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org.jcodings.specific

public final Class CESU8Encoding

extends UnicodeEncoding
Class Inheritance
Imports
org.jcodings.Config, .IntHolder, org.jcodings.ascii.AsciiTables, org.jcodings.exception.ErrorCodes, org.jcodings.unicode.UnicodeEncoding

Field Summary

Modifier and TypeField and Description
private static final int[]
CESU8EncLen

pack-priv static final int[][]
CESU8Trans

public static final CESU8Encoding
INSTANCE

private static final int
INVALID_CODE_FE

private static final int
INVALID_CODE_FF

pack-priv static final boolean
USE_INVALID_CODE_SCHEME

private static final int
VALID_CODE_LIMIT

Constructor Summary

AccessConstructor and Description
protected
CESU8Encoding()

Method Summary

Modifier and TypeMethod and Description
public int
codeToMbc(int code, byte[] bytes, int p)

Implements abstract org.jcodings.Encoding.codeToMbc.

Extracts code point into it's multibyte representation
public int
codeToMbcLength(int code)

Implements abstract org.jcodings.Encoding.codeToMbcLength.

Returns character length given a code point Oniguruma equivalent: code_to_mbclen
public int[]
ctypeCodeRange(int ctype, IntHolder sbOut)

Implements abstract org.jcodings.Encoding.ctypeCodeRange.

Returns code range for a given character type Oniguruma equivalent: get_ctype_code_range
public String
getCharsetName()

Overrides org.jcodings.unicode.UnicodeEncoding.getCharsetName.

The name of the equivalent Java Charset for this encoding.
public boolean
isNewLine(byte[] bytes, int p, int end)

Overrides org.jcodings.AbstractEncoding.isNewLine.

onigenc_is_mbc_newline_0x0a / used also by multibyte encodings
public boolean
isReverseMatchAllowed(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.isReverseMatchAllowed.

Returns true if it's safe to use reversal Boyer-Moore search fail fast algorithm Oniguruma equivalent: is_allowed_reverse_match
public int
leftAdjustCharHead(byte[]
byte stream
bytes, int
position
p, int
stop
s, int
end
end)

Implements abstract org.jcodings.Encoding.leftAdjustCharHead.

Seeks the previous character head in a stream Oniguruma equivalent: left_adjust_char_head
public int
length(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.length.

Returns character length given stream, character position and stream end returns 1 for singlebyte encodings or performs sanity validations for multibyte ones and returns the character length, missing characters in the stream otherwise
private int
lengthForOneUptoSix(byte[] bytes, int p, int end, int b, int s)

public int
mbcCaseFold(int
case fold flag
flag, byte[] bytes, IntHolder
an IntHolder that points at character head
pp, int end, byte[]
a buffer where to extract case folded character Oniguruma equivalent: mbc_case_fold
fold)

Overrides org.jcodings.unicode.UnicodeEncoding.mbcCaseFold.

onigenc_ascii_mbc_case_fold
public int
mbcToCode(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.mbcToCode.

Returns code point for a character Oniguruma equivalent: mbc_to_code
pack-priv static byte
trail0(int code)

pack-priv static byte
trail0(long code)

pack-priv static byte
trailS(int code, int shift)

pack-priv static byte
trailS(long code, int shift)

private static boolean
utf8IsLead(int c)

Inherited from org.jcodings.unicode.UnicodeEncoding:
applyAllCaseFoldcaseFoldCodesByStringcaseMapctypeCodeRangeisCodeCTypeisInCodeRangepropertyNameToCType

Field Detail

CESU8EncLenback to summary
private static final int[] CESU8EncLen
CESU8Transback to summary
pack-priv static final int[][] CESU8Trans
INSTANCEback to summary
public static final CESU8Encoding INSTANCE
INVALID_CODE_FEback to summary
private static final int INVALID_CODE_FE
INVALID_CODE_FFback to summary
private static final int INVALID_CODE_FF
USE_INVALID_CODE_SCHEMEback to summary
pack-priv static final boolean USE_INVALID_CODE_SCHEME
VALID_CODE_LIMITback to summary
private static final int VALID_CODE_LIMIT

Constructor Detail

CESU8Encodingback to summary
protected CESU8Encoding()

Method Detail

codeToMbcback to summary
public int codeToMbc(int code, byte[] bytes, int p)

Implements abstract org.jcodings.Encoding.codeToMbc.

Doc from org.jcodings.Encoding.codeToMbc.

