brkiter.cpp | Explore in Territory

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1997-2015, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*
* File brkiter.cpp
*
* Modification History:
*
*   Date        Name        Description
*   02/18/97    aliu        Converted from OpenClass.  Added DONE.
*   01/13/2000  helena      Added UErrorCode parameter to createXXXInstance methods.
*****************************************************************************************
*/

// *****************************************************************************
// This file was generated from the java source file BreakIterator.java
// *****************************************************************************

#include "unicode/utypes.h"

#if !UCONFIG_NO_BREAK_ITERATION

#include "unicode/rbbi.h"
#include "unicode/brkiter.h"
#include "unicode/udata.h"
#include "unicode/uloc.h"
#include "unicode/ures.h"
#include "unicode/ustring.h"
#include "unicode/filteredbrk.h"
#include "bytesinkutil.h"
#include "ucln_cmn.h"
#include "cstring.h"
#include "umutex.h"
#include "servloc.h"
#include "locbased.h"
#include "uresimp.h"
#include "uassert.h"
#include "ubrkimpl.h"
#include "utracimp.h"
#include "charstr.h"

// *****************************************************************************
// class BreakIterator
// This class implements methods for finding the location of boundaries in text.
// Instances of BreakIterator maintain a current position and scan over text
// returning the index of characters where boundaries occur.
// *****************************************************************************

U_NAMESPACE_BEGIN

// -------------------------------------

BreakIterator*
BreakIterator::buildInstance(const Locale& loc, const char *type, UErrorCode &status)
{ … }

// Creates a break iterator for word breaks.
BreakIterator* U_EXPORT2
BreakIterator::createWordInstance(const Locale& key, UErrorCode& status)
{ … }

// -------------------------------------

// Creates a break iterator  for line breaks.
BreakIterator* U_EXPORT2
BreakIterator::createLineInstance(const Locale& key, UErrorCode& status)
{ … }

// -------------------------------------

// Creates a break iterator  for character breaks.
BreakIterator* U_EXPORT2
BreakIterator::createCharacterInstance(const Locale& key, UErrorCode& status)
{ … }

// -------------------------------------

// Creates a break iterator  for sentence breaks.
BreakIterator* U_EXPORT2
BreakIterator::createSentenceInstance(const Locale& key, UErrorCode& status)
{ … }

// -------------------------------------

// Creates a break iterator for title casing breaks.
BreakIterator* U_EXPORT2
BreakIterator::createTitleInstance(const Locale& key, UErrorCode& status)
{ … }

// -------------------------------------

// Gets all the available locales that has localized text boundary data.
const Locale* U_EXPORT2
BreakIterator::getAvailableLocales(int32_t& count)
{ … }

// ------------------------------------------
//
// Constructors, destructor and assignment operator
//
//-------------------------------------------

BreakIterator::BreakIterator()
{ … }

BreakIterator::BreakIterator(const BreakIterator &other) : … { … }

BreakIterator &BreakIterator::operator =(const BreakIterator &other) { … }

BreakIterator::~BreakIterator()
{ … }

// ------------------------------------------
//
// Registration
//
//-------------------------------------------
#if !UCONFIG_NO_SERVICE

// -------------------------------------

class ICUBreakIteratorFactory : public ICUResourceBundleFactory {
public:
    virtual ~ICUBreakIteratorFactory();
protected:
    virtual UObject* handleCreate(const Locale& loc, int32_t kind, const ICUService* /*service*/, UErrorCode& status) const override {
        return BreakIterator::makeInstance(loc, kind, status);
    }
};

