Package org.htmlunit.cssparser.parser

Class CssCharStream

java.lang.Object

org.htmlunit.cssparser.parser.CssCharStream

All Implemented Interfaces:

CharStream

public final class CssCharStream
extends java.lang.Object
implements CharStream

An implementation of interface CharStream. There is no processing of escaping in this class because the escaping is part of the parser. CSS has some strange rules about that, so processing unicode escapes in this class is too early.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	available
private int[]	bufcolumn
private char[]	buffer
private static int	BUFFER_SIZE
private int[]	bufline
int	bufpos	Position in buffer.
(package private) int	bufsize
private int	column
private int	inBuf
private java.io.Reader	inputStream
private int	line
private int	maxNextCharInd
private boolean	prevCharIsCR
private boolean	prevCharIsLF
static boolean	staticFlag	Whether parser is static.
private int	tabSize
(package private) int	tokenBegin
private boolean	trackLineColumn

Constructor Summary

Constructors

Constructor	Description
CssCharStream(java.io.Reader dstream, int startline, int startcolumn)	Constructor.
CssCharStream(java.io.Reader dstream, int startline, int startcolumn, int buffersize)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	adjustBeginLineColumn(int newLine, int newCol)	Method to adjust line and column numbers for the start of a token.
void	backup(int amount)	Backup a number of characters.
char	BeginToken()	Start.
void	Done()	Reset buffer when finished.
private void	ExpandBuff(boolean wrapAround)
private void	FillBuff()
int	getBeginColumn()	Get token beginning column number.
int	getBeginLine()	Get token beginning line number.
int	getColumn()	Deprecated.
int	getEndColumn()	Get token end column number.
int	getEndLine()	Get token end line number.
java.lang.String	GetImage()	Get token literal value.
int	getLine()	Deprecated.
char[]	GetSuffix(int len)	Get the suffix.
int	getTabSize()
boolean	getTrackLineColumn()
char	readChar()	Read a character.
void	setTabSize(int i)
void	setTrackLineColumn(boolean tlc)
private void	UpdateLineColumn(char c)

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

BUFFER_SIZE

private static final int BUFFER_SIZE

See Also:

Constant Field Values

bufsize

int bufsize

available

int available

tokenBegin

int tokenBegin

bufpos

public int bufpos

Position in buffer.

bufline

private int[] bufline

bufcolumn

private int[] bufcolumn

column

private int column

line

private int line

prevCharIsCR

private boolean prevCharIsCR

prevCharIsLF

private boolean prevCharIsLF

inputStream

private java.io.Reader inputStream

buffer

private char[] buffer

maxNextCharInd

private int maxNextCharInd

inBuf

private int inBuf

tabSize

private int tabSize

trackLineColumn

private boolean trackLineColumn

Constructor Detail

CssCharStream

public CssCharStream(java.io.Reader dstream,
                     int startline,
                     int startcolumn,
                     int buffersize)

Constructor.

Parameters:

dstream - the stream to read from

startline - startline

startcolumn - startcolumn

buffersize - buffersize

CssCharStream

public CssCharStream(java.io.Reader dstream,
                     int startline,
                     int startcolumn)

Constructor.

Parameters:

dstream - the stream to read from

startline - startline

startcolumn - startcolumn

Method Detail

ExpandBuff

private void ExpandBuff(boolean wrapAround)

FillBuff

private final void FillBuff()
                     throws java.io.IOException

Throws:

java.io.IOException

BeginToken

public final char BeginToken()
                      throws java.io.IOException

Start.

Specified by:

BeginToken in interface CharStream

Throws:

java.io.IOException

UpdateLineColumn

private final void UpdateLineColumn(char c)

readChar

public final char readChar()
                    throws java.io.IOException

Read a character.

Specified by:

readChar in interface CharStream

Throws:

java.io.IOException

getColumn

@Deprecated
public final int getColumn()

Deprecated.

Description copied from interface: CharStream

Returns the column position of the character last read.

Specified by:

getColumn in interface CharStream

See Also:

CharStream.getEndColumn()

getLine

@Deprecated
public final int getLine()

Deprecated.

Description copied from interface: CharStream

Returns the line number of the character last read.

Specified by:

getLine in interface CharStream

See Also:

CharStream.getEndLine()

getEndColumn

public final int getEndColumn()

Get token end column number.

Specified by:

getEndColumn in interface CharStream

getEndLine

public final int getEndLine()

Get token end line number.

Specified by:

getEndLine in interface CharStream

getBeginColumn

public final int getBeginColumn()

Get token beginning column number.

Specified by:

getBeginColumn in interface CharStream

getBeginLine

public final int getBeginLine()

Get token beginning line number.

Specified by:

getBeginLine in interface CharStream

backup

public final void backup(int amount)

Backup a number of characters.

Specified by:

backup in interface CharStream

GetImage

public final java.lang.String GetImage()

Get token literal value.

Specified by:

GetImage in interface CharStream

GetSuffix

public final char[] GetSuffix(int len)

Get the suffix.

Specified by:

GetSuffix in interface CharStream

Done

public void Done()

Reset buffer when finished.

Specified by:

Done in interface CharStream

adjustBeginLineColumn

public void adjustBeginLineColumn(int newLine,
                                  int newCol)

Method to adjust line and column numbers for the start of a token.

Parameters:

newLine - the new line

newCol - the new column

setTabSize

public void setTabSize(int i)

Specified by:

setTabSize in interface CharStream

getTabSize

public int getTabSize()

Specified by:

getTabSize in interface CharStream

getTrackLineColumn

public boolean getTrackLineColumn()

Specified by:

getTrackLineColumn in interface CharStream

setTrackLineColumn

public void setTrackLineColumn(boolean tlc)

Specified by:

setTrackLineColumn in interface CharStream