4304 lines
153 KiB
C++
4304 lines
153 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1996-1999, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* Modification history
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* Date Name Comments
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* 02/16/2001 synwee Added internal method getPrevSpecialCE
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* 03/01/2001 synwee Added maxexpansion functionality.
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*/
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#include "ucol_bld.h"
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#include "ucol_imp.h"
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#include "ucol_tok.h"
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#include "ucol_elm.h"
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#include "unicode/uloc.h"
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#include "unicode/coll.h"
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#include "unicode/tblcoll.h"
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#include "unicode/coleitr.h"
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#include "unicode/unorm.h"
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#include "unicode/udata.h"
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#include "cpputils.h"
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#include "cstring.h"
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#include "ucmp32.h"
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#include "umutex.h"
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#include "uhash.h"
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#include <stdio.h>
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static UCollator* UCA = NULL;
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extern "C" UBool checkFCD(const UChar*, int32_t, UErrorCode*);
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/* Fixup table a la Markus */
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/* see http://www.ibm.com/software/developer/library/utf16.html for further explanation */
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static uint8_t utf16fixup[32] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0x20, 0xf8, 0xf8, 0xf8, 0xf8
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};
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static UBool U_CALLCONV
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isAcceptableUCA(void *context,
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const char *type, const char *name,
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const UDataInfo *pInfo){
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/* context, type & name are intentionally not used */
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if( pInfo->size>=20 &&
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pInfo->isBigEndian==U_IS_BIG_ENDIAN &&
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pInfo->charsetFamily==U_CHARSET_FAMILY &&
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pInfo->dataFormat[0]==0x55 && /* dataFormat="UCol" */
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pInfo->dataFormat[1]==0x43 &&
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pInfo->dataFormat[2]==0x6f &&
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pInfo->dataFormat[3]==0x6c &&
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pInfo->formatVersion[0]==1 &&
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pInfo->dataVersion[0]==3 &&
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pInfo->dataVersion[1]==0 &&
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pInfo->dataVersion[2]==0 &&
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pInfo->dataVersion[3]==0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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/****************************************************************************/
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/* Following are the open/close functions */
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/* */
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/****************************************************************************/
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U_CAPI UCollator*
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ucol_open( const char *loc,
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UErrorCode *status)
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{
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/* New version */
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if(U_FAILURE(*status)) return 0;
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ucol_initUCA(status);
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UCollator *result = NULL;
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UResourceBundle *b = ures_open(NULL, loc, status);
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/* first take on tailoring version: */
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/* get CollationElements -> Version */
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UResourceBundle *binary = ures_getByKey(b, "%%CollationNew", NULL, status);
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if(*status == U_MISSING_RESOURCE_ERROR) { /* if we don't find tailoring, we'll fallback to UCA */
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*status = U_USING_DEFAULT_ERROR;
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result = ucol_initCollator(UCA->image, result, status);
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/*result = UCA;*/
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result->hasRealData = FALSE;
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} else if(U_SUCCESS(*status)) { /* otherwise, we'll pick a collation data that exists */
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int32_t len = 0;
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const uint8_t *inData = ures_getBinary(binary, &len, status);
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if((uint32_t)len > sizeof(UCATableHeader)) {
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result = ucol_initCollator((const UCATableHeader *)inData, result, status);
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result->hasRealData = TRUE;
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} else {
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result = ucol_initCollator(UCA->image, result, status);
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ucol_setOptionsFromHeader(result, (const UCATableHeader *)inData, status);
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result->hasRealData = FALSE;
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}
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} else { /* There is another error, and we're just gonna clean up */
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ures_close(b);
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return NULL;
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}
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result->rb = b;
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ures_close(binary);
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return result;
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}
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U_CAPI UCollator * U_EXPORT2
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ucol_openVersion(const char *loc,
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UVersionInfo version,
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UErrorCode *status) {
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UCollator *collator;
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UVersionInfo info;
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collator=ucol_open(loc, status);
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if(U_SUCCESS(*status)) {
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ucol_getVersion(collator, info);
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if(0!=uprv_memcmp(version, info, sizeof(UVersionInfo))) {
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ucol_close(collator);
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*status=U_MISSING_RESOURCE_ERROR;
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return NULL;
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}
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}
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return collator;
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}
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U_CAPI void
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ucol_close(UCollator *coll)
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{
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/* Here, it would be advisable to close: */
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/* - UData for UCA (unless we stuff it in the root resb */
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/* Again, do we need additional housekeeping... HMMM! */
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if(coll->freeOnClose == FALSE){
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return; /* for safeClone, if freeOnClose is FALSE,
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don't free the other instance data */
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}
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if(coll->mapping != NULL) {
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ucmp32_close(coll->mapping);
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}
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if(coll->rules != NULL && coll->freeRulesOnClose) {
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uprv_free((UChar *)coll->rules);
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}
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if(coll->rb != NULL) { /* pointing to read-only memory */
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ures_close(coll->rb);
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} else if(coll->hasRealData == TRUE) {
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uprv_free((UCATableHeader *)coll->image);
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}
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uprv_free(coll);
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}
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U_CAPI UCollator*
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ucol_openRules( const UChar *rules,
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int32_t rulesLength,
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UNormalizationMode mode,
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UCollationStrength strength,
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UErrorCode *status)
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{
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uint32_t listLen = 0;
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UColTokenParser src;
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ucol_initUCA(status);
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if(U_FAILURE(*status)) return 0;
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Normalizer::EMode normMode;
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switch(mode) {
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case UCOL_NO_NORMALIZATION:
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normMode = Normalizer::NO_OP;
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break;
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case UCOL_DECOMP_CAN:
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normMode = Normalizer::DECOMP;
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break;
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case UCOL_DECOMP_COMPAT:
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normMode = Normalizer::DECOMP_COMPAT;
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break;
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case UCOL_DECOMP_CAN_COMP_COMPAT:
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normMode = Normalizer::COMPOSE;
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break;
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case UCOL_DECOMP_COMPAT_COMP_CAN:
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normMode = Normalizer::COMPOSE_COMPAT;
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break;
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default:
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*status = U_ILLEGAL_ARGUMENT_ERROR;
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return 0;
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}
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/*src.source = rules;*/
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src.source = (UChar *)uprv_malloc((rulesLength+UCOL_TOK_EXTRA_RULE_SPACE_SIZE)*sizeof(UChar));
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uprv_memcpy(src.source, rules, rulesLength*sizeof(UChar));
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src.current = src.source;
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src.end = src.source+rulesLength;
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src.sourceCurrent = src.source;
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src.extraCurrent = src.end;
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src.extraEnd = src.end+UCOL_TOK_EXTRA_RULE_SPACE_SIZE;
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src.UCA = UCA;
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src.invUCA = ucol_initInverseUCA(status);
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src.resultLen = 0;
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src.lh = 0;
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src.image = (UCATableHeader *)uprv_malloc(sizeof(UCATableHeader));
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uprv_memcpy(src.image, UCA->image, sizeof(UCATableHeader));
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listLen = ucol_tok_assembleTokenList(&src, status);
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if(U_FAILURE(*status)) {
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/* if status is U_ILLEGAL_ARGUMENT_ERROR, src->current points at the offending option */
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/* if status is U_INVALID_FORMAT_ERROR, src->current points after the problematic part of the rules */
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/* so something might be done here... or on lower level */
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#ifdef UCOL_DEBUG
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if(*status == U_ILLEGAL_ARGUMENT_ERROR) {
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fprintf(stderr, "bad option starting at offset %i\n", src.current-src.source);
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} else {
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fprintf(stderr, "invalid rule just before offset %i\n", src.current-src.source);
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}
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#endif
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uprv_free(src.image);
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ucol_tok_closeTokenList(&src);
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return NULL;
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}
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UCollator *result = NULL;
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UCATableHeader *table = NULL;
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if(src.resultLen > 0) { /* we have a set of rules, let's make something of it */
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table = ucol_assembleTailoringTable(&src, status);
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result = ucol_initCollator(table,0,status);
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result->hasRealData = TRUE;
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} else { /* no rules, but no error either */
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/* must be only options */
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result = ucol_initCollator(UCA->image,0,status);
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ucol_setOptionsFromHeader(result, src.image, status);
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result->hasRealData = FALSE;
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}
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result->dataInfo.dataVersion[0] = UCOL_BUILDER_VERSION;
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if(U_SUCCESS(*status)) {
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result->rules = (UChar *)uprv_malloc((u_strlen(rules)+1)*sizeof(UChar));
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u_strcpy((UChar *)result->rules, rules);
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result->freeRulesOnClose = TRUE;
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result->rb = 0;
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} else {
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if(table != NULL) {
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uprv_free(table);
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ucol_close(result);
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}
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uprv_free(src.image);
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ucol_tok_closeTokenList(&src);
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return NULL;
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}
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uprv_free(src.image);
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ucol_tok_closeTokenList(&src);
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ucol_setAttribute(result, UCOL_STRENGTH, strength, status);
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return result;
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}
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/* This one is currently used by genrb & tests. After constructing from rules (tailoring),*/
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/* you should be able to get the binary chunk to write out... Doesn't look very full now */
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U_CAPI uint8_t *
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ucol_cloneRuleData(UCollator *coll, int32_t *length, UErrorCode *status)
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{
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uint8_t *result = NULL;
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if(coll->hasRealData == TRUE) {
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*length = coll->image->size;
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result = (uint8_t *)uprv_malloc(*length);
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uprv_memcpy(result, coll->image, *length);
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} else {
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*length = sizeof(UCATableHeader);
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result = (uint8_t *)uprv_malloc(sizeof(UCATableHeader));
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UCATableHeader *head = (UCATableHeader *)result;
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ucol_putOptionsToHeader(coll, head, status);
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}
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return result;
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}
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void ucol_setOptionsFromHeader(UCollator* result, const UCATableHeader * image, UErrorCode *status) {
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if(U_FAILURE(*status)) {
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return;
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}
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result->caseFirst = image->caseFirst;
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result->caseLevel = image->caseLevel;
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result->frenchCollation = image->frenchCollation;
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result->normalizationMode = image->normalizationMode;
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result->strength = image->strength;
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result->variableTopValue = image->variableTopValue;
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result->alternateHandling = image->alternateHandling;
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result->caseFirstisDefault = TRUE;
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result->caseLevelisDefault = TRUE;
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result->frenchCollationisDefault = TRUE;
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result->normalizationModeisDefault = TRUE;
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result->strengthisDefault = TRUE;
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result->variableTopValueisDefault = TRUE;
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ucol_updateInternalState(result);
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}
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void ucol_putOptionsToHeader(UCollator* result, UCATableHeader * image, UErrorCode *status) {
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if(U_FAILURE(*status)) {
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return;
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}
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image->caseFirst = result->caseFirst;
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image->caseLevel = result->caseLevel;
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image->frenchCollation = result->frenchCollation;
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image->normalizationMode = result->normalizationMode;
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image->strength = result->strength;
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image->variableTopValue = result->variableTopValue;
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image->alternateHandling = result->alternateHandling;
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}
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static void addCEtoContrHash(uint32_t ce, uint8_t *cTable, UCollator* coll)
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{
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uint32_t offset;
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UChar c;
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const UChar *cPtr;
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const uint32_t *cePtr;
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offset = getContractOffset(ce); /* Uchar (!) offset from top of data image into */
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cPtr = (UChar *)coll->image + offset; /* contraction UChars table. */
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offset = cPtr - coll->contractionIndex; /* Convert to an integer index that can be */
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/* used for both the UChar and CE tables */
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fprintf(stderr, " Index to contraction table arrays is %x\n", offset);
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offset++;
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/* loop through all contraction UChars in this section of the contraction table */
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/* add each to the hash table, and recursively do the CE for each. */
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cPtr = coll->contractionIndex;
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cePtr = coll->contractionCEs;
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for (c=cPtr[offset]; c != 0xffff; c=cPtr[++offset]) {
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uint32_t i;
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uint8_t bitInByte;
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uint32_t ce;
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fprintf(stderr, " adding char %x, offset = %x. CE is %x\n", c, offset, cePtr[offset]);
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if (c < 256) /* hash the UChar */
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i = c >> 3;
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else
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i = 32 + ((c & UCOL_UNSAFECP_TABLE_MASK) >> 3);
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bitInByte = 1 << (c & 0x7); /* set the bit in the hash table. */
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//cTable[i] |= bitInByte;
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ce = cePtr[offset]; /* recursively add the corresponding CE, */
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if (isContraction(ce)) { /* if it's another contraction. */
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fprintf(stderr, " Recursing on the CE ...\n");
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addCEtoContrHash(ce, cTable, coll);
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fprintf(stderr, " Return from recursion.\n");
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}
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}
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}
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static void buildUnsafeCPTable(uint8_t *cTable, UCollator* coll) {
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uint32_t ce;
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UChar32 c;
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int32_t i;
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uint8_t bitInByte;
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fprintf(stderr, "Building UnSafeCharTable... ");
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uprv_memset(cTable, 0, UCOL_UNSAFECP_TABLE_SIZE);
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for (UChar cp=0; cp<0xffff; cp++) {
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ce = ucmp32_get(coll->mapping, cp);
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// ce = CEs[i];
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if (isContraction(ce)) {
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fprintf(stderr, "char, CE = %x %x\n", cp, ce);
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addCEtoContrHash(ce, cTable, coll);
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}
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}
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#if 0
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// Do again for main UCA table. ???
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if (UCA) { // But don't do when initing the global UCA itself.
