ICU 70.1: uniset.h Source File

ICU 70.1 70.1

uniset.h
Go to the documentation of this file.
1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4***************************************************************************
5* Copyright (C) 1999-2016, International Business Machines Corporation
6* and others. All Rights Reserved.
7***************************************************************************
8* Date Name Description
9* 10/20/99 alan Creation.
10***************************************************************************
11*/
12
13#ifndef UNICODESET_H
14#define UNICODESET_H
15
16#include "unicode/utypes.h"
17
18#if U_SHOW_CPLUSPLUS_API
19
20#include "unicode/ucpmap.h"
21#include "unicode/unifilt.h"
22#include "unicode/unistr.h"
23#include "unicode/uset.h"
24
30U_NAMESPACE_BEGIN
31
32// Forward Declarations.
33class BMPSet;
34class ParsePosition;
35class RBBIRuleScanner;
36class SymbolTable;
37class UnicodeSetStringSpan;
38class UVector;
39class RuleCharacterIterator;
40
285 class U_COMMON_API UnicodeSet U_FINAL : public UnicodeFilter {
286private:
291 static constexpr int32_t INITIAL_CAPACITY = 25;
292 // fFlags constant
293 static constexpr uint8_t kIsBogus = 1; // This set is bogus (i.e. not valid)
294
295 UChar32* list = stackList; // MUST be terminated with HIGH
296 int32_t capacity = INITIAL_CAPACITY; // capacity of list
297 int32_t len = 1; // length of list used; 1 <= len <= capacity
298 uint8_t fFlags = 0; // Bit flag (see constants above)
299
300 BMPSet *bmpSet = nullptr; // The set is frozen iff either bmpSet or stringSpan is not NULL.
301 UChar32* buffer = nullptr; // internal buffer, may be NULL
302 int32_t bufferCapacity = 0; // capacity of buffer
303
313 char16_t *pat = nullptr;
314 int32_t patLen = 0;
315
316 UVector* strings = nullptr; // maintained in sorted order
317 UnicodeSetStringSpan *stringSpan = nullptr;
318
324 UChar32 stackList[INITIAL_CAPACITY];
325
326public:
336 inline UBool isBogus(void) const;
337
354 void setToBogus();
355
356public:
357
358 enum {
363 MIN_VALUE = 0,
364
369 MAX_VALUE = 0x10ffff
370 };
371
372 //----------------------------------------------------------------
373 // Constructors &c
374 //----------------------------------------------------------------
375
376public:
377
382 UnicodeSet();
383
392 UnicodeSet(UChar32 start, UChar32 end);
393
394#ifndef U_HIDE_INTERNAL_API
398 enum ESerialization {
399 kSerialized /* result of serialize() */
400 };
401
412 UnicodeSet(const uint16_t buffer[], int32_t bufferLen,
413 ESerialization serialization, UErrorCode &status);
414#endif /* U_HIDE_INTERNAL_API */
415
424 UnicodeSet(const UnicodeString& pattern,
425 UErrorCode& status);
426
427#ifndef U_HIDE_INTERNAL_API
440 UnicodeSet(const UnicodeString& pattern,
441 uint32_t options,
442 const SymbolTable* symbols,
443 UErrorCode& status);
444#endif /* U_HIDE_INTERNAL_API */
445
459 UnicodeSet(const UnicodeString& pattern, ParsePosition& pos,
460 uint32_t options,
461 const SymbolTable* symbols,
462 UErrorCode& status);
463
468 UnicodeSet(const UnicodeSet& o);
469
474 virtual ~UnicodeSet();
475
481 UnicodeSet& operator=(const UnicodeSet& o);
482
494 virtual bool operator==(const UnicodeSet& o) const;
495
501 inline bool operator!=(const UnicodeSet& o) const;
502
512 virtual UnicodeSet* clone() const override;
513
521 virtual int32_t hashCode(void) const;
522
531 inline static UnicodeSet *fromUSet(USet *uset);
532
541 inline static const UnicodeSet *fromUSet(const USet *uset);
