593 lines
25 KiB
C++
593 lines
25 KiB
C++
/*
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 2009-2011, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*
|
|
*******************************************************************************
|
|
* file name: normalizer2.h
|
|
* encoding: US-ASCII
|
|
* tab size: 8 (not used)
|
|
* indentation:4
|
|
*
|
|
* created on: 2009nov22
|
|
* created by: Markus W. Scherer
|
|
*/
|
|
|
|
#ifndef __NORMALIZER2_H__
|
|
#define __NORMALIZER2_H__
|
|
|
|
/**
|
|
* \file
|
|
* \brief C++ API: New API for Unicode Normalization.
|
|
*/
|
|
|
|
#include "unicode/utypes.h"
|
|
|
|
#if !UCONFIG_NO_NORMALIZATION
|
|
|
|
#include "unicode/uniset.h"
|
|
#include "unicode/unistr.h"
|
|
#include "unicode/unorm2.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
/**
|
|
* Unicode normalization functionality for standard Unicode normalization or
|
|
* for using custom mapping tables.
|
|
* All instances of this class are unmodifiable/immutable.
|
|
* Instances returned by getInstance() are singletons that must not be deleted by the caller.
|
|
* The Normalizer2 class is not intended for public subclassing.
|
|
*
|
|
* The primary functions are to produce a normalized string and to detect whether
|
|
* a string is already normalized.
|
|
* The most commonly used normalization forms are those defined in
|
|
* http://www.unicode.org/unicode/reports/tr15/
|
|
* However, this API supports additional normalization forms for specialized purposes.
|
|
* For example, NFKC_Casefold is provided via getInstance("nfkc_cf", COMPOSE)
|
|
* and can be used in implementations of UTS #46.
|
|
*
|
|
* Not only are the standard compose and decompose modes supplied,
|
|
* but additional modes are provided as documented in the Mode enum.
|
|
*
|
|
* Some of the functions in this class identify normalization boundaries.
|
|
* At a normalization boundary, the portions of the string
|
|
* before it and starting from it do not interact and can be handled independently.
|
|
*
|
|
* The spanQuickCheckYes() stops at a normalization boundary.
|
|
* When the goal is a normalized string, then the text before the boundary
|
|
* can be copied, and the remainder can be processed with normalizeSecondAndAppend().
|
|
*
|
|
* The hasBoundaryBefore(), hasBoundaryAfter() and isInert() functions test whether
|
|
* a character is guaranteed to be at a normalization boundary,
|
|
* regardless of context.
|
|
* This is used for moving from one normalization boundary to the next
|
|
* or preceding boundary, and for performing iterative normalization.
|
|
*
|
|
* Iterative normalization is useful when only a small portion of a
|
|
* longer string needs to be processed.
|
|
* For example, in ICU, iterative normalization is used by the NormalizationTransliterator
|
|
* (to avoid replacing already-normalized text) and ucol_nextSortKeyPart()
|
|
* (to process only the substring for which sort key bytes are computed).
|
|
*
|
|
* The set of normalization boundaries returned by these functions may not be
|
|
* complete: There may be more boundaries that could be returned.
|
|
* Different functions may return different boundaries.
|
|
* @stable ICU 4.4
|
|
*/
|
|
class U_COMMON_API Normalizer2 : public UObject {
|
|
public:
|
|
/**
|
|
* Destructor.
|
|
* @stable ICU 4.4
|
|
*/
|
|
~Normalizer2();
|
|
|
|
/**
|
|
* Returns a Normalizer2 instance which uses the specified data file
|
|
* (packageName/name similar to ucnv_openPackage() and ures_open()/ResourceBundle)
|
|
* and which composes or decomposes text according to the specified mode.
|
|
* Returns an unmodifiable singleton instance. Do not delete it.
|
|
*
|
|
* Use packageName=NULL for data files that are part of ICU's own data.
|
|
* Use name="nfc" and UNORM2_COMPOSE/UNORM2_DECOMPOSE for Unicode standard NFC/NFD.
|
|
* Use name="nfkc" and UNORM2_COMPOSE/UNORM2_DECOMPOSE for Unicode standard NFKC/NFKD.
|
|
* Use name="nfkc_cf" and UNORM2_COMPOSE for Unicode standard NFKC_CF=NFKC_Casefold.
|
|
*
|
|
* @param packageName NULL for ICU built-in data, otherwise application data package name
|
|
* @param name "nfc" or "nfkc" or "nfkc_cf" or name of custom data file
|
|
* @param mode normalization mode (compose or decompose etc.)
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return the requested Normalizer2, if successful
|
|
* @stable ICU 4.4
|
|
*/
|
|
static const Normalizer2 *
|
|
getInstance(const char *packageName,
|
|
const char *name,
|
|
UNormalization2Mode mode,
|
|
UErrorCode &errorCode);
|
|
|
|
/**
|
|
* Returns the normalized form of the source string.
|
|
* @param src source string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return normalized src
|
|
* @stable ICU 4.4
|
|
*/
|
|
UnicodeString
|
|
normalize(const UnicodeString &src, UErrorCode &errorCode) const {
|
|
UnicodeString result;
|
|
normalize(src, result, errorCode);
|
|
return result;
|
|
}
|
|
/**
|
|
* Writes the normalized form of the source string to the destination string
|
|
* (replacing its contents) and returns the destination string.
|
|
* The source and destination strings must be different objects.
|
|
* @param src source string
|
|
* @param dest destination string; its contents is replaced with normalized src
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return dest
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
normalize(const UnicodeString &src,
|
|
UnicodeString &dest,
|
|
UErrorCode &errorCode) const = 0;
|
|
/**
|
|
* Appends the normalized form of the second string to the first string
|
|
* (merging them at the boundary) and returns the first string.
|
|
* The result is normalized if the first string was normalized.
|
|
* The first and second strings must be different objects.
|
|
* @param first string, should be normalized
|
|
* @param second string, will be normalized
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return first
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
normalizeSecondAndAppend(UnicodeString &first,
|
|
const UnicodeString &second,
|
|
UErrorCode &errorCode) const = 0;
|
|
/**
|
|
* Appends the second string to the first string
|
|
* (merging them at the boundary) and returns the first string.
|
|
* The result is normalized if both the strings were normalized.
|
|
* The first and second strings must be different objects.
|
|
* @param first string, should be normalized
|
|
* @param second string, should be normalized
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return first
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
append(UnicodeString &first,
|
|
const UnicodeString &second,
|
|
UErrorCode &errorCode) const = 0;
|
|
|
|
/**
|
|
* Gets the decomposition mapping of c.
|
|
* Roughly equivalent to normalizing the String form of c
|
|
* on a UNORM2_DECOMPOSE Normalizer2 instance, but much faster, and except that this function
|
|
* returns FALSE and does not write a string
|
|
* if c does not have a decomposition mapping in this instance's data.
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* @param c code point
|
|
* @param decomposition String object which will be set to c's
|
|
* decomposition mapping, if there is one.
|
|
* @return TRUE if c has a decomposition, otherwise FALSE
|
|
* @draft ICU 4.6
|
|
*/
|
|
virtual UBool
|
|
getDecomposition(UChar32 c, UnicodeString &decomposition) const = 0;
|
|
|
|
/**
|
|
* Gets the raw decomposition mapping of c.
|
|
*
|
|
* This is similar to the getDecomposition() method but returns the
|
|
* raw decomposition mapping as specified in UnicodeData.txt or
|
|
* (for custom data) in the mapping files processed by the gennorm2 tool.
|
|
* By contrast, getDecomposition() returns the processed,
|
|
* recursively-decomposed version of this mapping.
|
|
*
|
|
* When used on a standard NFKC Normalizer2 instance,
|
|
* getRawDecomposition() returns the Unicode Decomposition_Mapping (dm) property.
|
|
*
|
|
* When used on a standard NFC Normalizer2 instance,
|
|
* it returns the Decomposition_Mapping only if the Decomposition_Type (dt) is Canonical (Can);
|
|
* in this case, the result contains either one or two code points (=1..4 UChars).
|
|
*
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* The default implementation returns FALSE.
|
|
* @param c code point
|
|
* @param decomposition String object which will be set to c's
|
|
* raw decomposition mapping, if there is one.