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CEs = (uint32_t *)ucmp32_getArray(UCA->mapping);
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numCEs = ucmp32_getCount(UCA->mapping);
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for (i=0; i<numCEs; i++) {
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ce = CEs[i];
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if (isContraction(ce))
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addCEtoContrHash(ce, cTable, coll);
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}
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}
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#endif
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// Add all characters with combining class != 0
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for (c=0; c<=0xffff; c++) {
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if (c >= 0xd800 && c <= 0xf7ff)
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continue;
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if (u_getCombiningClass(c) != 0) {
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if (c < 256)
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i = c >> 3;
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else
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i = 32 + ((c & UCOL_UNSAFECP_TABLE_MASK) >> 3);
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bitInByte = 1 << (c & 0x7);
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cTable[i] |= bitInByte;
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}
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}
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int count = 0;
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for (i=0; i<UCOL_UNSAFECP_TABLE_SIZE; i++) {
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uint8_t b = cTable[i];
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for (int bit=0; bit<8; bit++) {
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if (b & 1)
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count ++;
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b >>= 1;
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}
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}
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fprintf(stderr, "done. %d entries.\n", count);
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}
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UCollator* ucol_initCollator(const UCATableHeader *image, UCollator *fillIn, UErrorCode *status) {
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UCollator *result = fillIn;
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if(U_FAILURE(*status) || image == NULL) {
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return NULL;
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}
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if(result == NULL) {
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result = (UCollator *)uprv_malloc(sizeof(UCollator));
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if(result == NULL) {
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*status = U_MEMORY_ALLOCATION_ERROR;
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return result;
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}
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result->freeOnClose = TRUE;
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} else {
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result->freeOnClose = FALSE;
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}
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result->image = image;
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const uint8_t *mapping = (uint8_t*)result->image+result->image->mappingPosition;
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CompactIntArray *newUCAmapping = ucmp32_openFromData(&mapping, status);
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if(U_SUCCESS(*status)) {
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result->mapping = newUCAmapping;
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} else {
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if(result->freeOnClose == TRUE) {
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uprv_free(result);
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result = NULL;
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}
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return result;
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}
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result->latinOneMapping = (uint32_t*)((uint8_t*)result->image+result->image->latinOneMapping);
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result->contractionCEs = (uint32_t*)((uint8_t*)result->image+result->image->contractionCEs);
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result->contractionIndex = (UChar*)((uint8_t*)result->image+result->image->contractionIndex);
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result->expansion = (uint32_t*)((uint8_t*)result->image+result->image->expansion);
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/* set attributes */
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result->caseFirst = result->image->caseFirst;
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result->caseLevel = result->image->caseLevel;
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result->frenchCollation = result->image->frenchCollation;
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result->normalizationMode = result->image->normalizationMode;
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result->strength = result->image->strength;
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result->variableTopValue = result->image->variableTopValue;
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result->alternateHandling = result->image->alternateHandling;
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result->caseFirstisDefault = TRUE;
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result->caseLevelisDefault = TRUE;
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result->frenchCollationisDefault = TRUE;
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result->normalizationModeisDefault = TRUE;
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result->strengthisDefault = TRUE;
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result->variableTopValueisDefault = TRUE;
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result->alternateHandlingisDefault = TRUE;
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uint32_t variableMaxCE = ucmp32_get(result->mapping, result->variableTopValue);
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result->variableMax1 = (uint8_t)((variableMaxCE & 0xFF000000) >> 24);
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result->variableMax2 = (uint8_t)((variableMaxCE & 0x00FF0000) >> 16);
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result->scriptOrder = NULL;
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result->zero = 0;
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result->rules = NULL;
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/* get the version info form UCATableHeader and populate the Collator struct*/
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result->dataInfo.dataVersion[0] = result->image->version[0]; /* UCA Builder version*/
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|
result->dataInfo.dataVersion[1] = result->image->version[1]; /* UCA Tailoring rules version*/
|
|
|
|
#if 0
|
|
/* Build the unsafe chars hash table */
|
|
uint8_t *t; /*non-const, unlike result->unsafeCP */
|
|
/* result->unsafeCP = */ t = (uint8_t *)uprv_malloc(UCOL_UNSAFECP_TABLE_SIZE);
|
|
buildUnsafeCPTable(t, result);
|
|
#endif
|
|
result->unsafeCP = (uint8_t *)result->image + result->image->unsafeCP;
|
|
|
|
/* max expansion tables */
|
|
result->endExpansionCE = (uint32_t*)((uint8_t*)result->image +
|
|
result->image->endExpansionCE);
|
|
result->lastEndExpansionCE = result->endExpansionCE +
|
|
result->image->endExpansionCECount - 1;
|
|
result->expansionCESize = (uint8_t*)result->image +
|
|
result->image->expansionCESize;
|
|
result->errorCode = *status;
|
|
|
|
ucol_updateInternalState(result);
|
|
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, isAcceptableUCA, NULL, status);
|
|
|
|
if(U_FAILURE(*status)) {
|
|
udata_close(result);
|
|
uprv_free(newUCA);
|
|
}
|
|
|
|
if(result != NULL) { /* It looks like sometimes we can fail to find the data file */
|
|
newUCA = ucol_initCollator((const UCATableHeader *)udata_getMemory(result), newUCA, status);
|
|
newUCA->rb = NULL;
|
|
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 (collationSource->CEpos > collationSource->toReturn) { /* Are there any CEs from previous expansions? */
|
|
order = *(collationSource->toReturn++); /* if so, return them */
|
|
if(collationSource->CEpos == collationSource->toReturn) {
|
|
collationSource->CEpos = collationSource->toReturn = collationSource->CEs;
|
|
}
|
|
} else if(collationSource->pos < collationSource->len) { /* This is the real business now */
|
|
UChar ch = *collationSource->pos++;
|
|
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, order, 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 */
|
|
} else {
|
|
order = UCOL_NO_MORE_CES; /* if so, we won't play any more */
|
|
}
|
|
/* This means that contraction should spit back the last codepoint eaten! */
|
|
return order; /* return the CE */
|
|
}
|
|
|
|
/* this should be connected to special Jamo handling */
|
|
uint32_t ucol_getFirstCE(const UCollator *coll, UChar u, UErrorCode *status) {
|
|
collIterate colIt;
|
|
uint32_t order;
|
|
init_collIterate(coll, &u, 1, &colIt, FALSE);
|
|
order = ucol_getNextCE(coll, &colIt, status);
|
|
/*UCOL_GETNEXTCE(order, coll, colIt, status);*/
|
|
return order;
|
|
}
|
|
|
|
void getSpecialJamo(const UCollator *coll, uint32_t CE, uint32_t **buffer) {
|
|
for(;;) {
|
|
uint32_t tag = getCETag(CE);
|
|
if(tag == THAI_TAG || tag == EXPANSION_TAG) {
|
|
uint32_t i = 0;
|
|
uint32_t *CEOffset = (uint32_t *)coll->image+getExpansionOffset(CE); /* find the offset to expansion table */
|
|
uint32_t size = getExpansionCount(CE);
|
|
if(size != 0) { /* if there are less than 16 elements in expansion, we don't terminate */
|
|
for(i = 1; i<size; i++) {
|
|
*(*buffer++) = *CEOffset++;
|
|
}
|
|
} else { /* else, we do */
|
|
while(*CEOffset != 0) {
|
|
*(*buffer++) = *CEOffset++;
|
|
}
|
|
}
|
|
break;
|
|
} else if(tag == CONTRACTION_TAG) {
|
|
const UChar *ContractionStart = (UChar *)coll->image+getContractOffset(CE);
|
|
*(*buffer++) = *(coll->contractionCEs + (ContractionStart- coll->contractionIndex));
|
|
}
|
|
}
|
|
}
|
|
|
|
void ucol_getJamoCEs(const UCollator *coll, UChar ch, uint32_t **buffer) {
|
|
uint32_t order;
|
|
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 */
|
|
getSpecialJamo(coll, order, buffer); /* and try to get the special CE */
|
|
} else if(order == UCOL_NOT_FOUND) { /* consult the UCA */
|
|
if(ch <= 0xFF) { /* if it's Latin One, we'll try to fast track it */
|
|
order = UCA->latinOneMapping[ch]; /* by looking in up in an array */
|
|
} else { /* otherwise, */
|
|
order = ucmp32_get(UCA->mapping, ch); /* we'll go for slightly slower trie */
|
|
}
|
|
if(order > UCOL_NOT_FOUND) {
|
|
getSpecialJamo(UCA, order, buffer); /* and try to get the special CE */
|
|
}
|
|
}
|
|
*(*buffer++) = 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_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, order, 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;
|
|
const uint32_t
|
|
SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7,
|
|
LCount = 19, VCount = 21, TCount = 28,
|
|
NCount = VCount * TCount, // 588
|
|
SCount = LCount * NCount; // 11172
|
|
//LLimit = LBase + LCount, // 1113
|
|
//VLimit = VBase + VCount, // 1176
|
|
//TLimit = TBase + TCount, // 11C3
|
|
//SLimit = SBase + SCount; // D7A4
|
|
|
|
// once we have failed to find a match for codepoint cp, and are in the implicit code.
|
|
|
|
uint32_t L = ch - SBase;
|
|
//if (ch < SLimit) { // since it is unsigned, catchs zero case too
|
|
if (L < SCount) { // since it is unsigned, catchs zero case too
|
|
|
|
// divide into pieces
|
|
|
|
uint32_t T = L % TCount; // we do it in this order since some compilers can do % and / in one operation
|
|
L /= TCount;
|
|
uint32_t V = L % VCount;
|
|
L /= VCount;
|
|
|
|
// offset them
|
|
|
|
L += LBase;
|
|
V += VBase;
|
|
T += TBase;
|
|
|
|
// return the first CE, but first put the rest into the expansion buffer
|
|
if (!collationSource->coll->image->jamoSpecial) { // FAST PATH
|
|
|
|
*(collationSource->CEpos++) = ucmp32_get(UCA->mapping, V);
|
|
if (T != TBase) {
|
|
*(collationSource->CEpos++) = ucmp32_get(UCA->mapping, T);
|
|
}
|
|
|
|
return ucmp32_get(UCA->mapping, L); // return first one
|
|
|
|
} else { // Jamo is Special
|
|
ucol_getJamoCEs(collationSource->coll, L, &collationSource->CEpos);
|
|
ucol_getJamoCEs(collationSource->coll, V, &collationSource->CEpos);
|
|
if (T != TBase) {
|
|
ucol_getJamoCEs(collationSource->coll, T, &collationSource->CEpos);
|
|
}
|
|
return *(collationSource->toReturn++);
|
|
/*
|
|
// do recursive processing of L, V, and T with fetchCE (but T only if not equal to TBase!!)
|
|
// Since fetchCE returns a CE, and (potentially) stuffs items into the ce buffer,
|
|
// this is how it is done.
|
|
int firstCE = fetchCE(L, ...);
|
|
int* lastExpansion = expansionBufferEnd++; // set pointer, leave gap!
|
|
*lastExpansion = fetchCE(V,...);
|
|
if (T != TBase) {
|
|
lastExpansion = expansionBufferEnd++; // set pointer, leave gap!
|
|
*lastExpansion = fetchCE(T,...);
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
|
|
if(UTF_IS_FIRST_SURROGATE(ch)) {
|
|
if( (collationSource->pos<collationSource->len) &&
|
|
UTF_IS_SECOND_SURROGATE((nextChar=*collationSource->pos))) {
|
|
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 = 0xD0800303 | (ch & 0xF000) << 12 | (ch & 0x0FE0) << 11;
|
|
*(collationSource->CEpos++) = 0x04000080 | (ch & 0x001F) << 27;
|
|
}
|
|
}
|
|
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_getPrevUCA(UChar ch, collIterate *collationSource,
|
|
uint32_t length, UErrorCode *status)
|
|
{
|
|
uint32_t order;
|
|
if (ch < 0xFF) {
|
|
order = UCA->latinOneMapping[ch];
|
|
}
|
|
else {
|
|
order = ucmp32_get(UCA->mapping, ch);
|
|
}
|
|
|
|
if (order >= UCOL_NOT_FOUND) {
|
|
order = getSpecialPrevCE(UCA, order, collationSource, length, 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 prevChar;
|
|
uint32_t
|
|
SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7,
|
|
LCount = 19, VCount = 21, TCount = 28,
|
|
NCount = VCount * TCount, /* 588 */
|
|
SCount = LCount * NCount; /* 11172 */
|
|
/*
|
|
LLimit = LBase + LCount, // 1113
|
|
VLimit = VBase + VCount, // 1176
|
|
TLimit = TBase + TCount, // 11C3
|
|
SLimit = SBase + SCount; // D7A4
|
|
*/
|
|
|
|
/*
|
|
once we have failed to find a match for codepoint cp, and are in the
|
|
implicit code.
|
|
*/
|
|
|
|
uint32_t L = ch - SBase;
|
|
if (L < SCount)
|
|
{ /* since it is unsigned, catchs zero case too */
|
|
|
|
/*
|
|
divide into pieces.
|
|
we do it in this order since some compilers can do % and / in one
|
|
operation
|
|
*/
|
|
uint32_t T = L % TCount;
|
|
L /= TCount;
|
|
uint32_t V = L % VCount;
|
|
L /= VCount;
|
|
|
|
/* offset them */
|
|
L += LBase;
|
|
V += VBase;
|
|
T += TBase;
|
|
|
|
/*
|
|
return the first CE, but first put the rest into the expansion buffer
|
|
*/
|
|
if (!collationSource->coll->image->jamoSpecial)
|
|
{
|
|
*(collationSource->CEpos ++) = ucmp32_get(UCA->mapping, L);
|
|
*(collationSource->CEpos ++) = ucmp32_get(UCA->mapping, V);
|
|
if (T != TBase)
|
|
*(collationSource->CEpos ++) = ucmp32_get(UCA->mapping, T);
|
|
|
|
collationSource->toReturn = collationSource->CEpos - 1;
|
|
return *(collationSource->toReturn);
|
|
} else {
|
|
ucol_getJamoCEs(collationSource->coll, L, &collationSource->CEpos);
|
|
ucol_getJamoCEs(collationSource->coll, V, &collationSource->CEpos);
|
|
if (T != TBase) {
|
|
ucol_getJamoCEs(collationSource->coll, T, &collationSource->CEpos);
|
|
}
|
|
collationSource->toReturn = collationSource->CEpos - 1;
|
|
return *(collationSource->toReturn);
|
|
/*
|
|
synwee :TODO
|
|
Heh heh.... waiting for vladimir's code, me cut and paste
|
|
Jamo is Special
|
|
do recursive processing of L, V, and T with fetchCE (but T only if not
|
|
equal to TBase!!)
|
|
Since fetchCE returns a CE, and (potentially) stuffs items into the ce
|
|
buffer,
|
|
this is how it is done.