542
550 inline USet *toUSet();
551
552
560 inline const USet * toUSet() const;
561
562
563 //----------------------------------------------------------------
564 // Freezable API
565 //----------------------------------------------------------------
566
575 inline UBool isFrozen() const;
576
590 UnicodeSet *freeze();
591
600 UnicodeSet *cloneAsThawed() const;
601
602 //----------------------------------------------------------------
603 // Public API
604 //----------------------------------------------------------------
605
615 UnicodeSet& set(UChar32 start, UChar32 end);
616
622 static UBool resemblesPattern(const UnicodeString& pattern,
623 int32_t pos);
624
637 UnicodeSet& applyPattern(const UnicodeString& pattern,
638 UErrorCode& status);
639
640#ifndef U_HIDE_INTERNAL_API
657 UnicodeSet& applyPattern(const UnicodeString& pattern,
658 uint32_t options,
659 const SymbolTable* symbols,
660 UErrorCode& status);
661#endif /* U_HIDE_INTERNAL_API */
662
694 UnicodeSet& applyPattern(const UnicodeString& pattern,
695 ParsePosition& pos,
696 uint32_t options,
697 const SymbolTable* symbols,
698 UErrorCode& status);
699
713 virtual UnicodeString& toPattern(UnicodeString& result,
714 UBool escapeUnprintable = false) const override;
715
738 UnicodeSet& applyIntPropertyValue(UProperty prop,
739 int32_t value,
740 UErrorCode& ec);
741
771 UnicodeSet& applyPropertyAlias(const UnicodeString& prop,
772 const UnicodeString& value,
773 UErrorCode& ec);
774
787 virtual int32_t size(void) const;
788
795 virtual UBool isEmpty(void) const;
796
797#ifndef U_HIDE_DRAFT_API
802 UBool hasStrings() const;
803#endif // U_HIDE_DRAFT_API
804
812 virtual UBool contains(UChar32 c) const override;
813
822 virtual UBool contains(UChar32 start, UChar32 end) const;
823
831 UBool contains(const UnicodeString& s) const;
832
840 virtual UBool containsAll(const UnicodeSet& c) const;
841
849 UBool containsAll(const UnicodeString& s) const;
850
859 UBool containsNone(UChar32 start, UChar32 end) const;
860
868 UBool containsNone(const UnicodeSet& c) const;
869
877 UBool containsNone(const UnicodeString& s) const;
878
887 inline UBool containsSome(UChar32 start, UChar32 end) const;
888
896 inline UBool containsSome(const UnicodeSet& s) const;
897
905 inline UBool containsSome(const UnicodeString& s) const;
906
925 int32_t span(const char16_t *s, int32_t length, USetSpanCondition spanCondition) const;
926
939 inline int32_t span(const UnicodeString &s, int32_t start, USetSpanCondition spanCondition) const;
940
958 int32_t spanBack(const char16_t *s, int32_t length, USetSpanCondition spanCondition) const;
959
973 inline int32_t spanBack(const UnicodeString &s, int32_t limit, USetSpanCondition spanCondition) const;
974
993 int32_t spanUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const;
994
1012 int32_t spanBackUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const;
1013
1018 virtual UMatchDegree matches(const Replaceable& text,
1019 int32_t& offset,
1020 int32_t limit,
1021 UBool incremental) override;
1022
1023private:
1046 static int32_t matchRest(const Replaceable& text,
1047 int32_t start, int32_t limit,
1048 const UnicodeString& s);
1049
1059 int32_t findCodePoint(UChar32 c) const;
1060
1061public:
1062
1070 virtual void addMatchSetTo(UnicodeSet& toUnionTo) const override;
1071
1080 int32_t indexOf(UChar32 c) const;
1081
1097 UChar32 charAt(int32_t index) const;
1098
1113 virtual UnicodeSet& add(UChar32 start, UChar32 end);
