jfun.parsec

Class ConstTokenizer

java.lang.Object

jfun.parsec.ConstTokenizer

All Implemented Interfaces:

java.io.Serializable, Tokenizer

public final class ConstTokenizer
extends java.lang.Object
implements Tokenizer, java.io.Serializable

This tokenizer will always return the same token regardless of the input range.

Author:

Ben Yu 2004-11-15

See Also:

Serialized Form

Method Summary

Methods

Modifier and Type	Method and Description
static Tokenizer	instance(java.lang.Object t) Creates the Tokenizer instance.
java.lang.Object	toToken(java.lang.CharSequence cs, int from, int len) interprets the matched input range to a token object.

Methods inherited from class java.lang.Object

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

Method Detail

toToken

public java.lang.Object toToken(java.lang.CharSequence cs,
                       int from,
                       int len)

Description copied from interface: Tokenizer

interprets the matched input range to a token object.

Specified by:

toToken in interface Tokenizer

Parameters:

cs - - the input

from - - the starting point

len - - the length of the range

Returns:

- the token object.

instance

public static Tokenizer instance(java.lang.Object t)

Creates the Tokenizer instance.

Parameters:

t - the token to be returned by the tokenizer.

Returns:

the tokenizer instance.