cpptools.preprocessor
Class AbstractTokenFilter

java.lang.Object
  cpptools.preprocessor.AbstractTokenFilter

All Implemented Interfaces:

TokenFilter

Direct Known Subclasses:

Define, Macro

public abstract class AbstractTokenFilter
extends java.lang.Object
implements TokenFilter

Captures filter common behaviours.

Author:

Mathieu Champlon

Constructor Summary

AbstractTokenFilter(java.util.Stack<Token> buffer, java.lang.String name, java.lang.String value)
Create an abstract token filter.

Method Summary

protected void	insert(Token location) Insert filtered tokens into the token flow.
boolean	matches(java.lang.String name) Test if the filter name matches a given name.
protected void	undo(Token token, Token next) Put both tokens back into the flow.

Methods inherited from class java.lang.Object

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

Methods inherited from interface cpptools.preprocessor.TokenFilter

process

Constructor Detail

AbstractTokenFilter

public AbstractTokenFilter(java.util.Stack<Token> buffer,
                           java.lang.String name,
                           java.lang.String value)

Create an abstract token filter.

Parameters:

buffer - the token stack where to output filtered tokens

name - the name of the filter

value - the raw value of the filtering result

Method Detail

undo

protected final void undo(Token token,
                          Token next)

Put both tokens back into the flow.

Parameters:

token - the head of the flow

next - the token following the head

insert

protected final void insert(Token location)

Insert filtered tokens into the token flow.

Parameters:

location - the location of the insertion

matches

public final boolean matches(java.lang.String name)

Test if the filter name matches a given name.

Specified by:

matches in interface TokenFilter

Parameters:

name - the name to test

Returns:

whether the filter name matches or not