1114
1125 UnicodeSet& add(UChar32 c);
1126
1138 UnicodeSet& add(const UnicodeString& s);
1139
1140 private:
1146 static int32_t getSingleCP(const UnicodeString& s);
1147
1148 void _add(const UnicodeString& s);
1149
1150 public:
1159 UnicodeSet& addAll(const UnicodeString& s);
1160
1168 UnicodeSet& retainAll(const UnicodeString& s);
1169
1177 UnicodeSet& complementAll(const UnicodeString& s);
1178
1186 UnicodeSet& removeAll(const UnicodeString& s);
1187
1196 static UnicodeSet* U_EXPORT2 createFrom(const UnicodeString& s);
1197
1198
1206 static UnicodeSet* U_EXPORT2 createFromAll(const UnicodeString& s);
1207
1219 virtual UnicodeSet& retain(UChar32 start, UChar32 end);
1220
1221
1230 UnicodeSet& retain(UChar32 c);
1231
1232#ifndef U_HIDE_DRAFT_API
1243 UnicodeSet& retain(const UnicodeString &s);
1244#endif // U_HIDE_DRAFT_API
1245
1259 virtual UnicodeSet& remove(UChar32 start, UChar32 end);
1260
1271 UnicodeSet& remove(UChar32 c);
1272
1282 UnicodeSet& remove(const UnicodeString& s);
1283
1296 virtual UnicodeSet& complement();
1297
1310 virtual UnicodeSet& complement(UChar32 start, UChar32 end);
1311
1322 UnicodeSet& complement(UChar32 c);
1323
1333 UnicodeSet& complement(const UnicodeString& s);
1334
1347 virtual UnicodeSet& addAll(const UnicodeSet& c);
1348
1360 virtual UnicodeSet& retainAll(const UnicodeSet& c);
1361
1373 virtual UnicodeSet& removeAll(const UnicodeSet& c);
1374
1385 virtual UnicodeSet& complementAll(const UnicodeSet& c);
1386
1393 virtual UnicodeSet& clear(void);
1394
1420 UnicodeSet& closeOver(int32_t attribute);
1421
1428 virtual UnicodeSet &removeAllStrings();
1429
1437 virtual int32_t getRangeCount(void) const;
1438
1446 virtual UChar32 getRangeStart(int32_t index) const;
1447
1455 virtual UChar32 getRangeEnd(int32_t index) const;
1456
1505 int32_t serialize(uint16_t *dest, int32_t destCapacity, UErrorCode& ec) const;
1506
1513 virtual UnicodeSet& compact();
1514
1526 static UClassID U_EXPORT2 getStaticClassID(void);
1527
1536 virtual UClassID getDynamicClassID(void) const override;
1537
1538private:
1539
1540 // Private API for the USet API
1541
1542 friend class USetAccess;
1543
1544 const UnicodeString* getString(int32_t index) const;
1545
1546 //----------------------------------------------------------------
1547 // RuleBasedTransliterator support
1548 //----------------------------------------------------------------
1549
1550private:
1551
1557 virtual UBool matchesIndexValue(uint8_t v) const override;
1558
1559private:
1560 friend class RBBIRuleScanner;
1561
1562 //----------------------------------------------------------------
1563 // Implementation: Clone as thawed (see ICU4J Freezable)
1564 //----------------------------------------------------------------
1565
1566 UnicodeSet(const UnicodeSet& o, UBool /* asThawed */);
1567 UnicodeSet& copyFrom(const UnicodeSet& o, UBool asThawed);
1568
1569 //----------------------------------------------------------------
1570 // Implementation: Pattern parsing
1571 //----------------------------------------------------------------
1572
1573 void applyPatternIgnoreSpace(const UnicodeString& pattern,
1574 ParsePosition& pos,
1575 const SymbolTable* symbols,
1576 UErrorCode& status);
1577
1578 void applyPattern(RuleCharacterIterator& chars,
1579 const SymbolTable* symbols,
1580 UnicodeString& rebuiltPat,
1581 uint32_t options,
1582 UnicodeSet& (UnicodeSet::*caseClosure)(int32_t attribute),
1583 int32_t depth,
1584 UErrorCode& ec);
1585
