content: /**
   *  Copyright (c) 2013-2016 Angelo ZERR.
   *  All rights reserved. This program and the accompanying materials
   *  are made available under the terms of the Eclipse Public License v1.0
   *  which accompanies this distribution, and is available at
   *  http://www.eclipse.org/legal/epl-v10.html
   *
   *  Contributors:
   *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
   */
  package tern.server.protocol.html;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * {@link IState} implementation with several {@link ScriptTagRegion}.
   *
   */
  class MultiState implements IState {
  
  	private final List<IState> states;
  	private IState currentState;
  
  	public MultiState(ScriptTagRegion[] tagRegions) {
  		this.states = new ArrayList<IState>(tagRegions.length);
  		for (int i = 0; i < tagRegions.length; i++) {
  			states.add(new State(tagRegions[i]));
  		}
  		reset();
  	}
  
  	@Override
  	public Region update(char c) {
  		Region region = null;
  		if (currentState != null) {
  			region = currentState.update(c);
  		} else {
  			Region current = null;
  			for (IState state : states) {
  				current = state.update(c);
  				if (current != null) {
  					currentState = state;
  					region = current;
  					break;
  				}
  			}
  		}
  		return region;
  	}
  
  	@Override
  	public boolean isNextRegionToFindType(RegionType type) {
  		return currentState != null ? currentState.isNextRegionToFindType(type)
  				: false;
  	}
  
  	@Override
  	public void reset() {
  		currentState = null;
  		for (IState state : states) {
  			state.reset();
  		}
  	}
  }