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-// © 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
-* 01/21/2002 aliu Creation.
-**********************************************************************
-*/
-
-#ifndef STRREPL_H
-#define STRREPL_H
-
-#include "unicode/utypes.h"
-
-#if !UCONFIG_NO_TRANSLITERATION
-
-#include "unicode/unifunct.h"
-#include "unicode/unirepl.h"
-#include "unicode/unistr.h"
-
-U_NAMESPACE_BEGIN
-
-class TransliterationRuleData;
-
-/**
- * A replacer that produces static text as its output. The text may
- * contain transliterator stand-in characters that represent nested
- * UnicodeReplacer objects, making it possible to encode a tree of
- * replacers in a StringReplacer. A StringReplacer that contains such
- * stand-ins is called a <em>complex</em> StringReplacer. A complex
- * StringReplacer has a slower processing loop than a non-complex one.
- * @author Alan Liu
- */
-class StringReplacer : public UnicodeFunctor, public UnicodeReplacer {
-
- private:
-
- /**
- * Output text, possibly containing stand-in characters that
- * represent nested UnicodeReplacers.
- */
- UnicodeString output;
-
- /**
- * Cursor position. Value is ignored if hasCursor is false.
- */
- int32_t cursorPos;
-
- /**
- * True if this object outputs a cursor position.
- */
- UBool hasCursor;
-
- /**
- * A complex object contains nested replacers and requires more
- * complex processing. StringReplacers are initially assumed to
- * be complex. If no nested replacers are seen during processing,
- * then isComplex is set to false, and future replacements are
- * short circuited for better performance.
- */
- UBool isComplex;
-
- /**
- * Object that translates stand-in characters in 'output' to
- * UnicodeReplacer objects.
- */
- const TransliterationRuleData* data;
-
- public:
-
- /**
- * Construct a StringReplacer that sets the emits the given output
- * text and sets the cursor to the given position.
- * @param theOutput text that will replace input text when the
- * replace() method is called. May contain stand-in characters
- * that represent nested replacers.
- * @param theCursorPos cursor position that will be returned by
- * the replace() method
- * @param theData transliterator context object that translates
- * stand-in characters to UnicodeReplacer objects
- */
- StringReplacer(const UnicodeString& theOutput,
- int32_t theCursorPos,
- const TransliterationRuleData* theData);
-
- /**
- * Construct a StringReplacer that sets the emits the given output
- * text and does not modify the cursor.
- * @param theOutput text that will replace input text when the
- * replace() method is called. May contain stand-in characters
- * that represent nested replacers.
- * @param theData transliterator context object that translates
- * stand-in characters to UnicodeReplacer objects
- */
- StringReplacer(const UnicodeString& theOutput,
- const TransliterationRuleData* theData);
-
- /**
- * Copy constructor.
- */
- StringReplacer(const StringReplacer& other);
-
- /**
- * Destructor
- */
- virtual ~StringReplacer();
-
- /**
- * 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& result,
- 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 this class.
- */
- static UClassID U_EXPORT2 getStaticClassID();
-
- /**
- * ICU "poor man's RTTI", returns a UClassID for the actual class.
- */
- virtual UClassID getDynamicClassID() const;
-};
-
-U_NAMESPACE_END
-
-#endif /* #if !UCONFIG_NO_TRANSLITERATION */
-
-#endif
-
-//eof