projects / apple / icu.git / blame
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|---|---|---|
| 57a6839d A |
1 | /* |
| 2 | ******************************************************************************* | |
| 3 | * Copyright (C) 2012-2014, International Business Machines | |
| 4 | * Corporation and others. All Rights Reserved. | |
| 5 | ******************************************************************************* | |
| 6 | * collationbasedatabuilder.h | |
| 7 | * | |
| 8 | * created on: 2012aug11 | |
| 9 | * created by: Markus W. Scherer | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __COLLATIONBASEDATABUILDER_H__ | |
| 13 | #define __COLLATIONBASEDATABUILDER_H__ | |
| 14 | ||
| 15 | #include "unicode/utypes.h" | |
| 16 | ||
| 17 | #if !UCONFIG_NO_COLLATION | |
| 18 | ||
| 19 | #include "unicode/uniset.h" | |
| 20 | #include "unicode/unistr.h" | |
| 21 | #include "collation.h" | |
| 22 | #include "collationdata.h" | |
| 23 | #include "collationdatabuilder.h" | |
| 24 | #include "normalizer2impl.h" | |
| 25 | #include "utrie2.h" | |
| 26 | #include "uvectr32.h" | |
| 27 | #include "uvectr64.h" | |
| 28 | #include "uvector.h" | |
| 29 | ||
| 30 | U_NAMESPACE_BEGIN | |
| 31 | ||
| 32 | /** | |
| 33 | * Low-level base CollationData builder. | |
| 34 | */ | |
| 35 | class U_I18N_API CollationBaseDataBuilder : public CollationDataBuilder { | |
| 36 | public: | |
| 37 | CollationBaseDataBuilder(UErrorCode &errorCode); | |
| 38 | ||
| 39 | virtual ~CollationBaseDataBuilder(); | |
| 40 | ||
| 41 | void init(UErrorCode &errorCode); | |
| 42 | ||
| 43 | /** | |
| 44 | * Sets the Han ranges as ranges of offset CE32s. | |
| 45 | * Note: Unihan extension A sorts after the other BMP ranges. | |
| 46 | * See http://www.unicode.org/reports/tr10/#Implicit_Weights | |
| 47 | * | |
| 48 | * @param ranges array of ranges of [:Unified_Ideograph:] in collation order, | |
| 49 | * as (start, end) code point pairs | |
| 50 | * @param length number of code points (not pairs) | |
| 51 | * @param errorCode in/out error code | |
| 52 | */ | |
| 53 | void initHanRanges(const UChar32 ranges[], int32_t length, UErrorCode &errorCode); | |
| 54 | ||
| 55 | void setNumericPrimary(uint32_t np) { numericPrimary = np; } | |
| 56 | ||
| 57 | virtual UBool isCompressibleLeadByte(uint32_t b) const; | |
| 58 | ||
| 59 | void setCompressibleLeadByte(uint32_t b); | |
| 60 | ||
| 61 | static int32_t diffTwoBytePrimaries(uint32_t p1, uint32_t p2, UBool isCompressible); | |
| 62 | static int32_t diffThreeBytePrimaries(uint32_t p1, uint32_t p2, UBool isCompressible); | |
| 63 | ||
| 64 | virtual uint32_t encodeCEs(const int64_t ces[], int32_t cesLength, UErrorCode &errorCode); | |
| 65 | ||
| 66 | void addRootElements(const int64_t ces[], int32_t cesLength, UErrorCode &errorCode); | |
| 67 | void addRootElement(int64_t ce, UErrorCode &errorCode); | |
| 68 | ||
| 69 | void addReorderingGroup(uint32_t firstByte, uint32_t lastByte, | |
| 70 | const UnicodeString &groupScripts, | |
| 71 | UErrorCode &errorCode); | |
| 72 | ||
| 73 | virtual void build(CollationData &data, UErrorCode &errorCode); | |
| 74 | ||
| 75 | void buildRootElementsTable(UVector32 &table, UErrorCode &errorCode); | |
| 76 | ||
| 77 | private: | |
| 78 | int32_t writeRootElementsRange( | |
| 79 | uint32_t prevPrimary, uint32_t p, int32_t i, | |
| 80 | UVector32 &table, UErrorCode &errorCode); | |
| 81 | ||
| 82 | // Flags for which primary-weight lead bytes are compressible. | |
| 83 | UBool compressibleBytes[256]; | |
| 84 | uint32_t numericPrimary; | |
| 85 | uint32_t firstHanPrimary; | |
| 86 | uint32_t lastHanPrimary; | |
| 87 | int32_t hanStep; | |
| 88 | UVector64 rootElements; | |
| 89 | UnicodeString scripts; | |
| 90 | }; | |
| 91 | ||
| 92 | U_NAMESPACE_END | |
| 93 | ||
| 94 | #endif // !UCONFIG_NO_COLLATION | |
| 95 | #endif // __COLLATIONBASEDATABUILDER_H__ |