| File: | out/../deps/icu-small/source/common/unifilt.cpp |
| Warning: | line 53, column 18 Although the value stored to 'c' is used in the enclosing expression, the value is never actually read from 'c' |
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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) 2001-2012, International Business Machines |
| 6 | * Corporation and others. All Rights Reserved. |
| 7 | ********************************************************************** |
| 8 | * Date Name Description |
| 9 | * 07/18/01 aliu Creation. |
| 10 | ********************************************************************** |
| 11 | */ |
| 12 | |
| 13 | #include "unicode/unifilt.h" |
| 14 | #include "unicode/rep.h" |
| 15 | #include "unicode/utf16.h" |
| 16 | |
| 17 | U_NAMESPACE_BEGINnamespace icu_71 { |
| 18 | UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(UnicodeFilter)UClassID UnicodeFilter::getStaticClassID() { static char classID = 0; return (UClassID)&classID; } |
| 19 | |
| 20 | |
| 21 | /* Define this here due to the lack of another file. |
| 22 | It can't be defined in the header */ |
| 23 | UnicodeMatcher::~UnicodeMatcher() {} |
| 24 | |
| 25 | UnicodeFilter::~UnicodeFilter() {} |
| 26 | |
| 27 | /** |
| 28 | * UnicodeFunctor API. |
| 29 | * Note that UnicodeMatcher is a base class of UnicodeFilter. |
| 30 | */ |
| 31 | UnicodeMatcher* UnicodeFilter::toMatcher() const { |
| 32 | return const_cast<UnicodeFilter *>(this); |
| 33 | } |
| 34 | |
| 35 | void UnicodeFilter::setData(const TransliterationRuleData*) {} |
| 36 | |
| 37 | /** |
| 38 | * Default implementation of UnicodeMatcher::matches() for Unicode |
| 39 | * filters. Matches a single code point at offset (either one or |
| 40 | * two 16-bit code units). |
| 41 | */ |
| 42 | UMatchDegree UnicodeFilter::matches(const Replaceable& text, |
| 43 | int32_t& offset, |
| 44 | int32_t limit, |
| 45 | UBool incremental) { |
| 46 | UChar32 c; |
| 47 | if (offset < limit && |
| 48 | contains(c = text.char32At(offset))) { |
| 49 | offset += U16_LENGTH(c)((uint32_t)(c)<=0xffff ? 1 : 2); |
| 50 | return U_MATCH; |
| 51 | } |
| 52 | if (offset > limit && |
| 53 | contains(c = text.char32At(offset))) { |
Although the value stored to 'c' is used in the enclosing expression, the value is never actually read from 'c' | |
| 54 | // Backup offset by 1, unless the preceding character is a |
| 55 | // surrogate pair -- then backup by 2 (keep offset pointing at |
| 56 | // the lead surrogate). |
| 57 | --offset; |
| 58 | if (offset >= 0) { |
| 59 | offset -= U16_LENGTH(text.char32At(offset))((uint32_t)(text.char32At(offset))<=0xffff ? 1 : 2) - 1; |
| 60 | } |
| 61 | return U_MATCH; |
| 62 | } |
| 63 | if (incremental && offset == limit) { |
| 64 | return U_PARTIAL_MATCH; |
| 65 | } |
| 66 | return U_MISMATCH; |
| 67 | } |
| 68 | |
| 69 | U_NAMESPACE_END} |
| 70 | |
| 71 | //eof |