|
|
* @return TRUE if c has a decomposition, otherwise FALSE
|
|
* @draft ICU 49
|
|
*/
|
|
virtual UBool
|
|
getRawDecomposition(UChar32 c, UnicodeString &decomposition) const;
|
|
|
|
/**
|
|
* Performs pairwise composition of a & b and returns the composite if there is one.
|
|
*
|
|
* Returns a composite code point c only if c has a two-way mapping to a+b.
|
|
* In standard Unicode normalization, this means that
|
|
* c has a canonical decomposition to a+b
|
|
* and c does not have the Full_Composition_Exclusion property.
|
|
*
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* The default implementation returns a negative value.
|
|
* @param a A (normalization starter) code point.
|
|
* @param b Another code point.
|
|
* @return The non-negative composite code point if there is one; otherwise a negative value.
|
|
* @draft ICU 49
|
|
*/
|
|
virtual UChar32
|
|
composePair(UChar32 a, UChar32 b) const;
|
|
|
|
/**
|
|
* Gets the combining class of c.
|
|
* The default implementation returns 0
|
|
* but all standard implementations return the Unicode Canonical_Combining_Class value.
|
|
* @param c code point
|
|
* @return c's combining class
|
|
* @draft ICU 49
|
|
*/
|
|
virtual uint8_t
|
|
getCombiningClass(UChar32 c) const;
|
|
|
|
/**
|
|
* Tests if the string is normalized.
|
|
* Internally, in cases where the quickCheck() method would return "maybe"
|
|
* (which is only possible for the two COMPOSE modes) this method
|
|
* resolves to "yes" or "no" to provide a definitive result,
|
|
* at the cost of doing more work in those cases.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return TRUE if s is normalized
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool
|
|
isNormalized(const UnicodeString &s, UErrorCode &errorCode) const = 0;
|
|
|
|
/**
|
|
* Tests if the string is normalized.
|
|
* For the two COMPOSE modes, the result could be "maybe" in cases that
|
|
* would take a little more work to resolve definitively.
|
|
* Use spanQuickCheckYes() and normalizeSecondAndAppend() for a faster
|
|
* combination of quick check + normalization, to avoid
|
|
* re-checking the "yes" prefix.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return UNormalizationCheckResult
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UNormalizationCheckResult
|
|
quickCheck(const UnicodeString &s, UErrorCode &errorCode) const = 0;
|
|
|
|
/**
|
|
* Returns the end of the normalized substring of the input string.
|
|
* In other words, with <code>end=spanQuickCheckYes(s, ec);</code>
|
|
* the substring <code>UnicodeString(s, 0, end)</code>
|
|
* will pass the quick check with a "yes" result.
|
|
*
|
|
* The returned end index is usually one or more characters before the
|
|
* "no" or "maybe" character: The end index is at a normalization boundary.
|
|
* (See the class documentation for more about normalization boundaries.)
|
|
*
|
|
* When the goal is a normalized string and most input strings are expected
|
|
* to be normalized already, then call this method,
|
|
* and if it returns a prefix shorter than the input string,
|
|
* copy that prefix and use normalizeSecondAndAppend() for the remainder.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return "yes" span end index
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual int32_t
|
|
spanQuickCheckYes(const UnicodeString &s, UErrorCode &errorCode) const = 0;
|
|
|
|
/**
|
|
* Tests if the character always has a normalization boundary before it,
|
|
* regardless of context.
|
|
* If true, then the character does not normalization-interact with
|
|
* preceding characters.
|
|
* In other words, a string containing this character can be normalized
|
|
* by processing portions before this character and starting from this
|
|
* character independently.
|
|
* This is used for iterative normalization. See the class documentation for details.
|
|
* @param c character to test
|
|
* @return TRUE if c has a normalization boundary before it
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool hasBoundaryBefore(UChar32 c) const = 0;
|
|
|
|
/**
|
|
* Tests if the character always has a normalization boundary after it,
|
|
* regardless of context.
|
|
* If true, then the character does not normalization-interact with
|
|
* following characters.
|
|
* In other words, a string containing this character can be normalized
|
|
* by processing portions up to this character and after this
|
|
* character independently.
