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/*
* Copyright (C) 2009-2011 Mathias Doenitz
*
* 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 org.parboiled;
/**
* Instances of classes implementing this interface can be used directly in a rule definition to define a parser action.
* If the class also implements the {@link org.parboiled.ContextAware} interface it will be used to inform the object of the
* current parsing {@link org.parboiled.Context} immediately before the invocation of the {@link #run} method.
* Additionally, if the class implementing this interface is an inner class (anonymous or not) and its outer class(es)
* implement(s) {@link org.parboiled.ContextAware} its outer class(es) will also be informed object of the current parsing {@link org.parboiled.Context}
* immediately before the invocation of the actions {@link #run} method.
* This allows simple anonymous action class implementations directly in the parser rule definitions, even when
* they access context-sensitive methods defined in the BaseActions or BaseParser classes.
*/
public interface Action {
/**
* Runs the parser action.
*
* @param context the current parsing context
* @return true if the parsing process is to proceed, false if the current rule is to fail
*/
boolean run(Context context);
}
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