Class MultiByteEncoding

java.lang.Object

org.jcodings.Encoding

org.jcodings.AbstractEncoding

org.jcodings.MultiByteEncoding

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

CanBeTrailTableEncoding, EmacsMuleEncoding, EucEncoding, GB18030Encoding, UnicodeEncoding

public abstract class MultiByteEncoding
extends AbstractEncoding

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	A
protected final int[]	EncLen
protected static final int	F
protected final int[][]	Trans
protected final int[]	TransZero

Fields inherited from class Encoding

CHAR_INVALID, isUnicode, isUTF8, maxLength, minLength, NEW_LINE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MultiByteEncoding(String name, int minLength, int maxLength, int[] EncLen, int[][] Trans, short[] CTypeTable)

Method Summary

Modifier and Type	Method	Description
int	caseMap(IntHolder flagP, byte[] bytes, IntHolder pp, int end, byte[] to, int toP, int toEnd)	Oniguruma equivalent: case_map
static boolean	isInRange(int code, int from, int to)
int	length(byte c)	Returns character length given character head returns 1 for singlebyte encodings or performs direct length table lookup for multibyte ones.
private int	lengthForThree(byte[] bytes, int p, int end, int b, int s)
private int	lengthForThreeUptoFour(byte[] bytes, int p, int end, int b, int s)
private int	lengthForTwo(byte[] bytes, int p, int end, int b, int s)
protected final int	lengthForTwoUptoFour(byte[] bytes, int p, int end, int b, int s)
private int	lengthForTwoUptoThree(byte[] bytes, int p, int end, int b, int s)
protected final int	mb2CodeToMbc(int code, byte[] bytes, int p)
protected final int	mb2CodeToMbcLength(int code)
protected final boolean	mb2IsCodeCType(int code, int ctype)
protected final int	mb4CodeToMbc(int code, byte[] bytes, int p)
protected final int	mb4CodeToMbcLength(int code)
protected final boolean	mb4IsCodeCType(int code, int ctype)
protected final int	mbnMbcCaseFold(int flag, byte[] bytes, IntHolder pp, int end, byte[] lower)
protected final int	mbnMbcToCode(byte[] bytes, int p, int end)
protected final int	missing(int n)
protected final int	missing(int b, int delta)
protected final int	safeLengthForUptoFour(byte[] bytes, int p, int end)
protected final int	safeLengthForUptoThree(byte[] bytes, int p, int end)
protected final int	safeLengthForUptoTwo(byte[] bytes, int p, int end)
int	strCodeAt(byte[] bytes, int p, int end, int index)
int	strLength(byte[] bytes, int p, int end)

Methods inherited from class AbstractEncoding

applyAllCaseFold, asciiApplyAllCaseFold, asciiCaseFoldCodesByString, asciiMbcCaseFold, asciiOnlyCaseMap, caseFoldCodesByString, isCodeCTypeInternal, isNewLine, mbcCaseFold, propertyNameToCType, singleByteAsciiOnlyCaseMap

Methods inherited from class Encoding

asciiToLower, asciiToUpper, codeToMbc, codeToMbcLength, ctypeCodeRange, digitVal, equals, getCharset, getCharsetName, getIndex, getName, hashCode, isAlnum, isAlpha, isAscii, isAscii, isAsciiCompatible, isBlank, isCntrl, isCodeCType, isDigit, isDummy, isFixedWidth, isGraph, isLower, isMbcAscii, isMbcCrnl, isMbcHead, isMbcWord, isNewLine, isPrint, isPunct, isReverseMatchAllowed, isSbWord, isSingleByte, isSpace, isUnicode, isUpper, isUTF8, isWord, isWordGraphPrint, isXDigit, leftAdjustCharHead, length, load, load, maxLength, maxLengthDistance, mbcodeStartPosition, mbcToCode, minLength, odigitVal, prevCharHead, replicate, rightAdjustCharHead, rightAdjustCharHeadWithPrev, setDummy, setName, setName, step, stepBack, strByteLengthNull, strLengthNull, strNCmp, toLowerCaseTable, toString, xdigitVal

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

EncLen

protected final int[] EncLen

A

protected static final int A

See Also:

• Constant Field Values

F

protected static final int F

See Also:

• Constant Field Values

Trans

protected final int[][] Trans

TransZero

protected final int[] TransZero

Constructor Details

MultiByteEncoding

protected MultiByteEncoding(String name,
 int minLength,
 int maxLength,
 int[] EncLen,
 int[][] Trans,
 short[] CTypeTable)

Method Details

length

public int length(byte c)

Description copied from class: Encoding

Returns character length given character head returns 1 for singlebyte encodings or performs direct length table lookup for multibyte ones.

Specified by:

length in class Encoding

Parameters:

c - Character head Oniguruma equivalent: mbc_enc_len To be deprecated very soon (use length(byte[]bytes, int p, int end) version)

missing

protected final int missing(int n)

missing

protected final int missing(int b,
 int delta)

safeLengthForUptoFour

protected final int safeLengthForUptoFour(byte[] bytes,
 int p,
 int end)

lengthForTwoUptoFour

protected final int lengthForTwoUptoFour(byte[] bytes,
 int p,
 int end,
 int b,
 int s)

lengthForThreeUptoFour

private int lengthForThreeUptoFour(byte[] bytes,
 int p,
 int end,
 int b,
 int s)

safeLengthForUptoThree

protected final int safeLengthForUptoThree(byte[] bytes,
 int p,
 int end)

lengthForTwoUptoThree

private int lengthForTwoUptoThree(byte[] bytes,
 int p,
 int end,
 int b,
 int s)

lengthForThree

private int lengthForThree(byte[] bytes,
 int p,
 int end,
 int b,
 int s)

safeLengthForUptoTwo

protected final int safeLengthForUptoTwo(byte[] bytes,
 int p,
 int end)

lengthForTwo

private int lengthForTwo(byte[] bytes,
 int p,
 int end,
 int b,
 int s)

mbnMbcToCode

protected final int mbnMbcToCode(byte[] bytes,
 int p,
 int end)

caseMap

public int caseMap(IntHolder flagP,
 byte[] bytes,
 IntHolder pp,
 int end,
 byte[] to,
 int toP,
 int toEnd)

Description copied from class: Encoding

Oniguruma equivalent: case_map

Specified by:

caseMap in class Encoding

mbnMbcCaseFold

protected final int mbnMbcCaseFold(int flag,
 byte[] bytes,
 IntHolder pp,
 int end,
 byte[] lower)

mb2CodeToMbcLength

protected final int mb2CodeToMbcLength(int code)

mb4CodeToMbcLength

protected final int mb4CodeToMbcLength(int code)

mb2CodeToMbc

protected final int mb2CodeToMbc(int code,
 byte[] bytes,
 int p)

mb4CodeToMbc

protected final int mb4CodeToMbc(int code,
 byte[] bytes,
 int p)

mb2IsCodeCType

protected final boolean mb2IsCodeCType(int code,
 int ctype)

mb4IsCodeCType

protected final boolean mb4IsCodeCType(int code,
 int ctype)

strLength

public int strLength(byte[] bytes,
 int p,
 int end)

Specified by:

strLength in class Encoding

strCodeAt

public int strCodeAt(byte[] bytes,
 int p,
 int end,
 int index)

Specified by:

strCodeAt in class Encoding

isInRange

public static boolean isInRange(int code,
 int from,
 int to)