17#if U_SHOW_CPLUSPLUS_API
101 enum { DONE = 0xffff };
432 inline int32_t setToStart();
441 virtual char16_t last(
void) = 0;
459 inline int32_t setToEnd();
505 virtual char16_t next(
void) = 0;
558 inline int32_t startIndex(
void)
const;
569 inline int32_t endIndex(
void)
const;
579 inline int32_t getIndex(
void)
const;
587 inline int32_t getLength()
const;
701CharacterIterator::setToStart() {
702 return move(0, kStart);
706CharacterIterator::setToEnd() {
707 return move(0, kEnd);
711CharacterIterator::startIndex(
void)
const {
716CharacterIterator::endIndex(
void)
const {
721CharacterIterator::getIndex(
void)
const {
726CharacterIterator::getLength(
void)
const {
Abstract class that defines an API for iteration on text objects.
EOrigin
Origin enumeration for the move() and move32() functions.
int32_t textLength
Base class text length field.
virtual UChar32 first32PostInc(void)
Sets the iterator to refer to the first code point in its iteration range, returns that code point,...
CharacterIterator(int32_t length, int32_t position)
Constructor, just setting the length and position fields in this base class.
virtual char16_t first(void)=0
Sets the iterator to refer to the first code unit in its iteration range, and returns that code unit.
virtual void getText(UnicodeString &result)=0
Copies the text under iteration into the UnicodeString referred to by "result".
virtual int32_t move(int32_t delta, EOrigin origin)=0
Moves the current position relative to the start or end of the iteration range, or relative to the cu...
virtual char16_t current(void) const =0
Returns the code unit the iterator currently refers to.
CharacterIterator & operator=(const CharacterIterator &that)
Assignment operator.
virtual UChar32 next32(void)=0
Advances to the next code point in the iteration range (toward endIndex()), and returns that code poi...
virtual ~CharacterIterator()
Destructor.
virtual char16_t firstPostInc(void)
Sets the iterator to refer to the first code unit in its iteration range, returns that code unit,...
virtual UChar32 setIndex32(int32_t position)=0
Sets the iterator to refer to the beginning of the code point that contains the "position"-th code un...
virtual UChar32 last32(void)=0
Sets the iterator to refer to the last code point in its iteration range, and returns that code unit.
virtual char16_t previous(void)=0
Advances to the previous code unit in the iteration range (toward startIndex()), and returns that cod...
virtual char16_t next(void)=0
Advances to the next code unit in the iteration range (toward endIndex()), and returns that code unit...
virtual UChar32 first32(void)=0
Sets the iterator to refer to the first code point in its iteration range, and returns that code unit...
int32_t begin
Base class field for the start of the iteration range.
CharacterIterator(int32_t length)
Constructor, just setting the length field in this base class.
virtual UChar32 current32(void) const =0
Returns the code point the iterator currently refers to.
int32_t pos
Base class field for the current position.
int32_t end
Base class field for the end of the iteration range.
virtual UChar32 previous32(void)=0
Advances to the previous code point in the iteration range (toward startIndex()), and returns that co...
virtual int32_t move32(int32_t delta, EOrigin origin)=0
Moves the current position relative to the start or end of the iteration range, or relative to the cu...
CharacterIterator(const CharacterIterator &that)
Copy constructor.
virtual UBool hasPrevious()=0
Returns false if there are no more code units or code points before the current position in the itera...
virtual CharacterIterator * clone() const =0
Returns a pointer to a new CharacterIterator of the same concrete class as this one,...
virtual char16_t setIndex(int32_t position)=0
Sets the iterator to refer to the "position"-th code unit in the text-storage object the iterator ref...
CharacterIterator(int32_t length, int32_t textBegin, int32_t textEnd, int32_t position)
Constructor, just setting the length, start, end, and position fields in this base class.
virtual char16_t last(void)=0
Sets the iterator to refer to the last code unit in its iteration range, and returns that code unit.
CharacterIterator()
Empty constructor.
Abstract class that defines an API for forward-only iteration on text objects.
virtual ~ForwardCharacterIterator()
Destructor.
ForwardCharacterIterator(const ForwardCharacterIterator &other)
Copy constructor to be overridden in the implementing class.
virtual bool operator==(const ForwardCharacterIterator &that) const =0
Returns true when both iterators refer to the same character in the same character-storage object.
virtual UClassID getDynamicClassID(void) const override=0
Returns a UClassID for this ForwardCharacterIterator ("poor man's RTTI").
ForwardCharacterIterator & operator=(const ForwardCharacterIterator &)
Assignment operator to be overridden in the implementing class.
ForwardCharacterIterator()
Default constructor to be overridden in the implementing class.
virtual int32_t hashCode(void) const =0
Generates a hash code for this iterator.
virtual UBool hasNext()=0
Returns false if there are no more code units or code points at or after the current position in the ...
virtual char16_t nextPostInc(void)=0
Gets the current code unit for returning and advances to the next code unit in the iteration range (t...
virtual UChar32 next32PostInc(void)=0
Gets the current code point for returning and advances to the next code point in the iteration range ...
UObject is the common ICU "boilerplate" class.
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
U_EXPORT UBool operator==(const StringPiece &x, const StringPiece &y)
Global operator == for StringPiece.
bool operator!=(const StringPiece &x, const StringPiece &y)
Global operator != for StringPiece.
int32_t UChar32
Define UChar32 as a type for single Unicode code points.
int8_t UBool
The ICU boolean type, a signed-byte integer.
C++ API: Common ICU base class UObject.
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Basic definitions for ICU, for both C and C++ APIs.
#define U_COMMON_API
Set to export library symbols from inside the common library, and to import them from outside.