ICU 60.2 60.2

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rep.h
Go to the documentation of this file.
1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **************************************************************************
5 * Copyright (C) 1999-2012, International Business Machines Corporation and
6 * others. All Rights Reserved.
7 **************************************************************************
8 * Date Name Description
9 * 11/17/99 aliu Creation. Ported from java. Modified to
10 * match current UnicodeString API. Forced
11 * to use name "handleReplaceBetween" because
12 * of existing methods in UnicodeString.
13 **************************************************************************
14 */
15
16 #ifndef REP_H
17 #define REP_H
18
19 #include "unicode/uobject.h"
20
26 U_NAMESPACE_BEGIN
27
28 class UnicodeString;
29
73 class U_COMMON_API Replaceable : public UObject {
74
75 public:
80 virtual ~Replaceable();
81
87 inline int32_t length() const;
88
96 inline char16_t charAt(int32_t offset) const;
97
110 inline UChar32 char32At(int32_t offset) const;
111
122 virtual void extractBetween(int32_t start,
123 int32_t limit,
124 UnicodeString& target) const = 0;
125
146 virtual void handleReplaceBetween(int32_t start,
147 int32_t limit,
148 const UnicodeString& text) = 0;
149 // Note: All other methods in this class take the names of
150 // existing UnicodeString methods. This method is the exception.
151 // It is named differently because all replace methods of
152 // UnicodeString return a UnicodeString&. The 'between' is
153 // required in order to conform to the UnicodeString naming
154 // convention; API taking start/length are named <operation>, and
155 // those taking start/limit are named <operationBetween>. The
156 // 'handle' is added because 'replaceBetween' and
157 // 'doReplaceBetween' are already taken.
158
174 virtual void copy(int32_t start, int32_t limit, int32_t dest) = 0;
175
185 virtual UBool hasMetaData() const;
186
202 virtual Replaceable *clone() const;
203
204 protected:
205
210 inline Replaceable();
211
212 /*
213 * Assignment operator not declared. The compiler will provide one
214 * which does nothing since this class does not contain any data members.
215 * API/code coverage may show the assignment operator as present and
216 * untested - ignore.
217 * Subclasses need this assignment operator if they use compiler-provided
218 * assignment operators of their own. An alternative to not declaring one
219 * here would be to declare and empty-implement a protected or public one.
220 Replaceable &Replaceable::operator=(const Replaceable &);
221 */
222
227 virtual int32_t getLength() const = 0;
228
233 virtual char16_t getCharAt(int32_t offset) const = 0;
234
239 virtual UChar32 getChar32At(int32_t offset) const = 0;
240 };
241
242 inline Replaceable::Replaceable() {}
243
244 inline int32_t
245 Replaceable::length() const {
246 return getLength();
247 }
248
249 inline char16_t
250 Replaceable::charAt(int32_t offset) const {
251 return getCharAt(offset);
252 }
253
254 inline UChar32
255 Replaceable::char32At(int32_t offset) const {
256 return getChar32At(offset);
257 }
258
259 // There is no rep.cpp, see unistr.cpp for Replaceable function implementations.
260
261 U_NAMESPACE_END
262
263 #endif
icu::Replaceable::charAt
char16_t charAt(int32_t offset) const
Returns the 16-bit code unit at the given offset into the text.
Definition: rep.h:250
icu::Replaceable::char32At
UChar32 char32At(int32_t offset) const
Returns the 32-bit code point at the given 16-bit offset into the text.
Definition: rep.h:255
icu::Replaceable::Replaceable
Replaceable()
Default constructor.
Definition: rep.h:242
icu::Replaceable
Replaceable is an abstract base class representing a string of characters that supports the replaceme...
Definition: rep.h:73
U_NAMESPACE_BEGIN
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
Definition: uversion.h:131
UChar32
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition: umachine.h:396
uobject.h
C++ API: Common ICU base class UObject.
U_NAMESPACE_END
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
Definition: uversion.h:132
U_COMMON_API
#define U_COMMON_API
Set to export library symbols from inside the common library, and to import them from outside...
Definition: utypes.h:359
icu::Replaceable::length
int32_t length() const
Returns the number of 16-bit code units in the text.
Definition: rep.h:245
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:286
icu::UObject
UObject is the common ICU "boilerplate" class.
Definition: uobject.h:223
UBool
int8_t UBool
The ICU boolean type.
Definition: umachine.h:236