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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (C) 2001-2011, International Business Machines Corporation
* and others. All Rights Reserved.
**********************************************************************
* Date Name Description
* 07/26/01 aliu Creation.
**********************************************************************
*/
#ifndef QUANT_H
#define QUANT_H
#include "unicode/utypes.h"
#if !UCONFIG_NO_TRANSLITERATION
#include "unicode/unifunct.h"
#include "unicode/unimatch.h"
U_NAMESPACE_BEGIN
class Quantifier : public UnicodeFunctor, public UnicodeMatcher {
public:
enum { MAX = 0x7FFFFFFF };
Quantifier(UnicodeFunctor *adoptedMatcher,
uint32_t minCount, uint32_t maxCount);
Quantifier(const Quantifier& o);
virtual ~Quantifier();
/**
* UnicodeFunctor API. Cast 'this' to a UnicodeMatcher* pointer
* and return the pointer.
* @return the UnicodeMatcher pointer.
*/
virtual UnicodeMatcher* toMatcher() const override;
/**
* Implement UnicodeFunctor
* @return a copy of the object.
*/
virtual Quantifier* clone() const override;
/**
* Implement UnicodeMatcher
* @param text the text to be matched
* @param offset on input, the index into text at which to begin
* matching. On output, the limit of the matched text. The
* number of matched characters is the output value of offset
* minus the input value. Offset should always point to the
* HIGH SURROGATE (leading code unit) of a pair of surrogates,
* both on entry and upon return.
* @param limit the limit index of text to be matched. Greater
* than offset for a forward direction match, less than offset for
* a backward direction match. The last character to be
* considered for matching will be text.charAt(limit-1) in the
* forward direction or text.charAt(limit+1) in the backward
* direction.
* @param incremental if true, then assume further characters may
* be inserted at limit and check for partial matching. Otherwise
* assume the text as given is complete.
* @return a match degree value indicating a full match, a partial
* match, or a mismatch. If incremental is false then
* U_PARTIAL_MATCH should never be returned.
*/
virtual UMatchDegree matches(const Replaceable& text,
int32_t& offset,
int32_t limit,
UBool incremental) override;
/**
* Implement UnicodeMatcher
* @param result Output param to receive the pattern.
* @param escapeUnprintable if True then escape the unprintable characters.
* @return A reference to 'result'.
*/
virtual UnicodeString& toPattern(UnicodeString& result,
UBool escapeUnprintable = false) const override;
/**
* Implement UnicodeMatcher
* @param v the given index value.
* @return true if this rule matches the given index value.
*/
virtual UBool matchesIndexValue(uint8_t v) const override;
/**
* Implement UnicodeMatcher
*/
virtual void addMatchSetTo(UnicodeSet& toUnionTo) const override;
/**
* UnicodeFunctor API
*/
virtual void setData(const TransliterationRuleData*) override;
/**
* ICU "poor man's RTTI", returns a UClassID for the actual class.
*/
virtual UClassID getDynamicClassID() const override;
/**
* ICU "poor man's RTTI", returns a UClassID for this class.
*/
static UClassID U_EXPORT2 getStaticClassID();
private:
UnicodeFunctor* matcher; // owned
uint32_t minCount;
uint32_t maxCount;
};
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_TRANSLITERATION */
#endif
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