1586 //----------------------------------------------------------------
1587 // Implementation: Utility methods
1588 //----------------------------------------------------------------
1589
1590 static int32_t nextCapacity(int32_t minCapacity);
1591
1592 bool ensureCapacity(int32_t newLen);
1593
1594 bool ensureBufferCapacity(int32_t newLen);
1595
1596 void swapBuffers(void);
1597
1598 UBool allocateStrings(UErrorCode &status);
1599 int32_t stringsSize() const;
1600 UBool stringsContains(const UnicodeString &s) const;
1601
1602 UnicodeString& _toPattern(UnicodeString& result,
1603 UBool escapeUnprintable) const;
1604
1605 UnicodeString& _generatePattern(UnicodeString& result,
1606 UBool escapeUnprintable) const;
1607
1608 static void _appendToPat(UnicodeString& buf, const UnicodeString& s, UBool escapeUnprintable);
1609
1610 static void _appendToPat(UnicodeString& buf, UChar32 c, UBool escapeUnprintable);
1611
1612 static void _appendToPat(UnicodeString &result, UChar32 start, UChar32 end,
1613 UBool escapeUnprintable);
1614
1615 //----------------------------------------------------------------
1616 // Implementation: Fundamental operators
1617 //----------------------------------------------------------------
1618
1619 void exclusiveOr(const UChar32* other, int32_t otherLen, int8_t polarity);
1620
1621 void add(const UChar32* other, int32_t otherLen, int8_t polarity);
1622
1623 void retain(const UChar32* other, int32_t otherLen, int8_t polarity);
1624
1630 static UBool resemblesPropertyPattern(const UnicodeString& pattern,
1631 int32_t pos);
1632
1633 static UBool resemblesPropertyPattern(RuleCharacterIterator& chars,
1634 int32_t iterOpts);
1635
1675 UnicodeSet& applyPropertyPattern(const UnicodeString& pattern,
1676 ParsePosition& ppos,
1677 UErrorCode &ec);
1678
1679 void applyPropertyPattern(RuleCharacterIterator& chars,
1680 UnicodeString& rebuiltPat,
1681 UErrorCode& ec);
1682
1683 static const UnicodeSet* getInclusions(int32_t src, UErrorCode &status);
1684
1689 typedef UBool (*Filter)(UChar32 codePoint, void* context);
1690
1700 void applyFilter(Filter filter,
1701 void* context,
1702 const UnicodeSet* inclusions,
1703 UErrorCode &status);
1704
1705 // UCPMap is now stable ICU 63
1706 void applyIntPropertyValue(const UCPMap *map,
1707 UCPMapValueFilter *filter, const void *context,
1708 UErrorCode &errorCode);
1709
1713 void setPattern(const UnicodeString& newPat) {
1714 setPattern(newPat.getBuffer(), newPat.length());
1715 }
1716 void setPattern(const char16_t *newPat, int32_t newPatLen);
1720 void releasePattern();
1721
1722 friend class UnicodeSetIterator;
1723};
1724
1725
1726
1727 inline bool UnicodeSet::operator!=(const UnicodeSet& o) const {
1728 return !operator==(o);
1729}
1730
1731 inline UBool UnicodeSet::isFrozen() const {
1732 return (UBool)(bmpSet!=NULL || stringSpan!=NULL);
1733}
1734
1735 inline UBool UnicodeSet::containsSome(UChar32 start, UChar32 end) const {
1736 return !containsNone(start, end);
1737}
1738
1739 inline UBool UnicodeSet::containsSome(const UnicodeSet& s) const {
1740 return !containsNone(s);
1741}
1742
1743 inline UBool UnicodeSet::containsSome(const UnicodeString& s) const {
1744 return !containsNone(s);
1745}
1746
1747 inline UBool UnicodeSet::isBogus() const {
1748 return (UBool)(fFlags & kIsBogus);
1749}
1750
1751 inline UnicodeSet *UnicodeSet::fromUSet(USet *uset) {
1752 return reinterpret_cast<UnicodeSet *>(uset);
1753}
1754
1755 inline const UnicodeSet *UnicodeSet::fromUSet(const USet *uset) {
