#ifndef __NORMALIZER2IMPL_H__
#define __NORMALIZER2IMPL_H__
#include "unicode/utypes.h"
#if !UCONFIG_NO_NORMALIZATION
#include "unicode/normalizer2.h"
#include "unicode/udata.h"
#include "unicode/unistr.h"
#include "unicode/unorm.h"
#include "unicode/utf16.h"
#include "mutex.h"
#include "uset_imp.h"
#include "utrie2.h"
U_NAMESPACE_BEGIN
struct CanonIterData;
class Hangul {
public:
enum {
JAMO_L_BASE=0x1100,
JAMO_V_BASE=0x1161,
JAMO_T_BASE=0x11a7,
HANGUL_BASE=0xac00,
JAMO_L_COUNT=19,
JAMO_V_COUNT=21,
JAMO_T_COUNT=28,
JAMO_VT_COUNT=JAMO_V_COUNT*JAMO_T_COUNT,
HANGUL_COUNT=JAMO_L_COUNT*JAMO_V_COUNT*JAMO_T_COUNT,
HANGUL_LIMIT=HANGUL_BASE+HANGUL_COUNT
};
static inline UBool isHangul(UChar32 c) {
return HANGUL_BASE<=c && c<HANGUL_LIMIT;
}
static inline UBool
isHangulWithoutJamoT(UChar c) {
c-=HANGUL_BASE;
return c<HANGUL_COUNT && c%JAMO_T_COUNT==0;
}
static inline UBool isJamoL(UChar32 c) {
return (uint32_t)(c-JAMO_L_BASE)<JAMO_L_COUNT;
}
static inline UBool isJamoV(UChar32 c) {
return (uint32_t)(c-JAMO_V_BASE)<JAMO_V_COUNT;
}
static inline int32_t decompose(UChar32 c, UChar buffer[3]) {
c-=HANGUL_BASE;
UChar32 c2=c%JAMO_T_COUNT;
c/=JAMO_T_COUNT;
buffer[0]=(UChar)(JAMO_L_BASE+c/JAMO_V_COUNT);
buffer[1]=(UChar)(JAMO_V_BASE+c%JAMO_V_COUNT);
if(c2==0) {
return 2;
} else {
buffer[2]=(UChar)(JAMO_T_BASE+c2);
return 3;
}
}
static inline void getRawDecomposition(UChar32 c, UChar buffer[2]) {
UChar32 orig=c;
c-=HANGUL_BASE;
UChar32 c2=c%JAMO_T_COUNT;
if(c2==0) {
c/=JAMO_T_COUNT;
buffer[0]=(UChar)(JAMO_L_BASE+c/JAMO_V_COUNT);
buffer[1]=(UChar)(JAMO_V_BASE+c%JAMO_V_COUNT);
} else {
buffer[0]=orig-c2; buffer[1]=(UChar)(JAMO_T_BASE+c2);
}
}
private:
Hangul(); };
class Normalizer2Impl;
class ReorderingBuffer : public UMemory {
public:
ReorderingBuffer(const Normalizer2Impl &ni, UnicodeString &dest) :
impl(ni), str(dest),
start(NULL), reorderStart(NULL), limit(NULL),
remainingCapacity(0), lastCC(0) {}
~ReorderingBuffer() {
if(start!=NULL) {
str.releaseBuffer((int32_t)(limit-start));
}
}
UBool init(int32_t destCapacity, UErrorCode &errorCode);
UBool isEmpty() const { return start==limit; }
int32_t length() const { return (int32_t)(limit-start); }
UChar *getStart() { return start; }
UChar *getLimit() { return limit; }
uint8_t getLastCC() const { return lastCC; }
UBool equals(const UChar *start, const UChar *limit) const;
void setLastChar(UChar c) {
*(limit-1)=c;
}
UBool append(UChar32 c, uint8_t cc, UErrorCode &errorCode) {
return (c<=0xffff) ?