|
|
*/
|
|
/*
|
|
int firstCE = fetchCE(L, ...);
|
|
// set pointer, leave gap!
|
|
int* lastExpansion = expansionBufferEnd++;
|
|
*lastExpansion = fetchCE(V,...);
|
|
if (T != TBase) {
|
|
lastExpansion = expansionBufferEnd++; // set pointer, leave gap!
|
|
*lastExpansion = fetchCE(T,...);
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
|
|
if (UTF_IS_SECOND_SURROGATE(ch))
|
|
{
|
|
/* This is where the s***t hits the fan */
|
|
/* it turns out, the first part of the if can be satisfied even if we're */
|
|
/* at the beggining of the string */
|
|
/* we have to make sure we know what is the situation we're in */
|
|
/* quick fix is by using isUsingWritable, as shown below */
|
|
if ((collationSource->start < collationSource->pos) &&
|
|
(UTF_IS_FIRST_SURROGATE(prevChar = *(collationSource->pos - 1))))
|
|
{
|
|
uint32_t cp = ((prevChar << 10UL) + ch - ((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
|
|
*/
|
|
*(collationSource->CEpos ++) = 0xE0010303 | (cp & 0xFFE00) << 8;
|
|
order = 0x80200080 | (cp & 0x001FF) << 22;
|
|
collationSource->toReturn = collationSource->CEpos;
|
|
*(collationSource->CEpos ++) = order;
|
|
}
|
|
else {
|
|
return 0; /* completely ignorable */
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* otherwise */
|
|
if (UTF_IS_FIRST_SURROGATE(ch) || (ch & 0xFFFE) == 0xFFFE) {
|
|
return 0; /* completely ignorable */
|
|
}
|
|
|
|
/* Make up an artifical CE from code point as per UCA */
|
|
*(collationSource->CEpos ++) = 0xD0800303 | (ch & 0xF000) << 12 |
|
|
(ch & 0x0FE0) << 11;
|
|
collationSource->toReturn = collationSource->CEpos;
|
|
order = 0x04000080 | (ch & 0x001F) << 27;
|
|
*(collationSource->CEpos ++) = order;
|
|
}
|
|
}
|
|
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, uint32_t CE, collIterate *source, UErrorCode *status) {
|
|
uint32_t i = 0; /* general counter */
|
|
uint32_t firstFound = UCOL_NOT_FOUND;
|
|
//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;
|
|
case SURROGATE_TAG:
|
|
/* pending surrogate discussion with Markus and Mark */
|
|
return UCOL_NOT_FOUND;
|
|
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 */
|
|
--source->pos;
|
|
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->start = 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 = (uint32_t *)coll->image+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);
|
|
|
|
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... */
|
|
if (CE == UCOL_NOT_FOUND && firstFound != UCOL_NOT_FOUND) {
|
|
CE = firstFound;
|
|
firstFound = UCOL_NOT_FOUND;
|
|
source->pos--; /* spit out yet another char, which led us in this contraction */
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* 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 */
|
|
|
|
|
|
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 */
|
|
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 0
|
|
/* old code, with problem */
|
|
if(!isContraction(CE)) {
|
|
break;
|
|
}
|
|
#endif
|
|
/* there is a bug here which will make us look bad if we have multiple level contraction */
|
|
/* that fails after level 1 */
|
|
if(CE == UCOL_NOT_FOUND) {
|
|
if(firstFound != UCOL_NOT_FOUND) {
|
|
CE = firstFound;
|
|
firstFound = UCOL_NOT_FOUND;
|
|
source->pos--; /* spit out yet another char, which led us in this contraction */
|
|
break;
|
|
}
|
|
} else if(isContraction(CE)) { /* fix for the bug. Other places need to be checked */
|
|
/* this is contraction, and we will continue. However, we can fail along the */
|
|
/* the road, which means that we have part of contraction correct */
|
|
firstFound = *(coll->contractionCEs + (ContractionStart - coll->contractionIndex));
|
|
} else {
|
|
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++;
|
|
}
|
|
}
|
|
return CE;
|
|
case CHARSET_TAG:
|
|
/* probably after 1.8 */
|
|
return UCOL_NOT_FOUND;
|
|
default:
|
|
*status = U_INTERNAL_PROGRAM_ERROR;
|
|
CE=0;
|
|
break;
|
|
}
|
|
if (CE <= UCOL_NOT_FOUND) break;
|
|
}
|
|
return CE;
|
|
}
|
|
|
|
/**
|
|
* This function handles the special CEs like contractions, expansions,
|
|
* surrogates, Thai.
|
|
* It is called by both getPrevCE and getPrevUCA
|
|
*/
|
|
uint32_t getSpecialPrevCE(const UCollator *coll, uint32_t CE,
|
|
collIterate *source, uint32_t length,
|
|
UErrorCode *status)
|
|
{
|
|
uint32_t count = 0;
|
|
const uint32_t *CEOffset = NULL;
|
|
const UChar *UCharOffset = NULL;
|
|
UChar schar,
|
|
tchar;
|
|
const UChar *strend = NULL;
|
|
const UChar *constart = NULL;
|
|
uint32_t size;
|
|
uint32_t firstCE = UCOL_NOT_FOUND;
|
|
UChar *firstUChar = source->pos;
|
|
for(;;)
|
|
{
|
|
/* the only ces that loops are thai and contractions */
|
|
switch (getCETag(CE))
|
|
{
|
|
case NOT_FOUND_TAG: /* this tag always returns */
|
|
return CE;
|
|
case SURROGATE_TAG: /* this tag always returns */
|
|
/* pending surrogate discussion with Markus and Mark */
|
|
return UCOL_NOT_FOUND;
|
|
case THAI_TAG:
|
|
if (source->isThai == TRUE)
|
|
{ /* if we encountered Thai prevowel & the string is not yet touched */
|
|
source->isThai = FALSE;
|
|
strend = source->pos;
|
|
size = strend - source->string;
|
|
if (size > UCOL_WRITABLE_BUFFER_SIZE)
|
|
{
|
|
/*
|
|
someone else has already allocated something
|
|
*/
|
|
if (source->writableBuffer != source->stackWritableBuffer) {
|
|
uprv_free(source->writableBuffer);
|
|
}
|
|
source->writableBuffer =
|
|
(UChar *)uprv_malloc(size * sizeof(UChar));
|
|
source->isThai = FALSE;
|
|
}
|
|
UChar *sourceCopy = source->string;
|
|
UChar *targetCopy = source->writableBuffer;
|
|
while (sourceCopy <= strend) {
|
|
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 = targetCopy;
|
|
source->start = 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
|
|
*/
|
|
/* find the offset to expansion table */
|
|
CEOffset = (uint32_t *)coll->image + getExpansionOffset(CE);
|
|
CE = *CEOffset ++;
|
|
}
|
|
break;
|
|
case CONTRACTION_TAG:
|
|
/* This should handle contractions */
|
|
for(;;)
|
|
{
|
|
/*
|
|
First we position ourselves at the begining of contraction sequence
|
|
*/
|
|
constart = UCharOffset = (UChar *)coll->image + getContractOffset(CE);
|
|
strend = source->len;
|
|
|
|
if (firstCE == UCOL_NOT_FOUND) {
|
|
firstCE = *(coll->contractionCEs +
|
|
(UCharOffset - coll->contractionIndex));
|
|
}
|
|
|
|
if (source->pos == source->start) {
|
|
/* this is the start of string */
|
|
CE = *(coll->contractionCEs +
|
|
(UCharOffset - coll->contractionIndex));
|
|
if (CE == UCOL_NOT_FOUND && firstCE != UCOL_NOT_FOUND) {
|
|
CE = firstCE;
|
|
/* firstCE = UCOL_NOT_FOUND;*/
|
|
source->pos = firstUChar;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/*
|
|
Progressing to backwards block
|
|
*/
|
|
UCharOffset += *UCharOffset;
|
|
|
|
schar = *(source->pos - 1);
|
|
while (schar > (tchar = *UCharOffset)) {
|
|
UCharOffset ++;
|
|
}
|
|
|
|
if (schar != tchar) {
|
|
UCharOffset = constart;
|
|
}
|
|
else {
|
|
source->pos --;
|
|
}
|
|
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
|
|
if (!isContraction(CE)) {
|
|
if (CE == UCOL_NOT_FOUND) {
|
|
CE = firstCE;
|
|
source->pos = firstUChar;
|
|
}
|
|
firstCE = UCOL_NOT_FOUND;
|
|
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case EXPANSION_TAG: /* this tag always returns */
|
|
/*
|
|
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
|
|
*/
|
|
/* find the offset to expansion table */
|
|
CEOffset = (uint32_t *)coll->image + getExpansionOffset(CE);
|
|
size = getExpansionCount(CE);
|
|
if (size != 0) {
|
|
/*
|
|
if there are less than 16 elements in expansion, we don't terminate
|
|
*/
|
|
for (count = 0; count < size; count++) {
|
|
*(source->CEpos ++) = *CEOffset++;
|
|
}
|
|
}
|
|
else {
|
|
/* else, we do */
|
|
while (*CEOffset != 0) {
|
|
*(source->CEpos ++) = *CEOffset ++;
|
|
}
|
|
}
|
|
source->toReturn = source->CEpos - 1;
|
|
return *(source->toReturn);
|
|
case CHARSET_TAG: /* this tag always returns */
|
|
/* probably after 1.8 */
|
|
return UCOL_NOT_FOUND;
|
|
default: /* this tag always returns */
|
|
*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, uint32_t *secSize, uint32_t newSize, UErrorCode *status) {
|
|
fprintf(stderr, ".");
|
|
uint8_t *newStart = NULL;
|
|
|
|
if(secStart==second) {
|
|
newStart=(uint8_t*)uprv_malloc(newSize);
|
|
if(newStart==NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
uprv_memcpy(newStart, secStart, *secondaries-secStart);
|
|
} else {
|
|
newStart=(uint8_t*)uprv_realloc(secStart, newSize);
|
|
if(newStart==NULL) {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
return NULL;
|
|
}
|
|
}
|
|
*secondaries=newStart+(*secondaries-secStart);
|
|
*secSize=newSize;
|
|
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 */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
/* 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;
|
|
/* this uses the function pointer that is set in updateinternalstate */
|
|
/* currently, there are two funcs: */
|
|
/*ucol_calcSortKey(...);*/
|
|
/*ucol_calcSortKeySimpleTertiary(...);*/
|
|
|
|
int32_t keySize = coll->sortKeyGen(coll, source, sourceLength, &result, resultLength, FALSE, &status);
|
|
((UCollator *)coll)->errorCode = status; /*semantically const */
|
|
return keySize;
|
|
}
|
|
|
|
/* 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 = (uint8_t)((strength >= UCOL_SECONDARY)?0:0xFF);
|
|
uint8_t compareTer = (uint8_t)((strength >= UCOL_TERTIARY)?0:0xFF);
|
|
uint8_t compareQuad = (uint8_t)((strength >= UCOL_QUATERNARY)?0:0xFF);
|
|
UBool compareIdent = (strength == UCOL_IDENTICAL);
|
|
UBool doCase = (coll->caseLevel == UCOL_ON);
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && (compareQuad == 0);
|
|
UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && (compareSec == 0);
|
|
|
|
uint8_t variableMax1 = coll->variableMax1;
|
|
uint8_t variableMax2 = coll->variableMax2;
|
|
uint8_t UCOL_COMMON_BOT4 = (uint8_t)(variableMax1+1);
|
|
uint8_t UCOL_BOT_COUNT4 = (uint8_t)(0xFF - UCOL_COMMON_BOT4);
|
|
|
|
int32_t order = UCOL_NO_MORE_CES;
|
|
uint8_t primary1 = 0;
|
|
uint8_t primary2 = 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 */
|
|
|
|
uint8_t caseSwitch = coll->caseSwitch;
|
|
uint8_t tertiaryMask = coll->tertiaryMask;
|
|
|
|
UBool wasShifted = FALSE;
|
|
UBool notIsContinuation = FALSE;
|
|
|
|
|
|
for(;;) {
|
|
order = ucol_getNextCE(coll, s, &status);
|
|
/*UCOL_GETNEXTCE(order, coll, *s, &status);*/
|
|
|
|
if(isCEIgnorable(order)) {
|
|
continue;
|
|
}
|
|
|
|
if(order == UCOL_NO_MORE_CES) {
|
|
break;
|
|
}
|
|
|
|
/* We're saving order in ce, since we will destroy order in order to get primary, secondary, tertiary in order ;)*/
|
|
ce = order;
|
|
notIsContinuation = !isContinuation(ce);
|
|
|
|
|
|
order ^= caseSwitch;
|
|
tertiary = (uint8_t)((order & tertiaryMask));
|
|
secondary = (uint8_t)((order >>= 8) & 0xFF);
|
|
primary2 = (uint8_t)((order >>= 8) & 0xFF);
|
|
primary1 = (uint8_t)(order >>= 8);
|
|
|
|
|
|
if(shifted && ((notIsContinuation && primary1 <= variableMax1 && primary1 > 0
|
|
&& (primary1 < variableMax1 || primary1 == variableMax1 && primary2 < variableMax2))
|
|
|| (!notIsContinuation && wasShifted))) {
|
|
if(c4 > 0) {
|
|
currentSize += (c2/UCOL_BOT_COUNT4)+1;
|
|
c4 = 0;
|
|
}
|
|
currentSize++;
|
|
if(primary2 != 0) {
|
|
currentSize++;
|
|
}
|
|
wasShifted = TRUE;
|
|
} else {
|
|
wasShifted = FALSE;
|
|
/* 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_IGNORABLE) {
|
|
currentSize++;
|
|
if(primary2 != UCOL_IGNORABLE) {
|
|
currentSize++;
|
|
}
|
|
}
|
|
|
|
if(secondary > compareSec) { /* I think that != 0 test should be != IGNORABLE */
|
|
if(!isFrenchSec){
|
|
if (secondary == UCOL_COMMON2 && notIsContinuation) {
|
|
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++;
|
|
}
|
|
} else {
|
|
currentSize++;
|
|
}
|
|
}
|
|
|
|
if(doCase) {
|
|
if (caseShift == 0) {
|
|
currentSize++;
|
|
caseShift = 7;
|
|
}
|
|
if(tertiary > 0) {
|
|
caseShift--;
|
|
}
|
|
}
|
|
|
|
if(tertiary > compareTer) { /* I think that != 0 test should be != IGNORABLE */
|
|
if (tertiary == UCOL_COMMON3 && notIsContinuation) {
|
|
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 && notIsContinuation) {
|
|
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++;
|
|
}
|
|
ident++;
|
|
}
|
|
|
|
}
|
|
|
|
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,
|
|
uint32_t resultLength,
|
|
UBool allocatePrimary,
|
|
UErrorCode *status)
|
|
{
|
|
uint32_t i = 0; /* general purpose counter */
|
|
|
|
/* Stack allocated buffers for buffers we use */
|
|
