+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
***************************************************************************
-* Copyright (C) 1999-2003 International Business Machines Corporation *
+* Copyright (C) 1999-2014 International Business Machines Corporation *
* and others. All rights reserved. *
***************************************************************************
*/
//
//-----------------------------------------------------------------------------
RBBIDataWrapper::RBBIDataWrapper(const RBBIDataHeader *data, UErrorCode &status) {
+ init0();
init(data, status);
}
+RBBIDataWrapper::RBBIDataWrapper(const RBBIDataHeader *data, enum EDontAdopt, UErrorCode &status) {
+ init0();
+ init(data, status);
+ fDontFreeData = TRUE;
+}
+
RBBIDataWrapper::RBBIDataWrapper(UDataMemory* udm, UErrorCode &status) {
- const RBBIDataHeader *d = (const RBBIDataHeader *)
- ((char *)&(udm->pHeader->info) + udm->pHeader->info.size);
- init(d, status);
+ init0();
+ if (U_FAILURE(status)) {
+ return;
+ }
+ const DataHeader *dh = udm->pHeader;
+ int32_t headerSize = dh->dataHeader.headerSize;
+ if ( !(headerSize >= 20 &&
+ dh->info.isBigEndian == U_IS_BIG_ENDIAN &&
+ dh->info.charsetFamily == U_CHARSET_FAMILY &&
+ dh->info.dataFormat[0] == 0x42 && // dataFormat="Brk "
+ dh->info.dataFormat[1] == 0x72 &&
+ dh->info.dataFormat[2] == 0x6b &&
+ dh->info.dataFormat[3] == 0x20)
+ // Note: info.fFormatVersion is duplicated in the RBBIDataHeader, and is
+ // validated when checking that.
+ ) {
+ status = U_INVALID_FORMAT_ERROR;
+ return;
+ }
+ const char *dataAsBytes = reinterpret_cast<const char *>(dh);
+ const RBBIDataHeader *rbbidh = reinterpret_cast<const RBBIDataHeader *>(dataAsBytes + headerSize);
+ init(rbbidh, status);
fUDataMem = udm;
}
// constructors.
//
//-----------------------------------------------------------------------------
+void RBBIDataWrapper::init0() {
+ fHeader = NULL;
+ fForwardTable = NULL;
+ fReverseTable = NULL;
+ fSafeFwdTable = NULL;
+ fSafeRevTable = NULL;
+ fRuleSource = NULL;
+ fRuleStatusTable = NULL;
+ fUDataMem = NULL;
+ fRefCount = 0;
+ fDontFreeData = TRUE;
+}
+
void RBBIDataWrapper::init(const RBBIDataHeader *data, UErrorCode &status) {
if (U_FAILURE(status)) {
return;
}
fHeader = data;
- if (fHeader->fMagic != 0xb1a0) {
- status = U_BRK_INTERNAL_ERROR;
+ if (fHeader->fMagic != 0xb1a0 || fHeader->fFormatVersion[0] != 3)
+ {
+ status = U_INVALID_FORMAT_ERROR;
return;
}
+ // Note: in ICU version 3.2 and earlier, there was a formatVersion 1
+ // that is no longer supported. At that time fFormatVersion was
+ // an int32_t field, rather than an array of 4 bytes.
- fUDataMem = NULL;
- fForwardTable = (RBBIStateTable *)((char *)data + fHeader->fFTable);
- fReverseTable = NULL;
+ fDontFreeData = FALSE;
+ if (data->fFTableLen != 0) {
+ fForwardTable = (RBBIStateTable *)((char *)data + fHeader->fFTable);
+ }
if (data->fRTableLen != 0) {
fReverseTable = (RBBIStateTable *)((char *)data + fHeader->fRTable);
}
+ if (data->fSFTableLen != 0) {
+ fSafeFwdTable = (RBBIStateTable *)((char *)data + fHeader->fSFTable);
+ }
+ if (data->fSRTableLen != 0) {
+ fSafeRevTable = (RBBIStateTable *)((char *)data + fHeader->fSRTable);
+ }
utrie_unserialize(&fTrie,
fRuleSource = (UChar *)((char *)data + fHeader->fRuleSource);
fRuleString.setTo(TRUE, fRuleSource, -1);
+ U_ASSERT(data->fRuleSourceLen > 0);
+
+ fRuleStatusTable = (int32_t *)((char *)data + fHeader->fStatusTable);
+ fStatusMaxIdx = data->fStatusTableLen / sizeof(int32_t);
fRefCount = 1;
//-----------------------------------------------------------------------------
//
-// Destructor. Don't call this - use removeReferenc() instead.
