projects / apple / icu.git / blame
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|---|---|---|
| 57a6839d A |
1 | /* |
| 2 | ******************************************************************************* | |
| 3 | * Copyright (C) 2013-2014, International Business Machines | |
| 4 | * Corporation and others. All Rights Reserved. | |
| 5 | ******************************************************************************* | |
| 6 | * collationfastlatinbuilder.h | |
| 7 | * | |
| 8 | * created on: 2013aug09 | |
| 9 | * created by: Markus W. Scherer | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __COLLATIONFASTLATINBUILDER_H__ | |
| 13 | #define __COLLATIONFASTLATINBUILDER_H__ | |
| 14 | ||
| 15 | #include "unicode/utypes.h" | |
| 16 | ||
| 17 | #if !UCONFIG_NO_COLLATION | |
| 18 | ||
| 19 | #include "unicode/unistr.h" | |
| 20 | #include "unicode/uobject.h" | |
| 21 | #include "collation.h" | |
| 22 | #include "collationfastlatin.h" | |
| 23 | #include "uvectr64.h" | |
| 24 | ||
| 25 | U_NAMESPACE_BEGIN | |
| 26 | ||
| 27 | struct CollationData; | |
| 28 | ||
| 29 | class U_I18N_API CollationFastLatinBuilder : public UObject { | |
| 30 | public: | |
| 31 | CollationFastLatinBuilder(UErrorCode &errorCode); | |
| 32 | ~CollationFastLatinBuilder(); | |
| 33 | ||
| 34 | UBool forData(const CollationData &data, UErrorCode &errorCode); | |
| 35 | ||
| 36 | const uint16_t *getTable() const { | |
| 37 | return reinterpret_cast<const uint16_t *>(result.getBuffer()); | |
| 38 | } | |
| 39 | int32_t lengthOfTable() const { return result.length(); } | |
| 40 | ||
| 41 | private: | |
| 42 | UBool loadGroups(const CollationData &data, UErrorCode &errorCode); | |
| 43 | UBool inSameGroup(uint32_t p, uint32_t q) const; | |
| 44 | ||
| 45 | void resetCEs(); | |
| 46 | void getCEs(const CollationData &data, UErrorCode &errorCode); | |
| 47 | UBool getCEsFromCE32(const CollationData &data, UChar32 c, uint32_t ce32, | |
| 48 | UErrorCode &errorCode); | |
| 49 | UBool getCEsFromContractionCE32(const CollationData &data, uint32_t ce32, | |
| 50 | UErrorCode &errorCode); | |
| 51 | void addContractionEntry(int32_t x, int64_t cce0, int64_t cce1, UErrorCode &errorCode); | |
| 52 | void addUniqueCE(int64_t ce, UErrorCode &errorCode); | |
| 53 | uint32_t getMiniCE(int64_t ce) const; | |
| 54 | UBool encodeUniqueCEs(UErrorCode &errorCode); | |
| 55 | UBool encodeCharCEs(UErrorCode &errorCode); | |
| 56 | UBool encodeContractions(UErrorCode &errorCode); | |
| 57 | uint32_t encodeTwoCEs(int64_t first, int64_t second) const; | |
| 58 | ||
| 59 | static UBool isContractionCharCE(int64_t ce) { | |
| 60 | return (uint32_t)(ce >> 32) == Collation::NO_CE_PRIMARY && ce != Collation::NO_CE; | |
| 61 | } | |
| 62 | ||
| 63 | static const uint32_t CONTRACTION_FLAG = 0x80000000; | |
| 64 | ||
| 65 | // temporary "buffer" | |
| 66 | int64_t ce0, ce1; | |
| 67 | ||
| 68 | int64_t charCEs[CollationFastLatin::NUM_FAST_CHARS][2]; | |
| 69 | ||
| 70 | UVector64 contractionCEs; | |
| 71 | UVector64 uniqueCEs; | |
| 72 | ||
| 73 | /** One 16-bit mini CE per unique CE. */ | |
| 74 | uint16_t *miniCEs; | |
| 75 | ||
| 76 | // These are constant for a given list of CollationData.scripts. | |
| 77 | uint32_t firstDigitPrimary; | |
| 78 | uint32_t firstLatinPrimary; | |
| 79 | uint32_t lastLatinPrimary; | |
| 80 | // This determines the first normal primary weight which is mapped to | |
| 81 | // a short mini primary. It must be >=firstDigitPrimary. | |
| 82 | uint32_t firstShortPrimary; | |
| 83 | ||
| 84 | UBool shortPrimaryOverflow; | |
| 85 | ||
| 86 | UnicodeString result; | |
| 87 | int32_t headerLength; | |
| 88 | }; | |
| 89 | ||
| 90 | U_NAMESPACE_END | |
| 91 | ||
| 92 | #endif // !UCONFIG_NO_COLLATION | |
| 93 | #endif // __COLLATIONFASTLATINBUILDER_H__ |