1756 return reinterpret_cast<const UnicodeSet *>(uset);
1757}
1758
1759 inline USet *UnicodeSet::toUSet() {
1760 return reinterpret_cast<USet *>(this);
1761}
1762
1763 inline const USet *UnicodeSet::toUSet() const {
1764 return reinterpret_cast<const USet *>(this);
1765}
1766
1767 inline int32_t UnicodeSet::span(const UnicodeString &s, int32_t start, USetSpanCondition spanCondition) const {
1768 int32_t sLength=s.length();
1769 if(start<0) {
1770 start=0;
1771 } else if(start>sLength) {
1772 start=sLength;
1773 }
1774 return start+span(s.getBuffer()+start, sLength-start, spanCondition);
1775}
1776
1777 inline int32_t UnicodeSet::spanBack(const UnicodeString &s, int32_t limit, USetSpanCondition spanCondition) const {
1778 int32_t sLength=s.length();
1779 if(limit<0) {
1780 limit=0;
1781 } else if(limit>sLength) {
1782 limit=sLength;
1783 }
1784 return spanBack(s.getBuffer(), limit, spanCondition);
1785}
1786
1787U_NAMESPACE_END
1788
1789#endif /* U_SHOW_CPLUSPLUS_API */
1790
1791#endif
INITIAL_CAPACITY
#define INITIAL_CAPACITY
The initial size of an array if it is unspecified.
Definition: RunArrays.h:32
icu::ParsePosition
ParsePosition is a simple class used by Format and its subclasses to keep track of the current positi...
Definition: parsepos.h:52
icu::Replaceable
Replaceable is an abstract base class representing a string of characters that supports the replaceme...
Definition: rep.h:77
icu::SymbolTable
An interface that defines both lookup protocol and parsing of symbolic names.
Definition: symtable.h:59
icu::UnicodeFilter
UnicodeFilter defines a protocol for selecting a subset of the full range (U+0000 to U+10FFFF) of Uni...
Definition: unifilt.h:65
icu::UnicodeMatcher::matchesIndexValue
virtual UBool matchesIndexValue(uint8_t v) const =0
Returns true if this matcher will match a character c, where c & 0xFF == v, at offset,...
icu::UnicodeSetIterator
UnicodeSetIterator iterates over the contents of a UnicodeSet.
Definition: usetiter.h:67
icu::UnicodeSet
A mutable set of Unicode characters and multicharacter strings.
Definition: uniset.h:285
icu::UnicodeSet::ESerialization
ESerialization
Definition: uniset.h:398
icu::UnicodeSet::operator=
UnicodeSet & operator=(const UnicodeSet &o)
Assigns this object to be a copy of another.
icu::UnicodeSet::addAll
UnicodeSet & addAll(const UnicodeString &s)
Adds each of the characters in this string to the set.
icu::UnicodeSet::getRangeEnd
virtual UChar32 getRangeEnd(int32_t index) const
Iteration method that returns the last character in the specified range of this set.
icu::UnicodeSet::UnicodeSet
UnicodeSet()
Constructs an empty set.
icu::UnicodeSet::spanBackUTF8
int32_t spanBackUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const
Returns the start of the trailing substring of the input string which consists only of characters and...
icu::UnicodeSet::UnicodeSet
UnicodeSet(UChar32 start, UChar32 end)
Constructs a set containing the given range.
icu::UnicodeSet::createFromAll
static UnicodeSet * createFromAll(const UnicodeString &s)
Makes a set from each of the characters in the string.
icu::UnicodeSet::spanUTF8
int32_t spanUTF8(const char *s, int32_t length, USetSpanCondition spanCondition) const
Returns the length of the initial substring of the input string which consists only of characters and...
icu::UnicodeSet::complementAll
UnicodeSet & complementAll(const UnicodeString &s)
Complement EACH of the characters in this string.
