tor-browser

The Tor Browser
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nortrans.h (2906B)

      1 // © 2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 /*
      4 **********************************************************************
      5 *   Copyright (C) 2001-2010, International Business Machines
      6 *   Corporation and others.  All Rights Reserved.
      7 **********************************************************************
      8 *   Date        Name        Description
      9 *   07/03/01    aliu        Creation.
     10 **********************************************************************
     11 */
     12 #ifndef NORTRANS_H
     13 #define NORTRANS_H
     14 
     15 #include "unicode/utypes.h"
     16 
     17 #if !UCONFIG_NO_TRANSLITERATION
     18 
     19 #include "unicode/translit.h"
     20 #include "unicode/normalizer2.h"
     21 
     22 U_NAMESPACE_BEGIN
     23 
     24 /**
     25 * A transliterator that performs normalization.
     26 * @author Alan Liu
     27 */
     28 class NormalizationTransliterator : public Transliterator {
     29    const Normalizer2 &fNorm2;
     30 
     31 public:
     32 
     33    /**
     34     * Destructor.
     35     */
     36    virtual ~NormalizationTransliterator();
     37 
     38    /**
     39     * Copy constructor.
     40     */
     41    NormalizationTransliterator(const NormalizationTransliterator&);
     42 
     43    /**
     44     * Transliterator API.
     45     * @return    A copy of the object.
     46     */
     47    virtual NormalizationTransliterator* clone() const override;
     48 
     49    /**
     50     * ICU "poor man's RTTI", returns a UClassID for the actual class.
     51     */
     52    virtual UClassID getDynamicClassID() const override;
     53 
     54    /**
     55     * ICU "poor man's RTTI", returns a UClassID for this class.
     56     */
     57    U_I18N_API static UClassID U_EXPORT2 getStaticClassID();
     58 
     59 protected:
     60 
     61    /**
     62     * Implements {@link Transliterator#handleTransliterate}.
     63     * @param text          the buffer holding transliterated and
     64     *                      untransliterated text
     65     * @param offset        the start and limit of the text, the position
     66     *                      of the cursor, and the start and limit of transliteration.
     67     * @param incremental   if true, assume more text may be coming after
     68     *                      pos.contextLimit. Otherwise, assume the text is complete.
     69     */
     70    virtual void handleTransliterate(Replaceable& text, UTransPosition& offset,
     71                             UBool isIncremental) const override;
     72 public:
     73 
     74    /**
     75     * System registration hook.  Public to Transliterator only.
     76     */
     77    static void registerIDs();
     78 
     79 private:
     80 
     81    // Transliterator::Factory methods
     82    static Transliterator* _create(const UnicodeString& ID,
     83                                   Token context);
     84 
     85    /**
     86     * Constructs a transliterator.  This method is private.
     87     * Public users must use the factory method createInstance().
     88     */
     89    NormalizationTransliterator(const UnicodeString& id, const Normalizer2 &norm2);
     90 
     91 private:
     92    /**
     93     * Assignment operator.
     94     */
     95    NormalizationTransliterator& operator=(const NormalizationTransliterator&);
     96 };
     97 
     98 U_NAMESPACE_END
     99 
    100 #endif /* #if !UCONFIG_NO_TRANSLITERATION */
    101 
    102 #endif