+// Destructor. Don't call this - use removeReference() instead.
//
//-----------------------------------------------------------------------------
RBBIDataWrapper::~RBBIDataWrapper() {
U_ASSERT(fRefCount == 0);
if (fUDataMem) {
udata_close(fUDataMem);
- } else {
+ } else if (!fDontFreeData) {
uprv_free((void *)fHeader);
}
}
// getRuleSourceString
//
//-----------------------------------------------------------------------------
-const UnicodeString &RBBIDataWrapper::getRuleSourceString() {
+const UnicodeString &RBBIDataWrapper::getRuleSourceString() const {
return fRuleString;
}
// print - debugging function to dump the runtime data tables.
//
//-----------------------------------------------------------------------------
-void RBBIDataWrapper::printData() {
#ifdef RBBI_DEBUG
- uint32_t c, s;
+void RBBIDataWrapper::printTable(const char *heading, const RBBIStateTable *table) {
+ uint32_t c;
+ uint32_t s;
- RBBIDebugPrintf("RBBI Data at %p\n", (void *)fHeader);
- RBBIDebugPrintf(" Version = %d\n", fHeader->fVersion);
- RBBIDebugPrintf(" total length of data = %d\n", fHeader->fLength);
- RBBIDebugPrintf(" number of character categories = %d\n\n", fHeader->fCatCount);
+ RBBIDebugPrintf(" %s\n", heading);
- RBBIDebugPrintf(" Forward State Transition Table\n");
- RBBIDebugPrintf("State | Acc LA Tag");
+ RBBIDebugPrintf("State | Acc LA TagIx");
for (c=0; c<fHeader->fCatCount; c++) {RBBIDebugPrintf("%3d ", c);}
- RBBIDebugPrintf("\n------|---------------"); for (c=0;c<fHeader->fCatCount; c++) {RBBIDebugPrintf("----");}
+ RBBIDebugPrintf("\n------|---------------"); for (c=0;c<fHeader->fCatCount; c++) {
+ RBBIDebugPrintf("----");
+ }
RBBIDebugPrintf("\n");
- for (s=0; s<fForwardTable->fNumStates; s++) {
+ if (table == NULL) {
+ RBBIDebugPrintf(" N U L L T A B L E\n\n");
+ return;
+ }
+ for (s=0; s<table->fNumStates; s++) {
RBBIStateTableRow *row = (RBBIStateTableRow *)
- (fForwardTable->fTableData + (fForwardTable->fRowLen * s));
- RBBIDebugPrintf("%4d | %3d %3d %3d ", s, row->fAccepting, row->fLookAhead, row->fTag);
+ (table->fTableData + (table->fRowLen * s));
+ RBBIDebugPrintf("%4d | %3d %3d %3d ", s, row->fAccepting, row->fLookAhead, row->fTagIdx);
for (c=0; c<fHeader->fCatCount; c++) {
RBBIDebugPrintf("%3d ", row->fNextState[c]);
}
RBBIDebugPrintf("\n");
}
+ RBBIDebugPrintf("\n");
+}
+#endif
+
+
+#ifdef RBBI_DEBUG
+void RBBIDataWrapper::printData() {
+ RBBIDebugPrintf("RBBI Data at %p\n", (void *)fHeader);
+ RBBIDebugPrintf(" Version = {%d %d %d %d}\n", fHeader->fFormatVersion[0], fHeader->fFormatVersion[1],
+ fHeader->fFormatVersion[2], fHeader->fFormatVersion[3]);
+ RBBIDebugPrintf(" total length of data = %d\n", fHeader->fLength);
+ RBBIDebugPrintf(" number of character categories = %d\n\n", fHeader->fCatCount);
+
+ printTable("Forward State Transition Table", fForwardTable);
+ printTable("Reverse State Transition Table", fReverseTable);
+ printTable("Safe Forward State Transition Table", fSafeFwdTable);
+ printTable("Safe Reverse State Transition Table", fSafeRevTable);
RBBIDebugPrintf("\nOrignal Rules source:\n");
- c = 0;
- for (;;) {
- if (fRuleSource[c] == 0)
- break;
+ for (int32_t c=0; fRuleSource[c] != 0; c++) {
RBBIDebugPrintf("%c", fRuleSource[c]);
- c++;
}
RBBIDebugPrintf("\n\n");
-#endif
}
-
+#endif
U_NAMESPACE_END
+U_NAMESPACE_USE
+
+//-----------------------------------------------------------------------------
+//
+// ubrk_swap - byte swap and char encoding swap of RBBI data
+//
+//-----------------------------------------------------------------------------
+
+U_CAPI int32_t U_EXPORT2
+ubrk_swap(const UDataSwapper *ds, const void *inData, int32_t length, void *outData,
+ UErrorCode *status) {
+
+ if (status == NULL || U_FAILURE(*status)) {
+ return 0;
+ }
+ if(ds==NULL || inData==NULL || length<-1 || (length>0 && outData==NULL)) {
+ *status=U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+
+ //
+ // Check that the data header is for for break data.
