coins.ffront
Class Scanner

java.lang.Object
  coins.ffront.Scanner

All Implemented Interfaces:

Parser.yyInput

Direct Known Subclasses:

F77Scanner

public class Scanner

extends java.lang.Object

implements Parser.yyInput

This class is a scanner generated by JFlex 1.4.1 on 04/11/16 11:07 from the specification file D:/ko1/coins/coins-0.10.2/src/coins/ffront/f77k.lex

Field Summary

static int	FORMAT
static int	FORMAT_H
(package private) int	lineNo
(package private) java.lang.Object	value
static int	YYEOF This character denotes the end of file
static int	YYINITIAL lexical states

Constructor Summary

Scanner(java.io.InputStream in)
Creates a new scanner.

Scanner(java.io.Reader in)
Creates a new scanner There is also a java.io.InputStream version of this constructor.

Method Summary

boolean	advance() move on to next token.
protected void	dp(java.lang.String msg)
int	token() classifies current token.
java.lang.Object	value() associated with current token.
void	yybegin(int newState) Enters a new lexical state
char	yycharat(int pos) Returns the character at position pos from the matched text.
void	yyclose() Closes the input stream.
int	yylength() Returns the length of the matched text region.
int	yylex() Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
void	yypushback(int number) Pushes the specified amount of characters back into the input stream.
void	yyreset(java.io.Reader reader) Resets the scanner to read from a new input stream.
int	yystate() Returns the current lexical state.
java.lang.String	yytext() Returns the text matched by the current regular expression.

Methods inherited from class java.lang.Object

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

Field Detail

YYEOF

public static final int YYEOF

This character denotes the end of file

See Also:

Constant Field Values

YYINITIAL

public static final int YYINITIAL

lexical states

See Also:

Constant Field Values

FORMAT

public static final int FORMAT

See Also:

Constant Field Values

FORMAT_H

public static final int FORMAT_H

See Also:

Constant Field Values

value

java.lang.Object value

lineNo

int lineNo

Constructor Detail

Scanner

public Scanner(java.io.Reader in)

Creates a new scanner There is also a java.io.InputStream version of this constructor.

Parameters:

in - the java.io.Reader to read input from.

Scanner

public Scanner(java.io.InputStream in)

Creates a new scanner. There is also java.io.Reader version of this constructor.

Parameters:

in - the java.io.Inputstream to read input from.

Method Detail

advance

public boolean advance()
                throws java.io.IOException

move on to next token.

Specified by:

advance in interface Parser.yyInput

Returns:

false if positioned beyond tokens.

Throws:

IOException - on input error.

token

public int token()

classifies current token. Should not be called if advance() returned false.

Specified by:

token in interface Parser.yyInput

Returns:

current %token or single character.

dp

protected void dp(java.lang.String msg)

value

public java.lang.Object value()

associated with current token. Should not be called if advance() returned false.

Specified by:

value in interface Parser.yyInput

Returns:

value for token().

yyclose

public final void yyclose()
                   throws java.io.IOException

Closes the input stream.

Throws:

java.io.IOException

yyreset

public final void yyreset(java.io.Reader reader)

Resets the scanner to read from a new input stream. Does not close the old reader. All internal variables are reset, the old input stream cannot be reused (internal buffer is discarded and lost). Lexical state is set to ZZ_INITIAL.

Parameters:

reader - the new input stream

yystate

public final int yystate()

Returns the current lexical state.

yybegin

public final void yybegin(int newState)

Enters a new lexical state

Parameters:

newState - the new lexical state

yytext

public final java.lang.String yytext()

Returns the text matched by the current regular expression.

yycharat

public final char yycharat(int pos)

Returns the character at position pos from the matched text. It is equivalent to yytext().charAt(pos), but faster

Parameters:

pos - the position of the character to fetch. A value from 0 to yylength()-1.

Returns:

the character at position pos

yylength

public final int yylength()

Returns the length of the matched text region.

yypushback

public void yypushback(int number)

Pushes the specified amount of characters back into the input stream. They will be read again by then next call of the scanning method

Parameters:

number - the number of characters to be read again. This number must not be greater than yylength()!

yylex

public int yylex()
          throws java.io.IOException

Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.

Returns:

the next token

Throws:

java.io.IOException - if any I/O-Error occurs