appendBMP((UChar)c, cc, errorCode) :
appendSupplementary(c, cc, errorCode);
}
UBool append(const UChar *s, int32_t length,
uint8_t leadCC, uint8_t trailCC,
UErrorCode &errorCode);
UBool appendBMP(UChar c, uint8_t cc, UErrorCode &errorCode) {
if(remainingCapacity==0 && !resize(1, errorCode)) {
return FALSE;
}
if(lastCC<=cc || cc==0) {
*limit++=c;
lastCC=cc;
if(cc<=1) {
reorderStart=limit;
}
} else {
insert(c, cc);
}
--remainingCapacity;
return TRUE;
}
UBool appendZeroCC(UChar32 c, UErrorCode &errorCode);
UBool appendZeroCC(const UChar *s, const UChar *sLimit, UErrorCode &errorCode);
void remove();
void removeSuffix(int32_t suffixLength);
void setReorderingLimit(UChar *newLimit) {
remainingCapacity+=(int32_t)(limit-newLimit);
reorderStart=limit=newLimit;
lastCC=0;
}
void copyReorderableSuffixTo(UnicodeString &s) const {
s.setTo(reorderStart, (int32_t)(limit-reorderStart));
}
private:
UBool appendSupplementary(UChar32 c, uint8_t cc, UErrorCode &errorCode);
void insert(UChar32 c, uint8_t cc);
static void writeCodePoint(UChar *p, UChar32 c) {
if(c<=0xffff) {
*p=(UChar)c;
} else {
p[0]=U16_LEAD(c);
p[1]=U16_TRAIL(c);
}
}
UBool resize(int32_t appendLength, UErrorCode &errorCode);
const Normalizer2Impl &impl;
UnicodeString &str;
UChar *start, *reorderStart, *limit;
int32_t remainingCapacity;
uint8_t lastCC;
void setIterator() { codePointStart=limit; }
void skipPrevious(); uint8_t previousCC();
UChar *codePointStart, *codePointLimit;
};
class U_COMMON_API Normalizer2Impl : public UMemory {
public:
Normalizer2Impl() : memory(NULL), normTrie(NULL) {
canonIterDataSingleton.fInstance=NULL;
}
~Normalizer2Impl();
void load(const char *packageName, const char *name, UErrorCode &errorCode);
void addPropertyStarts(const USetAdder *sa, UErrorCode &errorCode) const;
void addCanonIterPropertyStarts(const USetAdder *sa, UErrorCode &errorCode) const;
const UTrie2 *getNormTrie() const { return normTrie; }
UBool ensureCanonIterData(UErrorCode &errorCode) const;
uint16_t getNorm16(UChar32 c) const { return UTRIE2_GET16(normTrie, c); }
UNormalizationCheckResult getCompQuickCheck(uint16_t norm16) const {
if(norm16<minNoNo || MIN_YES_YES_WITH_CC<=norm16) {
return UNORM_YES;
} else if(minMaybeYes<=norm16) {
return UNORM_MAYBE;
} else {
return UNORM_NO;
}
}
UBool isCompNo(uint16_t norm16) const { return minNoNo<=norm16 && norm16<minMaybeYes; }
UBool isDecompYes(uint16_t norm16) const { return norm16<minYesNo || minMaybeYes<=norm16; }
uint8_t getCC(uint16_t norm16) const {
if(norm16>=MIN_NORMAL_MAYBE_YES) {
return (uint8_t)norm16;
}
if(norm16<minNoNo || limitNoNo<=norm16) {
return 0;
}
return getCCFromNoNo(norm16);
}
static uint8_t getCCFromYesOrMaybe(uint16_t norm16) {
return norm16>=MIN_NORMAL_MAYBE_YES ? (uint8_t)norm16 : 0;
}
uint16_t getFCD16(UChar32 c) const {
if(c<0) {
return 0;
} else if(c<0x180) {
return tccc180[c];
} else if(c<=0xffff) {
if(!singleLeadMightHaveNonZeroFCD16(c)) { return 0; }
