com.jasml.compiler
Class Scanner

java.lang.Object
  com.jasml.compiler.Scanner

All Implemented Interfaces:

Scannable

public class Scanner

extends java.lang.Object

implements Scannable

Field Summary

(package private) char[]	buf
private int	columnNumber
private int	columnNumber1
private boolean	columnNumberOn
private int	columnNumberStart
private int	columnNumberStart1
private int	contentLength
private int	currentLineNumber1
private static char	EndChar
private int	lineNumber
private boolean	lineNumberOn
private int	lineNumberStart
private int	lineNumberStart1
private int	offset
private int	offset1
private int	oldColumnNumber
private int	oldColumnNumber1
private java.lang.String	token
private java.lang.String	token1
private int	tokenOffset
private int	tokenOffset1
private int	tokenType
private int	tokenType1

Fields inherited from interface com.jasml.compiler.Scannable

AccessFlag, Attribute, Bracket_Left, Bracket_Right, Char, Colon, Comma, Defualt, EOF, Equal, Instruction, JavaName, Number_Double, Number_Double_NaN, Number_Double_Negativ_Infinity, Number_Double_Positive_Infinity, Number_Float, Number_Float_NaN, Number_Float_Negativ_Infinity, Number_Float_Positive_Infinity, Number_Integer, Number_Long, Pointer, SBracket_Left, SBracket_Right, String, WhiteSpace

Constructor Summary

private	Scanner()
	Scanner(java.io.File file)
	Scanner(java.lang.String content)
	Scanner(java.lang.String content, int startingOffset, int length)

Method Summary

private static void	delComment(char[] cs) delete the single line and multi line comment, if multiline comment is not closed.
private static void	exception(int offset, int line, int column, java.lang.String msg)
private static void	exception(Scanner sc, java.lang.String msg)
int	getColumnNumberEnd()
int	getColumnNumberStart()
char[]	getContent()
int	getLength()
int	getLineNumberEnd()
int	getLineNumberStart()
int	getOffset()
private boolean	isAccessFlag(java.lang.String s)
private boolean	isInstruction(java.lang.String s)
private boolean	isSeparatingChar(char c)
private boolean	isValidName(java.lang.String s)
static void	main(java.lang.String[] s)
void	mark()
int	nextToken()
static Scanner	partialScanner(char[] content, int offset, int length, int columnNumber, int lineNumber) create a scanner using the content of the Scanner passed down.
private char	read()
void	restore()
void	setColumnNumberOn(boolean columnNumberOn)
void	setLineNumberOn(boolean lineNumberOn)
private void	skipSpaces()
private int	specialNumberType(java.lang.String s) processing speical number types. see Negativ_Infinity Positive_Infinity NaN definitions in Scannable.
java.lang.String	token()
int	tokenType()
private void	unread()

Methods inherited from class java.lang.Object

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

Field Detail

lineNumberOn

private boolean lineNumberOn

columnNumberOn

private boolean columnNumberOn

lineNumber

private int lineNumber

lineNumberStart

private int lineNumberStart

columnNumber

private int columnNumber

columnNumberStart

private int columnNumberStart

buf

char[] buf

offset

private int offset

tokenOffset

private int tokenOffset

tokenType

private int tokenType

contentLength

private int contentLength

oldColumnNumber

private int oldColumnNumber

token

private java.lang.String token

EndChar

private static final char EndChar

See Also:

Constant Field Values

currentLineNumber1

private int currentLineNumber1

lineNumberStart1

private int lineNumberStart1

columnNumber1

private int columnNumber1

columnNumberStart1

private int columnNumberStart1

offset1

private int offset1

tokenOffset1

private int tokenOffset1

tokenType1

private int tokenType1

oldColumnNumber1

private int oldColumnNumber1

token1

private java.lang.String token1

Constructor Detail

Scanner

private Scanner()

Scanner

public Scanner(java.lang.String content)
        throws ParsingException

Scanner

public Scanner(java.lang.String content,
               int startingOffset,
               int length)

Scanner

public Scanner(java.io.File file)
        throws ParsingException

Method Detail

partialScanner

public static Scanner partialScanner(char[] content,
                                     int offset,
                                     int length,
                                     int columnNumber,
                                     int lineNumber)
                              throws ParsingException

create a scanner using the content of the Scanner passed down. the new Scanner will scan from offset, end at offset+length

Parameters:

content -

offset -

length -

columnNumber -

lineNumber -

Returns:

Throws:

ParsingException

getContent

public char[] getContent()

mark

public void mark()

restore

public void restore()

setLineNumberOn

public void setLineNumberOn(boolean lineNumberOn)

setColumnNumberOn

public void setColumnNumberOn(boolean columnNumberOn)

nextToken

public int nextToken()
              throws ParsingException

Throws:

ParsingException

specialNumberType

private int specialNumberType(java.lang.String s)

processing speical number types. see Negativ_Infinity Positive_Infinity NaN definitions in Scannable.

Parameters:

s -

Returns:

String

isValidName

private boolean isValidName(java.lang.String s)

getOffset

public int getOffset()

getLength

public int getLength()

tokenType

public int tokenType()

token

public java.lang.String token()

getLineNumberStart

public int getLineNumberStart()

getLineNumberEnd

public int getLineNumberEnd()

getColumnNumberStart

public int getColumnNumberStart()

getColumnNumberEnd

public int getColumnNumberEnd()

skipSpaces

private void skipSpaces()

read

private char read()

unread

private void unread()

delComment

private static void delComment(char[] cs)
                        throws ParsingException

delete the single line and multi line comment, if multiline comment is not closed. TODO: this can be merged into read()

Parameters:

cs -

Throws:

ParsingException

isSeparatingChar

private boolean isSeparatingChar(char c)

isInstruction

private boolean isInstruction(java.lang.String s)

isAccessFlag

private boolean isAccessFlag(java.lang.String s)

exception

private static void exception(Scanner sc,
                              java.lang.String msg)
                       throws ParsingException

Throws:

ParsingException

exception

private static void exception(int offset,
                              int line,
                              int column,
                              java.lang.String msg)
                       throws ParsingException

Throws:

ParsingException

main

public static void main(java.lang.String[] s)
                 throws java.lang.Exception

Throws:

java.lang.Exception