816 lines
31 KiB
C++
816 lines
31 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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********************************************************************
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* COPYRIGHT:
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* Copyright (c) 1996-2015, International Business Machines Corporation and
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* others. All Rights Reserved.
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********************************************************************
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*/
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#ifndef NORMLZR_H
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#define NORMLZR_H
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#include "unicode/utypes.h"
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#if U_SHOW_CPLUSPLUS_API
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/**
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* \file
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* \brief C++ API: Unicode Normalization
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*/
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#if !UCONFIG_NO_NORMALIZATION
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#include "unicode/chariter.h"
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#include "unicode/normalizer2.h"
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#include "unicode/unistr.h"
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#include "unicode/unorm.h"
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#include "unicode/uobject.h"
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U_NAMESPACE_BEGIN
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/**
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* Old Unicode normalization API.
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*
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* This API has been replaced by the Normalizer2 class and is only available
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* for backward compatibility. This class simply delegates to the Normalizer2 class.
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* There is one exception: The new API does not provide a replacement for Normalizer::compare().
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*
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* The Normalizer class supports the standard normalization forms described in
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* <a href="http://www.unicode.org/unicode/reports/tr15/" target="unicode">
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* Unicode Standard Annex #15: Unicode Normalization Forms</a>.
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*
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* The Normalizer class consists of two parts:
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* - static functions that normalize strings or test if strings are normalized
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* - a Normalizer object is an iterator that takes any kind of text and
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* provides iteration over its normalized form
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*
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* The Normalizer class is not suitable for subclassing.
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*
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* For basic information about normalization forms and details about the C API
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* please see the documentation in unorm.h.
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*
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* The iterator API with the Normalizer constructors and the non-static functions
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* use a CharacterIterator as input. It is possible to pass a string which
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* is then internally wrapped in a CharacterIterator.
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* The input text is not normalized all at once, but incrementally where needed
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* (providing efficient random access).
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* This allows to pass in a large text but spend only a small amount of time
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* normalizing a small part of that text.
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* However, if the entire text is normalized, then the iterator will be
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* slower than normalizing the entire text at once and iterating over the result.
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* A possible use of the Normalizer iterator is also to report an index into the
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* original text that is close to where the normalized characters come from.
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*
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* <em>Important:</em> The iterator API was cleaned up significantly for ICU 2.0.
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* The earlier implementation reported the getIndex() inconsistently,
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* and previous() could not be used after setIndex(), next(), first(), and current().
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*
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* Normalizer allows to start normalizing from anywhere in the input text by
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* calling setIndexOnly(), first(), or last().
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* Without calling any of these, the iterator will start at the beginning of the text.
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*
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* At any time, next() returns the next normalized code point (UChar32),
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* with post-increment semantics (like CharacterIterator::next32PostInc()).
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* previous() returns the previous normalized code point (UChar32),
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* with pre-decrement semantics (like CharacterIterator::previous32()).
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*
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* current() returns the current code point
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* (respectively the one at the newly set index) without moving
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* the getIndex(). Note that if the text at the current position
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* needs to be normalized, then these functions will do that.
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* (This is why current() is not const.)
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* It is more efficient to call setIndexOnly() instead, which does not
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* normalize.
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*
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* getIndex() always refers to the position in the input text where the normalized
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* code points are returned from. It does not always change with each returned
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* code point.
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* The code point that is returned from any of the functions
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* corresponds to text at or after getIndex(), according to the
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* function's iteration semantics (post-increment or pre-decrement).
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*
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* next() returns a code point from at or after the getIndex()
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* from before the next() call. After the next() call, the getIndex()
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* might have moved to where the next code point will be returned from
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* (from a next() or current() call).
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* This is semantically equivalent to array access with array[index++]
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* (post-increment semantics).
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*
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* previous() returns a code point from at or after the getIndex()
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* from after the previous() call.
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* This is semantically equivalent to array access with array[--index]
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* (pre-decrement semantics).
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*
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* Internally, the Normalizer iterator normalizes a small piece of text
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* starting at the getIndex() and ending at a following "safe" index.
