ICU 70.1  70.1
unifilt.h
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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 * Copyright (C) 1999-2010, International Business Machines Corporation and others.
6 * All Rights Reserved.
7 **********************************************************************
8 * Date Name Description
9 * 11/17/99 aliu Creation.
10 **********************************************************************
11 */
12 #ifndef UNIFILT_H
13 #define UNIFILT_H
14 
15 #include "unicode/utypes.h"
16 
17 #if U_SHOW_CPLUSPLUS_API
18 
19 #include "unicode/unifunct.h"
20 #include "unicode/unimatch.h"
21 
27 U_NAMESPACE_BEGIN
28 
37 #define U_ETHER ((char16_t)0xFFFF)
38 
66 
67 public:
72  virtual ~UnicodeFilter();
73 
80  virtual UnicodeFilter* clone() const override = 0;
81 
89  virtual UBool contains(UChar32 c) const = 0;
90 
96  virtual UnicodeMatcher* toMatcher() const override;
97 
102  virtual UMatchDegree matches(const Replaceable& text,
103  int32_t& offset,
104  int32_t limit,
105  UBool incremental) override;
106 
111  virtual void setData(const TransliterationRuleData*) override;
112 
118  static UClassID U_EXPORT2 getStaticClassID();
119 
120 protected:
121 
122  /*
123  * Since this class has pure virtual functions,
124  * a constructor can't be used.
125  * @stable ICU 2.0
126  */
127 /* UnicodeFilter();*/
128 };
129 
130 /*inline UnicodeFilter::UnicodeFilter() {}*/
131 
132 U_NAMESPACE_END
133 
134 #endif /* U_SHOW_CPLUSPLUS_API */
135 
136 #endif
Replaceable is an abstract base class representing a string of characters that supports the replaceme...
Definition: rep.h:77
UnicodeFilter defines a protocol for selecting a subset of the full range (U+0000 to U+10FFFF) of Uni...
Definition: unifilt.h:65
virtual UnicodeMatcher * toMatcher() const override
UnicodeFunctor API.
virtual void setData(const TransliterationRuleData *) override
UnicodeFunctor API.
static UClassID getStaticClassID()
ICU "poor man's RTTI", returns a UClassID for this class.
virtual UnicodeFilter * clone() const override=0
Clones this object polymorphically.
virtual ~UnicodeFilter()
Destructor.
virtual UMatchDegree matches(const Replaceable &text, int32_t &offset, int32_t limit, UBool incremental) override
Implement UnicodeMatcher API.
virtual UBool contains(UChar32 c) const =0
Returns true for characters that are in the selected subset.
UnicodeFunctor is an abstract base class for objects that perform match and/or replace operations on ...
Definition: unifunct.h:38
UnicodeMatcher defines a protocol for objects that can match a range of characters in a Replaceable s...
Definition: unimatch.h:71
UMatchDegree
Constants returned by UnicodeMatcher::matches() indicating the degree of match.
Definition: unimatch.h:33
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition: umachine.h:467
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
C++ API: Unicode Functor.
C++ API: Unicode Matcher.
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
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:300