io.lacuna.bifurcan.utils

Class UnicodeChunk

java.lang.Object

io.lacuna.bifurcan.utils.UnicodeChunk

public class UnicodeChunk
extends Object

An immutable UTF-8 encoded block of no more than 255 UTF-16 code units, which allows lookups by both code point and code unit.

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	EMPTY
static byte[]	LENGTHS

Constructor Summary

Constructors

Constructor and Description
UnicodeChunk()

Method Summary

Modifier and Type	Method and Description
static PrimitiveIterator.OfInt	codePointIterator(byte[] chunk)
static PrimitiveIterator.OfInt	codeUnitIterator(byte[] chunk)
static byte[]	concat(byte[] a, byte[] b)
static byte[]	from(CharSequence cs)
static byte[]	from(CharSequence cs, int start, int end)
static byte[]	insert(byte[] a, byte[] b, int idx)
static int	nthPoint(byte[] chunk, int idx)
static char	nthUnit(byte[] chunk, int idx)
static int	numCodePoints(byte[] chunk)
static int	numCodeUnits(byte[] chunk)
static int	prefixLength(byte prefix)
static PrimitiveIterator.OfInt	reverseCodePointIterator(byte[] chunk)
static PrimitiveIterator.OfInt	reverseCodeUnitIterator(byte[] chunk)
static byte[]	slice(byte[] chunk, int start, int end)
static CharSequence	toCharSequence(byte[] chunk)
static String	toString(byte[] chunk)
static int	writeCodePoints(int[] array, int offset, byte[] chunk)
static int	writeCodeUnits(char[] array, int offset, byte[] chunk)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final byte[] EMPTY

LENGTHS

public static final byte[] LENGTHS

Constructor Detail

UnicodeChunk

public UnicodeChunk()

Method Detail

from

public static byte[] from(CharSequence cs)

from

public static byte[] from(CharSequence cs,
                          int start,
                          int end)

toCharSequence

public static CharSequence toCharSequence(byte[] chunk)

toString

public static String toString(byte[] chunk)

concat

public static byte[] concat(byte[] a,
                            byte[] b)

insert

public static byte[] insert(byte[] a,
                            byte[] b,
                            int idx)

slice

public static byte[] slice(byte[] chunk,
                           int start,
                           int end)

nthUnit

public static char nthUnit(byte[] chunk,
                           int idx)

nthPoint

public static int nthPoint(byte[] chunk,
                           int idx)

numCodePoints

public static int numCodePoints(byte[] chunk)

numCodeUnits

public static int numCodeUnits(byte[] chunk)

codePointIterator

public static PrimitiveIterator.OfInt codePointIterator(byte[] chunk)

reverseCodePointIterator

public static PrimitiveIterator.OfInt reverseCodePointIterator(byte[] chunk)

codeUnitIterator

public static PrimitiveIterator.OfInt codeUnitIterator(byte[] chunk)

reverseCodeUnitIterator

public static PrimitiveIterator.OfInt reverseCodeUnitIterator(byte[] chunk)

writeCodeUnits

public static int writeCodeUnits(char[] array,
                                 int offset,
                                 byte[] chunk)

writeCodePoints

public static int writeCodePoints(int[] array,
                                  int offset,
                                  byte[] chunk)

prefixLength

public static int prefixLength(byte prefix)