1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * Copyright (C) 2013-2016, International Business Machines 6 * Corporation and others. All Rights Reserved. 7 ******************************************************************************* 8 * collationfastlatinbuilder.h 9 * 10 * created on: 2013aug09 11 * created by: Markus W. Scherer 12 */ 13 14 #ifndef __COLLATIONFASTLATINBUILDER_H__ 15 #define __COLLATIONFASTLATINBUILDER_H__ 16 17 #include "unicode/utypes.h" 18 19 #if !UCONFIG_NO_COLLATION 20 21 #include "unicode/ucol.h" 22 #include "unicode/unistr.h" 23 #include "unicode/uobject.h" 24 #include "collation.h" 25 #include "collationfastlatin.h" 26 #include "uvectr64.h" 27 28 U_NAMESPACE_BEGIN 29 30 struct CollationData; 31 32 class U_I18N_API CollationFastLatinBuilder : public UObject { 33 public: 34 CollationFastLatinBuilder(UErrorCode &errorCode); 35 ~CollationFastLatinBuilder(); 36 37 UBool forData(const CollationData &data, UErrorCode &errorCode); 38 getTable()39 const uint16_t *getTable() const { 40 return reinterpret_cast<const uint16_t *>(result.getBuffer()); 41 } lengthOfTable()42 int32_t lengthOfTable() const { return result.length(); } 43 44 private: 45 // space, punct, symbol, currency (not digit) 46 enum { NUM_SPECIAL_GROUPS = UCOL_REORDER_CODE_CURRENCY - UCOL_REORDER_CODE_FIRST + 1 }; 47 48 UBool loadGroups(const CollationData &data, UErrorCode &errorCode); 49 UBool inSameGroup(uint32_t p, uint32_t q) const; 50 51 void resetCEs(); 52 void getCEs(const CollationData &data, UErrorCode &errorCode); 53 UBool getCEsFromCE32(const CollationData &data, UChar32 c, uint32_t ce32, 54 UErrorCode &errorCode); 55 UBool getCEsFromContractionCE32(const CollationData &data, uint32_t ce32, 56 UErrorCode &errorCode); 57 void addContractionEntry(int32_t x, int64_t cce0, int64_t cce1, UErrorCode &errorCode); 58 void addUniqueCE(int64_t ce, UErrorCode &errorCode); 59 uint32_t getMiniCE(int64_t ce) const; 60 UBool encodeUniqueCEs(UErrorCode &errorCode); 61 UBool encodeCharCEs(UErrorCode &errorCode); 62 UBool encodeContractions(UErrorCode &errorCode); 63 uint32_t encodeTwoCEs(int64_t first, int64_t second) const; 64 isContractionCharCE(int64_t ce)65 static UBool isContractionCharCE(int64_t ce) { 66 return (uint32_t)(ce >> 32) == Collation::NO_CE_PRIMARY && ce != Collation::NO_CE; 67 } 68 69 static const uint32_t CONTRACTION_FLAG = 0x80000000; 70 71 // temporary "buffer" 72 int64_t ce0, ce1; 73 74 int64_t charCEs[CollationFastLatin::NUM_FAST_CHARS][2]; 75 76 UVector64 contractionCEs; 77 UVector64 uniqueCEs; 78 79 /** One 16-bit mini CE per unique CE. */ 80 uint16_t *miniCEs; 81 82 // These are constant for a given root collator. 83 uint32_t lastSpecialPrimaries[NUM_SPECIAL_GROUPS]; 84 uint32_t firstDigitPrimary; 85 uint32_t firstLatinPrimary; 86 uint32_t lastLatinPrimary; 87 // This determines the first normal primary weight which is mapped to 88 // a short mini primary. It must be >=firstDigitPrimary. 89 uint32_t firstShortPrimary; 90 91 UBool shortPrimaryOverflow; 92 93 UnicodeString result; 94 int32_t headerLength; 95 }; 96 97 U_NAMESPACE_END 98 99 #endif // !UCONFIG_NO_COLLATION 100 #endif // __COLLATIONFASTLATINBUILDER_H__ 101