ICU 50.1.2  50.1.2
usetiter.h
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1 /*
2 **********************************************************************
3 * Copyright (c) 2002-2008, International Business Machines
4 * Corporation and others. All Rights Reserved.
5 **********************************************************************
6 */
7 #ifndef USETITER_H
8 #define USETITER_H
9 
10 #include "unicode/utypes.h"
11 #include "unicode/uobject.h"
12 #include "unicode/unistr.h"
13 
20 
21 class UnicodeSet;
22 class UnicodeString;
23 
62 
63  protected:
64 
71  enum { IS_STRING = -1 };
72 
79 
90 
98 
99  public:
100 
107  UnicodeSetIterator(const UnicodeSet& set);
108 
116 
121  virtual ~UnicodeSetIterator();
122 
138  inline UBool isString() const;
139 
145  inline UChar32 getCodepoint() const;
146 
153  inline UChar32 getCodepointEnd() const;
154 
166  const UnicodeString& getString();
167 
190  UBool next();
191 
211  UBool nextRange();
212 
220  void reset(const UnicodeSet& set);
221 
226  void reset();
227 
233  static UClassID U_EXPORT2 getStaticClassID();
234 
240  virtual UClassID getDynamicClassID() const;
241 
242  // ======================= PRIVATES ===========================
243 
244  protected:
245 
246  // endElement and nextElements are really UChar32's, but we keep
247  // them as signed int32_t's so we can do comparisons with
248  // endElement set to -1. Leave them as int32_t's.
252  const UnicodeSet* set;
256  int32_t endRange;
260  int32_t range;
264  int32_t endElement;
268  int32_t nextElement;
269  //UBool abbreviated;
273  int32_t nextString;
277  int32_t stringCount;
278 
285 
289  UnicodeSetIterator(const UnicodeSetIterator&); // disallow
290 
294  UnicodeSetIterator& operator=(const UnicodeSetIterator&); // disallow
295 
299  virtual void loadRange(int32_t range);
300 
301 };
302 
303 inline UBool UnicodeSetIterator::isString() const {
304  return codepoint == (UChar32)IS_STRING;
305 }
306 
307 inline UChar32 UnicodeSetIterator::getCodepoint() const {
308  return codepoint;
309 }
310 
311 inline UChar32 UnicodeSetIterator::getCodepointEnd() const {
312  return codepointEnd;
313 }
314 
315 
317 
318 #endif
const UnicodeString * string
If codepoint == IS_STRING, then string points to the current string.
Definition: usetiter.h:97
UChar32 codepoint
Current code point, or the special value IS_STRING, if the iterator points to a string.
Definition: usetiter.h:78
int32_t nextString
Next string.
Definition: usetiter.h:273
virtual UClassID getDynamicClassID() const =0
ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.
C++ API: Unicode String.
UnicodeSetIterator iterates over the contents of a UnicodeSet.
Definition: usetiter.h:61
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
UChar32 codepointEnd
When iterating over ranges using nextRange(), codepointEnd contains the inclusive end of the iteratio...
Definition: usetiter.h:89
int32_t endElement
End element.
Definition: usetiter.h:264
const UnicodeSet * set
The set.
Definition: usetiter.h:252
int32_t range
Range.
Definition: usetiter.h:260
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
Definition: uversion.h:129
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition: umachine.h:298
UnicodeString * cpString
Points to the string to use when the caller asks for a string and the current iteration item is a cod...
Definition: usetiter.h:284
A mutable set of Unicode characters and multicharacter strings.
Definition: uniset.h:273
C++ API: Common ICU base class UObject.
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
Definition: uversion.h:130
int32_t endRange
End range.
Definition: usetiter.h:256
int32_t stringCount
String count.
Definition: usetiter.h:277
Basic definitions for ICU, for both C and C++ APIs.
#define U_COMMON_API
Set to export library symbols from inside the common library, and to import them from outside...
Definition: utypes.h:357
int32_t nextElement
Next element.
Definition: usetiter.h:268
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:246
UObject is the common ICU "boilerplate" class.
Definition: uobject.h:229
int8_t UBool
The ICU boolean type.
Definition: umachine.h:200