
|
result = (secSOrder < secTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is SECONDARY) */
|
|
checkSecTer = isFrenchSec; /* We still want to track the French secondaries */
|
|
/* checkSecTer = FALSE; */
|
|
} else {
|
|
if (checkTertiary) {
|
|
/* a tertiary difference may still matter */
|
|
uint32_t terSOrder = UCOL_TERTIARYORDER(sOrder);
|
|
uint32_t terTOrder = UCOL_TERTIARYORDER(tOrder);
|
|
|
|
if (terSOrder != terTOrder) {
|
|
/* there is a tertiary difference */
|
|
result = (terSOrder < terTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is TERTIARY) */
|
|
checkTertiary = FALSE;
|
|
} else if(checkQuad && shifted) { /* try shifted & stuff */
|
|
uint32_t quadSOrder = (pSOrder < variableMax)?pSOrder:0xFFFF;
|
|
uint32_t quadTOrder = (pTOrder < variableMax)?pTOrder:0xFFFF;
|
|
if(quadSOrder != quadTOrder) {
|
|
result = (quadSOrder < quadTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
checkQuad = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} /* if (checkSecTer) */
|
|
|
|
} /* if ( pSOrder != pTOrder ) */
|
|
} /* while() */
|
|
|
|
if (sOrder != UCOL_NULLORDER)
|
|
{
|
|
/* (tOrder must be CollationElementIterator::NULLORDER, */
|
|
/* since this point is only reached when sOrder or tOrder is NULLORDER.) */
|
|
/* The source string has more elements, but the target string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(sOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the source string. */
|
|
/* This is a primary difference, so the source is greater */
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(sOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements mean the source string is greater */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
}
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(sOrder)) {
|
|
if (sFrenchStartPtr == NULL) {
|
|
sFrenchStartPtr = sFSBEnd;
|
|
}
|
|
sFrenchEndPtr = sFSBEnd-1;
|
|
} else if (sFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, sFrenchEndPtr, sFrenchStartPtr);
|
|
sFrenchStartPtr = NULL;
|
|
}
|
|
*(--sFSBEnd) = UCOL_SECONDARYORDER(sOrder);
|
|
if(sFSBEnd == sourceFrenchSec) { /* overflowing the buffer, bail out */
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while (sOrder != UCOL_NULLORDER);
|
|
}
|
|
else if (tOrder != UCOL_NULLORDER)
|
|
{
|
|
/* The target string has more elements, but the source string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(tOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the target string. */
|
|
/* This is a primary difference, so the source is less */
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(tOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements in the target mean the source string is less */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
}
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(tOrder)) {
|
|
if (tFrenchStartPtr == NULL) {
|
|
tFrenchStartPtr = tFSBEnd;
|
|
}
|
|
tFrenchEndPtr = tFSBEnd-1;
|
|
} else if (tFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, tFrenchEndPtr, tFrenchStartPtr);
|
|
tFrenchStartPtr = NULL;
|
|
}
|
|
*(--tFSBEnd) = UCOL_SECONDARYORDER(tOrder);
|
|
if(tFSBEnd == targetFrenchSec) { /* overflowing the buffer, bail out */
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while ( tOrder != UCOL_NULLORDER);
|
|
}
|
|
|
|
if(bufferFrenchSec) {
|
|
while(sFSBEnd < sourceFrenchSec+UCOL_MAX_BUFFER && tFSBEnd < targetFrenchSec+UCOL_MAX_BUFFER) {
|
|
/*WEIVTODO: do the continuation bit here - do the last reversal*/
|
|
if(*sFSBEnd == *tFSBEnd) {
|
|
sFSBEnd++;
|
|
tFSBEnd++;
|
|
} else if(*sFSBEnd < *tFSBEnd) {
|
|
result = UCOL_LESS;
|
|
break;
|
|
} else {
|
|
result = UCOL_GREATER;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* For IDENTICAL comparisons, we use a bitwise character comparison */
|
|
/* as a tiebreaker if all else is equal */
|
|
/* NOTE: The java code compares result with 0, and */
|
|
/* puts the result of the string comparison directly into result */
|
|
if (result == UCOL_EQUAL && strength == UCOL_IDENTICAL)
|
|
{
|
|
UnicodeString sourceDecomp, targetDecomp;
|
|
|
|
int8_t comparison;
|
|
|
|
Normalizer::normalize(UnicodeString(source, sourceLength), ((RuleBasedCollator *)coll)->getDecomposition(),
|
|
0, sourceDecomp, status);
|
|
|
|
Normalizer::normalize(UnicodeString(target, targetLength), ((RuleBasedCollator *)coll)->getDecomposition(),
|
|
0, targetDecomp, status);
|
|
|
|
comparison = sourceDecomp.compare(targetDecomp);
|
|
|
|
if (comparison < 0)
|
|
{
|
|
result = UCOL_LESS;
|
|
}
|
|
else if (comparison == 0)
|
|
{
|
|
result = UCOL_EQUAL;
|
|
}
|
|
else
|
|
{
|
|
result = UCOL_GREATER;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
void init_incrementalContext(UCharForwardIterator *source, void *sourceContext, incrementalContext *s) {
|
|
