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/*
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**********************************************************************
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* Copyright (c) 2002-2004, International Business Machines
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* Corporation and others. All Rights Reserved.
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**********************************************************************
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* Author: Alan Liu
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* Created: November 11 2002
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* Since: ICU 2.4
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**********************************************************************
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*/
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#ifndef _USTRENUM_H_
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#define _USTRENUM_H_
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#include "unicode/uenum.h"
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#include "unicode/strenum.h"
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/**
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* Given a StringEnumeration, wrap it in a UEnumeration. The
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* StringEnumeration is adopted; after this call, the caller must not
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* delete it (regardless of error status).
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*/
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U_CAPI UEnumeration* U_EXPORT2
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uenum_openStringEnumeration(StringEnumeration* adopted, UErrorCode* ec);
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/**
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* Given an array of const char* strings (invariant chars only),
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* return a UEnumeration. Must have strings[i] != 0 for i in
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* 0..count-1.
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*/
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U_CAPI UEnumeration* U_EXPORT2
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uenum_openCharStringsEnumeration(const char** strings, int32_t count,
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UErrorCode* ec);
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//----------------------------------------------------------------------
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U_NAMESPACE_BEGIN
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/**
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* A wrapper to make a UEnumeration into a StringEnumeration. The
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* wrapper adopts the UEnumeration is wraps.
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*/
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class U_COMMON_API UStringEnumeration : public StringEnumeration {
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public:
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/**
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* Constructor. This constructor adopts its UEnumeration
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* argument.
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* @param uenum a UEnumeration object. This object takes
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* ownership of 'uenum' and will close it in its destructor. The
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* caller must not call uenum_close on 'uenum' after calling this
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* constructor.
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*/
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UStringEnumeration(UEnumeration* uenum);
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/**
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* Destructor. This closes the UEnumeration passed in to the
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* constructor.
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*/
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virtual ~UStringEnumeration();
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/**
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* Return the number of elements that the iterator traverses.
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* @param status the error code.
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* @return number of elements in the iterator.
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*/
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virtual int32_t count(UErrorCode& status) const;
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/**
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* Returns the next element a UnicodeString*. If there are no
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* more elements, returns NULL.
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* @param status the error code.
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* @return a pointer to the string, or NULL.
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*/
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virtual const UnicodeString* snext(UErrorCode& status);
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/**
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* Resets the iterator.
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* @param status the error code.
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*/
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virtual void reset(UErrorCode& status);
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/**
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* ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.
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*/
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virtual UClassID getDynamicClassID() const;
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/**
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* ICU4C "poor man's RTTI", returns a UClassID for this ICU class.
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*/
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static UClassID U_EXPORT2 getStaticClassID();
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private:
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UEnumeration *uenum; // owned
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};
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U_NAMESPACE_END
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#endif
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