diff options
Diffstat (limited to 'deps/node/deps/icu-small/source/common/ucol_swp.cpp')
| -rw-r--r-- | deps/node/deps/icu-small/source/common/ucol_swp.cpp | 615 |
1 files changed, 0 insertions, 615 deletions
diff --git a/deps/node/deps/icu-small/source/common/ucol_swp.cpp b/deps/node/deps/icu-small/source/common/ucol_swp.cpp deleted file mode 100644 index 97b5c4af..00000000 --- a/deps/node/deps/icu-small/source/common/ucol_swp.cpp +++ /dev/null @@ -1,615 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -******************************************************************************* -* -* Copyright (C) 2003-2015, International Business Machines -* Corporation and others. All Rights Reserved. -* -******************************************************************************* -* file name: ucol_swp.cpp -* encoding: UTF-8 -* tab size: 8 (not used) -* indentation:4 -* -* created on: 2003sep10 -* created by: Markus W. Scherer -* -* Swap collation binaries. -*/ - -#include "unicode/udata.h" /* UDataInfo */ -#include "utrie.h" -#include "utrie2.h" -#include "udataswp.h" -#include "cmemory.h" -#include "ucol_data.h" -#include "ucol_swp.h" - -/* swapping ----------------------------------------------------------------- */ - -#if !UCONFIG_NO_COLLATION - -U_CAPI UBool U_EXPORT2 -ucol_looksLikeCollationBinary(const UDataSwapper *ds, - const void *inData, int32_t length) { - if(ds==NULL || inData==NULL || length<-1) { - return FALSE; - } - - // First check for format version 4+ which has a standard data header. - UErrorCode errorCode=U_ZERO_ERROR; - (void)udata_swapDataHeader(ds, inData, -1, NULL, &errorCode); - if(U_SUCCESS(errorCode)) { - const UDataInfo &info=*(const UDataInfo *)((const char *)inData+4); - if(info.dataFormat[0]==0x55 && // dataFormat="UCol" - info.dataFormat[1]==0x43 && - info.dataFormat[2]==0x6f && - info.dataFormat[3]==0x6c) { - return TRUE; - } - } - - // Else check for format version 3. - const UCATableHeader *inHeader=(const UCATableHeader *)inData; - - /* - * The collation binary must contain at least the UCATableHeader, - * starting with its size field. - * sizeof(UCATableHeader)==42*4 in ICU 2.8 - * check the length against the header size before reading the size field - */ - UCATableHeader header; - uprv_memset(&header, 0, sizeof(header)); - if(length<0) { - header.size=udata_readInt32(ds, inHeader->size); - } else if((length<(42*4) || length<(header.size=udata_readInt32(ds, inHeader->size)))) { - return FALSE; - } - - header.magic=ds->readUInt32(inHeader->magic); - if(!( - header.magic==UCOL_HEADER_MAGIC && - inHeader->formatVersion[0]==3 /*&& - inHeader->formatVersion[1]>=0*/ - )) { - return FALSE; - } - - if(inHeader->isBigEndian!=ds->inIsBigEndian || inHeader->charSetFamily!=ds->inCharset) { - return FALSE; - } - - return TRUE; -} - -namespace { - -/* swap a header-less collation formatVersion=3 binary, inside a resource bundle or ucadata.icu */ -int32_t -swapFormatVersion3(const UDataSwapper *ds, - const void *inData, int32_t length, void *outData, - UErrorCode *pErrorCode) { - const uint8_t *inBytes; - uint8_t *outBytes; - - const UCATableHeader *inHeader; - UCATableHeader *outHeader; - UCATableHeader header; - - uint32_t count; - - /* argument checking in case we were not called from ucol_swap() */ - if(U_FAILURE(*pErrorCode)) { - return 0; - } - if(ds==NULL || inData==NULL || length<-1 || (length>0 && outData==NULL)) { - *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; - return 0; - } - - inBytes=(const uint8_t *)inData; - outBytes=(uint8_t *)outData; - - inHeader=(const UCATableHeader *)inData; - outHeader=(UCATableHeader *)outData; - - /* - * The collation binary must contain at least the UCATableHeader, - * starting with its size field. - * sizeof(UCATableHeader)==42*4 in ICU 2.8 - * check the length against the header size before reading the size field - */ - uprv_memset(&header, 0, sizeof(header)); - if(length<0) { - header.size=udata_readInt32(ds, inHeader->size); - } else if((length<(42*4) || length<(header.size=udata_readInt32(ds, inHeader->size)))) { - udata_printError(ds, "ucol_swap(formatVersion=3): too few bytes (%d after header) for collation data\n", - length); - *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; - return 0; - } - - header.magic=ds->readUInt32(inHeader->magic); - if(!