uint8_t prim[UCOL_PRIMARY_MAX_BUFFER], second[UCOL_SECONDARY_MAX_BUFFER], tert[UCOL_TERTIARY_MAX_BUFFER], caseB[UCOL_CASE_MAX_BUFFER], quad[UCOL_QUAD_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 = prim;
|
|
resultLength = UCOL_PRIMARY_MAX_BUFFER;
|
|
}
|
|
uint8_t *primarySafeEnd = primaries + resultLength - 2;
|
|
|
|
uint32_t secSize = UCOL_SECONDARY_MAX_BUFFER, terSize = UCOL_TERTIARY_MAX_BUFFER,
|
|
caseSize = UCOL_CASE_MAX_BUFFER, quadSize = UCOL_QUAD_MAX_BUFFER;
|
|
|
|
uint32_t sortKeySize = 1; /* it is always \0 terminated */
|
|
|
|
UChar normBuffer[UCOL_NORMALIZATION_MAX_BUFFER];
|
|
UChar *normSource = normBuffer;
|
|
int32_t normSourceLen = UCOL_NORMALIZATION_MAX_BUFFER;
|
|
|
|
int32_t len = (sourceLength == -1 ? u_strlen(source) : sourceLength);
|
|
|
|
uint8_t variableMax1 = coll->variableMax1;
|
|
uint8_t variableMax2 = coll->variableMax2;
|
|
uint8_t UCOL_COMMON_BOT4 = (uint8_t)(variableMax1+1);
|
|
uint8_t UCOL_BOT_COUNT4 = (uint8_t)(0xFF - UCOL_COMMON_BOT4);
|
|
|
|
UColAttributeValue strength = coll->strength;
|
|
|
|
uint8_t compareSec = (uint8_t)((strength >= UCOL_SECONDARY)?0:0xFF);
|
|
uint8_t compareTer = (uint8_t)((strength >= UCOL_TERTIARY)?0:0xFF);
|
|
uint8_t compareQuad = (uint8_t)((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(coll, (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(compareIdent) {
|
|
if(unorm_quickCheck(source, len, UNORM_NFD, status) != UNORM_YES) {
|
|
normSourceLen = unorm_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 = unorm_normalize(source, sourceLength, UNORM_NFD, 0, normSource, (normSourceLen+1), status);
|
|
}
|
|
normSource[normSourceLen] = 0;
|
|
s.string = normSource;
|
|
s.pos = normSource;
|
|
s.len = normSource+normSourceLen;
|
|
}
|
|
} else if((normMode != UCOL_OFF)
|
|
/* changed by synwee */
|
|
&& !checkFCD(source, len, status))
|
|
{
|
|
normSourceLen = unorm_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 = unorm_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);
|
|
}
|
|
|
|
uint32_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 primary1 = 0;
|
|
uint8_t primary2 = 0;
|
|
uint8_t secondary = 0;
|
|
uint8_t tertiary = 0;
|
|
uint8_t caseSwitch = coll->caseSwitch;
|
|
uint8_t tertiaryMask = coll->tertiaryMask;
|
|
UBool caseBit = FALSE;
|
|
|
|
UBool finished = FALSE;
|
|
UBool resultOverflow = FALSE;
|
|
UBool wasShifted = FALSE;
|
|
UBool notIsContinuation = FALSE;
|
|
|
|
uint32_t prevBuffSize = 0;
|
|
|
|
uint32_t count2 = 0, count3 = 0, count4 = 0;
|
|
|
|
for(;;) {
|
|
for(i=prevBuffSize; i<minBufferSize; ++i) {
|
|
|
|
/*order = ucol_getNextCE(coll, &s, status);*/
|
|
UCOL_GETNEXTCE(order, coll, s, status);
|
|
|
|
if(isCEIgnorable(order)) {
|
|
continue;
|
|
}
|
|
|
|
if(order == UCOL_NO_MORE_CES) {
|
|
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;
|
|
notIsContinuation = !isContinuation(ce);
|
|
|
|
|
|
order ^= caseSwitch;
|
|
caseBit = (order & UCOL_CASE_BIT_MASK);
|
|
tertiary = (uint8_t)((order & tertiaryMask));
|
|
secondary = (uint8_t)((order >>= 8) & UCOL_BYTE_SIZE_MASK);
|
|
primary2 = (uint8_t)((order >>= 8) & UCOL_BYTE_SIZE_MASK);
|
|
primary1 = (uint8_t)(order >>= 8);
|
|
|
|
if(notIsContinuation) {
|
|
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 && ((notIsContinuation && primary1 <= variableMax1 && primary1 > 0
|
|
&& (primary1 < variableMax1 || primary1 == variableMax1 && primary2 < variableMax2))
|
|
|| (!notIsContinuation && wasShifted))) {
|
|
if(count4 > 0) {
|
|
while (count4 >= UCOL_BOT_COUNT4) {
|
|
*quads++ = (uint8_t)(UCOL_COMMON_BOT4 + UCOL_BOT_COUNT4);
|
|
count4 -= UCOL_BOT_COUNT4;
|
|
}
|
|
*quads++ = (uint8_t)(UCOL_COMMON_BOT4 + count4);
|
|
count4 = 0;
|
|
}
|
|
/* We are dealing with a variable and we're treating them as shifted */
|
|
/* This is a shifted ignorable */
|
|
if(primary1 != 0) {
|
|
*quads++ = primary1;
|
|
}
|
|
if(primary2 != 0) {
|
|
*quads++ = primary2;
|
|
}
|
|
wasShifted = TRUE;
|
|
} else {
|
|
wasShifted = FALSE;
|
|
/* 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_IGNORABLE) {
|
|
*primaries++ = primary1; /* scriptOrder[primary1]; */ /* This is the script ordering thingie */
|
|
if(primary2 != UCOL_IGNORABLE) {
|
|
*primaries++ = primary2; /* second part */
|
|
}
|
|
}
|
|
|
|
if(secondary > compareSec) {
|
|
if(!isFrenchSec) {
|
|
/* This is compression code. */
|
|
if (secondary == UCOL_COMMON2 && notIsContinuation) {
|
|
++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;
|
|
count2 -= UCOL_TOP_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_TOP2 - count2);
|
|
} else {
|
|
while (count2 >= UCOL_BOT_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_BOT2 + UCOL_BOT_COUNT2;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_BOT2 + count2);
|
|
}
|
|
count2 = 0;
|
|
}
|
|
*secondaries++ = secondary;
|
|
}
|
|
} else {
|
|
*secondaries++ = secondary;
|
|
/* 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(!notIsContinuation) {
|
|
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(doCase) {
|
|
if (caseShift == 0) {
|
|
*cases++ = UCOL_CASE_BYTE_START;
|
|
caseShift = UCOL_CASE_SHIFT_START;
|
|
}
|
|
if(tertiary != 0) {
|
|
*(cases-1) |= (caseBit!=0) << (caseShift--);
|
|
} else {
|
|
caseShift--;
|
|
}
|
|
}
|
|
|
|
if(tertiary > compareTer) {
|
|
/* This is compression code. */
|
|
/* sequence size check is included in the if clause */
|
|
if (tertiary == UCOL_COMMON3 && notIsContinuation) {
|
|
++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;
|
|
count3 -= UCOL_TOP_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_TOP3 - count3);
|
|
} else {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_BOT3 + count3);
|
|
}
|
|
count3 = 0;
|
|
}
|
|
*tertiaries++ = tertiary;
|
|
}
|
|
}
|
|
|
|
if(shifted && notIsContinuation) {
|
|
count4++;
|
|
}
|
|
}
|
|
|
|
if(primaries > primarySafeEnd) { /* We have stepped over the primary buffer */
|
|
int32_t sks = sortKeySize+(primaries - primStart)+(secondaries - secStart)+(tertiaries - terStart)+(cases-caseStart)+(quads-quadStart);
|
|
if(allocatePrimary == FALSE) { /* need to save our butts if we cannot reallocate */
|
|
resultOverflow = TRUE;
|
|
sortKeySize = ucol_getSortKeySize(coll, &s, sks, strength, len);
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
finished = TRUE;
|
|
break;
|
|
} else { /* It's much nicer if we can actually reallocate */
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sks, status);
|
|
*result = primStart;
|
|
primarySafeEnd = primStart + resultLength - 2;
|
|
}
|
|
}
|
|
}
|
|
if(finished) {
|
|
break;
|
|
} else {
|
|
prevBuffSize = minBufferSize;
|
|
secStart = reallocateBuffer(&secondaries, secStart, second, &secSize, 2*secSize, status);
|
|
terStart = reallocateBuffer(&tertiaries, terStart, tert, &terSize, 2*terSize, status);
|
|
caseStart = reallocateBuffer(&cases, caseStart, caseB, &caseSize, 2*caseSize, status);
|
|
quadStart = reallocateBuffer(&quads, quadStart, quad, &quadSize, 2*quadSize, status);
|
|
minBufferSize *= 2;
|
|
}
|
|
}
|
|
|
|
/* Here, we are generally done with processing */
|
|
/* bailing out would not be too productive */
|
|
|
|
|
|
if(U_SUCCESS(*status)) {
|
|
sortKeySize += (primaries - primStart);
|
|
/* 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;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_BOT2 + count2);
|
|
}
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t secsize = secondaries-secStart;
|
|
sortKeySize += secsize;
|
|
if(sortKeySize <= resultLength) {
|
|
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 = 0; i<secsize; i++) {
|
|
*(primaries++) = *(secondaries-i-1);
|
|
}
|
|
} else {
|
|
uprv_memcpy(primaries, secStart, secsize);
|
|
primaries += secsize;
|
|
}
|
|
} else {
|
|
if(allocatePrimary == TRUE) { /* need to save our butts if we cannot reallocate */
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
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 = 0; i<secsize; i++) {
|
|
*(primaries++) = *(secondaries-i-1);
|
|
}
|
|
} else {
|
|
uprv_memcpy(primaries, secStart, secsize);
|
|
primaries += secsize;
|
|
}
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(doCase) {
|
|
uint32_t casesize = cases - caseStart;
|
|
sortKeySize += casesize;
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
if(sortKeySize <= resultLength) {
|
|
uprv_memcpy(primaries, caseStart, casesize);
|
|
primaries += casesize;
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
uprv_memcpy(primaries, caseStart, casesize);
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(compareTer == 0) {
|
|
if (count3 > 0) {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_BOT3 + count3);
|
|
}
|
|
uint32_t tersize = tertiaries - terStart;
|
|
sortKeySize += tersize;
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
if(sortKeySize <= resultLength) {
|
|
uprv_memcpy(primaries, terStart, tersize);
|
|
primaries += tersize;
|
|
if(compareQuad == 0) {
|
|
if(count4 > 0) {
|
|
while (count4 >= UCOL_BOT_COUNT4) {
|
|
*quads++ = (uint8_t)(UCOL_COMMON_BOT4 + UCOL_BOT_COUNT4);
|
|
count4 -= UCOL_BOT_COUNT4;
|
|
}
|
|
*quads++ = (uint8_t)(UCOL_COMMON_BOT4 + count4);
|
|
}
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t quadsize = quads - quadStart;
|
|
sortKeySize += quadsize;
|
|
if(sortKeySize <= resultLength) {
|
|
uprv_memcpy(primaries, quadStart, quadsize);
|
|
primaries += quadsize;
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
uprv_memcpy(primaries, quadStart, quadsize);
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
uprv_memcpy(primaries, terStart, tersize);
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
|
|
if(compareIdent) {
|
|
UChar *ident = s.string;
|
|
uint8_t idByte = 0;
|
|
sortKeySize += len * sizeof(UChar);
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
if(sortKeySize <= resultLength) {
|
|
while(ident < s.len) {
|
|
idByte = (uint8_t)((*(ident) >> 8) + utf16fixup[*(ident) >> 11]);
|
|
if(idByte < 0x02) {
|
|
if(sortKeySize < resultLength) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = (uint8_t)(idByte + 1);
|
|
}
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
idByte = (uint8_t)((*(ident) & UCOL_BYTE_SIZE_MASK));
|
|
if(idByte < 0x02) {
|
|
if(sortKeySize < resultLength) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = (uint8_t)(idByte + 1);
|
|
}
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
|
|
ident++;
|
|
}
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
while(ident < s.len) {
|
|
idByte = (uint8_t)((*(ident) >> 8) + utf16fixup[*(ident) >> 11]);
|
|
if(idByte < 0x02) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = (uint8_t)(idByte + 1);
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
idByte = (uint8_t)((*(ident) & UCOL_BYTE_SIZE_MASK));
|
|
if(idByte < 0x02) {
|
|
*(primaries++) = 0x01;
|
|
sortKeySize++;
|
|
*(primaries++) = (uint8_t)(idByte + 1);
|
|
} else {
|
|
*(primaries++) = idByte;
|
|
}
|
|
ident++;
|
|
}
|
|
} else {
|
|
while(ident < s.len) {
|
|
idByte = (uint8_t)((*(ident) >> 8) + utf16fixup[*(ident) >> 11]);
|
|
if(idByte < 0x02) {
|
|
sortKeySize++;
|
|
}
|
|
idByte = (uint8_t)((*(ident) & UCOL_BYTE_SIZE_MASK));
|
|
if(idByte < 0x02) {
|
|
sortKeySize++;
|
|
}
|
|
ident++;
|
|
}
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*(primaries++) = '\0';
|
|
}
|
|
|
|
if(terStart != tert) {
|
|
uprv_free(terStart);
|
|
uprv_free(secStart);
|
|
uprv_free(caseStart);
|
|
uprv_free(quadStart);
|
|
}
|
|
|
|
if(normSource != normBuffer) {
|
|
uprv_free(normSource);
|
|
}
|
|
|
|
if(allocatePrimary == TRUE) {
|
|
*result = (uint8_t*)uprv_malloc(sortKeySize);
|
|
uprv_memcpy(*result, primStart, sortKeySize);
|
|
if(primStart != prim) {
|
|
uprv_free(primStart);
|
|
}
|
|
}
|
|
|
|
return sortKeySize;
|
|
}
|
|
|
|
int32_t
|
|
ucol_calcSortKeySimpleTertiary(const UCollator *coll,
|
|
const UChar *source,
|
|
int32_t sourceLength,
|
|
uint8_t **result,
|
|
uint32_t resultLength,
|
|
UBool allocatePrimary,
|
|
UErrorCode *status)
|
|
{
|
|
uint32_t i = 0; /* general purpose counter */
|
|
|
|
/* Stack allocated buffers for buffers we use */
|
|
uint8_t prim[UCOL_PRIMARY_MAX_BUFFER], second[UCOL_SECONDARY_MAX_BUFFER], tert[UCOL_TERTIARY_MAX_BUFFER];
|
|
|
|
uint8_t *primaries = *result, *secondaries = second, *tertiaries = tert;
|
|
|
|
if(U_FAILURE(*status)) {
|
|
return 0;
|
|
}
|
|
|
|
if(primaries == NULL && allocatePrimary == TRUE) {
|
|
primaries = *result = prim;
|
|
resultLength = UCOL_PRIMARY_MAX_BUFFER;
|
|
}
|
|
uint8_t *primarySafeEnd = primaries + resultLength - 2;
|
|
|
|
uint32_t secSize = UCOL_SECONDARY_MAX_BUFFER, terSize = UCOL_TERTIARY_MAX_BUFFER;
|
|
|
|
int32_t sortKeySize = 3; /* it is always \0 terminated plus separators for secondary and tertiary */