|
|
* This is used for iterative normalization. See the class documentation for details.
|
|
* Note that this operation may be significantly slower than hasBoundaryBefore().
|
|
* @param c character to test
|
|
* @return TRUE if c has a normalization boundary after it
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool hasBoundaryAfter(UChar32 c) const = 0;
|
|
|
|
/**
|
|
* Tests if the character is normalization-inert.
|
|
* If true, then the character does not change, nor normalization-interact with
|
|
* preceding or following characters.
|
|
* In other words, a string containing this character can be normalized
|
|
* by processing portions before this character and after this
|
|
* character independently.
|
|
* This is used for iterative normalization. See the class documentation for details.
|
|
* Note that this operation may be significantly slower than hasBoundaryBefore().
|
|
* @param c character to test
|
|
* @return TRUE if c is normalization-inert
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool isInert(UChar32 c) const = 0;
|
|
|
|
private:
|
|
// No ICU "poor man's RTTI" for this class nor its subclasses.
|
|
virtual UClassID getDynamicClassID() const;
|
|
};
|
|
|
|
/**
|
|
* Normalization filtered by a UnicodeSet.
|
|
* Normalizes portions of the text contained in the filter set and leaves
|
|
* portions not contained in the filter set unchanged.
|
|
* Filtering is done via UnicodeSet::span(..., USET_SPAN_SIMPLE).
|
|
* Not-in-the-filter text is treated as "is normalized" and "quick check yes".
|
|
* This class implements all of (and only) the Normalizer2 API.
|
|
* An instance of this class is unmodifiable/immutable but is constructed and
|
|
* must be destructed by the owner.
|
|
* @stable ICU 4.4
|
|
*/
|
|
class U_COMMON_API FilteredNormalizer2 : public Normalizer2 {
|
|
public:
|
|
/**
|
|
* Constructs a filtered normalizer wrapping any Normalizer2 instance
|
|
* and a filter set.
|
|
* Both are aliased and must not be modified or deleted while this object
|
|
* is used.
|
|
* The filter set should be frozen; otherwise the performance will suffer greatly.
|
|
* @param n2 wrapped Normalizer2 instance
|
|
* @param filterSet UnicodeSet which determines the characters to be normalized
|
|
* @stable ICU 4.4
|
|
*/
|
|
FilteredNormalizer2(const Normalizer2 &n2, const UnicodeSet &filterSet) :
|
|
norm2(n2), set(filterSet) {}
|
|
|
|
/**
|
|
* Destructor.
|
|
* @stable ICU 4.4
|
|
*/
|
|
~FilteredNormalizer2();
|
|
|
|
/**
|
|
* Writes the normalized form of the source string to the destination string
|
|
* (replacing its contents) and returns the destination string.
|
|
* The source and destination strings must be different objects.
|
|
* @param src source string
|
|
* @param dest destination string; its contents is replaced with normalized src
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return dest
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
normalize(const UnicodeString &src,
|
|
UnicodeString &dest,
|
|
UErrorCode &errorCode) const;
|
|
/**
|
|
* Appends the normalized form of the second string to the first string
|
|
* (merging them at the boundary) and returns the first string.
|
|
* The result is normalized if the first string was normalized.
|
|
* The first and second strings must be different objects.
|
|
* @param first string, should be normalized
|
|
* @param second string, will be normalized
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return first
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
normalizeSecondAndAppend(UnicodeString &first,
|
|
const UnicodeString &second,
|
|
UErrorCode &errorCode) const;
|
|
/**
|
|
* Appends the second string to the first string
|
|
* (merging them at the boundary) and returns the first string.
|
|
* The result is normalized if both the strings were normalized.
|
|
* The first and second strings must be different objects.
|
|
* @param first string, should be normalized
|
|
* @param second string, should be normalized
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return first
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UnicodeString &
|
|
append(UnicodeString &first,
|
|
const UnicodeString &second,
|
|
UErrorCode &errorCode) const;
|
|
|
|
/**
|
|
* Gets the decomposition mapping of c.
|
|
* For details see the base class documentation.