( - header.magic==UCOL_HEADER_MAGIC && - inHeader->formatVersion[0]==3 /*&& - inHeader->formatVersion[1]>=0*/ - )) { - udata_printError(ds, "ucol_swap(formatVersion=3): magic 0x%08x or format version %02x.%02x is not a collation binary\n", - header.magic, - inHeader->formatVersion[0], inHeader->formatVersion[1]); - *pErrorCode=U_UNSUPPORTED_ERROR; - return 0; - } - - if(inHeader->isBigEndian!=ds->inIsBigEndian || inHeader->charSetFamily!=ds->inCharset) { - udata_printError(ds, "ucol_swap(formatVersion=3): endianness %d or charset %d does not match the swapper\n", - inHeader->isBigEndian, inHeader->charSetFamily); - *pErrorCode=U_INVALID_FORMAT_ERROR; - return 0; - } - - if(length>=0) { - /* copy everything, takes care of data that needs no swapping */ - if(inBytes!=outBytes) { - uprv_memcpy(outBytes, inBytes, header.size); - } - - /* swap the necessary pieces in the order of their occurrence in the data */ - - /* read more of the UCATableHeader (the size field was read above) */ - header.options= ds->readUInt32(inHeader->options); - header.UCAConsts= ds->readUInt32(inHeader->UCAConsts); - header.contractionUCACombos= ds->readUInt32(inHeader->contractionUCACombos); - header.mappingPosition= ds->readUInt32(inHeader->mappingPosition); - header.expansion= ds->readUInt32(inHeader->expansion); - header.contractionIndex= ds->readUInt32(inHeader->contractionIndex); - header.contractionCEs= ds->readUInt32(inHeader->contractionCEs); - header.contractionSize= ds->readUInt32(inHeader->contractionSize); - header.endExpansionCE= ds->readUInt32(inHeader->endExpansionCE); - header.expansionCESize= ds->readUInt32(inHeader->expansionCESize); - header.endExpansionCECount= udata_readInt32(ds, inHeader->endExpansionCECount); - header.contractionUCACombosSize=udata_readInt32(ds, inHeader->contractionUCACombosSize); - header.scriptToLeadByte= ds->readUInt32(inHeader->scriptToLeadByte); - header.leadByteToScript= ds->readUInt32(inHeader->leadByteToScript); - - /* swap the 32-bit integers in the header */ - ds->swapArray32(ds, inHeader, (int32_t)((const char *)&inHeader->jamoSpecial-(const char *)inHeader), - outHeader, pErrorCode); - ds->swapArray32(ds, &(inHeader->scriptToLeadByte), sizeof(header.scriptToLeadByte) + sizeof(header.leadByteToScript), - &(outHeader->scriptToLeadByte), pErrorCode); - /* set the output platform properties */ - outHeader->isBigEndian=ds->outIsBigEndian; - outHeader->charSetFamily=ds->outCharset; - - /* swap the options */ - if(header.options!=0) { - ds->swapArray32(ds, inBytes+header.options, header.expansion-header.options, - outBytes+header.options, pErrorCode); - } - - /* swap the expansions */ - if(header.mappingPosition!=0 && header.expansion!=0) { - if(header.contractionIndex!=0) { - /* expansions bounded by contractions */ - count=header.contractionIndex-header.expansion; - } else { - /* no contractions: expansions bounded by the main trie */ - count=header.mappingPosition-header.expansion; - } - ds->swapArray32(ds, inBytes+header.expansion, (int32_t)count, - outBytes+header.expansion, pErrorCode); - } - - /* swap the contractions */ - if(header.contractionSize!=0) { - /* contractionIndex: UChar[] */ - ds->swapArray16(ds, inBytes+header.contractionIndex, header.contractionSize*2, - outBytes+header.contractionIndex, pErrorCode); - - /* contractionCEs: CEs[] */ - ds->swapArray32(ds, inBytes+header.contractionCEs, header.contractionSize*4, - outBytes+header.contractionCEs, pErrorCode); - } - - /* swap the main trie */ - if(header.mappingPosition!