com.simiacryptus.text

Class NodewalkerCodec

java.lang.Object

com.simiacryptus.text.NodewalkerCodec

public class NodewalkerCodec
extends Object

The type Nodewalker codec.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	NodewalkerCodec.Decoder The type Decoder.
protected class	NodewalkerCodec.Encoder The type Encoder.

Field Summary

Fields

Modifier and Type	Field and Description
static char	END_OF_STRING The constant END_OF_STRING.
static Character	ESCAPE The constant ESCAPE.
static char	FALLBACK The constant FALLBACK.
protected CharTrie	inner The Inner.
protected PrintStream	verbose The Verbose.

Method Summary

Modifier and Type	Method and Description
CharSequence	decodePPM(byte[] data, int context) Decode ppm string.
Bits	encodePPM(String text, int context) Encode ppm bits.
protected boolean	readBackup(NodewalkerCodec.Decoder decoder) Read backup boolean.
protected void	readForward(NodewalkerCodec.Decoder decoder) Read forward.
NodewalkerCodec	setVerbose(PrintStream verbose) Sets verbose.
protected Optional<TrieNode>	writeBackup(NodewalkerCodec.Encoder encoder, char token) Write backup optional.
protected void	writeForward(NodewalkerCodec.Encoder encoder) Write forward.
protected void	writeTerminal(NodewalkerCodec.Encoder encoder) Write terminal.

Methods inherited from class java.lang.Object

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

Field Detail

ESCAPE

public static final Character ESCAPE

The constant ESCAPE.

FALLBACK

public static final char FALLBACK

The constant FALLBACK.

See Also:

Constant Field Values

END_OF_STRING

public static final char END_OF_STRING

The constant END_OF_STRING.

See Also:

Constant Field Values

inner

protected final CharTrie inner

The Inner.

verbose

protected PrintStream verbose

The Verbose.

Method Detail

decodePPM

public CharSequence decodePPM(byte[] data,
                              int context)

Decode ppm string.

Parameters:

data - the data

context - the context

Returns:

the string

encodePPM

public Bits encodePPM(String text,
                      int context)

Encode ppm bits.

Parameters:

text - the text

context - the context

Returns:

the bits

setVerbose

public NodewalkerCodec setVerbose(PrintStream verbose)

Sets verbose.

Parameters:

verbose - the verbose

Returns:

the verbose

writeForward

protected void writeForward(NodewalkerCodec.Encoder encoder)
                     throws IOException

Write forward.

Parameters:

encoder - the encoder

Throws:

IOException - the io exception

readForward

protected void readForward(NodewalkerCodec.Decoder decoder)
                    throws IOException

Read forward.

Parameters:

decoder - the decoder

Throws:

IOException - the io exception

writeBackup

protected Optional<TrieNode> writeBackup(NodewalkerCodec.Encoder encoder,
                                         char token)
                                  throws IOException

Write backup optional.

Parameters:

encoder - the encoder

token - the token

Returns:

the optional

Throws:

IOException - the io exception

readBackup

protected boolean readBackup(NodewalkerCodec.Decoder decoder)
                      throws IOException

Read backup boolean.

Parameters:

decoder - the decoder

Returns:

the boolean

Throws:

IOException - the io exception

writeTerminal

protected void writeTerminal(NodewalkerCodec.Encoder encoder)
                      throws IOException

Write terminal.

Parameters:

encoder - the encoder

Throws:

IOException - the io exception