s->len = s->stringP = s->stackString ;
|
|
s->capacity = s->stackString+UCOL_MAX_BUFFER;
|
|
s->CEpos = s->toReturn = s->CEs;
|
|
s->source = source;
|
|
s->sourceContext = sourceContext;
|
|
s->currentChar = 0xFFFF;
|
|
s->lastChar = 0xFFFF;
|
|
s->panic = FALSE;
|
|
}
|
|
|
|
/* This is the new function */
|
|
/* This is the incremental function */
|
|
U_CAPI UCollationResult ucol_strcollinc(const UCollator *coll,
|
|
UCharForwardIterator *source, void *sourceContext,
|
|
UCharForwardIterator *target, void *targetContext)
|
|
{
|
|
|
|
UCollationResult result = UCOL_EQUAL;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
incrementalContext sColl, tColl;
|
|
|
|
init_incrementalContext(source, sourceContext, &sColl);
|
|
init_incrementalContext(target, targetContext, &tColl);
|
|
|
|
/* WEIVTODO: this should not be here :) */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
|
|
if(coll->normalizationMode != UCOL_OFF) { /* run away screaming!!!! */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
|
|
if (U_FAILURE(status))
|
|
{
|
|
return UCOL_EQUAL;
|
|
}
|
|
|
|
UColAttributeValue strength = coll->strength;
|
|
uint32_t sOrder=UCOL_NULLORDER, tOrder=UCOL_NULLORDER;
|
|
uint32_t pSOrder, pTOrder;
|
|
UBool gets = TRUE, gett = TRUE;
|
|
UBool initialCheckSecTer = (strength >= UCOL_SECONDARY);
|
|
|
|
uint8_t variableMax = coll->variableMax;
|
|
UBool checkSecTer = initialCheckSecTer;
|
|
UBool checkTertiary = (strength >= UCOL_TERTIARY);
|
|
UBool checkQuad = (strength >= UCOL_QUATERNARY);
|
|
UBool checkIdent = (strength == UCOL_IDENTICAL);
|
|
UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && checkSecTer;
|
|
UBool upperFirst = (coll->caseFirst == UCOL_UPPER_FIRST) && checkTertiary;
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && checkQuad;
|
|
|
|
if(!isFrenchSec) {
|
|
for(;;)
|
|
{
|
|
/* Get the next collation element in each of the strings, unless */
|
|
/* we've been requested to skip it. */
|
|
if (gets)
|
|
{
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
}
|
|
gets = TRUE;
|
|
|
|
if (gett)
|
|
{
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
}
|
|
gett = TRUE;
|
|
|
|
/* If we've hit the end of one of the strings, jump out of the loop */
|
|
if ((sOrder == UCOL_NULLORDER)||
|
|
(tOrder == UCOL_NULLORDER)) {
|
|
if(sColl.panic == TRUE || tColl.panic == TRUE) {
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* If there's no difference at this position, we can skip to the */
|
|
/* next one. */
|
|
if (sOrder == tOrder)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Compare primary differences first. */
|
|
pSOrder = UCOL_PRIMARYORDER(sOrder);
|
|
pTOrder = UCOL_PRIMARYORDER(tOrder);
|
|
if (pSOrder != pTOrder)
|
|
{
|
|
if (sOrder == UCOL_IGNORABLE)
|
|
{
|
|
/* The entire source element is ignorable. */
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
continue;
|
|
}
|
|
|
|
if (tOrder == UCOL_IGNORABLE)
|
|
{
|
|
gets = FALSE;
|
|
continue;
|
|
}
|
|
|
|
/* The source and target elements aren't ignorable, but it's still possible */
|
|
/* for the primary component of one of the elements to be ignorable.... */
|
|
if (pSOrder == UCOL_PRIMIGNORABLE || (shifted && pSOrder < variableMax) ) /* primary order in source is ignorable */
|
|
{
|
|
/* The source's primary is ignorable, but the target's isn't. We treat ignorables */
|
|
/* as a secondary difference, so remember that we found one. */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_GREATER; /* (strength is SECONDARY) - still need to check for tertiary or quad */
|
|
checkSecTer = FALSE;
|
|
}
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
}
|
|
else if (pTOrder == UCOL_PRIMIGNORABLE || (shifted && pSOrder < variableMax))
|
|
{
|
|
/* record differences - see the comment above. */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_LESS; /* (strength is SECONDARY) - still need to check for tertiary or quad */
|
|
checkSecTer = FALSE;
|
|
}
|
|
/* Skip to the next target element, but don't fetch another source element. */
|
|
gets = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* Neither of the orders is ignorable, and we already know that the primary */
|
|
/* orders are different because of the (pSOrder != pTOrder) test above. */
|
|
/* Record the difference and stop the comparison. */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
if (pSOrder < pTOrder)
|
|
{
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
} else { /* else of if ( pSOrder != pTOrder ) */
|
|
/* primary order is the same, but complete order is different. So there */
|
|
/* are no base elements at this point, only ignorables (Since the strings are */
|
|
/* normalized) */
|
|
|
|
if (checkSecTer) {
|
|
/* a secondary or tertiary difference may still matter */
|
|
uint32_t secSOrder = UCOL_SECONDARYORDER(sOrder);
|
|