}
return getFCD16FromNormData(c);
}
uint16_t nextFCD16(const UChar *&s, const UChar *limit) const {
UChar32 c=*s++;
if(c<0x180) {
return tccc180[c];
} else if(!singleLeadMightHaveNonZeroFCD16(c)) {
return 0;
}
UChar c2;
if(U16_IS_LEAD(c) && s!=limit && U16_IS_TRAIL(c2=*s)) {
c=U16_GET_SUPPLEMENTARY(c, c2);
++s;
}
return getFCD16FromNormData(c);
}
uint16_t previousFCD16(const UChar *start, const UChar *&s) const {
UChar32 c=*--s;
if(c<0x180) {
return tccc180[c];
}
if(!U16_IS_TRAIL(c)) {
if(!singleLeadMightHaveNonZeroFCD16(c)) {
return 0;
}
} else {
UChar c2;
if(start<s && U16_IS_LEAD(c2=*(s-1))) {
c=U16_GET_SUPPLEMENTARY(c2, c);
--s;
}
}
return getFCD16FromNormData(c);
}
uint16_t getFCD16FromBelow180(UChar32 c) const { return tccc180[c]; }
UBool singleLeadMightHaveNonZeroFCD16(UChar32 lead) const {
uint8_t bits=smallFCD[lead>>8];
if(bits==0) { return false; }
return (UBool)((bits>>((lead>>5)&7))&1);
}
uint16_t getFCD16FromNormData(UChar32 c) const;
void makeCanonIterDataFromNorm16(UChar32 start, UChar32 end, uint16_t norm16,
CanonIterData &newData, UErrorCode &errorCode) const;
const UChar *getDecomposition(UChar32 c, UChar buffer[4], int32_t &length) const;
const UChar *getRawDecomposition(UChar32 c, UChar buffer[30], int32_t &length) const;
UChar32 composePair(UChar32 a, UChar32 b) const;
UBool isCanonSegmentStarter(UChar32 c) const;
UBool getCanonStartSet(UChar32 c, UnicodeSet &set) const;
enum {
MIN_CCC_LCCC_CP=0x300
};
enum {
MIN_YES_YES_WITH_CC=0xff01,
JAMO_VT=0xff00,
MIN_NORMAL_MAYBE_YES=0xfe00,
JAMO_L=1,
MAX_DELTA=0x40
};
enum {
IX_NORM_TRIE_OFFSET,
IX_EXTRA_DATA_OFFSET,
IX_SMALL_FCD_OFFSET,
IX_RESERVED3_OFFSET,
IX_RESERVED4_OFFSET,
IX_RESERVED5_OFFSET,
IX_RESERVED6_OFFSET,
IX_TOTAL_SIZE,
IX_MIN_DECOMP_NO_CP,
IX_MIN_COMP_NO_MAYBE_CP,
IX_MIN_YES_NO, IX_MIN_NO_NO,
IX_LIMIT_NO_NO,
IX_MIN_MAYBE_YES,
IX_MIN_YES_NO_MAPPINGS_ONLY,
IX_RESERVED15,
IX_COUNT
};
enum {
MAPPING_HAS_CCC_LCCC_WORD=0x80,
MAPPING_HAS_RAW_MAPPING=0x40,
MAPPING_NO_COMP_BOUNDARY_AFTER=0x20,
MAPPING_LENGTH_MASK=0x1f
};
enum {
COMP_1_LAST_TUPLE=0x8000,
COMP_1_TRIPLE=1,
COMP_1_TRAIL_LIMIT=0x3400,
COMP_1_TRAIL_MASK=0x7ffe,
COMP_1_TRAIL_SHIFT=9, COMP_2_TRAIL_SHIFT=6,
COMP_2_TRAIL_MASK=0xffc0
};
const UChar *decompose(const UChar *src, const UChar *limit,
ReorderingBuffer *buffer, UErrorCode &errorCode) const;
void decomposeAndAppend(const UChar *src, const UChar *limit,
UBool doDecompose,
UnicodeString &safeMiddle,
ReorderingBuffer &buffer,
UErrorCode &errorCode) const;
UBool compose(const UChar *src, const UChar *limit,
UBool onlyContiguous,
UBool doCompose,
ReorderingBuffer &buffer,
UErrorCode &errorCode) const;
const UChar *composeQuickCheck(const UChar *src, const UChar *limit,
UBool onlyContiguous,
UNormalizationCheckResult *pQCResult) const;
void composeAndAppend(const UChar *src, const UChar *limit,
UBool doCompose,
UBool onlyContiguous,
UnicodeString &safeMiddle,
