projects / apple / icu.git / blame
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|---|---|---|
| 57a6839d A |
1 | /* |
| 2 | ******************************************************************************* | |
| 2ca993e8 | 3 | * Copyright (C) 2013-2016, International Business Machines |
| 57a6839d A |
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 | ||
| 2ca993e8 | 19 | #include "unicode/ucol.h" |
| 57a6839d A |
20 | #include "unicode/unistr.h" |
| 21 | #include "unicode/uobject.h" | |
| 22 | #include "collation.h" | |
| 23 | #include "collationfastlatin.h" | |
| 24 | #include "uvectr64.h" | |
| 25 | ||
| 26 | U_NAMESPACE_BEGIN | |
| 27 | ||
| 28 | struct CollationData; | |
| 29 | ||
| 30 | class U_I18N_API CollationFastLatinBuilder : public UObject { | |
| 31 | public: | |
| 32 | CollationFastLatinBuilder(UErrorCode &errorCode); | |
| 33 | ~CollationFastLatinBuilder(); | |
| 34 | ||
| 35 | UBool forData(const CollationData &data, UErrorCode &errorCode); | |
| 36 | ||
| 37 | const uint16_t *getTable() const { | |
| 38 | return reinterpret_cast<const uint16_t *>(result.getBuffer()); | |
| 39 | } | |
| 40 | int32_t lengthOfTable() const { return result.length(); } | |
| 41 | ||
| 42 | private: | |
| b331163b A |
43 | // space, punct, symbol, currency (not digit) |
| 44 | enum { NUM_SPECIAL_GROUPS = UCOL_REORDER_CODE_CURRENCY - UCOL_REORDER_CODE_FIRST + 1 }; | |
| 45 | ||
| 57a6839d A |
46 | UBool loadGroups(const CollationData &data, UErrorCode &errorCode); |
| 47 | UBool inSameGroup(uint32_t p, uint32_t q) const; | |
| 48 | ||
| 49 | void resetCEs(); | |
| 50 | void getCEs(const CollationData &data, UErrorCode &errorCode); | |
| 51 | UBool getCEsFromCE32(const CollationData &data, UChar32 c, uint32_t ce32, | |
| 52 | UErrorCode &errorCode); | |
| 53 | UBool getCEsFromContractionCE32(const CollationData &data, uint32_t ce32, | |
| 54 | UErrorCode &errorCode); | |
| 55 | void addContractionEntry(int32_t x, int64_t cce0, int64_t cce1, UErrorCode &errorCode); | |
| 56 | void addUniqueCE(int64_t ce, UErrorCode &errorCode); | |
| 57 | uint32_t getMiniCE(int64_t ce) const; | |
| 58 | UBool encodeUniqueCEs(UErrorCode &errorCode); | |
| 59 | UBool encodeCharCEs(UErrorCode &errorCode); | |
| 60 | UBool encodeContractions(UErrorCode &errorCode); | |
| 61 | uint32_t encodeTwoCEs(int64_t first, int64_t second) const; | |
| 62 | ||
| 63 | static UBool isContractionCharCE(int64_t ce) { | |
| 64 | return (uint32_t)(ce >> 32) == Collation::NO_CE_PRIMARY && ce != Collation::NO_CE; | |
| 65 | } | |
| 66 | ||
| 67 | static const uint32_t CONTRACTION_FLAG = 0x80000000; | |
| 68 | ||
| 69 | // temporary "buffer" | |
| 70 | int64_t ce0, ce1; | |
| 71 | ||
| 72 | int64_t charCEs[CollationFastLatin::NUM_FAST_CHARS][2]; | |
| 73 | ||
| 74 | UVector64 contractionCEs; | |
| 75 | UVector64 uniqueCEs; | |
| 76 | ||
| 77 | /** One 16-bit mini CE per unique CE. */ | |
| 78 | uint16_t *miniCEs; | |
| 79 | ||
| b331163b A |
80 | // These are constant for a given root collator. |
| 81 | uint32_t lastSpecialPrimaries[NUM_SPECIAL_GROUPS]; | |
| 57a6839d A |
82 | uint32_t firstDigitPrimary; |
| 83 | uint32_t firstLatinPrimary; | |
| 84 | uint32_t lastLatinPrimary; | |
| 85 | // This determines the first normal primary weight which is mapped to | |
| 86 | // a short mini primary. It must be >=firstDigitPrimary. | |
| 87 | uint32_t firstShortPrimary; | |
| 88 | ||
| 89 | UBool shortPrimaryOverflow; | |
| 90 | ||
| 91 | UnicodeString result; | |
| 92 | int32_t headerLength; | |
| 93 | }; | |
| 94 | ||
| 95 | U_NAMESPACE_END | |
| 96 | ||
| 97 | #endif // !UCONFIG_NO_COLLATION | |
| 98 | #endif // __COLLATIONFASTLATINBUILDER_H__ |