/src/icu/source/common/chariter.cpp
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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) 1999-2011, International Business Machines |
6 | | * Corporation and others. All Rights Reserved. |
7 | | ********************************************************************** |
8 | | */ |
9 | | |
10 | | #include "unicode/chariter.h" |
11 | | |
12 | | U_NAMESPACE_BEGIN |
13 | | |
14 | 0 | ForwardCharacterIterator::~ForwardCharacterIterator() {} |
15 | | ForwardCharacterIterator::ForwardCharacterIterator() |
16 | 0 | : UObject() |
17 | 0 | {} |
18 | | ForwardCharacterIterator::ForwardCharacterIterator(const ForwardCharacterIterator &other) |
19 | 0 | : UObject(other) |
20 | 0 | {} |
21 | | |
22 | | |
23 | | CharacterIterator::CharacterIterator() |
24 | 0 | : textLength(0), pos(0), begin(0), end(0) { |
25 | 0 | } |
26 | | |
27 | | CharacterIterator::CharacterIterator(int32_t length) |
28 | 0 | : textLength(length), pos(0), begin(0), end(length) { |
29 | 0 | if(textLength < 0) { |
30 | 0 | textLength = end = 0; |
31 | 0 | } |
32 | 0 | } |
33 | | |
34 | | CharacterIterator::CharacterIterator(int32_t length, int32_t position) |
35 | 0 | : textLength(length), pos(position), begin(0), end(length) { |
36 | 0 | if(textLength < 0) { |
37 | 0 | textLength = end = 0; |
38 | 0 | } |
39 | 0 | if(pos < 0) { |
40 | 0 | pos = 0; |
41 | 0 | } else if(pos > end) { |
42 | 0 | pos = end; |
43 | 0 | } |
44 | 0 | } |
45 | | |
46 | | CharacterIterator::CharacterIterator(int32_t length, int32_t textBegin, int32_t textEnd, int32_t position) |
47 | 0 | : textLength(length), pos(position), begin(textBegin), end(textEnd) { |
48 | 0 | if(textLength < 0) { |
49 | 0 | textLength = 0; |
50 | 0 | } |
51 | 0 | if(begin < 0) { |
52 | 0 | begin = 0; |
53 | 0 | } else if(begin > textLength) { |
54 | 0 | begin = textLength; |
55 | 0 | } |
56 | 0 | if(end < begin) { |
57 | 0 | end = begin; |
58 | 0 | } else if(end > textLength) { |
59 | 0 | end = textLength; |
60 | 0 | } |
61 | 0 | if(pos < begin) { |
62 | 0 | pos = begin; |
63 | 0 | } else if(pos > end) { |
64 | 0 | pos = end; |
65 | 0 | } |
66 | 0 | } |
67 | | |
68 | | CharacterIterator::~CharacterIterator() {} |
69 | | |
70 | | CharacterIterator::CharacterIterator(const CharacterIterator &that) : |
71 | 0 | ForwardCharacterIterator(that), |
72 | 0 | textLength(that.textLength), pos(that.pos), begin(that.begin), end(that.end) |
73 | 0 | { |
74 | 0 | } |
75 | | |
76 | | CharacterIterator & |
77 | 0 | CharacterIterator::operator=(const CharacterIterator &that) { |
78 | 0 | ForwardCharacterIterator::operator=(that); |
79 | 0 | textLength = that.textLength; |
80 | 0 | pos = that.pos; |
81 | 0 | begin = that.begin; |
82 | 0 | end = that.end; |
83 | 0 | return *this; |
84 | 0 | } |
85 | | |
86 | | // implementing first[32]PostInc() directly in a subclass should be faster |
87 | | // but these implementations make subclassing a little easier |
88 | | UChar |
89 | 0 | CharacterIterator::firstPostInc(void) { |
90 | 0 | setToStart(); |
91 | 0 | return nextPostInc(); |
92 | 0 | } |
93 | | |
94 | | UChar32 |
95 | 0 | CharacterIterator::first32PostInc(void) { |
96 | 0 | setToStart(); |
97 | 0 | return next32PostInc(); |
98 | 0 | } |
99 | | |
100 | | U_NAMESPACE_END |