uint32_t secTOrder = UCOL_SECONDARYORDER(tOrder);
|
|
|
|
if (secSOrder != secTOrder) {
|
|
/* there is a secondary difference */
|
|
result = (secSOrder < secTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
} else {
|
|
if (checkTertiary) {
|
|
/* a tertiary difference may still matter */
|
|
uint32_t terSOrder = UCOL_TERTIARYORDER(sOrder);
|
|
uint32_t terTOrder = UCOL_TERTIARYORDER(tOrder);
|
|
|
|
if (terSOrder != terTOrder) {
|
|
/* there is a tertiary difference */
|
|
result = (terSOrder < terTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is TERTIARY) */
|
|
checkTertiary = FALSE;
|
|
} else if(checkQuad && shifted) { /* try shifted & stuff */
|
|
uint32_t quadSOrder = (pSOrder < variableMax)?pSOrder:0xFFFF;
|
|
uint32_t quadTOrder = (pTOrder < variableMax)?pTOrder:0xFFFF;
|
|
if(quadSOrder != quadTOrder) {
|
|
result = (quadSOrder < quadTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
checkQuad = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} /* if (checkSecTer) */
|
|
|
|
} /* if ( pSOrder != pTOrder ) */
|
|
} /* while() */
|
|
|
|
if (sOrder != UCOL_NULLORDER)
|
|
{
|
|
/* (tOrder must be CollationElementIterator::NULLORDER, */
|
|
/* since this point is only reached when sOrder or tOrder is NULLORDER.) */
|
|
/* The source string has more elements, but the target string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(sOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the source string. */
|
|
/* This is a primary difference, so the source is greater */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(sOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements mean the source string is greater */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_GREATER; /* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
}
|
|
}
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while (sOrder != UCOL_NULLORDER);
|
|
} else if (tOrder != UCOL_NULLORDER) {
|
|
/* The target string has more elements, but the source string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(tOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the target string. */
|
|
/* This is a primary difference, so the source is less */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(tOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements in the target mean the source string is less */
|
|
if (checkSecTer)
|
|
{
|
|
result = UCOL_LESS; /* (strength is SECONDARY) */
|
|
checkSecTer = FALSE;
|
|
}
|
|
}
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
}
|
|
while ( tOrder != UCOL_NULLORDER);
|
|
/* while ((tOrder = ucol_getIncrementalCE(coll, &tColl, &status)) != CollationElementIterator::NULLORDER); */
|
|
}
|
|
} else { /* French */
|
|
|
|
/* there is a bad situation with French when there is a different number of secondaries... */
|
|
/* If that situation arises (when one primary is ignorable with nonignorable secondary and the other primary is not */
|
|
/* ignorable */
|
|
/* TODO: if the buffer is not big enough, we should use sortkeys */
|
|
UBool bufferFrenchSec = FALSE;
|
|
uint32_t sourceFrenchSec[UCOL_MAX_BUFFER], targetFrenchSec[UCOL_MAX_BUFFER];
|
|
uint32_t *sFSBEnd = sourceFrenchSec+UCOL_MAX_BUFFER;
|
|
uint32_t *tFSBEnd = targetFrenchSec+UCOL_MAX_BUFFER;
|
|
uint32_t *sFrenchStartPtr = NULL, *sFrenchEndPtr = NULL;
|
|
uint32_t *tFrenchStartPtr = NULL, *tFrenchEndPtr = NULL;
|
|
|
|
for(;;)
|
|
{
|
|
/* Get the next collation element in each of the strings, unless */
|
|
/* we've been requested to skip it. */
|
|
if (gets)
|
|
{
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(sOrder)) {
|
|
if (sFrenchStartPtr == NULL) {
|
|
sFrenchStartPtr = sFSBEnd;
|
|
}
|
|
sFrenchEndPtr = sFSBEnd-1;
|
|
} else if (sFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, sFrenchEndPtr, sFrenchStartPtr);
|
|
sFrenchStartPtr = NULL;
|
|
}
|
|
*(--sFSBEnd) = UCOL_SECONDARYORDER(sOrder);
|
|
if(sFSBEnd == sourceFrenchSec) { /* overflowing the buffer, bail out */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
}
|
|
|
|
gets = TRUE;
|
|
|
|
if (gett)
|
|
{
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(tOrder)) {
|
|
if (tFrenchStartPtr == NULL) {
|
|
tFrenchStartPtr = tFSBEnd;
|
|
}
|
|
tFrenchEndPtr = tFSBEnd-1;
|
|
} else if (tFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, tFrenchEndPtr, tFrenchStartPtr);
|
|
tFrenchStartPtr = NULL;
|
|
}
|
|
*(--tFSBEnd) = UCOL_SECONDARYORDER(tOrder);
|
|
if(tFSBEnd == targetFrenchSec) { /* overflowing the buffer, bail out */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
}
|
|
|
|
gett = TRUE;
|
|
|
|
/* If we've hit the end of one of the strings, jump out of the loop */
|
|
if ((sOrder == UCOL_NULLORDER)||
|
|
(tOrder == UCOL_NULLORDER)) {
|
|
break;
|
|
}
|
|
|
|
/* If there's no difference at this position, we can skip to the */
|
|