icu::UnicodeSet::setToBogus
void setToBogus()
Make this UnicodeSet object invalid.
icu::UnicodeSet::clone
virtual UnicodeSet * clone() const override
Returns a copy of this object.
icu::UnicodeSet::applyPropertyAlias
UnicodeSet & applyPropertyAlias(const UnicodeString &prop, const UnicodeString &value, UErrorCode &ec)
Modifies this set to contain those code points which have the given value for the given property.
icu::UnicodeSet::removeAll
virtual UnicodeSet & removeAll(const UnicodeSet &c)
Removes from this set all of its elements that are contained in the specified set.
icu::UnicodeSet::remove
virtual UnicodeSet & remove(UChar32 start, UChar32 end)
Removes the specified range from this set if it is present.
icu::UnicodeSet::applyPattern
UnicodeSet & applyPattern(const UnicodeString &pattern, UErrorCode &status)
Modifies this set to represent the set specified by the given pattern, ignoring Unicode Pattern_White...
icu::UnicodeSet::addMatchSetTo
virtual void addMatchSetTo(UnicodeSet &toUnionTo) const override
Implementation of UnicodeMatcher API.
icu::UnicodeSet::getRangeStart
virtual UChar32 getRangeStart(int32_t index) const
Iteration method that returns the first character in the specified range of this set.
icu::UnicodeSet::add
UnicodeSet & add(const UnicodeString &s)
Adds the specified multicharacter to this set if it is not already present.
icu::UnicodeSet::applyPattern
UnicodeSet & applyPattern(const UnicodeString &pattern, uint32_t options, const SymbolTable *symbols, UErrorCode &status)
Modifies this set to represent the set specified by the given pattern, optionally ignoring Unicode Pa...
icu::UnicodeSet::clear
virtual UnicodeSet & clear(void)
Removes all of the elements from this set.
icu::UnicodeSet::cloneAsThawed
UnicodeSet * cloneAsThawed() const
Clone the set and make the clone mutable.
icu::UnicodeSet::indexOf
int32_t indexOf(UChar32 c) const
Returns the index of the given character within this set, where the set is ordered by ascending code ...
icu::UnicodeSet::closeOver
UnicodeSet & closeOver(int32_t attribute)
Close this set over the given attribute.
icu::UnicodeSet::getDynamicClassID
virtual UClassID getDynamicClassID(void) const override
Implement UnicodeFunctor API.
icu::UnicodeSet::UnicodeSet
UnicodeSet(const UnicodeString &pattern, ParsePosition &pos, uint32_t options, const SymbolTable *symbols, UErrorCode &status)
Constructs a set from the given pattern.
icu::UnicodeSet::hashCode
virtual int32_t hashCode(void) const
Returns the hash code value for this set.
icu::UnicodeSet::complementAll
virtual UnicodeSet & complementAll(const UnicodeSet &c)
Complements in this set all elements contained in the specified set.
icu::UnicodeSet::complement
UnicodeSet & complement(const UnicodeString &s)
Complement the specified string in this set.
icu::UnicodeSet::containsAll
virtual UBool containsAll(const UnicodeSet &c) const
Returns true if this set contains all the characters and strings of the given set.
icu::UnicodeSet::containsNone
UBool containsNone(const UnicodeString &s) const
Returns true if this set contains none of the characters of the given string.
icu::UnicodeSet::UnicodeSet
UnicodeSet(const UnicodeSet &o)
Constructs a set that is identical to the given UnicodeSet.
icu::UnicodeSet::resemblesPattern
static UBool resemblesPattern(const UnicodeString &pattern, int32_t pos)
Return true if the given position, in the given pattern, appears to be the start of a UnicodeSet patt...
icu::UnicodeSet::~UnicodeSet
virtual ~UnicodeSet()
Destructs the set.
icu::UnicodeSet::retain
UnicodeSet & retain(UChar32 c)
Retain the specified character from this set if it is present.
icu::UnicodeSet::compact
virtual UnicodeSet & compact()
Reallocate this objects internal structures to take up the least possible space, without changing thi...
