edu.upenn.cis.pdtb.lexyacc
Class Yylex

java.lang.Object
  edu.upenn.cis.pdtb.lexyacc.Yylex

All Implemented Interfaces:

java_cup.runtime.Scanner

public class Yylex

extends java.lang.Object

implements java_cup.runtime.Scanner

This class is a scanner generated by JFlex 1.4.1 on 2/5/08 8:32 PM from the specification file D:/work/PDTBCVS/PDTBFlat/LexYacc1/Rel.lex

Field Summary

static int	YYENTREL
static int	YYEOF This character denotes the end of file
static int	YYFEAT
static int	YYIMPLICIT lexical states
static int	YYINITIAL
static int	YYRAW

Constructor Summary

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

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

Yylex(java.io.Reader reader, java.lang.String rawString, PTBTreeNode root, PDTBRelationList rList)

Method Summary

PDTBStringBuffer	getCurrentRawBuffer()
java.lang.String	getRawString()
PDTBRelationList	getRelationList()
PTBTreeNode	getRoot()
java_cup.runtime.Symbol	next_token() Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
void	reset(java.io.Reader reader, java.lang.String rawString, PTBTreeNode root, PDTBRelationList rList)
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.
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

YYIMPLICIT

public static final int YYIMPLICIT

lexical states

See Also:

Constant Field Values

YYRAW

public static final int YYRAW

See Also:

Constant Field Values

YYINITIAL

public static final int YYINITIAL

See Also:

Constant Field Values

YYFEAT

public static final int YYFEAT

See Also:

Constant Field Values

YYENTREL

public static final int YYENTREL

See Also:

Constant Field Values

Constructor Detail

Yylex

public Yylex(java.io.Reader reader,
             java.lang.String rawString,
             PTBTreeNode root,
             PDTBRelationList rList)

Yylex

public Yylex(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.

Yylex

public Yylex(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

getRoot

public PTBTreeNode getRoot()

getRawString

public java.lang.String getRawString()

getRelationList

public PDTBRelationList getRelationList()

reset

public void reset(java.io.Reader reader,
                  java.lang.String rawString,
                  PTBTreeNode root,
                  PDTBRelationList rList)

getCurrentRawBuffer

public PDTBStringBuffer getCurrentRawBuffer()

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()!

next_token

public java_cup.runtime.Symbol next_token()
                                   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.

Specified by:

next_token in interface java_cup.runtime.Scanner

Returns:

the next token

Throws:

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