/* next one. */
|
|
if (sOrder == tOrder)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Compare primary differences first. */
|
|
pSOrder = UCOL_PRIMARYORDER(sOrder);
|
|
pTOrder = UCOL_PRIMARYORDER(tOrder);
|
|
if (pSOrder != pTOrder)
|
|
{
|
|
if (sOrder == UCOL_IGNORABLE)
|
|
{
|
|
/* The entire source element is ignorable. */
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
continue;
|
|
}
|
|
|
|
if (tOrder == UCOL_IGNORABLE)
|
|
{
|
|
gets = FALSE;
|
|
continue;
|
|
}
|
|
|
|
/* The source and target elements aren't ignorable, but it's still possible */
|
|
/* for the primary component of one of the elements to be ignorable.... */
|
|
if (pSOrder == UCOL_PRIMIGNORABLE) /* primary order in source is ignorable */
|
|
{
|
|
/* The source's primary is ignorable, but the target's isn't. We treat ignorables */
|
|
/* as a secondary difference, so remember that we found one. */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
/* Skip to the next source element, but don't fetch another target element. */
|
|
gett = FALSE;
|
|
}
|
|
else if (pTOrder == UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* record differences - see the comment above. */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
/* Skip to the next target element, but don't fetch another source element. */
|
|
gets = FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* Neither of the orders is ignorable, and we already know that the primary */
|
|
/* orders are different because of the (pSOrder != pTOrder) test above. */
|
|
/* Record the difference and stop the comparison. */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
if (pSOrder < pTOrder)
|
|
{
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
}
|
|
else
|
|
{ /* else of if ( pSOrder != pTOrder ) */
|
|
/* primary order is the same, but complete order is different. So there */
|
|
/* are no base elements at this point, only ignorables (Since the strings are */
|
|
/* normalized) */
|
|
|
|
if (checkSecTer)
|
|
{
|
|
/* a secondary or tertiary difference may still matter */
|
|
uint32_t secSOrder = UCOL_SECONDARYORDER(sOrder);
|
|
uint32_t secTOrder = UCOL_SECONDARYORDER(tOrder);
|
|
|
|
if (secSOrder != secTOrder)
|
|
{
|
|
/* there is a secondary difference */
|
|
result = (secSOrder < secTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is SECONDARY) */
|
|
checkSecTer = isFrenchSec; /* We still want to track the French secondaries */
|
|
/* checkSecTer = FALSE; */
|
|
}
|
|
else
|
|
{
|
|
if (checkTertiary)
|
|
{
|
|
/* a tertiary difference may still matter */
|
|
uint32_t terSOrder = UCOL_TERTIARYORDER(sOrder);
|
|
uint32_t terTOrder = UCOL_TERTIARYORDER(tOrder);
|
|
|
|
if (terSOrder != terTOrder)
|
|
{
|
|
/* there is a tertiary difference */
|
|
result = (terSOrder < terTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
/* (strength is TERTIARY) */
|
|
checkTertiary = FALSE;
|
|
} else if(checkQuad && shifted) { /* try shifted & stuff */
|
|
uint32_t quadSOrder = (pSOrder < variableMax)?pSOrder:0xFFFF;
|
|
uint32_t quadTOrder = (pTOrder < variableMax)?pTOrder:0xFFFF;
|
|
if(quadSOrder != quadTOrder) {
|
|
result = (quadSOrder < quadTOrder) ? UCOL_LESS : UCOL_GREATER;
|
|
checkQuad = FALSE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} /* if (checkSecTer) */
|
|
|
|
} /* if ( pSOrder != pTOrder ) */
|
|
} /* while() */
|
|
|
|
if (sOrder != UCOL_NULLORDER)
|
|
{
|
|
/* (tOrder must be CollationElementIterator::NULLORDER, */
|
|
/* since this point is only reached when sOrder or tOrder is NULLORDER.) */
|
|
/* The source string has more elements, but the target string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(sOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the source string. */
|
|
/* This is a primary difference, so the source is greater */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
return UCOL_GREATER; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(sOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements mean the source string is greater */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
}
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(sOrder)) {
|
|
if (sFrenchStartPtr == NULL) {
|
|
sFrenchStartPtr = sFSBEnd;
|
|
}
|
|
sFrenchEndPtr = sFSBEnd-1;
|
|
} else if (sFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, sFrenchEndPtr, sFrenchStartPtr);
|
|
sFrenchStartPtr = NULL;
|
|
}
|
|
*(--sFSBEnd) = UCOL_SECONDARYORDER(sOrder);
|
|
if(sFSBEnd == sourceFrenchSec) { /* overflowing the buffer, bail out */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while (sOrder != UCOL_NULLORDER);
|
|
}
|
|
else if (tOrder != UCOL_NULLORDER)
|
|
{
|
|
/* The target string has more elements, but the source string hasn't. */
|
|
do
|
|
{
|
|
if (UCOL_PRIMARYORDER(tOrder) != UCOL_PRIMIGNORABLE)
|
|
{
|
|
