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A metacompilation framework for Java using attribute grammars.
There is a newer version: 2.3.6
/* Copyright (c) 2013, Jesper Öqvist 
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the  nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.jastadd.tinytemplate;

import java.io.PrintStream;
import java.io.PrintWriter;

/**
 * Dumb template context that knows no variables or attributes.
 * Attempts to pretty-print the template fragments.
 * @author Jesper Öqvist 
 */
public class DumbContext extends TemplateContext {

	private final Indentation indentation = new Indentation("  ");

	@Override
	public Object evalVariable(String varName) {
		return "$" + varName;
	}

	@Override
	public Object evalAttribute(String attrName) {
		return "#" + attrName;
	}

	@Override
	public String evalIndentation(int level) {
		return indentation.get(level);
	}

	@Override
	public void expand(TemplateContext tc, String templateName, PrintStream out) {
	}

	@Override
	public void expand(TemplateContext tc, String templateName, PrintWriter out) {
	}

	@Override
	public void expand(TemplateContext tc, String templateName, StringBuffer out) {
	}

	@Override
	public void expand(TemplateContext tc, String templateName,
			StringBuilder out) {
	}

	@Override
	public void bind(String varName, Object value) {
	}

	@Override
	public void bind(String varName, boolean value) {
	}

	@Override
	public void flushVariables() {
	}

}