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* The normalized results is stored in an internal string buffer, and
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* the code points are iterated from there.
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* With multiple iteration calls, this is repeated until the next piece
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* of text needs to be normalized, and the getIndex() needs to be moved.
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*
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* The following "safe" index, the internal buffer, and the secondary
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* iteration index into that buffer are not exposed on the API.
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* This also means that it is currently not practical to return to
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* a particular, arbitrary position in the text because one would need to
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* know, and be able to set, in addition to the getIndex(), at least also the
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* current index into the internal buffer.
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* It is currently only possible to observe when getIndex() changes
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* (with careful consideration of the iteration semantics),
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* at which time the internal index will be 0.
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* For example, if getIndex() is different after next() than before it,
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* then the internal index is 0 and one can return to this getIndex()
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* later with setIndexOnly().
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*
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* Note: While the setIndex() and getIndex() refer to indices in the
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* underlying Unicode input text, the next() and previous() methods
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* iterate through characters in the normalized output.
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* This means that there is not necessarily a one-to-one correspondence
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* between characters returned by next() and previous() and the indices
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* passed to and returned from setIndex() and getIndex().
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* It is for this reason that Normalizer does not implement the CharacterIterator interface.
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*
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* @author Laura Werner, Mark Davis, Markus Scherer
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* @stable ICU 2.0
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*/
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class U_COMMON_API Normalizer : public UObject {
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public:
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#ifndef U_HIDE_DEPRECATED_API
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/**
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* If DONE is returned from an iteration function that returns a code point,
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* then there are no more normalization results available.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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enum {
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DONE=0xffff
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};
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// Constructors
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/**
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* Creates a new <code>Normalizer</code> object for iterating over the
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* normalized form of a given string.
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* <p>
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* @param str The string to be normalized. The normalization
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* will start at the beginning of the string.
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*
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* @param mode The normalization mode.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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Normalizer(const UnicodeString& str, UNormalizationMode mode);
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/**
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* Creates a new <code>Normalizer</code> object for iterating over the
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* normalized form of a given string.
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* <p>
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* @param str The string to be normalized. The normalization
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* will start at the beginning of the string.
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*
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* @param length Length of the string, or -1 if NUL-terminated.
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* @param mode The normalization mode.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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Normalizer(ConstChar16Ptr str, int32_t length, UNormalizationMode mode);
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/**
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* Creates a new <code>Normalizer</code> object for iterating over the
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* normalized form of the given text.
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* <p>
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* @param iter The input text to be normalized. The normalization
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* will start at the beginning of the string.
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*
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* @param mode The normalization mode.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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Normalizer(const CharacterIterator& iter, UNormalizationMode mode);
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#endif /* U_HIDE_DEPRECATED_API */
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#ifndef U_FORCE_HIDE_DEPRECATED_API
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/**
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* Copy constructor.
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* @param copy The object to be copied.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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Normalizer(const Normalizer& copy);
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/**
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* Destructor
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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virtual ~Normalizer();
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#endif // U_FORCE_HIDE_DEPRECATED_API
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//-------------------------------------------------------------------------
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// Static utility methods
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//-------------------------------------------------------------------------
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#ifndef U_HIDE_DEPRECATED_API
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/**
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* Normalizes a <code>UnicodeString</code> according to the specified normalization mode.
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* This is a wrapper for unorm_normalize(), using UnicodeString's.
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*
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* The <code>options</code> parameter specifies which optional
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* <code>Normalizer</code> features are to be enabled for this operation.
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*
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* @param source the input string to be normalized.
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* @param mode the normalization mode
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* @param options the optional features to be enabled (0 for no options)
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* @param result The normalized string (on output).
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* @param status The error code.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static void U_EXPORT2 normalize(const UnicodeString& source,
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UNormalizationMode mode, int32_t options,
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UnicodeString& result,
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UErrorCode &status);
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/**
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* Compose a <code>UnicodeString</code>.
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* This is equivalent to normalize() with mode UNORM_NFC or UNORM_NFKC.