/* We found an additional non-ignorable base character in the target string. */
|
|
/* This is a primary difference, so the source is less */
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
return UCOL_LESS; /* (strength is PRIMARY) */
|
|
}
|
|
|
|
if (UCOL_SECONDARYORDER(tOrder) != UCOL_SECIGNORABLE)
|
|
{
|
|
/* Additional secondary elements in the target mean the source string is less */
|
|
if (checkSecTer)
|
|
{
|
|
bufferFrenchSec = TRUE;
|
|
}
|
|
}
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
/*WEIVTODO: do the continuation bit here */
|
|
if(isContinuation(tOrder)) {
|
|
if (tFrenchStartPtr == NULL) {
|
|
tFrenchStartPtr = tFSBEnd;
|
|
}
|
|
tFrenchEndPtr = tFSBEnd-1;
|
|
} else if (tFrenchStartPtr != NULL) {
|
|
/* reverse secondaries from frenchStartPtr up to frenchEndPtr */
|
|
uprv_ucol_reverse_buffer(uint32_t, tFrenchEndPtr, tFrenchStartPtr);
|
|
tFrenchStartPtr = NULL;
|
|
}
|
|
*(--tFSBEnd) = UCOL_SECONDARYORDER(tOrder);
|
|
if(tFSBEnd == targetFrenchSec) { /* overflowing the buffer, bail out */
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
/*WEIVTODO: What about tertiaries and quads??? recheck */
|
|
} while ( tOrder != UCOL_NULLORDER);
|
|
}
|
|
|
|
if(bufferFrenchSec) {
|
|
while(sFSBEnd < sourceFrenchSec+UCOL_MAX_BUFFER && tFSBEnd < targetFrenchSec+UCOL_MAX_BUFFER) {
|
|
if(*sFSBEnd == *tFSBEnd) {
|
|
sFSBEnd++;
|
|
tFSBEnd++;
|
|
} else if(*sFSBEnd < *tFSBEnd) {
|
|
result = UCOL_LESS;
|
|
break;
|
|
} else {
|
|
result = UCOL_GREATER;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* For IDENTICAL comparisons, we use a bitwise character comparison */
|
|
/* as a tiebreaker if all else is equal */
|
|
/* NOTE: The java code compares result with 0, and */
|
|
/* puts the result of the string comparison directly into result */
|
|
if (result == UCOL_EQUAL && strength == UCOL_IDENTICAL)
|
|
{
|
|
UnicodeString sourceDecomp, targetDecomp;
|
|
|
|
int8_t comparison;
|
|
|
|
Normalizer::normalize(UnicodeString(sColl.stringP, sColl.len-sColl.stringP-1), ((RuleBasedCollator *)coll)->getDecomposition(),
|
|
0, sourceDecomp, status);
|
|
|
|
Normalizer::normalize(UnicodeString(tColl.stringP, tColl.len-tColl.stringP-1), ((RuleBasedCollator *)coll)->getDecomposition(),
|
|
0, targetDecomp, status);
|
|
|
|
comparison = sourceDecomp.compare(targetDecomp);
|
|
|
|
if (comparison < 0)
|
|
{
|
|
result = UCOL_LESS;
|
|
}
|
|
else if (comparison == 0)
|
|
{
|
|
result = UCOL_EQUAL;
|
|
}
|
|
else
|
|
{
|
|
result = UCOL_GREATER;
|
|
}
|
|
}
|
|
|
|
incctx_cleanUpContext(&sColl);
|
|
incctx_cleanUpContext(&tColl);
|
|
return result;
|
|
}
|
|
|
|
/* convenience function for comparing strings */
|
|
U_CAPI UBool
|
|
ucol_greater( const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
const UChar *target,
|
|
int32_t targetLength)
|
|
{
|
|
return (ucol_strcoll(coll, source, sourceLength, target, targetLength)
|
|
== UCOL_GREATER);
|
|
}
|
|
|
|
/* convenience function for comparing strings */
|
|
U_CAPI UBool
|
|
ucol_greaterOrEqual( const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
const UChar *target,
|
|
int32_t targetLength)
|
|
{
|
|
return (ucol_strcoll(coll, source, sourceLength, target, targetLength)
|
|
!= UCOL_LESS);
|
|
}
|
|
|
|
/* convenience function for comparing strings */
|
|
U_CAPI UBool
|
|
ucol_equal( const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
const UChar *target,
|
|
int32_t targetLength)
|
|
{
|
|
return (ucol_strcoll(coll, source, sourceLength, target, targetLength)
|
|
== UCOL_EQUAL);
|
|
}
|
|
|
|
|
|
int32_t ucol_getIncrementalCE(const UCollator *coll, incrementalContext *ctx, UErrorCode *status) {
|
|
uint32_t order;
|
|
|
|
if (U_FAILURE(*status) /*|| (ctx->CEpos <= ctx->toReturn)*/) {
|
|
return UCOL_NULLORDER;
|
|
}
|
|
|
|
if (ctx->CEpos > ctx->toReturn) {
|
|
return(*(ctx->toReturn++));
|
|
}
|
|
|
|
ctx->CEpos = ctx->toReturn = ctx->CEs;
|
|
|
|
/* Hmmm, I forgot what this was for :) */
|
|
/* but it looks like ctx->currentChar is used around */
|
|
if(ctx->lastChar == 0xFFFF) {
|
|
ctx->currentChar = ctx->source(ctx->sourceContext);
|
|
incctx_appendChar(ctx, ctx->currentChar);
|
|
if(ctx->currentChar == 0xFFFF) {
|
|
return UCOL_NULLORDER;
|
|
}
|
|
} else {
|
|
ctx->currentChar = ctx->lastChar;
|
|
ctx->lastChar = 0xFFFF;
|
|
}
|
|
|
|
UChar ch = ctx->currentChar;
|
|
if(ch < 0xFF) { /* if it's Latin One, we'll try to fast track it */
|
|
order = coll->latinOneMapping[ch]; /* by looking in up in an array */
|
|
} else { /* otherwise, */
|
|
order = ucmp32_get(coll->mapping, ch); /* we'll go for slightly slower trie */
|
|
}
|
|
|
|
if(order > UCOL_NOT_FOUND) { /* do special processing */
|
|
*(ctx->CEpos) = order;
|
|
order = ucol_getIncrementalSpecialCE(coll, ctx, status);
|
|
} else if(order == UCOL_NOT_FOUND) { /* do the UCA processing */
