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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jface.text.formatter;
import java.util.LinkedList;
import java.util.Map;
/**
* Formatting strategy for context based content formatting.
* <p>
*
* @since 3.0
*/
public abstract class ContextBasedFormattingStrategy implements IFormattingStrategy, IFormattingStrategyExtension {
/** The current preferences for formatting */
private Map fCurrentPreferences= null;
/** The list of preferences for initiated the formatting steps */
private final LinkedList fPreferences= new LinkedList();
/*
* @see org.eclipse.jface.text.formatter.IFormattingStrategyExtension#format()
*/
public void format() {
fCurrentPreferences= (Map)fPreferences.removeFirst();
}
/*
* @see org.eclipse.jface.text.formatter.IFormattingStrategy#format(java.lang.String, boolean, java.lang.String, int[])
*/
public String format(String content, boolean start, String indentation, int[] positions) {
return null;
}
/*
* @see org.eclipse.jface.text.formatter.IFormattingStrategyExtension#formatterStarts(org.eclipse.jface.text.formatter.IFormattingContext)
*/
public void formatterStarts(final IFormattingContext context) {
fPreferences.addLast(context.getProperty(FormattingContextProperties.CONTEXT_PREFERENCES));
}
/*
* @see IFormattingStrategy#formatterStarts(String)
*/
public void formatterStarts(final String indentation) {
// Do nothing
}
/*
* @see org.eclipse.jface.text.formatter.IFormattingStrategyExtension#formatterStops()
*/
public void formatterStops() {
fPreferences.clear();
fCurrentPreferences= null;
}
/**
* Returns the preferences used for the current formatting step.
*
* @return The preferences for the current formatting step
*/
public final Map getPreferences() {
return fCurrentPreferences;
}
}
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