+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
- * Copyright (C) 1996-2003, International Business Machines Corporation and *
- * others. All Rights Reserved. *
+ * Copyright (C) 1996-2014, International Business Machines Corporation and
+ * others. All Rights Reserved.
*******************************************************************************
*/
#include "unicode/uobject.h"
#include "unicode/unistr.h"
+/**
+ * \file
+ * \brief C++ API: Canonical Iterator
+ */
+
/** Should permutation skip characters with combining class zero
* Should be either TRUE or FALSE. This is a compile time option
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
#ifndef CANITER_SKIP_ZEROES
#define CANITER_SKIP_ZEROES TRUE
#endif
+#if U_SHOW_CPLUSPLUS_API
U_NAMESPACE_BEGIN
class Hashtable;
+class Normalizer2;
+class Normalizer2Impl;
/**
* This class allows one to iterate through all the strings that are canonically equivalent to a given
* string. For example, here are some sample results:
Results for: {LATIN CAPITAL LETTER A WITH RING ABOVE}{LATIN SMALL LETTER D}{COMBINING DOT ABOVE}{COMBINING CEDILLA}
-1: \u0041\u030A\u0064\u0307\u0327
+1: \\u0041\\u030A\\u0064\\u0307\\u0327
= {LATIN CAPITAL LETTER A}{COMBINING RING ABOVE}{LATIN SMALL LETTER D}{COMBINING DOT ABOVE}{COMBINING CEDILLA}
-2: \u0041\u030A\u0064\u0327\u0307
+2: \\u0041\\u030A\\u0064\\u0327\\u0307
= {LATIN CAPITAL LETTER A}{COMBINING RING ABOVE}{LATIN SMALL LETTER D}{COMBINING CEDILLA}{COMBINING DOT ABOVE}
-3: \u0041\u030A\u1E0B\u0327
+3: \\u0041\\u030A\\u1E0B\\u0327
= {LATIN CAPITAL LETTER A}{COMBINING RING ABOVE}{LATIN SMALL LETTER D WITH DOT ABOVE}{COMBINING CEDILLA}
-4: \u0041\u030A\u1E11\u0307
+4: \\u0041\\u030A\\u1E11\\u0307
= {LATIN CAPITAL LETTER A}{COMBINING RING ABOVE}{LATIN SMALL LETTER D WITH CEDILLA}{COMBINING DOT ABOVE}
-5: \u00C5\u0064\u0307\u0327
+5: \\u00C5\\u0064\\u0307\\u0327
= {LATIN CAPITAL LETTER A WITH RING ABOVE}{LATIN SMALL LETTER D}{COMBINING DOT ABOVE}{COMBINING CEDILLA}
-6: \u00C5\u0064\u0327\u0307
+6: \\u00C5\\u0064\\u0327\\u0307
= {LATIN CAPITAL LETTER A WITH RING ABOVE}{LATIN SMALL LETTER D}{COMBINING CEDILLA}{COMBINING DOT ABOVE}
-7: \u00C5\u1E0B\u0327
+7: \\u00C5\\u1E0B\\u0327
= {LATIN CAPITAL LETTER A WITH RING ABOVE}{LATIN SMALL LETTER D WITH DOT ABOVE}{COMBINING CEDILLA}
-8: \u00C5\u1E11\u0307
+8: \\u00C5\\u1E11\\u0307
= {LATIN CAPITAL LETTER A WITH RING ABOVE}{LATIN SMALL LETTER D WITH CEDILLA}{COMBINING DOT ABOVE}
-9: \u212B\u0064\u0307\u0327
+9: \\u212B\\u0064\\u0307\\u0327
= {ANGSTROM SIGN}{LATIN SMALL LETTER D}{COMBINING DOT ABOVE}{COMBINING CEDILLA}
-10: \u212B\u0064\u0327\u0307
+10: \\u212B\\u0064\\u0327\\u0307
= {ANGSTROM SIGN}{LATIN SMALL LETTER D}{COMBINING CEDILLA}{COMBINING DOT ABOVE}
-11: \u212B\u1E0B\u0327
+11: \\u212B\\u1E0B\\u0327
= {ANGSTROM SIGN}{LATIN SMALL LETTER D WITH DOT ABOVE}{COMBINING CEDILLA}
-12: \u212B\u1E11\u0307
+12: \\u212B\\u1E11\\u0307
= {ANGSTROM SIGN}{LATIN SMALL LETTER D WITH CEDILLA}{COMBINING DOT ABOVE}
*<br>Note: the code is intended for use with small strings, and is not suitable for larger ones,
* since it has not been optimized for that situation.
* Note, CanonicalIterator is not intended to be subclassed.
* @author M. Davis
* @author C++ port by V. Weinstein
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
-class U_COMMON_API CanonicalIterator : public UObject {
+class U_COMMON_API CanonicalIterator U_FINAL : public UObject {
public:
/**
* Construct a CanonicalIterator object
* @param source string to get results for
* @param status Fill-in parameter which receives the status of this operation.
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- CanonicalIterator(const UnicodeString &source, UErrorCode &status);
+ CanonicalIterator(const UnicodeString &source, UErrorCode &status);
/** Destructor
* Cleans pieces
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- ~CanonicalIterator();
+ virtual ~CanonicalIterator();
/**
* Gets the NFD form of the current source we are iterating over.
