com.ibm.icu.impl.coll

Class FCDIterCollationIterator

java.lang.Object

com.ibm.icu.impl.coll.CollationIterator

com.ibm.icu.impl.coll.IterCollationIterator

com.ibm.icu.impl.coll.FCDIterCollationIterator

public final class FCDIterCollationIterator
extends IterCollationIterator

Incrementally checks the input text for FCD and normalizes where necessary.

Field Summary

Fields inherited from class com.ibm.icu.impl.coll.IterCollationIterator

iter

Fields inherited from class com.ibm.icu.impl.coll.CollationIterator

data, NO_CP_AND_CE32, trie

Constructor Summary

Constructors

Constructor and Description
FCDIterCollationIterator(CollationData data, boolean numeric, UCharacterIterator ui, int startIndex)

Method Summary

Modifier and Type	Method and Description
protected void	backwardNumCodePoints(int num)
protected void	forwardNumCodePoints(int num)
int	getOffset()
protected char	handleGetTrailSurrogate() Called when handleNextCE32() returns a LEAD_SURROGATE_TAG for a lead surrogate code unit.
protected long	handleNextCE32() Returns the next code point and its local CE32 value.
int	nextCodePoint() Returns the next code point (with post-increment).
int	previousCodePoint() Returns the previous code point (with pre-decrement).
void	resetToOffset(int newOffset) Resets the iterator state and sets the position to the specified offset.

Methods inherited from class com.ibm.icu.impl.coll.CollationIterator

appendCEsFromCE32, clearCEsIfNoneRemaining, equals, fetchCEs, forbidSurrogateCodePoints, getCE, getCE32FromBuilderData, getCEs, getCEsLength, getDataCE32, isLeadSurrogate, isTrailSurrogate, makeCodePointAndCE32Pair, nextCE, previousCE, reset, reset

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FCDIterCollationIterator

public FCDIterCollationIterator(CollationData data,
                                boolean numeric,
                                UCharacterIterator ui,
                                int startIndex)

Method Detail

resetToOffset

public void resetToOffset(int newOffset)

Description copied from class: CollationIterator

Resets the iterator state and sets the position to the specified offset. Subclasses must implement, and must call the parent class method, or CollationIterator.reset().

Overrides:

resetToOffset in class IterCollationIterator

getOffset

public int getOffset()

Overrides:

getOffset in class IterCollationIterator

nextCodePoint

public int nextCodePoint()

Description copied from class: CollationIterator

Returns the next code point (with post-increment). Public for identical-level comparison and for testing.

Overrides:

nextCodePoint in class IterCollationIterator

previousCodePoint

public int previousCodePoint()

Description copied from class: CollationIterator

Returns the previous code point (with pre-decrement). Public for identical-level comparison and for testing.

Overrides:

previousCodePoint in class IterCollationIterator

handleNextCE32

protected long handleNextCE32()

Description copied from class: CollationIterator

Returns the next code point and its local CE32 value. Returns Collation.FALLBACK_CE32 at the end of the text (c<0) or when c's CE32 value is to be looked up in the base data (fallback). The code point is used for fallbacks, context and implicit weights. It is ignored when the returned CE32 is not special (e.g., FFFD_CE32). Returns the code point in bits 63..32 (signed) and the CE32 in bits 31..0.

Overrides:

handleNextCE32 in class IterCollationIterator

handleGetTrailSurrogate

protected char handleGetTrailSurrogate()

Description copied from class: CollationIterator

Called when handleNextCE32() returns a LEAD_SURROGATE_TAG for a lead surrogate code unit. Returns the trail surrogate in that case and advances past it, if a trail surrogate follows the lead surrogate. Otherwise returns any other code unit and does not advance.

Overrides:

handleGetTrailSurrogate in class IterCollationIterator

forwardNumCodePoints

protected void forwardNumCodePoints(int num)

Overrides:

forwardNumCodePoints in class IterCollationIterator

backwardNumCodePoints

protected void backwardNumCodePoints(int num)

Overrides:

backwardNumCodePoints in class IterCollationIterator