colldata.h

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/*
 ******************************************************************************
 *   Copyright (C) 1996-2012, International Business Machines                 *
 *   Corporation and others.  All Rights Reserved.                            *
 ******************************************************************************
 */

 
#ifndef COLL_DATA_H
#define COLL_DATA_H
 
#include "unicode/utypes.h"
 
#if !UCONFIG_NO_COLLATION
 
#include "unicode/uobject.h"
#include "unicode/ucol.h"
 
U_NAMESPACE_BEGIN
 
#ifndef U_HIDE_INTERNAL_API
#define KEY_BUFFER_SIZE 64

#define CELIST_BUFFER_SIZE 4

//#define INSTRUMENT_CELIST

#define STRING_LIST_BUFFER_SIZE 16

//#define INSTRUMENT_STRING_LIST

class U_I18N_API CEList : public UObject
{
public:
    CEList(UCollator *coll, const UnicodeString &string, UErrorCode &status);

    ~CEList();

    int32_t size() const;

    uint32_t get(int32_t index) const;

    UBool matchesAt(int32_t offset, const CEList *other) const; 

    uint32_t &operator[](int32_t index) const;

    virtual UClassID getDynamicClassID() const;
    static UClassID getStaticClassID();
 
private:
    void add(uint32_t ce, UErrorCode &status);
 
    uint32_t ceBuffer[CELIST_BUFFER_SIZE];
    uint32_t *ces;
    int32_t listMax;
    int32_t listSize;
 
#ifdef INSTRUMENT_CELIST
    static int32_t _active;
    static int32_t _histogram[10];
#endif
};

class U_I18N_API StringList : public UObject
{
public:
    StringList(UErrorCode &status);

    ~StringList();

    void add(const UnicodeString *string, UErrorCode &status);

    void add(const UChar *chars, int32_t count, UErrorCode &status);

    const UnicodeString *get(int32_t index) const;

    int32_t size() const;

    virtual UClassID getDynamicClassID() const;
    static UClassID getStaticClassID();
 
private:
    UnicodeString *strings;
    int32_t listMax;
    int32_t listSize;
 
#ifdef INSTRUMENT_STRING_LIST
    static int32_t _lists;
    static int32_t _strings;
    static int32_t _histogram[101];
#endif
};
#endif  /* U_HIDE_INTERNAL_API */
 
/*
 * Forward references to internal classes.
 */
class StringToCEsMap;
class CEToStringsMap;
class CollDataCache;
 
#ifndef U_HIDE_INTERNAL_API
class U_I18N_API CollData : public UObject
{
public:
    static CollData *open(UCollator *collator, UErrorCode &status);

    static void close(CollData *collData);

    UCollator *getCollator() const;

    const StringList *getStringList(int32_t ce) const;

    const CEList *getCEList(const UnicodeString *string) const;

    void freeCEList(const CEList *list);

    int32_t minLengthInChars(const CEList *ces, int32_t offset) const;
 
 
   int32_t minLengthInChars(const CEList *ces, int32_t offset, int32_t *history) const;

    virtual UClassID getDynamicClassID() const;
    static UClassID getStaticClassID();

    static void freeCollDataCache();

    static void flushCollDataCache();
 
private:
    friend class CollDataCache;
    friend class CollDataCacheEntry;
 
    CollData(UCollator *collator, char *cacheKey, int32_t cachekeyLength, UErrorCode &status);
    ~CollData();
 
    CollData();
 
    static char *getCollatorKey(UCollator *collator, char *buffer, int32_t bufferLength);
 
    static CollDataCache *getCollDataCache();
 
    UCollator      *coll;
    StringToCEsMap *charsToCEList;
    CEToStringsMap *ceToCharsStartingWith;
 
    char keyBuffer[KEY_BUFFER_SIZE];
    char *key;
 
    static CollDataCache *collDataCache;
 
    uint32_t minHan;
    uint32_t maxHan;
 
    uint32_t jamoLimits[4];
};
#endif  /* U_HIDE_INTERNAL_API */
 
U_NAMESPACE_END
 
#endif // #if !UCONFIG_NO_COLLATION
#endif // #ifndef COLL_DATA_H