|
|
*
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* @param c code point
|
|
* @param decomposition String object which will be set to c's
|
|
* decomposition mapping, if there is one.
|
|
* @return TRUE if c has a decomposition, otherwise FALSE
|
|
* @draft ICU 4.6
|
|
*/
|
|
virtual UBool
|
|
getDecomposition(UChar32 c, UnicodeString &decomposition) const;
|
|
|
|
/**
|
|
* Gets the raw decomposition mapping of c.
|
|
* For details see the base class documentation.
|
|
*
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* @param c code point
|
|
* @param decomposition String object which will be set to c's
|
|
* raw decomposition mapping, if there is one.
|
|
* @return TRUE if c has a decomposition, otherwise FALSE
|
|
* @draft ICU 49
|
|
*/
|
|
virtual UBool
|
|
getRawDecomposition(UChar32 c, UnicodeString &decomposition) const;
|
|
|
|
/**
|
|
* Performs pairwise composition of a & b and returns the composite if there is one.
|
|
* For details see the base class documentation.
|
|
*
|
|
* This function is independent of the mode of the Normalizer2.
|
|
* @param a A (normalization starter) code point.
|
|
* @param b Another code point.
|
|
* @return The non-negative composite code point if there is one; otherwise a negative value.
|
|
* @draft ICU 49
|
|
*/
|
|
virtual UChar32
|
|
composePair(UChar32 a, UChar32 b) const;
|
|
|
|
/**
|
|
* Gets the combining class of c.
|
|
* The default implementation returns 0
|
|
* but all standard implementations return the Unicode Canonical_Combining_Class value.
|
|
* @param c code point
|
|
* @return c's combining class
|
|
* @draft ICU 49
|
|
*/
|
|
virtual uint8_t
|
|
getCombiningClass(UChar32 c) const;
|
|
|
|
/**
|
|
* Tests if the string is normalized.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return TRUE if s is normalized
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool
|
|
isNormalized(const UnicodeString &s, UErrorCode &errorCode) const;
|
|
/**
|
|
* Tests if the string is normalized.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return UNormalizationCheckResult
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UNormalizationCheckResult
|
|
quickCheck(const UnicodeString &s, UErrorCode &errorCode) const;
|
|
/**
|
|
* Returns the end of the normalized substring of the input string.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param s input string
|
|
* @param errorCode Standard ICU error code. Its input value must
|
|
* pass the U_SUCCESS() test, or else the function returns
|
|
* immediately. Check for U_FAILURE() on output or use with
|
|
* function chaining. (See User Guide for details.)
|
|
* @return "yes" span end index
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual int32_t
|
|
spanQuickCheckYes(const UnicodeString &s, UErrorCode &errorCode) const;
|
|
|
|
/**
|
|
* Tests if the character always has a normalization boundary before it,
|
|
* regardless of context.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param c character to test
|
|
* @return TRUE if c has a normalization boundary before it
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool hasBoundaryBefore(UChar32 c) const;
|
|
|
|
/**
|
|
* Tests if the character always has a normalization boundary after it,
|
|
* regardless of context.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param c character to test
|
|
* @return TRUE if c has a normalization boundary after it
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool hasBoundaryAfter(UChar32 c) const;
|
|
|
|
/**
|
|
* Tests if the character is normalization-inert.
|
|
* For details see the Normalizer2 base class documentation.
|
|
* @param c character to test
|
|
* @return TRUE if c is normalization-inert
|
|
* @stable ICU 4.4
|
|
*/
|
|
virtual UBool isInert(UChar32 c) const;
|
|
private:
|
|
UnicodeString &
|
|
normalize(const UnicodeString &src,
|
|
UnicodeString &dest,
|
|
USetSpanCondition spanCondition,
|
|
UErrorCode &errorCode) const;
|
|
|
|
UnicodeString &
|
|
normalizeSecondAndAppend(UnicodeString &first,
|
|
const UnicodeString &second,
|
|
UBool doNormalize,
|
|
UErrorCode &errorCode) const;
|
|
|
|
const Normalizer2 &norm2;
|
|
const UnicodeSet &set;
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif // !UCONFIG_NO_NORMALIZATION
|
|
#endif // __NORMALIZER2_H__
|