org.apache.batik.css.parser

Class Scanner

public class Scanner extends Object

This class represents a CSS scanner - an object which decodes CSS lexical units.

Field Summary
protected int	blankCharacters The characters to skip to create the string which represents the current token.
protected char[]	buffer The recording buffer.
protected int	current The current char.
protected int	end The end offset of the last lexical unit.
protected int	position The current position in the buffer.
protected NormalizingReader	reader The reader.
protected int	start The start offset of the last lexical unit.
protected int	type The type of the current lexical unit.

Constructor Summary
	Scanner(Reader r) Creates a new Scanner object.
	Scanner(InputStream is, String enc) Creates a new Scanner object.
	Scanner(String s) Creates a new Scanner object.

Method Summary
void	clearBuffer() Clears the buffer.
protected int	dotNumber() Scans the decimal part of a number.
protected int	endGap() Returns the end gap of the current lexical unit.
protected void	escape() Scans an escape sequence, if one.
char[]	getBuffer() Returns the buffer used to store the chars.
int	getColumn() Returns the current column.
int	getEnd() Returns the end offset of the last lexical unit.
int	getLine() Returns the current line.
int	getStart() Returns the start offset of the last lexical unit.
String	getStringValue() Returns the string representation of the current lexical unit.
int	getType() The current lexical unit type like defined in LexicalUnits.
protected static boolean	isEqualIgnoreCase(int i, char c) Compares the given int with the given character, ignoring case.
int	next() Returns the next token.
protected int	nextChar() Sets the value of the current char to the next character or -1 if the end of stream has been reached.
protected void	nextToken() Returns the next token.
protected int	number() Scans a number.
protected int	numberUnit(boolean integer) Scans the unit of a number.
void	scanAtRule() Scans a @rule value.
protected int	string1() Scans a single quoted string.
protected int	string2() Scans a double quoted string.

Field Detail

blankCharacters

protected int blankCharacters

The characters to skip to create the string which represents the current token.

buffer

protected char[] buffer

The recording buffer.

current

protected int current

The current char.

end

protected int end

The end offset of the last lexical unit.

position

protected int position

The current position in the buffer.

reader

protected NormalizingReader reader

The reader.

start

protected int start

The start offset of the last lexical unit.

type

protected int type

The type of the current lexical unit.

Constructor Detail

Scanner

public Scanner(Reader r)

Creates a new Scanner object.

Parameters: r The reader to scan.

Scanner

public Scanner(InputStream is, String enc)

Creates a new Scanner object.

Parameters: is The input stream to scan. enc The encoding to use to decode the input stream, or null.

Scanner

public Scanner(String s)

Creates a new Scanner object.

Parameters: s The string to scan.

Method Detail

clearBuffer

public void clearBuffer()

Clears the buffer.

dotNumber

protected int dotNumber()

Scans the decimal part of a number.

endGap

protected int endGap()

Returns the end gap of the current lexical unit.

escape

protected void escape()

Scans an escape sequence, if one.

getBuffer

public char[] getBuffer()

Returns the buffer used to store the chars.

getColumn

public int getColumn()

Returns the current column.

getEnd

public int getEnd()

Returns the end offset of the last lexical unit.

getLine

public int getLine()

Returns the current line.

getStart

public int getStart()

Returns the start offset of the last lexical unit.

getStringValue

public String getStringValue()

Returns the string representation of the current lexical unit.

getType

public int getType()

The current lexical unit type like defined in LexicalUnits.

isEqualIgnoreCase

protected static boolean isEqualIgnoreCase(int i, char c)

Compares the given int with the given character, ignoring case.

public int next()

Returns the next token.

nextChar

protected int nextChar()

Sets the value of the current char to the next character or -1 if the end of stream has been reached.

nextToken

protected void nextToken()

Returns the next token.

number

protected int number()

Scans a number.

numberUnit

protected int numberUnit(boolean integer)

Scans the unit of a number.

scanAtRule

public void scanAtRule()

Scans a @rule value. This method assumes that the current lexical unit is a at keyword.

string1

protected int string1()

Scans a single quoted string.

string2

protected int string2()

Scans a double quoted string.