ICU 67.1: strenum.h Source File

00001 // © 2016 and later: Unicode, Inc. and others.
00002 // License & terms of use: http://www.unicode.org/copyright.html
00003 /*
00004 *******************************************************************************
00005 *
00006 *   Copyright (C) 2002-2012, International Business Machines
00007 *   Corporation and others.  All Rights Reserved.
00008 *
00009 *******************************************************************************
00010 */
00011 
00012 #ifndef STRENUM_H
00013 #define STRENUM_H
00014 
00015 #include "unicode/utypes.h"
00016 
00017 #if U_SHOW_CPLUSPLUS_API
00018 
00019 #include "unicode/uobject.h"
00020 #include "unicode/unistr.h"
00021 
00027 U_NAMESPACE_BEGIN
00028 
00061 class U_COMMON_API StringEnumeration : public UObject { 
00062 public:
00067     virtual ~StringEnumeration();
00068 
00081     virtual StringEnumeration *clone() const;
00082 
00100     virtual int32_t count(UErrorCode& status) const = 0;
00101 
00132     virtual const char* next(int32_t *resultLength, UErrorCode& status);
00133 
00157     virtual const char16_t* unext(int32_t *resultLength, UErrorCode& status);
00158 
00179     virtual const UnicodeString* snext(UErrorCode& status);
00180 
00193     virtual void reset(UErrorCode& status) = 0;
00194 
00202     virtual UBool operator==(const StringEnumeration& that)const;
00210     virtual UBool operator!=(const StringEnumeration& that)const;
00211 
00212 protected:
00217     UnicodeString unistr;
00222     char charsBuffer[32];
00228     char *chars;
00233     int32_t charsCapacity;
00234 
00239     StringEnumeration();
00240 
00249     void ensureCharsCapacity(int32_t capacity, UErrorCode &status);
00250 
00273     UnicodeString *setChars(const char *s, int32_t length, UErrorCode &status);
00274 };
00275 
00276 U_NAMESPACE_END
00277 
00278 #endif /* U_SHOW_CPLUSPLUS_API */
00279 
00280 /* STRENUM_H */
00281 #endif