ReorderingBuffer &buffer,
UErrorCode &errorCode) const;
const UChar *makeFCD(const UChar *src, const UChar *limit,
ReorderingBuffer *buffer, UErrorCode &errorCode) const;
void makeFCDAndAppend(const UChar *src, const UChar *limit,
UBool doMakeFCD,
UnicodeString &safeMiddle,
ReorderingBuffer &buffer,
UErrorCode &errorCode) const;
UBool hasDecompBoundary(UChar32 c, UBool before) const;
UBool isDecompInert(UChar32 c) const { return isDecompYesAndZeroCC(getNorm16(c)); }
UBool hasCompBoundaryBefore(UChar32 c) const {
return c<minCompNoMaybeCP || hasCompBoundaryBefore(c, getNorm16(c));
}
UBool hasCompBoundaryAfter(UChar32 c, UBool onlyContiguous, UBool testInert) const;
UBool hasFCDBoundaryBefore(UChar32 c) const { return c<MIN_CCC_LCCC_CP || getFCD16(c)<=0xff; }
UBool hasFCDBoundaryAfter(UChar32 c) const {
uint16_t fcd16=getFCD16(c);
return fcd16<=1 || (fcd16&0xff)==0;
}
UBool isFCDInert(UChar32 c) const { return getFCD16(c)<=1; }
private:
static UBool U_CALLCONV
isAcceptable(void *context, const char *type, const char *name, const UDataInfo *pInfo);
UBool isMaybe(uint16_t norm16) const { return minMaybeYes<=norm16 && norm16<=JAMO_VT; }
UBool isMaybeOrNonZeroCC(uint16_t norm16) const { return norm16>=minMaybeYes; }
static UBool isInert(uint16_t norm16) { return norm16==0; }
static UBool isJamoL(uint16_t norm16) { return norm16==1; }
static UBool isJamoVT(uint16_t norm16) { return norm16==JAMO_VT; }
UBool isHangul(uint16_t norm16) const { return norm16==minYesNo; }
UBool isCompYesAndZeroCC(uint16_t norm16) const { return norm16<minNoNo; }
UBool isDecompYesAndZeroCC(uint16_t norm16) const {
return norm16<minYesNo ||
norm16==JAMO_VT ||
(minMaybeYes<=norm16 && norm16<=MIN_NORMAL_MAYBE_YES);
}
UBool isMostDecompYesAndZeroCC(uint16_t norm16) const {
return norm16<minYesNo || norm16==MIN_NORMAL_MAYBE_YES || norm16==JAMO_VT;
}
UBool isDecompNoAlgorithmic(uint16_t norm16) const { return norm16>=limitNoNo; }
uint8_t getCCFromNoNo(uint16_t norm16) const {
const uint16_t *mapping=getMapping(norm16);
if(*mapping&MAPPING_HAS_CCC_LCCC_WORD) {
return (uint8_t)*(mapping-1);
} else {
return 0;
}
}
uint8_t getTrailCCFromCompYesAndZeroCC(const UChar *cpStart, const UChar *cpLimit) const;
UChar32 mapAlgorithmic(UChar32 c, uint16_t norm16) const {
return c+norm16-(minMaybeYes-MAX_DELTA-1);
}
const uint16_t *getMapping(uint16_t norm16) const { return extraData+norm16; }
const uint16_t *getCompositionsListForDecompYes(uint16_t norm16) const {
if(norm16==0 || MIN_NORMAL_MAYBE_YES<=norm16) {
return NULL;
} else if(norm16<minMaybeYes) {
return extraData+norm16; } else {
return maybeYesCompositions+norm16-minMaybeYes;
}
}
const uint16_t *getCompositionsListForComposite(uint16_t norm16) const {
const uint16_t *list=extraData+norm16; return list+ 1+ (*list&MAPPING_LENGTH_MASK); }
const uint16_t *getCompositionsList(uint16_t norm16) const {
return isDecompYes(norm16) ?
