/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.lang;
import com.intellij.psi.tree.IElementType;
/**
* Created by IntelliJ IDEA.
* User: dmitry.cheryasov
* Date: 06.04.2008
* Time: 23:41:56
*/
public interface ITokenTypeRemapper {
/**
* An external hook to see and alter token types reported by lexer.
* A lexer might take a delegate implementing this interface.
* @param source type of an element as lexer understood it.
* @param start start index of lexeme in text (as lexer.getTokenStart() would return).
* @param end end index of lexeme in text (as lexer.getTokenEnd() would return).
* @param text text being parsed.
* @return altered (or not) element type.
**/
IElementType filter(final IElementType source, final int start, final int end, final CharSequence text);
}