=0) { - count=header.endExpansionCE-header.mappingPosition; - utrie_swap(ds, inBytes+header.mappingPosition, (int32_t)count, - outBytes+header.mappingPosition, pErrorCode); - } - - /* swap the max expansion table */ - if(header.endExpansionCECount!=0) { - ds->swapArray32(ds, inBytes+header.endExpansionCE, header.endExpansionCECount*4, - outBytes+header.endExpansionCE, pErrorCode); - } - - /* expansionCESize, unsafeCP, contrEndCP: uint8_t[], no need to swap */ - - /* swap UCA constants */ - if(header.UCAConsts!=0) { - /* - * if UCAConsts!=0 then contractionUCACombos because we are swapping - * the UCA data file, and we know that the UCA contains contractions - */ - ds->swapArray32(ds, inBytes+header.UCAConsts, header.contractionUCACombos-header.UCAConsts, - outBytes+header.UCAConsts, pErrorCode); - } - - /* swap UCA contractions */ - if(header.contractionUCACombosSize!=0) { - count=header.contractionUCACombosSize*inHeader->contractionUCACombosWidth*U_SIZEOF_UCHAR; - ds->swapArray16(ds, inBytes+header.contractionUCACombos, (int32_t)count, - outBytes+header.contractionUCACombos, pErrorCode); - } - - /* swap the script to lead bytes */ - if(header.scriptToLeadByte!=0) { - int indexCount = ds->readUInt16(*((uint16_t*)(inBytes+header.scriptToLeadByte))); // each entry = 2 * uint16 - int dataCount = ds->readUInt16(*((uint16_t*)(inBytes+header.scriptToLeadByte + 2))); // each entry = uint16 - ds->swapArray16(ds, inBytes+header.scriptToLeadByte, - 4 + (4 * indexCount) + (2 * dataCount), - outBytes+header.scriptToLeadByte, pErrorCode); - } - - /* swap the lead byte to scripts */ - if(header.leadByteToScript!=0) { - int indexCount = ds->readUInt16(*((uint16_t*)(inBytes+header.leadByteToScript))); // each entry = uint16 - int dataCount = ds->readUInt16(*((uint16_t*)(inBytes+header.leadByteToScript + 2))); // each entry = uint16 - ds->swapArray16(ds, inBytes+header.leadByteToScript, - 4 + (2 * indexCount) + (2 * dataCount), - outBytes+header.leadByteToScript, pErrorCode); - } - } - - return header.size; -} - -// swap formatVersion 4 or 5 ----------------------------------------------- *** - -// The following are copied from CollationDataReader, trading an awkward copy of constants -// for an awkward relocation of the i18n collationdatareader.h file into the common library. -// Keep them in sync! - -enum { - IX_INDEXES_LENGTH, // 0 - IX_OPTIONS, - IX_RESERVED2, - IX_RESERVED3, - - IX_JAMO_CE32S_START, // 4 - IX_REORDER_CODES_OFFSET, - IX_REORDER_TABLE_OFFSET, - IX_TRIE_OFFSET, - - IX_RESERVED8_OFFSET, // 8 - IX_CES_OFFSET, - IX_RESERVED10_OFFSET, - IX_CE32S_OFFSET, - - IX_ROOT_ELEMENTS_OFFSET, // 12 - IX_CONTEXTS_OFFSET, - IX_UNSAFE_BWD_OFFSET, - IX_FAST_LATIN_TABLE_OFFSET, - - IX_SCRIPTS_OFFSET, // 16 - IX_COMPRESSIBLE_BYTES_OFFSET, - IX_RESERVED18_OFFSET, - IX_TOTAL_SIZE -}; - -int32_t -swapFormatVersion4(const UDataSwapper *ds, - const void *inData, int32_t length, void *outData, - UErrorCode &errorCode) { - if(U_FAILURE(errorCode)) { return 0; } - - const uint8_t *inBytes=(const uint8_t *)inData; - uint8_t *outBytes=(uint8_t *)outData; - - const int32_t *inIndexes=(const int32_t *)inBytes; - int32_t indexes[IX_TOTAL_SIZE+1]; - - // Need at least IX_INDEXES_LENGTH and IX_OPTIONS. - if(0<=length && length<8) { - udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " - "(%d after header) for collation data\n", - length); - errorCode=U_INDEX_OUTOFBOUNDS_ERROR; - return 0; - } - - int32_t indexesLength=indexes[0]=udata_readInt32(ds, inIndexes[0]); - if(0<=length && length<(indexesLength*4)) { - udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " - "(%d after header) for collation data\n", - length); - errorCode=U_INDEX_OUTOFBOUNDS_ERROR; - return 0; - } - - for(int32_t