+ // (Header contents are defined in genbrk.cpp)
+ //
+ const UDataInfo *pInfo = (const UDataInfo *)((const char *)inData+4);
+ if(!( pInfo->dataFormat[0]==0x42 && /* dataFormat="Brk " */
+ pInfo->dataFormat[1]==0x72 &&
+ pInfo->dataFormat[2]==0x6b &&
+ pInfo->dataFormat[3]==0x20 &&
+ pInfo->formatVersion[0]==3 )) {
+ udata_printError(ds, "ubrk_swap(): data format %02x.%02x.%02x.%02x (format version %02x) is not recognized\n",
+ pInfo->dataFormat[0], pInfo->dataFormat[1],
+ pInfo->dataFormat[2], pInfo->dataFormat[3],
+ pInfo->formatVersion[0]);
+ *status=U_UNSUPPORTED_ERROR;
+ return 0;
+ }
+
+ //
+ // Swap the data header. (This is the generic ICU Data Header, not the RBBI Specific
+ // RBBIDataHeader). This swap also conveniently gets us
+ // the size of the ICU d.h., which lets us locate the start
+ // of the RBBI specific data.
+ //
+ int32_t headerSize=udata_swapDataHeader(ds, inData, length, outData, status);
+
+
+ //
+ // Get the RRBI Data Header, and check that it appears to be OK.
+ //
+ // Note: ICU 3.2 and earlier, RBBIDataHeader::fDataFormat was actually
+ // an int32_t with a value of 1. Starting with ICU 3.4,
+ // RBBI's fDataFormat matches the dataFormat field from the
+ // UDataInfo header, four int8_t bytes. The value is {3,1,0,0}
+ //
+ const uint8_t *inBytes =(const uint8_t *)inData+headerSize;
+ RBBIDataHeader *rbbiDH = (RBBIDataHeader *)inBytes;
+ if (ds->readUInt32(rbbiDH->fMagic) != 0xb1a0 ||
+ rbbiDH->fFormatVersion[0] != 3 ||
+ ds->readUInt32(rbbiDH->fLength) < sizeof(RBBIDataHeader))
+ {
+ udata_printError(ds, "ubrk_swap(): RBBI Data header is invalid.\n");
+ *status=U_UNSUPPORTED_ERROR;
+ return 0;
+ }
+
+ //
+ // Prefight operation? Just return the size
+ //
+ int32_t breakDataLength = ds->readUInt32(rbbiDH->fLength);
+ int32_t totalSize = headerSize + breakDataLength;
+ if (length < 0) {
+ return totalSize;
+ }
+
+ //
+ // Check that length passed in is consistent with length from RBBI data header.
+ //
+ if (length < totalSize) {
+ udata_printError(ds, "ubrk_swap(): too few bytes (%d after ICU Data header) for break data.\n",
+ breakDataLength);
+ *status=U_INDEX_OUTOFBOUNDS_ERROR;
+ return 0;
+ }
+
+
+ //
+ // Swap the Data. Do the data itself first, then the RBBI Data Header, because
+ // we need to reference the header to locate the data, and an
+ // inplace swap of the header leaves it unusable.
