01 /* This file is part of the project "Hilbert II" - http://www.qedeq.org
02 *
03 * Copyright 2000-2013, Michael Meyling <mime@qedeq.org>.
04 *
05 * "Hilbert II" is free software; you can redistribute
06 * it and/or modify it under the terms of the GNU General Public
07 * License as published by the Free Software Foundation; either
08 * version 2 of the License, or (at your option) any later version.
09 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 package org.qedeq.kernel.bo.common;
17
18 import org.qedeq.kernel.se.base.list.Element;
19
20 /**
21 * Transfer a QEDEQ formula or term into UTF-8 text.
22 *
23 * @author Michael Meyling
24 */
25 public interface Element2Utf8 {
26
27 /**
28 * Get UTF-8 element presentation.
29 *
30 * @param element Print this element.
31 * @return UTF-8 form of element.
32 */
33 public abstract String getUtf8(final Element element);
34
35
36 /**
37 * Get an UTF-8 element presentation that doesn't exceed the given maximum column
38 * length. If the presentation doesn't fit into one row it is split and several rows
39 * are returned.
40 *
41 * @param element Print this element.
42 * @param maxCols Maximum column number. If equal or below zero a maximum is
43 * neglected.
44 * @return UTF-8 form of element (might be one or several rows).
45 */
46 public abstract String[] getUtf8(final Element element, int maxCols);
47
48
49 }
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