101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2013-2016, International Business Machines
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* Corporation and others. All Rights Reserved.
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*******************************************************************************
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* collationfastlatinbuilder.h
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*
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* created on: 2013aug09
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* created by: Markus W. Scherer
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*/
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#ifndef __COLLATIONFASTLATINBUILDER_H__
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#define __COLLATIONFASTLATINBUILDER_H__
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_COLLATION
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#include "unicode/ucol.h"
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#include "unicode/unistr.h"
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#include "unicode/uobject.h"
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#include "collation.h"
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#include "collationfastlatin.h"
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#include "uvectr64.h"
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U_NAMESPACE_BEGIN
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struct CollationData;
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class U_I18N_API CollationFastLatinBuilder : public UObject {
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public:
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CollationFastLatinBuilder(UErrorCode &errorCode);
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~CollationFastLatinBuilder();
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UBool forData(const CollationData &data, UErrorCode &errorCode);
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const uint16_t *getTable() const {
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return reinterpret_cast<const uint16_t *>(result.getBuffer());
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}
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int32_t lengthOfTable() const { return result.length(); }
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private:
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// space, punct, symbol, currency (not digit)
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enum { NUM_SPECIAL_GROUPS = UCOL_REORDER_CODE_CURRENCY - UCOL_REORDER_CODE_FIRST + 1 };
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UBool loadGroups(const CollationData &data, UErrorCode &errorCode);
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UBool inSameGroup(uint32_t p, uint32_t q) const;
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void resetCEs();
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void getCEs(const CollationData &data, UErrorCode &errorCode);
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UBool getCEsFromCE32(const CollationData &data, UChar32 c, uint32_t ce32,
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UErrorCode &errorCode);
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UBool getCEsFromContractionCE32(const CollationData &data, uint32_t ce32,
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UErrorCode &errorCode);
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void addContractionEntry(int32_t x, int64_t cce0, int64_t cce1, UErrorCode &errorCode);
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void addUniqueCE(int64_t ce, UErrorCode &errorCode);
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uint32_t getMiniCE(int64_t ce) const;
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UBool encodeUniqueCEs(UErrorCode &errorCode);
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UBool encodeCharCEs(UErrorCode &errorCode);
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UBool encodeContractions(UErrorCode &errorCode);
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uint32_t encodeTwoCEs(int64_t first, int64_t second) const;
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static UBool isContractionCharCE(int64_t ce) {
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return (uint32_t)(ce >> 32) == Collation::NO_CE_PRIMARY && ce != Collation::NO_CE;
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}
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static const uint32_t CONTRACTION_FLAG = 0x80000000;
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// temporary "buffer"
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int64_t ce0, ce1;
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int64_t charCEs[CollationFastLatin::NUM_FAST_CHARS][2];
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UVector64 contractionCEs;
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UVector64 uniqueCEs;
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/** One 16-bit mini CE per unique CE. */
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uint16_t *miniCEs;
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// These are constant for a given root collator.
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uint32_t lastSpecialPrimaries[NUM_SPECIAL_GROUPS];
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uint32_t firstDigitPrimary;
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uint32_t firstLatinPrimary;
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uint32_t lastLatinPrimary;
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// This determines the first normal primary weight which is mapped to
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// a short mini primary. It must be >=firstDigitPrimary.
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uint32_t firstShortPrimary;
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UBool shortPrimaryOverflow;
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UnicodeString result;
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int32_t headerLength;
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};
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U_NAMESPACE_END
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#endif // !UCONFIG_NO_COLLATION
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#endif // __COLLATIONFASTLATINBUILDER_H__
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