|
|
|
|
UChar normBuffer[UCOL_NORMALIZATION_MAX_BUFFER];
|
|
UChar *normSource = normBuffer;
|
|
int32_t normSourceLen = UCOL_NORMALIZATION_MAX_BUFFER;
|
|
|
|
int32_t len = (sourceLength == -1 ? u_strlen(source) : sourceLength);
|
|
|
|
|
|
collIterate s;
|
|
init_collIterate(coll, (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)
|
|
/* && (unorm_quickCheck(source, len, UNORM_NFD, status) != UNORM_YES)
|
|
&& (unorm_quickCheck(source, len, UNORM_NFC, status) != UNORM_YES)) */
|
|
/* changed by synwee */
|
|
&& !checkFCD(source, len, status))
|
|
{
|
|
|
|
normSourceLen = unorm_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 = unorm_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, coll->strength, len);
|
|
}
|
|
|
|
uint32_t minBufferSize = UCOL_MAX_BUFFER;
|
|
|
|
uint8_t *primStart = primaries;
|
|
uint8_t *secStart = secondaries;
|
|
uint8_t *terStart = tertiaries;
|
|
|
|
uint32_t order = 0;
|
|
uint32_t ce = 0;
|
|
|
|
uint8_t primary1 = 0;
|
|
uint8_t primary2 = 0;
|
|
uint8_t secondary = 0;
|
|
uint8_t tertiary = 0;
|
|
uint8_t caseSwitch = coll->caseSwitch;
|
|
uint8_t tertiaryMask = coll->tertiaryMask;
|
|
|
|
|
|
uint32_t prevBuffSize = 0;
|
|
|
|
UBool finished = FALSE;
|
|
UBool resultOverflow = FALSE;
|
|
UBool notIsContinuation = FALSE;
|
|
|
|
uint32_t count2 = 0, count3 = 0;
|
|
|
|
for(;;) {
|
|
for(i=prevBuffSize; i<minBufferSize; ++i) {
|
|
|
|
/*order = ucol_getNextCE(coll, &s, status);*/
|
|
UCOL_GETNEXTCE(order, coll, s, status);
|
|
|
|
if(isCEIgnorable(order)) {
|
|
continue;
|
|
}
|
|
|
|
if(order == UCOL_NO_MORE_CES) {
|
|
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;
|
|
notIsContinuation = !isContinuation(ce);
|
|
|
|
order ^= caseSwitch;
|
|
tertiary = (uint8_t)((order & tertiaryMask)); /* TODO need case bit here this is temporary - removing case bit */
|
|
secondary = (uint8_t)((order >>= 8) & UCOL_BYTE_SIZE_MASK);
|
|
primary2 = (uint8_t)((order >>= 8) & UCOL_BYTE_SIZE_MASK);
|
|
primary1 = (uint8_t)(order >>= 8);
|
|
|
|
/* 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. */
|
|
|
|
/* 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_IGNORABLE) {
|
|
*primaries++ = primary1; /* scriptOrder[primary1]; */ /* This is the script ordering thingie */
|
|
if(primary2 != UCOL_IGNORABLE) {
|
|
*primaries++ = primary2; /* second part */
|
|
}
|
|
}
|
|
|
|
if(secondary > 0) { /* I think that != 0 test should be != IGNORABLE */
|
|
/* This is compression code. */
|
|
if (secondary == UCOL_COMMON2 && notIsContinuation) {
|
|
++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;
|
|
count2 -= UCOL_TOP_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_TOP2 - count2);
|
|
} else {
|
|
while (count2 >= UCOL_BOT_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_BOT2 + UCOL_BOT_COUNT2;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_BOT2 + count2);
|
|
}
|
|
count2 = 0;
|
|
}
|
|
*secondaries++ = secondary;
|
|
}
|
|
}
|
|
|
|
|
|
if(tertiary > 0) {
|
|
/* This is compression code. */
|
|
/* sequence size check is included in the if clause */
|
|
if (tertiary == UCOL_COMMON3 && notIsContinuation) {
|
|
++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;
|
|
count3 -= UCOL_TOP_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_TOP3 - count3);
|
|
} else {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_BOT3 + count3);
|
|
}
|
|
count3 = 0;
|
|
}
|
|
*tertiaries++ = tertiary;
|
|
}
|
|
}
|
|
|
|
if(primaries > primarySafeEnd) { /* We have stepped over the primary buffer */
|
|
int32_t sks = sortKeySize+(primaries - primStart)+(secondaries - secStart)+(tertiaries - terStart);
|
|
if(allocatePrimary == FALSE) { /* need to save our butts if we cannot reallocate */
|
|
resultOverflow = TRUE;
|
|
sortKeySize = ucol_getSortKeySize(coll, &s, sks, coll->strength, len);
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
finished = TRUE;
|
|
break;
|
|
} else { /* It's much nicer if we can actually reallocate */
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sks, status);
|
|
*result = primStart;
|
|
primarySafeEnd = primStart + resultLength - 2;
|
|
}
|
|
}
|
|
}
|
|
if(finished) {
|
|
break;
|
|
} else {
|
|
prevBuffSize = minBufferSize;
|
|
secStart = reallocateBuffer(&secondaries, secStart, second, &secSize, 2*secSize, status);
|
|
terStart = reallocateBuffer(&tertiaries, terStart, tert, &terSize, 2*terSize, status);
|
|
minBufferSize *= 2;
|
|
}
|
|
}
|
|
|
|
if(U_SUCCESS(*status)) {
|
|
sortKeySize += (primaries - primStart);
|
|
/* we have done all the CE's, now let's put them together to form a key */
|
|
if (count2 > 0) {
|
|
while (count2 >= UCOL_BOT_COUNT2) {
|
|
*secondaries++ = UCOL_COMMON_BOT2 + UCOL_BOT_COUNT2;
|
|
count2 -= UCOL_BOT_COUNT2;
|
|
}
|
|
*secondaries++ = (uint8_t)(UCOL_COMMON_BOT2 + count2);
|
|
}
|
|
uint32_t secsize = secondaries-secStart;
|
|
sortKeySize += secsize;
|
|
if(sortKeySize <= resultLength) {
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uprv_memcpy(primaries, secStart, secsize);
|
|
primaries += secsize;
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
uprv_memcpy(primaries, secStart, secsize);
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
|
|
if (count3 > 0) {
|
|
while (count3 >= UCOL_BOT_COUNT3) {
|
|
*tertiaries++ = UCOL_COMMON_BOT3 + UCOL_BOT_COUNT3;
|
|
count3 -= UCOL_BOT_COUNT3;
|
|
}
|
|
*tertiaries++ = (uint8_t)(UCOL_COMMON_BOT3 + count3);
|
|
}
|
|
*(primaries++) = UCOL_LEVELTERMINATOR;
|
|
uint32_t tersize = tertiaries - terStart;
|
|
sortKeySize += tersize;
|
|
if(sortKeySize <= resultLength) {
|
|
uprv_memcpy(primaries, terStart, tersize);
|
|
primaries += tersize;
|
|
} else {
|
|
if(allocatePrimary == TRUE) {
|
|
primStart = reallocateBuffer(&primaries, *result, prim, &resultLength, 2*sortKeySize, status);
|
|
*result = primStart;
|
|
uprv_memcpy(primaries, terStart, tersize);
|
|
} else {
|
|
*status = U_MEMORY_ALLOCATION_ERROR;
|
|
}
|
|
}
|
|
|
|
*(primaries++) = '\0';
|
|
}
|
|
|
|
if(terStart != tert) {
|
|
uprv_free(terStart);
|
|
uprv_free(secStart);
|
|
}
|
|
|
|
if(normSource != normBuffer) {
|
|
uprv_free(normSource);
|
|
}
|
|
|
|
if(allocatePrimary == TRUE) {
|
|
*result = (uint8_t*)uprv_malloc(sortKeySize);
|
|
uprv_memcpy(*result, primStart, sortKeySize);
|
|
if(primStart != prim) {
|
|
uprv_free(primStart);
|
|
}
|
|
}
|
|
|
|
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 */
|
|
/****************************************************************************/
|
|
void ucol_updateInternalState(UCollator *coll) {
|
|
if(coll->caseFirst == UCOL_UPPER_FIRST) {
|
|
coll->caseSwitch = UCOL_CASE_SWITCH;
|
|
} else {
|
|
coll->caseSwitch = UCOL_NO_CASE_SWITCH;
|
|
}
|
|
if(coll->caseLevel == UCOL_ON || coll->caseFirst == UCOL_OFF) {
|
|
coll->tertiaryMask = UCOL_REMOVE_CASE;
|
|
} else {
|
|
coll->tertiaryMask = UCOL_KEEP_CASE;
|
|
}
|
|
if(coll->caseLevel == UCOL_OFF && coll->strength == UCOL_TERTIARY
|
|
&& coll->frenchCollation == UCOL_OFF) {
|
|
coll->sortKeyGen = ucol_calcSortKeySimpleTertiary;
|
|
} else {
|
|
coll->sortKeyGen = ucol_calcSortKey;
|
|
}
|
|
|
|
}
|
|
|
|
/* 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_OFF) {
|
|
coll->caseFirst = UCOL_OFF;
|
|
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;
|
|
}
|
|
ucol_updateInternalState(coll);
|
|
}
|
|
|
|
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, int32_t * pBufferSize, UErrorCode *status)
|
|
{
|
|
UCollator * localCollator;
|
|
int32_t bufferSizeNeeded = sizeof(UCollator);
|
|
|
|
if (status == NULL || U_FAILURE(*status)){
|
|
return 0;
|
|
}
|
|
if (!pBufferSize || !coll){
|
|
*status = U_ILLEGAL_ARGUMENT_ERROR;
|
|
return 0;
|
|
}
|
|
if (*pBufferSize == 0){ /* 'preflighting' request - set needed size into *pBufferSize */
|
|
*pBufferSize = bufferSizeNeeded;
|
|
return 0;
|
|
}
|
|
if (*pBufferSize < bufferSizeNeeded || stackBuffer == NULL) {
|
|
/* allocate one here...*/
|
|
int32_t length;
|
|
const UChar * rules = ucol_getRules(coll, &length);
|
|
|
|
localCollator = ucol_openRules(rules,
|
|
length,
|
|
ucol_getNormalization(coll),
|
|
ucol_getStrength(coll),
|
|
status);
|
|
if (U_SUCCESS(*status))
|
|
{
|
|
*status = U_SAFECLONE_ALLOCATED_ERROR;
|
|
}
|
|
} else {
|
|
localCollator = (UCollator *)stackBuffer;
|
|
memcpy(localCollator, coll, sizeof(UCollator));
|
|
localCollator->freeOnClose = FALSE;
|
|
}
|
|
return localCollator;
|
|
}
|
|
|
|
U_CAPI int32_t
|
|
ucol_getRulesEx(const UCollator *coll, UColRuleOption delta, UChar *buffer, int32_t bufferLen) {
|
|
int32_t len = 0;
|
|
int32_t UCAlen = 0;
|
|
const UChar* ucaRules;
|
|
const UChar *rules = ucol_getRules(coll, &len);
|
|
if(delta == UCOL_FULL_RULES) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
/* take the UCA rules and append real rules at the end */
|
|
/* UCA rules will be probably coming from the root RB */
|
|
ucaRules = ures_getStringByKey(coll->rb,"%%UCARULES",&UCAlen,&status);
|
|
}
|
|
if(buffer){
|
|
*buffer=0;
|
|
if(bufferLen >= len + UCAlen) {
|
|
u_strcat(buffer, rules);
|
|
if(UCAlen >0)
|
|
u_strcat(buffer,ucaRules);
|
|
} else {
|
|
u_strncat(buffer, rules, (bufferLen-UCAlen)*sizeof(UChar));
|
|
}
|
|
}
|
|
return len+UCAlen;
|
|
}
|
|
|
|
U_CAPI const UChar*
|
|
ucol_getRules( const UCollator *coll,
|
|
int32_t *length)
|
|
{
|
|
if(coll->rules != NULL) {
|
|
*length = u_strlen(coll->rules);
|
|
return coll->rules;
|
|
} else {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
if(coll->rb != NULL) {
|
|
UResourceBundle *collElem = ures_getByKey(coll->rb, "CollationElements", NULL, &status);
|
|
if(U_SUCCESS(status)) {
|
|
/*Semantic const */
|
|
((UCollator *)coll)->rules = ures_getStringByKey(collElem, "Sequence", length, &status);
|
|
((UCollator *)coll)->freeRulesOnClose = FALSE;
|
|
ures_close(collElem);
|
|
return coll->rules;
|
|
}
|
|
}
|
|
*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;
|
|
}
|
|
|
|
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)
|
|
{
|
|
/* RunTime version */
|
|
uint8_t rtVersion = UCOL_RUNTIME_VERSION;
|
|
/* Builder version*/
|
|
uint8_t bdVersion = coll->dataInfo.dataVersion[0];
|
|
|
|
/* Charset Version. Need to get the version from cnv files
|
|
* makeconv should populate cnv files with version and
|
|
* an api has to be provided in ucnv.h to obtain this version
|
|
*/
|
|
uint8_t csVersion = 0;
|
|
|
|
/* combine the version info */
|
|
uint16_t cmbVersion = (uint16_t)((rtVersion<<11) | (bdVersion<<6) | (csVersion));
|
|
|
|
/* Tailoring rules */
|
|
versionInfo[0] = (uint8_t)(cmbVersion>>8);
|
|
versionInfo[1] = (uint8_t)cmbVersion;
|
|
versionInfo[2] = coll->dataInfo.dataVersion[1];
|
|
versionInfo[3] = UCA->dataInfo.dataVersion[1];
|
|
}
|
|
|
|
|
|
static UBool ucol_unsafeCP(UChar c, const UCollator *coll) {
|
|
int32_t hash = c;
|
|
uint8_t htbyte;
|
|
|
|
if (hash >= UCOL_UNSAFECP_TABLE_SIZE*8) {
|
|
if (hash >= 0xd800 && hash <= 0xf8ff) {
|
|
/* Part of a surrogate, or in private use area. */
|
|
/* These are always considered unsafe. */
|
|
return TRUE;
|
|
}
|
|
hash = (hash & UCOL_UNSAFECP_TABLE_MASK) + 256;
|
|
}
|
|
htbyte = coll->unsafeCP[hash>>3];
|
|
if (((htbyte >> (hash & 7)) & 1) == 1)
|
|
return TRUE;
|
|
|
|
/* TODO: main UCA table data needs to be merged into tailoring tables, */
|
|
/* and this second level of test removed from here. */
|
|
if (coll == UCA)
|
|
return FALSE;
|
|
|
|
htbyte = UCA->unsafeCP[hash>>3];
|
|
return ((htbyte >> (hash & 7)) & 1) == 1;
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/* Following are the string compare functions */
|
|
/* */
|
|
/****************************************************************************/
|
|
|
|
/* 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==target && sourceLength==targetLength)
|
|
{
|
|
return UCOL_EQUAL;
|
|
}
|
|
|
|
/*
|
|
sourceLength = sourceLength == -1 ? u_strlen(source) : sourceLength;
|
|
targetLength = targetLength == -1 ? u_strlen(target) : targetLength;
|
|
|
|
if(sourceLength == targetLength && uprv_memcmp(source, target, sizeof(UChar)*sourceLength) == 0) {
|
|
return UCOL_EQUAL;
|
|
}
|
|
*/
|
|
|
|
/* Scan the strings. Find:
|
|
/* their length, if not given by caller */
|
|
/* The length of any leading portion that is equal */
|
|
/* Whether they are exactly equal. (in which case we just return */
|
|
const UChar *pSrc = source;
|
|
const UChar *pTarg = target;
|
|
|
|
const UChar *pSrcEnd = source + sourceLength;
|
|
const UChar *pTargEnd = target + targetLength;
|
|
|
|
int32_t equalLength = 0;
|
|
|
|
// Scan while the strings are bitwise ==, or until one is exhausted.
