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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.fragment;

import java.io.PrintStream;

import org.jastadd.tinytemplate.Indentation;
import org.jastadd.tinytemplate.TemplateContext;

/**
 * Represents the system-dependent newline character sequence.
 *
 * This is a singleton class.
 *
 * @author Jesper Öqvist 
 */
public class NewlineFragment extends AbstractFragment {

	private static final String SYS_NL = System.getProperty("line.separator");

	/**
	 * Singleton instance
	 */
	public static Fragment INSTANCE = new NewlineFragment();

	private NewlineFragment() {}

	@Override
	public void expand(TemplateContext context, StringBuilder out) {
		out.append(SYS_NL);
	}

	@Override
	public String toString() {
		return SYS_NL;
	}

	@Override
	public boolean isNewline() {
		return true;
	}

	@Override
	public boolean isWhitespace() {
		return true;
	}

	@Override
	public void printAspectCode(Indentation ind, int lvl, PrintStream out) {
		out.println(ind.get(lvl) + "out.println();");
	}
}