edu.washington.cs.knowitall.util
Class Morpha

java.lang.Object
  extended by edu.washington.cs.knowitall.util.Morpha

public class Morpha
extends java.lang.Object

This class is a scanner generated by JFlex 1.4.1 on 1/17/05 5:36 PM from the specification file Morpha.flex


Field Summary
static int any
           
static int noun
           
static int scan
          lexical states
static int verb
           
static int YYEOF
          This character denotes the end of file
static int YYINITIAL
           
 
Constructor Summary
Morpha(java.io.InputStream in)
          Creates a new scanner.
Morpha(java.io.Reader in)
          Creates a new scanner There is also a java.io.InputStream version of this constructor.
 
Method Summary
 java.lang.String next()
          Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
 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

scan

public static final int scan
lexical states

See Also:
Constant Field Values

YYINITIAL

public static final int YYINITIAL
See Also:
Constant Field Values

any

public static final int any
See Also:
Constant Field Values

noun

public static final int noun
See Also:
Constant Field Values

verb

public static final int verb
See Also:
Constant Field Values
Constructor Detail

Morpha

public Morpha(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.

Morpha

public Morpha(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

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

public java.lang.String next()
                      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