1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (c) 2002-2012, International Business Machines Corporation
* and others. All Rights Reserved.
**********************************************************************
* Date Name Description
* 02/04/2002 aliu Creation.
**********************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_TRANSLITERATION
#include "unicode/translit.h"
#include "unicode/uniset.h"
#include "funcrepl.h"
static const UChar AMPERSAND = 38; // '&'
static const UChar OPEN[] = {40,32,0}; // "( "
static const UChar CLOSE[] = {32,41,0}; // " )"
U_NAMESPACE_BEGIN
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(FunctionReplacer)
/**
* Construct a replacer that takes the output of the given
* replacer, passes it through the given transliterator, and emits
* the result as output.
*/
FunctionReplacer::FunctionReplacer(Transliterator* adoptedTranslit,
UnicodeFunctor* adoptedReplacer) {
translit = adoptedTranslit;
replacer = adoptedReplacer;
}
/**
* Copy constructor.
*/
FunctionReplacer::FunctionReplacer(const FunctionReplacer& other) :
UnicodeFunctor(other),
UnicodeReplacer(other)
{
translit = other.translit->clone();
replacer = other.replacer->clone();
}
/**
* Destructor
*/
FunctionReplacer::~FunctionReplacer() {
delete translit;
delete replacer;
}
/**
* Implement UnicodeFunctor
*/
UnicodeFunctor* FunctionReplacer::clone() const {
return new FunctionReplacer(*this);
}
/**
* UnicodeFunctor API. Cast 'this' to a UnicodeReplacer* pointer
* and return the pointer.
*/
UnicodeReplacer* FunctionReplacer::toReplacer() const {
FunctionReplacer *nonconst_this = const_cast<FunctionReplacer *>(this);
UnicodeReplacer *nonconst_base = static_cast<UnicodeReplacer *>(nonconst_this);
return nonconst_base;
}
/**
* UnicodeReplacer API
*/
int32_t FunctionReplacer::replace(Replaceable& text,
int32_t start,
int32_t limit,
int32_t& cursor)
{
// First delegate to subordinate replacer
int32_t len = replacer->toReplacer()->replace(text, start, limit, cursor);
limit = start + len;
// Now transliterate
limit = translit->transliterate(text, start, limit);
return limit - start;
}
/**
* UnicodeReplacer API
*/
UnicodeString& FunctionReplacer::toReplacerPattern(UnicodeString& rule,
UBool escapeUnprintable) const {
UnicodeString str;
rule.truncate(0);
rule.append(AMPERSAND);
rule.append(translit->getID());
rule.append(OPEN, 2);
rule.append(replacer->toReplacer()->toReplacerPattern(str, escapeUnprintable));
rule.append(CLOSE, 2);
return rule;
}
/**
* Implement UnicodeReplacer
*/
void FunctionReplacer::addReplacementSetTo(UnicodeSet& toUnionTo) const {
UnicodeSet set;
toUnionTo.addAll(translit->getTargetSet(set));
}
/**
* UnicodeFunctor API
*/
void FunctionReplacer::setData(const TransliterationRuleData* d) {
replacer->setData(d);
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_TRANSLITERATION */
//eof
|
