328 lines
13 KiB
C
328 lines
13 KiB
C
/*
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 2003, 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/utypes.h"
|
|
|
|
#if !UCONFIG_NO_COLLATION
|
|
|
|
#include "unicode/udata.h" /* UDataInfo */
|
|
#include "cmemory.h"
|
|
#include "utrie.h"
|
|
#include "udataswp.h"
|
|
#include "ucol_imp.h"
|
|
#include "ucol_swp.h"
|
|
|
|
/* 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={ 0 };
|
|
|
|
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
|
|
*/
|
|
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]==2 &&
|
|
inHeader->formatVersion[1]>=3
|
|
)) {
|
|
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);
|
|
|
|
/* swap the 32-bit integers in the header */
|
|
ds->swapArray32(ds, inHeader, (int32_t)((const char *)&inHeader->jamoSpecial-(const char *)inHeader),
|
|
outHeader, 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);
|
|
}
|
|
}
|
|
|
|
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]==2 &&
|
|
pInfo->formatVersion[1]>=3
|
|
)) {
|
|
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 };
|
|
|
|
/* 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 */
|