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// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (c) 2002-2011, International Business Machines Corporation
* and others. All Rights Reserved.
**********************************************************************
* Date Name Description
* 02/04/2002 aliu Creation.
**********************************************************************
*/
#ifndef FUNCREPL_H
#define FUNCREPL_H
#include "unicode/utypes.h"
#if !UCONFIG_NO_TRANSLITERATION
#include "unicode/unifunct.h"
#include "unicode/unirepl.h"
U_NAMESPACE_BEGIN
class Transliterator;
/**
* A replacer that calls a transliterator to generate its output text.
* The input text to the transliterator is the output of another
* UnicodeReplacer object. That is, this replacer wraps another
* replacer with a transliterator.
*
* @author Alan Liu
*/
class FunctionReplacer : public UnicodeFunctor, public UnicodeReplacer {
private:
/**
* The transliterator. Must not be null. OWNED.
*/
Transliterator* translit;
/**
* The replacer object. This generates text that is then
* processed by 'translit'. Must not be null. OWNED.
*/
UnicodeFunctor* replacer;
public:
/**
* Construct a replacer that takes the output of the given
* replacer, passes it through the given transliterator, and emits
* the result as output.
*/
FunctionReplacer(Transliterator* adoptedTranslit,
UnicodeFunctor* adoptedReplacer);
/**
* Copy constructor.
*/
FunctionReplacer(const FunctionReplacer& other);
/**
* Destructor
*/
virtual ~FunctionReplacer();
/**
* Implement UnicodeFunctor
*/
virtual UnicodeFunctor* clone() const;
/**
* UnicodeFunctor API. Cast 'this' to a UnicodeReplacer* pointer
* and return the pointer.
*/
virtual UnicodeReplacer* toReplacer() const;
/**
* UnicodeReplacer API
*/
virtual int32_t replace(Replaceable& text,
int32_t start,
int32_t limit,
int32_t& cursor);
/**
* UnicodeReplacer API
*/
virtual UnicodeString& toReplacerPattern(UnicodeString& rule,
UBool escapeUnprintable) const;
/**
* Implement UnicodeReplacer
*/
virtual void addReplacementSetTo(UnicodeSet& toUnionTo) const;
/**
* UnicodeFunctor API
*/
virtual void setData(const TransliterationRuleData*);
/**
* ICU "poor man's RTTI", returns a UClassID for the actual class.
*/
virtual UClassID getDynamicClassID() const;
/**
* ICU "poor man's RTTI", returns a UClassID for this class.
*/
static UClassID U_EXPORT2 getStaticClassID();
};
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_TRANSLITERATION */
#endif
//eof
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