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* This is a wrapper for unorm_normalize(), using UnicodeString's.
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*
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* The <code>options</code> parameter specifies which optional
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* <code>Normalizer</code> features are to be enabled for this operation.
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*
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* @param source the string to be composed.
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* @param compat Perform compatibility decomposition before composition.
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* If this argument is <code>false</code>, only canonical
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* decomposition will be performed.
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* @param options the optional features to be enabled (0 for no options)
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* @param result The composed string (on output).
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* @param status The error code.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static void U_EXPORT2 compose(const UnicodeString& source,
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UBool compat, int32_t options,
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UnicodeString& result,
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UErrorCode &status);
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/**
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* Static method to decompose a <code>UnicodeString</code>.
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* This is equivalent to normalize() with mode UNORM_NFD or UNORM_NFKD.
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* This is a wrapper for unorm_normalize(), using UnicodeString's.
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*
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* The <code>options</code> parameter specifies which optional
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* <code>Normalizer</code> features are to be enabled for this operation.
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*
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* @param source the string to be decomposed.
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* @param compat Perform compatibility decomposition.
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* If this argument is <code>false</code>, only canonical
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* decomposition will be performed.
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* @param options the optional features to be enabled (0 for no options)
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* @param result The decomposed string (on output).
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* @param status The error code.
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static void U_EXPORT2 decompose(const UnicodeString& source,
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UBool compat, int32_t options,
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UnicodeString& result,
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UErrorCode &status);
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/**
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* Performing quick check on a string, to quickly determine if the string is
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* in a particular normalization format.
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* This is a wrapper for unorm_quickCheck(), using a UnicodeString.
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*
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* Three types of result can be returned UNORM_YES, UNORM_NO or
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* UNORM_MAYBE. Result UNORM_YES indicates that the argument
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* string is in the desired normalized format, UNORM_NO determines that
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* argument string is not in the desired normalized format. A
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* UNORM_MAYBE result indicates that a more thorough check is required,
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* the user may have to put the string in its normalized form and compare the
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* results.
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* @param source string for determining if it is in a normalized format
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* @param mode normalization format
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* @param status A reference to a UErrorCode to receive any errors
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* @return UNORM_YES, UNORM_NO or UNORM_MAYBE
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*
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* @see isNormalized
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static inline UNormalizationCheckResult
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quickCheck(const UnicodeString &source, UNormalizationMode mode, UErrorCode &status);
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/**
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* Performing quick check on a string; same as the other version of quickCheck
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* but takes an extra options parameter like most normalization functions.
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*
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* @param source string for determining if it is in a normalized format
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* @param mode normalization format
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* @param options the optional features to be enabled (0 for no options)
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* @param status A reference to a UErrorCode to receive any errors
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* @return UNORM_YES, UNORM_NO or UNORM_MAYBE
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*
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* @see isNormalized
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static UNormalizationCheckResult
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quickCheck(const UnicodeString &source, UNormalizationMode mode, int32_t options, UErrorCode &status);
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/**
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* Test if a string is in a given normalization form.
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* This is semantically equivalent to source.equals(normalize(source, mode)) .
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*
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* Unlike unorm_quickCheck(), this function returns a definitive result,
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* never a "maybe".
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* For NFD, NFKD, and FCD, both functions work exactly the same.
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* For NFC and NFKC where quickCheck may return "maybe", this function will
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* perform further tests to arrive at a true/false result.
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*
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* @param src String that is to be tested if it is in a normalization format.
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* @param mode Which normalization form to test for.
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* @param errorCode ICU error code in/out parameter.
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* Must fulfill U_SUCCESS before the function call.
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* @return Boolean value indicating whether the source string is in the
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* "mode" normalization form.
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*
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* @see quickCheck
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static inline UBool
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isNormalized(const UnicodeString &src, UNormalizationMode mode, UErrorCode &errorCode);
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/**
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* Test if a string is in a given normalization form; same as the other version of isNormalized
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* but takes an extra options parameter like most normalization functions.
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*
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* @param src String that is to be tested if it is in a normalization format.