+ //
+ uint8_t *outBytes = (uint8_t *)outData + headerSize;
+ RBBIDataHeader *outputDH = (RBBIDataHeader *)outBytes;
+
+ int32_t tableStartOffset;
+ int32_t tableLength;
+
+ //
+ // If not swapping in place, zero out the output buffer before starting.
+ // Individual tables and other data items within are aligned to 8 byte boundaries
+ // when originally created. Any unused space between items needs to be zero.
+ //
+ if (inBytes != outBytes) {
+ uprv_memset(outBytes, 0, breakDataLength);
+ }
+
+ //
+ // Each state table begins with several 32 bit fields. Calculate the size
+ // in bytes of these.
+ //
+ int32_t topSize = offsetof(RBBIStateTable, fTableData);
+
+ // Forward state table.
+ tableStartOffset = ds->readUInt32(rbbiDH->fFTable);
+ tableLength = ds->readUInt32(rbbiDH->fFTableLen);
+
+ if (tableLength > 0) {
+ ds->swapArray32(ds, inBytes+tableStartOffset, topSize,
+ outBytes+tableStartOffset, status);
+ ds->swapArray16(ds, inBytes+tableStartOffset+topSize, tableLength-topSize,
+ outBytes+tableStartOffset+topSize, status);
+ }
+
+ // Reverse state table. Same layout as forward table, above.
+ tableStartOffset = ds->readUInt32(rbbiDH->fRTable);
+ tableLength = ds->readUInt32(rbbiDH->fRTableLen);
+
+ if (tableLength > 0) {
+ ds->swapArray32(ds, inBytes+tableStartOffset, topSize,
+ outBytes+tableStartOffset, status);
+ ds->swapArray16(ds, inBytes+tableStartOffset+topSize, tableLength-topSize,
+ outBytes+tableStartOffset+topSize, status);
+ }
+
+ // Safe Forward state table. Same layout as forward table, above.
+ tableStartOffset = ds->readUInt32(rbbiDH->fSFTable);
+ tableLength = ds->readUInt32(rbbiDH->fSFTableLen);
+
+ if (tableLength > 0) {
+ ds->swapArray32(ds, inBytes+tableStartOffset, topSize,
+ outBytes+tableStartOffset, status);
+ ds->swapArray16(ds, inBytes+tableStartOffset+topSize, tableLength-topSize,
+ outBytes+tableStartOffset+topSize, status);
+ }
+
+ // Safe Reverse state table. Same layout as forward table, above.
+ tableStartOffset = ds->readUInt32(rbbiDH->fSRTable);
+ tableLength = ds->readUInt32(rbbiDH->fSRTableLen);
+
+ if (tableLength > 0) {
+ ds->swapArray32(ds, inBytes+tableStartOffset, topSize,
+ outBytes+tableStartOffset, status);
+ ds->swapArray16(ds, inBytes+tableStartOffset+topSize, tableLength-topSize,
+ outBytes+tableStartOffset+topSize, status);
+ }
+
+ // Trie table for character categories
+ utrie_swap(ds, inBytes+ds->readUInt32(rbbiDH->fTrie), ds->readUInt32(rbbiDH->fTrieLen),
+ outBytes+ds->readUInt32(rbbiDH->fTrie), status);
+
+ // Source Rules Text. It's UChar data
+ ds->swapArray16(ds, inBytes+ds->readUInt32(rbbiDH->fRuleSource), ds->readUInt32(rbbiDH->fRuleSourceLen),
+ outBytes+ds->readUInt32(rbbiDH->fRuleSource), status);
+
+ // Table of rule status values. It's all int_32 values
+ ds->swapArray32(ds, inBytes+ds->readUInt32(rbbiDH->fStatusTable), ds->readUInt32(rbbiDH->fStatusTableLen),
+ outBytes+ds->readUInt32(rbbiDH->fStatusTable), status);
+
+ // And, last, the header.
+ // It is all int32_t values except for fFormataVersion, which is an array of four bytes.
+ // Swap the whole thing as int32_t, then re-swap the one field.
+ //
+ ds->swapArray32(ds, inBytes, sizeof(RBBIDataHeader), outBytes, status);
+ ds->swapArray32(ds, outputDH->fFormatVersion, 4, outputDH->fFormatVersion, status);
+
+ return totalSize;
+}
+
#endif /* #if !UCONFIG_NO_BREAK_ITERATION */
projects / apple / icu.git / blobdiff