ICUBreakIteratorFactory::~ICUBreakIteratorFactory() {}

// -------------------------------------

class ICUBreakIteratorService : public ICULocaleService {
public:
    ICUBreakIteratorService()
        : ICULocaleService(UNICODE_STRING("Break Iterator", 14))
    {
        UErrorCode status = U_ZERO_ERROR;
        registerFactory(new ICUBreakIteratorFactory(), status);
    }

    virtual ~ICUBreakIteratorService();

    virtual UObject* cloneInstance(UObject* instance) const override {
        return ((BreakIterator*)instance)->clone();
    }

    virtual UObject* handleDefault(const ICUServiceKey& key, UnicodeString* /*actualID*/, UErrorCode& status) const override {
        LocaleKey& lkey = static_cast<LocaleKey&>(const_cast<ICUServiceKey&>(key));
        int32_t kind = lkey.kind();
        Locale loc;
        lkey.currentLocale(loc);
        return BreakIterator::makeInstance(loc, kind, status);
    }

    virtual UBool isDefault() const override {
        return countFactories() == 1;
    }
};

ICUBreakIteratorService::~ICUBreakIteratorService() {}

// -------------------------------------

// defined in ucln_cmn.h
U_NAMESPACE_END

static icu::UInitOnce gInitOnceBrkiter {};
static icu::ICULocaleService* gService = nullptr;



/**
 * Release all static memory held by breakiterator.
 */
U_CDECL_BEGIN
static UBool U_CALLCONV breakiterator_cleanup() {
#if !UCONFIG_NO_SERVICE
    if (gService) {
        delete gService;
        gService = nullptr;
    }
    gInitOnceBrkiter.reset();
#endif
    return true;
}
U_CDECL_END
U_NAMESPACE_BEGIN

static void U_CALLCONV 
initService() {
    gService = new ICUBreakIteratorService();
    ucln_common_registerCleanup(UCLN_COMMON_BREAKITERATOR, breakiterator_cleanup);
}

static ICULocaleService*
getService()
{
    umtx_initOnce(gInitOnceBrkiter, &initService);
    return gService;
}


// -------------------------------------

static inline UBool
hasService()
{
    return !gInitOnceBrkiter.isReset() && getService() != nullptr;
}

// -------------------------------------

URegistryKey U_EXPORT2
BreakIterator::registerInstance(BreakIterator* toAdopt, const Locale& locale, UBreakIteratorType kind, UErrorCode& status)
{
    ICULocaleService *service = getService();
    if (service == nullptr) {
        status = U_MEMORY_ALLOCATION_ERROR;
        return nullptr;
    }
    return service->registerInstance(toAdopt, locale, kind, status);
}

// -------------------------------------

UBool U_EXPORT2
BreakIterator::unregister(URegistryKey key, UErrorCode& status)
{
    if (U_SUCCESS(status)) {
        if (hasService()) {
            return gService->unregister(key, status);
        }
        status = U_MEMORY_ALLOCATION_ERROR;
    }
    return false;
}

// -------------------------------------

StringEnumeration* U_EXPORT2
BreakIterator::getAvailableLocales()
{
    ICULocaleService *service = getService();
    if (service == nullptr) {
        return nullptr;
    }
    return service->getAvailableLocales();
}
#endif /* UCONFIG_NO_SERVICE */

// -------------------------------------

BreakIterator*
BreakIterator::createInstance(const Locale& loc, int32_t kind, UErrorCode& status)
{ … }

// -------------------------------------
enum { … };

BreakIterator*
BreakIterator::makeInstance(const Locale& loc, int32_t kind, UErrorCode& status)
{ … }

Locale
BreakIterator::getLocale(ULocDataLocaleType type, UErrorCode& status) const { … }

const char *
BreakIterator::getLocaleID(ULocDataLocaleType type, UErrorCode& status) const { … }


// This implementation of getRuleStatus is a do-nothing stub, here to
// provide a default implementation for any derived BreakIterator classes that
// do not implement it themselves.
int32_t BreakIterator::getRuleStatus() const { … }

// This implementation of getRuleStatusVec is a do-nothing stub, here to
// provide a default implementation for any derived BreakIterator classes that
// do not implement it themselves.
int32_t BreakIterator::getRuleStatusVec(int32_t *fillInVec, int32_t capacity, UErrorCode &status) { … }

BreakIterator::BreakIterator (const Locale& valid, const Locale& actual) { … }

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_BREAK_ITERATION */

//eof
godot/thirdparty/icu4c/common/brkiter.cpp
