uk.ac.manchester.cs

Class BOMSafeJavaCharStream

java.lang.Object

uk.ac.manchester.cs.BOMSafeJavaCharStream

Direct Known Subclasses:

JavaCharStream, JavaCharStream, JavaCharStream, JavaCharStream, JavaCharStream, JavaCharStream

public class BOMSafeJavaCharStream
extends Object

JavaCC generated JavaCharStream with added treatment for BOMs.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	available
protected int[]	bufcolumn
protected char[]	buffer
protected int[]	bufline
int	bufpos Position in buffer.
protected int	bufsize
protected int	column
protected int	inBuf
protected Reader	inputStream
protected int	line
protected int	maxNextCharInd
protected char[]	nextCharBuf
protected int	nextCharInd
protected boolean	prevCharIsCR
protected boolean	prevCharIsLF
static boolean	staticFlag Whether parser is static.
protected int	tabSize
protected int	tokenBegin

Constructor Summary

Constructors

Modifier	Constructor and Description
	BOMSafeJavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn) Constructor.
protected	BOMSafeJavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize) Constructor.
	BOMSafeJavaCharStream(Reader dstream, int startline, int startcolumn) Constructor.
protected	BOMSafeJavaCharStream(Reader dstream, int startline, int startcolumn, int buffersize) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	backup(int amount) Retreat.
char	BeginToken()
int	getBeginColumn()
int	getBeginLine()
int	getEndColumn()
int	getEndLine()
String	GetImage()
char	readChar() Read a character.
void	ReInit(InputStream dstream, String encoding, int startline, int startcolumn) Reinitialise.
void	ReInit(Reader dstream, int startline, int startcolumn) Reinitialise.

Methods inherited from class java.lang.Object

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

Field Detail

staticFlag

public static final boolean staticFlag

Whether parser is static.

See Also:

Constant Field Values

bufpos

public int bufpos

Position in buffer.

bufsize

protected int bufsize

available

protected int available

tokenBegin

protected int tokenBegin

bufline

protected int[] bufline

bufcolumn

protected int[] bufcolumn

column

protected int column

line

protected int line

prevCharIsCR

protected boolean prevCharIsCR

prevCharIsLF

protected boolean prevCharIsLF

inputStream

protected Reader inputStream

nextCharBuf

protected char[] nextCharBuf

buffer

protected char[] buffer

maxNextCharInd

protected int maxNextCharInd

nextCharInd

protected int nextCharInd

inBuf

protected int inBuf

tabSize

protected int tabSize

Constructor Detail

BOMSafeJavaCharStream

protected BOMSafeJavaCharStream(Reader dstream,
                     int startline,
                     int startcolumn,
                     int buffersize)

Constructor.

Parameters:

dstream - stream

startline - start line

startcolumn - start column

buffersize - buffer size

BOMSafeJavaCharStream

public BOMSafeJavaCharStream(Reader dstream,
                     int startline,
                     int startcolumn)

Constructor.

Parameters:

dstream - stream

startline - start line

startcolumn - start column

BOMSafeJavaCharStream

protected BOMSafeJavaCharStream(InputStream dstream,
                     String encoding,
                     int startline,
                     int startcolumn,
                     int buffersize)
                         throws UnsupportedEncodingException

Constructor.

Parameters:

dstream - stream

encoding - encoding

startline - start line

startcolumn - start column

buffersize - buffer size

Throws:

UnsupportedEncodingException - if encoding unsupported

BOMSafeJavaCharStream

public BOMSafeJavaCharStream(InputStream dstream,
                     String encoding,
                     int startline,
                     int startcolumn)
                      throws UnsupportedEncodingException

Constructor.

Parameters:

dstream - stream

encoding - encoding

startline - start line

startcolumn - start column

Throws:

UnsupportedEncodingException - if encoding unsupported

Method Detail

BeginToken

public char BeginToken()
                throws IOException

Returns:

starting character for token.

Throws:

IOException - IO exception

readChar

public char readChar()
              throws IOException

Read a character.

Returns:

character

Throws:

IOException - IO exception

getEndColumn

public int getEndColumn()

Returns:

end column.

getEndLine

public int getEndLine()

Returns:

end line.

getBeginColumn

public int getBeginColumn()

Returns:

column of token start

getBeginLine

public int getBeginLine()

Returns:

line number of token start

backup

public void backup(int amount)

Retreat.

Parameters:

amount - number of characters to back up

ReInit

public void ReInit(Reader dstream,
          int startline,
          int startcolumn)

Reinitialise.

Parameters:

dstream - stream

startline - start line

startcolumn - start column

ReInit

public void ReInit(InputStream dstream,
          String encoding,
          int startline,
          int startcolumn)
            throws UnsupportedEncodingException

Reinitialise.

Parameters:

dstream - stream

encoding - encoding

startline - start line

startcolumn - start column

Throws:

UnsupportedEncodingException - for unsupported encoding

GetImage

public String GetImage()

Returns:

token image as String