i=1; i<=IX_TOTAL_SIZE && i<indexesLength; ++i) { - indexes[i]=udata_readInt32(ds, inIndexes[i]); - } - for(int32_t i=indexesLength; i<=IX_TOTAL_SIZE; ++i) { - indexes[i]=-1; - } - inIndexes=NULL; // Make sure we do not accidentally use these instead of indexes[]. - - // Get the total length of the data. - int32_t size; - if(indexesLength>IX_TOTAL_SIZE) { - size=indexes[IX_TOTAL_SIZE]; - } else if(indexesLength>IX_REORDER_CODES_OFFSET) { - size=indexes[indexesLength-1]; - } else { - size=indexesLength*4; - } - if(length<0) { return size; } - - if(length<size) { - udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " - "(%d after header) for collation data\n", - length); - errorCode=U_INDEX_OUTOFBOUNDS_ERROR; - return 0; - } - - // Copy the data for inaccessible bytes and arrays of bytes. - if(inBytes!=outBytes) { - uprv_memcpy(outBytes, inBytes, size); - } - - // Swap the int32_t indexes[]. - ds->swapArray32(ds, inBytes, indexesLength * 4, outBytes, &errorCode); - - // The following is a modified version of CollationDataReader::read(). - // Here we use indexes[] not inIndexes[] because - // the inIndexes[] may not be in this machine's endianness. - int32_t index; // one of the indexes[] slots - int32_t offset; // byte offset for the index part - // int32_t length; // number of bytes in the index part - - index = IX_REORDER_CODES_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - // Skip the IX_REORDER_TABLE_OFFSET byte array. - - index = IX_TRIE_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - utrie2_swap(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_RESERVED8_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED8_OFFSET\n", length); - errorCode = U_UNSUPPORTED_ERROR; - return 0; - } - - index = IX_CES_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray64(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_RESERVED10_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED10_OFFSET\n", length); - errorCode = U_UNSUPPORTED_ERROR; - return 0; - } - - index = IX_CE32S_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_ROOT_ELEMENTS_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_CONTEXTS_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_UNSAFE_BWD_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_FAST_LATIN_TABLE_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - index = IX_SCRIPTS_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); - } - - // Skip the IX_COMPRESSIBLE_BYTES_OFFSET byte array. - - index = IX_RESERVED18_OFFSET; - offset = indexes[index]; - length = indexes[index + 1] - offset; - if(length > 0) { - udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED18_OFFSET\n", length); - errorCode = U_UNSUPPORTED_ERROR; - return 0; - } - - return size; -} - -} // namespace - -/* swap ICU collation data like ucadata.icu */ -U_CAPI int32_t U_EXPORT2 -ucol_swap(const UDataSwapper *ds, - const void *inData, int32_t length, void *outData, - UErrorCode *pErrorCode) { - if(U_FAILURE(*pErrorCode)) { return 0; } - - /* udata_swapDataHeader checks the arguments */ - int32_t headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode); - if(U_FAILURE(*pErrorCode)) { - // Try to swap the old format version which did not have a standard data header. - *pErrorCode=U_ZERO_ERROR; - return swapFormatVersion3(ds, inData, length, outData, pErrorCode); - } - - /* check data format and format version */ - const UDataInfo &info=*(const UDataInfo *)((const char *)inData+4); - if(!( - info.dataFormat[0]==0x55 && // dataFormat="UCol" - info.dataFormat[1]==0x43 && - info.dataFormat[2]==0x6f && - info.dataFormat[3]==0x6c && - (3<=info.formatVersion[0] && info.formatVersion[0]<=5) - )) { - udata_printError(ds, "ucol_swap(): data format %02x.%02x.%02x.%02x " - "(format version %02x.