icu::UnicodeSet::span
int32_t span(const char16_t *s, int32_t length, USetSpanCondition spanCondition) const
Returns the length of the initial substring of the input string which consists only of characters and...
icu::UnicodeSet::retainAll
UnicodeSet & retainAll(const UnicodeString &s)
Retains EACH of the characters in this string.
icu::UnicodeSet::removeAllStrings
virtual UnicodeSet & removeAllStrings()
Remove all strings from this set.
icu::UnicodeSet::charAt
UChar32 charAt(int32_t index) const
Returns the character at the given index within this set, where the set is ordered by ascending code ...
icu::UnicodeSet::getRangeCount
virtual int32_t getRangeCount(void) const
Iteration method that returns the number of ranges contained in this set.
icu::UnicodeSet::containsNone
UBool containsNone(UChar32 start, UChar32 end) const
Returns true if this set contains none of the characters of the given range.
icu::UnicodeSet::contains
virtual UBool contains(UChar32 start, UChar32 end) const
Returns true if this set contains every character of the given range.
icu::UnicodeSet::containsAll
UBool containsAll(const UnicodeString &s) const
Returns true if this set contains all the characters of the given string.
icu::UnicodeSet::removeAll
UnicodeSet & removeAll(const UnicodeString &s)
Remove EACH of the characters in this string.
icu::UnicodeSet::size
virtual int32_t size(void) const
Returns the number of elements in this set (its cardinality).
icu::UnicodeSet::serialize
int32_t serialize(uint16_t *dest, int32_t destCapacity, UErrorCode &ec) const
Serializes this set into an array of 16-bit integers.
icu::UnicodeSet::set
UnicodeSet & set(UChar32 start, UChar32 end)
Make this object represent the range start - end.
icu::UnicodeSet::contains
UBool contains(const UnicodeString &s) const
Returns true if this set contains the given multicharacter string.
icu::UnicodeSet::complement
virtual UnicodeSet & complement(UChar32 start, UChar32 end)
Complements the specified range in this set.
icu::UnicodeSet::createFrom
static UnicodeSet * createFrom(const UnicodeString &s)
Makes a set from a multicharacter string.
icu::UnicodeSet::getStaticClassID
static UClassID getStaticClassID(void)
Return the class ID for this class.
icu::UnicodeSet::isEmpty
virtual UBool isEmpty(void) const
Returns true if this set contains no elements.
icu::UnicodeSet::operator==
virtual bool operator==(const UnicodeSet &o) const
Compares the specified object with this set for equality.
icu::UnicodeSet::UnicodeSet
UnicodeSet(const UnicodeString &pattern, UErrorCode &status)
Constructs a set from the given pattern.
icu::UnicodeSet::hasStrings
UBool hasStrings() const
icu::UnicodeSet::remove
UnicodeSet & remove(UChar32 c)
Removes the specified character from this set if it is present.
icu::UnicodeSet::toPattern
virtual UnicodeString & toPattern(UnicodeString &result, UBool escapeUnprintable=false) const override
Returns a string representation of this set.
icu::UnicodeSet::complement
virtual UnicodeSet & complement()
This is equivalent to complement(MIN_VALUE, MAX_VALUE).
icu::UnicodeSet::add
UnicodeSet & add(UChar32 c)
Adds the specified character to this set if it is not already present.
icu::UnicodeSet::applyIntPropertyValue
UnicodeSet & applyIntPropertyValue(UProperty prop, int32_t value, UErrorCode &ec)
Modifies this set to contain those code points which have the given value for the given binary or enu...
icu::UnicodeSet::spanBack
int32_t spanBack(const char16_t *s, int32_t length, USetSpanCondition spanCondition) const
Returns the start of the trailing substring of the input string which consists only of characters and...
icu::UnicodeSet::remove
UnicodeSet & remove(const UnicodeString &s)
Removes the specified string from this set if it is present.