* @return gets the source: NOTE: it is the NFD form of source
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- UnicodeString getSource();
+ UnicodeString getSource();
/**
* Resets the iterator so that one can start again from the beginning.
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- void reset();
+ void reset();
/**
* Get the next canonically equivalent string.
- * <br><b>Warning: The strings are not guaranteed to be in any particular order.</b>
+ * <br><b>Warning: The strings are not guaranteed to be in any particular order.</b>
* @return the next string that is canonically equivalent. A bogus string is returned when
* the iteration is done.
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- UnicodeString next();
+ UnicodeString next();
/**
* Set a new source for this iterator. Allows object reuse.
* @param newSource the source string to iterate against. This allows the same iterator to be used
* while changing the source string, saving object creation.
* @param status Fill-in parameter which receives the status of this operation.
- * @draft ICU 2.4
+ * @stable ICU 2.4
*/
- void setSource(const UnicodeString &newSource, UErrorCode &status);
+ void setSource(const UnicodeString &newSource, UErrorCode &status);
+#ifndef U_HIDE_INTERNAL_API
/**
- * Dumb recursive implementation of permutation.
+ * Dumb recursive implementation of permutation.
* TODO: optimize
* @param source the string to find permutations for
* @param skipZeros determine if skip zeros
* @param result the results in a set.
* @param status Fill-in parameter which receives the status of this operation.
- * @internal
+ * @internal
*/
- static void permute(UnicodeString &source, UBool skipZeros, Hashtable *result, UErrorCode &status);
-
+ static void U_EXPORT2 permute(UnicodeString &source, UBool skipZeros, Hashtable *result, UErrorCode &status);
+#endif /* U_HIDE_INTERNAL_API */
+
/**
- * ICU "poor man's RTTI", returns a UClassID for the actual class.
+ * ICU "poor man's RTTI", returns a UClassID for this class.
*
- * @draft ICU 2.2
+ * @stable ICU 2.2
*/
- virtual inline UClassID getDynamicClassID() const;
+ static UClassID U_EXPORT2 getStaticClassID();
/**
- * ICU "poor man's RTTI", returns a UClassID for this class.
+ * ICU "poor man's RTTI", returns a UClassID for the actual class.
*
- * @draft ICU 2.2
+ * @stable ICU 2.2
*/
- static inline UClassID getStaticClassID();
+ virtual UClassID getDynamicClassID() const;
private:
// ===================== PRIVATES ==============================
// private default constructor
- CanonicalIterator();
-
+ CanonicalIterator();
+
/**
* Copy constructor. Private for now.
- * @internal
+ * @internal (private)
*/
CanonicalIterator(const CanonicalIterator& other);
/**
* Assignment operator. Private for now.
- * @internal
+ * @internal (private)
*/
CanonicalIterator& operator=(const CanonicalIterator& other);
// current is used in iterating to combine pieces
int32_t *current;
int32_t current_length;
-
+
// transient fields
UnicodeString buffer;
-
+
+ const Normalizer2 &nfd;
+ const Normalizer2Impl &nfcImpl;
+
// we have a segment, in NFD. Find all the strings that are canonically equivalent to it.
UnicodeString *getEquivalents(const UnicodeString &segment, int32_t &result_len, UErrorCode &status); //private String[] getEquivalents(String segment)
-
+
//Set getEquivalents2(String segment);
- Hashtable *getEquivalents2(const UChar *segment, int32_t segLen, UErrorCode &status);
+ Hashtable *getEquivalents2(Hashtable *fillinResult, const char16_t *segment, int32_t segLen, UErrorCode &status);
//Hashtable *getEquivalents2(const UnicodeString &segment, int32_t segLen, UErrorCode &status);
-
+
/**
- * See if the decomposition of cp2 is at segment starting at segmentPos
+ * See if the decomposition of cp2 is at segment starting at segmentPos
* (with canonical rearrangment!)
- * If so, take the remainder, and return the equivalents
+ * If so, take the remainder, and return the equivalents
*/
//Set extract(int comp, String segment, int segmentPos, StringBuffer buffer);
- Hashtable *extract(UChar32 comp, const UChar *segment, int32_t segLen, int32_t segmentPos, UErrorCode &status);
+ Hashtable *extract(Hashtable *fillinResult, UChar32 comp, const char16_t *segment, int32_t segLen, int32_t segmentPos, UErrorCode &status);
//Hashtable *extract(UChar32 comp, const UnicodeString &segment, int32_t segLen, int32_t segmentPos, UErrorCode &status);
void cleanPieces();
- /**
- * The address of this static class variable serves as this class's ID
- * for ICU "poor man's RTTI".
- */
- static const char fgClassID;
};
-inline UClassID
-CanonicalIterator::getStaticClassID()
-{ return (UClassID)&fgClassID; }
-
-inline UClassID
-CanonicalIterator::getDynamicClassID() const
-{ return CanonicalIterator::getStaticClassID(); }
-
U_NAMESPACE_END
+#endif // U_SHOW_CPLUSPLUS_API
#endif /* #if !UCONFIG_NO_NORMALIZATION */
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