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* @param mode Which normalization form to test for.
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* @param options the optional features to be enabled (0 for no options)
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* @param errorCode ICU error code in/out parameter.
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* Must fulfill U_SUCCESS before the function call.
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* @return Boolean value indicating whether the source string is in the
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* "mode" normalization form.
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*
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* @see quickCheck
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static UBool
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isNormalized(const UnicodeString &src, UNormalizationMode mode, int32_t options, UErrorCode &errorCode);
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/**
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* Concatenate normalized strings, making sure that the result is normalized as well.
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*
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* If both the left and the right strings are in
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* the normalization form according to "mode/options",
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* then the result will be
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*
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* \code
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* dest=normalize(left+right, mode, options)
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* \endcode
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*
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* For details see unorm_concatenate in unorm.h.
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*
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* @param left Left source string.
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* @param right Right source string.
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* @param result The output string.
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* @param mode The normalization mode.
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* @param options A bit set of normalization options.
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* @param errorCode ICU error code in/out parameter.
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* Must fulfill U_SUCCESS before the function call.
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* @return result
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*
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* @see unorm_concatenate
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* @see normalize
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* @see unorm_next
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* @see unorm_previous
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*
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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static UnicodeString &
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U_EXPORT2 concatenate(const UnicodeString &left, const UnicodeString &right,
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UnicodeString &result,
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UNormalizationMode mode, int32_t options,
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UErrorCode &errorCode);
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#endif /* U_HIDE_DEPRECATED_API */
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/**
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* Compare two strings for canonical equivalence.
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* Further options include case-insensitive comparison and
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* code point order (as opposed to code unit order).
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*
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* Canonical equivalence between two strings is defined as their normalized
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* forms (NFD or NFC) being identical.
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* This function compares strings incrementally instead of normalizing
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* (and optionally case-folding) both strings entirely,
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* improving performance significantly.
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*
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* Bulk normalization is only necessary if the strings do not fulfill the FCD
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* conditions. Only in this case, and only if the strings are relatively long,
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* is memory allocated temporarily.
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* For FCD strings and short non-FCD strings there is no memory allocation.
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*
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* Semantically, this is equivalent to
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* strcmp[CodePointOrder](NFD(foldCase(s1)), NFD(foldCase(s2)))
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* where code point order and foldCase are all optional.
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*
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* UAX 21 2.5 Caseless Matching specifies that for a canonical caseless match
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* the case folding must be performed first, then the normalization.
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*
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* @param s1 First source string.
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* @param s2 Second source string.
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*
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* @param options A bit set of options:
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* - U_FOLD_CASE_DEFAULT or 0 is used for default options:
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* Case-sensitive comparison in code unit order, and the input strings
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* are quick-checked for FCD.
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*
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* - UNORM_INPUT_IS_FCD
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* Set if the caller knows that both s1 and s2 fulfill the FCD conditions.
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* If not set, the function will quickCheck for FCD
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* and normalize if necessary.
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*
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* - U_COMPARE_CODE_POINT_ORDER
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* Set to choose code point order instead of code unit order
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* (see u_strCompare for details).
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*
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* - U_COMPARE_IGNORE_CASE
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* Set to compare strings case-insensitively using case folding,
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* instead of case-sensitively.
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* If set, then the following case folding options are used.
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*
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* - Options as used with case-insensitive comparisons, currently:
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*
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* - U_FOLD_CASE_EXCLUDE_SPECIAL_I
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* (see u_strCaseCompare for details)
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*
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* - regular normalization options shifted left by UNORM_COMPARE_NORM_OPTIONS_SHIFT
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*
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* @param errorCode ICU error code in/out parameter.
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* Must fulfill U_SUCCESS before the function call.
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* @return <0 or 0 or >0 as usual for string comparisons
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*
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* @see unorm_compare
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* @see normalize
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* @see UNORM_FCD
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* @see u_strCompare
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* @see u_strCaseCompare
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*
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* @stable ICU 2.2
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*/
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static inline int32_t
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compare(const UnicodeString &s1, const UnicodeString &s2,
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uint32_t options,
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UErrorCode &errorCode);
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#ifndef U_HIDE_DEPRECATED_API
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//-------------------------------------------------------------------------
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// Iteration API
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//-------------------------------------------------------------------------
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/**
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* Return the current character in the normalized text.