|
|
for (;;) {
|
|
if (pSrc == pSrcEnd || pTarg == pTargEnd)
|
|
break;
|
|
if (*pSrc != *pTarg)
|
|
break;
|
|
if (*pSrc == 0 && (sourceLength == -1 || targetLength == -1))
|
|
break;
|
|
equalLength++;
|
|
pSrc++;
|
|
pTarg++;
|
|
}
|
|
|
|
// If we made it all the way through both strings, we are done. They are ==
|
|
if ((pSrc ==pSrcEnd || (pSrcEnd <pSrc && *pSrc==0)) && /* At end of src string, however it was specified. */
|
|
(pTarg==pTargEnd || (pTargEnd<pTarg && *pTarg==0))) /* and also at end of dest string */
|
|
return UCOL_EQUAL;
|
|
|
|
// If we don't know the length of the src string, continue scanning it to get the length..
|
|
if (sourceLength == -1) {
|
|
while (*pSrc != 0 ) {
|
|
pSrc++;
|
|
}
|
|
sourceLength = pSrc - source;
|
|
}
|
|
|
|
// If we don't know the length of the targ string, continue scanning it to get the length..
|
|
if (targetLength == -1) {
|
|
while (*pTarg != 0 ) {
|
|
pTarg++;
|
|
}
|
|
targetLength = pTarg - target;
|
|
}
|
|
|
|
|
|
if (equalLength > 2) {
|
|
/* There is an identical portion at the beginning of the two strings. */
|
|
/* If the identical portion ends within a contraction or a comibining */
|
|
/* character sequence, back up to the start of that sequence. */
|
|
pSrc = source + equalLength; /* point to the first differing chars */
|
|
pTarg = target + equalLength;
|
|
if (pSrc != source+sourceLength && ucol_unsafeCP(*pSrc, coll) ||
|
|
pTarg != target+targetLength && ucol_unsafeCP(*pTarg, coll))
|
|
{
|
|
// We are stopped in the middle of a contraction.
|
|
// Scan backwards through the == part of the string looking for the start of the contraction.
|
|
// It doesn't matter which string we scan, since they are the same in this region.
|
|
do
|
|
{
|
|
equalLength--;
|
|
pSrc--;
|
|
}
|
|
while (equalLength>0 && ucol_unsafeCP(*pSrc, coll));
|
|
}
|
|
|
|
source += equalLength;
|
|
target += equalLength;
|
|
sourceLength -= equalLength;
|
|
targetLength -= equalLength;
|
|
}
|
|
|
|
|
|
|
|
UColAttributeValue strength = coll->strength;
|
|
UBool initialCheckSecTer = (strength >= UCOL_SECONDARY);
|
|
|
|
UBool checkSecTer = initialCheckSecTer;
|
|
UBool checkTertiary = (strength >= UCOL_TERTIARY);
|
|
UBool checkQuad = (strength >= UCOL_QUATERNARY);
|
|
UBool checkIdent = (strength == UCOL_IDENTICAL);
|
|
UBool checkCase = (coll->caseLevel == UCOL_ON);
|
|
UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && checkSecTer;
|
|
UBool upperFirst = (coll->caseFirst == UCOL_UPPER_FIRST) && checkTertiary;
|
|
UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && checkQuad;
|
|
|
|
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;
|
|
|
|
|
|
init_collIterate(coll, source, sourceLength, &sColl, FALSE);
|
|
if(checkIdent) {
|
|
if(unorm_quickCheck(sColl.string, sColl.len - sColl.string, UNORM_NFD, &status) != UNORM_YES) {
|
|
normSourceLength = unorm_normalize(source, sourceLength, UNORM_NFD, 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 = unorm_normalize(source, sourceLength, UNORM_NFD, 0, normSourceP, normSourceLength+1, &status);
|
|
normTargetLength = unorm_normalize(target, targetLength, UNORM_NFD, 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 = unorm_normalize(target, targetLength, UNORM_NFD, 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;
|
|
}
|
|
init_collIterate(coll, normSource, normSourceLength, &sColl, TRUE);
|
|
}
|
|
} else if((coll->normalizationMode == UCOL_ON)
|
|
/* && (unorm_quickCheck( sColl.string, sColl.len - sColl.string, UNORM_NFD, &status) != UNORM_YES)
|
|
&& (unorm_quickCheck( sColl.string, sColl.len - sColl.string, UNORM_NFC, &status) != UNORM_YES)) */
|
|
/* changed by synwee */
|
|
&& !checkFCD(sColl.string, sColl.len - sColl.string, &status))
|
|
{
|
|
normSourceLength = unorm_normalize(source, sourceLength, UNORM_NFD, 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 = unorm_normalize(source, sourceLength, UNORM_NFD, 0, normSourceP, normSourceLength+1, &status);
|
|
normTargetLength = unorm_normalize(target, targetLength, UNORM_NFD, 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 = unorm_normalize(target, targetLength, UNORM_NFD, 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;
|
|
}
|
|
init_collIterate(coll, normSource, normSourceLength, &sColl, TRUE);
|
|
}
|
|
|
|
init_collIterate(coll, target, targetLength, &tColl, FALSE);
|
|
if(checkIdent) {
|
|
if(unorm_quickCheck(tColl.string, tColl.len - tColl.string, UNORM_NFD, &status) != UNORM_YES) {
|
|
normTargetLength = unorm_normalize(target, targetLength, UNORM_NFD, 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 = unorm_normalize(target, targetLength, UNORM_NFD, 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(coll, normTarget, normTargetLength, &tColl, TRUE);
|
|
}
|
|
} else if((coll->normalizationMode == UCOL_ON)
|
|
/* && (unorm_quickCheck(tColl.string, tColl.len - tColl.string, UNORM_NFD, &status) != UNORM_YES)
|
|
&& (unorm_quickCheck(tColl.string, tColl.len - tColl.string, UNORM_NFC, &status) != UNORM_YES)) */
|
|
/* changed by synwee */
|
|
&& !checkFCD(tColl.string, tColl.len - tColl.string, &status))
|
|
{
|
|
normTargetLength = unorm_normalize(target, targetLength, UNORM_NFD, 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 = unorm_normalize(target, targetLength, UNORM_NFD, 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(coll, normTarget, normTargetLength, &tColl, TRUE);
|
|
}
|
|
|
|
if (U_FAILURE(status))
|
|
{
|
|
return UCOL_EQUAL;
|
|
}
|
|
|
|
uint32_t sCEsArray[512], tCEsArray[512];
|
|
uint32_t *sCEs = sCEsArray, *tCEs = tCEsArray;
|
|
uint32_t *sCEend = sCEs+512, *tCEend = tCEs+512;
|
|
uint8_t caseSwitch = coll->caseSwitch;
|
|
uint8_t tertiaryMask = coll->tertiaryMask;
|
|
|
|
uint32_t LVT = shifted*((coll->variableMax1)<<24 | (coll->variableMax2)<<16);
|
|
|
|
uint32_t secS = 0, secT = 0;
|
|
|
|
uint32_t sOrder=0, tOrder=0;
|
|
if(!shifted) {
|
|
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. */
|
|
while(sOrder == 0) {
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
sOrder &= 0xFFFF0000;
|
|
}
|
|
|
|
while(tOrder == 0) {
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
tOrder &= 0xFFFF0000;
|
|
}
|
|
|
|
if(sOrder == tOrder) {
|
|
if(sOrder == 0x00010000) {
|
|
|
|
break;
|
|
} else {
|
|
sOrder = 0; tOrder = 0;
|
|
continue;
|
|
}
|
|
} else if(sOrder < tOrder) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
} /* no primary difference... do the rest from the buffers */
|
|
} else { /* shifted - do a slightly more complicated processing */
|
|
for(;;) {
|
|
UBool sInShifted = FALSE;
|
|
UBool tInShifted = FALSE;
|
|
|
|
if(sCEs == sCEend || tCEs == tCEend) {
|
|
return ucol_compareUsingSortKeys(coll, source, sourceLength, target, targetLength);
|
|
}
|
|
|
|
/* This is where abridged version for shifted should go */
|
|
for(;;) {
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
if(sOrder == UCOL_NO_MORE_CES) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else if((sOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(sOrder)) {
|
|
if((sOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(sInShifted) {
|
|
sOrder &= 0xFFFF0000;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(sInShifted) {
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(sOrder > LVT) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else {
|
|
if((sOrder & 0xFFFF0000) > 0) {
|
|
sInShifted = TRUE;
|
|
sOrder &= 0xFFFF0000;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
sOrder &= 0xFFFF0000;
|
|
sInShifted = FALSE;
|
|
|
|
for(;;) {
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);
|
|
if(tOrder == UCOL_NO_MORE_CES) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else if((tOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(tOrder)) {
|
|
if((tOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(tInShifted) {
|
|
tOrder &= 0xFFFF0000;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(tInShifted) {
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(tOrder > LVT) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else {
|
|
if((tOrder & 0xFFFF0000) > 0) {
|
|
tInShifted = TRUE;
|
|
tOrder &= 0xFFFF0000;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
tOrder &= 0xFFFF0000;
|
|
tInShifted = FALSE;
|
|
|
|
if(sOrder == tOrder) {
|
|
if(sOrder == 0x00010000) {
|
|
break;
|
|
} else {
|
|
sOrder = 0; tOrder = 0;
|
|
continue;
|
|
}
|
|
} else if(sOrder < tOrder) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
} /* no primary difference... do the rest from the buffers */
|
|
}
|
|
|
|
/* now, we're gonna reexamine collected CEs */
|
|
sCEend = sCEs;
|
|
tCEend = tCEs;
|
|
|
|
/* This is the secondary level of comparison */
|
|
if(checkSecTer) {
|
|
if(!isFrenchSec) { /* normal */
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while (secS == 0) {
|
|
secS = *(sCEs++) & 0xFF00;
|
|
}
|
|
|
|
while(secT == 0) {
|
|
secT = *(tCEs++) & 0xFF00;
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x0100) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
} else { /* do the French */
|
|
uint32_t *sCESave = NULL;
|
|
uint32_t *tCESave = NULL;
|
|
sCEs = sCEend-2; /* this could also be sCEs-- if needs to be optimized */
|
|
tCEs = tCEend-2;
|
|
for(;;) {
|
|
while (secS == 0 && sCEs >= sCEsArray) {
|
|
if(sCESave == 0) {
|
|
secS = *(sCEs--) & 0xFF80;
|
|
if(isContinuation(secS)) {
|
|
while(isContinuation(secS = *(sCEs--) & 0xFF80));
|
|
/* after this, secS has the start of continuation, and sCEs points before that */
|
|
sCESave = sCEs; /* we save it, so that we know where to come back AND that we need to go forward */
|
|
sCEs+=2; /* need to point to the first continuation CP */
|
|
/* However, now you can just continue doing stuff */
|
|
}
|
|
} else {
|
|
secS = *(sCEs++) & 0xFF80;
|
|
if(!isContinuation(secS)) { /* This means we have finished with this cont */
|
|
sCEs = sCESave; /* reset the pointer to before continuation */
|
|
sCESave = 0;
|
|
continue;
|
|
}
|
|
}
|
|
secS &= 0xFF00; /* remove the continuation bit */
|
|
}
|
|
|
|
while(secT == 0 && tCEs >= tCEsArray) {
|
|
if(tCESave == 0) {
|
|
secT = *(tCEs--) & 0xFF80;
|
|
if(isContinuation(secT)) {
|
|
while(isContinuation(secT = *(tCEs--) & 0xFF80));
|
|
/* after this, secS has the start of continuation, and sCEs points before that */
|
|
tCESave = tCEs; /* we save it, so that we know where to come back AND that we need to go forward */
|
|
tCEs+=2; /* need to point to the first continuation CP */
|
|
/* However, now you can just continue doing stuff */
|
|
}
|
|
} else {
|
|
secT = *(tCEs++) & 0xFF80;
|
|
if(!isContinuation(secT)) { /* This means we have finished with this cont */
|
|
tCEs = tCESave; /* reset the pointer to before continuation */
|
|
tCESave = 0;
|
|
continue;
|
|
}
|
|
}
|
|
secT &= 0xFF00; /* remove the continuation bit */
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x0100 || (sCEs < sCEsArray && tCEs < tCEsArray)) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* doing the case bit */
|
|
if(checkCase) {
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while((secS & UCOL_REMOVE_CASE) == 0) {
|
|
secS = *(sCEs++) & UCOL_TERT_CASE_MASK;
|
|
}
|
|
|
|
while((secT & UCOL_REMOVE_CASE) == 0) {
|
|
secT = *(tCEs++) & UCOL_TERT_CASE_MASK;
|
|
}
|
|
|
|
if((secS & UCOL_CASE_BIT_MASK) < (secT & UCOL_CASE_BIT_MASK)) {
|
|
return UCOL_LESS;
|
|
} else if((secS & UCOL_CASE_BIT_MASK) > (secT & UCOL_CASE_BIT_MASK)) {
|
|
return UCOL_GREATER;
|
|
}
|
|
|
|
if((secS & UCOL_REMOVE_CASE) == 0x01 || (secT & UCOL_REMOVE_CASE) == 0x01 ) {
|
|
break;
|
|
} else {
|
|
secS = 0;
|
|
secT = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Tertiary level */
|
|
if(checkTertiary) {
|
|
secS = 0;
|
|
secT = 0;
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while((secS & UCOL_REMOVE_CASE) == 0) {
|
|
secS = *(sCEs++) & tertiaryMask;
|
|
}
|
|
|
|
while((secT & UCOL_REMOVE_CASE) == 0) {
|
|
secT = *(tCEs++) & tertiaryMask;
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if((secS & UCOL_REMOVE_CASE) == 1) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if(shifted) {
|
|
UBool sInShifted = TRUE;
|
|
UBool tInShifted = TRUE;
|
|
secS = 0;
|
|
secT = 0;
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while(secS == 0 && secS != 0x00010101 || (isContinuation(secS) && !sInShifted)) {
|
|
secS = *(sCEs++);
|
|
if(isContinuation(secS) && !sInShifted) {
|
|
continue;
|
|
}
|
|
if(secS > LVT || (secS & 0xFFFF0000) == 0) {
|
|
secS = 0xFFFF0000;
|
|
sInShifted = FALSE;
|
|
} else {
|
|
sInShifted = TRUE;
|
|
}
|
|
}
|
|
secS &= 0xFFFF0000;
|
|
|
|
|
|
while(secT == 0 && secT != 0x00010101 || (isContinuation(secT) && !tInShifted)) {
|
|
secT = *(tCEs++);
|
|
if(isContinuation(secT) && !tInShifted) {
|
|
continue;
|
|
}
|
|
if(secT > LVT || (secT & 0xFFFF0000) == 0) {
|
|
secT = 0xFFFF0000;
|
|
tInShifted = FALSE;
|
|
} else {
|
|
tInShifted = TRUE;
|
|
}
|
|
}
|
|
