org.exist.util.UTF16CharacterSet Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of exist-core Show documentation

eXist-db NoSQL Database Core

There is a newer version: 6.3.0

/*
 * eXist-db Open Source Native XML Database
 * Copyright (C) 2001 The eXist-db Authors
 *
 * [email protected]
 * http://www.exist-db.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package org.exist.util;

/**
 * @author Dmitriy Shabanov
 *
 */
public class UTF16CharacterSet {

    public static final int NONBMP_MIN = 0x10000;
    public static final int NONBMP_MAX = 0x10FFFF;

	public static final char SURROGATE1_MIN = 0xD800;
	public static final char SURROGATE1_MAX = 0xDBFF;
	public static final char SURROGATE2_MIN = 0xDC00;
	public static final char SURROGATE2_MAX = 0xDFFF;
	
	public static int combinePair(char high, char low) {
		return (high - SURROGATE1_MIN) * 0x400 + (low - SURROGATE2_MIN) + NONBMP_MIN;
	}
}