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* current() may need to normalize some text at getIndex().
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* The getIndex() is not changed.
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*
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* @return the current normalized code point
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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UChar32 current();
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/**
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* Return the first character in the normalized text.
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* This is equivalent to setIndexOnly(startIndex()) followed by next().
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* (Post-increment semantics.)
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*
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* @return the first normalized code point
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* @deprecated ICU 56 Use Normalizer2 instead.
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*/
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UChar32 first();
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/**
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* Return the last character in the normalized text.
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* This is equivalent to setIndexOnly(endIndex()) followed by previous().
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* (Pre-decrement semantics.)
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*
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* @return the last normalized code point
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* @deprecated ICU 56 Use Normalizer2 instead.
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|
*/
|
|
UChar32 last();
|
|
|
|
/**
|
|
* Return the next character in the normalized text.
|
|
* (Post-increment semantics.)
|
|
* If the end of the text has already been reached, DONE is returned.
|
|
* The DONE value could be confused with a U+FFFF non-character code point
|
|
* in the text. If this is possible, you can test getIndex()<endIndex()
|
|
* before calling next(), or (getIndex()<endIndex() || last()!=DONE)
|
|
* after calling next(). (Calling last() will change the iterator state!)
|
|
*
|
|
* The C API unorm_next() is more efficient and does not have this ambiguity.
|
|
*
|
|
* @return the next normalized code point
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
UChar32 next();
|
|
|
|
/**
|
|
* Return the previous character in the normalized text and decrement.
|
|
* (Pre-decrement semantics.)
|
|
* If the beginning of the text has already been reached, DONE is returned.
|
|
* The DONE value could be confused with a U+FFFF non-character code point
|
|
* in the text. If this is possible, you can test
|
|
* (getIndex()>startIndex() || first()!=DONE). (Calling first() will change
|
|
* the iterator state!)
|
|
*
|
|
* The C API unorm_previous() is more efficient and does not have this ambiguity.
|
|
*
|
|
* @return the previous normalized code point
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
UChar32 previous();
|
|
|
|
/**
|
|
* Set the iteration position in the input text that is being normalized,
|
|
* without any immediate normalization.
|
|
* After setIndexOnly(), getIndex() will return the same index that is
|
|
* specified here.
|
|
*
|
|
* @param index the desired index in the input text.
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setIndexOnly(int32_t index);
|
|
|
|
/**
|
|
* Reset the index to the beginning of the text.
|
|
* This is equivalent to setIndexOnly(startIndex)).
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void reset();
|
|
|
|
/**
|
|
* Retrieve the current iteration position in the input text that is
|
|
* being normalized.
|
|
*
|
|
* A following call to next() will return a normalized code point from
|
|
* the input text at or after this index.
|
|
*
|
|
* After a call to previous(), getIndex() will point at or before the
|
|
* position in the input text where the normalized code point
|
|
* was returned from with previous().
|
|
*
|
|
* @return the current index in the input text
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
int32_t getIndex() const;
|
|
|
|
/**
|
|
* Retrieve the index of the start of the input text. This is the begin index
|
|
* of the <code>CharacterIterator</code> or the start (i.e. index 0) of the string
|
|
* over which this <code>Normalizer</code> is iterating.
|
|
*
|
|
* @return the smallest index in the input text where the Normalizer operates
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
int32_t startIndex() const;
|
|
|
|
/**
|
|
* Retrieve the index of the end of the input text. This is the end index
|
|
* of the <code>CharacterIterator</code> or the length of the string
|
|
* over which this <code>Normalizer</code> is iterating.
|
|
* This end index is exclusive, i.e., the Normalizer operates only on characters
|
|
* before this index.
