1fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius/* 2fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius******************************************************************************* 3fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* Copyright (C) 2013-2014, International Business Machines 4fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* Corporation and others. All Rights Reserved. 5fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius******************************************************************************* 6fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* collationdatareader.cpp 7fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* 8fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* created on: 2013feb07 9fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* created by: Markus W. Scherer 10fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius*/ 11fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 12fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "unicode/utypes.h" 13fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 14fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#if !UCONFIG_NO_COLLATION 15fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 16fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "unicode/ucol.h" 17fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "unicode/udata.h" 18fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "unicode/uscript.h" 19fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "cmemory.h" 20fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collation.h" 21fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationdata.h" 22fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationdatareader.h" 23fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationfastlatin.h" 24fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationkeys.h" 25fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationrootelements.h" 26fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationsettings.h" 27fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "collationtailoring.h" 28fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "normalizer2impl.h" 29fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "uassert.h" 30fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "ucmndata.h" 31fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#include "utrie2.h" 32fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 33fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0])) 34fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 35fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusU_NAMESPACE_BEGIN 36fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 37fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusnamespace { 38fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 39fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusint32_t getIndex(const int32_t *indexes, int32_t length, int32_t i) { 40fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return (i < length) ? indexes[i] : -1; 41fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius} 42fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 43fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius} // namespace 44fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 45fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusvoid 46fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusCollationDataReader::read(const CollationTailoring *base, const uint8_t *inBytes, int32_t inLength, 47fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius CollationTailoring &tailoring, UErrorCode &errorCode) { 48fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(U_FAILURE(errorCode)) { return; } 49fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(base != NULL) { 50fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(inBytes == NULL || (0 <= inLength && inLength < 24)) { 51fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_ILLEGAL_ARGUMENT_ERROR; 52fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 53fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 54fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const DataHeader *header = reinterpret_cast<const DataHeader *>(inBytes); 55fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(!(header->dataHeader.magic1 == 0xda && header->dataHeader.magic2 == 0x27 && 56fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius isAcceptable(tailoring.version, NULL, NULL, &header->info))) { 57fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 58fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 59fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 60fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(base->getUCAVersion() != tailoring.getUCAVersion()) { 61fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_COLLATOR_VERSION_MISMATCH; 62fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 63fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 64fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t headerLength = header->dataHeader.headerSize; 65fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius inBytes += headerLength; 66fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(inLength >= 0) { 67fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius inLength -= headerLength; 68fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 69fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 70fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 71fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(inBytes == NULL || (0 <= inLength && inLength < 8)) { 72fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_ILLEGAL_ARGUMENT_ERROR; 73fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 74fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 75fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const int32_t *inIndexes = reinterpret_cast<const int32_t *>(inBytes); 76fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t indexesLength = inIndexes[IX_INDEXES_LENGTH]; 77fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(indexesLength < 2 || (0 <= inLength && inLength < indexesLength * 4)) { 78fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Not enough indexes. 79fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 80fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 81fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 82fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Assume that the tailoring data is in initial state, 83fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // with NULL pointers and 0 lengths. 84fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 85fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Set pointers to non-empty data parts. 86fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Do this in order of their byte offsets. (Should help porting to Java.) 87fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 88fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t index; // one of the indexes[] slots 89fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t offset; // byte offset for the index part 90fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t length; // number of bytes in the index part 91fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 92fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(indexesLength > IX_TOTAL_SIZE) { 93fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = inIndexes[IX_TOTAL_SIZE]; 94fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(indexesLength > IX_REORDER_CODES_OFFSET) { 95fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = inIndexes[indexesLength - 1]; 96fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 97fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = 0; // only indexes, and inLength was already checked for them 98fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 99fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(0 <= inLength && inLength < length) { 100fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 101fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 102fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 103fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 104fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const CollationData *baseData = base == NULL ? NULL : base->data; 105fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const int32_t *reorderCodes = NULL; 106fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t reorderCodesLength = 0; 107fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_REORDER_CODES_OFFSET; 108fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 109fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 110fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 4) { 111fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(baseData == NULL) { 112fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // We assume for collation settings that 113fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // the base data does not have a reordering. 114fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 115fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 116fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 117fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius reorderCodes = reinterpret_cast<const int32_t *>(inBytes + offset); 118fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius reorderCodesLength = length / 4; 119fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 120fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 121fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // There should be a reorder table only if there are reorder codes. 122fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // However, when there are reorder codes the reorder table may be omitted to reduce 123fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // the data size. 124fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const uint8_t *reorderTable = NULL; 125fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_REORDER_TABLE_OFFSET; 126fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 127fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 128fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 256) { 129fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(reorderCodesLength == 0) { 130fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Reordering table without reordering codes. 131fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 132fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 133fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius reorderTable = inBytes + offset; 134fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 135fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // If we have reorder codes, then build the reorderTable at the end, 136fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // when the CollationData is otherwise complete. 137fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 138fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 139fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(baseData != NULL && baseData->numericPrimary != (inIndexes[IX_OPTIONS] & 0xff000000)) { 140fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 141fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 142fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 143fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius CollationData *data = NULL; // Remains NULL if there are no mappings. 144fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 145fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_TRIE_OFFSET; 146fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 147fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 148fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 8) { 149fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(!tailoring.ensureOwnedData(errorCode)) { return; } 150fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data = tailoring.ownedData; 151fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->base = baseData; 152fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->numericPrimary = inIndexes[IX_OPTIONS] & 0xff000000; 153fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->trie = tailoring.trie = utrie2_openFromSerialized( 154fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius UTRIE2_32_VALUE_BITS, inBytes + offset, length, NULL, 155fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius &errorCode); 156fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(U_FAILURE(errorCode)) { return; } 157fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 158fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Use the base data. Only the settings are tailored. 159fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.data = baseData; 160fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 161fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // No mappings. 162fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 163fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 164fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 165fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_CES_OFFSET; 166fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 167fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 168fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 8) { 169fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 170fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Tailored ces without tailored trie. 171fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 172fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 173fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->ces = reinterpret_cast<const int64_t *>(inBytes + offset); 174fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->cesLength = length / 8; 175fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 176fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 177fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_CE32S_OFFSET; 178fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 179fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 180fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 4) { 181fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 182fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Tailored ce32s without tailored trie. 183fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 184fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 185fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->ce32s = reinterpret_cast<const uint32_t *>(inBytes + offset); 186fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->ce32sLength = length / 4; 187fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 188fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 189fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t jamoCE32sStart = getIndex(inIndexes, indexesLength, IX_JAMO_CE32S_START); 190fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(jamoCE32sStart >= 0) { 191fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL || data->ce32s == NULL) { 192fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Index into non-existent ce32s[]. 193fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 194fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 195fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->jamoCE32s = data->ce32s + jamoCE32sStart; 196fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(data == NULL) { 197fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Nothing to do. 198fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 199fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->jamoCE32s = baseData->jamoCE32s; 200fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 201fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // No Jamo CE32s for Hangul processing. 202fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 203fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 204fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 205fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_ROOT_ELEMENTS_OFFSET; 206fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 207fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 208fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 4) { 209fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length /= 4; 210fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL || length <= CollationRootElements::IX_SEC_TER_BOUNDARIES) { 211fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 212fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 213fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 214fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->rootElements = reinterpret_cast<const uint32_t *>(inBytes + offset); 215fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->rootElementsLength = length; 216fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uint32_t commonSecTer = data->rootElements[CollationRootElements::IX_COMMON_SEC_AND_TER_CE]; 217fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(commonSecTer != Collation::COMMON_SEC_AND_TER_CE) { 218fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 219fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 220fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 221fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uint32_t secTerBoundaries = data->rootElements[CollationRootElements::IX_SEC_TER_BOUNDARIES]; 222fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if((secTerBoundaries >> 24) < CollationKeys::SEC_COMMON_HIGH) { 223fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // [fixed last secondary common byte] is too low, 224fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // and secondary weights would collide with compressed common secondaries. 225fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 226fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 227fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 228fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 229fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 230fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_CONTEXTS_OFFSET; 231fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 232fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 233fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 2) { 234fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 235fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // Tailored contexts without tailored trie. 236fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 237fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 238fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->contexts = reinterpret_cast<const UChar *>(inBytes + offset); 239fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->contextsLength = length / 2; 240fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 241fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 242fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_UNSAFE_BWD_OFFSET; 243fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 244fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 245fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 2) { 246fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 247fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 248fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 249fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 250fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(baseData == NULL) { 251fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Create the unsafe-backward set for the root collator. 252fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Include all non-zero combining marks and trail surrogates. 253fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // We do this at load time, rather than at build time, 254fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // to simplify Unicode version bootstrapping: 255fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // The root data builder only needs the new FractionalUCA.txt data, 256fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // but it need not be built with a version of ICU already updated to 257fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // the corresponding new Unicode Character Database. 258fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // 259fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // The following is an optimized version of 260fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // new UnicodeSet("[[:^lccc=0:][\\udc00-\\udfff]]"). 261fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // It is faster and requires fewer code dependencies. 262fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.unsafeBackwardSet = new UnicodeSet(0xdc00, 0xdfff); // trail surrogates 263fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(tailoring.unsafeBackwardSet == NULL) { 264fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_MEMORY_ALLOCATION_ERROR; 265fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 266fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 267fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->nfcImpl.addLcccChars(*tailoring.unsafeBackwardSet); 268fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 269fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Clone the root collator's set contents. 270fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.unsafeBackwardSet = static_cast<UnicodeSet *>( 271fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius baseData->unsafeBackwardSet->cloneAsThawed()); 272fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(tailoring.unsafeBackwardSet == NULL) { 273fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_MEMORY_ALLOCATION_ERROR; 274fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 275fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 276fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 277fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Add the ranges from the data file to the unsafe-backward set. 278fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius USerializedSet sset; 279fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const uint16_t *unsafeData = reinterpret_cast<const uint16_t *>(inBytes + offset); 280fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(!uset_getSerializedSet(&sset, unsafeData, length / 2)) { 281fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 282fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 283fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 284fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t count = uset_getSerializedRangeCount(&sset); 285fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius for(int32_t i = 0; i < count; ++i) { 286fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius UChar32 start, end; 287fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uset_getSerializedRange(&sset, i, &start, &end); 288fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.unsafeBackwardSet->add(start, end); 289fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 290fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Mark each lead surrogate as "unsafe" 291fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // if any of its 1024 associated supplementary code points is "unsafe". 292fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius UChar32 c = 0x10000; 293fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius for(UChar lead = 0xd800; lead < 0xdc00; ++lead, c += 0x400) { 294fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(!tailoring.unsafeBackwardSet->containsNone(c, c + 0x3ff)) { 295fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.unsafeBackwardSet->add(lead); 296fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 297fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 298fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.unsafeBackwardSet->freeze(); 299fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->unsafeBackwardSet = tailoring.unsafeBackwardSet; 300fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(data == NULL) { 301fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Nothing to do. 302fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 303fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // No tailoring-specific data: Alias the root collator's set. 304fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->unsafeBackwardSet = baseData->unsafeBackwardSet; 305fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 306fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // No unsafeBackwardSet. 307fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 308fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 309fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 310fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // If the fast Latin format version is different, 311fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // or the version is set to 0 for "no fast Latin table", 312fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // then just always use the normal string comparison path. 313fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data != NULL) { 314fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTable = NULL; 315fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTableLength = 0; 316fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(((inIndexes[IX_OPTIONS] >> 16) & 0xff) == CollationFastLatin::VERSION) { 317fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_FAST_LATIN_TABLE_OFFSET; 318fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 319fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 320fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 2) { 321fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTable = reinterpret_cast<const uint16_t *>(inBytes + offset); 322fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTableLength = length / 2; 323fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if((*data->fastLatinTable >> 8) != CollationFastLatin::VERSION) { 324fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // header vs. table version mismatch 325fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 326fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 327fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 328fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTable = baseData->fastLatinTable; 329fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->fastLatinTableLength = baseData->fastLatinTableLength; 330fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 331fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 332fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 333fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 334fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_SCRIPTS_OFFSET; 335fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 336fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 337fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 2) { 338fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 339fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 340fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 341fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 342fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->scripts = reinterpret_cast<const uint16_t *>(inBytes + offset); 343fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->scriptsLength = length / 2; 344fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(data == NULL) { 345fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Nothing to do. 346fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 347fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->scripts = baseData->scripts; 348fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->scriptsLength = baseData->scriptsLength; 349fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 350fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 351fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius index = IX_COMPRESSIBLE_BYTES_OFFSET; 352fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius offset = getIndex(inIndexes, indexesLength, index); 353fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius length = getIndex(inIndexes, indexesLength, index + 1) - offset; 354fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(length >= 256) { 355fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(data == NULL) { 356fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 357fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 358fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 359fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->compressibleBytes = reinterpret_cast<const UBool *>(inBytes + offset); 360fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(data == NULL) { 361fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Nothing to do. 362fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else if(baseData != NULL) { 363fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius data->compressibleBytes = baseData->compressibleBytes; 364fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 365fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; // No compressibleBytes[]. 366fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 367fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 368fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 369fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const CollationSettings &ts = *tailoring.settings; 370fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t options = inIndexes[IX_OPTIONS] & 0xffff; 371fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uint16_t fastLatinPrimaries[CollationFastLatin::LATIN_LIMIT]; 372fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius int32_t fastLatinOptions = CollationFastLatin::getOptions( 373fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.data, ts, fastLatinPrimaries, LENGTHOF(fastLatinPrimaries)); 374fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(options == ts.options && ts.variableTop != 0 && 375fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius reorderCodesLength == ts.reorderCodesLength && 376fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uprv_memcmp(reorderCodes, ts.reorderCodes, reorderCodesLength * 4) == 0 && 377fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius fastLatinOptions == ts.fastLatinOptions && 378fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius (fastLatinOptions < 0 || 379fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uprv_memcmp(fastLatinPrimaries, ts.fastLatinPrimaries, 380fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius sizeof(fastLatinPrimaries)) == 0)) { 381fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 382fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 383fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 384fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius CollationSettings *settings = SharedObject::copyOnWrite(tailoring.settings); 385fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(settings == NULL) { 386fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_MEMORY_ALLOCATION_ERROR; 387fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 388fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 389fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius settings->options = options; 390fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius // Set variableTop from options and scripts data. 391fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius settings->variableTop = tailoring.data->getLastPrimaryForGroup( 392fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius UCOL_REORDER_CODE_FIRST + settings->getMaxVariable()); 393fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(settings->variableTop == 0) { 394fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_INVALID_FORMAT_ERROR; 395fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 396fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 397fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 398fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(reorderCodesLength == 0 || reorderTable != NULL) { 399fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius settings->aliasReordering(reorderCodes, reorderCodesLength, reorderTable); 400fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 401fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uint8_t table[256]; 402fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius baseData->makeReorderTable(reorderCodes, reorderCodesLength, table, errorCode); 403fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(U_FAILURE(errorCode)) { return; } 404fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(!settings->setReordering(reorderCodes, reorderCodesLength,table)) { 405fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius errorCode = U_MEMORY_ALLOCATION_ERROR; 406fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return; 407fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 408fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 409fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 410fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius settings->fastLatinOptions = CollationFastLatin::getOptions( 411fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius tailoring.data, *settings, 412fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius settings->fastLatinPrimaries, LENGTHOF(settings->fastLatinPrimaries)); 413fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius} 414fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 415fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusUBool U_CALLCONV 416fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusCollationDataReader::isAcceptable(void *context, 417fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const char * /* type */, const char * /*name*/, 418fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius const UDataInfo *pInfo) { 419fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if( 420fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->size >= 20 && 421fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->isBigEndian == U_IS_BIG_ENDIAN && 422fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->charsetFamily == U_CHARSET_FAMILY && 423fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->dataFormat[0] == 0x55 && // dataFormat="UCol" 424fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->dataFormat[1] == 0x43 && 425fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->dataFormat[2] == 0x6f && 426fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->dataFormat[3] == 0x6c && 427fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius pInfo->formatVersion[0] == 4 428fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius ) { 429fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius UVersionInfo *version = static_cast<UVersionInfo *>(context); 430fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius if(version != NULL) { 431fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius uprv_memcpy(version, pInfo->dataVersion, 4); 432fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 433fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return TRUE; 434fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } else { 435fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius return FALSE; 436fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius } 437fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius} 438fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 439fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusU_NAMESPACE_END 440fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius 441fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius#endif // !UCONFIG_NO_COLLATION 442