de.uni.bremen.monty.moco.codegeneration.context.CodeWriter.java Source code

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Here is the source code for de.uni.bremen.monty.moco.codegeneration.context.CodeWriter.java

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/*
 * moco, the Monty Compiler
 * Copyright (c) 2013-2014, Monty's Coconut, All rights reserved.
 *
 * This file is part of moco, the Monty Compiler.
 *
 * moco 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 3.0 of the License, or (at your option) any later version.
 *
 * moco 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.
 *
 * Linking this program and/or its accompanying libraries statically or
 * dynamically with other modules is making a combined work based on this
 * program. Thus, the terms and conditions of the GNU General Public License
 * cover the whole combination.
 *
 * As a special exception, the copyright holders of moco give
 * you permission to link this programm and/or its accompanying libraries
 * with independent modules to produce an executable, regardless of the
 * license terms of these independent modules, and to copy and distribute the
 * resulting executable under terms of your choice, provided that you also meet,
 * for each linked independent module, the terms and conditions of the
 * license of that module.
 *
 * An independent module is a module which is not
 * derived from or based on this program and/or its accompanying libraries.
 * If you modify this library, you may extend this exception to your version of
 * the program or library, but you are not obliged to do so. If you do not wish
 * to do so, delete this exception statement from your version.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library.
 */
package de.uni.bremen.monty.moco.codegeneration.context;

import java.lang.StringBuffer;
import org.apache.commons.lang3.StringUtils;

public class CodeWriter {

    /** StringBuffer the CodeContext writes to. */
    private StringBuffer stringBuffer = new StringBuffer();

    /** Current level of indentation. */
    private int indentation = 0;

    /** Increment the current level of indentation. */
    public void indent() {
        indentation++;
    }

    /** Decrement the current level of indentation. */
    public void dedent() {
        indentation--;
    }

    /** Write a line to this buffer.
     *
     * The line gets indented according to the level of indentation and is terminated by a newline. */
    public void appendLine(String data) {
        stringBuffer.append(StringUtils.repeat(" ", indentation * 4));
        stringBuffer.append(data);
        appendEmptyLine();
    }

    /** Write an empty line to this buffer. */
    public void appendEmptyLine() {
        stringBuffer.append("\n");
    }

    /** Return this buffer. */
    public StringBuffer getBuffer() {
        return stringBuffer;
    }
}