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