|
|
order = ucol_getIncrementalUCA(ch, ctx, status);
|
|
}
|
|
return(order);
|
|
}
|
|
|
|
/* This function tries to get a CE from UCA, which should be always around */
|
|
/* UChar is passed in in order to speed things up */
|
|
/* here is also the generation of implicit CEs */
|
|
uint32_t ucol_getIncrementalUCA(UChar ch, incrementalContext *collationSource, UErrorCode *status) {
|
|
uint32_t order;
|
|
if(ch < 0xFF) { /* so we'll try to find it in the UCA */
|
|
order = UCA->latinOneMapping[ch];
|
|
} else {
|
|
order = ucmp32_get(UCA->mapping, ch);
|
|
}
|
|
if(order >= UCOL_NOT_FOUND) { /* UCA also gives us a special CE */
|
|
order = ucol_getIncrementalSpecialCE(UCA, collationSource, status);
|
|
}
|
|
if(order == UCOL_NOT_FOUND) { /* This is where we have to resort to algorithmical generation */
|
|
/* We have to check if ch is possibly a first surrogate - then we need to take the next code unit */
|
|
/* and make a bigger CE */
|
|
#if 0
|
|
UChar nextChar;
|
|
if(UTF_IS_FIRST_SURROGATE(ch) && (collationSource->pos<collationSource->len) &&
|
|
UTF_IS_SECOND_SURROGATE((nextChar=*(collationSource->pos+1)))) {
|
|
uint32_t cp = (((ch)<<10UL)+(nextChar)-((0xd800<<10UL)+0xdc00));
|
|
collationSource->pos++;
|
|
/* This is a code point minus 0x10000, that's what algorithm requires */
|
|
order = 0xE0800303 | (cp & 0xF0000) << 8 | (cp & 0xFE00) << 7;
|
|
*(collationSource->CEpos++) = 0xF0040000 | (cp & 0x1FF) << 19;
|
|
} else {
|
|
#endif
|
|
/* otherwise */
|
|
/* Make up an artifical CE from code point as per UCA */
|
|
order = 0xD08004F1;
|
|
/*order = 0xD01004F1;*/
|
|
order |= ((uint32_t)ch & 0xF000)<<12;
|
|
order |= ((uint32_t)ch & 0x0FFF)<<11;
|
|
// }
|
|
}
|
|
return order; /* return the CE */
|
|
}
|
|
|
|
|
|
int32_t ucol_getIncrementalSpecialCE(const UCollator *coll, incrementalContext *ctx, UErrorCode *status) {
|
|
return 0;
|
|
|
|
#if 0
|
|
int32_t i = 0; /* general counter */
|
|
uint32_t CE = *source->CEpos;
|
|
while (TRUE) {
|
|
const uint32_t *CEOffset = NULL;
|
|
const UChar *UCharOffset = NULL;
|
|
UChar schar, tchar;
|
|
uint32_t size = 0;
|
|
switch(getCETag(CE)) {
|
|
case NOT_FOUND_TAG:
|
|
/* This one is not found, and we'll let somebody else bother about it... no more games */
|
|
return CE;
|
|
break;
|
|
case SURROGATE_TAG:
|
|
/* pending surrogate discussion with Markus and Mark */
|
|
return UCOL_NOT_FOUND;
|
|
break;
|
|
case THAI_TAG:
|
|
/* Thai/Lao reordering */
|
|
if(source->isThai == TRUE) { /* if we encountered Thai prevowel & the string is not yet touched */
|
|
source->isThai = FALSE; /* We will touch the string */
|
|
if((source->len - source->pos) > UCOL_WRITABLE_BUFFER_SIZE) {
|
|
/* Problematic part - if the stack buffer is too small, we need to allocate */
|
|
/* However, somebody needs to keep track of that allocated space */
|
|
/* And context structure is not good for that */
|
|
/* allocate a new buffer - This is unfortunate and should be way smarter */
|
|
/*source->writableBuffer = (UChar *)ucol_getABuffer(coll, (source->len - source->pos)*sizeof(UChar));*/
|
|
}
|
|
UChar *sourceCopy = source->pos;
|
|
UChar *targetCopy = source->writableBuffer;
|
|
while(sourceCopy < source->len) {
|
|
if(UCOL_ISTHAIPREVOWEL(*(sourceCopy)) && /* This is the combination that needs to be swapped */
|
|
UCOL_ISTHAIBASECONSONANT(*(sourceCopy+1))) {
|
|
*(targetCopy) = *(sourceCopy+1);
|
|
*(targetCopy+1) = *(sourceCopy);
|
|
targetCopy+=2;
|
|
sourceCopy+=2;
|
|
} else {
|
|
*(targetCopy++) = *(sourceCopy++);
|
|
}
|
|
}
|
|
source->pos = source->writableBuffer;
|
|
source->len = targetCopy;
|
|
source->CEpos = source->toReturn = source->CEs;
|
|
CE = UCOL_IGNORABLE;
|
|
} else { /* we have already played with the string, so treat Thai as a length one expansion */
|
|
CEOffset = coll->expansion+getExpansionOffset(CE); /* find the offset to expansion table */
|
|
CE = *CEOffset++;
|
|
}
|
|
break;
|
|
case CONTRACTION_TAG:
|
|
/* This should handle contractions */
|
|
for(;;) {
|
|
/* First we position ourselves at the begining of contraction sequence */
|
|
const UChar *ContractionStart = UCharOffset = (UChar *)coll->image+getContractOffset(CE);
|
|
|
|
/* we need to convey the notion of having a backward search - most probably through the context object */
|
|
/* if (backwardsSearch) offset += contractionUChars[(int16_t)offset]; else UCharOffset++; */
|
|
UCharOffset++; /* skip the backward offset, see above */
|
|
if (source->pos>=source->len) { /* this is the end of string */
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex)); /* So we'll pick whatever we have at the point... */
|
|
source->pos--; /* I think, since we'll advance in the getCE */
|
|
break;
|
|
}
|
|
schar = *(++source->pos);
|
|
while(schar > (tchar = *UCharOffset)) { /* since the contraction codepoints should be ordered, we skip all that are smaller */