secT &= 0xFFFF0000;
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x00010000) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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) */
|
|
if(checkIdent)
|
|
{
|
|
int8_t comparison;
|
|
uint32_t sLen = sColl.len-sColl.string;
|
|
uint32_t tLen = tColl.len-tColl.string;
|
|
uint32_t compLen = 0;
|
|
|
|
if(sLen > tLen) {
|
|
compLen = tLen;
|
|
} else {
|
|
compLen = sLen;
|
|
}
|
|
|
|
comparison = u_strncmp(sColl.string, tColl.string, compLen);
|
|
|
|
if (comparison < 0)
|
|
{
|
|
result = UCOL_LESS;
|
|
}
|
|
else if (comparison == 0)
|
|
{
|
|
if(sLen > tLen) {
|
|
result = UCOL_GREATER;
|
|
} else if(sLen < tLen) {
|
|
result = UCOL_LESS;
|
|
} else {
|
|
result = UCOL_EQUAL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
result = UCOL_GREATER;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
void init_incrementalContext(const UCollator *coll, 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;
|
|
s->coll = coll;
|
|
}
|
|
|
|
/* This is the incremental function */
|
|
U_CAPI UCollationResult ucol_strcollinc(const UCollator *coll,
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UCharForwardIterator *source, void *sourceContext,
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UCharForwardIterator *target, void *targetContext)
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|
{
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incrementalContext sColl, tColl;
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init_incrementalContext(coll, source, sourceContext, &sColl);
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init_incrementalContext(coll, target, targetContext, &tColl);
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#if 0
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/* This is Andy's fast preparatory scan */
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/* It's good to have it - once the regular function is working */
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/* Scan the strings. Find:
|
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/* their length, if not given by caller */
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/* The length of any leading portion that is equal */
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/* Whether they are exactly equal. (in which case we just return */
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const UChar *pSrc = source;
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const UChar *pTarg = target;
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|
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const UChar *pSrcEnd = source + sourceLength;
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const UChar *pTargEnd = target + targetLength;
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|
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int32_t equalLength = 0;
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|
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// Scan while the strings are bitwise ==, or until one is exhausted.
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for (;;) {
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if (pSrc == pSrcEnd || pTarg == pTargEnd)
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break;
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if (*pSrc != *pTarg)
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break;
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if (*pSrc == 0 && (sourceLength == -1 || targetLength == -1))
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break;
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equalLength++;
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pSrc++;
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pTarg++;
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}
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|
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// If we made it all the way through both strings, we are done. They are ==
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if ((pSrc ==pSrcEnd || (pSrcEnd <pSrc && *pSrc==0)) && /* At end of src string, however it was specified. */
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(pTarg==pTargEnd || (pTargEnd<pTarg && *pTarg==0))) /* and also at end of dest string */
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return UCOL_EQUAL;
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// If we don't know the length of the src string, continue scanning it to get the length..
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if (sourceLength == -1) {
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while (*pSrc != 0 ) {
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pSrc++;
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}
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sourceLength = pSrc - source;
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}
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// If we don't know the length of the targ string, continue scanning it to get the length..
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if (targetLength == -1) {
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while (*pTarg != 0 ) {
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pTarg++;
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}
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targetLength = pTarg - target;
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}
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|
|
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if (equalLength > 2) {
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/* There is an identical portion at the beginning of the two strings. */
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/* If the identical portion ends within a contraction or a comibining */
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/* character sequence, back up to the start of that sequence. */
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pSrc = source + equalLength; /* point to the first differing chars */
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pTarg = target + equalLength;
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if (pSrc != source+sourceLength && ucol_unsafeCP(*pSrc, coll) ||
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pTarg != target+targetLength && ucol_unsafeCP(*pTarg, coll))
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{
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// We are stopped in the middle of a contraction.
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// Scan backwards through the == part of the string looking for the start of the contraction.
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// It doesn't matter which string we scan, since they are the same in this region.
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do
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{
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equalLength--;
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pSrc--;
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}
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while (equalLength>0 && ucol_unsafeCP(*pSrc, coll));
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}
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source += equalLength;
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target += equalLength;
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sourceLength -= equalLength;
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targetLength -= equalLength;
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}
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#endif
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UCollationResult result = UCOL_EQUAL;
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UErrorCode status = U_ZERO_ERROR;
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|
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UChar normSource[UCOL_MAX_BUFFER], normTarget[UCOL_MAX_BUFFER];
|
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UChar *normSourceP = normSource;
|
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UChar *normTargetP = normTarget;
|
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uint32_t normSourceLength = UCOL_MAX_BUFFER, normTargetLength = UCOL_MAX_BUFFER;
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|
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if(coll->normalizationMode != UCOL_OFF) { /* run away screaming!!!! */
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return alternateIncrementalProcessing(coll, &sColl, &tColl);
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}
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UColAttributeValue strength = coll->strength;
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UBool initialCheckSecTer = (strength >= UCOL_SECONDARY);
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|
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UBool checkSecTer = initialCheckSecTer;
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UBool checkTertiary = (strength >= UCOL_TERTIARY);
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|
UBool checkQuad = (strength >= UCOL_QUATERNARY);
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UBool checkIdent = (strength == UCOL_IDENTICAL);
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UBool checkCase = (coll->caseLevel == UCOL_ON);
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UBool isFrenchSec = (coll->frenchCollation == UCOL_ON) && checkSecTer;
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UBool upperFirst = (coll->caseFirst == UCOL_UPPER_FIRST) && checkTertiary;
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UBool shifted = (coll->alternateHandling == UCOL_SHIFTED) && checkQuad;
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|
|
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uint32_t sCEsArray[512], tCEsArray[512];
|
|
uint32_t *sCEs = sCEsArray, *tCEs = tCEsArray;
|
|
uint32_t *sCEend = sCEs+512, *tCEend = tCEs+512;
|
|
uint8_t caseSwitch = coll->caseSwitch;
|
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uint8_t tertiaryMask = coll->tertiaryMask;
|
|
|
|
uint32_t LVT = shifted*((coll->variableMax1)<<24 | (coll->variableMax2)<<16);
|
|
|
|
uint32_t secS = 0, secT = 0;
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|
|
|
uint32_t sOrder=0, tOrder=0;
|
|
if(!shifted) {
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|
for(;;) {
|
|
if(sCEs == sCEend || tCEs == tCEend) {
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|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
|
|
/* Get the next collation element in each of the strings, unless */
|
|
/* we've been requested to skip it. */
|
|
while(sOrder == 0) {
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
sOrder &= 0xFFFF0000;
|
|
}
|
|
|
|
while(tOrder == 0) {
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
tOrder &= 0xFFFF0000;
|
|
}
|
|
|
|
if(sOrder == tOrder) {
|
|
if(sOrder == 0x00010000) {
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|
|
|
break;
|
|
} else {
|
|
sOrder = 0; tOrder = 0;
|
|
continue;
|
|
}
|
|
} else if(sOrder < tOrder) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
} /* no primary difference... do the rest from the buffers */
|
|
} else { /* shifted - do a slightly more complicated processing */
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|
for(;;) {
|
|
UBool sInShifted = FALSE;
|
|
UBool tInShifted = FALSE;
|
|
|
|
if(sCEs == sCEend || tCEs == tCEend) {
|
|
return alternateIncrementalProcessing(coll, &sColl, &tColl);
|
|
}
|
|
|
|
/* This is where abridged version for shifted should go */
|
|
for(;;) {
|
|
sOrder = ucol_getIncrementalCE(coll, &sColl, &status);
|
|
if(sOrder == UCOL_NO_MORE_CES) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else if((sOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(sOrder)) {
|
|
if((sOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(sInShifted) {
|
|
sOrder &= 0xFFFF0000;
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|
*(sCEs++) = sOrder;
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(sInShifted) {
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(sOrder > LVT) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else {
|
|
if((sOrder & 0xFFFF0000) > 0) {
|
|
sInShifted = TRUE;
|
|
sOrder &= 0xFFFF0000;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
} else {
|
|
sOrder ^= caseSwitch;
|
|
*(sCEs++) = sOrder;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
sOrder &= 0xFFFF0000;
|
|
sInShifted = FALSE;
|
|
|
|
for(;;) {
|
|
tOrder = ucol_getIncrementalCE(coll, &tColl, &status);
|
|