icu::UnicodeSet::matches
virtual UMatchDegree matches(const Replaceable &text, int32_t &offset, int32_t limit, UBool incremental) override
Implement UnicodeMatcher::matches()
icu::UnicodeSet::add
virtual UnicodeSet & add(UChar32 start, UChar32 end)
Adds the specified range to this set if it is not already present.
icu::UnicodeSet::freeze
UnicodeSet * freeze()
Freeze the set (make it immutable).
icu::UnicodeSet::applyPattern
UnicodeSet & applyPattern(const UnicodeString &pattern, ParsePosition &pos, uint32_t options, const SymbolTable *symbols, UErrorCode &status)
Parses the given pattern, starting at the given position.
icu::UnicodeSet::contains
virtual UBool contains(UChar32 c) const override
Returns true if this set contains the given character.
icu::UnicodeSet::retain
UnicodeSet & retain(const UnicodeString &s)
Retains only the specified string from this set if it is present.
icu::UnicodeSet::UnicodeSet
UnicodeSet(const uint16_t buffer[], int32_t bufferLen, ESerialization serialization, UErrorCode &status)
Constructs a set from the output of serialize().
icu::UnicodeSet::retain
virtual UnicodeSet & retain(UChar32 start, UChar32 end)
Retain only the elements in this set that are contained in the specified range.
icu::UnicodeSet::addAll
virtual UnicodeSet & addAll(const UnicodeSet &c)
Adds all of the elements in the specified set to this set if they're not already present.
icu::UnicodeSet::UnicodeSet
UnicodeSet(const UnicodeString &pattern, uint32_t options, const SymbolTable *symbols, UErrorCode &status)
Constructs a set from the given pattern.
icu::UnicodeSet::retainAll
virtual UnicodeSet & retainAll(const UnicodeSet &c)
Retains only the elements in this set that are contained in the specified set.
icu::UnicodeSet::complement
UnicodeSet & complement(UChar32 c)
Complements the specified character in this set.
icu::UnicodeSet::containsNone
UBool containsNone(const UnicodeSet &c) const
Returns true if this set contains none of the characters and strings of the given set.
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:296
icu::UnicodeString::length
int32_t length(void) const
Return the length of the UnicodeString object.
Definition: unistr.h:3890
icu::UnicodeString::getBuffer
char16_t * getBuffer(int32_t minCapacity)
Get a read/write pointer to the internal buffer.
icu::operator==
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
icu::UMatchDegree
UMatchDegree
Constants returned by UnicodeMatcher::matches() indicating the degree of match.
Definition: unimatch.h:33
icu::operator!=
bool operator!=(const StringPiece &x, const StringPiece &y)
Global operator != for StringPiece.
Definition: stringpiece.h:335
UProperty
UProperty
Selection constants for Unicode properties.
Definition: uchar.h:195
ucpmap.h
This file defines an abstract map from Unicode code points to integer values.
UCPMapValueFilter
uint32_t UCPMapValueFilter(const void *context, uint32_t value)
Callback function type: Modifies a map value.
Definition: ucpmap.h:114
UCPMap
struct UCPMap UCPMap
Abstract map from Unicode code points (U+0000..U+10FFFF) to integer values.
Definition: ucpmap.h:31
UChar32
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
Definition: umachine.h:467
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
U_FINAL
#define U_FINAL
Defined to the C++11 "final" keyword if available.
Definition: umachine.h:141
unifilt.h
C++ API: Unicode Filter.
unistr.h
C++ API: Unicode String.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
uset.h
C API: Unicode Set.
USetSpanCondition
USetSpanCondition
Argument values for whether span() and similar functions continue while the current character is cont...
Definition: uset.h:159
USet
struct USet USet
USet is the C API type corresponding to C++ class UnicodeSet.
Definition: uset.h:50
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
NULL
#define NULL
Define NULL if necessary, to nullptr for C++ and to ((void *)0) for C.
Definition: utypes.h:188
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
U_COMMON_API
#define U_COMMON_API
Set to export library symbols from inside the common library, and to import them from outside.
Definition: utypes.h:300