|
|
UCharOffset++;
|
|
}
|
|
if(schar != tchar) { /* we didn't find the correct codepoint. We can use either the first or the last CE */
|
|
if(tchar != 0xFFFF) {
|
|
UCharOffset = ContractionStart; /* We're not at the end, bailed out in the middle. Better use starting CE */
|
|
}
|
|
source->pos--; /* Spit out the last char of the string, wasn't tasty enough */
|
|
}
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
|
|
if(!isContraction(CE)) {
|
|
/* Maybe not */
|
|
/*source->pos--;*/ /* I think, since we'll advance in the getCE */
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case EXPANSION_TAG:
|
|
/* This should handle expansion. */
|
|
/* NOTE: we can encounter both continuations and expansions in an expansion! */
|
|
/* I have to decide where continuations are going to be dealt with */
|
|
CEOffset = (uint32_t *)coll->image+getExpansionOffset(CE); /* find the offset to expansion table */
|
|
size = getExpansionCount(CE);
|
|
CE = *CEOffset++;
|
|
if(size != 0) { /* if there are less than 16 elements in expansion, we don't terminate */
|
|
for(i = 1; i<size; i++) {
|
|
*(source->CEpos++) = *CEOffset++;
|
|
}
|
|
} else { /* else, we do */
|
|
while(*CEOffset != 0) {
|
|
*(source->CEpos++) = *CEOffset++;
|
|
}
|
|
}
|
|
/*source->toReturn++;*/
|
|
return CE;
|
|
break;
|
|
case CHARSET_TAG:
|
|
/* probably after 1.8 */
|
|
return UCOL_NOT_FOUND;
|
|
break;
|
|
default:
|
|
*status = U_INTERNAL_PROGRAM_ERROR;
|
|
CE=0;
|
|
break;
|
|
}
|
|
if (CE <= UCOL_NOT_FOUND) break;
|
|
}
|
|
return CE;
|
|
#endif
|
|
|
|
#if 0
|
|
if (order == UCOL_UNMAPPED) {
|
|
/* Returned an "unmapped" flag and save the character so it can be */
|
|
/* returned next time this method is called. */
|
|
if (ctx->currentChar == 0x0000) return ctx->currentChar; /* \u0000 is not valid in C++'s UnicodeString */
|
|
/* *(ctx->CEpos++) = UCOL_UNMAPPEDCHARVALUE; */
|
|
order = UCOL_UNMAPPEDCHARVALUE;
|
|
*(ctx->CEpos++) = ctx->currentChar<<16;
|
|
} else {
|
|
/* Contraction sequence start... */
|
|
if (order >= UCOL_CONTRACTCHARINDEX) {
|
|
UChar key[1024];
|
|
uint32_t posKey = 0;
|
|
|
|
VectorOfPToContractElement* list = ((RuleBasedCollator *)coll)->data->contractTable->at(order-UCOL_CONTRACTCHARINDEX);
|
|
/* The upper line obtained a list of contracting sequences. */
|
|
if (list != NULL) {
|
|
EntryPair *pair = (EntryPair *)list->at(0); /* Taking out the first one. */
|
|
order = pair->value; /* This got us mapping for just the first element - the one that signalled a contraction. */
|
|
|
|
key[posKey++] = ctx->currentChar;
|
|
/* This tries to find the longes common match for the data in contraction table... */
|
|
/* and needs to be rewritten, especially the test down there! */
|
|
int32_t i;
|
|
int32_t listSize = list->size();
|
|
UBool foundSmaller = TRUE;
|
|
UBool endOfString = FALSE;
|
|
/* *(ctx->len++) = ctx->lastChar; */
|
|
incctx_appendChar(ctx, ctx->lastChar);
|
|
while(!endOfString && foundSmaller) {
|
|
endOfString = ((ctx->lastChar = ctx->source(ctx->sourceContext)) == 0xFFFF);
|
|
key[posKey++] = ctx->lastChar;
|
|
|
|
foundSmaller = FALSE;
|
|
i = 0;
|
|
while(i<listSize && !foundSmaller) {
|
|
pair = list->at(i);
|
|
if ((pair != NULL) && (pair->fwd == TRUE /*fwd*/) && (pair->equalTo(key, posKey))) {
|
|
order = pair->value;
|
|
/* *(ctx->len++) = ctx->lastChar; */
|
|
incctx_appendChar(ctx, ctx->lastChar);
|
|
foundSmaller = TRUE;
|
|
}
|
|
i++;
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* Expansion sequence start... */
|
|
if (order >= UCOL_EXPANDCHARINDEX) {
|
|
VectorOfInt *v = ((RuleBasedCollator *)coll)->data->expandTable->at(order-UCOL_EXPANDCHARINDEX);
|
|
if(v != NULL) {
|
|
int32_t expandindex=0;
|
|
int32_t vSize = v->size();
|
|
order = v->at(expandindex++); /* first character.... */
|
|
while(expandindex < vSize) {
|
|
*(ctx->CEpos++) = v->at(expandindex++);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Thai/Lao reordering */
|
|
/* This is gonna be way too goofy - so we're gonna bail out and let others do the work... */
|
|
if (UCOL_ISTHAIPREVOWEL(ctx->currentChar)) {
|
|
ctx->panic = TRUE;
|
|
return UCOL_NULLORDER;
|
|
}
|
|
}
|
|
return order;
|
|
#endif
|
|
}
|
|
|
|
void incctx_cleanUpContext(incrementalContext *ctx) {
|
|
if(ctx->stringP != ctx->stackString) {
|
|
uprv_free(ctx->stringP);
|
|
}
|
|
}
|
|
|
|
UChar incctx_appendChar(incrementalContext *ctx, UChar c) {
|
|
if(ctx->len == ctx->capacity) { /* bother, said Pooh, we need to reallocate */
|
|
UChar *newStuff;
|
|
if(ctx->stringP == ctx->stackString) { /* we haven't allocated before, need to allocate */
|
|
newStuff = (UChar *)uprv_malloc(2*(ctx->capacity - ctx->stringP)*sizeof(UChar));
|
|
if(newStuff == NULL) {
|
|
/*freak out*/
|
|
}
|
|