%02x) is not recognized as collation data\n", - info.dataFormat[0], info.dataFormat[1], - info.dataFormat[2], info.dataFormat[3], - info.formatVersion[0], info.formatVersion[1]); - *pErrorCode=U_UNSUPPORTED_ERROR; - return 0; - } - - inData=(const char *)inData+headerSize; - if(length>=0) { length-=headerSize; } - outData=(char *)outData+headerSize; - int32_t collationSize; - if(info.formatVersion[0]>=4) { - collationSize=swapFormatVersion4(ds, inData, length, outData, *pErrorCode); - } else { - collationSize=swapFormatVersion3(ds, inData, length, outData, pErrorCode); - } - if(U_SUCCESS(*pErrorCode)) { - return headerSize+collationSize; - } else { - return 0; - } -} - -/* swap inverse UCA collation data (invuca.icu) */ -U_CAPI int32_t U_EXPORT2 -ucol_swapInverseUCA(const UDataSwapper *ds, - const void *inData, int32_t length, void *outData, - UErrorCode *pErrorCode) { - const UDataInfo *pInfo; - int32_t headerSize; - - const uint8_t *inBytes; - uint8_t *outBytes; - - const InverseUCATableHeader *inHeader; - InverseUCATableHeader *outHeader; - InverseUCATableHeader header={ 0,0,0,0,0,{0,0,0,0},{0,0,0,0,0,0,0,0} }; - - /* udata_swapDataHeader checks the arguments */ - headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode); - if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { - return 0; - } - - /* check data format and format version */ - pInfo=(const UDataInfo *)((const char *)inData+4); - if(!( - pInfo->dataFormat[0]==0x49 && /* dataFormat="InvC" */ - pInfo->dataFormat[1]==0x6e && - pInfo->dataFormat[2]==0x76 && - pInfo->dataFormat[3]==0x43 && - pInfo->formatVersion[0]==2 && - pInfo->formatVersion[1]>=1 - )) { - udata_printError(ds, "ucol_swapInverseUCA(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not an inverse UCA collation file\n", - pInfo->dataFormat[0], pInfo->dataFormat[1], - pInfo->dataFormat[2], pInfo->dataFormat[3], - pInfo->formatVersion[0], pInfo->formatVersion[1]); - *pErrorCode=U_UNSUPPORTED_ERROR; - return 0; - } - - inBytes=(const uint8_t *)inData+headerSize; - outBytes=(uint8_t *)outData+headerSize; - - inHeader=(const InverseUCATableHeader *)inBytes; - outHeader=(InverseUCATableHeader *)outBytes; - - /* - * The inverse UCA collation binary must contain at least the InverseUCATableHeader, - * starting with its size field. - * sizeof(UCATableHeader)==8*4 in ICU 2.8 - * check the length against the header size before reading the size field - */ - if(length<0) { - header.byteSize=udata_readInt32(ds, inHeader->byteSize); - } else if( - ((length-headerSize)<(8*4) || - (uint32_t)(length-headerSize)<(header.byteSize=udata_readInt32(ds, inHeader->byteSize))) - ) { - udata_printError(ds, "ucol_swapInverseUCA(): too few bytes (%d after header) for inverse UCA collation data\n", - length); - *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; - return 0; - } - - if(length>=0) { - /* copy everything, takes care of data that needs no swapping */ - if(inBytes!=outBytes) { - uprv_memcpy(outBytes, inBytes, header.byteSize); - } - - /* swap the necessary pieces in the order of their occurrence in the data */ - - /* read more of the InverseUCATableHeader (the byteSize field was read above) */ - header.tableSize= ds->readUInt32(inHeader->tableSize); - header.contsSize= ds->readUInt32(inHeader->contsSize); - header.table= ds->readUInt32(inHeader->table); - header.conts= ds->readUInt32(inHeader->conts); - - /* swap the 32-bit integers in the header */ - ds->swapArray32(ds, inHeader, 5*4, outHeader, pErrorCode); - - /* swap the inverse table; tableSize counts uint32_t[3] rows */ - ds->swapArray32(ds, inBytes+header.table, header.tableSize*3*4, - outBytes+header.table, pErrorCode); - - /* swap the continuation table; contsSize counts UChars */ - ds->swapArray16(ds, inBytes+header.conts, header.contsSize*U_SIZEOF_UCHAR, - outBytes+header.conts, pErrorCode); - } - - return headerSize+header.byteSize; -} - -#endif /* #if !UCONFIG_NO_COLLATION */ |