/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.antar.expr;

import java.util.Vector;

public class Variable extends Expression {

	private String name;

	public Variable(String name) {
		super();
		this.name = name;
	}

	@Override
	public int getDepth() {
		return 0;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	/*@Override
	public Expression evaluate(EvaluationContext context, Bindable bindable) {
		if (context != null) {
			return context.getVariableFactory().makeVariable(new Word(getName()), bindable);
		}
		return this;
	}*/

	@Override
	public Expression transform(ExpressionTransformer transformer) throws TransformException {
		return transformer.performTransformation(this);
	}

	@Override
	public EvaluationType getEvaluationType() {
		return EvaluationType.LITERAL;
	}

	@Override
	protected Vector<Expression> getChilds() {
		return null;
	}

	public boolean isValid() {
		if (name.length() == 0) {
			return false;
		}

		/*boolean startingPathItem = true;
		for (int i = 0; i < name.length(); i++) {
			char c = name.charAt(i);
			if (c == '.') {
				startingPathItem = true;
			} else {
				boolean isNormalChar = c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z' || c == '(' || c == ')' || c == '_' // See Java
																														// authorized
																														// characters
						|| c >= '0' && c <= '9' && !startingPathItem;
				if (!isNormalChar) {
					return false;
				}
				startingPathItem = false;
			}
		}*/
		return true;

	}

}