Extracts code point into it's multibyte representation

Returns:int

character length for the given code point Oniguruma equivalent: code_to_mbc

Annotations
@Override
codeToMbcLengthback to summary
public int codeToMbcLength(int code)

Implements abstract org.jcodings.Encoding.codeToMbcLength.

Doc from org.jcodings.Encoding.codeToMbcLength.

Returns character length given a code point Oniguruma equivalent: code_to_mbclen

Annotations
@Override
ctypeCodeRangeback to summary
public int[] ctypeCodeRange(int ctype, IntHolder sbOut)

Implements abstract org.jcodings.Encoding.ctypeCodeRange.

Doc from org.jcodings.Encoding.ctypeCodeRange.

Returns code range for a given character type Oniguruma equivalent: get_ctype_code_range

Annotations
@Override
getCharsetNameback to summary
public String getCharsetName()

Overrides org.jcodings.unicode.UnicodeEncoding.getCharsetName.

Doc from org.jcodings.Encoding.getCharsetName.

The name of the equivalent Java Charset for this encoding. Defaults to the name of the encoding. Subclasses can override this to provide a different name.

Returns:String

the name of the equivalent Java Charset for this encoding

Annotations
@Override
isNewLineback to summary
public boolean isNewLine(byte[] bytes, int p, int end)

Overrides org.jcodings.AbstractEncoding.isNewLine.

Doc from org.jcodings.AbstractEncoding.isNewLine.

onigenc_is_mbc_newline_0x0a / used also by multibyte encodings

Annotations
@Override
isReverseMatchAllowedback to summary
public boolean isReverseMatchAllowed(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.isReverseMatchAllowed.

Doc from org.jcodings.Encoding.isReverseMatchAllowed.

Returns true if it's safe to use reversal Boyer-Moore search fail fast algorithm Oniguruma equivalent: is_allowed_reverse_match

Annotations
@Override
leftAdjustCharHeadback to summary
public int leftAdjustCharHead(byte[] bytes, int p, int s, int end)

Implements abstract org.jcodings.Encoding.leftAdjustCharHead.

Doc from org.jcodings.Encoding.leftAdjustCharHead.

Seeks the previous character head in a stream Oniguruma equivalent: left_adjust_char_head

Parameters
bytes:byte[]

byte stream

p:int

position

s:int

stop

end:int

end

Annotations
@Override
lengthback to summary
public int length(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.length.

Doc from org.jcodings.Encoding.length.

Returns character length given stream, character position and stream end returns 1 for singlebyte encodings or performs sanity validations for multibyte ones and returns the character length, missing characters in the stream otherwise

Returns:int

0 Never > 0 Valid character, length returned -1 Illegal/malformed character < -1 (-1 - n) Number of missing bytes for character in p...end range Oniguruma equivalent: mbc_enc_len modified for 1.9 purposes,

Annotations
@Override
lengthForOneUptoSixback to summary
private int lengthForOneUptoSix(byte[] bytes, int p, int end, int b, int s)
mbcCaseFoldback to summary
public int mbcCaseFold(int flag, byte[] bytes, IntHolder pp, int end, byte[] fold)

Overrides org.jcodings.unicode.UnicodeEncoding.mbcCaseFold.

Doc from org.jcodings.AbstractEncoding.mbcCaseFold.

onigenc_ascii_mbc_case_fold

Parameters
flag:int

Doc from org.jcodings.Encoding.mbcCaseFold.

case fold flag

pp:IntHolder

Doc from org.jcodings.Encoding.mbcCaseFold.

an IntHolder that points at character head

fold:byte[]

Doc from org.jcodings.Encoding.mbcCaseFold.

a buffer where to extract case folded character Oniguruma equivalent: mbc_case_fold

Annotations
@Override
mbcToCodeback to summary
public int mbcToCode(byte[] bytes, int p, int end)

Implements abstract org.jcodings.Encoding.mbcToCode.

Doc from org.jcodings.Encoding.mbcToCode.

Returns code point for a character Oniguruma equivalent: mbc_to_code

Annotations
@Override
trail0back to summary
pack-priv static byte trail0(int code)
trail0back to summary
pack-priv static byte trail0(long code)
trailSback to summary
pack-priv static byte trailS(int code, int shift)
trailSback to summary
pack-priv static byte trailS(long code, int shift)
utf8IsLeadback to summary
private static boolean utf8IsLead(int c)