|
|
*
|
|
* @return the first index in the input text where the Normalizer does not operate
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
int32_t endIndex() const;
|
|
|
|
/**
|
|
* Returns true when both iterators refer to the same character in the same
|
|
* input text.
|
|
*
|
|
* @param that a Normalizer object to compare this one to
|
|
* @return comparison result
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
bool operator==(const Normalizer& that) const;
|
|
|
|
/**
|
|
* Returns false when both iterators refer to the same character in the same
|
|
* input text.
|
|
*
|
|
* @param that a Normalizer object to compare this one to
|
|
* @return comparison result
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
inline bool operator!=(const Normalizer& that) const;
|
|
|
|
/**
|
|
* Returns a pointer to a new Normalizer that is a clone of this one.
|
|
* The caller is responsible for deleting the new clone.
|
|
* @return a pointer to a new Normalizer
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
Normalizer* clone() const;
|
|
|
|
/**
|
|
* Generates a hash code for this iterator.
|
|
*
|
|
* @return the hash code
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
int32_t hashCode() const;
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Property access methods
|
|
//-------------------------------------------------------------------------
|
|
|
|
/**
|
|
* Set the normalization mode for this object.
|
|
* <p>
|
|
* <b>Note:</b>If the normalization mode is changed while iterating
|
|
* over a string, calls to {@link #next() } and {@link #previous() } may
|
|
* return previously buffers characters in the old normalization mode
|
|
* until the iteration is able to re-sync at the next base character.
|
|
* It is safest to call {@link #setIndexOnly }, {@link #reset() },
|
|
* {@link #setText }, {@link #first() },
|
|
* {@link #last() }, etc. after calling <code>setMode</code>.
|
|
* <p>
|
|
* @param newMode the new mode for this <code>Normalizer</code>.
|
|
* @see #getUMode
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setMode(UNormalizationMode newMode);
|
|
|
|
/**
|
|
* Return the normalization mode for this object.
|
|
*
|
|
* This is an unusual name because there used to be a getMode() that
|
|
* returned a different type.
|
|
*
|
|
* @return the mode for this <code>Normalizer</code>
|
|
* @see #setMode
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
UNormalizationMode getUMode() const;
|
|
|
|
/**
|
|
* Set options that affect this <code>Normalizer</code>'s operation.
|
|
* Options do not change the basic composition or decomposition operation
|
|
* that is being performed, but they control whether
|
|
* certain optional portions of the operation are done.
|
|
* Currently the only available option is obsolete.
|
|
*
|
|
* It is possible to specify multiple options that are all turned on or off.
|
|
*
|
|
* @param option the option(s) whose value is/are to be set.
|
|
* @param value the new setting for the option. Use <code>true</code> to
|
|
* turn the option(s) on and <code>false</code> to turn it/them off.
|
|
*
|
|
* @see #getOption
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setOption(int32_t option,
|
|
UBool value);
|
|
|
|
/**
|
|
* Determine whether an option is turned on or off.
|
|
* If multiple options are specified, then the result is true if any
|
|
* of them are set.
|
|
* <p>
|
|
* @param option the option(s) that are to be checked
|
|
* @return true if any of the option(s) are set
|
|
* @see #setOption
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
UBool getOption(int32_t option) const;
|
|
|
|
/**
|
|
* Set the input text over which this <code>Normalizer</code> will iterate.
|
|
* The iteration position is set to the beginning.
|
|
*
|
|
* @param newText a string that replaces the current input text
|
|
* @param status a UErrorCode
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setText(const UnicodeString& newText,
|
|
UErrorCode &status);
|
|
|
|
/**
|
|
* Set the input text over which this <code>Normalizer</code> will iterate.
|
|
* The iteration position is set to the beginning.
|
|
*
|
|
* @param newText a CharacterIterator object that replaces the current input text
|
|
* @param status a UErrorCode
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setText(const CharacterIterator& newText,
|
|
UErrorCode &status);
|
|
|
|
/**
|
|
* Set the input text over which this <code>Normalizer</code> will iterate.
|
|
* The iteration position is set to the beginning.
|
|
*
|
|
* @param newText a string that replaces the current input text
|
|
* @param length the length of the string, or -1 if NUL-terminated
|
|
* @param status a UErrorCode
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void setText(ConstChar16Ptr newText,
|
|
int32_t length,
|
|
UErrorCode &status);
|
|
/**
|
|
* Copies the input text into the UnicodeString argument.
|
|
*
|
|
* @param result Receives a copy of the text under iteration.