getCompositionsListForDecompYes(norm16) :
getCompositionsListForComposite(norm16);
}
const UChar *copyLowPrefixFromNulTerminated(const UChar *src,
UChar32 minNeedDataCP,
ReorderingBuffer *buffer,
UErrorCode &errorCode) const;
UBool decomposeShort(const UChar *src, const UChar *limit,
ReorderingBuffer &buffer, UErrorCode &errorCode) const;
UBool decompose(UChar32 c, uint16_t norm16,
ReorderingBuffer &buffer, UErrorCode &errorCode) const;
static int32_t combine(const uint16_t *list, UChar32 trail);
void addComposites(const uint16_t *list, UnicodeSet &set) const;
void recompose(ReorderingBuffer &buffer, int32_t recomposeStartIndex,
UBool onlyContiguous) const;
UBool hasCompBoundaryBefore(UChar32 c, uint16_t norm16) const;
const UChar *findPreviousCompBoundary(const UChar *start, const UChar *p) const;
const UChar *findNextCompBoundary(const UChar *p, const UChar *limit) const;
const UChar *findPreviousFCDBoundary(const UChar *start, const UChar *p) const;
const UChar *findNextFCDBoundary(const UChar *p, const UChar *limit) const;
int32_t getCanonValue(UChar32 c) const;
const UnicodeSet &getCanonStartSet(int32_t n) const;
UDataMemory *memory;
UVersionInfo dataVersion;
UChar32 minDecompNoCP;
UChar32 minCompNoMaybeCP;
uint16_t minYesNo;
uint16_t minYesNoMappingsOnly;
uint16_t minNoNo;
uint16_t limitNoNo;
uint16_t minMaybeYes;
UTrie2 *normTrie;
const uint16_t *maybeYesCompositions;
const uint16_t *extraData; const uint8_t *smallFCD; uint8_t tccc180[0x180];
SimpleSingleton canonIterDataSingleton;
};
#define CANON_NOT_SEGMENT_STARTER 0x80000000
#define CANON_HAS_COMPOSITIONS 0x40000000
#define CANON_HAS_SET 0x200000
#define CANON_VALUE_MASK 0x1fffff
class U_COMMON_API Normalizer2Factory {
public:
static const Normalizer2 *getNFCInstance(UErrorCode &errorCode);
static const Normalizer2 *getNFDInstance(UErrorCode &errorCode);
static const Normalizer2 *getFCDInstance(UErrorCode &errorCode);
static const Normalizer2 *getFCCInstance(UErrorCode &errorCode);
static const Normalizer2 *getNFKCInstance(UErrorCode &errorCode);
static const Normalizer2 *getNFKDInstance(UErrorCode &errorCode);
static const Normalizer2 *getNFKC_CFInstance(UErrorCode &errorCode);
static const Normalizer2 *getNoopInstance(UErrorCode &errorCode);
static const Normalizer2 *getInstance(UNormalizationMode mode, UErrorCode &errorCode);
static const Normalizer2Impl *getNFCImpl(UErrorCode &errorCode);
static const Normalizer2Impl *getNFKCImpl(UErrorCode &errorCode);
static const Normalizer2Impl *getNFKC_CFImpl(UErrorCode &errorCode);
static const Normalizer2Impl *getImpl(const Normalizer2 *norm2);
private:
Normalizer2Factory(); };
U_NAMESPACE_END
U_CAPI int32_t U_EXPORT2
unorm2_swap(const UDataSwapper *ds,
const void *inData, int32_t length, void *outData,
UErrorCode *pErrorCode);
U_CFUNC UNormalizationCheckResult
unorm_getQuickCheck(UChar32 c, UNormalizationMode mode);
U_CFUNC uint16_t
unorm_getFCD16(UChar32 c);
#endif
#endif