ICU 63.1: 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/uobject.h"
00016 #include "unicode/unistr.h"
00017 
00023 U_NAMESPACE_BEGIN
00024 
00057 class U_COMMON_API StringEnumeration : public UObject { 
00058 public:
00063     virtual ~StringEnumeration();
00064 
00080     virtual StringEnumeration *clone() const;
00081 
00099     virtual int32_t count(UErrorCode& status) const = 0;
00100 
00131     virtual const char* next(int32_t *resultLength, UErrorCode& status);
00132 
00156     virtual const char16_t* unext(int32_t *resultLength, UErrorCode& status);
00157 
00178     virtual const UnicodeString* snext(UErrorCode& status);
00179 
00192     virtual void reset(UErrorCode& status) = 0;
00193 
00201     virtual UBool operator==(const StringEnumeration& that)const;
00209     virtual UBool operator!=(const StringEnumeration& that)const;
00210 
00211 protected:
00216     UnicodeString unistr;
00221     char charsBuffer[32];
00227     char *chars;
00232     int32_t charsCapacity;
00233 
00238     StringEnumeration();
00239 
00248     void ensureCharsCapacity(int32_t capacity, UErrorCode &status);
00249 
00272     UnicodeString *setChars(const char *s, int32_t length, UErrorCode &status);
00273 };
00274 
00275 U_NAMESPACE_END
00276 
00277 /* STRENUM_H */
00278 #endif