com.scriptbasic.lexer

Class BasicLexicalElement

java.lang.Object

com.scriptbasic.lexer.AbstractLexicalElement

com.scriptbasic.lexer.BasicLexicalElement

All Implemented Interfaces:

LexicalElement, SourceLocationBound

public class BasicLexicalElement
extends AbstractLexicalElement

Field Summary

Fields inherited from interface com.scriptbasic.interfaces.LexicalElement

TYPE_BOOLEAN, TYPE_DOUBLE, TYPE_IDENTIFIER, TYPE_LONG, TYPE_STRING, TYPE_SYMBOL

Constructor Summary

Constructors

Constructor and Description
BasicLexicalElement()

Method Summary

Methods

Modifier and Type	Method and Description
Boolean	booleanValue()
Double	doubleValue()
String	getFileName() Get the name of the file to which the object is bound to.
String	getLexeme() Get the original representation of the lexical element the way it was specified in the source code.
int	getLineNumber() Get the line number to which the object is bound to.
int	getPosition() Get the position on the line to which the object is bound to.
int	getType() Get the type of the lexical element.
Boolean	isBoolean()
Boolean	isDouble()
Boolean	isIdentifier()
Boolean	isLineTerminator()
Boolean	isLong()
Boolean	isString()
Boolean	isSymbol()
Boolean	isSymbol(String lexeme) Return true if the lexical element is a symbol and the lexeme matches the the actual symbol.
Long	longValue() Get the long value of the element.
void	setBooleanValue(Boolean booleanValue)
void	setDoubleValue(Double doubleValue)
void	setFileName(String fileName)
void	setLexeme(String lexeme)
void	setLineNumber(int lineNumber)
void	setLongValue(long longValue)
void	setPosition(int position)
void	setStringValue(String stringValue)
void	setType(int type)
String	stringValue() Get the string value of the lexical element.
String	toString()

Methods inherited from class com.scriptbasic.lexer.AbstractLexicalElement

isLiteralConstant, isNumeric

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicLexicalElement

public BasicLexicalElement()

Method Detail

setLexeme

public void setLexeme(String lexeme)

setType

public void setType(int type)

setLineNumber

public void setLineNumber(int lineNumber)

setFileName

public void setFileName(String fileName)

getPosition

public int getPosition()

Description copied from interface: SourceLocationBound

Get the position on the line to which the object is bound to.

Returns:

the position within the line

setPosition

public void setPosition(int position)

getLexeme

public String getLexeme()

Description copied from interface: LexicalElement

Get the original representation of the lexical element the way it was specified in the source code.

Returns:

the lexical element as string

getFileName

public String getFileName()

Description copied from interface: SourceLocationBound

Get the name of the file to which the object is bound to.

Returns:

the name of the file

getLineNumber

public int getLineNumber()

Description copied from interface: SourceLocationBound

Get the line number to which the object is bound to.

Returns:

the line number in the file

getType

public int getType()

Description copied from interface: LexicalElement

Get the type of the lexical element.

Returns:

setStringValue

public void setStringValue(String stringValue)

setLongValue

public void setLongValue(long longValue)

setDoubleValue

public void setDoubleValue(Double doubleValue)

setBooleanValue

public void setBooleanValue(Boolean booleanValue)

stringValue

public String stringValue()

Description copied from interface: LexicalElement

Get the string value of the lexical element. This method should be called only when the lexical element is a string literal. Otherwise the implementation will throw IllegalArgumentException();

Returns:

longValue

public Long longValue()

Description copied from interface: LexicalElement

Get the long value of the element. This method should only be called when the type of the symbol is long. Otherwise the implementation will throw IllegalArgumentException();

Returns:

doubleValue

public Double doubleValue()

booleanValue

public Boolean booleanValue()

isBoolean

public Boolean isBoolean()

isString

public Boolean isString()

isDouble

public Boolean isDouble()

isLong

public Boolean isLong()

isIdentifier

public Boolean isIdentifier()

isSymbol

public Boolean isSymbol()

isSymbol

public Boolean isSymbol(String lexeme)

Description copied from interface: LexicalElement

Return true if the lexical element is a symbol and the lexeme matches the the actual symbol.

Parameters:

lexeme - to match by the lexical element. The parameter must not ne null.

Returns:

true if the lexical element is a symbol and the lexeme matches the parameter lexeme.

toString

public String toString()

Overrides:

toString in class Object

isLineTerminator

public Boolean isLineTerminator()