ICU 58.2 58.2

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search.h
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1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 **********************************************************************
5 * Copyright (C) 2001-2011 IBM and others. All rights reserved.
6 **********************************************************************
7 * Date Name Description
8 * 03/22/2000 helena Creation.
9 **********************************************************************
10 */
11
12 #ifndef SEARCH_H
13 #define SEARCH_H
14
15 #include "unicode/utypes.h"
16
22 #if !UCONFIG_NO_COLLATION && !UCONFIG_NO_BREAK_ITERATION
23
24 #include "unicode/uobject.h"
25 #include "unicode/unistr.h"
26 #include "unicode/chariter.h"
27 #include "unicode/brkiter.h"
28 #include "unicode/usearch.h"
29
33 struct USearch;
37 typedef struct USearch USearch;
38
39 U_NAMESPACE_BEGIN
40
81 class U_I18N_API SearchIterator : public UObject {
82
83 public:
84
85 // public constructors and destructors -------------------------------
86
93 SearchIterator(const SearchIterator &other);
94
99 virtual ~SearchIterator();
100
101 // public get and set methods ----------------------------------------
102
116 virtual void setOffset(int32_t position, UErrorCode &status) = 0;
117
126 virtual int32_t getOffset(void) const = 0;
127
137 void setAttribute(USearchAttribute attribute,
138 USearchAttributeValue value,
139 UErrorCode &status);
140
147 USearchAttributeValue getAttribute(USearchAttribute attribute) const;
148
165 int32_t getMatchedStart(void) const;
166
181 int32_t getMatchedLength(void) const;
182
197 void getMatchedText(UnicodeString &result) const;
198
214 void setBreakIterator(BreakIterator *breakiter, UErrorCode &status);
215
226 const BreakIterator * getBreakIterator(void) const;
227
238 virtual void setText(const UnicodeString &text, UErrorCode &status);
239
255 virtual void setText(CharacterIterator &text, UErrorCode &status);
256
262 const UnicodeString & getText(void) const;
263
264 // operator overloading ----------------------------------------------
265
274 virtual UBool operator==(const SearchIterator &that) const;
275
282 UBool operator!=(const SearchIterator &that) const;
283
284 // public methods ----------------------------------------------------
285
293 virtual SearchIterator* safeClone(void) const = 0;
294
308 int32_t first(UErrorCode &status);
309
327 int32_t following(int32_t position, UErrorCode &status);
328
342 int32_t last(UErrorCode &status);
343
367 int32_t preceding(int32_t position, UErrorCode &status);
368
383 int32_t next(UErrorCode &status);
384
398 int32_t previous(UErrorCode &status);
399
408 virtual void reset();
409
410 protected:
411 // protected data members ---------------------------------------------
412
417 USearch *m_search_;
418
427 BreakIterator *m_breakiterator_;
428
433 UnicodeString m_text_;
434
435 // protected constructors and destructors -----------------------------
436
442 SearchIterator();
443
459 SearchIterator(const UnicodeString &text,
460 BreakIterator *breakiter = NULL);
461
481 SearchIterator(CharacterIterator &text, BreakIterator *breakiter = NULL);
482
483 // protected methods --------------------------------------------------
484
491 SearchIterator & operator=(const SearchIterator &that);
492
512 virtual int32_t handleNext(int32_t position, UErrorCode &status)
513 = 0;
514
534 virtual int32_t handlePrev(int32_t position, UErrorCode &status)
535 = 0;
536
547 virtual void setMatchLength(int32_t length);
548
559 virtual void setMatchStart(int32_t position);
560
565 void setMatchNotFound();
566 };
567
568 inline UBool SearchIterator::operator!=(const SearchIterator &that) const
569 {
570 return !operator==(that);
571 }
572 U_NAMESPACE_END
573
574 #endif /* #if !UCONFIG_NO_COLLATION */
575
576 #endif
577
brkiter.h
C++ API: Break Iterator.
unistr.h
C++ API: Unicode String.
icu::operator==
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
usearch.h
C API: StringSearch.
USearchAttribute
USearchAttribute
Definition: usearch.h:163
U_I18N_API
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside...
Definition: utypes.h:360
U_NAMESPACE_BEGIN
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
Definition: uversion.h:131
icu::CharacterIterator
Abstract class that defines an API for iteration on text objects.
Definition: chariter.h:358
icu::BreakIterator
The BreakIterator class implements methods for finding the location of boundaries in text...
Definition: brkiter.h:102
icu::operator!=
UBool operator!=(const StringPiece &x, const StringPiece &y)
Global operator != for StringPiece.
Definition: stringpiece.h:220
icu::SearchIterator::operator!=
UBool operator!=(const SearchIterator &that) const
Not-equal operator.
Definition: search.h:568
USearchAttributeValue
USearchAttributeValue
Definition: usearch.h:205
NULL
#define NULL
Define NULL if necessary, to 0 for C++ and to ((void *)0) for C.
Definition: utypes.h:188
icu::SearchIterator::m_text_
UnicodeString m_text_
Unicode string version of the search text.
Definition: search.h:433
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
UErrorCode
UErrorCode
Error code to replace exception handling, so that the code is compatible with all C++ compilers...
Definition: utypes.h:396
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:295
chariter.h
C++ API: Character Iterator.
USearch
struct USearch USearch
Definition: search.h:37
icu::SearchIterator::m_search_
USearch * m_search_
C search data struct.
Definition: search.h:417
icu::SearchIterator
SearchIterator is an abstract base class that provides methods to search for a pattern within a text ...
Definition: search.h:81
icu::UObject
UObject is the common ICU "boilerplate" class.
Definition: uobject.h:223
icu::SearchIterator::m_breakiterator_
BreakIterator * m_breakiterator_
Break iterator.
Definition: search.h:427
UBool
int8_t UBool
The ICU boolean type.
Definition: umachine.h:259