uprv_memcpy(newStuff, ctx->stringP, (ctx->capacity - ctx->stringP)*sizeof(UChar));
|
|
} else { /* we have already allocated, need to reallocate */
|
|
newStuff = (UChar *)uprv_realloc(ctx->stringP, 2*(ctx->capacity - ctx->stringP)*sizeof(UChar));
|
|
if(newStuff == NULL) {
|
|
/*freak out*/
|
|
}
|
|
}
|
|
ctx->len=newStuff+(ctx->len - ctx->stringP);
|
|
ctx->capacity = newStuff+2*(ctx->capacity - ctx->stringP);
|
|
ctx->stringP = newStuff;
|
|
}
|
|
*(ctx->len++) = c;
|
|
return c;
|
|
}
|
|
|
|
|
|
|
|
UCollationResult alternateIncrementalProcessing(const UCollator *coll, incrementalContext *srcCtx, incrementalContext *trgCtx) {
|
|
if(srcCtx->stringP == srcCtx->len || *(srcCtx->len-1) != 0xFFFF) {
|
|
while(incctx_appendChar(srcCtx, srcCtx->source(srcCtx->sourceContext)) != 0xFFFF);
|
|
}
|
|
if(trgCtx->stringP == trgCtx->len || *(trgCtx->len-1) != 0xFFFF) {
|
|
while(incctx_appendChar(trgCtx, trgCtx->source(trgCtx->sourceContext)) != 0xFFFF);
|
|
}
|
|
UCollationResult result = ucol_strcoll(coll, srcCtx->stringP, srcCtx->len-srcCtx->stringP-1, trgCtx->stringP, trgCtx->len-trgCtx->stringP-1);
|
|
incctx_cleanUpContext(srcCtx);
|
|
incctx_cleanUpContext(trgCtx);
|
|
return result;
|
|
}
|
|
|
|
#if 0
|
|
/* This is the old implementation, which should be removed... */
|
|
inline void *ucol_getABuffer(const UCollatorOld *coll, uint32_t size) {
|
|
return ((RuleBasedCollator *)coll)->getSomeMemory(size);
|
|
}
|
|
|
|
int32_t getComplicatedCE(const UCollatorOld *coll, collIterate *source, UErrorCode *status) {
|
|
if (*(source->CEpos) == UCOL_UNMAPPED) {
|
|
/* Returned an "unmapped" flag and save the character so it can be */
|
|
/* returned next time this method is called. */
|
|
if (*(source->pos) == 0x0000) return *(source->pos++); /* \u0000 is not valid in C++'s UnicodeString */
|
|
*(source->CEpos++) = UCOL_UNMAPPEDCHARVALUE;
|
|
*(source->CEpos++) = *(source->pos)<<16;
|
|
} else {
|
|
/* Contraction sequence start... */
|
|
if (*(source->CEpos) >= UCOL_CONTRACTCHARINDEX) {
|
|
UChar key[1024];
|
|
uint32_t posKey = 0;
|
|
|
|
VectorOfPToContractElement* list = ((RuleBasedCollator *)coll)->data->contractTable->at(*(source->CEpos)-UCOL_CONTRACTCHARINDEX);
|
|
/* The upper line obtained a list of contracting sequences. */
|
|
if (list != NULL) {
|
|
EntryPair *pair = (EntryPair *)list->at(0); /* Taking out the first one. */
|
|
int32_t order = pair->value; /* This got us mapping for just the first element - the one that signalled a contraction. */
|
|
|
|
key[posKey++] = *(source->pos++);
|
|
/* This tries to find the longes common match for the data in contraction table... */
|
|
/* and needs to be rewritten, especially the test down there! */
|
|
int32_t i;
|
|
int32_t listSize = list->size();
|
|
UBool foundSmaller = TRUE;
|
|
while(source->pos<source->len && foundSmaller) {
|
|
key[posKey++] = *source->pos;
|
|
|
|
foundSmaller = FALSE;
|
|
i = 0;
|
|
while(i<listSize && !foundSmaller) {
|
|
pair = list->at(i);
|
|
if ((pair != NULL) && (pair->fwd == TRUE /*fwd*/) && (pair->equalTo(key, posKey))) {
|
|
/* Found a matching contraction sequence */
|
|
order = pair->value; /* change the CE value */
|
|
source->pos++; /* consume another char from the source */
|
|
foundSmaller = TRUE;
|
|
}
|
|
i++;
|
|
|
|
}
|
|
}
|
|
source->pos--; /* spit back the last char - it wasn't part of the sequence */
|
|
*(source->CEpos) = order;
|
|
}
|
|
}
|
|
/* Expansion sequence start... */
|
|
if (*(source->CEpos) >= UCOL_EXPANDCHARINDEX) {
|
|
VectorOfInt *v = ((RuleBasedCollator *)coll)->data->expandTable->at(*(source->CEpos)-UCOL_EXPANDCHARINDEX);
|
|
if(v != NULL) {
|
|
int32_t expandindex=0;
|
|
int32_t vSize = v->size();
|
|
while(expandindex < vSize) {
|
|
*(source->CEpos++) = v->at(expandindex++);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Thai/Lao reordering */
|
|
if (UCOL_ISTHAIPREVOWEL(*(source->pos)) &&
|
|
UCOL_ISTHAIBASECONSONANT(*(source->pos+1))) {
|
|
if(source->isThai == TRUE) {
|
|
source->isThai = FALSE;
|
|
if((source->len - source->pos) > UCOL_WRITABLE_BUFFER_SIZE) {
|
|
/* allocate a new buffer */
|
|
source->writableBuffer = (UChar *)ucol_getABuffer(coll, (source->len - source->pos)*sizeof(UChar));
|
|
}
|
|
UChar *sourceCopy = source->pos;
|
|
UChar *targetCopy = source->writableBuffer;
|
|
while(sourceCopy < source->len) {
|
|
if(UCOL_ISTHAIPREVOWEL(*(sourceCopy)) &&
|
|
UCOL_ISTHAIBASECONSONANT(*(sourceCopy+1))) {
|
|
*(targetCopy) = *(sourceCopy+1);
|
|
*(targetCopy+1) = *(sourceCopy);
|
|
targetCopy+=2;
|
|
sourceCopy+=2;
|
|
} else {
|
|
*(targetCopy++) = *(sourceCopy++);
|
|
}
|
|
}
|
|
source->pos = source->writableBuffer;
|
|
source->len = targetCopy;
|
|
source->CEpos = source->toReturn = source->CEs;
|
|
return UCOL_IGNORABLE;
|
|
}
|
|
}
|
|
}
|
|
source->pos++;
|
|
return (*(source->toReturn++));
|
|
}
|
|
|
|
#endif
|
|
|