Class CharsetMBCS.CharsetDecoderMBCS

java.lang.Object

java.nio.charset.CharsetDecoder

com.ibm.icu.charset.CharsetDecoderICU

com.ibm.icu.charset.CharsetMBCS.CharsetDecoderMBCS

Enclosing class:

CharsetMBCS

class CharsetMBCS.CharsetDecoderMBCS
extends CharsetDecoderICU

Field Summary

Fields inherited from class CharsetDecoderICU

charErrorBufferArray, charErrorBufferBegin, charErrorBufferLength, EXT_MAX_BYTES, invalidCharBuffer, invalidCharLength, mode, preToUArray, preToUBegin, preToUFirstLength, preToULength, toCharErrorBehaviour, toUBytesArray, toUBytesBegin, toUContext, toULength, toUnicodeStatus

Constructor Summary

Constructors

Constructor	Description
CharsetDecoderMBCS(CharsetICU cs)

Method Summary

Modifier and Type	Method	Description
private CoderResult	cnvMBCSSingleToBMPWithOffsets(ByteBuffer source, CharBuffer target, IntBuffer offsets, boolean flush)
private CoderResult	cnvMBCSSingleToUnicodeWithOffsets(ByteBuffer source, CharBuffer target, IntBuffer offsets, boolean flush)
(package private) CoderResult	cnvMBCSToUnicodeWithOffsets(ByteBuffer source, CharBuffer target, IntBuffer offsets, boolean flush)
private CoderResult	continueMatchToU(ByteBuffer source, CharBuffer target, IntBuffer offsets, int srcIndex, boolean flush)
protected CoderResult	decodeLoop(ByteBuffer source, CharBuffer target, IntBuffer offsets, boolean flush)
private int	getFallback(CharsetMBCS.UConverterMBCSTable mbcsTable, int offset)
private boolean	hasValidTrailBytes(int[][] stateTable, short state)
private boolean	initialMatchToU(int firstLength, ByteBuffer source, CharBuffer target, IntBuffer offsets, int srcIndex, boolean flush, CoderResult[] cr)
private boolean	isSingleOrLead(int[][] stateTable, int state, boolean isDBCSOnly, int b)
private int	matchToU(byte sisoState, byte[] preArray, int preArrayBegin, int preLength, ByteBuffer source, int[] pMatchValue, boolean isUseFallback, boolean flush)
(package private) int	simpleGetNextUChar(ByteBuffer source, boolean useFallback)	This is a simple version of _MBCSGetNextUChar() that is used by other converter implementations.
private int	simpleMatchToU(ByteBuffer source, boolean useFallback)
private int	toU(int length, ByteBuffer source, CharBuffer target, IntBuffer offsets, int sourceIndex, boolean flush, CoderResult[] cr)
private CoderResult	toUWriteCodePoint(int c, CharBuffer target, IntBuffer offsets, int sourceIndex)
private CoderResult	writeToU(int value, CharBuffer target, IntBuffer offsets, int srcIndex)

Methods inherited from class CharsetDecoderICU

decode, decodeLoop, implFlush, implOnMalformedInput, implOnUnmappableCharacter, implReset, isFallbackUsed, isToUUseFallback, isToUUseFallback, maxBytesPerChar, setToUCallback, toUCountPending, toUnicodeWithCallback, toUWriteUChars

Methods inherited from class CharsetDecoder

averageCharsPerByte, charset, decode, decode, detectedCharset, flush, implReplaceWith, isAutoDetecting, isCharsetDetected, malformedInputAction, maxCharsPerByte, onMalformedInput, onUnmappableCharacter, replacement, replaceWith, reset, unmappableCharacterAction

Methods inherited from class Object

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

Constructor Details

CharsetDecoderMBCS

CharsetDecoderMBCS(CharsetICU cs)

Method Details

decodeLoop

protected CoderResult decodeLoop(ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 boolean flush)

Specified by:

decodeLoop in class CharsetDecoderICU

continueMatchToU

private CoderResult continueMatchToU(ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 int srcIndex,
 boolean flush)

matchToU

private int matchToU(byte sisoState,
 byte[] preArray,
 int preArrayBegin,
 int preLength,
 ByteBuffer source,
 int[] pMatchValue,
 boolean isUseFallback,
 boolean flush)

writeToU

private CoderResult writeToU(int value,
 CharBuffer target,
 IntBuffer offsets,
 int srcIndex)

toUWriteCodePoint

private CoderResult toUWriteCodePoint(int c,
 CharBuffer target,
 IntBuffer offsets,
 int sourceIndex)

toU

private int toU(int length,
 ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 int sourceIndex,
 boolean flush,
 CoderResult[] cr)

initialMatchToU

private boolean initialMatchToU(int firstLength,
 ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 int srcIndex,
 boolean flush,
 CoderResult[] cr)

simpleMatchToU

private int simpleMatchToU(ByteBuffer source,
 boolean useFallback)

cnvMBCSToUnicodeWithOffsets

CoderResult cnvMBCSToUnicodeWithOffsets(ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 boolean flush)

cnvMBCSSingleToBMPWithOffsets

private CoderResult cnvMBCSSingleToBMPWithOffsets(ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 boolean flush)

cnvMBCSSingleToUnicodeWithOffsets

private CoderResult cnvMBCSSingleToUnicodeWithOffsets(ByteBuffer source,
 CharBuffer target,
 IntBuffer offsets,
 boolean flush)

getFallback

private int getFallback(CharsetMBCS.UConverterMBCSTable mbcsTable,
 int offset)

simpleGetNextUChar

int simpleGetNextUChar(ByteBuffer source,
 boolean useFallback)

This is a simple version of _MBCSGetNextUChar() that is used by other converter implementations. It only returns an "assigned" result if it consumes the entire input. It does not use state from the converter, nor error codes. It does not handle the EBCDIC swaplfnl option (set in UConverter). It handles conversion extensions but not GB 18030.

Returns:

U+fffe unassigned U+ffff illegal otherwise the Unicode code point

hasValidTrailBytes

private boolean hasValidTrailBytes(int[][] stateTable,
 short state)

isSingleOrLead

private boolean isSingleOrLead(int[][] stateTable,
 int state,
 boolean isDBCSOnly,
 int b)