if(tOrder == UCOL_NO_MORE_CES) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else if((tOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(tOrder)) {
|
|
if((tOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(tInShifted) {
|
|
tOrder &= 0xFFFF0000;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(tInShifted) {
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(tOrder > LVT) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else {
|
|
if((tOrder & 0xFFFF0000) > 0) {
|
|
tInShifted = TRUE;
|
|
tOrder &= 0xFFFF0000;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
} else {
|
|
tOrder ^= caseSwitch;
|
|
*(tCEs++) = tOrder;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
tOrder &= 0xFFFF0000;
|
|
tInShifted = FALSE;
|
|
|
|
if(sOrder == tOrder) {
|
|
if(sOrder == 0x00010000) {
|
|
break;
|
|
} else {
|
|
sOrder = 0; tOrder = 0;
|
|
continue;
|
|
}
|
|
} else if(sOrder < tOrder) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
} /* no primary difference... do the rest from the buffers */
|
|
}
|
|
|
|
/* now, we're gonna reexamine collected CEs */
|
|
sCEend = sCEs;
|
|
tCEend = tCEs;
|
|
|
|
/* This is the secondary level of comparison */
|
|
if(checkSecTer) {
|
|
if(!isFrenchSec) { /* normal */
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while (secS == 0) {
|
|
secS = *(sCEs++) & 0xFF00;
|
|
}
|
|
|
|
while(secT == 0) {
|
|
secT = *(tCEs++) & 0xFF00;
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x0100) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
} else { /* do the French */
|
|
uint32_t *sCESave = NULL;
|
|
uint32_t *tCESave = NULL;
|
|
sCEs = sCEend-2; /* this could also be sCEs-- if needs to be optimized */
|
|
tCEs = tCEend-2;
|
|
for(;;) {
|
|
while (secS == 0 && sCEs >= sCEsArray) {
|
|
if(sCESave == 0) {
|
|
secS = *(sCEs--) & 0xFF80;
|
|
if(isContinuation(secS)) {
|
|
while(isContinuation(secS = *(sCEs--) & 0xFF80));
|
|
/* after this, secS has the start of continuation, and sCEs points before that */
|
|
sCESave = sCEs; /* we save it, so that we know where to come back AND that we need to go forward */
|
|
sCEs+=2; /* need to point to the first continuation CP */
|
|
/* However, now you can just continue doing stuff */
|
|
}
|
|
} else {
|
|
secS = *(sCEs++) & 0xFF80;
|
|
if(!isContinuation(secS)) { /* This means we have finished with this cont */
|
|
sCEs = sCESave; /* reset the pointer to before continuation */
|
|
sCESave = 0;
|
|
continue;
|
|
}
|
|
}
|
|
secS &= 0xFF00; /* remove the continuation bit */
|
|
}
|
|
|
|
while(secT == 0 && tCEs >= tCEsArray) {
|
|
if(tCESave == 0) {
|
|
secT = *(tCEs--) & 0xFF80;
|
|
if(isContinuation(secT)) {
|
|
while(isContinuation(secT = *(tCEs--) & 0xFF80));
|
|
/* after this, secS has the start of continuation, and sCEs points before that */
|
|
tCESave = tCEs; /* we save it, so that we know where to come back AND that we need to go forward */
|
|
tCEs+=2; /* need to point to the first continuation CP */
|
|
/* However, now you can just continue doing stuff */
|
|
}
|
|
} else {
|
|
secT = *(tCEs++) & 0xFF80;
|
|
if(!isContinuation(secT)) { /* This means we have finished with this cont */
|
|
tCEs = tCESave; /* reset the pointer to before continuation */
|
|
tCESave = 0;
|
|
continue;
|
|
}
|
|
}
|
|
secT &= 0xFF00; /* remove the continuation bit */
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x0100 || (sCEs < sCEsArray && tCEs < tCEsArray)) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* doing the case bit */
|
|
if(checkCase) {
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while((secS & UCOL_REMOVE_CASE) == 0) {
|
|
secS = *(sCEs++) & UCOL_TERT_CASE_MASK;
|
|
}
|
|
|
|
while((secT & UCOL_REMOVE_CASE) == 0) {
|
|
secT = *(tCEs++) & UCOL_TERT_CASE_MASK;
|
|
}
|
|
|
|
if((secS & UCOL_CASE_BIT_MASK) < (secT & UCOL_CASE_BIT_MASK)) {
|
|
return UCOL_LESS;
|
|
} else if((secS & UCOL_CASE_BIT_MASK) > (secT & UCOL_CASE_BIT_MASK)) {
|
|
return UCOL_GREATER;
|
|
}
|
|
|
|
if((secS & UCOL_REMOVE_CASE) == 0x01 || (secT & UCOL_REMOVE_CASE) == 0x01 ) {
|
|
break;
|
|
} else {
|
|
secS = 0;
|
|
secT = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Tertiary level */
|
|
if(checkTertiary) {
|
|
secS = 0;
|
|
secT = 0;
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while((secS & UCOL_REMOVE_CASE) == 0) {
|
|
secS = *(sCEs++) & tertiaryMask;
|
|
}
|
|
|
|
while((secT & UCOL_REMOVE_CASE) == 0) {
|
|
secT = *(tCEs++) & tertiaryMask;
|
|
}
|
|
|
|
if(secS == secT) {
|
|
if((secS & UCOL_REMOVE_CASE) == 1) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if(shifted) {
|
|
UBool sInShifted = TRUE;
|
|
UBool tInShifted = TRUE;
|
|
secS = 0;
|
|
secT = 0;
|
|
sCEs = sCEsArray;
|
|
tCEs = tCEsArray;
|
|
for(;;) {
|
|
while(secS == 0 && secS != 0x00010101 || (isContinuation(secS) && !sInShifted)) {
|
|
secS = *(sCEs++);
|
|
if(isContinuation(secS) && !sInShifted) {
|
|
continue;
|
|
}
|
|
if(secS > LVT || (secS & 0xFFFF0000) == 0) {
|
|
secS = 0xFFFF0000;
|
|
sInShifted = FALSE;
|
|
} else {
|
|
sInShifted = TRUE;
|
|
}
|
|
}
|
|
secS &= 0xFFFF0000;
|
|
|
|
|
|
while(secT == 0 && secT != 0x00010101 || (isContinuation(secT) && !tInShifted)) {
|
|
secT = *(tCEs++);
|
|
if(isContinuation(secT) && !tInShifted) {
|
|
continue;
|
|
}
|
|
if(secT > LVT || (secT & 0xFFFF0000) == 0) {
|
|
secT = 0xFFFF0000;
|
|
tInShifted = FALSE;
|
|
} else {
|
|
tInShifted = TRUE;
|
|
}
|
|
}
|
|
secT &= 0xFFFF0000;
|
|
|
|
if(secS == secT) {
|
|
if(secS == 0x00010000) {
|
|
break;
|
|
} else {
|
|
secS = 0; secT = 0;
|
|
continue;
|
|
}
|
|
} else if(secS < secT) {
|
|
return UCOL_LESS;
|
|
} else {
|
|
return UCOL_GREATER;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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) */
|
|
if(checkIdent)
|
|
{
|
|
UnicodeString sourceDecomp, targetDecomp;
|
|
|
|
int8_t comparison;
|
|
|
|
/* synwee : implemented in c++ since normalizer is implemented there */
|
|
Normalizer::EMode mode = Normalizer::getNormalizerEMode(
|
|
ucol_getNormalization(coll), status);
|
|
|
|
Normalizer::normalize(UnicodeString(sColl.stringP, sColl.len-sColl.stringP-1),
|
|
mode, 0, sourceDecomp, status);
|
|
|
|
Normalizer::normalize(UnicodeString(tColl.stringP, tColl.len-tColl.stringP-1),
|
|
mode, 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;
|
|
}
|
|
|
|
/* 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 (ctx->CEpos > ctx->toReturn) { /* Are there any CEs from previous expansions? */
|
|
order = *(ctx->toReturn++); /* if so, return them */
|
|
if(ctx->CEpos == ctx->toReturn) {
|
|
ctx->CEpos = ctx->toReturn = ctx->CEs;
|
|
}
|
|
} else { /* This is the real business now */
|
|
if(ctx->lastChar == 0xFFFF) {
|
|
ctx->currentChar = ctx->source(ctx->sourceContext);
|
|
incctx_appendChar(ctx, ctx->currentChar);
|
|
if(ctx->currentChar == 0xFFFF) {
|
|
return UCOL_NO_MORE_CES;
|
|
}
|
|
} 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) { /* if a CE is special */
|
|
order = ucol_getIncrementalSpecialCE(coll, order, ctx, 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_getIncrementalUCA(ch, ctx, status);
|
|
}
|
|
}
|
|
}
|
|
/* 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_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, order, 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 */
|
|
const uint32_t
|
|
SBase = 0xAC00, LBase = 0x1100, VBase = 0x1161, TBase = 0x11A7,
|
|
LCount = 19, VCount = 21, TCount = 28,
|
|
NCount = VCount * TCount, // 588
|
|
SCount = LCount * NCount; // 11172
|
|
//LLimit = LBase + LCount, // 1113
|
|
//VLimit = VBase + VCount, // 1176
|
|
//TLimit = TBase + TCount, // 11C3
|
|
//SLimit = SBase + SCount; // D7A4
|
|
|
|
// once we have failed to find a match for codepoint cp, and are in the implicit code.
|
|
|
|
uint32_t L = ch - SBase;
|
|
//if (ch < SLimit) { // since it is unsigned, catchs zero case too
|
|
if (L < SCount) { // since it is unsigned, catchs zero case too
|
|
|
|
// divide into pieces
|
|
|
|
uint32_t T = L % TCount; // we do it in this order since some compilers can do % and / in one operation
|
|
L /= TCount;
|
|
uint32_t V = L % VCount;
|
|
L /= VCount;
|
|
|
|
// offset them
|
|
|
|
L += LBase;
|
|
V += VBase;
|
|
T += TBase;
|
|
|
|
// return the first CE, but first put the rest into the expansion buffer
|
|
if (!collationSource->coll->image->jamoSpecial) { // FAST PATH
|
|
|
|
*(collationSource->CEpos++) = ucmp32_get(UCA->mapping, V);
|
|
if (T != TBase) {
|
|
*(collationSource->CEpos++) = ucmp32_get(UCA->mapping, T);
|
|
}
|
|
|
|
return ucmp32_get(UCA->mapping, L); // return first one
|
|
|
|
} else { // Jamo is Special
|
|
ucol_getJamoCEs(collationSource->coll, L, &collationSource->CEpos);
|
|
ucol_getJamoCEs(collationSource->coll, V, &collationSource->CEpos);
|
|
if (T != TBase) {
|
|
ucol_getJamoCEs(collationSource->coll, T, &collationSource->CEpos);
|
|
}
|
|
return *(collationSource->toReturn++);
|
|
|
|
/*
|
|
// do recursive processing of L, V, and T with fetchCE (but T only if not equal to TBase!!)
|
|
// Since fetchCE returns a CE, and (potentially) stuffs items into the ce buffer,
|
|
// this is how it is done.
|
|
|
|
int firstCE = fetchCE(L, ...);
|
|
int* lastExpansion = expansionBufferEnd++; // set pointer, leave gap!
|
|
*lastExpansion = fetchCE(V,...);
|
|
if (T != TBase) {
|
|
lastExpansion = expansionBufferEnd++; // set pointer, leave gap!
|
|
*lastExpansion = fetchCE(T,...);
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
|
|
collationSource->lastChar = collationSource->source(collationSource->sourceContext);
|
|
incctx_appendChar(collationSource, collationSource->lastChar);
|
|
|
|
if(UTF_IS_FIRST_SURROGATE(ch)) {
|
|
if( (collationSource->lastChar != 0xFFFF) &&
|
|
UTF_IS_SECOND_SURROGATE((collationSource->lastChar))) {
|
|
uint32_t cp = (((ch)<<10UL)+(collationSource->lastChar)-((0xd800<<10UL)+0xdc00));
|
|
collationSource->lastChar = 0xFFFF; /*used up*/
|
|
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 = 0xD0800303 | (ch & 0xF000) << 12 | (ch & 0x0FE0) << 11;
|
|
*(collationSource->CEpos++) = 0x04000080 | (ch & 0x001F) << 27;
|
|
}
|
|
}
|
|
return order; /* return the CE */
|
|
}
|
|
|
|
|
|
int32_t ucol_getIncrementalSpecialCE(const UCollator *coll, uint32_t CE, incrementalContext *source, UErrorCode *status) {
|
|
int32_t i = 0; /* general counter */
|
|
|
|
if(U_FAILURE(*status)) return -1;
|
|
|
|
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 */
|
|
source->panic = TRUE;
|
|
return UCOL_NO_MORE_CES;
|
|
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 */
|
|
//! schar = *(++source->pos);
|
|
schar = source->lastChar = source->source(source->sourceContext);
|
|
incctx_appendChar(source, source->lastChar);
|
|
|
|
if (schar == 0xFFFF) { /* 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;
|
|
}
|
|
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 */
|
|
} else {
|
|
source->lastChar = 0xFFFF;
|
|
}
|
|
CE = *(coll->contractionCEs + (UCharOffset - coll->contractionIndex));
|
|
if(!isContraction(CE)) {
|
|
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;
|
|
|
|
}
|
|
|
|
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 abridged version of the loop */
|
|
/* should work the same, but it's harder to understand */
|
|
for(;;) {
|
|
/*UCOL_GETNEXTCE(sOrder, coll, sColl, &status);*/
|
|
sOrder = ucol_getNextCE(coll, &sColl, &status);
|
|
sOrder ^= caseSwitch;
|
|
if(sOrder == 0x00010101) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else if((sOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(sOrder)) {
|
|
if((sOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(sInShifted) {
|
|
sOrder &= 0xFFFF0000;
|
|
} else {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(sInShifted) {
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(sOrder > LVT) {
|
|
*(sCEs++) = sOrder;
|
|
break;
|
|
} else {
|
|
if((sOrder & 0xFFFF0000) > 0) {
|
|
sInShifted = TRUE;
|
|
sOrder &= 0xFFFF0000;
|
|
}
|
|
}
|
|
}
|
|
*(sCEs++) = sOrder;
|
|
}
|
|
sOrder &= 0xFFFF0000;
|
|
sInShifted = FALSE;
|
|
|
|
for(;;) {
|
|
/*UCOL_GETNEXTCE(tOrder, coll, tColl, &status);*/
|
|
tOrder = ucol_getNextCE(coll, &tColl, &status);*/
|
|
tOrder ^= caseSwitch;
|
|
if(tOrder == 0x00010101) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else if((tOrder & 0xFFFFFFBF) == 0) {
|
|
continue;
|
|
} else if(isContinuation(tOrder)) {
|
|
if((tOrder & 0xFFFF0000) > 0) { /* There is primary value */
|
|
if(tInShifted) {
|
|
tOrder &= 0xFFFF0000;
|
|
} else {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
}
|
|
} else { /* Just lower level values */
|
|
if(tInShifted) {
|
|
continue;
|
|
}
|
|
}
|
|
} else { /* regular */
|
|
if(tOrder > LVT) {
|
|
*(tCEs++) = tOrder;
|
|
break;
|
|
} else {
|
|
if((tOrder & 0xFFFF0000) > 0) {
|
|
tInShifted = TRUE;
|
|
tOrder &= 0xFFFF0000;
|
|
}
|
|
}
|
|
}
|
|
*(tCEs++) = tOrder;
|
|
}
|
|
tOrder &= 0xFFFF0000;
|
|
tInShifted = FALSE;
|
|
#endif
|