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
void getText(UnicodeString& result);
|
|
|
|
/**
|
|
* ICU "poor man's RTTI", returns a UClassID for this class.
|
|
* @returns a UClassID for this class.
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
static UClassID U_EXPORT2 getStaticClassID();
|
|
#endif /* U_HIDE_DEPRECATED_API */
|
|
|
|
#ifndef U_FORCE_HIDE_DEPRECATED_API
|
|
/**
|
|
* ICU "poor man's RTTI", returns a UClassID for the actual class.
|
|
* @return a UClassID for the actual class.
|
|
* @deprecated ICU 56 Use Normalizer2 instead.
|
|
*/
|
|
virtual UClassID getDynamicClassID() const override;
|
|
#endif // U_FORCE_HIDE_DEPRECATED_API
|
|
|
|
private:
|
|
//-------------------------------------------------------------------------
|
|
// Private functions
|
|
//-------------------------------------------------------------------------
|
|
|
|
Normalizer() = delete; // default constructor not implemented
|
|
Normalizer &operator=(const Normalizer &that) = delete; // assignment operator not implemented
|
|
|
|
// Private utility methods for iteration
|
|
// For documentation, see the source code
|
|
UBool nextNormalize();
|
|
UBool previousNormalize();
|
|
|
|
void init();
|
|
void clearBuffer();
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Private data
|
|
//-------------------------------------------------------------------------
|
|
|
|
FilteredNormalizer2*fFilteredNorm2; // owned if not nullptr
|
|
const Normalizer2 *fNorm2; // not owned; may be equal to fFilteredNorm2
|
|
UNormalizationMode fUMode; // deprecated
|
|
int32_t fOptions;
|
|
|
|
// The input text and our position in it
|
|
CharacterIterator *text;
|
|
|
|
// The normalization buffer is the result of normalization
|
|
// of the source in [currentIndex..nextIndex[ .
|
|
int32_t currentIndex, nextIndex;
|
|
|
|
// A buffer for holding intermediate results
|
|
UnicodeString buffer;
|
|
int32_t bufferPos;
|
|
};
|
|
|
|
//-------------------------------------------------------------------------
|
|
// Inline implementations
|
|
//-------------------------------------------------------------------------
|
|
|
|
#ifndef U_HIDE_DEPRECATED_API
|
|
inline bool
|
|
Normalizer::operator!= (const Normalizer& other) const
|
|
{ return ! operator==(other); }
|
|
|
|
inline UNormalizationCheckResult
|
|
Normalizer::quickCheck(const UnicodeString& source,
|
|
UNormalizationMode mode,
|
|
UErrorCode &status) {
|
|
return quickCheck(source, mode, 0, status);
|
|
}
|
|
|
|
inline UBool
|
|
Normalizer::isNormalized(const UnicodeString& source,
|
|
UNormalizationMode mode,
|
|
UErrorCode &status) {
|
|
return isNormalized(source, mode, 0, status);
|
|
}
|
|
#endif /* U_HIDE_DEPRECATED_API */
|
|
|
|
inline int32_t
|
|
Normalizer::compare(const UnicodeString &s1, const UnicodeString &s2,
|
|
uint32_t options,
|
|
UErrorCode &errorCode) {
|
|
// all argument checking is done in unorm_compare
|
|
return unorm_compare(toUCharPtr(s1.getBuffer()), s1.length(),
|
|
toUCharPtr(s2.getBuffer()), s2.length(),
|
|
options,
|
|
&errorCode);
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_NORMALIZATION */
|
|
|
|
#endif // NORMLZR_H
|
|
|
|
#endif /* U_SHOW_CPLUSPLUS_API */
|