Index: icu46/source/common/ucol_swp.cpp |
=================================================================== |
--- icu46/source/common/ucol_swp.cpp (revision 0) |
+++ icu46/source/common/ucol_swp.cpp (revision 0) |
@@ -0,0 +1,469 @@ |
+/* |
+******************************************************************************* |
+* |
+* Copyright (C) 2003-2010, International Business Machines |
+* Corporation and others. All Rights Reserved. |
+* |
+******************************************************************************* |
+* file name: ucol_swp.c |
+* encoding: US-ASCII |
+* 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 "udataswp.h" |
+#include "cmemory.h" |
+#include "ucol_imp.h" |
+#include "ucol_swp.h" |
+ |
+/* swapping ----------------------------------------------------------------- */ |
+ |
+/* |
+ * This performs data swapping for a folded trie (see utrie.c for details). |
+ */ |
+ |
+U_CAPI int32_t U_EXPORT2 |
+utrie_swap(const UDataSwapper *ds, |
+ const void *inData, int32_t length, void *outData, |
+ UErrorCode *pErrorCode) { |
+ const UTrieHeader *inTrie; |
+ UTrieHeader trie; |
+ int32_t size; |
+ UBool dataIs32; |
+ |
+ if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { |
+ return 0; |
+ } |
+ if(ds==NULL || inData==NULL || (length>=0 && outData==NULL)) { |
+ *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
+ return 0; |
+ } |
+ |
+ /* setup and swapping */ |
+ if(length>=0 && (uint32_t)length<sizeof(UTrieHeader)) { |
+ *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
+ return 0; |
+ } |
+ |
+ inTrie=(const UTrieHeader *)inData; |
+ trie.signature=ds->readUInt32(inTrie->signature); |
+ trie.options=ds->readUInt32(inTrie->options); |
+ trie.indexLength=udata_readInt32(ds, inTrie->indexLength); |
+ trie.dataLength=udata_readInt32(ds, inTrie->dataLength); |
+ |
+ if( trie.signature!=0x54726965 || |
+ (trie.options&UTRIE_OPTIONS_SHIFT_MASK)!=UTRIE_SHIFT || |
+ ((trie.options>>UTRIE_OPTIONS_INDEX_SHIFT)&UTRIE_OPTIONS_SHIFT_MASK)!=UTRIE_INDEX_SHIFT || |
+ trie.indexLength<UTRIE_BMP_INDEX_LENGTH || |
+ (trie.indexLength&(UTRIE_SURROGATE_BLOCK_COUNT-1))!=0 || |
+ trie.dataLength<UTRIE_DATA_BLOCK_LENGTH || |
+ (trie.dataLength&(UTRIE_DATA_GRANULARITY-1))!=0 || |
+ ((trie.options&UTRIE_OPTIONS_LATIN1_IS_LINEAR)!=0 && trie.dataLength<(UTRIE_DATA_BLOCK_LENGTH+0x100)) |
+ ) { |
+ *pErrorCode=U_INVALID_FORMAT_ERROR; /* not a UTrie */ |
+ return 0; |
+ } |
+ |
+ dataIs32=(UBool)((trie.options&UTRIE_OPTIONS_DATA_IS_32_BIT)!=0); |
+ size=sizeof(UTrieHeader)+trie.indexLength*2+trie.dataLength*(dataIs32?4:2); |
+ |
+ if(length>=0) { |
+ UTrieHeader *outTrie; |
+ |
+ if(length<size) { |
+ *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
+ return 0; |
+ } |
+ |
+ outTrie=(UTrieHeader *)outData; |
+ |
+ /* swap the header */ |
+ ds->swapArray32(ds, inTrie, sizeof(UTrieHeader), outTrie, pErrorCode); |
+ |
+ /* swap the index and the data */ |
+ if(dataIs32) { |
+ ds->swapArray16(ds, inTrie+1, trie.indexLength*2, outTrie+1, pErrorCode); |
+ ds->swapArray32(ds, (const uint16_t *)(inTrie+1)+trie.indexLength, trie.dataLength*4, |
+ (uint16_t *)(outTrie+1)+trie.indexLength, pErrorCode); |
+ } else { |
+ ds->swapArray16(ds, inTrie+1, (trie.indexLength+trie.dataLength)*2, outTrie+1, pErrorCode); |
+ } |
+ } |
+ |
+ return size; |
+} |
+ |
+#if !UCONFIG_NO_COLLATION |
+ |
+/* Modified copy of the beginning of ucol_swapBinary(). */ |
+U_CAPI UBool U_EXPORT2 |
+ucol_looksLikeCollationBinary(const UDataSwapper *ds, |
+ const void *inData, int32_t length) { |
+ const uint8_t *inBytes; |
+ const UCATableHeader *inHeader; |
+ UCATableHeader header; |
+ |
+ if(ds==NULL || inData==NULL || length<-1) { |
+ return FALSE; |
+ } |
+ |
+ inBytes=(const uint8_t *)inData; |
+ 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 |
+ */ |
+ 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; |
+} |
+ |
+/* swap a header-less collation binary, inside a resource bundle or ucadata.icu */ |
+U_CAPI int32_t U_EXPORT2 |
+ucol_swapBinary(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(pErrorCode==NULL || 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_swapBinary(): 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_swapBinary(): 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_swapBinary(): 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 |
+ */ |
+ count=header.contractionUCACombos-header.UCAConsts; |
+ 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 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) { |
+ |
+ const UDataInfo *pInfo; |
+ int32_t headerSize, collationSize; |
+ |
+ /* 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]==0x55 && /* dataFormat="UCol" */ |
+ pInfo->dataFormat[1]==0x43 && |
+ pInfo->dataFormat[2]==0x6f && |
+ pInfo->dataFormat[3]==0x6c && |
+ pInfo->formatVersion[0]==3 /*&& |
+ pInfo->formatVersion[1]>=0*/ |
+ )) { |
+ udata_printError(ds, "ucol_swap(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not a 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; |
+ } |
+ |
+ collationSize=ucol_swapBinary(ds, |
+ (const char *)inData+headerSize, |
+ length>=0 ? length-headerSize : -1, |
+ (char *)outData+headerSize, |
+ 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 */ |
Property changes on: icu46/source/common/ucol_swp.cpp |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |